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 "framehook.h"
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#include "dsputil.h"
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#include "opt.h"
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#ifndef CONFIG_WIN32
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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 "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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extern int loop_input; /* currently a hack */
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static int loop_output = AVFMT_NOOUTPUTLOOP;
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static int genpts = 0;
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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
static char *video_grab_format = "bktr";
#else
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#ifdef CONFIG_VIDEO4LINUX2
static char *video_grab_format = "video4linux2";
#else
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static 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 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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const char **opt_names=NULL;
int opt_name_count=0;
AVCodecContext *avctx_opts;

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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;      /* video_resample and video_crop are mutually exclusive */
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    AVFrame pict_tmp;      /* temporary image for resampling */
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    ImgReSampleContext *img_resample_ctx; /* for image resampling */
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    int video_crop;          /* video_resample and video_crop are mutually exclusive */
    int topBand;             /* cropping area sizes */
    int leftBand;
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    int video_pad;           /* video_resample and video_pad are mutually exclusive */
    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 CONFIG_WIN32

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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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#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 */
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    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;
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            av_interleaved_write_frame(s, &pkt);
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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;
        }
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        ret = avcodec_encode_audio(enc, audio_out, size_out,
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                                   (short *)buftmp);
586
        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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        av_interleaved_write_frame(s, &pkt);
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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 {
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            if (img_convert(picture2, dec->pix_fmt, picture,
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                            dec->pix_fmt, dec->width, dec->height) < 0) {
                /* if error, do not copy */
                av_free(buf);
                buf = NULL;
                picture2 = picture;
            }
        }
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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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/* Expects img to be yuv420 */
static void fill_pad_region(AVPicture* img, int height, int width,
        int padtop, int padbottom, int padleft, int padright, int *color) {
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    int i, y, shift;
    uint8_t *optr;
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    for (i = 0; i < 3; i++) {
        shift = (i == 0) ? 0 : 1;
660

661
        if (padtop || padleft) {
662
            memset(img->data[i], color[i], (((img->linesize[i] * padtop) +
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                            padleft) >> shift));
        }

        if (padleft || padright) {
            optr = img->data[i] + (img->linesize[i] * (padtop >> shift)) +
                (img->linesize[i] - (padright >> shift));

670
            for (y = 0; y < ((height - (padtop + padbottom) - 1) >> shift); y++) {
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                memset(optr, color[i], (padleft + padright) >> shift);
                optr += img->linesize[i];
            }
        }
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        if (padbottom || padright) {
            optr = img->data[i] + (((img->linesize[i] * (height - padbottom)) - padright) >> shift);
            memset(optr, color[i], (((img->linesize[i] * padbottom) + padright) >> shift));
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        }
    }
}

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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;
    }

700
    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;
        }
        av_interleaved_write_frame(s, &pkt);
    }
}

735
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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{
744
    int nb_frames, i, ret;
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    AVFrame *final_picture, *formatted_picture;
    AVFrame picture_format_temp, picture_crop_temp;
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    uint8_t *buf = NULL, *buf1 = NULL;
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    AVCodecContext *enc, *dec;
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    enum PixelFormat target_pixfmt;
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    avcodec_get_frame_defaults(&picture_format_temp);
    avcodec_get_frame_defaults(&picture_crop_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;
777
            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);
784
    if (nb_frames <= 0)
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        return;
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787
    /* convert pixel format if needed */
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    target_pixfmt = ost->video_resample || ost->video_pad
        ? PIX_FMT_YUV420P : enc->pix_fmt;
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    if (dec->pix_fmt != target_pixfmt) {
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        int size;

        /* create temporary picture */
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        size = avpicture_get_size(target_pixfmt, dec->width, dec->height);
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        buf = av_malloc(size);
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        if (!buf)
            return;
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        formatted_picture = &picture_format_temp;
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        avpicture_fill((AVPicture*)formatted_picture, buf, target_pixfmt, dec->width, dec->height);
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        if (img_convert((AVPicture*)formatted_picture, target_pixfmt,
                        (AVPicture *)in_picture, dec->pix_fmt,
803
                        dec->width, dec->height) < 0) {
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            if (verbose >= 0)
                fprintf(stderr, "pixel format conversion not handled\n");

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            goto the_end;
        }
    } else {
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        formatted_picture = in_picture;
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    }

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    /* XXX: resampling could be done before raw format conversion in
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       some cases to go faster */
    /* XXX: only works for YUV420P */
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    if (ost->video_resample) {
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        final_picture = &ost->pict_tmp;
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        img_resample(ost->img_resample_ctx, (AVPicture*)final_picture, (AVPicture*)formatted_picture);
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        if (ost->padtop || ost->padbottom || ost->padleft || ost->padright) {
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            fill_pad_region((AVPicture*)final_picture, enc->height, enc->width,
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                    ost->padtop, ost->padbottom, ost->padleft, ost->padright,
                    padcolor);
        }
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        if (enc->pix_fmt != PIX_FMT_YUV420P) {
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            int size;
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            av_free(buf);
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            /* create temporary picture */
            size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height);
            buf = av_malloc(size);
            if (!buf)
                return;
            final_picture = &picture_format_temp;
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            avpicture_fill((AVPicture*)final_picture, buf, enc->pix_fmt, enc->width, enc->height);
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            if (img_convert((AVPicture*)final_picture, enc->pix_fmt,
                            (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
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841
                            enc->width, enc->height) < 0) {
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                if (verbose >= 0)
                    fprintf(stderr, "pixel format conversion not handled\n");

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                goto the_end;
            }
848
        }
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    } else if (ost->video_crop) {
        picture_crop_temp.data[0] = formatted_picture->data[0] +
                (ost->topBand * formatted_picture->linesize[0]) + ost->leftBand;

        picture_crop_temp.data[1] = formatted_picture->data[1] +
                ((ost->topBand >> 1) * formatted_picture->linesize[1]) +
                (ost->leftBand >> 1);

        picture_crop_temp.data[2] = formatted_picture->data[2] +
                ((ost->topBand >> 1) * formatted_picture->linesize[2]) +
                (ost->leftBand >> 1);

        picture_crop_temp.linesize[0] = formatted_picture->linesize[0];
        picture_crop_temp.linesize[1] = formatted_picture->linesize[1];
        picture_crop_temp.linesize[2] = formatted_picture->linesize[2];
        final_picture = &picture_crop_temp;
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    } else if (ost->video_pad) {
        final_picture = &ost->pict_tmp;

        for (i = 0; i < 3; i++) {
            uint8_t *optr, *iptr;
            int shift = (i == 0) ? 0 : 1;
            int y, yheight;
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            /* set offset to start writing image into */
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            optr = final_picture->data[i] + (((final_picture->linesize[i] *
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                            ost->padtop) + ost->padleft) >> shift);
            iptr = formatted_picture->data[i];

            yheight = (enc->height - ost->padtop - ost->padbottom) >> shift;
            for (y = 0; y < yheight; y++) {
                /* copy unpadded image row into padded image row */
                memcpy(optr, iptr, formatted_picture->linesize[i]);
                optr += final_picture->linesize[i];
                iptr += formatted_picture->linesize[i];
            }
        }

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        fill_pad_region((AVPicture*)final_picture, enc->height, enc->width,
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                ost->padtop, ost->padbottom, ost->padleft, ost->padright,
                padcolor);
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        if (enc->pix_fmt != PIX_FMT_YUV420P) {
            int size;

            av_free(buf);
            /* create temporary picture */
            size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height);
            buf = av_malloc(size);
            if (!buf)
                return;
            final_picture = &picture_format_temp;
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            avpicture_fill((AVPicture*)final_picture, buf, enc->pix_fmt, enc->width, enc->height);
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            if (img_convert((AVPicture*)final_picture, enc->pix_fmt,
                        (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
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                        enc->width, enc->height) < 0) {
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                if (verbose >= 0)
                    fprintf(stderr, "pixel format conversion not handled\n");

