git.sesse.net Git - mlt/blob - src/modules/avformat/producer_avformat.c

   1 /*
   2  * producer_avformat.c -- avformat producer
   3  * Copyright (C) 2003-2009 Ushodaya Enterprises Limited
   4  * Author: Charles Yates <charles.yates@pandora.be>
   5  * Author: Dan Dennedy <dan@dennedy.org>
   6  * Much code borrowed from ffmpeg.c: Copyright (c) 2000-2003 Fabrice Bellard
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 // MLT Header files
  24 #include <framework/mlt_producer.h>
  25 #include <framework/mlt_frame.h>
  26 #include <framework/mlt_profile.h>
  27 #include <framework/mlt_log.h>
  28 #include <framework/mlt_deque.h>
  29 #include <framework/mlt_factory.h>
  30 #include <framework/mlt_cache.h>
  31
  32 // ffmpeg Header files
  33 #include <libavformat/avformat.h>
  34 #ifdef SWSCALE
  35 #  include <libswscale/swscale.h>
  36 #endif
  37 #if LIBAVCODEC_VERSION_MAJOR > 52
  38 #include <libavutil/samplefmt.h>
  39 #elif (LIBAVCODEC_VERSION_INT >= ((51<<16)+(71<<8)+0))
  40 const char *avcodec_get_sample_fmt_name(int sample_fmt);
  41 #endif
  42 #ifdef VDPAU
  43 #  include <libavcodec/vdpau.h>
  44 #endif
  45 #if (LIBAVUTIL_VERSION_INT > ((50<<16)+(7<<8)+0))
  46 #  include <libavutil/pixdesc.h>
  47 #endif
  48
  49 // System header files
  50 #include <stdlib.h>
  51 #include <string.h>
  52 #include <pthread.h>
  53 #include <limits.h>
  54
  55 #if LIBAVUTIL_VERSION_INT < (50<<16)
  56 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
  57 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
  58 #endif
  59
  60 #if LIBAVCODEC_VERSION_MAJOR > 52
  61 #include <libavutil/opt.h>
  62 #define CODEC_TYPE_VIDEO      AVMEDIA_TYPE_VIDEO
  63 #define CODEC_TYPE_AUDIO      AVMEDIA_TYPE_AUDIO
  64 #define PKT_FLAG_KEY AV_PKT_FLAG_KEY
  65 #else
  66 #include <libavcodec/opt.h>
  67 #endif
  68
  69 #define POSITION_INITIAL (-2)
  70 #define POSITION_INVALID (-1)
  71
  72 #define MAX_AUDIO_STREAMS (10)
  73 #define MAX_VDPAU_SURFACES (10)
  74
  75 void avformat_lock( );
  76 void avformat_unlock( );
  77
  78 struct producer_avformat_s
  79 {
  80         mlt_producer parent;
  81         AVFormatContext *dummy_context;
  82         AVFormatContext *audio_format;
  83         AVFormatContext *video_format;
  84         AVCodecContext *audio_codec[ MAX_AUDIO_STREAMS ];
  85         AVCodecContext *video_codec;
  86         AVFrame *av_frame;
  87         ReSampleContext *audio_resample[ MAX_AUDIO_STREAMS ];
  88         mlt_position audio_expected;
  89         mlt_position video_expected;
  90         int audio_index;
  91         int video_index;
  92         double start_time;
  93         int first_pts;
  94         int last_position;
  95         int seekable;
  96         int current_position;
  97         int got_picture;
  98         int top_field_first;
  99         int16_t *audio_buffer[ MAX_AUDIO_STREAMS ];
 100         size_t audio_buffer_size[ MAX_AUDIO_STREAMS ];
 101         int16_t *decode_buffer[ MAX_AUDIO_STREAMS ];
 102         int audio_used[ MAX_AUDIO_STREAMS ];
 103         int audio_streams;
 104         int audio_max_stream;
 105         int total_channels;
 106         int max_channel;
 107         int max_frequency;
 108         unsigned int invalid_pts_counter;
 109         double resample_factor;
 110         mlt_cache image_cache;
 111         int colorspace;
 112         pthread_mutex_t video_mutex;
 113         pthread_mutex_t audio_mutex;
 114 #ifdef VDPAU
 115         struct
 116         {
 117                 // from FFmpeg
 118                 struct vdpau_render_state render_states[MAX_VDPAU_SURFACES];
 119
 120                 // internal
 121                 mlt_deque deque;
 122                 int b_age;
 123                 int ip_age[2];
 124                 int is_decoded;
 125                 uint8_t *buffer;
 126         } *vdpau;
 127 #endif
 128 };
 129 typedef struct producer_avformat_s *producer_avformat;
 130
 131 // Forward references.
