avcodec.c 16.8 KB
Newer Older
1
/*****************************************************************************
2
 * avcodec.c: video and audio decoder and encoder using libavcodec
3
 *****************************************************************************
4
 * Copyright (C) 1999-2008 the VideoLAN team
5
 * $Id$
6 7
 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8
 *          Gildas Bazin <gbazin@videolan.org>
9 10 11 12 13
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
14
 *
15 16 17 18 19 20 21
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
Antoine Cellerier's avatar
Antoine Cellerier committed
22
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 24 25 26 27
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
28 29 30 31
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

32
#include <vlc_common.h>
33
#include <vlc_plugin.h>
Clément Stenac's avatar
Clément Stenac committed
34
#include <vlc_codec.h>
35
#include <vlc_avcodec.h>
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
36
#include <vlc_cpu.h>
37

Gildas Bazin's avatar
 
Gildas Bazin committed
38
/* ffmpeg header */
39
#define HAVE_MMX 1
40 41
#ifdef HAVE_LIBAVCODEC_AVCODEC_H
#   include <libavcodec/avcodec.h>
Gildas Bazin's avatar
 
Gildas Bazin committed
42 43 44
#else
#   include <avcodec.h>
#endif
45

Rémi Duraffort's avatar
Rémi Duraffort committed
46
#include "avcodec.h"
47
#include "chroma.h"
Rémi Duraffort's avatar
Rémi Duraffort committed
48

49 50
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT( 52, 25, 0 )
#   error You must update libavcodec to a version >= 52.25.0
51
#endif
52

Gildas Bazin's avatar
 
Gildas Bazin committed
53 54 55 56 57 58
/*****************************************************************************
 * decoder_sys_t: decoder descriptor
 *****************************************************************************/
struct decoder_sys_t
{
    /* Common part between video and audio decoder */
59
    AVCODEC_COMMON_MEMBERS
Gildas Bazin's avatar
 
Gildas Bazin committed
60
};
61

Gildas Bazin's avatar
 
Gildas Bazin committed
62 63 64 65
/****************************************************************************
 * Local prototypes
 ****************************************************************************/
static int OpenDecoder( vlc_object_t * );
Gildas Bazin's avatar
 
Gildas Bazin committed
66
static void CloseDecoder( vlc_object_t * );
67

68 69
static const int  nloopf_list[] = { 0, 1, 2, 3, 4 };
static const char *const nloopf_list_text[] =
70 71
  { N_("None"), N_("Non-ref"), N_("Bidir"), N_("Non-key"), N_("All") };

72
#ifdef ENABLE_SOUT
73 74 75
static const char *const enc_hq_list[] = { "rd", "bits", "simple" };
static const char *const enc_hq_list_text[] = {
    N_("rd"), N_("bits"), N_("simple") };
76
#endif
77

78 79
#ifdef MERGE_FFMPEG
# include "../../demux/avformat/avformat.h"
80
# include "../../access/avio.h"
81 82
#endif

83 84 85
/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
Christophe Mutricy's avatar
Typo  
Christophe Mutricy committed
86
#define MODULE_DESCRIPTION N_( "Various audio and video decoders/encoders " \
87 88 89
        "delivered by the FFmpeg library. This includes (MS)MPEG4, DivX, SV1,"\
        "H261, H263, H264, WMV, WMA, AAC, AMR, DV, MJPEG and other codecs")

90 91 92 93
vlc_module_begin ()
    set_shortname( "FFmpeg")
    add_shortcut( "ffmpeg" )
    set_category( CAT_INPUT )
94
    set_subcategory( SUBCAT_INPUT_VCODEC )
Gildas Bazin's avatar
 
Gildas Bazin committed
95
    /* decoder main module */
96 97 98 99 100
    set_description( N_("FFmpeg audio/video decoder") )
    set_help( MODULE_DESCRIPTION )
    set_capability( "decoder", 70 )
    set_section( N_("Decoding") , NULL )
    set_callbacks( OpenDecoder, CloseDecoder )
Gildas Bazin's avatar
 