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                goto the_end;
            }
        }
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    } else {
914
        final_picture = formatted_picture;
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    }
    /* duplicates frame if needed */
917
    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;

935
            av_interleaved_write_frame(s, &pkt);
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            enc->coded_frame = old_frame;
937
        } 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;
944
            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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            }
950

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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);
963
            ret = avcodec_encode_video(enc,
964
                                       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;
969
                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);
972
/*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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                av_interleaved_write_frame(s, &pkt);
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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);
                }
987
            }
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        }
989
        ost->sync_opts++;
990
        ost->frame_number++;
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    }
992
 the_end:
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    av_free(buf);
    av_free(buf1);
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}

997 998
static double psnr(double d){
    if(d==0) return INFINITY;
999
    return -10.0*log(d)/log(10.0);
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}

1002
static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1003
                           int frame_size)
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{
    static FILE *fvstats=NULL;
    char filename[40];
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    time_t today2;
    struct tm *today;
1009 1010
    AVCodecContext *enc;
    int frame_number;
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1011
    int64_t ti;
1012
    double ti1, bitrate, avg_bitrate;
1013

1014 1015 1016
    if (!fvstats) {
        today2 = time(NULL);
        today = localtime(&today2);
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1017
        snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour,
1018 1019 1020 1021 1022 1023 1024 1025
                                               today->tm_min,
                                               today->tm_sec);
        fvstats = fopen(filename,"w");
        if (!fvstats) {
            perror("fopen");
            exit(1);
        }
    }
1026

1027
    ti = MAXINT64;
1028
    enc = ost->st->codec;
1029
    if (enc->codec_type == CODEC_TYPE_VIDEO) {
1030
        frame_number = ost->frame_number;
1031
        fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1032
        if (enc->flags&CODEC_FLAG_PSNR)
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1033
            fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1034

1035
        fprintf(fvstats,"f_size= %6d ", frame_size);
1036
        /* compute pts value */
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1037
        ti1 = ost->sync_opts * av_q2d(enc->time_base);
1038 1039
        if (ti1 < 0.01)
            ti1 = 0.01;
1040

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1041
        bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1042
        avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1043
        fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1044
            (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1045
        fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1046
    }
1047 1048
}

1049
static void print_report(AVFormatContext **output_files,
1050 1051
                         AVOutputStream **ost_table, int nb_ostreams,
                         int is_last_report)
1052 1053 1054 1055
{
    char buf[1024];
    AVOutputStream *ost;
    AVFormatContext *oc, *os;
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1056
    int64_t total_size;
1057 1058 1059
    AVCodecContext *enc;
    int frame_number, vid, i;
    double bitrate, ti1, pts;
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1060
    static int64_t last_time = -1;
1061
    static int qp_histogram[52];
1062

1063
    if (!is_last_report) {
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1064
        int64_t cur_time;
1065 1066 1067 1068 1069
        /* display the report every 0.5 seconds */
        cur_time = av_gettime();
        if (last_time == -1) {
            last_time = cur_time;
            return;
1070
        }
1071 1072 1073 1074 1075
        if ((cur_time - last_time) < 500000)
            return;
        last_time = cur_time;
    }

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1077 1078 1079
    oc = output_files[0];

    total_size = url_ftell(&oc->pb);
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1081 1082 1083 1084 1085 1086
    buf[0] = '\0';
    ti1 = 1e10;
    vid = 0;
    for(i=0;i<nb_ostreams;i++) {
        ost = ost_table[i];
        os = output_files[ost->file_index];
1087
        enc = ost->st->codec;
1088
        if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1089
            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1090
                    enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1091
        }
1092 1093
        if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
            frame_number = ost->frame_number;
1094 1095
            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);
1096
            if(is_last_report)
1097
                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'};
1111
                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;
1123
                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1124
                }
1125
                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1126
            }
1127 1128 1129
            vid = 1;
        }
        /* compute min output value */
1130
        pts = (double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den;
1131
        if ((pts < ti1) && (pts > 0))
1132 1133 1134 1135
            ti1 = pts;
    }
    if (ti1 < 0.01)
        ti1 = 0.01;
1136

1137 1138
    if (verbose || is_last_report) {
        bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1139 1140

        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1141 1142
            "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
            (double)total_size / 1024, ti1, bitrate);
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1143

1144 1145 1146
        if (verbose > 1)
          snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
                  nb_frames_dup, nb_frames_drop);
1147

1148 1149 1150
        if (verbose >= 0)
            fprintf(stderr, "%s    \r", buf);

1151 1152
        fflush(stderr);
    }
1153

1154 1155
    if (is_last_report && verbose >= 0){
        int64_t raw= audio_size + video_size + extra_size;
1156
        fprintf(stderr, "\n");
1157 1158 1159 1160 1161 1162 1163
        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
        );
    }
1164 1165
}

1166 1167 1168
/* pkt = NULL means EOF (needed to flush decoder buffers) */
static int output_packet(AVInputStream *ist, int ist_index,
                         AVOutputStream **ost_table, int nb_ostreams,
1169
                         const AVPacket *pkt)
1170 1171 1172 1173 1174 1175 1176 1177 1178
{
    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;
1179
    static unsigned int samples_size= 0;
1180
    static short *samples= NULL;
1181 1182
    AVSubtitle subtitle, *subtitle_to_free;
    int got_subtitle;
1183

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1184 1185 1186
    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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1187
        ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1188
    } else {
1189
//        assert(ist->pts == ist->next_pts);
1190
    }
1191

1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205
    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;
1206
        subtitle_to_free = NULL;
1207
        if (ist->decoding_needed) {
1208
            switch(ist->st->codec->codec_type) {
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1209
            case CODEC_TYPE_AUDIO:{
1210
                if(pkt)
1211
                    samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size, AVCODEC_MAX_AUDIO_FRAME_SIZE));
1212 1213
                    /* XXX: could avoid copy if PCM 16 bits with same
                       endianness as CPU */
1214
                ret = avcodec_decode_audio(ist->st->codec, samples, &data_size,
1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226
                                           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;
1227
                ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1228
                    (ist->st->codec->sample_rate * ist->st->codec->channels);
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1229
                break;}
1230
            case CODEC_TYPE_VIDEO:
1231
                    data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1232
                    /* XXX: allocate picture correctly */
1233 1234
                    avcodec_get_frame_defaults(&picture);

