ffmpeg.c 148 KB
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/*
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 * FFmpeg main
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 * Copyright (c) 2000-2003 Fabrice Bellard
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 *
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 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#define HAVE_AV_CONFIG_H
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#include <limits.h>
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#include "avformat.h"
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#include "swscale.h"
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#include "framehook.h"
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#include "dsputil.h"
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#include "opt.h"
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#ifndef __MINGW32__
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#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <termios.h>
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#include <sys/resource.h>
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#include <signal.h>
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#endif
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#ifdef CONFIG_OS2
#include <sys/types.h>
#include <sys/select.h>
#include <stdlib.h>
#endif
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#undef time //needed because HAVE_AV_CONFIG_H is defined on top
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#include <time.h>
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#include "version.h"
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#include "cmdutils.h"

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#undef NDEBUG
#include <assert.h>

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#if !defined(INFINITY) && defined(HUGE_VAL)
#define INFINITY HUGE_VAL
#endif
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/* select an input stream for an output stream */
typedef struct AVStreamMap {
    int file_index;
    int stream_index;
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    int sync_file_index;
    int sync_stream_index;
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} AVStreamMap;

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/** select an input file for an output file */
typedef struct AVMetaDataMap {
    int out_file;
    int in_file;
} AVMetaDataMap;

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extern const OptionDef options[];

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static void show_help(void);
static void show_license(void);
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static int opt_default(const char *opt, const char *arg);
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#define MAX_FILES 20

static AVFormatContext *input_files[MAX_FILES];
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static int64_t input_files_ts_offset[MAX_FILES];
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static int nb_input_files = 0;

static AVFormatContext *output_files[MAX_FILES];
static int nb_output_files = 0;

static AVStreamMap stream_maps[MAX_FILES];
static int nb_stream_maps;

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static AVMetaDataMap meta_data_maps[MAX_FILES];
static int nb_meta_data_maps;

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static AVInputFormat *file_iformat;
static AVOutputFormat *file_oformat;
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static AVImageFormat *image_format;
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static int frame_width  = 0;
static int frame_height = 0;
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static float frame_aspect_ratio = 0;
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static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
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static int frame_padtop  = 0;
static int frame_padbottom = 0;
static int frame_padleft  = 0;
static int frame_padright = 0;
static int padcolor[3] = {16,128,128}; /* default to black */
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static int frame_topBand  = 0;
static int frame_bottomBand = 0;
static int frame_leftBand  = 0;
static int frame_rightBand = 0;
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static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
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static int frame_rate = 25;
static int frame_rate_base = 1;
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static int video_bit_rate = 200*1000;
static int video_bit_rate_tolerance = 4000*1000;
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static float video_qscale = 0;
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static int video_qmin = 2;
static int video_qmax = 31;
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static int video_lmin = 2*FF_QP2LAMBDA;
static int video_lmax = 31*FF_QP2LAMBDA;
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static int video_mb_lmin = 2*FF_QP2LAMBDA;
static int video_mb_lmax = 31*FF_QP2LAMBDA;
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static int video_qdiff = 3;
static float video_qblur = 0.5;
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static float video_qsquish = 0.0;
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static float video_qcomp = 0.5;
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static uint16_t *intra_matrix = NULL;
static uint16_t *inter_matrix = NULL;
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#if 0 //experimental, (can be removed)
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static float video_rc_qsquish=1.0;
static float video_rc_qmod_amp=0;
static int video_rc_qmod_freq=0;
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#endif
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static char *video_rc_override_string=NULL;
static char *video_rc_eq="tex^qComp";
static int video_rc_buffer_size=0;
static float video_rc_buffer_aggressivity=1.0;
static int video_rc_max_rate=0;
static int video_rc_min_rate=0;
static float video_rc_initial_cplx=0;
static float video_b_qfactor = 1.25;
static float video_b_qoffset = 1.25;
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static float video_i_qfactor = -0.8;
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static float video_i_qoffset = 0.0;
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static int video_intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
static int video_inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
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static int me_method = ME_EPZS;
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static int video_disable = 0;
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static int video_discard = 0;
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static int video_codec_id = CODEC_ID_NONE;
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static int video_codec_tag = 0;
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static int same_quality = 0;
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static int b_frames = 0;
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static int pre_me = 0;
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static int do_deinterlace = 0;
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static int workaround_bugs = FF_BUG_AUTODETECT;
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static int packet_size = 0;
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static int error_rate = 0;
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static int strict = 0;
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static int top_field_first = -1;
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static int sc_threshold = 0;
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static int me_threshold = 0;
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static int mb_threshold = 0;
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static int intra_dc_precision = 8;
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static int me_penalty_compensation= 256;
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static int frame_skip_threshold= 0;
static int frame_skip_factor= 0;
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static int frame_skip_exp= 0;
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static int loop_input = 0;
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static int loop_output = AVFMT_NOOUTPUTLOOP;
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static int qp_hist = 0;
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static int gop_size = 12;
static int intra_only = 0;
static int audio_sample_rate = 44100;
static int audio_bit_rate = 64000;
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#define QSCALE_NONE -99999
static float audio_qscale = QSCALE_NONE;
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static int audio_disable = 0;
static int audio_channels = 1;
static int audio_codec_id = CODEC_ID_NONE;
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static int audio_codec_tag = 0;
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static char *audio_language = NULL;

static int subtitle_codec_id = CODEC_ID_NONE;
static char *subtitle_language = NULL;
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static int mux_rate= 0;
static int mux_packet_size= 0;
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static float mux_preload= 0.5;
static float mux_max_delay= 0.7;
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static int64_t recording_time = 0;
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static int64_t start_time = 0;
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static int64_t rec_timestamp = 0;
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static int64_t input_ts_offset = 0;
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static int file_overwrite = 0;
static char *str_title = NULL;
static char *str_author = NULL;
static char *str_copyright = NULL;
static char *str_comment = NULL;
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static int do_benchmark = 0;
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static int do_hex_dump = 0;
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static int do_pkt_dump = 0;
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static int do_psnr = 0;
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static int do_vstats = 0;
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static int do_pass = 0;
static char *pass_logfilename = NULL;
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static int audio_stream_copy = 0;
static int video_stream_copy = 0;
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static int subtitle_stream_copy = 0;
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static int video_sync_method= 1;
static int audio_sync_method= 0;
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static int copy_ts= 0;
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static int opt_shortest = 0; //
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static int video_global_header = 0;
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static int rate_emu = 0;

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#ifdef CONFIG_BKTR
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static const char *video_grab_format = "bktr";
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#else
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#ifdef CONFIG_VIDEO4LINUX2
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static const char *video_grab_format = "video4linux2";
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#else
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static const char *video_grab_format = "video4linux";
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#endif
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#endif
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static char *video_device = NULL;
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static char *grab_device = NULL;
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static int  video_channel = 0;
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static char *video_standard = "ntsc";
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static const char *audio_grab_format = "audio_device";
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static char *audio_device = NULL;
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static int audio_volume = 256;
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static int using_stdin = 0;
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static int using_vhook = 0;
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static int verbose = 1;
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static int thread_count= 1;
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static int q_pressed = 0;
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static int me_range = 0;
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static int64_t video_size = 0;
static int64_t audio_size = 0;
static int64_t extra_size = 0;
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static int nb_frames_dup = 0;
static int nb_frames_drop = 0;
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static int input_sync;
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static int limit_filesize = 0; //
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static int pgmyuv_compatibility_hack=0;
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static int dts_delta_threshold = 10;
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static int sws_flags = SWS_BICUBIC;

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const char **opt_names=NULL;
int opt_name_count=0;
AVCodecContext *avctx_opts;
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AVFormatContext *avformat_opts;
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static AVBitStreamFilterContext *video_bitstream_filters=NULL;
static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
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#define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
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struct AVInputStream;

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typedef struct AVOutputStream {
    int file_index;          /* file index */
    int index;               /* stream index in the output file */
    int source_index;        /* AVInputStream index */
    AVStream *st;            /* stream in the output file */
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    int encoding_needed;     /* true if encoding needed for this stream */
    int frame_number;
    /* input pts and corresponding output pts
       for A/V sync */
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    //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
    struct AVInputStream *sync_ist; /* input stream to sync against */
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    int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
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    /* video only */
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    int video_resample;
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    AVFrame pict_tmp;      /* temporary image for resampling */
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    struct SwsContext *img_resample_ctx; /* for image resampling */
    int resample_height;
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    int video_crop;
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    int topBand;             /* cropping area sizes */
    int leftBand;
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    int video_pad;
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    int padtop;              /* padding area sizes */
    int padbottom;
    int padleft;
    int padright;
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    /* audio only */
    int audio_resample;
    ReSampleContext *resample; /* for audio resampling */
    FifoBuffer fifo;     /* for compression: one audio fifo per codec */
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    FILE *logfile;
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} AVOutputStream;

typedef struct AVInputStream {
    int file_index;
    int index;
    AVStream *st;
    int discard;             /* true if stream data should be discarded */
    int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
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    int64_t sample_index;      /* current sample */
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    int64_t       start;     /* time when read started */
    unsigned long frame;     /* current frame */
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    int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
                                is not defined */
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    int64_t       pts;       /* current pts */
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    int is_start;            /* is 1 at the start and after a discontinuity */
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} AVInputStream;

typedef struct AVInputFile {
    int eof_reached;      /* true if eof reached */
    int ist_index;        /* index of first stream in ist_table */
    int buffer_size;      /* current total buffer size */
    int buffer_size_max;  /* buffer size at which we consider we can stop
                             buffering */
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    int nb_streams;       /* nb streams we are aware of */
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} AVInputFile;

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#ifndef __MINGW32__
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/* init terminal so that we can grab keys */
static struct termios oldtty;

static void term_exit(void)
{
    tcsetattr (0, TCSANOW, &oldtty);
}

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static volatile sig_atomic_t received_sigterm = 0;

static void
sigterm_handler(int sig)
{
    received_sigterm = sig;
    term_exit();
}

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static void term_init(void)
{
    struct termios tty;

    tcgetattr (0, &tty);
    oldtty = tty;

    tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
                          |INLCR|IGNCR|ICRNL|IXON);
    tty.c_oflag |= OPOST;
    tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
    tty.c_cflag &= ~(CSIZE|PARENB);
    tty.c_cflag |= CS8;
    tty.c_cc[VMIN] = 1;
    tty.c_cc[VTIME] = 0;
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    tcsetattr (0, TCSANOW, &tty);

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    signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
    signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
    signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
    /*
    register a function to be called at normal program termination
    */
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    atexit(term_exit);
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#ifdef CONFIG_BEOS_NETSERVER
    fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
#endif
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}

/* read a key without blocking */
static int read_key(void)
{
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    int n = 1;
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    unsigned char ch;
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#ifndef CONFIG_BEOS_NETSERVER
    struct timeval tv;
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    fd_set rfds;

    FD_ZERO(&rfds);
    FD_SET(0, &rfds);
    tv.tv_sec = 0;
    tv.tv_usec = 0;
    n = select(1, &rfds, NULL, NULL, &tv);
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#endif
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    if (n > 0) {
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        n = read(0, &ch, 1);
        if (n == 1)
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            return ch;
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        return n;
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    }
    return -1;
}

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static int decode_interrupt_cb(void)
{
    return q_pressed || (q_pressed = read_key() == 'q');
}

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#else
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static volatile int received_sigterm = 0;

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/* no interactive support */
static void term_exit(void)
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{
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}
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static void term_init(void)
{
}
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static int read_key(void)
{
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    return 0;
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}

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#endif
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static int read_ffserver_streams(AVFormatContext *s, const char *filename)
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{
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    int i, err;
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    AVFormatContext *ic;

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    err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
    if (err < 0)
        return err;
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    /* copy stream format */
    s->nb_streams = ic->nb_streams;
    for(i=0;i<ic->nb_streams;i++) {
        AVStream *st;
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        // FIXME: a more elegant solution is needed
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        st = av_mallocz(sizeof(AVStream));
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        memcpy(st, ic->streams[i], sizeof(AVStream));
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        st->codec = avcodec_alloc_context();
        memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
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        s->streams[i] = st;
    }

    av_close_input_file(ic);
    return 0;
}

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static double
get_sync_ipts(const AVOutputStream *ost)
{
    const AVInputStream *ist = ost->sync_ist;
    return (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/AV_TIME_BASE;
}

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static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
    while(bsfc){
        AVPacket new_pkt= *pkt;
        int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
                                          &new_pkt.data, &new_pkt.size,
                                          pkt->data, pkt->size,
                                          pkt->flags & PKT_FLAG_KEY);
        if(a){
            av_free_packet(pkt);
            new_pkt.destruct= av_destruct_packet;
        }
        *pkt= new_pkt;

        bsfc= bsfc->next;
    }

    av_interleaved_write_frame(s, pkt);
}

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#define MAX_AUDIO_PACKET_SIZE (128 * 1024)
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static void do_audio_out(AVFormatContext *s,
                         AVOutputStream *ost,
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                         AVInputStream *ist,
                         unsigned char *buf, int size)
{
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    uint8_t *buftmp;
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    static uint8_t *audio_buf = NULL;
    static uint8_t *audio_out = NULL;
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    const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
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    int size_out, frame_bytes, ret;
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    AVCodecContext *enc= ost->st->codec;
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    /* SC: dynamic allocation of buffers */
    if (!audio_buf)
        audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
    if (!audio_out)
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        audio_out = av_malloc(audio_out_size);
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    if (!audio_buf || !audio_out)
        return;               /* Should signal an error ! */

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    if(audio_sync_method){
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        double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
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                - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2);
        double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
        int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
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        //FIXME resample delay
        if(fabs(delta) > 50){
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            if(ist->is_start){
                if(byte_delta < 0){
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                    byte_delta= FFMAX(byte_delta, -size);
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                    size += byte_delta;
                    buf  -= byte_delta;
                    if(verbose > 2)
                        fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
                    if(!size)
                        return;
                    ist->is_start=0;
                }else{
                    static uint8_t *input_tmp= NULL;
                    input_tmp= av_realloc(input_tmp, byte_delta + size);

                    if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
                        ist->is_start=0;
                    else
                        byte_delta= MAX_AUDIO_PACKET_SIZE - size;

                    memset(input_tmp, 0, byte_delta);
                    memcpy(input_tmp + byte_delta, buf, size);
                    buf= input_tmp;
                    size += byte_delta;
                    if(verbose > 2)
                        fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
                }
            }else if(audio_sync_method>1){
                int comp= clip(delta, -audio_sync_method, audio_sync_method);
                assert(ost->audio_resample);
                if(verbose > 2)
                    fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
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//                fprintf(stderr, "drift:%f len:%d opts:%lld ipts:%lld fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2));
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                av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
            }
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        }
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    }else
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        ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
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                        - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2); //FIXME wrong
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    if (ost->audio_resample) {
        buftmp = audio_buf;
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        size_out = audio_resample(ost->resample,
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                                  (short *)buftmp, (short *)buf,
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                                  size / (ist->st->codec->channels * 2));
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        size_out = size_out * enc->channels * 2;
    } else {
        buftmp = buf;
        size_out = size;
    }

    /* now encode as many frames as possible */
556
    if (enc->frame_size > 1) {
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        /* output resampled raw samples */
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        fifo_write(&ost->fifo, buftmp, size_out,
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                   &ost->fifo.wptr);

        frame_bytes = enc->frame_size * 2 * enc->channels;
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        while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
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                     &ost->fifo.rptr) == 0) {
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            AVPacket pkt;
            av_init_packet(&pkt);

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            ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
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                                       (short *)audio_buf);
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            audio_size += ret;
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            pkt.stream_index= ost->index;
            pkt.data= audio_out;
            pkt.size= ret;
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            if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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                pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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            pkt.flags |= PKT_FLAG_KEY;
577
            write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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            ost->sync_opts += enc->frame_size;
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        }
    } else {
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        AVPacket pkt;
        av_init_packet(&pkt);
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        ost->sync_opts += size_out / (2 * enc->channels);
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        /* output a pcm frame */
        /* XXX: change encoding codec API to avoid this ? */
        switch(enc->codec->id) {
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        case CODEC_ID_PCM_S32LE:
        case CODEC_ID_PCM_S32BE:
        case CODEC_ID_PCM_U32LE:
        case CODEC_ID_PCM_U32BE:
            size_out = size_out << 1;
            break;
        case CODEC_ID_PCM_S24LE:
        case CODEC_ID_PCM_S24BE:
        case CODEC_ID_PCM_U24LE:
        case CODEC_ID_PCM_U24BE:
        case CODEC_ID_PCM_S24DAUD:
            size_out = size_out / 2 * 3;
            break;
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        case CODEC_ID_PCM_S16LE:
        case CODEC_ID_PCM_S16BE:
        case CODEC_ID_PCM_U16LE:
        case CODEC_ID_PCM_U16BE:
            break;
        default:
            size_out = size_out >> 1;
            break;
        }
612
        ret = avcodec_encode_audio(enc, audio_out, size_out,
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                                   (short *)buftmp);
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        audio_size += ret;
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        pkt.stream_index= ost->index;
        pkt.data= audio_out;
        pkt.size= ret;
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        if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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            pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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        pkt.flags |= PKT_FLAG_KEY;
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        write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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    }
}