Gildas Bazin committed
101

102

103
    add_bool( "ffmpeg-dr", true, DR_TEXT, DR_TEXT, true )
104
    add_integer ( "ffmpeg-error-resilience", 1, ERROR_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
105
        ERROR_LONGTEXT, true )
106
    add_integer ( "ffmpeg-workaround-bugs", 1, BUGS_TEXT, BUGS_LONGTEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
107
        false )
108
    add_bool( "ffmpeg-hurry-up", true, HURRYUP_TEXT, HURRYUP_LONGTEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
109
        false )
110
    add_integer( "ffmpeg-skip-frame", 0, SKIP_FRAME_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
111
        SKIP_FRAME_LONGTEXT, true )
112
        change_integer_range( -1, 4 )
113
    add_integer( "ffmpeg-skip-idct", 0, SKIP_IDCT_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
114
        SKIP_IDCT_LONGTEXT, true )
115
        change_integer_range( -1, 4 )
116
    add_integer ( "ffmpeg-vismv", 0, VISMV_TEXT, VISMV_LONGTEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
117
        true )
118
    add_integer ( "ffmpeg-lowres", 0, LOWRES_TEXT, LOWRES_LONGTEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
119
        true )
120
        change_integer_range( 0, 2 )
121
    add_bool( "ffmpeg-fast", false, FAST_TEXT, FAST_LONGTEXT, false )
122
    add_integer ( "ffmpeg-skiploopfilter", 0, SKIPLOOPF_TEXT,
123
                  SKIPLOOPF_LONGTEXT, false)
124
        change_safe ()
125
        change_integer_list( nloopf_list, nloopf_list_text )
Gildas Bazin's avatar
 
Gildas Bazin committed
126

127
    add_integer( "ffmpeg-debug", 0, DEBUG_TEXT, DEBUG_LONGTEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
128
                 true )
129
    add_string( "ffmpeg-codec", NULL, CODEC_TEXT, CODEC_LONGTEXT, true )
130
#if defined(HAVE_AVCODEC_VAAPI) || defined(HAVE_AVCODEC_DXVA2)
131
    add_bool( "ffmpeg-hw", false, HW_TEXT, HW_LONGTEXT, false )
132
#endif
Laurent Aimar's avatar
Laurent Aimar committed
133
#if defined(FF_THREAD_FRAME)
134
    add_integer( "ffmpeg-threads", 0, THREADS_TEXT, THREADS_LONGTEXT, true );
Laurent Aimar's avatar
Laurent Aimar committed
135 136
#endif

Gildas Bazin's avatar
 
Gildas Bazin committed
137

138
#ifdef ENABLE_SOUT
Gildas Bazin's avatar
 
Gildas Bazin committed
139
    /* encoder submodule */
140
    add_submodule ()
141
    add_shortcut( "ffmpeg" )
142 143 144 145
    set_section( N_("Encoding") , NULL )
    set_description( N_("FFmpeg audio/video encoder") )
    set_capability( "encoder", 100 )
    set_callbacks( OpenEncoder, CloseEncoder )
Gildas Bazin's avatar
 