1235
                    ret = avcodec_decode_video(ist->st->codec,
1236 1237
                                               &picture, &got_picture, ptr, len);
                    ist->st->quality= picture.quality;
1238
                    if (ret < 0)
1239 1240 1241 1242 1243
                        goto fail_decode;
                    if (!got_picture) {
                        /* no picture yet */
                        goto discard_packet;
                    }
1244
                    if (ist->st->codec->time_base.num != 0) {
1245
                        ist->next_pts += ((int64_t)AV_TIME_BASE *
1246 1247
                                          ist->st->codec->time_base.num) /
                            ist->st->codec->time_base.den;
1248 1249 1250
                    }
                    len = 0;
                    break;
1251
            case CODEC_TYPE_SUBTITLE:
1252
                ret = avcodec_decode_subtitle(ist->st->codec,
1253 1254
                                              &subtitle, &got_subtitle, ptr, len);
                if (ret < 0)
1255
                    goto fail_decode;
1256 1257
                if (!got_subtitle) {
                    goto discard_packet;
1258
                }
1259 1260 1261 1262 1263 1264 1265
                subtitle_to_free = &subtitle;
                len = 0;
                break;
            default:
                goto fail_decode;
            }
        } else {
1266
                switch(ist->st->codec->codec_type) {
1267
                case CODEC_TYPE_AUDIO:
1268
                    ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1269
                        (ist->st->codec->sample_rate * ist->st->codec->channels);
1270 1271
                    break;
                case CODEC_TYPE_VIDEO:
1272
                    if (ist->st->codec->time_base.num != 0) {
1273
                        ist->next_pts += ((int64_t)AV_TIME_BASE *
1274 1275
                                          ist->st->codec->time_base.num) /
                            ist->st->codec->time_base.den;
1276 1277 1278
                    }
                    break;
                }
1279 1280 1281 1282 1283 1284 1285
                data_buf = ptr;
                data_size = len;
                ret = len;
                len = 0;
            }

            buffer_to_free = NULL;
1286
            if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1287
                pre_process_video_frame(ist, (AVPicture *)&picture,
1288 1289 1290
                                        &buffer_to_free);
            }

1291
            // preprocess audio (volume)
1292
            if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1293
                if (audio_volume != 256) {
1294 1295 1296
                    short *volp;
                    volp = samples;
                    for(i=0;i<(data_size / sizeof(short));i++) {
1297
                        int v = ((*volp) * audio_volume + 128) >> 8;
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                        if (v < -32768) v = -32768;
                        if (v >  32767) v = 32767;
                        *volp++ = v;
                    }
                }
            }

1305
            /* frame rate emulation */
1306 1307
            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);
1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318
                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 ? */
1319 1320
            if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
                if (ist->st->codec->pict_type != B_TYPE) {
1321 1322 1323 1324 1325 1326 1327
                    int64_t tmp;
                    tmp = ist->last_ip_pts;
                    ist->last_ip_pts  = ist->frac_pts.val;
                    ist->frac_pts.val = tmp;
                }
            }
#endif
1328
            /* if output time reached then transcode raw format,
1329
               encode packets and output them */
1330 1331 1332 1333 1334 1335 1336 1337 1338
            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
1339 1340 1341
                        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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1342
                               ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1343 1344
#endif
                        /* set the input output pts pairs */
1345
                        //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1346 1347

                        if (ost->encoding_needed) {
1348
                            switch(ost->st->codec->codec_type) {
1349 1350 1351 1352
                            case CODEC_TYPE_AUDIO:
                                do_audio_out(os, ost, ist, data_buf, data_size);
                                break;
                            case CODEC_TYPE_VIDEO:
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1353
                                    do_video_out(os, ost, ist, &picture, &frame_size);
1354
                                    video_size += frame_size;
1355 1356 1357
                                    if (do_vstats && frame_size)
                                        do_video_stats(os, ost, frame_size);
                                break;
1358 1359 1360 1361
                            case CODEC_TYPE_SUBTITLE:
                                do_subtitle_out(os, ost, ist, &subtitle,
                                                pkt->pts);
                                break;
1362 1363 1364 1365
                            default:
                                av_abort();
                            }
                        } else {
1366 1367 1368 1369
                            AVFrame avframe; //FIXME/XXX remove this
                            AVPacket opkt;
                            av_init_packet(&opkt);

1370 1371
                            /* no reencoding needed : output the packet directly */
                            /* force the input stream PTS */
1372

1373
                            avcodec_get_frame_defaults(&avframe);
1374
                            ost->st->codec->coded_frame= &avframe;
1375
                            avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
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1376

1377
                            if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
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1378
                                audio_size += data_size;
1379
                            else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
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1380
                                video_size += data_size;
1381 1382
                                ost->sync_opts++;
                            }
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1383

1384
                            opkt.stream_index= ost->index;
1385
                            if(pkt->pts != AV_NOPTS_VALUE)
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1386
                                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);
1387 1388
                            else
                                opkt.pts= AV_NOPTS_VALUE;
1389 1390 1391 1392 1393 1394 1395 1396 1397

                            {
                                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);
                            }
1398
                            opkt.flags= pkt->flags;
1399
                            if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1400
                                opkt.destruct= av_destruct_packet;
1401
                            av_interleaved_write_frame(os, &opkt);
1402
                            ost->st->codec->frame_number++;
1403
                            ost->frame_number++;
1404
                            av_free_packet(&opkt);
1405 1406 1407 1408
                        }
                    }
                }
            av_free(buffer_to_free);
1409 1410
            /* XXX: allocate the subtitles in the codec ? */
            if (subtitle_to_free) {
1411 1412 1413 1414 1415 1416 1417 1418
                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;
1419 1420
                subtitle_to_free = NULL;
            }
1421 1422
        }
 discard_packet:
1423 1424
    if (pkt == NULL) {
        /* EOF handling */
1425

1426 1427 1428
        for(i=0;i<nb_ostreams;i++) {
            ost = ost_table[i];
            if (ost->source_index == ist_index) {
1429
                AVCodecContext *enc= ost->st->codec;
1430
                os = output_files[ost->file_index];
1431

1432
                if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1433
                    continue;
1434
                if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1435 1436 1437 1438 1439 1440 1441
                    continue;

                if (ost->encoding_needed) {
                    for(;;) {
                        AVPacket pkt;
                        av_init_packet(&pkt);
                        pkt.stream_index= ost->index;
1442

1443
                        switch(ost->st->codec->codec_type) {
1444
                        case CODEC_TYPE_AUDIO:
1445
                            ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1446 1447 1448 1449
                            audio_size += ret;
                            pkt.flags |= PKT_FLAG_KEY;
                            break;
                        case CODEC_TYPE_VIDEO:
1450
                            ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1451 1452 1453 1454 1455 1456 1457 1458 1459 1460
                            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;
                        }
1461

1462 1463
                        if(ret<=0)
                            break;
1464
                        pkt.data= bit_buffer;
1465
                        pkt.size= ret;
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1466
                        if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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1467
                            pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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                        av_interleaved_write_frame(os, &pkt);
                    }
                }
            }
        }
    }
1474

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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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1490
    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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glantau committed
1495
    AVInputFile *file_table;
1496
    AVFormatContext *stream_no_data;
1497
    int key;
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1498

1499
    file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
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    if (!file_table)
        goto fail;
1502

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glantau committed
1503 1504 1505 1506 1507
    /* input stream init */
    j = 0;
    for(i=0;i<nb_input_files;i++) {
        is = input_files[i];
        file_table[i].ist_index = j;
1508
        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;
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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) */
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1534
            if (ist->st->codec->rate_emu) {
1535 1536 1537
                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);
    }

1552 1553 1554 1555
    /* 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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        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);
        }
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        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);
        }
1569
    }
1570

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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;
    }
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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) {
1591
                ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
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                    stream_maps[n-1].stream_index;
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                /* Sanity check that the stream types match */
1595
                if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
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                    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);
                }
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            } 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];
1607
                    if (ist->discard &&
1608
                        ist->st->codec->codec_type == ost->st->codec->codec_type) {
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                        ost->source_index = j;
                        found = 1;
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                        break;
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                    }
                }
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                if (!found) {
                    /* try again and reuse existing stream */
                    for(j=0;j<nb_istreams;j++) {
                        ist = ist_table[j];
1619
                        if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
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                            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;
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            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];