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static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
{
    AVCodecContext *dec;
    AVPicture *picture2;
    AVPicture picture_tmp;
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    uint8_t *buf = 0;
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    dec = ist->st->codec;
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    /* deinterlace : must be done before any resize */
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    if (do_deinterlace || using_vhook) {
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        int size;

        /* create temporary picture */
        size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
        buf = av_malloc(size);
        if (!buf)
            return;
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        picture2 = &picture_tmp;
        avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);

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        if (do_deinterlace){
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            if(avpicture_deinterlace(picture2, picture,
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                                     dec->pix_fmt, dec->width, dec->height) < 0) {
                /* if error, do not deinterlace */
                av_free(buf);
                buf = NULL;
                picture2 = picture;
            }
        } else {
656
            img_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
657
        }
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    } else {
        picture2 = picture;
    }

    frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height);

    if (picture != picture2)
        *picture = *picture2;
    *bufp = buf;
}

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/* we begin to correct av delay at this threshold */
#define AV_DELAY_MAX 0.100
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static void do_subtitle_out(AVFormatContext *s,
                            AVOutputStream *ost,
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                            AVInputStream *ist,
                            AVSubtitle *sub,
                            int64_t pts)
{
    static uint8_t *subtitle_out = NULL;
    int subtitle_out_max_size = 65536;
    int subtitle_out_size, nb, i;
    AVCodecContext *enc;
    AVPacket pkt;

    if (pts == AV_NOPTS_VALUE) {
        fprintf(stderr, "Subtitle packets must have a pts\n");
        return;
    }

689
    enc = ost->st->codec;
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    if (!subtitle_out) {
        subtitle_out = av_malloc(subtitle_out_max_size);
    }

    /* Note: DVB subtitle need one packet to draw them and one other
       packet to clear them */
    /* XXX: signal it in the codec context ? */
    if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
        nb = 2;
    else
        nb = 1;

    for(i = 0; i < nb; i++) {
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        subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
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                                                    subtitle_out_max_size, sub);
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        av_init_packet(&pkt);
        pkt.stream_index = ost->index;
        pkt.data = subtitle_out;
        pkt.size = subtitle_out_size;
        pkt.pts = av_rescale_q(av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q) + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q,  ost->st->time_base);
        if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
            /* XXX: the pts correction is handled here. Maybe handling
               it in the codec would be better */
            if (i == 0)
                pkt.pts += 90 * sub->start_display_time;
            else
                pkt.pts += 90 * sub->end_display_time;
        }
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        write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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    }
}

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static int bit_buffer_size= 1024*256;
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static uint8_t *bit_buffer= NULL;
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static void do_video_out(AVFormatContext *s,
                         AVOutputStream *ost,
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                         AVInputStream *ist,
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                         AVFrame *in_picture,
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                         int *frame_size)
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{
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    int nb_frames, i, ret;
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    AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
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    AVFrame picture_crop_temp, picture_pad_temp;
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    uint8_t *buf = NULL, *buf1 = NULL;
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    AVCodecContext *enc, *dec;
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    avcodec_get_frame_defaults(&picture_crop_temp);
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    avcodec_get_frame_defaults(&picture_pad_temp);
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    enc = ost->st->codec;
    dec = ist->st->codec;
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    /* by default, we output a single frame */
    nb_frames = 1;

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    *frame_size = 0;

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    if(video_sync_method){
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        double vdelta;
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        vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
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        //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
        if (vdelta < -1.1)
            nb_frames = 0;
        else if (vdelta > 1.1)
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            nb_frames = lrintf(vdelta);
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//fprintf(stderr, "vdelta:%f, ost->sync_opts:%lld, ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, ost->sync_ipts, nb_frames);
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        if (nb_frames == 0){
            ++nb_frames_drop;
            if (verbose>2)
                fprintf(stderr, "*** drop!\n");
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        }else if (nb_frames > 1) {
            nb_frames_dup += nb_frames;
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            if (verbose>2)
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                fprintf(stderr, "*** %d dup!\n", nb_frames-1);
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        }
    }else
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        ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
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    nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
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    if (nb_frames <= 0)
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        return;
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    if (ost->video_crop) {
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        if (img_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
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            av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
            goto the_end;
        }
        formatted_picture = &picture_crop_temp;
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    } else {
        formatted_picture = in_picture;
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    }

    final_picture = formatted_picture;
    padding_src = formatted_picture;
    resampling_dst = &ost->pict_tmp;
    if (ost->video_pad) {
        final_picture = &ost->pict_tmp;
        if (ost->video_resample) {
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            if (img_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
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                av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
                goto the_end;
            }
            resampling_dst = &picture_pad_temp;
        }
    }

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    if (ost->video_resample) {
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        padding_src = NULL;
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        final_picture = &ost->pict_tmp;
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        sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
              0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
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    }
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    if (ost->video_pad) {
        img_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
                enc->height, enc->width, enc->pix_fmt,
                ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
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    }
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    /* duplicates frame if needed */
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    for(i=0;i<nb_frames;i++) {
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        AVPacket pkt;
        av_init_packet(&pkt);
        pkt.stream_index= ost->index;

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        if (s->oformat->flags & AVFMT_RAWPICTURE) {
            /* raw pictures are written as AVPicture structure to
               avoid any copies. We support temorarily the older
               method. */
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            AVFrame* old_frame = enc->coded_frame;
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            enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
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            pkt.data= (uint8_t *)final_picture;
            pkt.size=  sizeof(AVPicture);
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            if(dec->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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                pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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            if(dec->coded_frame && dec->coded_frame->key_frame)
                pkt.flags |= PKT_FLAG_KEY;

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            write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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            enc->coded_frame = old_frame;
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        } else {
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            AVFrame big_picture;
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            big_picture= *final_picture;
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            /* better than nothing: use input picture interlaced
               settings */
            big_picture.interlaced_frame = in_picture->interlaced_frame;
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            if(avctx_opts->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
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                if(top_field_first == -1)
                    big_picture.top_field_first = in_picture->top_field_first;
                else
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                    big_picture.top_field_first = top_field_first;
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            }
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            /* handles sameq here. This is not correct because it may
               not be a global option */
            if (same_quality) {
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                big_picture.quality = ist->st->quality;
            }else
                big_picture.quality = ost->st->quality;
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            if(!me_threshold)
                big_picture.pict_type = 0;
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//            big_picture.pts = AV_NOPTS_VALUE;
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            big_picture.pts= ost->sync_opts;
//            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
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//av_log(NULL, AV_LOG_DEBUG, "%lld -> encoder\n", ost->sync_opts);
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            ret = avcodec_encode_video(enc,
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                                       bit_buffer, bit_buffer_size,
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                                       &big_picture);
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            //enc->frame_number = enc->real_pict_num;
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            if(ret>0){
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                pkt.data= bit_buffer;
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                pkt.size= ret;
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                if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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                    pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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/*av_log(NULL, AV_LOG_DEBUG, "encoder -> %lld/%lld\n",
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   pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
   pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
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                if(enc->coded_frame && enc->coded_frame->key_frame)
                    pkt.flags |= PKT_FLAG_KEY;
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                write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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                *frame_size = ret;
                //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
                //        enc->frame_number-1, enc->real_pict_num, ret,
                //        enc->pict_type);
                /* if two pass, output log */
                if (ost->logfile && enc->stats_out) {
                    fprintf(ost->logfile, "%s", enc->stats_out);
                }
883
            }
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        }
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        ost->sync_opts++;
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        ost->frame_number++;
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    }
888
 the_end:
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    av_free(buf);
    av_free(buf1);
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}

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static double psnr(double d){
    if(d==0) return INFINITY;
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    return -10.0*log(d)/log(10.0);
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}

898
static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
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                           int frame_size)
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{
    static FILE *fvstats=NULL;
    char filename[40];
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    time_t today2;
    struct tm *today;
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    AVCodecContext *enc;
    int frame_number;
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    int64_t ti;
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    double ti1, bitrate, avg_bitrate;
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    if (!fvstats) {
        today2 = time(NULL);
        today = localtime(&today2);
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        snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour,
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                                               today->tm_min,
                                               today->tm_sec);
        fvstats = fopen(filename,"w");
        if (!fvstats) {
            perror("fopen");
            exit(1);
        }
    }
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923
    ti = MAXINT64;
924
    enc = ost->st->codec;
925
    if (enc->codec_type == CODEC_TYPE_VIDEO) {
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        frame_number = ost->frame_number;
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        fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
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        if (enc->flags&CODEC_FLAG_PSNR)
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            fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
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        fprintf(fvstats,"f_size= %6d ", frame_size);
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        /* compute pts value */
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        ti1 = ost->sync_opts * av_q2d(enc->time_base);
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        if (ti1 < 0.01)
            ti1 = 0.01;
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        bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
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        avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
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        fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
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            (double)video_size / 1024, ti1, bitrate, avg_bitrate);
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        fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
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    }
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}

945
static void print_report(AVFormatContext **output_files,
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                         AVOutputStream **ost_table, int nb_ostreams,
                         int is_last_report)
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{
    char buf[1024];
    AVOutputStream *ost;
    AVFormatContext *oc, *os;
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    int64_t total_size;
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    AVCodecContext *enc;
    int frame_number, vid, i;
    double bitrate, ti1, pts;
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    static int64_t last_time = -1;
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    static int qp_histogram[52];
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959
    if (!is_last_report) {
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        int64_t cur_time;
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        /* display the report every 0.5 seconds */
        cur_time = av_gettime();
        if (last_time == -1) {
            last_time = cur_time;
            return;
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        }
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        if ((cur_time - last_time) < 500000)
            return;
        last_time = cur_time;
    }

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    oc = output_files[0];

    total_size = url_ftell(&oc->pb);
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    buf[0] = '\0';
    ti1 = 1e10;
    vid = 0;
    for(i=0;i<nb_ostreams;i++) {
        ost = ost_table[i];
        os = output_files[ost->file_index];
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        enc = ost->st->codec;
984
        if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
985
            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
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                    enc->coded_frame->quality/(float)FF_QP2LAMBDA);
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        }
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        if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
            frame_number = ost->frame_number;
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            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d q=%3.1f ",
                    frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
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            if(is_last_report)
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                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
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            if(qp_hist && enc->coded_frame){
                int j;
                int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
                if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
                    qp_histogram[qp]++;
                for(j=0; j<32; j++)
                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
            }
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            if (enc->flags&CODEC_FLAG_PSNR){
                int j;
                double error, error_sum=0;
                double scale, scale_sum=0;
                char type[3]= {'Y','U','V'};
1007
                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
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                for(j=0; j<3; j++){
                    if(is_last_report){
                        error= enc->error[j];
                        scale= enc->width*enc->height*255.0*255.0*frame_number;
                    }else{
                        error= enc->coded_frame->error[j];
                        scale= enc->width*enc->height*255.0*255.0;
                    }
                    if(j) scale/=4;
                    error_sum += error;
                    scale_sum += scale;
1019
                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1020
                }
1021
                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1022
            }
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            vid = 1;
        }
        /* compute min output value */
1026
        pts = (double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den;
1027
        if ((pts < ti1) && (pts > 0))
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            ti1 = pts;
    }
    if (ti1 < 0.01)
        ti1 = 0.01;
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1033 1034
    if (verbose || is_last_report) {
        bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1035 1036

        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1037 1038
            "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
            (double)total_size / 1024, ti1, bitrate);
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        if (verbose > 1)
          snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
                  nb_frames_dup, nb_frames_drop);
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        if (verbose >= 0)
            fprintf(stderr, "%s    \r", buf);

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        fflush(stderr);
    }
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1050 1051
    if (is_last_report && verbose >= 0){
        int64_t raw= audio_size + video_size + extra_size;
1052
        fprintf(stderr, "\n");
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        fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
                video_size/1024.0,
                audio_size/1024.0,
                extra_size/1024.0,
                100.0*(total_size - raw)/raw
        );
    }
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}

1062 1063 1064
/* pkt = NULL means EOF (needed to flush decoder buffers) */
static int output_packet(AVInputStream *ist, int ist_index,
                         AVOutputStream **ost_table, int nb_ostreams,
1065
                         const AVPacket *pkt)
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{
    AVFormatContext *os;
    AVOutputStream *ost;
    uint8_t *ptr;
    int len, ret, i;
    uint8_t *data_buf;
    int data_size, got_picture;
    AVFrame picture;
    void *buffer_to_free;
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    static unsigned int samples_size= 0;
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    static short *samples= NULL;
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    AVSubtitle subtitle, *subtitle_to_free;
    int got_subtitle;
1079

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    if(!pkt){
        ist->pts= ist->next_pts; // needed for last packet if vsync=0
    } else if (pkt->dts != AV_NOPTS_VALUE) { //FIXME seems redundant, as libavformat does this too
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        ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1084
    } else {
1085
//        assert(ist->pts == ist->next_pts);
1086
    }
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    if (pkt == NULL) {
        /* EOF handling */
        ptr = NULL;
        len = 0;
        goto handle_eof;
    }

    len = pkt->size;
    ptr = pkt->data;
    while (len > 0) {
    handle_eof:
        /* decode the packet if needed */
        data_buf = NULL; /* fail safe */
        data_size = 0;
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        subtitle_to_free = NULL;
1103
        if (ist->decoding_needed) {
1104
            switch(ist->st->codec->codec_type) {
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            case CODEC_TYPE_AUDIO:{
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                if(pkt)
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                    samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size, AVCODEC_MAX_AUDIO_FRAME_SIZE));
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                    /* XXX: could avoid copy if PCM 16 bits with same
                       endianness as CPU */
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                ret = avcodec_decode_audio(ist->st->codec, samples, &data_size,
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                                           ptr, len);
                if (ret < 0)
                    goto fail_decode;
                ptr += ret;
                len -= ret;
                /* Some bug in mpeg audio decoder gives */
                /* data_size < 0, it seems they are overflows */
                if (data_size <= 0) {
                    /* no audio frame */
                    continue;
                }
                data_buf = (uint8_t *)samples;
1123
                ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
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                    (ist->st->codec->sample_rate * ist->st->codec->channels);
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                break;}
1126
            case CODEC_TYPE_VIDEO:
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                    data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
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                    /* XXX: allocate picture correctly */
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                    avcodec_get_frame_defaults(&picture);

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                    ret = avcodec_decode_video(ist->st->codec,
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                                               &picture, &got_picture, ptr, len);
                    ist->st->quality= picture.quality;
1134
                    if (ret < 0)
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                        goto fail_decode;
                    if (!got_picture) {
                        /* no picture yet */
                        goto discard_packet;
                    }
1140
                    if (ist->st->codec->time_base.num != 0) {
1141
                        ist->next_pts += ((int64_t)AV_TIME_BASE *
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                                          ist->st->codec->time_base.num) /
                            ist->st->codec->time_base.den;
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                    }
                    len = 0;
                    break;
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            case CODEC_TYPE_SUBTITLE:
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                ret = avcodec_decode_subtitle(ist->st->codec,
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                                              &subtitle, &got_subtitle, ptr, len);
                if (ret < 0)
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                    goto fail_decode;
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                if (!got_subtitle) {
                    goto discard_packet;
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                }
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                subtitle_to_free = &subtitle;
                len = 0;
                break;
            default:
                goto fail_decode;
            }
        } else {
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                switch(ist->st->codec->codec_type) {
1163
                case CODEC_TYPE_AUDIO:
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                    ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
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                        (ist->st->codec->sample_rate * ist->st->codec->channels);
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                    break;
                case CODEC_TYPE_VIDEO:
1168
                    if (ist->st->codec->time_base.num != 0) {
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                        ist->next_pts += ((int64_t)AV_TIME_BASE *
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                                          ist->st->codec->time_base.num) /
                            ist->st->codec->time_base.den;
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                    }
                    break;
                }
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                data_buf = ptr;
                data_size = len;
                ret = len;
                len = 0;
            }

            buffer_to_free = NULL;
1182
            if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
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                pre_process_video_frame(ist, (AVPicture *)&picture,
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                                        &buffer_to_free);
            }

1187
            // preprocess audio (volume)
1188
            if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1189
                if (audio_volume != 256) {
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                    short *volp;
                    volp = samples;
                    for(i=0;i<(data_size / sizeof(short));i++) {
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                        int v = ((*volp) * audio_volume + 128) >> 8;
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                        if (v < -32768) v = -32768;
                        if (v >  32767) v = 32767;
                        *volp++ = v;
                    }
                }
            }