Gildas Bazin committed
146

147
    add_string( ENC_CFG_PREFIX "codec", NULL, CODEC_TEXT, CODEC_LONGTEXT, true )
148
    add_string( ENC_CFG_PREFIX "hq", "simple", ENC_HQ_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
149 150
                ENC_HQ_LONGTEXT, false )
        change_string_list( enc_hq_list, enc_hq_list_text, 0 )
151
    add_integer( ENC_CFG_PREFIX "keyint", 0, ENC_KEYINT_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
152
                 ENC_KEYINT_LONGTEXT, false )
153
    add_integer( ENC_CFG_PREFIX "bframes", 0, ENC_BFRAMES_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
154
                 ENC_BFRAMES_LONGTEXT, false )
155
    add_bool( ENC_CFG_PREFIX "hurry-up", false, ENC_HURRYUP_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
156
              ENC_HURRYUP_LONGTEXT, false )
157
    add_bool( ENC_CFG_PREFIX "interlace", false, ENC_INTERLACE_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
158
              ENC_INTERLACE_LONGTEXT, true )
159
    add_bool( ENC_CFG_PREFIX "interlace-me", true, ENC_INTERLACE_ME_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
160
              ENC_INTERLACE_ME_LONGTEXT, true )
161
    add_integer( ENC_CFG_PREFIX "vt", 0, ENC_VT_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
162
                 ENC_VT_LONGTEXT, true )
163
    add_bool( ENC_CFG_PREFIX "pre-me", false, ENC_PRE_ME_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
164
              ENC_PRE_ME_LONGTEXT, true )
165
    add_integer( ENC_CFG_PREFIX "rc-buffer-size", 224*1024*8,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
166
                 ENC_RC_BUF_TEXT, ENC_RC_BUF_LONGTEXT, true )
167
    add_float( ENC_CFG_PREFIX "rc-buffer-aggressivity", 1.0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
168
               ENC_RC_BUF_AGGR_TEXT, ENC_RC_BUF_AGGR_LONGTEXT, true )
169
    add_float( ENC_CFG_PREFIX "i-quant-factor", 0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
170
               ENC_IQUANT_FACTOR_TEXT, ENC_IQUANT_FACTOR_LONGTEXT, true )
171
    add_integer( ENC_CFG_PREFIX "noise-reduction", 0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
172
                 ENC_NOISE_RED_TEXT, ENC_NOISE_RED_LONGTEXT, true )
173
    add_bool( ENC_CFG_PREFIX "mpeg4-matrix", false,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
174
              ENC_MPEG4_MATRIX_TEXT, ENC_MPEG4_MATRIX_LONGTEXT, true )
175
    add_integer( ENC_CFG_PREFIX "qmin", 0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
176
                 ENC_QMIN_TEXT, ENC_QMIN_LONGTEXT, true )
177
    add_integer( ENC_CFG_PREFIX "qmax", 0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
178
                 ENC_QMAX_TEXT, ENC_QMAX_LONGTEXT, true )
179
    add_bool( ENC_CFG_PREFIX "trellis", false,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
180
              ENC_TRELLIS_TEXT, ENC_TRELLIS_LONGTEXT, true )
181
    add_float( ENC_CFG_PREFIX "qscale", 0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
182
               ENC_QSCALE_TEXT, ENC_QSCALE_LONGTEXT, true )
183
    add_integer( ENC_CFG_PREFIX "strict", 0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
184
                 ENC_STRICT_TEXT, ENC_STRICT_LONGTEXT, true )
185
        change_integer_range( -2, 2 )
186
    add_float( ENC_CFG_PREFIX "lumi-masking", 0.0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
187
               ENC_LUMI_MASKING_TEXT, ENC_LUMI_MASKING_LONGTEXT, true )
188
    add_float( ENC_CFG_PREFIX "dark-masking", 0.0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
189
               ENC_DARK_MASKING_TEXT, ENC_DARK_MASKING_LONGTEXT, true )
190
    add_float( ENC_CFG_PREFIX "p-masking", 0.0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
191
               ENC_P_MASKING_TEXT, ENC_P_MASKING_LONGTEXT, true )
192
    add_float( ENC_CFG_PREFIX "border-masking", 0.0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
193
               ENC_BORDER_MASKING_TEXT, ENC_BORDER_MASKING_LONGTEXT, true )
194
    add_integer( ENC_CFG_PREFIX "luma-elim-threshold", 0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
195
                 ENC_LUMA_ELIM_TEXT, ENC_LUMA_ELIM_LONGTEXT, true )
196
    add_integer( ENC_CFG_PREFIX "chroma-elim-threshold", 0,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
197
                 ENC_CHROMA_ELIM_TEXT, ENC_CHROMA_ELIM_LONGTEXT, true )
198

199
    /* Audio AAC encoder profile */
200
    add_string( ENC_CFG_PREFIX "aac-profile", "low",
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
201
                ENC_PROFILE_TEXT, ENC_PROFILE_LONGTEXT, true )
202
#endif /* ENABLE_SOUT */
203

204
    /* video filter submodule */
205 206 207 208 209
    add_submodule ()
    set_capability( "video filter2", 0 )
    set_callbacks( OpenDeinterlace, CloseDeinterlace )
    set_description( N_("FFmpeg deinterlace video filter") )
    add_shortcut( "ffmpeg-deinterlace" )
210

211 212 213
#ifdef MERGE_FFMPEG
    add_submodule ()
#   include "../../demux/avformat/avformat.c"
214 215
    add_submodule ()
        AVIO_MODULE
216
#endif
217
vlc_module_end ()
218 219 220 221 222 223

/*****************************************************************************
 * OpenDecoder: probe the decoder and return score
 *****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
Gildas Bazin's avatar
 
Gildas Bazin committed
224
    decoder_t *p_dec = (decoder_t*) p_this;
Gildas Bazin's avatar
 
Gildas Bazin committed
225
    int i_cat, i_codec_id, i_result;
226
    const char *psz_namecodec;
Gildas Bazin's avatar
 
Gildas Bazin committed
227

Jean-Paul Saman's avatar
Jean-Paul Saman committed
228 229
    AVCodecContext *p_context = NULL;
    AVCodec        *p_codec = NULL;
Gildas Bazin's avatar
 