1644 1645
        codec = ost->st->codec;
        icodec = ist->st->codec;
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1647 1648 1649 1650
        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;
1652
            codec->bit_rate = icodec->bit_rate;
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            codec->extradata= icodec->extradata;
            codec->extradata_size= icodec->extradata_size;
1655
            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:
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                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;
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                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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                if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
                    goto fail;
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                if (codec->channels == icodec->channels &&
                    codec->sample_rate == icodec->sample_rate) {
                    ost->audio_resample = 0;
                } else {
1684
                    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 */
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                        /* 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;
                        }
1696
                    } else {
1697
                        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();
1709
                    }
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                }
                ist->decoding_needed = 1;
                ost->encoding_needed = 1;
1713 1714
                break;
            case CODEC_TYPE_VIDEO:
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1715
                if (codec->width == icodec->width &&
1716 1717 1718 1719
                    codec->height == icodec->height &&
                    frame_topBand == 0 &&
                    frame_bottomBand == 0 &&
                    frame_leftBand == 0 &&
1720
                    frame_rightBand == 0 &&
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                    frame_padtop == 0 &&
                    frame_padbottom == 0 &&
                    frame_padleft == 0 &&
                    frame_padright == 0)
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                {
                    ost->video_resample = 0;
                    ost->video_crop = 0;
1728
                    ost->video_pad = 0;
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                } else if ((codec->width == icodec->width -
                                (frame_leftBand + frame_rightBand)) &&
                        (codec->height == icodec->height -
                                (frame_topBand  + frame_bottomBand)))
                {
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                    ost->video_resample = 0;
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                    ost->video_crop = 1;
                    ost->topBand = frame_topBand;
                    ost->leftBand = frame_leftBand;
1738
                } else if ((codec->width == icodec->width +
1739 1740 1741 1742 1743 1744 1745 1746 1747 1748
                                (frame_padleft + frame_padright)) &&
                        (codec->height == icodec->height +
                                (frame_padtop + frame_padbottom))) {
                    ost->video_resample = 0;
                    ost->video_crop = 0;
                    ost->video_pad = 1;
                    ost->padtop = frame_padtop;
                    ost->padleft = frame_padleft;
                    ost->padbottom = frame_padbottom;
                    ost->padright = frame_padright;
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                    avcodec_get_frame_defaults(&ost->pict_tmp);
1750
                    if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
1751 1752
                                codec->width, codec->height ) )
                        goto fail;
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                } else {
                    ost->video_resample = 1;
1755
                    ost->video_crop = 0; // cropping is handled as part of resample
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                    avcodec_get_frame_defaults(&ost->pict_tmp);
1757
                    if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
1758
                                         codec->width, codec->height ) )
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                        goto fail;

1761
                    ost->img_resample_ctx = img_resample_full_init(
1762 1763
                                      codec->width, codec->height,
                                      icodec->width, icodec->height,
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                                      frame_topBand, frame_bottomBand,
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                            frame_leftBand, frame_rightBand,
                            frame_padtop, frame_padbottom,
1767
                            frame_padleft, frame_padright);
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                    ost->padtop = frame_padtop;
                    ost->padleft = frame_padleft;
                    ost->padbottom = frame_padbottom;
                    ost->padright = frame_padright;
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                }
                ost->encoding_needed = 1;
                ist->decoding_needed = 1;
1777
                break;
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            case CODEC_TYPE_SUBTITLE:
                ost->encoding_needed = 1;
                ist->decoding_needed = 1;
                break;
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            default:
                av_abort();
1784
                break;
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1785
            }
1786
            /* two pass mode */
1787
            if (ost->encoding_needed &&
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                (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
                char logfilename[1024];
                FILE *f;
                int size;
                char *logbuffer;
1793 1794 1795

                snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
                         pass_logfilename ?
1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818
                         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);
                    }
1819
                    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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    }

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    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 */
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    if (verbose >= 0) {
        fprintf(stderr, "Stream mapping:\n");
        for(i=0;i<nb_ostreams;i++) {
            ost = ost_table[i];
1848
            fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
1849 1850
                    ist_table[ost->source_index]->file_index,
                    ist_table[ost->source_index]->index,
1851
                    ost->file_index,
1852
                    ost->index);
1853 1854 1855 1856 1857
            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");
1858
        }
1859 1860
    }

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    /* open each encoder */
    for(i=0;i<nb_ostreams;i++) {
        ost = ost_table[i];
        if (ost->encoding_needed) {
            AVCodec *codec;
1866
            codec = avcodec_find_encoder(ost->st->codec->codec_id);
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1867
            if (!codec) {
1868
                fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
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1869 1870 1871
                        ost->file_index, ost->index);
                exit(1);
            }
1872
            if (avcodec_open(ost->st->codec, codec) < 0) {
1873
                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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1874 1875 1876
                        ost->file_index, ost->index);
                exit(1);
            }
1877
            extra_size += ost->st->codec->extradata_size;
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        }
    }

    /* open each decoder */
    for(i=0;i<nb_istreams;i++) {
        ist = ist_table[i];
        if (ist->decoding_needed) {
            AVCodec *codec;
1886
            codec = avcodec_find_decoder(ist->st->codec->codec_id);
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            if (!codec) {
1888
                fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1889
                        ist->st->codec->codec_id, ist->file_index, ist->index);
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                exit(1);
            }
1892
            if (avcodec_open(ist->st->codec, codec) < 0) {
1893
                fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
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                        ist->file_index, ist->index);
                exit(1);
            }
1897 1898
            //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
            //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
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        }
    }

    /* init pts */
    for(i=0;i<nb_istreams;i++) {
        ist = ist_table[i];
1905
        is = input_files[ist->file_index];
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        ist->pts = 0;
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        ist->next_pts = av_rescale_q(ist->st->start_time, ist->st->time_base, AV_TIME_BASE_Q);
1908
        if(ist->st->start_time == AV_NOPTS_VALUE)
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            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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        ist->is_start = 1;
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    }
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1914

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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;
    }

1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935
    /* 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;
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        }

1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949
        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);
    }
1950

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    /* open files and write file headers */
    for(i=0;i<nb_output_files;i++) {
        os = output_files[i];
1954
        if (av_write_header(os) < 0) {
1955
            fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
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            ret = -EINVAL;
            goto fail;
        }
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    }

1961
#ifndef CONFIG_WIN32
1962
    if ( !using_stdin && verbose >= 0) {
1963
        fprintf(stderr, "Press [q] to stop encoding\n");
1964 1965
        url_set_interrupt_cb(decode_interrupt_cb);
    }
1966 1967 1968
#endif
    term_init();

1969
    stream_no_data = 0;
1970
    key = -1;
1971

1972
    for(; received_sigterm == 0;) {
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        int file_index, ist_index;
        AVPacket pkt;
1975 1976
        double ipts_min;
        double opts_min;
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    redo:
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        ipts_min= 1e100;
        opts_min= 1e100;
1981
        /* if 'q' pressed, exits */
1982
        if (!using_stdin) {
1983 1984
            if (q_pressed)
                break;
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            /* read_key() returns 0 on EOF */
            key = read_key();
            if (key == 'q')
                break;
        }
1990

1991 1992
        /* select the stream that we must read now by looking at the
           smallest output pts */
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        file_index = -1;
1994
        for(i=0;i<nb_ostreams;i++) {
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            double ipts, opts;
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            ost = ost_table[i];
            os = output_files[ost->file_index];
            ist = ist_table[ost->source_index];
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            if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
                opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
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            else
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                opts = ost->st->pts.val * av_q2d(ost->st->time_base);
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            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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2013
            }
2014
            if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
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                file_index= -1;
                break;
            }
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2018 2019
        }
        /* if none, if is finished */
2020
        if (file_index < 0) {
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2021
            break;
2022 2023
        }