 132 static int producer_open( producer_avformat self, mlt_profile profile, char *file );
 133 static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index );
 134 static void producer_avformat_close( producer_avformat );
 135 static void producer_close( mlt_producer parent );
 136 static void producer_set_up_video( producer_avformat self, mlt_frame frame );
 137 static void producer_set_up_audio( producer_avformat self, mlt_frame frame );
 138 static void apply_properties( void *obj, mlt_properties properties, int flags );
 139 static int video_codec_init( producer_avformat self, int index, mlt_properties properties );
 140
 141 #ifdef VDPAU
 142 #include "vdpau.c"
 143 #endif
 144
 145 /** Constructor for libavformat.
 146 */
 147
 148 mlt_producer producer_avformat_init( mlt_profile profile, const char *service, char *file )
 149 {
 150         int skip = 0;
 151
 152         // Report information about available demuxers and codecs as YAML Tiny
 153         if ( file && strstr( file, "f-list" ) )
 154         {
 155                 fprintf( stderr, "---\nformats:\n" );
 156                 AVInputFormat *format = NULL;
 157                 while ( ( format = av_iformat_next( format ) ) )
 158                         fprintf( stderr, "  - %s\n", format->name );
 159                 fprintf( stderr, "...\n" );
 160                 skip = 1;
 161         }
 162         if ( file && strstr( file, "acodec-list" ) )
 163         {
 164                 fprintf( stderr, "---\naudio_codecs:\n" );
 165                 AVCodec *codec = NULL;
 166                 while ( ( codec = av_codec_next( codec ) ) )
 167                         if ( codec->decode && codec->type == CODEC_TYPE_AUDIO )
 168                                 fprintf( stderr, "  - %s\n", codec->name );
 169                 fprintf( stderr, "...\n" );
 170                 skip = 1;
 171         }
 172         if ( file && strstr( file, "vcodec-list" ) )
 173         {
 174                 fprintf( stderr, "---\nvideo_codecs:\n" );
 175                 AVCodec *codec = NULL;
 176                 while ( ( codec = av_codec_next( codec ) ) )
 177                         if ( codec->decode && codec->type == CODEC_TYPE_VIDEO )
 178                                 fprintf( stderr, "  - %s\n", codec->name );
 179                 fprintf( stderr, "...\n" );
 180                 skip = 1;
 181         }
 182
 183         // Check that we have a non-NULL argument
 184         if ( !skip && file )
 185         {
 186                 // Construct the producer
 187                 mlt_producer producer = calloc( 1, sizeof( struct mlt_producer_s ) );
 188                 producer_avformat self = calloc( 1, sizeof( struct producer_avformat_s ) );
 189
 190                 // Initialise it
 191                 if ( mlt_producer_init( producer, self ) == 0 )
 192                 {
 193                         self->parent = producer;
 194
 195                         // Get the properties
 196                         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
 197
 198                         // Set the resource property (required for all producers)
 199                         mlt_properties_set( properties, "resource", file );
 200
 201                         // Register transport implementation with the producer
 202                         producer->close = (mlt_destructor) producer_close;
 203
 204                         // Register our get_frame implementation
 205                         producer->get_frame = producer_get_frame;
 206
 207                         if ( strcmp( service, "avformat-novalidate" ) )
 208                         {
 209                                 // Open the file
 210                                 if ( producer_open( self, profile, file ) != 0 )
 211                                 {
 212                                         // Clean up
 213                                         mlt_producer_close( producer );
 214                                         producer = NULL;
 215                                 }
 216                                 else
 217                                 {
 218                                         // Close the file to release resources for large playlists - reopen later as needed
 219                                         avformat_lock();
 220                                         if ( self->dummy_context )
 221                                                 av_close_input_file( self->dummy_context );
 222                                         self->dummy_context = NULL;
 223                                         if ( self->audio_format )