Gildas Bazin committed
230 231

    /* *** determine codec type *** */
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
232
    if( !GetFfmpegCodec( p_dec->fmt_in.i_codec, &i_cat, &i_codec_id,
Gildas Bazin's avatar
 
Gildas Bazin committed
233 234 235 236
                             &psz_namecodec ) )
    {
        return VLC_EGENERIC;
    }
237

Gildas Bazin's avatar
 
Gildas Bazin committed
238
    /* Initialization must be done before avcodec_find_decoder() */
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
239
    InitLibavcodec(p_this);
Gildas Bazin's avatar
 
Gildas Bazin committed
240

241
    /* *** ask ffmpeg for a decoder *** */
242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257
    char *psz_decoder = var_CreateGetString( p_this, "ffmpeg-codec" );
    if( psz_decoder && *psz_decoder )
    {
        p_codec = avcodec_find_decoder_by_name( psz_decoder );
        if( !p_codec )
            msg_Err( p_this, "Decoder `%s' not found", psz_decoder );
        else if( p_codec->id != i_codec_id )
        {
            msg_Err( p_this, "Decoder `%s' can't handle %4.4s",
                    psz_decoder, (char*)&p_dec->fmt_in.i_codec );
            p_codec = NULL;
        }
    }
    free( psz_decoder );
    if( !p_codec )
        p_codec = avcodec_find_decoder( i_codec_id );
Jean-Paul Saman's avatar
Jean-Paul Saman committed
258
    if( !p_codec )
259
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
260
        msg_Dbg( p_dec, "codec not found (%s)", psz_namecodec );
Gildas Bazin's avatar
 
Gildas Bazin committed
261
        return VLC_EGENERIC;
262 263
    }

Gildas Bazin's avatar
 
Gildas Bazin committed
264
    /* *** get a p_context *** */
265 266 267
#if LIBAVCODEC_VERSION_MAJOR >= 54
    p_context = avcodec_alloc_context3(p_codec);
#else
Gildas Bazin's avatar
 
Gildas Bazin committed
268
    p_context = avcodec_alloc_context();
269
#endif
Jean-Paul Saman's avatar
Jean-Paul Saman committed
270
    if( !p_context )
271
        return VLC_ENOMEM;
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
272
    p_context->debug = var_InheritInteger( p_dec, "ffmpeg-debug" );
273
    p_context->opaque = (void *)p_this;
274

Gildas Bazin's avatar
 
Gildas Bazin committed
275
    /* Set CPU capabilities */
276
    unsigned i_cpu = vlc_CPU();
Gildas Bazin's avatar
 
Gildas Bazin committed
277
    p_context->dsp_mask = 0;
278
    if( !(i_cpu & CPU_CAPABILITY_MMX) )
Gildas Bazin's avatar
 
Gildas Bazin committed
279
    {
280
        p_context->dsp_mask |= AV_CPU_FLAG_MMX;
Gildas Bazin's avatar
 
Gildas Bazin committed
281
    }
282
    if( !(i_cpu & CPU_CAPABILITY_MMXEXT) )
Gildas Bazin's avatar
 
Gildas Bazin committed
283
    {
284
        p_context->dsp_mask |= AV_CPU_FLAG_MMX2;
Gildas Bazin's avatar
 
Gildas Bazin committed
285
    }
286
    if( !(i_cpu & CPU_CAPABILITY_3DNOW) )
Gildas Bazin's avatar
 
Gildas Bazin committed
287
    {
288
        p_context->dsp_mask |= AV_CPU_FLAG_3DNOW;
Gildas Bazin's avatar
 
Gildas Bazin committed
289
    }
290
    if( !(i_cpu & CPU_CAPABILITY_SSE) )
Gildas Bazin's avatar
 
Gildas Bazin committed
291
    {
292
        p_context->dsp_mask |= AV_CPU_FLAG_SSE;
293
    }
294
    if( !(i_cpu & CPU_CAPABILITY_SSE2) )
295
    {
296
        p_context->dsp_mask |= AV_CPU_FLAG_SSE2;
Gildas Bazin's avatar
 