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2024
        /* finish if recording time exhausted */
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2025
        if (recording_time > 0 && opts_min >= (recording_time / 1000000.0))
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2026
            break;
2027

2028 2029 2030 2031
        /* finish if limit size exhausted */
        if (limit_filesize != 0 && (limit_filesize * 1024) < url_ftell(&output_files[0]->pb))
            break;

2032
        /* read a frame from it and output it in the fifo */
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2033
        is = input_files[file_index];
2034
        if (av_read_frame(is, &pkt) < 0) {
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2035
            file_table[file_index].eof_reached = 1;
2036
            if (opt_shortest) break; else continue; //
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2037
        }
2038

2039 2040 2041 2042 2043
        if (!pkt.size) {
            stream_no_data = is;
        } else {
            stream_no_data = 0;
        }
2044 2045
        if (do_pkt_dump) {
            av_pkt_dump(stdout, &pkt, do_hex_dump);
2046
        }
2047 2048 2049
        /* 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)
2050
            goto discard_packet;
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2051 2052
        ist_index = file_table[file_index].ist_index + pkt.stream_index;
        ist = ist_table[ist_index];
2053 2054
        if (ist->discard)
            goto discard_packet;
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2055

2056
//        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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2057
        if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
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2058
            int64_t delta= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q) - ist->next_pts;
2059 2060 2061
            if(ABS(delta) > 10LL*AV_TIME_BASE && !copy_ts){
                input_files_ts_offset[ist->file_index]-= delta;
                if (verbose > 2)
2062
                    fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2063 2064 2065
                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;
2067 2068 2069 2070
                }
            }
        }

2071
        //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2072
        if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2073 2074 2075 2076 2077

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

2078 2079
            av_free_packet(&pkt);
            goto redo;
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2080
        }
2081

2082
    discard_packet:
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2083
        av_free_packet(&pkt);
2084

2085 2086
        /* dump report by using the output first video and audio streams */
        print_report(output_files, ost_table, nb_ostreams, 0);
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    }
2088 2089 2090 2091 2092 2093 2094 2095 2096

    /* 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);
        }
    }

2097
    term_exit();
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    /* write the trailer if needed and close file */
    for(i=0;i<nb_output_files;i++) {
        os = output_files[i];
        av_write_trailer(os);
    }

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

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    /* close each encoder */
    for(i=0;i<nb_ostreams;i++) {
        ost = ost_table[i];
        if (ost->encoding_needed) {
2112 2113
            av_freep(&ost->st->codec->stats_in);
            avcodec_close(ost->st->codec);
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        }
    }
2116

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    /* close each decoder */
    for(i=0;i<nb_istreams;i++) {
        ist = ist_table[i];
        if (ist->decoding_needed) {
2121
            avcodec_close(ist->st->codec);
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        }
    }

    /* finished ! */
2126

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    ret = 0;
 fail1:
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    av_freep(&bit_buffer);
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2130
    av_free(file_table);
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2131

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    if (ist_table) {
        for(i=0;i<nb_istreams;i++) {
            ist = ist_table[i];
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            av_free(ist);
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        }
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        av_free(ist_table);
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    }
    if (ost_table) {
        for(i=0;i<nb_ostreams;i++) {
            ost = ost_table[i];
            if (ost) {
2143 2144 2145 2146
                if (ost->logfile) {
                    fclose(ost->logfile);
                    ost->logfile = NULL;
                }
2147 2148
                fifo_free(&ost->fifo); /* works even if fifo is not
                                          initialized but set to zero */
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                av_free(ost->pict_tmp.data[0]);
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                if (ost->video_resample)
                    img_resample_close(ost->img_resample_ctx);
                if (ost->audio_resample)
                    audio_resample_close(ost->resample);
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                av_free(ost);
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            }
        }
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        av_free(ost_table);
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    }
    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

2187
static void opt_image_format(const char *arg)
2188 2189
{
    AVImageFormat *f;
2190

2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201
    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;
}

2202
static void opt_format(const char *arg)
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2203
{
2204 2205
    /* compatibility stuff for pgmyuv */
    if (!strcmp(arg, "pgmyuv")) {
2206
        pgmyuv_compatibility_hack=1;
2207
//        opt_image_format(arg);
2208
        arg = "image2";
2209 2210
    }

2211 2212 2213 2214
    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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        exit(1);
    }
}

2219
static void opt_video_bitrate(const char *arg)
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2220 2221 2222 2223
{
    video_bit_rate = atoi(arg) * 1000;
}

2224
static void opt_video_bitrate_tolerance(const char *arg)
2225 2226 2227 2228
{
    video_bit_rate_tolerance = atoi(arg) * 1000;
}

2229
static void opt_video_bitrate_max(const char *arg)
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{
    video_rc_max_rate = atoi(arg) * 1000;
}

2234
static void opt_video_bitrate_min(const char *arg)
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2235 2236 2237 2238
{
    video_rc_min_rate = atoi(arg) * 1000;
}

2239
static void opt_video_buffer_size(const char *arg)
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{
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    video_rc_buffer_size = atoi(arg) * 8*1024;
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}

2244
static void opt_video_rc_eq(char *arg)
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{
    video_rc_eq = arg;
}

2249
static void opt_video_rc_override_string(char *arg)
2250 2251 2252 2253
{
    video_rc_override_string = arg;
}

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2254

2255
static void opt_workaround_bugs(const char *arg)
2256 2257 2258 2259
{
    workaround_bugs = atoi(arg);
}

2260 2261 2262 2263 2264
static void opt_me_threshold(const char *arg)
{
    me_threshold = atoi(arg);
}

2265 2266 2267 2268
static void opt_mb_threshold(const char *arg)
{
    mb_threshold = atoi(arg);
}
2269

2270 2271 2272
static void opt_verbose(const char *arg)
{
    verbose = atoi(arg);
2273
    av_log_set_level(atoi(arg));
2274 2275
}

2276
static void opt_frame_rate(const char *arg)
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{
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    if (parse_frame_rate(&frame_rate, &frame_rate_base, arg) < 0) {
        fprintf(stderr, "Incorrect frame rate\n");
2280
        exit(1);
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2281
    }
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}

2284
static void opt_frame_crop_top(const char *arg)
2285
{
2286
    frame_topBand = atoi(arg);
2287 2288 2289 2290 2291 2292 2293 2294 2295
    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){
2296
        fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2297 2298 2299 2300 2301
        exit(1);
    }
    frame_height -= frame_topBand;
}

2302
static void opt_frame_crop_bottom(const char *arg)
2303 2304 2305 2306 2307 2308 2309 2310
{
    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");
2311
        exit(1);
2312 2313
    }
    if ((frame_bottomBand) >= frame_height){
2314
        fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2315 2316 2317 2318 2319
        exit(1);
    }
    frame_height -= frame_bottomBand;
}

2320
static void opt_frame_crop_left(const char *arg)
2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331
{
    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){
2332
        fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2333 2334 2335 2336 2337
        exit(1);
    }
    frame_width -= frame_leftBand;
}

2338
static void opt_frame_crop_right(const char *arg)
2339 2340 2341 2342 2343 2344 2345 2346
{
    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");
2347
        exit(1);
2348 2349
    }
    if ((frame_rightBand) >= frame_width){
2350
        fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2351 2352 2353 2354 2355
        exit(1);
    }
    frame_width -= frame_rightBand;
}

2356
static void opt_frame_size(const char *arg)
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{
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    if (parse_image_size(&frame_width, &frame_height, arg) < 0) {
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        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);
    }
}