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            /* frame rate emulation */
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            if (ist->st->codec->rate_emu) {
                int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
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                int64_t now = av_gettime() - ist->start;
                if (pts > now)
                    usleep(pts - now);

                ist->frame++;
            }

#if 0
            /* mpeg PTS deordering : if it is a P or I frame, the PTS
               is the one of the next displayed one */
            /* XXX: add mpeg4 too ? */
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            if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
                if (ist->st->codec->pict_type != B_TYPE) {
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                    int64_t tmp;
                    tmp = ist->last_ip_pts;
                    ist->last_ip_pts  = ist->frac_pts.val;
                    ist->frac_pts.val = tmp;
                }
            }
#endif
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            /* if output time reached then transcode raw format,
1225
               encode packets and output them */
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            if (start_time == 0 || ist->pts >= start_time)
                for(i=0;i<nb_ostreams;i++) {
                    int frame_size;

                    ost = ost_table[i];
                    if (ost->source_index == ist_index) {
                        os = output_files[ost->file_index];

#if 0
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                        printf("%d: got pts=%0.3f %0.3f\n", i,
                               (double)pkt->pts / AV_TIME_BASE,
                               ((double)ist->pts / AV_TIME_BASE) -
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                               ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
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#endif
                        /* set the input output pts pairs */
1241
                        //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1242 1243

                        if (ost->encoding_needed) {
1244
                            switch(ost->st->codec->codec_type) {
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                            case CODEC_TYPE_AUDIO:
                                do_audio_out(os, ost, ist, data_buf, data_size);
                                break;
                            case CODEC_TYPE_VIDEO:
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                                    do_video_out(os, ost, ist, &picture, &frame_size);
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                                    video_size += frame_size;
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                                    if (do_vstats && frame_size)
                                        do_video_stats(os, ost, frame_size);
                                break;
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                            case CODEC_TYPE_SUBTITLE:
                                do_subtitle_out(os, ost, ist, &subtitle,
                                                pkt->pts);
                                break;
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                            default:
                                av_abort();
                            }
                        } else {
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                            AVFrame avframe; //FIXME/XXX remove this
                            AVPacket opkt;
                            av_init_packet(&opkt);

1266 1267
                            /* no reencoding needed : output the packet directly */
                            /* force the input stream PTS */
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1269
                            avcodec_get_frame_defaults(&avframe);
1270
                            ost->st->codec->coded_frame= &avframe;
1271
                            avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
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1273
                            if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
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1274
                                audio_size += data_size;
1275
                            else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
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                                video_size += data_size;
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                                ost->sync_opts++;
                            }
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1280
                            opkt.stream_index= ost->index;
1281
                            if(pkt->pts != AV_NOPTS_VALUE)
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                                opkt.pts= av_rescale_q(av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q) + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q,  ost->st->time_base);
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                            else
                                opkt.pts= AV_NOPTS_VALUE;
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                            {
                                int64_t dts;
                                if (pkt->dts == AV_NOPTS_VALUE)
                                    dts = ist->next_pts;
                                else
                                    dts= av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
                                opkt.dts= av_rescale_q(dts + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q,  ost->st->time_base);
                            }
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                            opkt.flags= pkt->flags;
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                            //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1297
                            if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1298
                                opkt.destruct= av_destruct_packet;
1299 1300

                            write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][pkt->stream_index]);
1301
                            ost->st->codec->frame_number++;
1302
                            ost->frame_number++;
1303
                            av_free_packet(&opkt);
1304 1305 1306 1307
                        }
                    }
                }
            av_free(buffer_to_free);
1308 1309
            /* XXX: allocate the subtitles in the codec ? */
            if (subtitle_to_free) {
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                if (subtitle_to_free->rects != NULL) {
                    for (i = 0; i < subtitle_to_free->num_rects; i++) {
                        av_free(subtitle_to_free->rects[i].bitmap);
                        av_free(subtitle_to_free->rects[i].rgba_palette);
                    }
                    av_freep(&subtitle_to_free->rects);
                }
                subtitle_to_free->num_rects = 0;
1318 1319
                subtitle_to_free = NULL;
            }
1320 1321
        }
 discard_packet:
1322 1323
    if (pkt == NULL) {
        /* EOF handling */
1324

1325 1326 1327
        for(i=0;i<nb_ostreams;i++) {
            ost = ost_table[i];
            if (ost->source_index == ist_index) {
1328
                AVCodecContext *enc= ost->st->codec;
1329
                os = output_files[ost->file_index];
1330

1331
                if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1332
                    continue;
1333
                if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1334 1335 1336 1337 1338
                    continue;

                if (ost->encoding_needed) {
                    for(;;) {
                        AVPacket pkt;
1339
                        int fifo_bytes;
1340 1341
                        av_init_packet(&pkt);
                        pkt.stream_index= ost->index;
1342

1343
                        switch(ost->st->codec->codec_type) {
1344
                        case CODEC_TYPE_AUDIO:
1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355
                            fifo_bytes = fifo_size(&ost->fifo, NULL);
                            ret = 0;
                            /* encode any samples remaining in fifo */
                            if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
                                int fs_tmp = enc->frame_size;
                                enc->frame_size = fifo_bytes / (2 * enc->channels);
                                if(fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes,
                                        &ost->fifo.rptr) == 0) {
                                    ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
                                }
                                enc->frame_size = fs_tmp;
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                            }
                            if(ret <= 0) {
1358 1359
                                ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
                            }
1360 1361 1362 1363
                            audio_size += ret;
                            pkt.flags |= PKT_FLAG_KEY;
                            break;
                        case CODEC_TYPE_VIDEO:
1364
                            ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
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                            video_size += ret;
                            if(enc->coded_frame && enc->coded_frame->key_frame)
                                pkt.flags |= PKT_FLAG_KEY;
                            if (ost->logfile && enc->stats_out) {
                                fprintf(ost->logfile, "%s", enc->stats_out);
                            }
                            break;
                        default:
                            ret=-1;
                        }
1375

1376 1377
                        if(ret<=0)
                            break;
1378
                        pkt.data= bit_buffer;
1379
                        pkt.size= ret;
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1380
                        if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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                            pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1382
                        write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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                    }
                }
            }
        }
    }
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    return 0;
 fail_decode:
    return -1;
}


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/*
 * The following code is the main loop of the file converter
 */
static int av_encode(AVFormatContext **output_files,
                     int nb_output_files,
                     AVFormatContext **input_files,
                     int nb_input_files,
                     AVStreamMap *stream_maps, int nb_stream_maps)
{
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    int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
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    AVFormatContext *is, *os;
    AVCodecContext *codec, *icodec;
    AVOutputStream *ost, **ost_table = NULL;
    AVInputStream *ist, **ist_table = NULL;
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    AVInputFile *file_table;
1410
    AVFormatContext *stream_no_data;
1411
    int key;
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1413
    file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
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    if (!file_table)
        goto fail;
1416

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    /* input stream init */
    j = 0;
    for(i=0;i<nb_input_files;i++) {
        is = input_files[i];
        file_table[i].ist_index = j;
1422
        file_table[i].nb_streams = is->nb_streams;
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        j += is->nb_streams;
    }
    nb_istreams = j;

    ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
    if (!ist_table)
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        goto fail;
1430

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    for(i=0;i<nb_istreams;i++) {
        ist = av_mallocz(sizeof(AVInputStream));
        if (!ist)
            goto fail;
        ist_table[i] = ist;
    }
    j = 0;
    for(i=0;i<nb_input_files;i++) {
        is = input_files[i];
        for(k=0;k<is->nb_streams;k++) {
            ist = ist_table[j++];
            ist->st = is->streams[k];
            ist->file_index = i;
            ist->index = k;
            ist->discard = 1; /* the stream is discarded by default
                                 (changed later) */
1447

1448
            if (ist->st->codec->rate_emu) {
1449 1450 1451
                ist->start = av_gettime();
                ist->frame = 0;
            }
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        }
    }

    /* output stream init */
    nb_ostreams = 0;
    for(i=0;i<nb_output_files;i++) {
        os = output_files[i];
        nb_ostreams += os->nb_streams;
    }
    if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
        fprintf(stderr, "Number of stream maps must match number of output streams\n");
        exit(1);
    }

1466 1467 1468 1469
    /* Sanity check the mapping args -- do the input files & streams exist? */
    for(i=0;i<nb_stream_maps;i++) {
        int fi = stream_maps[i].file_index;
        int si = stream_maps[i].stream_index;
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1471 1472 1473 1474 1475
        if (fi < 0 || fi > nb_input_files - 1 ||
            si < 0 || si > file_table[fi].nb_streams - 1) {
            fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
            exit(1);
        }
1476 1477 1478 1479 1480 1481 1482
        fi = stream_maps[i].sync_file_index;
        si = stream_maps[i].sync_stream_index;
        if (fi < 0 || fi > nb_input_files - 1 ||
            si < 0 || si > file_table[fi].nb_streams - 1) {
            fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
            exit(1);
        }
1483
    }
1484

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    ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
    if (!ost_table)
        goto fail;
    for(i=0;i<nb_ostreams;i++) {
        ost = av_mallocz(sizeof(AVOutputStream));
        if (!ost)
            goto fail;
        ost_table[i] = ost;
    }
1494

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    n = 0;
    for(k=0;k<nb_output_files;k++) {
        os = output_files[k];
        for(i=0;i<os->nb_streams;i++) {
            int found;
            ost = ost_table[n++];
            ost->file_index = k;
            ost->index = i;
            ost->st = os->streams[i];
            if (nb_stream_maps > 0) {
1505
                ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
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                    stream_maps[n-1].stream_index;
1507

1508
                /* Sanity check that the stream types match */
1509
                if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1510 1511 1512 1513 1514
                    fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
                        stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
                        ost->file_index, ost->index);
                    exit(1);
                }
1515

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1516 1517 1518 1519 1520
            } else {
                /* get corresponding input stream index : we select the first one with the right type */
                found = 0;
                for(j=0;j<nb_istreams;j++) {
                    ist = ist_table[j];
1521
                    if (ist->discard &&
1522
                        ist->st->codec->codec_type == ost->st->codec->codec_type) {
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                        ost->source_index = j;
                        found = 1;
1525
                        break;
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                    }
                }
1528

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                if (!found) {
                    /* try again and reuse existing stream */
                    for(j=0;j<nb_istreams;j++) {
                        ist = ist_table[j];
1533
                        if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
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1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546
                            ost->source_index = j;
                            found = 1;
                        }
                    }
                    if (!found) {
                        fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
                                ost->file_index, ost->index);
                        exit(1);
                    }
                }
            }
            ist = ist_table[ost->source_index];
            ist->discard = 0;
1547 1548 1549
            ost->sync_ist = (nb_stream_maps > 0) ?
                ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
                         stream_maps[n-1].sync_stream_index] : ist;
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        }
    }

    /* for each output stream, we compute the right encoding parameters */
    for(i=0;i<nb_ostreams;i++) {
        ost = ost_table[i];
        ist = ist_table[ost->source_index];

1558 1559
        codec = ost->st->codec;
        icodec = ist->st->codec;
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1560

1561 1562 1563 1564
        if (ost->st->stream_copy) {
            /* if stream_copy is selected, no need to decode or encode */
            codec->codec_id = icodec->codec_id;
            codec->codec_type = icodec->codec_type;
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            if(!codec->codec_tag) codec->codec_tag = icodec->codec_tag;
1566
            codec->bit_rate = icodec->bit_rate;
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            codec->extradata= icodec->extradata;
            codec->extradata_size= icodec->extradata_size;
1569
            codec->time_base = icodec->time_base;
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            switch(codec->codec_type) {
            case CODEC_TYPE_AUDIO:
                codec->sample_rate = icodec->sample_rate;
                codec->channels = icodec->channels;
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                codec->frame_size = icodec->frame_size;
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                codec->block_align= icodec->block_align;
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                break;
            case CODEC_TYPE_VIDEO:
1578
                codec->pix_fmt = icodec->pix_fmt;
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                codec->width = icodec->width;
                codec->height = icodec->height;
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                codec->has_b_frames = icodec->has_b_frames;
1582
                break;
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            case CODEC_TYPE_SUBTITLE:
                break;
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            default:
                av_abort();
            }
        } else {
            switch(codec->codec_type) {
            case CODEC_TYPE_AUDIO:
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1591 1592
                if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
                    goto fail;
1593

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                if (codec->channels == icodec->channels &&
                    codec->sample_rate == icodec->sample_rate) {
                    ost->audio_resample = 0;
                } else {
1598
                    if (codec->channels != icodec->channels &&
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                        (icodec->codec_id == CODEC_ID_AC3 ||
                         icodec->codec_id == CODEC_ID_DTS)) {
                        /* Special case for 5:1 AC3 and DTS input */
1602
                        /* and mono or stereo output      */
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                        /* Request specific number of channels */
                        icodec->channels = codec->channels;
                        if (codec->sample_rate == icodec->sample_rate)
                            ost->audio_resample = 0;
                        else {
                            ost->audio_resample = 1;
                        }
1610
                    } else {
1611
                        ost->audio_resample = 1;
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                    }
                }
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                if(audio_sync_method>1)
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                    ost->audio_resample = 1;

                if(ost->audio_resample){
                    ost->resample = audio_resample_init(codec->channels, icodec->channels,
                                                    codec->sample_rate, icodec->sample_rate);
                    if(!ost->resample){
                        printf("Can't resample.  Aborting.\n");
                        av_abort();
1623
                    }
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                }
                ist->decoding_needed = 1;
                ost->encoding_needed = 1;
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                break;
            case CODEC_TYPE_VIDEO:
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                ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
                ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
                ost->video_resample = ((codec->width != icodec->width -
                                (frame_leftBand + frame_rightBand) +
                                (frame_padleft + frame_padright)) ||
                        (codec->height != icodec->height -
                                (frame_topBand  + frame_bottomBand) +
1636 1637
                                (frame_padtop + frame_padbottom)) ||
                        (codec->pix_fmt != icodec->pix_fmt));
1638
                if (ost->video_crop) {
1639 1640
                    ost->topBand = frame_topBand;
                    ost->leftBand = frame_leftBand;
1641 1642
                }
                if (ost->video_pad) {
1643 1644 1645 1646
                    ost->padtop = frame_padtop;
                    ost->padleft = frame_padleft;
                    ost->padbottom = frame_padbottom;
                    ost->padright = frame_padright;
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                    if (!ost->video_resample) {
                        avcodec_get_frame_defaults(&ost->pict_tmp);
                        if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
                                         codec->width, codec->height ) )
                            goto fail;
                    }
                }
                if (ost->video_resample) {
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                    avcodec_get_frame_defaults(&ost->pict_tmp);
1656
                    if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1657
                                         codec->width, codec->height ) )
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1658 1659
                        goto fail;

1660 1661 1662 1663
                    ost->img_resample_ctx = sws_getContext(
                            icodec->width - (frame_leftBand + frame_rightBand),
                            icodec->height - (frame_topBand + frame_bottomBand),
                            icodec->pix_fmt,
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                            codec->width - (frame_padleft + frame_padright),
                            codec->height - (frame_padtop + frame_padbottom),
1666 1667
                            codec->pix_fmt,
                            sws_flags, NULL, NULL, NULL);
1668 1669 1670 1671
                    if (ost->img_resample_ctx == NULL) {
                        fprintf(stderr, "Cannot get resampling context\n");
                        exit(1);
                    }
1672
                    ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
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                }
                ost->encoding_needed = 1;
                ist->decoding_needed = 1;
1676
                break;
1677 1678 1679 1680
            case CODEC_TYPE_SUBTITLE:
                ost->encoding_needed = 1;
                ist->decoding_needed = 1;
                break;
1681 1682
            default:
                av_abort();
1683
                break;
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1684
            }
1685
            /* two pass mode */
1686
            if (ost->encoding_needed &&
1687 1688 1689 1690 1691
                (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
                char logfilename[1024];
                FILE *f;
                int size;
                char *logbuffer;
1692 1693 1694

                snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
                         pass_logfilename ?
1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717
                         pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
                if (codec->flags & CODEC_FLAG_PASS1) {
                    f = fopen(logfilename, "w");
                    if (!f) {
                        perror(logfilename);
                        exit(1);
                    }
                    ost->logfile = f;
                } else {
                    /* read the log file */
                    f = fopen(logfilename, "r");
                    if (!f) {
                        perror(logfilename);
                        exit(1);
                    }
                    fseek(f, 0, SEEK_END);
                    size = ftell(f);
                    fseek(f, 0, SEEK_SET);
                    logbuffer = av_malloc(size + 1);
                    if (!logbuffer) {
                        fprintf(stderr, "Could not allocate log buffer\n");
                        exit(1);
                    }
1718
                    size = fread(logbuffer, 1, size, f);
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                    fclose(f);
                    logbuffer[size] = '\0';
                    codec->stats_in = logbuffer;
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                }
            }
        }
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        if(codec->codec_type == CODEC_TYPE_VIDEO){
            int size= codec->width * codec->height;
            bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
        }
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    }

1731 1732 1733 1734 1735
    if (!bit_buffer)
        bit_buffer = av_malloc(bit_buffer_size);
    if (!bit_buffer)
        goto fail;

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    /* dump the file output parameters - cannot be done before in case
       of stream copy */
    for(i=0;i<nb_output_files;i++) {
        dump_format(output_files[i], i, output_files[i]->filename, 1);
    }