 224                                                 av_close_input_file( self->audio_format );
 225                                         self->audio_format = NULL;
 226                                         if ( self->video_format )
 227                                                 av_close_input_file( self->video_format );
 228                                         self->video_format = NULL;
 229                                         avformat_unlock();
 230
 231                                         // Default the user-selectable indices from the auto-detected indices
 232                                         mlt_properties_set_int( properties, "audio_index",  self->audio_index );
 233                                         mlt_properties_set_int( properties, "video_index",  self->video_index );
 234
 235 #ifdef VDPAU
 236                                         mlt_service_cache_set_size( MLT_PRODUCER_SERVICE(producer), "producer_avformat", 5 );
 237 #endif
 238                                         mlt_service_cache_put( MLT_PRODUCER_SERVICE(producer), "producer_avformat", self, 0, (mlt_destructor) producer_avformat_close );
 239                                 }
 240                         }
 241                         else
 242                         {
 243 #ifdef VDPAU
 244                                 mlt_service_cache_set_size( MLT_PRODUCER_SERVICE(producer), "producer_avformat", 5 );
 245 #endif
 246                                 mlt_service_cache_put( MLT_PRODUCER_SERVICE(producer), "producer_avformat", self, 0, (mlt_destructor) producer_avformat_close );
 247                         }
 248                         return producer;
 249                 }
 250         }
 251         return NULL;
 252 }
 253
 254 /** Find the default streams.
 255 */
 256
 257 static mlt_properties find_default_streams( mlt_properties meta_media, AVFormatContext *context, int *audio_index, int *video_index )
 258 {
 259         int i;
 260         char key[200];
 261         AVMetadataTag *tag = NULL;
 262
 263         mlt_properties_set_int( meta_media, "meta.media.nb_streams", context->nb_streams );
 264
 265         // Allow for multiple audio and video streams in the file and select first of each (if available)
 266         for( i = 0; i < context->nb_streams; i++ )
 267         {
 268                 // Get the codec context
 269                 AVStream *stream = context->streams[ i ];
 270                 if ( ! stream ) continue;
 271                 AVCodecContext *codec_context = stream->codec;
 272                 if ( ! codec_context ) continue;
 273                 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
 274                 if ( ! codec ) continue;
 275
 276                 snprintf( key, sizeof(key), "meta.media.%d.stream.type", i );
 277
 278                 // Determine the type and obtain the first index of each type
 279                 switch( codec_context->codec_type )
 280                 {
 281                         case CODEC_TYPE_VIDEO:
 282                                 if ( *video_index < 0 )
 283                                         *video_index = i;
 284                                 mlt_properties_set( meta_media, key, "video" );
 285                                 snprintf( key, sizeof(key), "meta.media.%d.stream.frame_rate", i );
 286 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(42<<8)+0)
 287                                 double ffmpeg_fps = av_q2d( context->streams[ i ]->avg_frame_rate );
 288                                 if ( isnan( ffmpeg_fps ) || ffmpeg_fps == 0 )
 289                                         ffmpeg_fps = av_q2d( context->streams[ i ]->r_frame_rate );
 290                                 mlt_properties_set_double( meta_media, key, ffmpeg_fps );
 291 #else
 292                                 mlt_properties_set_double( meta_media, key, av_q2d( context->streams[ i ]->r_frame_rate ) );
 293 #endif
 294
 295 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 296                                 snprintf( key, sizeof(key), "meta.media.%d.stream.sample_aspect_ratio", i );
 297                                 mlt_properties_set_double( meta_media, key, av_q2d( context->streams[ i ]->sample_aspect_ratio ) );
 298 #endif
 299                                 snprintf( key, sizeof(key), "meta.media.%d.codec.frame_rate", i );
 300                                 mlt_properties_set_double( meta_media, key, (double) codec_context->time_base.den /
 301                                                                                    ( codec_context->time_base.num == 0 ? 1 : codec_context->time_base.num ) );