2368 2369 2370

#define SCALEBITS 10
#define ONE_HALF  (1 << (SCALEBITS - 1))
2371
#define FIX(x)    ((int) ((x) * (1<<SCALEBITS) + 0.5))
2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389

#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;
2390 2391

    r = (rgb >> 16);
2392 2393 2394 2395 2396 2397 2398 2399 2400 2401
    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)
{
2402
    frame_padtop = atoi(arg);
2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414
    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)
{
2415
    frame_padbottom = atoi(arg);
2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428
    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)
{
2429
    frame_padleft = atoi(arg);
2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442
    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)
{
2443
    frame_padright = atoi(arg);
2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454
    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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static void opt_frame_pix_fmt(const char *arg)
{
    frame_pix_fmt = avcodec_get_pix_fmt(arg);
}

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static void opt_frame_aspect_ratio(const char *arg)
{
    int x = 0, y = 0;
    double ar = 0;
    const char *p;
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    p = strchr(arg, ':');
    if (p) {
        x = strtol(arg, (char **)&arg, 10);
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        if (arg == p)
            y = strtol(arg+1, (char **)&arg, 10);
        if (x > 0 && y > 0)
            ar = (double)x / (double)y;
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    } else
        ar = strtod(arg, (char **)&arg);

    if (!ar) {
        fprintf(stderr, "Incorrect aspect ratio specification.\n");
2478
        exit(1);
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    }
    frame_aspect_ratio = ar;
}

2483
static void opt_gop_size(const char *arg)
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{
    gop_size = atoi(arg);
}

2488
static void opt_b_frames(const char *arg)
2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499
{
    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);
    }
}

2500 2501 2502 2503 2504
static void opt_pre_me(const char *arg)
{
    pre_me = atoi(arg);
}

2505
static void opt_qscale(const char *arg)
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2506
{
2507 2508 2509 2510
    video_qscale = atof(arg);
    if (video_qscale < 0.01 ||
        video_qscale > 255) {
        fprintf(stderr, "qscale must be >= 0.01 and <= 255\n");
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        exit(1);
    }
}

2515 2516 2517 2518 2519 2520 2521 2522 2523 2524
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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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;
}

2535
static void opt_qmin(const char *arg)
2536 2537
{
    video_qmin = atoi(arg);
2538
    if (video_qmin < 1 ||
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2539 2540
        video_qmin > 51) {
        fprintf(stderr, "qmin must be >= 1 and <= 51\n");
2541 2542 2543 2544
        exit(1);
    }
}

2545
static void opt_qmax(const char *arg)
2546 2547
{
    video_qmax = atoi(arg);
2548
    if (video_qmax < 1 ||
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2549 2550
        video_qmax > 51) {
        fprintf(stderr, "qmax must be >= 1 and <= 51\n");
2551 2552 2553 2554
        exit(1);
    }
}

2555
static void opt_mb_lmin(const char *arg)
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{
2557 2558 2559 2560
    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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        exit(1);
    }
}

2565
static void opt_mb_lmax(const char *arg)
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{
2567 2568 2569 2570
    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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        exit(1);
    }
}

2575
static void opt_qdiff(const char *arg)
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{
    video_qdiff = atoi(arg);
    if (video_qdiff < 0 ||
        video_qdiff > 31) {
        fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
        exit(1);
    }
}

2585
static void opt_qblur(const char *arg)
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{
    video_qblur = atof(arg);
}

2590
static void opt_qcomp(const char *arg)
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{
    video_qcomp = atof(arg);
}
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2595
static void opt_rc_initial_cplx(const char *arg)
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{
    video_rc_initial_cplx = atof(arg);
}
2599
static void opt_b_qfactor(const char *arg)
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{
    video_b_qfactor = atof(arg);
}
2603
static void opt_i_qfactor(const char *arg)
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{
    video_i_qfactor = atof(arg);
}
2607
static void opt_b_qoffset(const char *arg)
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{
    video_b_qoffset = atof(arg);
}
2611
static void opt_i_qoffset(const char *arg)
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{
    video_i_qoffset = atof(arg);
}

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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);
}

2625
static void opt_packet_size(const char *arg)
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{
    packet_size= atoi(arg);
}

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static void opt_error_rate(const char *arg)
{
    error_rate= atoi(arg);
}

2635
static void opt_strict(const char *arg)
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{
    strict= atoi(arg);
}

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static void opt_top_field_first(const char *arg)
{
    top_field_first= atoi(arg);
}

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static void opt_sc_threshold(const char *arg)
{
    sc_threshold= atoi(arg);
}

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static void opt_me_range(const char *arg)
{
    me_range = atoi(arg);
}

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static void opt_thread_count(const char *arg)
{
    thread_count= atoi(arg);
2658
#if !defined(HAVE_THREADS)
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    if (verbose >= 0)
        fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
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#endif
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}

2664
static void opt_audio_bitrate(const char *arg)
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{
    audio_bit_rate = atoi(arg) * 1000;
}

2669
static void opt_audio_rate(const char *arg)
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{
    audio_sample_rate = atoi(arg);
}

2674
static void opt_audio_channels(const char *arg)
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{
    audio_channels = atoi(arg);
}

2679
static void opt_video_device(const char *arg)
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{
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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);
}

2689
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);
}

2699
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;

2709
    if (!strcmp(arg, "copy")) {
2710
        *pstream_copy = 1;
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    } else {
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        p = first_avcodec;
        while (p) {
2714
            if (!strcmp(p->name, arg) && p->type == codec_type)
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                break;
            p = p->next;
        }
        if (p == NULL) {
2719
            fprintf(stderr, "Unknown codec '%s'\n", arg);
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            exit(1);
        } else {
2722
            *pcodec_id = p->id;
2723
        }
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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);
}

2750
static void add_frame_hooker(const char *arg)
2751 2752 2753 2754
{
    int argc = 0;
    char *argv[64];
    int i;
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    char *args = av_strdup(arg);
2756

2757 2758
    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,
};

2784
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++;
    }
2797
    me_method = (p - motion_str) + 1;
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}

2800
static void opt_video_codec(const char *arg)
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2801
{
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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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}

2810
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);
}

2850
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);
}

2870
static void opt_input_file(const char *filename)
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{
    AVFormatContext *ic;
    AVFormatParameters params, *ap = &params;
2874
    int err, i, ret, rfps, rfps_base;
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    int64_t timestamp;
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    if (!strcmp(filename, "-"))
        filename = "pipe:";

2880
    using_stdin |= !strncmp(filename, "pipe:", 5) ||
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                   !strcmp( filename, "/dev/stdin" );

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2883
    /* get default parameters from command line */
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    memset(ap, 0, sizeof(*ap));
    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;
2891
    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;
2900 2901 2902

    /* 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) {
2904
        print_error(filename, err);
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        exit(1);
    }
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    if(genpts)
        ic->flags|= AVFMT_FLAG_GENPTS;
2910

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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);
2914
    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;

2924 2925
    /* if seeking requested, we execute it */
    if (start_time != 0) {
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2926
        ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2927
        if (ret < 0) {
2928
            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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2935 2936
    /* update the current parameters so that they match the one of the input stream */
    for(i=0;i<ic->nb_streams;i++) {
2937
        int j;
2938
        AVCodecContext *enc = ic->streams[i]->codec;
2939
#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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2944 2945
        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);
            }
2952
            //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
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            audio_channels = enc->channels;
            audio_sample_rate = enc->sample_rate;
2955
            if(audio_disable)
2956
                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;
2971
            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;
2975