    /* dump the stream mapping */
1743 1744 1745 1746
    if (verbose >= 0) {
        fprintf(stderr, "Stream mapping:\n");
        for(i=0;i<nb_ostreams;i++) {
            ost = ost_table[i];
1747
            fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
1748 1749
                    ist_table[ost->source_index]->file_index,
                    ist_table[ost->source_index]->index,
1750
                    ost->file_index,
1751
                    ost->index);
1752 1753 1754 1755 1756
            if (ost->sync_ist != ist_table[ost->source_index])
                fprintf(stderr, " [sync #%d.%d]",
                        ost->sync_ist->file_index,
                        ost->sync_ist->index);
            fprintf(stderr, "\n");
1757
        }
1758 1759
    }

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1760 1761 1762 1763 1764
    /* open each encoder */
    for(i=0;i<nb_ostreams;i++) {
        ost = ost_table[i];
        if (ost->encoding_needed) {
            AVCodec *codec;
1765
            codec = avcodec_find_encoder(ost->st->codec->codec_id);
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1766
            if (!codec) {
1767
                fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
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1768 1769 1770
                        ost->file_index, ost->index);
                exit(1);
            }
1771
            if (avcodec_open(ost->st->codec, codec) < 0) {
1772
                fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
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1773 1774 1775
                        ost->file_index, ost->index);
                exit(1);
            }
1776
            extra_size += ost->st->codec->extradata_size;
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1777 1778 1779 1780 1781 1782 1783 1784
        }
    }

    /* open each decoder */
    for(i=0;i<nb_istreams;i++) {
        ist = ist_table[i];
        if (ist->decoding_needed) {
            AVCodec *codec;
1785
            codec = avcodec_find_decoder(ist->st->codec->codec_id);
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1786
            if (!codec) {
1787
                fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1788
                        ist->st->codec->codec_id, ist->file_index, ist->index);
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1789 1790
                exit(1);
            }
1791
            if (avcodec_open(ist->st->codec, codec) < 0) {
1792
                fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
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1793 1794 1795
                        ist->file_index, ist->index);
                exit(1);
            }
1796 1797
            //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
            //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
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1798 1799 1800 1801 1802 1803
        }
    }

    /* init pts */
    for(i=0;i<nb_istreams;i++) {
        ist = ist_table[i];
1804
        is = input_files[ist->file_index];
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        ist->pts = 0;
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1806
        ist->next_pts = av_rescale_q(ist->st->start_time, ist->st->time_base, AV_TIME_BASE_Q);
1807
        if(ist->st->start_time == AV_NOPTS_VALUE)
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1808
            ist->next_pts=0;
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        if(input_files_ts_offset[ist->file_index])
            ist->next_pts= AV_NOPTS_VALUE;
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1811
        ist->is_start = 1;
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1812
    }
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1813

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    /* compute buffer size max (should use a complete heuristic) */
    for(i=0;i<nb_input_files;i++) {
        file_table[i].buffer_size_max = 2048;
    }

1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834
    /* set meta data information from input file if required */
    for (i=0;i<nb_meta_data_maps;i++) {
        AVFormatContext *out_file;
        AVFormatContext *in_file;

        int out_file_index = meta_data_maps[i].out_file;
        int in_file_index = meta_data_maps[i].in_file;
        if ( out_file_index < 0 || out_file_index >= nb_output_files ) {
            fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
            ret = -EINVAL;
            goto fail;
        }
        if ( in_file_index < 0 || in_file_index >= nb_input_files ) {
            fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
            ret = -EINVAL;
            goto fail;
1835 1836
        }

1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848
        out_file = output_files[out_file_index];
        in_file = input_files[in_file_index];

        strcpy(out_file->title, in_file->title);
        strcpy(out_file->author, in_file->author);
        strcpy(out_file->copyright, in_file->copyright);
        strcpy(out_file->comment, in_file->comment);
        strcpy(out_file->album, in_file->album);
        out_file->year = in_file->year;
        out_file->track = in_file->track;
        strcpy(out_file->genre, in_file->genre);
    }
1849

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1850 1851 1852
    /* open files and write file headers */
    for(i=0;i<nb_output_files;i++) {
        os = output_files[i];
1853
        if (av_write_header(os) < 0) {
1854
            fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1855 1856 1857
            ret = -EINVAL;
            goto fail;
        }
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1858 1859
    }

1860
#ifndef __MINGW32__
1861
    if ( !using_stdin && verbose >= 0) {
1862
        fprintf(stderr, "Press [q] to stop encoding\n");
1863 1864
        url_set_interrupt_cb(decode_interrupt_cb);
    }
1865 1866 1867
#endif
    term_init();

1868
    stream_no_data = 0;
1869
    key = -1;
1870

1871
    for(; received_sigterm == 0;) {
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1872 1873
        int file_index, ist_index;
        AVPacket pkt;
1874 1875
        double ipts_min;
        double opts_min;
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1876

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1877
    redo:
1878 1879
        ipts_min= 1e100;
        opts_min= 1e100;
1880
        /* if 'q' pressed, exits */
1881
        if (!using_stdin) {
1882 1883
            if (q_pressed)
                break;
1884 1885 1886 1887 1888
            /* read_key() returns 0 on EOF */
            key = read_key();
            if (key == 'q')
                break;
        }
1889

1890 1891
        /* select the stream that we must read now by looking at the
           smallest output pts */
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1892
        file_index = -1;
1893
        for(i=0;i<nb_ostreams;i++) {
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            double ipts, opts;
1895 1896 1897
            ost = ost_table[i];
            os = output_files[ost->file_index];
            ist = ist_table[ost->source_index];
1898 1899
            if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
                opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
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1900
            else
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1901
                opts = ost->st->pts.val * av_q2d(ost->st->time_base);
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1902 1903 1904 1905 1906 1907 1908 1909 1910 1911
            ipts = (double)ist->pts;
            if (!file_table[ist->file_index].eof_reached){
                if(ipts < ipts_min) {
                    ipts_min = ipts;
                    if(input_sync ) file_index = ist->file_index;
                }
                if(opts < opts_min) {
                    opts_min = opts;
                    if(!input_sync) file_index = ist->file_index;
                }
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1912
            }
1913
            if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
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                file_index= -1;
                break;
            }
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1917 1918
        }
        /* if none, if is finished */
1919
        if (file_index < 0) {
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1920
            break;
1921 1922
        }

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1923
        /* finish if recording time exhausted */
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1924
        if (recording_time > 0 && opts_min >= (recording_time / 1000000.0))
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1925
            break;
1926

1927 1928 1929 1930
        /* finish if limit size exhausted */
        if (limit_filesize != 0 && (limit_filesize * 1024) < url_ftell(&output_files[0]->pb))
            break;

1931
        /* read a frame from it and output it in the fifo */
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1932
        is = input_files[file_index];
1933
        if (av_read_frame(is, &pkt) < 0) {
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1934
            file_table[file_index].eof_reached = 1;
1935
            if (opt_shortest) break; else continue; //
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        }
1937

1938 1939 1940 1941 1942
        if (!pkt.size) {
            stream_no_data = is;
        } else {
            stream_no_data = 0;
        }
1943 1944
        if (do_pkt_dump) {
            av_pkt_dump(stdout, &pkt, do_hex_dump);
1945
        }
1946 1947 1948
        /* the following test is needed in case new streams appear
           dynamically in stream : we ignore them */
        if (pkt.stream_index >= file_table[file_index].nb_streams)
1949
            goto discard_packet;
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1950 1951
        ist_index = file_table[file_index].ist_index + pkt.stream_index;
        ist = ist_table[ist_index];
1952 1953
        if (ist->discard)
            goto discard_packet;
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1954

1955
//        fprintf(stderr, "next:%lld dts:%lld off:%lld %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
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1956
        if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
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1957
            int64_t delta= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q) - ist->next_pts;
1958
            if(ABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE && !copy_ts){
1959 1960
                input_files_ts_offset[ist->file_index]-= delta;
                if (verbose > 2)
1961
                    fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
1962 1963 1964
                for(i=0; i<file_table[file_index].nb_streams; i++){
                    int index= file_table[file_index].ist_index + i;
                    ist_table[index]->next_pts += delta;
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                    ist_table[index]->is_start=1;
1966 1967 1968 1969
                }
            }
        }

1970
        //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1971
        if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
1972 1973 1974 1975 1976

            if (verbose >= 0)
                fprintf(stderr, "Error while decoding stream #%d.%d\n",
                        ist->file_index, ist->index);

1977 1978
            av_free_packet(&pkt);
            goto redo;
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        }
1980

1981
    discard_packet:
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1982
        av_free_packet(&pkt);
1983

1984 1985
        /* dump report by using the output first video and audio streams */
        print_report(output_files, ost_table, nb_ostreams, 0);
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1986
    }
1987 1988 1989 1990 1991 1992 1993 1994 1995

    /* at the end of stream, we must flush the decoder buffers */
    for(i=0;i<nb_istreams;i++) {
        ist = ist_table[i];
        if (ist->decoding_needed) {
            output_packet(ist, i, ost_table, nb_ostreams, NULL);
        }
    }

1996
    term_exit();
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1997

1998 1999 2000 2001 2002 2003
    /* write the trailer if needed and close file */
    for(i=0;i<nb_output_files;i++) {
        os = output_files[i];
        av_write_trailer(os);
    }

2004 2005 2006
    /* dump report by using the first video and audio streams */
    print_report(output_files, ost_table, nb_ostreams, 1);

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2007 2008 2009 2010
    /* close each encoder */
    for(i=0;i<nb_ostreams;i++) {
        ost = ost_table[i];
        if (ost->encoding_needed) {
2011 2012
            av_freep(&ost->st->codec->stats_in);
            avcodec_close(ost->st->codec);
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2013 2014
        }
    }
2015

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2016 2017 2018 2019
    /* close each decoder */
    for(i=0;i<nb_istreams;i++) {
        ist = ist_table[i];
        if (ist->decoding_needed) {
2020
            avcodec_close(ist->st->codec);
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2021 2022 2023 2024
        }
    }

    /* finished ! */
2025

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2026 2027
    ret = 0;
 fail1:
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2028
    av_freep(&bit_buffer);
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2029
    av_free(file_table);
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2030

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2031 2032 2033
    if (ist_table) {
        for(i=0;i<nb_istreams;i++) {
            ist = ist_table[i];
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2034
            av_free(ist);
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2035
        }
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2036
        av_free(ist_table);
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2037 2038 2039 2040 2041
    }
    if (ost_table) {
        for(i=0;i<nb_ostreams;i++) {
            ost = ost_table[i];
            if (ost) {
2042 2043 2044 2045
                if (ost->logfile) {
                    fclose(ost->logfile);
                    ost->logfile = NULL;
                }
2046 2047
                fifo_free(&ost->fifo); /* works even if fifo is not
                                          initialized but set to zero */
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2048
                av_free(ost->pict_tmp.data[0]);
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2049
                if (ost->video_resample)
2050
                    sws_freeContext(ost->img_resample_ctx);
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2051 2052
                if (ost->audio_resample)
                    audio_resample_close(ost->resample);
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2053
                av_free(ost);
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2054 2055
            }
        }
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2056
        av_free(ost_table);
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2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085
    }
    return ret;
 fail:
    ret = -ENOMEM;
    goto fail1;
}

#if 0
int file_read(const char *filename)
{
    URLContext *h;
    unsigned char buffer[1024];
    int len, i;

    if (url_open(&h, filename, O_RDONLY) < 0) {
        printf("could not open '%s'\n", filename);
        return -1;
    }
    for(;;) {
        len = url_read(h, buffer, sizeof(buffer));
        if (len <= 0)
            break;
        for(i=0;i<len;i++) putchar(buffer[i]);
    }
    url_close(h);
    return 0;
}
#endif

2086
static void opt_image_format(const char *arg)
2087 2088
{
    AVImageFormat *f;
2089

2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
    for(f = first_image_format; f != NULL; f = f->next) {
        if (!strcmp(arg, f->name))
            break;
    }
    if (!f) {
        fprintf(stderr, "Unknown image format: '%s'\n", arg);
        exit(1);
    }
    image_format = f;
}

2101
static void opt_format(const char *arg)
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2102
{
2103 2104
    /* compatibility stuff for pgmyuv */
    if (!strcmp(arg, "pgmyuv")) {
2105
        pgmyuv_compatibility_hack=1;
2106
//        opt_image_format(arg);
2107
        arg = "image2";
2108 2109
    }

2110 2111 2112 2113
    file_iformat = av_find_input_format(arg);
    file_oformat = guess_format(arg, NULL, NULL);
    if (!file_iformat && !file_oformat) {
        fprintf(stderr, "Unknown input or output format: %s\n", arg);
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2114 2115 2116 2117
        exit(1);
    }
}

2118
static void opt_video_bitrate(const char *arg)
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2119 2120 2121 2122
{
    video_bit_rate = atoi(arg) * 1000;
}

2123
static void opt_video_bitrate_tolerance(const char *arg)
2124 2125 2126 2127
{
    video_bit_rate_tolerance = atoi(arg) * 1000;
}

2128
static void opt_video_bitrate_max(const char *arg)
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2129 2130 2131 2132
{
    video_rc_max_rate = atoi(arg) * 1000;
}

2133
static void opt_video_bitrate_min(const char *arg)
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2134 2135 2136 2137
{
    video_rc_min_rate = atoi(arg) * 1000;
}

2138
static void opt_video_buffer_size(const char *arg)
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2139
{
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2140
    video_rc_buffer_size = atoi(arg) * 8*1024;
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2141 2142
}

2143
static void opt_video_rc_eq(char *arg)
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2144 2145 2146 2147
{
    video_rc_eq = arg;
}

2148
static void opt_video_rc_override_string(char *arg)
2149 2150 2151 2152
{
    video_rc_override_string = arg;
}

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2153

2154
static void opt_workaround_bugs(const char *arg)
2155 2156 2157 2158
{
    workaround_bugs = atoi(arg);
}

2159 2160 2161 2162 2163
static void opt_me_threshold(const char *arg)
{
    me_threshold = atoi(arg);
}

2164 2165 2166 2167
static void opt_mb_threshold(const char *arg)
{
    mb_threshold = atoi(arg);
}
2168

2169 2170 2171
static void opt_verbose(const char *arg)
{
    verbose = atoi(arg);
2172
    av_log_set_level(atoi(arg));
2173 2174
}

2175
static void opt_frame_rate(const char *arg)
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2176
{
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2177 2178
    if (parse_frame_rate(&frame_rate, &frame_rate_base, arg) < 0) {
        fprintf(stderr, "Incorrect frame rate\n");
2179
        exit(1);
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2180
    }
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2181 2182
}

2183
static void opt_frame_crop_top(const char *arg)
2184
{
2185
    frame_topBand = atoi(arg);
2186 2187 2188 2189 2190 2191 2192 2193 2194
    if (frame_topBand < 0) {
        fprintf(stderr, "Incorrect top crop size\n");
        exit(1);
    }
    if ((frame_topBand % 2) != 0) {
        fprintf(stderr, "Top crop size must be a multiple of 2\n");
        exit(1);
    }
    if ((frame_topBand) >= frame_height){
2195
        fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2196 2197 2198 2199 2200
        exit(1);
    }
    frame_height -= frame_topBand;
}

2201
static void opt_frame_crop_bottom(const char *arg)
2202 2203 2204 2205 2206 2207 2208 2209
{
    frame_bottomBand = atoi(arg);
    if (frame_bottomBand < 0) {
        fprintf(stderr, "Incorrect bottom crop size\n");
        exit(1);
    }
    if ((frame_bottomBand % 2) != 0) {
        fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2210
        exit(1);
2211 2212
    }
    if ((frame_bottomBand) >= frame_height){
2213
        fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2214 2215 2216 2217 2218
        exit(1);
    }
    frame_height -= frame_bottomBand;
}

2219
static void opt_frame_crop_left(const char *arg)
2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230
{
    frame_leftBand = atoi(arg);
    if (frame_leftBand < 0) {
        fprintf(stderr, "Incorrect left crop size\n");
        exit(1);
    }
    if ((frame_leftBand % 2) != 0) {
        fprintf(stderr, "Left crop size must be a multiple of 2\n");
        exit(1);
    }
    if ((frame_leftBand) >= frame_width){
2231
        fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2232 2233 2234 2235 2236
        exit(1);
    }
    frame_width -= frame_leftBand;
}

2237
static void opt_frame_crop_right(const char *arg)
2238 2239 2240 2241 2242 2243 2244 2245
{
    frame_rightBand = atoi(arg);
    if (frame_rightBand < 0) {
        fprintf(stderr, "Incorrect right crop size\n");
        exit(1);
    }
    if ((frame_rightBand % 2) != 0) {
        fprintf(stderr, "Right crop size must be a multiple of 2\n");
2246
        exit(1);
2247 2248
    }
    if ((frame_rightBand) >= frame_width){
2249
        fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2250 2251 2252 2253 2254
        exit(1);
    }
    frame_width -= frame_rightBand;
}

2255
static void opt_frame_size(const char *arg)
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{
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2257
    if (parse_image_size(&frame_width, &frame_height, arg) < 0) {
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2258 2259 2260 2261 2262 2263 2264 2265 2266
        fprintf(stderr, "Incorrect frame size\n");
        exit(1);
    }
    if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
        fprintf(stderr, "Frame size must be a multiple of 2\n");
        exit(1);
    }
}