 302                                 snprintf( key, sizeof(key), "meta.media.%d.codec.pix_fmt", i );
 303                                 mlt_properties_set( meta_media, key, avcodec_get_pix_fmt_name( codec_context->pix_fmt ) );
 304                                 snprintf( key, sizeof(key), "meta.media.%d.codec.sample_aspect_ratio", i );
 305                                 mlt_properties_set_double( meta_media, key, av_q2d( codec_context->sample_aspect_ratio ) );
 306 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
 307                                 snprintf( key, sizeof(key), "meta.media.%d.codec.colorspace", i );
 308                                 switch ( codec_context->colorspace )
 309                                 {
 310                                 case AVCOL_SPC_SMPTE240M:
 311                                         mlt_properties_set_int( meta_media, key, 240 );
 312                                         break;
 313                                 case AVCOL_SPC_BT470BG:
 314                                 case AVCOL_SPC_SMPTE170M:
 315                                         mlt_properties_set_int( meta_media, key, 601 );
 316                                         break;
 317                                 case AVCOL_SPC_BT709:
 318                                         mlt_properties_set_int( meta_media, key, 709 );
 319                                         break;
 320                                 default:
 321                                         // This is a heuristic Charles Poynton suggests in "Digital Video and HDTV"
 322                                         mlt_properties_set_int( meta_media, key, codec_context->width * codec_context->height > 750000 ? 709 : 601 );
 323                                         break;
 324                                 }
 325 #endif
 326                                 break;
 327                         case CODEC_TYPE_AUDIO:
 328                                 if ( *audio_index < 0 )
 329                                         *audio_index = i;
 330                                 mlt_properties_set( meta_media, key, "audio" );
 331 #if LIBAVCODEC_VERSION_MAJOR > 52
 332                                 snprintf( key, sizeof(key), "meta.media.%d.codec.sample_fmt", i );
 333                                 mlt_properties_set( meta_media, key, av_get_sample_fmt_name( codec_context->sample_fmt ) );
 334 #elif (LIBAVCODEC_VERSION_INT >= ((51<<16)+(71<<8)+0))
 335                                 snprintf( key, sizeof(key), "meta.media.%d.codec.sample_fmt", i );
 336                                 mlt_properties_set( meta_media, key, avcodec_get_sample_fmt_name( codec_context->sample_fmt ) );
 337 #endif
 338                                 snprintf( key, sizeof(key), "meta.media.%d.codec.sample_rate", i );
 339                                 mlt_properties_set_int( meta_media, key, codec_context->sample_rate );
 340                                 snprintf( key, sizeof(key), "meta.media.%d.codec.channels", i );
 341                                 mlt_properties_set_int( meta_media, key, codec_context->channels );
 342                                 break;
 343                         default:
 344                                 break;
 345                 }
 346 //              snprintf( key, sizeof(key), "meta.media.%d.stream.time_base", i );
 347 //              mlt_properties_set_double( meta_media, key, av_q2d( context->streams[ i ]->time_base ) );
 348                 snprintf( key, sizeof(key), "meta.media.%d.codec.name", i );
 349                 mlt_properties_set( meta_media, key, codec->name );
 350 #if (LIBAVCODEC_VERSION_INT >= ((51<<16)+(55<<8)+0))
 351                 snprintf( key, sizeof(key), "meta.media.%d.codec.long_name", i );
 352                 mlt_properties_set( meta_media, key, codec->long_name );
 353 #endif
 354                 snprintf( key, sizeof(key), "meta.media.%d.codec.bit_rate", i );
 355                 mlt_properties_set_int( meta_media, key, codec_context->bit_rate );
 356 //              snprintf( key, sizeof(key), "meta.media.%d.codec.time_base", i );
 357 //              mlt_properties_set_double( meta_media, key, av_q2d( codec_context->time_base ) );
 358 //              snprintf( key, sizeof(key), "meta.media.%d.codec.profile", i );
 359 //              mlt_properties_set_int( meta_media, key, codec_context->profile );
 360 //              snprintf( key, sizeof(key), "meta.media.%d.codec.level", i );
 361 //              mlt_properties_set_int( meta_media, key, codec_context->level );
 362
 363                 // Read Metadata