2976
            if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2977 2978

                if (verbose >= 0)
2979
                    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,
2981

2982
                    (float)rfps / rfps_base, rfps, rfps_base);
2983
            }
2984
            /* 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;
3000
        default:
3001
            av_abort();
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        }
    }
3004

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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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3007
    /* 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;
3014
    image_format = NULL;
3015

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    grab_device = NULL;
    video_channel = 0;
3018

3019
    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("");
}

3028
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++) {
3038
            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;
3046
            case CODEC_TYPE_DATA:
3047
            case CODEC_TYPE_UNKNOWN:
3048
            case CODEC_TYPE_SUBTITLE:
3049
                break;
3050
            default:
3051
                av_abort();
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            }
        }
    }
    *has_video_ptr = has_video;
    *has_audio_ptr = has_audio;
}

3059
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);
    }
#if defined(HAVE_THREADS)
    if(thread_count>1)
3072
        avcodec_thread_init(st->codec, thread_count);
3073
#endif
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3075
    video_enc = st->codec;
3076

3077 3078
    if(video_codec_tag)
        video_enc->codec_tag= video_codec_tag;
3079

3080
    if(   (video_global_header&1)
3081
       || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3082
        video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
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        avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
    }
    if(video_global_header&2){
3086
        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);
3104

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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;
        video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
        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;
3154
            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);
            }
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            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;
        }
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        if (do_psnr)
            video_enc->flags|= CODEC_FLAG_PSNR;
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        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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    int codec_id, i;
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    st = av_new_stream(oc, oc->nb_streams);
    if (!st) {
        fprintf(stderr, "Could not alloc stream\n");
        exit(1);
    }
#if defined(HAVE_THREADS)
    if(thread_count>1)
3271
        avcodec_thread_init(st->codec, thread_count);
3272
#endif
3273

3274
    audio_enc = st->codec;
3275
    audio_enc->codec_type = CODEC_TYPE_AUDIO;
3276

3277 3278
    if(audio_codec_tag)
        audio_enc->codec_tag= audio_codec_tag;
3279

3280
    if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3281
        audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3282 3283
        avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
    }
3284 3285 3286 3287 3288
    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);
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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_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
                av_set_double(audio_enc, opt_names[i], d);
        }
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        if (audio_codec_id != CODEC_ID_NONE)
            codec_id = audio_codec_id;
        audio_enc->codec_id = codec_id;
3300

3301
        audio_enc->bit_rate = audio_bit_rate;
3302 3303 3304 3305
        if (audio_qscale > QSCALE_NONE) {
            audio_enc->flags |= CODEC_FLAG_QSCALE;
            audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
        }
3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316
        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;
3317
    audio_enc->time_base= (AVRational){1, audio_sample_rate};
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    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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    int i;
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3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348
    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);
    }

3349
    subtitle_enc = st->codec;
3350 3351 3352 3353
    subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
    if (subtitle_stream_copy) {
        st->stream_copy = 1;
    } else {
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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_SUBTITLE_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
                 av_set_double(subtitle_enc, opt_names[i], d);
        }
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        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;
3399
    AVFormatParameters params, *ap = &params;
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3400 3401 3402 3403

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

3404
    oc = av_alloc_format_context();
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3406 3407 3408 3409 3410 3411 3412
    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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    }
3414

3415
    oc->oformat = file_oformat;
3416
    pstrcpy(oc->filename, sizeof(oc->filename), filename);
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3417

3418
    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 {
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        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;
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        /* 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;
        }
3439 3440

        /* manual disable */
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        if (audio_disable) {
            use_audio = 0;
        }
        if (video_disable) {
            use_video = 0;
        }
3447

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        if (use_video) {
3449
            new_video_stream(oc);
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        }
3451

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        if (use_audio) {
3453
            new_audio_stream(oc);
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        }

3456
        if (!oc->nb_streams) {
3457
            fprintf(stderr, "No audio or video streams available\n");
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            exit(1);
        }

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        oc->timestamp = rec_timestamp;
3462

3463
        if (str_title)
3464
            pstrcpy(oc->title, sizeof(oc->title), str_title);
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3465
        if (str_author)
3466
            pstrcpy(oc->author, sizeof(oc->author), str_author);
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3467
        if (str_copyright)
3468
            pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
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3469
        if (str_comment)
3470
            pstrcpy(oc->comment, sizeof(oc->comment), str_comment);
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    }

3473
    output_files[nb_output_files++] = oc;
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3474

3475
    /* check filename in case of an image number is expected */
3476 3477 3478
    if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
        if (filename_number_test(oc->filename) < 0) {
            print_error(oc->filename, AVERROR_NUMEXPECTED);
3479
            exit(1);
3480
        }
3481 3482
    }

3483
    if (!(oc->oformat->flags & AVFMT_NOFILE)) {
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3484
        /* test if it already exists to avoid loosing precious files */
3485
        if (!file_overwrite &&
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3486 3487 3488 3489
            (strchr(filename, ':') == NULL ||
             strstart(filename, "file:", NULL))) {
            if (url_exist(filename)) {
                int c;
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3491 3492 3493 3494 3495 3496 3497 3498
                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);
                    }
3499 3500
                                }
                                else {
3501
                    fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
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                    exit(1);
3503
                                }
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            }
        }
3506

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

3514 3515 3516 3517 3518 3519 3520 3521
    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);
    }

3522 3523
    oc->packet_size= mux_packet_size;
    oc->mux_rate= mux_rate;
3524 3525
    oc->preload= (int)(mux_preload*AV_TIME_BASE);
    oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3526
    oc->loop_output = loop_output;
3527

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    /* reset some options */
3529 3530
    file_oformat = NULL;
    file_iformat = NULL;
3531
    image_format = NULL;
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3532 3533
}

3534
/* prepare dummy protocols for grab */
3535
static void prepare_grab(void)
3536 3537 3538 3539
{
    int has_video, has_audio, i, j;
    AVFormatContext *oc;
    AVFormatContext *ic;
3540
    AVFormatParameters vp1, *vp = &vp1;
3541
    AVFormatParameters ap1, *ap = &ap1;
3542

3543 3544 3545 3546
    /* see if audio/video inputs are needed */
    has_video = 0;
    has_audio = 0;
    memset(ap, 0, sizeof(*ap));
3547
    memset(vp, 0, sizeof(*vp));
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    vp->time_base.num= 1;
3549 3550 3551
    for(j=0;j<nb_output_files;j++) {
        oc = output_files[j];
        for(i=0;i<oc->nb_streams;i++) {
3552
            AVCodecContext *enc = oc->streams[i]->codec;
3553 3554 3555 3556 3557 3558 3559 3560 3561
            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:
3562 3563 3564 3565
                if (enc->width > vp->width)
                    vp->width = enc->width;
                if (enc->height > vp->height)
                    vp->height = enc->height;
3566

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                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;
3569
                }
3570 3571
                has_video = 1;
                break;
3572
            default:
3573
                av_abort();
3574 3575 3576
            }
        }
    }
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3578 3579 3580 3581
    if (has_video == 0 && has_audio == 0) {
        fprintf(stderr, "Output file must have at least one audio or video stream\n");
        exit(1);
    }
3582