2267 2268 2269

#define SCALEBITS 10
#define ONE_HALF  (1 << (SCALEBITS - 1))
2270
#define FIX(x)    ((int) ((x) * (1<<SCALEBITS) + 0.5))
2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288

#define RGB_TO_Y(r, g, b) \
((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
  FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)

#define RGB_TO_U(r1, g1, b1, shift)\
(((- FIX(0.16874) * r1 - FIX(0.33126) * g1 +         \
     FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)

#define RGB_TO_V(r1, g1, b1, shift)\
(((FIX(0.50000) * r1 - FIX(0.41869) * g1 -           \
   FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)

static void opt_pad_color(const char *arg) {
    /* Input is expected to be six hex digits similar to
       how colors are expressed in html tags (but without the #) */
    int rgb = strtol(arg, NULL, 16);
    int r,g,b;
2289 2290

    r = (rgb >> 16);
2291 2292 2293 2294 2295 2296 2297 2298 2299 2300
    g = ((rgb >> 8) & 255);
    b = (rgb & 255);

    padcolor[0] = RGB_TO_Y(r,g,b);
    padcolor[1] = RGB_TO_U(r,g,b,0);
    padcolor[2] = RGB_TO_V(r,g,b,0);
}

static void opt_frame_pad_top(const char *arg)
{
2301
    frame_padtop = atoi(arg);
2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313
    if (frame_padtop < 0) {
        fprintf(stderr, "Incorrect top pad size\n");
        exit(1);
    }
    if ((frame_padtop % 2) != 0) {
        fprintf(stderr, "Top pad size must be a multiple of 2\n");
        exit(1);
    }
}

static void opt_frame_pad_bottom(const char *arg)
{
2314
    frame_padbottom = atoi(arg);
2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327
    if (frame_padbottom < 0) {
        fprintf(stderr, "Incorrect bottom pad size\n");
        exit(1);
    }
    if ((frame_padbottom % 2) != 0) {
        fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
        exit(1);
    }
}


static void opt_frame_pad_left(const char *arg)
{
2328
    frame_padleft = atoi(arg);
2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341
    if (frame_padleft < 0) {
        fprintf(stderr, "Incorrect left pad size\n");
        exit(1);
    }
    if ((frame_padleft % 2) != 0) {
        fprintf(stderr, "Left pad size must be a multiple of 2\n");
        exit(1);
    }
}


static void opt_frame_pad_right(const char *arg)
{
2342
    frame_padright = atoi(arg);
2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353
    if (frame_padright < 0) {
        fprintf(stderr, "Incorrect right pad size\n");
        exit(1);
    }
    if ((frame_padright % 2) != 0) {
        fprintf(stderr, "Right pad size must be a multiple of 2\n");
        exit(1);
    }
}


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2354 2355 2356 2357 2358
static void opt_frame_pix_fmt(const char *arg)
{
    frame_pix_fmt = avcodec_get_pix_fmt(arg);
}

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2359 2360 2361 2362 2363
static void opt_frame_aspect_ratio(const char *arg)
{
    int x = 0, y = 0;
    double ar = 0;
    const char *p;
2364

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2365 2366 2367
    p = strchr(arg, ':');
    if (p) {
        x = strtol(arg, (char **)&arg, 10);
2368 2369 2370 2371
        if (arg == p)
            y = strtol(arg+1, (char **)&arg, 10);
        if (x > 0 && y > 0)
            ar = (double)x / (double)y;
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2372 2373 2374 2375 2376
    } else
        ar = strtod(arg, (char **)&arg);

    if (!ar) {
        fprintf(stderr, "Incorrect aspect ratio specification.\n");
2377
        exit(1);
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2378 2379 2380 2381
    }
    frame_aspect_ratio = ar;
}

2382
static void opt_gop_size(const char *arg)
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2383 2384 2385 2386
{
    gop_size = atoi(arg);
}

2387
static void opt_b_frames(const char *arg)
2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398
{
    b_frames = atoi(arg);
    if (b_frames > FF_MAX_B_FRAMES) {
        fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
        exit(1);
    } else if (b_frames < 1) {
        fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
        exit(1);
    }
}

2399 2400 2401 2402 2403
static void opt_pre_me(const char *arg)
{
    pre_me = atoi(arg);
}

2404
static void opt_qscale(const char *arg)
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2405
{
2406
    video_qscale = atof(arg);
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2407
    if (video_qscale <= 0 ||
2408
        video_qscale > 255) {
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2409
        fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
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glantau committed
2410 2411 2412 2413
        exit(1);
    }
}

2414 2415 2416 2417 2418 2419 2420 2421 2422 2423
static void opt_qsquish(const char *arg)
{
    video_qsquish = atof(arg);
    if (video_qsquish < 0.0 ||
        video_qsquish > 99.0) {
        fprintf(stderr, "qsquish must be >= 0.0 and <= 99.0\n");
        exit(1);
    }
}

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2424 2425 2426 2427 2428 2429 2430 2431 2432 2433
static void opt_lmax(const char *arg)
{
    video_lmax = atof(arg)*FF_QP2LAMBDA;
}

static void opt_lmin(const char *arg)
{
    video_lmin = atof(arg)*FF_QP2LAMBDA;
}

2434
static void opt_qmin(const char *arg)
2435 2436
{
    video_qmin = atoi(arg);
2437
    if (video_qmin < 1 ||
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2438 2439
        video_qmin > 51) {
        fprintf(stderr, "qmin must be >= 1 and <= 51\n");
2440 2441 2442 2443
        exit(1);
    }
}

2444
static void opt_qmax(const char *arg)
2445 2446
{
    video_qmax = atoi(arg);
2447
    if (video_qmax < 1 ||
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lorenm committed
2448 2449
        video_qmax > 51) {
        fprintf(stderr, "qmax must be >= 1 and <= 51\n");
2450 2451 2452 2453
        exit(1);
    }
}

2454
static void opt_mb_lmin(const char *arg)
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2455
{
2456 2457 2458 2459
    video_mb_lmin = atof(arg)*FF_QP2LAMBDA;
    if (video_mb_lmin < 1 ||
        video_mb_lmin > FF_LAMBDA_MAX) {
        fprintf(stderr, "mblmin must be >= 1 and <= %d\n", FF_LAMBDA_MAX / FF_QP2LAMBDA);
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2460 2461 2462 2463
        exit(1);
    }
}

2464
static void opt_mb_lmax(const char *arg)
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2465
{
2466 2467 2468 2469
    video_mb_lmax = atof(arg)*FF_QP2LAMBDA;
    if (video_mb_lmax < 1 ||
        video_mb_lmax > FF_LAMBDA_MAX) {
        fprintf(stderr, "mblmax must be >= 1 and <= %d\n", FF_LAMBDA_MAX / FF_QP2LAMBDA);
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2470 2471 2472 2473
        exit(1);
    }
}

2474
static void opt_qdiff(const char *arg)
2475 2476 2477 2478 2479 2480 2481 2482 2483
{
    video_qdiff = atoi(arg);
    if (video_qdiff < 0 ||
        video_qdiff > 31) {
        fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
        exit(1);
    }
}

2484
static void opt_qblur(const char *arg)
2485 2486 2487 2488
{
    video_qblur = atof(arg);
}

2489
static void opt_qcomp(const char *arg)
2490 2491 2492
{
    video_qcomp = atof(arg);
}
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2493

2494
static void opt_rc_initial_cplx(const char *arg)
2495 2496 2497
{
    video_rc_initial_cplx = atof(arg);
}
2498
static void opt_b_qfactor(const char *arg)
2499 2500 2501
{
    video_b_qfactor = atof(arg);
}
2502
static void opt_i_qfactor(const char *arg)
2503 2504 2505
{
    video_i_qfactor = atof(arg);
}
2506
static void opt_b_qoffset(const char *arg)
2507 2508 2509
{
    video_b_qoffset = atof(arg);
}
2510
static void opt_i_qoffset(const char *arg)
2511 2512 2513 2514
{
    video_i_qoffset = atof(arg);
}

2515 2516 2517 2518 2519 2520 2521 2522 2523
static void opt_ibias(const char *arg)
{
    video_intra_quant_bias = atoi(arg);
}
static void opt_pbias(const char *arg)
{
    video_inter_quant_bias = atoi(arg);
}

2524
static void opt_packet_size(const char *arg)
2525 2526 2527 2528
{
    packet_size= atoi(arg);
}

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2529 2530 2531 2532 2533
static void opt_error_rate(const char *arg)
{
    error_rate= atoi(arg);
}

2534
static void opt_strict(const char *arg)
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2535 2536 2537 2538
{
    strict= atoi(arg);
}

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2539 2540 2541 2542 2543
static void opt_top_field_first(const char *arg)
{
    top_field_first= atoi(arg);
}

2544 2545 2546 2547 2548
static void opt_sc_threshold(const char *arg)
{
    sc_threshold= atoi(arg);
}

2549 2550 2551 2552 2553
static void opt_me_range(const char *arg)
{
    me_range = atoi(arg);
}

2554 2555 2556
static void opt_thread_count(const char *arg)
{
    thread_count= atoi(arg);
2557
#if !defined(HAVE_THREADS)
2558 2559
    if (verbose >= 0)
        fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
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2560
#endif
2561 2562
}

2563
static void opt_audio_bitrate(const char *arg)
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2564 2565 2566 2567
{
    audio_bit_rate = atoi(arg) * 1000;
}

2568
static void opt_audio_rate(const char *arg)
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{
    audio_sample_rate = atoi(arg);
}

2573
static void opt_audio_channels(const char *arg)
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2574 2575 2576 2577
{
    audio_channels = atoi(arg);
}

2578
static void opt_video_device(const char *arg)
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2579
{
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    video_device = av_strdup(arg);
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}

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static void opt_grab_device(const char *arg)
{
    grab_device = av_strdup(arg);
}

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static void opt_video_channel(const char *arg)
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{
    video_channel = strtol(arg, NULL, 0);
}

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static void opt_video_standard(const char *arg)
{
    video_standard = av_strdup(arg);
}

2598
static void opt_audio_device(const char *arg)
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{
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    audio_device = av_strdup(arg);
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}

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static void opt_codec(int *pstream_copy, int *pcodec_id,
                      int codec_type, const char *arg)
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{
    AVCodec *p;

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    if (!strcmp(arg, "copy")) {
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        *pstream_copy = 1;
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    } else {
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        p = first_avcodec;
        while (p) {
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            if (!strcmp(p->name, arg) && p->type == codec_type)
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                break;
            p = p->next;
        }
        if (p == NULL) {
2618
            fprintf(stderr, "Unknown codec '%s'\n", arg);
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            exit(1);
        } else {
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            *pcodec_id = p->id;
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        }
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    }
}

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static void opt_audio_codec(const char *arg)
{
    opt_codec(&audio_stream_copy, &audio_codec_id, CODEC_TYPE_AUDIO, arg);
}

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static void opt_audio_tag(const char *arg)
{
    char *tail;
    audio_codec_tag= strtol(arg, &tail, 0);

    if(!tail || *tail)
        audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
}

static void opt_video_tag(const char *arg)
{
    char *tail;
    video_codec_tag= strtol(arg, &tail, 0);

    if(!tail || *tail)
        video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
}

2649
static void add_frame_hooker(const char *arg)
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{
    int argc = 0;
    char *argv[64];
    int i;
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    char *args = av_strdup(arg);
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    using_vhook = 1;

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    argv[0] = strtok(args, " ");
    while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
    }

    i = frame_hook_add(argc, argv);

    if (i != 0) {
        fprintf(stderr, "Failed to add video hook function: %s\n", arg);
        exit(1);
    }
}

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const char *motion_str[] = {
    "zero",
    "full",
    "log",
    "phods",
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    "epzs",
    "x1",
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    "hex",
    "umh",
    "iter",
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    NULL,
};

2683
static void opt_motion_estimation(const char *arg)
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{
    const char **p;
    p = motion_str;
    for(;;) {
        if (!*p) {
            fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
            exit(1);
        }
        if (!strcmp(*p, arg))
            break;
        p++;
    }
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    me_method = (p - motion_str) + 1;
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}

2699
static void opt_video_codec(const char *arg)
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{
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    opt_codec(&video_stream_copy, &video_codec_id, CODEC_TYPE_VIDEO, arg);
}
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static void opt_subtitle_codec(const char *arg)
{
    opt_codec(&subtitle_stream_copy, &subtitle_codec_id, CODEC_TYPE_SUBTITLE, arg);
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}

2709
static void opt_map(const char *arg)
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{
    AVStreamMap *m;
    const char *p;

    p = arg;
    m = &stream_maps[nb_stream_maps++];

    m->file_index = strtol(arg, (char **)&p, 0);
    if (*p)
        p++;
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    m->stream_index = strtol(p, (char **)&p, 0);
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    if (*p) {
        p++;
        m->sync_file_index = strtol(p, (char **)&p, 0);
        if (*p)
            p++;
        m->sync_stream_index = strtol(p, (char **)&p, 0);
    } else {
        m->sync_file_index = m->file_index;
        m->sync_stream_index = m->stream_index;
    }
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}

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static void opt_map_meta_data(const char *arg)
{
    AVMetaDataMap *m;
    const char *p;
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    p = arg;
    m = &meta_data_maps[nb_meta_data_maps++];

    m->out_file = strtol(arg, (char **)&p, 0);
    if (*p)
        p++;

    m->in_file = strtol(p, (char **)&p, 0);
}

2749
static void opt_recording_time(const char *arg)
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{
    recording_time = parse_date(arg, 1);
}

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static void opt_start_time(const char *arg)
{
    start_time = parse_date(arg, 1);
}

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static void opt_rec_timestamp(const char *arg)
{
    rec_timestamp = parse_date(arg, 0) / 1000000;
}

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static void opt_input_ts_offset(const char *arg)
{
    input_ts_offset = parse_date(arg, 1);
}

2769
static void opt_input_file(const char *filename)
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{
    AVFormatContext *ic;
    AVFormatParameters params, *ap = &params;
2773
    int err, i, ret, rfps, rfps_base;
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    int64_t timestamp;
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    if (!strcmp(filename, "-"))
        filename = "pipe:";

2779
    using_stdin |= !strncmp(filename, "pipe:", 5) ||
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                   !strcmp( filename, "/dev/stdin" );

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2782
    /* get default parameters from command line */
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    ic = av_alloc_format_context();

2785
    memset(ap, 0, sizeof(*ap));
2786
    ap->prealloced_context = 1;
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    ap->sample_rate = audio_sample_rate;
    ap->channels = audio_channels;
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    ap->time_base.den = frame_rate;
    ap->time_base.num = frame_rate_base;
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    ap->width = frame_width + frame_padleft + frame_padright;
    ap->height = frame_height + frame_padtop + frame_padbottom;
2793
    ap->image_format = image_format;
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    ap->pix_fmt = frame_pix_fmt;
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    ap->device  = grab_device;
    ap->channel = video_channel;
    ap->standard = video_standard;
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    ap->video_codec_id = video_codec_id;
    ap->audio_codec_id = audio_codec_id;
    if(pgmyuv_compatibility_hack)
        ap->video_codec_id= CODEC_ID_PGMYUV;
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    for(i=0; i<opt_name_count; i++){
        AVOption *opt;
        double d= av_get_double(avformat_opts, opt_names[i], &opt);
        if(d==d && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
            av_set_double(ic, opt_names[i], d);
    }
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    /* open the input file with generic libav function */
    err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
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    if (err < 0) {
2812
        print_error(filename, err);
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        exit(1);
    }
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    ic->loop_input = loop_input;

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    /* If not enough info to get the stream parameters, we decode the
       first frames to get it. (used in mpeg case for example) */
    ret = av_find_stream_info(ic);
2821
    if (ret < 0 && verbose >= 0) {
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        fprintf(stderr, "%s: could not find codec parameters\n", filename);
        exit(1);
    }

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    timestamp = start_time;
    /* add the stream start time */
    if (ic->start_time != AV_NOPTS_VALUE)
        timestamp += ic->start_time;

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    /* if seeking requested, we execute it */
    if (start_time != 0) {
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        ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2834
        if (ret < 0) {
2835
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
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                    filename, (double)timestamp / AV_TIME_BASE);
        }
        /* reset seek info */
        start_time = 0;
    }