Gildas Bazin committed
297
    }
298
#ifdef AV_CPU_FLAG_SSE3
299
    if( !(i_cpu & CPU_CAPABILITY_SSE3) )
300
        p_context->dsp_mask |= AV_CPU_FLAG_SSE3;
301
#endif
302
#ifdef AV_CPU_FLAG_SSSE3
303
    if( !(i_cpu & CPU_CAPABILITY_SSSE3) )
304
        p_context->dsp_mask |= AV_CPU_FLAG_SSSE3;
305
#endif
306
#ifdef AV_CPU_FLAG_SSE4
307
    if( !(i_cpu & CPU_CAPABILITY_SSE4_1) )
308
        p_context->dsp_mask |= AV_CPU_FLAG_SSE4;
309
#endif
310
#ifdef AV_CPU_FLAG_SSE42
311
    if( !(i_cpu & CPU_CAPABILITY_SSE4_2) )
312
        p_context->dsp_mask |= AV_CPU_FLAG_SSE42;
313
#endif
Gildas Bazin's avatar
 
Gildas Bazin committed
314

315
    p_dec->b_need_packetized = true;
Gildas Bazin's avatar
 
Gildas Bazin committed
316
    switch( i_cat )
317
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
318
    case VIDEO_ES:
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
319 320
        p_dec->pf_decode_video = DecodeVideo;
        i_result =  InitVideoDec ( p_dec, p_context, p_codec,
Gildas Bazin's avatar
 
Gildas Bazin committed
321 322 323
                                       i_codec_id, psz_namecodec );
        break;
    case AUDIO_ES:
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
324 325
        p_dec->pf_decode_audio = DecodeAudio;
        i_result =  InitAudioDec ( p_dec, p_context, p_codec,
Gildas Bazin's avatar
 
Gildas Bazin committed
326 327
                                       i_codec_id, psz_namecodec );
        break;
328 329 330 331 332
    case SPU_ES:
        p_dec->pf_decode_sub = DecodeSubtitle;
        i_result =  InitSubtitleDec( p_dec, p_context, p_codec,
                                     i_codec_id, psz_namecodec );
        break;
Gildas Bazin's avatar
 
Gildas Bazin committed
333 334
    default:
        i_result = VLC_EGENERIC;
335
    }
336

337 338 339 340 341 342 343 344
    if( i_result == VLC_SUCCESS )
    {
        p_dec->p_sys->i_cat = i_cat;
        if( p_context->profile != FF_PROFILE_UNKNOWN)
            p_dec->fmt_in.i_profile = p_context->profile;
        if( p_context->level != FF_LEVEL_UNKNOWN)
            p_dec->fmt_in.i_level = p_context->level;
    }
345

Gildas Bazin's avatar
 
Gildas Bazin committed
346
    return i_result;
347
}
Gildas Bazin's avatar
 
Gildas Bazin committed
348

349
/*****************************************************************************
Gildas Bazin's avatar
 
Gildas Bazin committed
350
 * CloseDecoder: decoder destruction
351
 *****************************************************************************/
Gildas Bazin's avatar
 
Gildas Bazin committed
352
static void CloseDecoder( vlc_object_t *p_this )
353
{
Gildas Bazin's avatar
 
Gildas Bazin committed
354
    decoder_t *p_dec = (decoder_t *)p_this;
Gildas Bazin's avatar
 
Gildas Bazin committed
355
    decoder_sys_t *p_sys = p_dec->p_sys;
356

Gildas Bazin's avatar
 
Gildas Bazin committed
357
    switch( p_sys->i_cat )
358
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
359
    case AUDIO_ES:
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
360
         EndAudioDec ( p_dec );
Gildas Bazin's avatar
 
Gildas Bazin committed
361 362
        break;
    case VIDEO_ES:
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
363
         EndVideoDec ( p_dec );
364 365 366
        break;
    case SPU_ES:
         EndSubtitleDec( p_dec );
Gildas Bazin's avatar
 
Gildas Bazin committed
367
        break;
368
    }
369

370 371
    if( p_sys->p_context )
    {
372
        free( p_sys->p_context->extradata );
Jean-Paul Saman's avatar
Jean-Paul Saman committed
373
        p_sys->p_context->extradata = NULL;
374

375 376
        if( !p_sys->b_delayed_open )
        {
377
            vlc_avcodec_lock();
378
            avcodec_close( p_sys->p_context );
379
            vlc_avcodec_unlock();
380
        }
381 382 383 384
        msg_Dbg( p_dec, "ffmpeg codec (%s) stopped", p_sys->psz_namecodec );
        av_free( p_sys->p_context );
    }

Gildas Bazin's avatar
 
Gildas Bazin committed
385
    free( p_sys );
386
}
387

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
388
void InitLibavcodec( vlc_object_t *p_object )
Gildas Bazin's avatar
 