3583
    if (has_video) {
3584
        AVInputFormat *fmt1;
3585
        fmt1 = av_find_input_format(video_grab_format);
3586 3587
        vp->device  = video_device;
        vp->channel = video_channel;
3588
        vp->standard = video_standard;
3589
        vp->pix_fmt = frame_pix_fmt;
3590
        if (av_open_input_file(&ic, "", fmt1, 0, vp) < 0) {
3591
            fprintf(stderr, "Could not find video grab device\n");
3592 3593
            exit(1);
        }
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        /* If not enough info to get the stream parameters, we decode the
           first frames to get it. */
3596
        if ((ic->ctx_flags & AVFMTCTX_NOHEADER) && av_find_stream_info(ic) < 0) {
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            fprintf(stderr, "Could not find video grab parameters\n");
            exit(1);
        }
3600
        /* by now video grab has one stream */
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3601 3602
        ic->streams[0]->r_frame_rate.num = vp->time_base.den;
        ic->streams[0]->r_frame_rate.den = vp->time_base.num;
3603
        input_files[nb_input_files] = ic;
3604 3605 3606 3607

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

3608 3609
        nb_input_files++;
    }
3610
    if (has_audio && audio_grab_format) {
3611
        AVInputFormat *fmt1;
3612
        fmt1 = av_find_input_format(audio_grab_format);
3613
        ap->device = audio_device;
3614
        if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
3615
            fprintf(stderr, "Could not find audio grab device\n");
3616 3617 3618
            exit(1);
        }
        input_files[nb_input_files] = ic;
3619 3620 3621 3622

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

3623 3624 3625 3626
        nb_input_files++;
    }
}

3627
/* same option as mencoder */
3628
static void opt_pass(const char *pass_str)
3629 3630 3631 3632 3633 3634 3635 3636 3637
{
    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;
}
3638

3639
#if defined(CONFIG_WIN32) || defined(CONFIG_OS2)
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3640
static int64_t getutime(void)
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3641
{
3642
  return av_gettime();
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}
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#else
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static int64_t getutime(void)
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{
3647 3648 3649 3650
    struct rusage rusage;

    getrusage(RUSAGE_SELF, &rusage);
    return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
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}
#endif
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3654 3655
extern int ffm_nopts;

3656
static void show_formats(void)
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{
3658 3659
    AVInputFormat *ifmt;
    AVOutputFormat *ofmt;
3660
    AVImageFormat *image_fmt;
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3661
    URLProtocol *up;
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    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;
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        const char *long_name=NULL;
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        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;
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                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;
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                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;
3694

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        printf(
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            " %s%s %-15s %s\n",
            decode ? "D":" ",
            encode ? "E":" ",
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            name,
            long_name ? long_name:" ");
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    }
    printf("\n");

3704
    printf("Image formats (filename extensions, if any, follow):\n");
3705
    for(image_fmt = first_image_format; image_fmt != NULL;
3706
        image_fmt = image_fmt->next) {
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        printf(
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            " %s%s %-6s %s\n",
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            image_fmt->img_read  ? "D":" ",
            image_fmt->img_write ? "E":" ",
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            image_fmt->name,
            image_fmt->extensions ? image_fmt->extensions:" ");
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    }
    printf("\n");

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    printf("Codecs:\n");
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    last_name= "000";
    for(;;){
        int decode=0;
        int encode=0;
        int cap=0;
3722
        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":" ",
3759
            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");
3774

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    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);
3780
        if ((pp - motion_str + 1) == ME_ZERO)
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            printf("(fastest)");
3782
        else if ((pp - motion_str + 1) == ME_FULL)
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            printf("(slowest)");
3784
        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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3798
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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3815
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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3821
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;
3830
    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++) {
3855
                        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)
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            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]);
3891
        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");
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        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;
3922
        video_rc_min_rate = 0; //1145000;
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        video_rc_buffer_size = 224*1024*8;
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        opt_default("flags", "+SCAN_OFFSET");

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        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;
3944
        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(!strcmp(arg, "dv")) {

        opt_format("dv");

        opt_frame_size(norm ? "720x480" : "720x576");
        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 show_version(void)
{
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al committed
3971
    /* TODO: add function interface to avutil and avformat */
3972
    fprintf(stderr, "ffmpeg      " FFMPEG_VERSION "\n"
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al committed
3973
           "libavutil   %d\n"
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           "libavcodec  %d\n"
3975
           "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);
    if(!o)
        return -1;
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3985
//    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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    /* disable generate of real time pts in ffm (need to be supressed anyway) */
    if(avctx_opts->flags & CODEC_FLAG_BITEXACT)
        ffm_nopts = 1;

    if(avctx_opts->debug)
        av_log_set_level(AV_LOG_DEBUG);
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    return 0;
}

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4000
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" },
4007
    { "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" },
4010
    { "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" },
4013
    { "fs", HAS_ARG | OPT_INT, {(void*)&limit_filesize}, "set the limit file size", "limit_size" }, //
4014
    { "ss", HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
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4015
    { "itsoffset", HAS_ARG, {(void*)opt_input_ts_offset}, "set the input ts offset", "time_off" },
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4016
    { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
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4017
    { "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" },
4021
    { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
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      "add timings for benchmarking" },
4023
    { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
4024
      "dump each input packet" },
4025
    { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
4026
      "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", "" },
    { "loop", 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\", \"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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    /* 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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    { "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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    { "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" },
4070
    { "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" },
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    { "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" },
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    { "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" },
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    { "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" },
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    { "strict", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_strict}, "how strictly to follow the standards", "strictness" },
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    { "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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    { "genpts", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&genpts }, "generate pts" },
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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" },
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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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4142

4143
    /* 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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4152
    { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
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    { NULL, },
};

4156 4157
static void show_banner(void)
{
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    fprintf(stderr, "FFmpeg version " FFMPEG_VERSION ", Copyright (c) 2000-2004 Fabrice Bellard\n");
    fprintf(stderr, "  configuration: " FFMPEG_CONFIGURATION "\n");
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4160
    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");
4163
    fprintf(stderr, "  built on " __DATE__ " " __TIME__);
4164
#ifdef __GNUC__
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4165
    fprintf(stderr, ", gcc: " __VERSION__ "\n");
4166
#else
4167
    fprintf(stderr, ", using a non-gcc compiler\n");
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#endif
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}

static void show_license(void)
{
    show_banner();
4174
#ifdef CONFIG_GPL
4175
    printf(
4176
    "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"
4188
    "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n"
4189
    );
4190
#else
4191
    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"
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    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
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    );
4206
#endif
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    exit(1);
}

static void show_help(void)
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4211
{
4212
    show_banner();
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4213
    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",
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                      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);
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    show_help_options(options, "\nSubtitle options:\n",
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                      OPT_SUBTITLE | OPT_GRAB,
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                      OPT_SUBTITLE);
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    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",
4237
                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
4238
                      OPT_EXPERT);
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4239
    av_opt_show(avctx_opts, NULL);
4240

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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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4251
    int i;
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    int64_t ti;
4253

4254
    av_register_all();
4255

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    avctx_opts= avcodec_alloc_context();
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    if (argc <= 1)
        show_help();
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    else
        show_banner();
4262

4263
    /* parse options */
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4264
    parse_options(argc, argv, options);
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4265

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    /* file converter / grab */
    if (nb_output_files <= 0) {
        fprintf(stderr, "Must supply at least one output file\n");
        exit(1);
    }
4271

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4272
    if (nb_input_files == 0) {
4273
        input_sync = 1;
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        prepare_grab();
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    }

    ti = getutime();
4278
    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];
4289
        int j;
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4290
        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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4294
        av_free(s);
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4295
    }
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    for(i=0;i<nb_input_files;i++)
        av_close_input_file(input_files[i]);
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4299
    av_free_static();
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    if(intra_matrix)
        av_free(intra_matrix);
    if(inter_matrix)
        av_free(inter_matrix);
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4306
#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 */
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#ifndef CONFIG_WIN32
    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;
}