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    /* update the current parameters so that they match the one of the input stream */
    for(i=0;i<ic->nb_streams;i++) {
2844
        int j;
2845
        AVCodecContext *enc = ic->streams[i]->codec;
2846
#if defined(HAVE_THREADS)
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        if(thread_count>1)
            avcodec_thread_init(enc, thread_count);
#endif
        enc->thread_count= thread_count;
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        switch(enc->codec_type) {
        case CODEC_TYPE_AUDIO:
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            for(j=0; j<opt_name_count; j++){
                AVOption *opt;
                double d= av_get_double(avctx_opts, opt_names[j], &opt);
                if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
                    av_set_double(enc, opt_names[j], d);
            }
2859
            //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
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            audio_channels = enc->channels;
            audio_sample_rate = enc->sample_rate;
2862
            if(audio_disable)
2863
                ic->streams[i]->discard= AVDISCARD_ALL;
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            break;
        case CODEC_TYPE_VIDEO:
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            for(j=0; j<opt_name_count; j++){
                AVOption *opt;
                double d= av_get_double(avctx_opts, opt_names[j], &opt);
                if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
                    av_set_double(enc, opt_names[j], d);
            }
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            frame_height = enc->height;
            frame_width = enc->width;
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            frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
            frame_pix_fmt = enc->pix_fmt;
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            rfps      = ic->streams[i]->r_frame_rate.num;
            rfps_base = ic->streams[i]->r_frame_rate.den;
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            enc->workaround_bugs = workaround_bugs;
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            if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
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            if(me_threshold)
                enc->debug |= FF_DEBUG_MV;
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2883
            if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
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                if (verbose >= 0)
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                    fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
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                            i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2888

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                    (float)rfps / rfps_base, rfps, rfps_base);
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            }
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            /* update the current frame rate to match the stream frame rate */
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            frame_rate      = rfps;
            frame_rate_base = rfps_base;
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            enc->rate_emu = rate_emu;
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            if(video_disable)
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                ic->streams[i]->discard= AVDISCARD_ALL;
            else if(video_discard)
                ic->streams[i]->discard= video_discard;
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            break;
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        case CODEC_TYPE_DATA:
            break;
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        case CODEC_TYPE_SUBTITLE:
            break;
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        case CODEC_TYPE_UNKNOWN:
            break;
2907
        default:
2908
            av_abort();
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        }
    }
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    input_files[nb_input_files] = ic;
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    input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
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2914
    /* dump the file content */
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    if (verbose >= 0)
        dump_format(ic, nb_input_files, filename, 0);

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    nb_input_files++;
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    file_iformat = NULL;
    file_oformat = NULL;
2921
    image_format = NULL;
2922

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    grab_device = NULL;
    video_channel = 0;
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2926
    rate_emu = 0;
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}

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static void opt_grab(const char *arg)
{
    file_iformat = av_find_input_format(arg);
    opt_input_file("");
}

2935
static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
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{
    int has_video, has_audio, i, j;
    AVFormatContext *ic;

    has_video = 0;
    has_audio = 0;
    for(j=0;j<nb_input_files;j++) {
        ic = input_files[j];
        for(i=0;i<ic->nb_streams;i++) {
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            AVCodecContext *enc = ic->streams[i]->codec;
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            switch(enc->codec_type) {
            case CODEC_TYPE_AUDIO:
                has_audio = 1;
                break;
            case CODEC_TYPE_VIDEO:
                has_video = 1;
                break;
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            case CODEC_TYPE_DATA:
2954
            case CODEC_TYPE_UNKNOWN:
2955
            case CODEC_TYPE_SUBTITLE:
2956
                break;
2957
            default:
2958
                av_abort();
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            }
        }
    }
    *has_video_ptr = has_video;
    *has_audio_ptr = has_audio;
}

2966
static void new_video_stream(AVFormatContext *oc)
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{
    AVStream *st;
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    AVCodecContext *video_enc;
    int codec_id;
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    st = av_new_stream(oc, oc->nb_streams);
    if (!st) {
        fprintf(stderr, "Could not alloc stream\n");
        exit(1);
    }
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    bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
    video_bitstream_filters= NULL;

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#if defined(HAVE_THREADS)
    if(thread_count>1)
2982
        avcodec_thread_init(st->codec, thread_count);
2983
#endif
2984

2985
    video_enc = st->codec;
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    if(video_codec_tag)
        video_enc->codec_tag= video_codec_tag;
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    if(   (video_global_header&1)
2991
       || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
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        video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
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        avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
    }
    if(video_global_header&2){
2996
        video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
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        avctx_opts->flags2|= CODEC_FLAG2_LOCAL_HEADER;
    }
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    if (video_stream_copy) {
        st->stream_copy = 1;
        video_enc->codec_type = CODEC_TYPE_VIDEO;
    } else {
        char *p;
        int i;
        AVCodec *codec;
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        codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
        if (video_codec_id != CODEC_ID_NONE)
            codec_id = video_codec_id;
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        video_enc->codec_id = codec_id;
        codec = avcodec_find_encoder(codec_id);
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        for(i=0; i<opt_name_count; i++){
             AVOption *opt;
             double d= av_get_double(avctx_opts, opt_names[i], &opt);
             if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
                 av_set_double(video_enc, opt_names[i], d);
        }
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        video_enc->bit_rate = video_bit_rate;
        video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
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        video_enc->time_base.den = frame_rate;
        video_enc->time_base.num = frame_rate_base;
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        if(codec && codec->supported_framerates){
            const AVRational *p= codec->supported_framerates;
            AVRational req= (AVRational){frame_rate, frame_rate_base};
            const AVRational *best=NULL;
            AVRational best_error= (AVRational){INT_MAX, 1};
            for(; p->den!=0; p++){
                AVRational error= av_sub_q(req, *p);
                if(error.num <0) error.num *= -1;
                if(av_cmp_q(error, best_error) < 0){
                    best_error= error;
                    best= p;
                }
            }
            video_enc->time_base.den= best->num;
            video_enc->time_base.num= best->den;
        }
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        video_enc->width = frame_width + frame_padright + frame_padleft;
        video_enc->height = frame_height + frame_padtop + frame_padbottom;
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        video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
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        video_enc->pix_fmt = frame_pix_fmt;

        if(codec && codec->pix_fmts){
            const enum PixelFormat *p= codec->pix_fmts;
            for(; *p!=-1; p++){
                if(*p == video_enc->pix_fmt)
                    break;
            }
            if(*p == -1)
                video_enc->pix_fmt = codec->pix_fmts[0];
        }

        if (!intra_only)
            video_enc->gop_size = gop_size;
        else
            video_enc->gop_size = 0;
        if (video_qscale || same_quality) {
            video_enc->flags |= CODEC_FLAG_QSCALE;
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            video_enc->global_quality=
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                st->quality = FF_QP2LAMBDA * video_qscale;
        }

        if(intra_matrix)
            video_enc->intra_matrix = intra_matrix;
        if(inter_matrix)
            video_enc->inter_matrix = inter_matrix;

        video_enc->pre_me = pre_me;
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        if (b_frames) {
            video_enc->max_b_frames = b_frames;
            video_enc->b_quant_factor = 2.0;
        }
        video_enc->qmin = video_qmin;
        video_enc->qmax = video_qmax;
        video_enc->lmin = video_lmin;
        video_enc->lmax = video_lmax;
        video_enc->rc_qsquish = video_qsquish;
        video_enc->mb_lmin = video_mb_lmin;
        video_enc->mb_lmax = video_mb_lmax;
        video_enc->max_qdiff = video_qdiff;
        video_enc->qblur = video_qblur;
        video_enc->qcompress = video_qcomp;
        video_enc->rc_eq = video_rc_eq;
        video_enc->workaround_bugs = workaround_bugs;
        video_enc->thread_count = thread_count;
        p= video_rc_override_string;
        for(i=0; p; i++){
            int start, end, q;
            int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
            if(e!=3){
                fprintf(stderr, "error parsing rc_override\n");
                exit(1);
            }
3100 3101
            video_enc->rc_override=
                av_realloc(video_enc->rc_override,
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                           sizeof(RcOverride)*(i+1));
            video_enc->rc_override[i].start_frame= start;
            video_enc->rc_override[i].end_frame  = end;
            if(q>0){
                video_enc->rc_override[i].qscale= q;
                video_enc->rc_override[i].quality_factor= 1.0;
            }
            else{
                video_enc->rc_override[i].qscale= 0;
                video_enc->rc_override[i].quality_factor= -q/100.0;
            }
            p= strchr(p, '/');
            if(p) p++;
        }
        video_enc->rc_override_count=i;

        video_enc->rc_max_rate = video_rc_max_rate;
        video_enc->rc_min_rate = video_rc_min_rate;
        video_enc->rc_buffer_size = video_rc_buffer_size;
        video_enc->rc_initial_buffer_occupancy = video_rc_buffer_size*3/4;
        video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
        video_enc->rc_initial_cplx= video_rc_initial_cplx;
        video_enc->i_quant_factor = video_i_qfactor;
        video_enc->b_quant_factor = video_b_qfactor;
        video_enc->i_quant_offset = video_i_qoffset;
        video_enc->b_quant_offset = video_b_qoffset;
        video_enc->intra_quant_bias = video_intra_quant_bias;
        video_enc->inter_quant_bias = video_inter_quant_bias;
        video_enc->me_threshold= me_threshold;
        video_enc->mb_threshold= mb_threshold;
        video_enc->intra_dc_precision= intra_dc_precision - 8;
        video_enc->strict_std_compliance = strict;
        video_enc->error_rate = error_rate;
        video_enc->scenechange_threshold= sc_threshold;
        video_enc->me_range = me_range;
        video_enc->me_penalty_compensation= me_penalty_compensation;
        video_enc->frame_skip_threshold= frame_skip_threshold;
        video_enc->frame_skip_factor= frame_skip_factor;
        video_enc->frame_skip_exp= frame_skip_exp;

        if(packet_size){
            video_enc->rtp_mode= 1;
            video_enc->rtp_payload_size= packet_size;
        }
3146

3147 3148
        if (do_psnr)
            video_enc->flags|= CODEC_FLAG_PSNR;
3149

3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171
        video_enc->me_method = me_method;

        /* two pass mode */
        if (do_pass) {
            if (do_pass == 1) {
                video_enc->flags |= CODEC_FLAG_PASS1;
            } else {
                video_enc->flags |= CODEC_FLAG_PASS2;
            }
        }
    }

    /* reset some key parameters */
    video_disable = 0;
    video_codec_id = CODEC_ID_NONE;
    video_stream_copy = 0;
}

static void new_audio_stream(AVFormatContext *oc)
{
    AVStream *st;
    AVCodecContext *audio_enc;
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3172
    int codec_id, i;
3173

3174 3175 3176 3177 3178
    st = av_new_stream(oc, oc->nb_streams);
    if (!st) {
        fprintf(stderr, "Could not alloc stream\n");
        exit(1);
    }
3179 3180 3181 3182

    bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
    audio_bitstream_filters= NULL;

3183 3184
#if defined(HAVE_THREADS)
    if(thread_count>1)
3185
        avcodec_thread_init(st->codec, thread_count);
3186
#endif
3187

3188
    audio_enc = st->codec;
3189
    audio_enc->codec_type = CODEC_TYPE_AUDIO;
3190

3191 3192
    if(audio_codec_tag)
        audio_enc->codec_tag= audio_codec_tag;
3193

3194
    if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3195
        audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3196 3197
        avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
    }
3198 3199 3200 3201 3202
    if (audio_stream_copy) {
        st->stream_copy = 1;
        audio_enc->channels = audio_channels;
    } else {
        codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3203

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3204 3205 3206 3207 3208 3209
        for(i=0; i<opt_name_count; i++){
            AVOption *opt;
            double d= av_get_double(avctx_opts, opt_names[i], &opt);
            if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
                av_set_double(audio_enc, opt_names[i], d);
        }
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3211 3212 3213
        if (audio_codec_id != CODEC_ID_NONE)
            codec_id = audio_codec_id;
        audio_enc->codec_id = codec_id;
3214

3215
        audio_enc->bit_rate = audio_bit_rate;
3216 3217 3218 3219
        if (audio_qscale > QSCALE_NONE) {
            audio_enc->flags |= CODEC_FLAG_QSCALE;
            audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
        }
3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230
        audio_enc->strict_std_compliance = strict;
        audio_enc->thread_count = thread_count;
        /* For audio codecs other than AC3 or DTS we limit */
        /* the number of coded channels to stereo   */
        if (audio_channels > 2 && codec_id != CODEC_ID_AC3
            && codec_id != CODEC_ID_DTS) {
            audio_enc->channels = 2;
        } else
            audio_enc->channels = audio_channels;
    }
    audio_enc->sample_rate = audio_sample_rate;
3231
    audio_enc->time_base= (AVRational){1, audio_sample_rate};
3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248
    if (audio_language) {
        pstrcpy(st->language, sizeof(st->language), audio_language);
        av_free(audio_language);
        audio_language = NULL;
    }

    /* reset some key parameters */
    audio_disable = 0;
    audio_codec_id = CODEC_ID_NONE;
    audio_stream_copy = 0;
}

static void opt_new_subtitle_stream(void)
{
    AVFormatContext *oc;
    AVStream *st;
    AVCodecContext *subtitle_enc;
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3249
    int i;
3250

3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262
    if (nb_output_files <= 0) {
        fprintf(stderr, "At least one output file must be specified\n");
        exit(1);
    }
    oc = output_files[nb_output_files - 1];

    st = av_new_stream(oc, oc->nb_streams);
    if (!st) {
        fprintf(stderr, "Could not alloc stream\n");
        exit(1);
    }

3263
    subtitle_enc = st->codec;
3264 3265 3266 3267
    subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
    if (subtitle_stream_copy) {
        st->stream_copy = 1;
    } else {
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3268 3269 3270 3271 3272 3273
        for(i=0; i<opt_name_count; i++){
             AVOption *opt;
             double d= av_get_double(avctx_opts, opt_names[i], &opt);
             if(d==d && (opt->flags&AV_OPT_FLAG_SUBTITLE_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
                 av_set_double(subtitle_enc, opt_names[i], d);
        }
3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312
        subtitle_enc->codec_id = subtitle_codec_id;
    }

    if (subtitle_language) {
        pstrcpy(st->language, sizeof(st->language), subtitle_language);
        av_free(subtitle_language);
        subtitle_language = NULL;
    }

    subtitle_codec_id = CODEC_ID_NONE;
    subtitle_stream_copy = 0;
}

static void opt_new_audio_stream(void)
{
    AVFormatContext *oc;
    if (nb_output_files <= 0) {
        fprintf(stderr, "At least one output file must be specified\n");
        exit(1);
    }
    oc = output_files[nb_output_files - 1];
    new_audio_stream(oc);
}

static void opt_new_video_stream(void)
{
    AVFormatContext *oc;
    if (nb_output_files <= 0) {
        fprintf(stderr, "At least one output file must be specified\n");
        exit(1);
    }
    oc = output_files[nb_output_files - 1];
    new_video_stream(oc);
}

static void opt_output_file(const char *filename)
{
    AVFormatContext *oc;
    int use_video, use_audio, input_has_video, input_has_audio;
3313
    AVFormatParameters params, *ap = &params;
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3314 3315 3316 3317

    if (!strcmp(filename, "-"))
        filename = "pipe:";

3318
    oc = av_alloc_format_context();
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3320 3321 3322 3323 3324 3325 3326
    if (!file_oformat) {
        file_oformat = guess_format(NULL, filename, NULL);
        if (!file_oformat) {
            fprintf(stderr, "Unable for find a suitable output format for '%s'\n",
                    filename);
            exit(1);
        }
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3327
    }
3328

3329
    oc->oformat = file_oformat;
3330
    pstrcpy(oc->filename, sizeof(oc->filename), filename);
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3331

3332
    if (!strcmp(file_oformat->name, "ffm") &&
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        strstart(filename, "http:", NULL)) {
        /* special case for files sent to ffserver: we get the stream
           parameters from ffserver */
        if (read_ffserver_streams(oc, filename) < 0) {
            fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
            exit(1);
        }
    } else {
3341 3342
        use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_id != CODEC_ID_NONE;
        use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_id != CODEC_ID_NONE;
3343

3344 3345 3346 3347 3348 3349 3350 3351 3352
        /* disable if no corresponding type found and at least one
           input file */
        if (nb_input_files > 0) {
            check_audio_video_inputs(&input_has_video, &input_has_audio);
            if (!input_has_video)
                use_video = 0;
            if (!input_has_audio)
                use_audio = 0;
        }
3353 3354

        /* manual disable */
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3355 3356 3357 3358 3359 3360
        if (audio_disable) {
            use_audio = 0;
        }
        if (video_disable) {
            use_video = 0;
        }
3361

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3362
        if (use_video) {
3363
            new_video_stream(oc);
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3364
        }
3365

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3366
        if (use_audio) {
3367
            new_audio_stream(oc);
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3368 3369
        }

3370
        if (!oc->nb_streams) {
3371
            fprintf(stderr, "No audio or video streams available\n");
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3372 3373 3374
            exit(1);
        }

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3375
        oc->timestamp = rec_timestamp;
3376

3377
        if (str_title)
3378
            pstrcpy(oc->title, sizeof(oc->title), str_title);
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3379
        if (str_author)
3380
            pstrcpy(oc->author, sizeof(oc->author), str_author);
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3381
        if (str_copyright)
3382
            pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
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3383
        if (str_comment)
3384
            pstrcpy(oc->comment, sizeof(oc->comment), str_comment);
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3385 3386
    }

3387
    output_files[nb_output_files++] = oc;
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3388