Gildas Bazin committed
389
{
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
390 391
    static bool b_ffmpeginit = false;

392
    vlc_avcodec_lock();
Gildas Bazin's avatar
 
Gildas Bazin committed
393 394 395 396

    /* *** init ffmpeg library (libavcodec) *** */
    if( !b_ffmpeginit )
    {
397
#if LIBAVCODEC_VERSION_MAJOR < 54
Gildas Bazin's avatar
 
Gildas Bazin committed
398
        avcodec_init();
399
#endif
Gildas Bazin's avatar
 
Gildas Bazin committed
400
        avcodec_register_all();
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
401
        b_ffmpeginit = true;
402

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
403
        msg_Dbg( p_object, "libavcodec initialized (interface 0x%x)",
404
                 LIBAVCODEC_VERSION_INT );
Gildas Bazin's avatar
 
Gildas Bazin committed
405 406
    }
    else
407
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
408 409
        msg_Dbg( p_object, "libavcodec already initialized" );
    }
410

411
    vlc_avcodec_unlock();
Gildas Bazin's avatar
 
Gildas Bazin committed
412
}
413 414 415 416 417 418 419 420 421 422 423 424

/*****************************************************************************
 * ffmpeg_OpenCodec:
 *****************************************************************************/
int ffmpeg_OpenCodec( decoder_t *p_dec )
{
    decoder_sys_t *p_sys = p_dec->p_sys;

    if( p_sys->p_context->extradata_size <= 0 )
    {
        if( p_sys->i_codec_id == CODEC_ID_VC1 ||
            p_sys->i_codec_id == CODEC_ID_VORBIS ||
425 426
            p_sys->i_codec_id == CODEC_ID_THEORA ||
            p_sys->i_codec_id == CODEC_ID_AAC )
427 428 429 430 431 432
        {
            msg_Warn( p_dec, "waiting for extra data for codec %s",
                      p_sys->psz_namecodec );
            return 1;
        }
    }
433 434 435 436 437 438 439 440 441 442
    if( p_dec->fmt_in.i_cat == VIDEO_ES )
    {
        p_sys->p_context->width  = p_dec->fmt_in.video.i_width;
        p_sys->p_context->height = p_dec->fmt_in.video.i_height;
        p_sys->p_context->bits_per_coded_sample = p_dec->fmt_in.video.i_bits_per_pixel;
    }
    else if( p_dec->fmt_in.i_cat == AUDIO_ES )
    {
        p_sys->p_context->sample_rate = p_dec->fmt_in.audio.i_rate;
        p_sys->p_context->channels = p_dec->fmt_in.audio.i_channels;
443

444 445 446 447
        p_sys->p_context->block_align = p_dec->fmt_in.audio.i_blockalign;
        p_sys->p_context->bit_rate = p_dec->fmt_in.i_bitrate;
        p_sys->p_context->bits_per_coded_sample = p_dec->fmt_in.audio.i_bitspersample;
    }
448 449
    int ret;
    vlc_avcodec_lock();
450 451 452
#if LIBAVCODEC_VERSION_MAJOR >= 54
    ret = avcodec_open2( p_sys->p_context, p_sys->p_codec, NULL /* options */ );
#else
453
    ret = avcodec_open( p_sys->p_context, p_sys->p_codec );
454
#endif
455 456 457 458 459 460
    vlc_avcodec_unlock();
    if( ret < 0 )
        return VLC_EGENERIC;
    msg_Dbg( p_dec, "ffmpeg codec (%s) started", p_sys->psz_namecodec );

#ifdef HAVE_AVCODEC_MT
461
    if( p_dec->fmt_in.i_cat == VIDEO_ES )
462
    {
463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481
        switch( p_sys->p_context->active_thread_type )
        {
            case FF_THREAD_FRAME:
                msg_Dbg( p_dec, "using frame thread mode with %d threads",
                         p_sys->p_context->thread_count );
                break;
            case FF_THREAD_SLICE:
                msg_Dbg( p_dec, "using slice thread mode with %d threads",
                         p_sys->p_context->thread_count );
                break;
            case 0:
                if( p_sys->p_context->thread_count > 1 )
                    msg_Warn( p_dec, "failed to enable threaded decoding" );
                break;
            default:
                msg_Warn( p_dec, "using unknown thread mode with %d threads",
                          p_sys->p_context->thread_count );
                break;
        }
482 483 484 485 486 487 488
    }
#endif

    p_sys->b_delayed_open = false;

    return VLC_SUCCESS;
}