3389
    /* check filename in case of an image number is expected */
3390
    if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3391
        if (!av_filename_number_test(oc->filename)) {
3392
            print_error(oc->filename, AVERROR_NUMEXPECTED);
3393
            exit(1);
3394
        }
3395 3396
    }

3397
    if (!(oc->oformat->flags & AVFMT_NOFILE)) {
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3398
        /* test if it already exists to avoid loosing precious files */
3399
        if (!file_overwrite &&
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3400 3401 3402 3403
            (strchr(filename, ':') == NULL ||
             strstart(filename, "file:", NULL))) {
            if (url_exist(filename)) {
                int c;
3404

3405 3406 3407 3408 3409 3410 3411 3412
                if ( !using_stdin ) {
                    fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
                    fflush(stderr);
                    c = getchar();
                    if (toupper(c) != 'Y') {
                        fprintf(stderr, "Not overwriting - exiting\n");
                        exit(1);
                    }
3413 3414
                                }
                                else {
3415
                    fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
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3416
                    exit(1);
3417
                                }
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3418 3419
            }
        }
3420

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3421 3422 3423 3424 3425 3426 3427
        /* open the file */
        if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
            fprintf(stderr, "Could not open '%s'\n", filename);
            exit(1);
        }
    }

3428 3429 3430 3431 3432 3433 3434 3435
    memset(ap, 0, sizeof(*ap));
    ap->image_format = image_format;
    if (av_set_parameters(oc, ap) < 0) {
        fprintf(stderr, "%s: Invalid encoding parameters\n",
                oc->filename);
        exit(1);
    }

3436 3437
    oc->packet_size= mux_packet_size;
    oc->mux_rate= mux_rate;
3438 3439
    oc->preload= (int)(mux_preload*AV_TIME_BASE);
    oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3440
    oc->loop_output = loop_output;
3441

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3442
    /* reset some options */
3443 3444
    file_oformat = NULL;
    file_iformat = NULL;
3445
    image_format = NULL;
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3446 3447
}

3448
/* prepare dummy protocols for grab */
3449
static void prepare_grab(void)
3450 3451 3452 3453
{
    int has_video, has_audio, i, j;
    AVFormatContext *oc;
    AVFormatContext *ic;
3454
    AVFormatParameters vp1, *vp = &vp1;
3455
    AVFormatParameters ap1, *ap = &ap1;
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3457 3458 3459 3460
    /* see if audio/video inputs are needed */
    has_video = 0;
    has_audio = 0;
    memset(ap, 0, sizeof(*ap));
3461
    memset(vp, 0, sizeof(*vp));
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3462
    vp->time_base.num= 1;
3463 3464 3465
    for(j=0;j<nb_output_files;j++) {
        oc = output_files[j];
        for(i=0;i<oc->nb_streams;i++) {
3466
            AVCodecContext *enc = oc->streams[i]->codec;
3467 3468 3469 3470 3471 3472 3473 3474 3475
            switch(enc->codec_type) {
            case CODEC_TYPE_AUDIO:
                if (enc->sample_rate > ap->sample_rate)
                    ap->sample_rate = enc->sample_rate;
                if (enc->channels > ap->channels)
                    ap->channels = enc->channels;
                has_audio = 1;
                break;
            case CODEC_TYPE_VIDEO:
3476 3477 3478 3479
                if (enc->width > vp->width)
                    vp->width = enc->width;
                if (enc->height > vp->height)
                    vp->height = enc->height;
3480

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3481 3482
                if (vp->time_base.num*(int64_t)enc->time_base.den > enc->time_base.num*(int64_t)vp->time_base.den){
                    vp->time_base = enc->time_base;
3483 3484 3485 3486
                    vp->width += frame_leftBand + frame_rightBand;
                    vp->width -= (frame_padleft + frame_padright);
                    vp->height += frame_topBand + frame_bottomBand;
                    vp->height -= (frame_padtop + frame_padbottom);
3487
                }
3488 3489
                has_video = 1;
                break;
3490
            default:
3491
                av_abort();
3492 3493 3494
            }
        }
    }
3495

3496 3497 3498 3499
    if (has_video == 0 && has_audio == 0) {
        fprintf(stderr, "Output file must have at least one audio or video stream\n");
        exit(1);
    }
3500

3501
    if (has_video) {
3502
        AVInputFormat *fmt1;
3503
        fmt1 = av_find_input_format(video_grab_format);
3504 3505
        vp->device  = video_device;
        vp->channel = video_channel;
3506
        vp->standard = video_standard;
3507
        vp->pix_fmt = frame_pix_fmt;
3508
        if (av_open_input_file(&ic, "", fmt1, 0, vp) < 0) {
3509
            fprintf(stderr, "Could not find video grab device\n");
3510 3511
            exit(1);
        }
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3512 3513
        /* If not enough info to get the stream parameters, we decode the
           first frames to get it. */
3514
        if ((ic->ctx_flags & AVFMTCTX_NOHEADER) && av_find_stream_info(ic) < 0) {
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romansh committed
3515 3516 3517
            fprintf(stderr, "Could not find video grab parameters\n");
            exit(1);
        }
3518
        /* by now video grab has one stream */
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3519 3520
        ic->streams[0]->r_frame_rate.num = vp->time_base.den;
        ic->streams[0]->r_frame_rate.den = vp->time_base.num;
3521
        input_files[nb_input_files] = ic;
3522 3523 3524 3525

        if (verbose >= 0)
            dump_format(ic, nb_input_files, "", 0);

3526 3527
        nb_input_files++;
    }
3528
    if (has_audio && audio_grab_format) {
3529
        AVInputFormat *fmt1;
3530
        fmt1 = av_find_input_format(audio_grab_format);
3531
        ap->device = audio_device;
3532
        if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
3533
            fprintf(stderr, "Could not find audio grab device\n");
3534 3535 3536
            exit(1);
        }
        input_files[nb_input_files] = ic;
3537 3538 3539 3540

        if (verbose >= 0)
            dump_format(ic, nb_input_files, "", 0);

3541 3542 3543 3544
        nb_input_files++;
    }
}

3545
/* same option as mencoder */
3546
static void opt_pass(const char *pass_str)
3547 3548 3549 3550 3551 3552 3553 3554 3555
{
    int pass;
    pass = atoi(pass_str);
    if (pass != 1 && pass != 2) {
        fprintf(stderr, "pass number can be only 1 or 2\n");
        exit(1);
    }
    do_pass = pass;
}
3556

3557
#if defined(__MINGW32__) || defined(CONFIG_OS2)
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3558
static int64_t getutime(void)
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3559
{
3560
  return av_gettime();
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3561
}
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3562
#else
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3563
static int64_t getutime(void)
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3564
{
3565 3566 3567 3568
    struct rusage rusage;

    getrusage(RUSAGE_SELF, &rusage);
    return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
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3569 3570
}
#endif
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3571

3572
#if defined(CONFIG_FFM_DEMUXER) || defined(CONFIG_FFM_MUXER)
3573
extern int ffm_nopts;
3574
#endif
3575

3576
static void show_formats(void)
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3577
{
3578 3579
    AVInputFormat *ifmt;
    AVOutputFormat *ofmt;
3580
    AVImageFormat *image_fmt;
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3581
    URLProtocol *up;
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3582 3583 3584 3585 3586 3587 3588 3589 3590
    AVCodec *p, *p2;
    const char **pp, *last_name;

    printf("File formats:\n");
    last_name= "000";
    for(;;){
        int decode=0;
        int encode=0;
        const char *name=NULL;
3591
        const char *long_name=NULL;
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3592 3593 3594 3595 3596

        for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) {
            if((name == NULL || strcmp(ofmt->name, name)<0) &&
                strcmp(ofmt->name, last_name)>0){
                name= ofmt->name;
3597
                long_name= ofmt->long_name;
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                encode=1;
            }
        }
        for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) {
            if((name == NULL || strcmp(ifmt->name, name)<0) &&
                strcmp(ifmt->name, last_name)>0){
                name= ifmt->name;
3605
                long_name= ifmt->long_name;
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                encode=0;
            }
            if(name && strcmp(ifmt->name, name)==0)
                decode=1;
        }
        if(name==NULL)
            break;
        last_name= name;
3614

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3615
        printf(
3616 3617 3618
            " %s%s %-15s %s\n",
            decode ? "D":" ",
            encode ? "E":" ",
3619 3620
            name,
            long_name ? long_name:" ");
3621 3622 3623
    }
    printf("\n");

3624
    printf("Image formats (filename extensions, if any, follow):\n");
3625
    for(image_fmt = first_image_format; image_fmt != NULL;
3626
        image_fmt = image_fmt->next) {
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3627
        printf(
3628
            " %s%s %-6s %s\n",
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3629 3630
            image_fmt->img_read  ? "D":" ",
            image_fmt->img_write ? "E":" ",
3631 3632
            image_fmt->name,
            image_fmt->extensions ? image_fmt->extensions:" ");
3633 3634 3635
    }
    printf("\n");

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3636
    printf("Codecs:\n");
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3637 3638 3639 3640 3641
    last_name= "000";
    for(;;){
        int decode=0;
        int encode=0;
        int cap=0;
3642
        const char *type_str;
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        p2=NULL;
        for(p = first_avcodec; p != NULL; p = p->next) {
            if((p2==NULL || strcmp(p->name, p2->name)<0) &&
                strcmp(p->name, last_name)>0){
                p2= p;
                decode= encode= cap=0;
            }
            if(p2 && strcmp(p->name, p2->name)==0){
                if(p->decode) decode=1;
                if(p->encode) encode=1;
                cap |= p->capabilities;
            }
        }
        if(p2==NULL)
            break;
        last_name= p2->name;
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        switch(p2->type) {
        case CODEC_TYPE_VIDEO:
            type_str = "V";
            break;
        case CODEC_TYPE_AUDIO:
            type_str = "A";
            break;
        case CODEC_TYPE_SUBTITLE:
            type_str = "S";
            break;
        default:
            type_str = "?";
            break;
        }
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        printf(
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            " %s%s%s%s%s%s %s",
            decode ? "D": (/*p2->decoder ? "d":*/" "),
            encode ? "E":" ",
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            type_str,
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            cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
            cap & CODEC_CAP_DR1 ? "D":" ",
            cap & CODEC_CAP_TRUNCATED ? "T":" ",
            p2->name);
       /* if(p2->decoder && decode==0)
            printf(" use %s for decoding", p2->decoder->name);*/
        printf("\n");
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    }
    printf("\n");

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    printf("Supported file protocols:\n");
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    for(up = first_protocol; up != NULL; up = up->next)
        printf(" %s:", up->name);
    printf("\n");
3694

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3695 3696
    printf("Frame size, frame rate abbreviations:\n ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
    printf("Motion estimation methods:\n");
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    pp = motion_str;
    while (*pp) {
        printf(" %s", *pp);
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        if ((pp - motion_str + 1) == ME_ZERO)
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            printf("(fastest)");
3702
        else if ((pp - motion_str + 1) == ME_FULL)
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            printf("(slowest)");
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        else if ((pp - motion_str + 1) == ME_EPZS)
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            printf("(default)");
        pp++;
    }
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    printf("\n\n");
    printf(
"Note, the names of encoders and decoders dont always match, so there are\n"
"several cases where the above table shows encoder only or decoder only entries\n"
"even though both encoding and decoding are supported for example, the h263\n"
"decoder corresponds to the h263 and h263p encoders, for file formats its even\n"
"worse\n");
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    exit(1);
}

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static void parse_matrix_coeffs(uint16_t *dest, const char *str)
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{
    int i;
    const char *p = str;
    for(i = 0;; i++) {
        dest[i] = atoi(p);
        if(i == 63)
            break;
        p = strchr(p, ',');
        if(!p) {
            fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
            exit(1);
        }
        p++;
    }
}

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static void opt_inter_matrix(const char *arg)
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{
    inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
    parse_matrix_coeffs(inter_matrix, arg);
}

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static void opt_intra_matrix(const char *arg)
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{
    intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
    parse_matrix_coeffs(intra_matrix, arg);
}

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static void opt_target(const char *arg)
{
    int norm = -1;
3750
    static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
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    if(!strncmp(arg, "pal-", 4)) {
        norm = 0;
        arg += 4;
    } else if(!strncmp(arg, "ntsc-", 5)) {
        norm = 1;
        arg += 5;
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    } else if(!strncmp(arg, "film-", 5)) {
        norm = 2;
        arg += 5;
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    } else {
        int fr;
        /* Calculate FR via float to avoid int overflow */
        fr = (int)(frame_rate * 1000.0 / frame_rate_base);
        if(fr == 25000) {
            norm = 0;
        } else if((fr == 29970) || (fr == 23976)) {
            norm = 1;
        } else {
            /* Try to determine PAL/NTSC by peeking in the input files */
            if(nb_input_files) {
                int i, j;
                for(j = 0; j < nb_input_files; j++) {
                    for(i = 0; i < input_files[j]->nb_streams; i++) {
3775
                        AVCodecContext *c = input_files[j]->streams[i]->codec;
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                        if(c->codec_type != CODEC_TYPE_VIDEO)
                            continue;
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                        fr = c->time_base.den * 1000 / c->time_base.num;
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                        if(fr == 25000) {
                            norm = 0;
                            break;
                        } else if((fr == 29970) || (fr == 23976)) {
                            norm = 1;
                            break;
                        }
                    }
                    if(norm >= 0)
                        break;
                }
            }
        }
        if(verbose && norm >= 0)
3793
            fprintf(stderr, "Assuming %s for target.\n", norm ? "NTSC" : "PAL");
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    }

    if(norm < 0) {
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        fprintf(stderr, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
        fprintf(stderr, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
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        fprintf(stderr, "or set a framerate with \"-r xxx\".\n");
        exit(1);
    }

    if(!strcmp(arg, "vcd")) {

        opt_video_codec("mpeg1video");
        opt_audio_codec("mp2");
        opt_format("vcd");

        opt_frame_size(norm ? "352x240" : "352x288");
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        opt_frame_rate(frame_rates[norm]);
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        opt_gop_size(norm ? "18" : "15");
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        video_bit_rate = 1150000;
        video_rc_max_rate = 1150000;
        video_rc_min_rate = 1150000;
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        video_rc_buffer_size = 40*1024*8;
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        audio_bit_rate = 224000;
        audio_sample_rate = 44100;
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        mux_packet_size= 2324;
        mux_rate= 2352 * 75 * 8;
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        /* We have to offset the PTS, so that it is consistent with the SCR.
           SCR starts at 36000, but the first two packs contain only padding
           and the first pack from the other stream, respectively, may also have
           been written before.
           So the real data starts at SCR 36000+3*1200. */
        mux_preload= (36000+3*1200) / 90000.0; //0.44
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    } else if(!strcmp(arg, "svcd")) {

        opt_video_codec("mpeg2video");
        opt_audio_codec("mp2");
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        opt_format("svcd");
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        opt_frame_size(norm ? "480x480" : "480x576");
3837
        opt_frame_rate(frame_rates[norm]);
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        opt_gop_size(norm ? "18" : "15");

        video_bit_rate = 2040000;
        video_rc_max_rate = 2516000;
3842
        video_rc_min_rate = 0; //1145000;
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3843
        video_rc_buffer_size = 224*1024*8;
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        opt_default("flags", "+SCAN_OFFSET");

3846 3847 3848 3849

        audio_bit_rate = 224000;
        audio_sample_rate = 44100;

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        mux_packet_size= 2324;

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    } else if(!strcmp(arg, "dvd")) {

        opt_video_codec("mpeg2video");
        opt_audio_codec("ac3");
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        opt_format("dvd");
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        opt_frame_size(norm ? "720x480" : "720x576");
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        opt_frame_rate(frame_rates[norm]);
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        opt_gop_size(norm ? "18" : "15");

        video_bit_rate = 6000000;
        video_rc_max_rate = 9000000;
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        video_rc_min_rate = 0; //1500000;
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        video_rc_buffer_size = 224*1024*8;
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        mux_packet_size= 2048;  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
        mux_rate = 10080000;    // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8

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        audio_bit_rate = 448000;
        audio_sample_rate = 48000;

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    } else if(!strncmp(arg, "dv", 2)) {
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        opt_format("dv");

        opt_frame_size(norm ? "720x480" : "720x576");
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3878 3879
        opt_frame_pix_fmt(!strncmp(arg, "dv50", 4) ? "yuv422p" :
                                             (norm ? "yuv411p" : "yuv420p"));
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        opt_frame_rate(frame_rates[norm]);

        audio_sample_rate = 48000;
        audio_channels = 2;

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    } else {
        fprintf(stderr, "Unknown target: %s\n", arg);
        exit(1);
    }
}

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static void opt_video_bsf(const char *arg)
{
    AVBitStreamFilterContext *bsfc= av_bitstream_filter_init(arg); //FIXME split name and args for filter at '='
    AVBitStreamFilterContext **bsfp;

    if(!bsfc){
        fprintf(stderr, "Unkown bitstream filter %s\n", arg);
        exit(1);
    }

    bsfp= &video_bitstream_filters;
    while(*bsfp)
        bsfp= &(*bsfp)->next;

    *bsfp= bsfc;
}

//FIXME avoid audio - video code duplication
static void opt_audio_bsf(const char *arg)
{
    AVBitStreamFilterContext *bsfc= av_bitstream_filter_init(arg); //FIXME split name and args for filter at '='
    AVBitStreamFilterContext **bsfp;

    if(!bsfc){
        fprintf(stderr, "Unkown bitstream filter %s\n", arg);
        exit(1);
    }

    bsfp= &audio_bitstream_filters;
    while(*bsfp)
        bsfp= &(*bsfp)->next;

    *bsfp= bsfc;
}

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static void show_version(void)
{
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    /* TODO: add function interface to avutil and avformat */
3929
    fprintf(stderr, "ffmpeg      " FFMPEG_VERSION "\n"
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           "libavutil   %d\n"
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           "libavcodec  %d\n"
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           "libavformat %d\n",
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           LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD);
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    exit(1);
}

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static int opt_default(const char *opt, const char *arg){
    AVOption *o= av_set_string(avctx_opts, opt, arg);
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    if(!o)
        o = av_set_string(avformat_opts, opt, arg);
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    if(!o)
        return -1;
3943

3944
//    av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avctx_opts, opt, NULL), (int)av_get_int(avctx_opts, opt, NULL));
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    //FIXME we should always use avctx_opts, ... for storing options so there wont be any need to keep track of whats set over this
    opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
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    opt_names[opt_name_count++]= o->name;
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3950
#if defined(CONFIG_FFM_DEMUXER) || defined(CONFIG_FFM_MUXER)
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    /* disable generate of real time pts in ffm (need to be supressed anyway) */
    if(avctx_opts->flags & CODEC_FLAG_BITEXACT)
        ffm_nopts = 1;
3954
#endif
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    if(avctx_opts->debug)
        av_log_set_level(AV_LOG_DEBUG);
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    return 0;
}

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3961
const OptionDef options[] = {
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    /* main options */
    { "L", 0, {(void*)show_license}, "show license" },
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    { "h", 0, {(void*)show_help}, "show help" },
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    { "version", 0, {(void*)show_version}, "show version" },
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    { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
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    { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
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    { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
    { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
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    { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream[:syncfile:syncstream]" },
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    { "map_meta_data", HAS_ARG | OPT_EXPERT, {(void*)opt_map_meta_data}, "set meta data information of outfile from infile", "outfile:infile" },
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    { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
3974
    { "fs", HAS_ARG | OPT_INT, {(void*)&limit_filesize}, "set the limit file size", "limit_size" }, //
3975
    { "ss", HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
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    { "itsoffset", HAS_ARG, {(void*)opt_input_ts_offset}, "set the input ts offset", "time_off" },
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    { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
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    { "timestamp", HAS_ARG, {(void*)&opt_rec_timestamp}, "set the timestamp", "time" },
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    { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
    { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
    { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
3982
    { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
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      "add timings for benchmarking" },
3984
    { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
3985
      "dump each input packet" },
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    { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
3987
      "when dumping packets, also dump the payload" },
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    { "re", OPT_BOOL | OPT_EXPERT, {(void*)&rate_emu}, "read input at native frame rate", "" },
3989
    { "loop_input", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "loop (current only works with images)" },
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    { "loop_output", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&loop_output}, "number of times to loop output in formats that support looping (0 loops forever)", "" },
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    { "v", HAS_ARG, {(void*)opt_verbose}, "control amount of logging", "verbose" },
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    { "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
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    { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
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    { "vsync", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_sync_method}, "video sync method", "" },
    { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
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    { "vglobal", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_global_header}, "video global header storage type", "" },
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    { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
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    { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
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    { "dts_delta_threshold", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "" },
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    /* video options */
    { "b", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
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    { "vframes", OPT_INT | HAS_ARG | OPT_VIDEO, {(void*)&max_frames[CODEC_TYPE_VIDEO]}, "set the number of video frames to record", "number" },
    { "aframes", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&max_frames[CODEC_TYPE_AUDIO]}, "set the number of audio frames to record", "number" },
    { "dframes", OPT_INT | HAS_ARG, {(void*)&max_frames[CODEC_TYPE_DATA]}, "set the number of data frames to record", "number" },
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    { "r", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_rate}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
    { "aspect", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_aspect_ratio}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
    { "croptop", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" },
    { "cropbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" },
    { "cropleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" },
    { "cropright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" },
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    { "padtop", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_pad_top}, "set top pad band size (in pixels)", "size" },
    { "padbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_pad_bottom}, "set bottom pad band size (in pixels)", "size" },
    { "padleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_pad_left}, "set left pad band size (in pixels)", "size" },
    { "padright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_pad_right}, "set right pad band size (in pixels)", "size" },
    { "padcolor", HAS_ARG | OPT_VIDEO, {(void*)opt_pad_color}, "set color of pad bands (Hex 000000 thru FFFFFF)", "color" },
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    { "g", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
    { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "use only intra frames"},
    { "vn", OPT_BOOL | OPT_VIDEO, {(void*)&video_disable}, "disable video" },
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4022
    { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
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    { "qscale", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
    { "qmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" },
    { "qmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" },
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4026 4027
    { "lmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_lmin}, "min video lagrange factor (VBR)", "lambda" },
    { "lmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_lmax}, "max video lagrange factor (VBR)", "lambda" },
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    { "mblmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_lmin}, "min macroblock quantiser scale (VBR)", "q" },
    { "mblmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_lmax}, "max macroblock quantiser scale (VBR)", "q" },
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    { "qdiff", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" },
    { "qblur", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" },
4032
    { "qsquish", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qsquish}, "how to keep quantiser between qmin and qmax (0 = clip, 1 = use differentiable function)", "squish" },
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    { "qcomp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" },
    { "rc_init_cplx", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_rc_initial_cplx}, "initial complexity for 1-pass encoding", "complexity" },
    { "b_qfactor", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_qfactor}, "qp factor between p and b frames", "factor" },
    { "i_qfactor", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_i_qfactor}, "qp factor between p and i frames", "factor" },
    { "b_qoffset", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_qoffset}, "qp offset between p and b frames", "offset" },
    { "i_qoffset", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_i_qoffset}, "qp offset between p and i frames", "offset" },
4039 4040
    { "ibias", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_ibias}, "intra quant bias", "bias" },
    { "pbias", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pbias}, "inter quant bias", "bias" },
4041
    { "rc_eq", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_eq}, "set rate control equation", "equation" },
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    { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_override_string}, "rate control override for specific intervals", "override" },
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    { "bt", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" },
    { "maxrate", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" },
    { "minrate", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" },
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    { "bufsize", HAS_ARG | OPT_VIDEO, {(void*)opt_video_buffer_size}, "set ratecontrol buffer size (in kByte)", "size" },
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    { "vcodec", HAS_ARG | OPT_VIDEO, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
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    { "me", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_motion_estimation}, "set motion estimation method",
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      "method" },
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    { "me_threshold", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_me_threshold}, "motion estimaton threshold",  "" },
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    { "mb_threshold", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_threshold}, "macroblock threshold",  "" },
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    { "bf", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_frames}, "use 'frames' B frames", "frames" },
4053
    { "preme", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_me}, "pre motion estimation", "" },
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    { "bug", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" },
    { "ps", HAS_ARG | OPT_EXPERT, {(void*)opt_packet_size}, "set packet size in bits", "size" },
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    { "error", HAS_ARG | OPT_EXPERT, {(void*)opt_error_rate}, "error rate", "rate" },
4057
    { "strict", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_strict}, "how strictly to follow the standards", "strictness" },
4058
    { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quality},
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      "use same video quality as source (implies VBR)" },
    { "pass", HAS_ARG | OPT_VIDEO, {(void*)&opt_pass}, "select the pass number (1 or 2)", "n" },
    { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename}, "select two pass log file name", "file" },
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    { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace},
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      "deinterlace pictures" },
    { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
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    { "vstats", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_vstats}, "dump video coding statistics to file" },
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    { "vhook", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)add_frame_hooker}, "insert video processing module", "module" },
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    { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_intra_matrix}, "specify intra matrix coeffs", "matrix" },
    { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_inter_matrix}, "specify inter matrix coeffs", "matrix" },
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    { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_top_field_first}, "top=1/bottom=0/auto=-1 field first", "" },
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    { "sc_threshold", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_sc_threshold}, "scene change threshold", "threshold" },
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    { "me_range", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_me_range}, "limit motion vectors range (1023 for DivX player)", "range" },
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    { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
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    { "mepc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&me_penalty_compensation}, "motion estimation bitrate penalty compensation", "factor (1.0 = 256)" },
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    { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_tag}, "force video tag/fourcc", "fourcc/tag" },
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    { "skip_threshold", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&frame_skip_threshold}, "frame skip threshold", "threshold" },
    { "skip_factor", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&frame_skip_factor}, "frame skip factor", "factor" },
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    { "skip_exp", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&frame_skip_exp}, "frame skip exponent", "exponent" },
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    { "newvideo", OPT_VIDEO, {(void*)opt_new_video_stream}, "add a new video stream to the current output stream" },
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    { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
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    /* audio options */
    { "ab", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
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    { "aq", OPT_FLOAT | HAS_ARG | OPT_AUDIO, {(void*)&audio_qscale}, "set audio quality (codec-specific)", "quality", },
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    { "ar", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
    { "ac", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
    { "an", OPT_BOOL | OPT_AUDIO, {(void*)&audio_disable}, "disable audio" },
    { "acodec", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
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    { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO, {(void*)opt_audio_tag}, "force audio tag/fourcc", "fourcc/tag" },
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    { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
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    { "newaudio", OPT_AUDIO, {(void*)opt_new_audio_stream}, "add a new audio stream to the current output stream" },
    { "alang", HAS_ARG | OPT_STRING | OPT_AUDIO, {(void *)&audio_language}, "set the ISO 639 language code (3 letters) of the current audio stream" , "code" },
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    /* subtitle options */
    { "scodec", HAS_ARG | OPT_SUBTITLE, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
    { "newsubtitle", OPT_SUBTITLE, {(void*)opt_new_subtitle_stream}, "add a new subtitle stream to the current output stream" },
    { "slang", HAS_ARG | OPT_STRING | OPT_SUBTITLE, {(void *)&subtitle_language}, "set the ISO 639 language code (3 letters) of the current subtitle stream" , "code" },
4097

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    /* grab options */
    { "vd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_device}, "set video grab device", "device" },
    { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "set video grab channel (DV1394 only)", "channel" },
    { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "set television standard (NTSC, PAL (SECAM))", "standard" },
    { "ad", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_GRAB, {(void*)opt_audio_device}, "set audio device", "device" },
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4103

4104
    /* G.2 grab options */
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    { "grab", HAS_ARG | OPT_EXPERT | OPT_GRAB, {(void*)opt_grab}, "request grabbing using", "format" },
    { "gd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_grab_device}, "set grab device", "device" },
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    /* muxer options */
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    { "muxrate", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&mux_rate}, "set mux rate", "rate" },
    { "packetsize", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&mux_packet_size}, "set packet size", "size" },
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    { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_max_delay}, "set the maximum demux-decode delay", "seconds" },
    { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_preload}, "set the initial demux-decode delay", "seconds" },
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    { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT, {(void*)opt_audio_bsf}, "", "bitstream filter" },
    { "vbsf", HAS_ARG | OPT_VIDEO | OPT_EXPERT, {(void*)opt_video_bsf}, "", "bitstream filter" },

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4117
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
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4118 4119 4120
    { NULL, },
};

4121 4122
static void show_banner(void)
{
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4123 4124
    fprintf(stderr, "FFmpeg version " FFMPEG_VERSION ", Copyright (c) 2000-2004 Fabrice Bellard\n");
    fprintf(stderr, "  configuration: " FFMPEG_CONFIGURATION "\n");
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4125
    fprintf(stderr, "  libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
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    fprintf(stderr, "  libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
    fprintf(stderr, "  libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
4128
    fprintf(stderr, "  built on " __DATE__ " " __TIME__);
4129
#ifdef __GNUC__
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4130
    fprintf(stderr, ", gcc: " __VERSION__ "\n");
4131
#else
4132
    fprintf(stderr, ", using a non-gcc compiler\n");
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#endif
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}

static void show_license(void)
{
    show_banner();
4139
#ifdef CONFIG_GPL
4140
    printf(
4141
    "This program is free software; you can redistribute it and/or modify\n"
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    "it under the terms of the GNU General Public License as published by\n"
    "the Free Software Foundation; either version 2 of the License, or\n"
    "(at your option) any later version.\n"
    "\n"
    "This program is distributed in the hope that it will be useful,\n"
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
    "GNU General Public License for more details.\n"
    "\n"
    "You should have received a copy of the GNU General Public License\n"
    "along with this program; if not, write to the Free Software\n"
4153
    "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n"
4154
    );
4155
#else
4156
    printf(
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    "This library is free software; you can redistribute it and/or\n"
    "modify it under the terms of the GNU Lesser General Public\n"
    "License as published by the Free Software Foundation; either\n"
    "version 2 of the License, or (at your option) any later version.\n"
    "\n"
    "This library is distributed in the hope that it will be useful,\n"
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n"
    "Lesser General Public License for more details.\n"
    "\n"
    "You should have received a copy of the GNU Lesser General Public\n"
    "License along with this library; if not, write to the Free Software\n"
4169
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
4170
    );
4171
#endif
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    exit(1);
}

static void show_help(void)
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4176
{
4177
    show_banner();
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4178
    printf("usage: ffmpeg [[infile options] -i infile]... {[outfile options] outfile}...\n"
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           "Hyper fast Audio and Video encoder\n");
    printf("\n");
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    show_help_options(options, "Main options:\n",
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO, 0);
    show_help_options(options, "\nVideo options:\n",
4184
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
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                      OPT_VIDEO);
    show_help_options(options, "\nAdvanced Video options:\n",
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                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
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                      OPT_VIDEO | OPT_EXPERT);
    show_help_options(options, "\nAudio options:\n",
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                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
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                      OPT_AUDIO);
    show_help_options(options, "\nAdvanced Audio options:\n",
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                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
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                      OPT_AUDIO | OPT_EXPERT);
4195
    show_help_options(options, "\nSubtitle options:\n",
4196
                      OPT_SUBTITLE | OPT_GRAB,
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                      OPT_SUBTITLE);
4198
    show_help_options(options, "\nAudio/Video grab options:\n",
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                      OPT_GRAB,
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                      OPT_GRAB);
    show_help_options(options, "\nAdvanced options:\n",
4202
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4203
                      OPT_EXPERT);
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4204
    av_opt_show(avctx_opts, NULL);
4205
    av_opt_show(avformat_opts, NULL);
4206

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    exit(1);
}

void parse_arg_file(const char *filename)
{
    opt_output_file(filename);
}

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int main(int argc, char **argv)
{
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4217
    int i;
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4218
    int64_t ti;
4219

4220
    av_register_all();
4221

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4222
    avctx_opts= avcodec_alloc_context();
4223
    avformat_opts = av_alloc_format_context();
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    if (argc <= 1)
        show_help();
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    else
        show_banner();
4229

4230
    /* parse options */
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4231
    parse_options(argc, argv, options);
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4232

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    /* file converter / grab */
    if (nb_output_files <= 0) {
        fprintf(stderr, "Must supply at least one output file\n");
        exit(1);
    }
4238

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bellard committed
4239
    if (nb_input_files == 0) {
4240
        input_sync = 1;
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4241
        prepare_grab();
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    }

    ti = getutime();
4245
    av_encode(output_files, nb_output_files, input_files, nb_input_files,
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              stream_maps, nb_stream_maps);
    ti = getutime() - ti;
    if (do_benchmark) {
        printf("bench: utime=%0.3fs\n", ti / 1000000.0);
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    }

    /* close files */
    for(i=0;i<nb_output_files;i++) {
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        /* maybe av_close_output_file ??? */
        AVFormatContext *s = output_files[i];
4256
        int j;
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4257
        if (!(s->oformat->flags & AVFMT_NOFILE))
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            url_fclose(&s->pb);
        for(j=0;j<s->nb_streams;j++)
            av_free(s->streams[j]);
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4261
        av_free(s);
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4262
    }
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    for(i=0;i<nb_input_files;i++)
        av_close_input_file(input_files[i]);
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4265

4266
    av_free_static();
4267

4268 4269 4270 4271
    if(intra_matrix)
        av_free(intra_matrix);
    if(inter_matrix)
        av_free(inter_matrix);
4272

4273
#ifdef POWERPC_PERFORMANCE_REPORT
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    extern void powerpc_display_perf_report(void);
    powerpc_display_perf_report();
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#endif /* POWERPC_PERFORMANCE_REPORT */
4277

4278
#ifndef __MINGW32__
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    if (received_sigterm) {
        fprintf(stderr,
            "Received signal %d: terminating.\n",
            (int) received_sigterm);
        exit (255);
    }
#endif
    exit(0); /* not all OS-es handle main() return value */
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    return 0;
}