 364 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
 365                 while ( ( tag = av_metadata_get( stream->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX ) ) )
 366                 {
 367                         if ( tag->value && strcmp( tag->value, "" ) && strcmp( tag->value, "und" ) )
 368                         {
 369                                 snprintf( key, sizeof(key), "meta.attr.%d.stream.%s.markup", i, tag->key );
 370                                 mlt_properties_set( meta_media, key, tag->value );
 371                         }
 372                 }
 373 #endif
 374         }
 375 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
 376         while ( ( tag = av_metadata_get( context->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX ) ) )
 377         {
 378                 if ( tag->value && strcmp( tag->value, "" ) && strcmp( tag->value, "und" ) )
 379                 {
 380                         snprintf( key, sizeof(key), "meta.attr.%s.markup", tag->key );
 381                         mlt_properties_set( meta_media, key, tag->value );
 382                 }
 383         }
 384 #else
 385         if ( context->title && strcmp( context->title, "" ) )
 386                 mlt_properties_set(properties, "meta.attr.title.markup", context->title );
 387         if ( context->author && strcmp( context->author, "" ) )
 388                 mlt_properties_set(properties, "meta.attr.author.markup", context->author );
 389         if ( context->copyright && strcmp( context->copyright, "" ) )
 390                 mlt_properties_set(properties, "meta.attr.copyright.markup", context->copyright );
 391         if ( context->comment )
 392                 mlt_properties_set(properties, "meta.attr.comment.markup", context->comment );
 393         if ( context->album )
 394                 mlt_properties_set(properties, "meta.attr.album.markup", context->album );
 395         if ( context->year )
 396                 mlt_properties_set_int(properties, "meta.attr.year.markup", context->year );
 397         if ( context->track )
 398                 mlt_properties_set_int(properties, "meta.attr.track.markup", context->track );
 399 #endif
 400
 401         return meta_media;
 402 }
 403
 404 static inline int dv_is_pal( AVPacket *pkt )
 405 {
 406         return pkt->data[3] & 0x80;
 407 }
 408
 409 static int dv_is_wide( AVPacket *pkt )
 410 {
 411         int i = 80 /* block size */ *3 /* VAUX starts at block 3 */ +3 /* skip block header */;
 412
 413         for ( ; i < pkt->size; i += 5 /* packet size */ )
 414         {
 415                 if ( pkt->data[ i ] == 0x61 )
 416                 {
 417                         uint8_t x = pkt->data[ i + 2 ] & 0x7;
 418                         return ( x == 2 ) || ( x == 7 );
 419                 }
 420         }
 421         return 0;
 422 }
 423
 424 static double get_aspect_ratio( mlt_properties properties, AVStream *stream, AVCodecContext *codec_context, AVPacket *pkt )
 425 {
 426         double aspect_ratio = 1.0;
 427
 428         if ( codec_context->codec_id == CODEC_ID_DVVIDEO )
 429         {
 430                 if ( pkt )
 431                 {
 432                         if ( dv_is_pal( pkt ) )
 433                         {
 434                                 if ( dv_is_wide( pkt ) )
 435                                 {
 436                                         mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 64 );
 437                                         mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 45 );
 438                                 }
 439                                 else
 440                                 {
 441                                         mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 16 );
 442                                         mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 15 );
 443                                 }
 444                         }
 445                         else
 446                         {
 447                                 if ( dv_is_wide( pkt ) )
 448                                 {
 449                                         mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 32 );
 450                                         mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 27 );
 451                                 }
 452                                 else
 453                                 {
 454                                         mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 8 );
 455                                         mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 9 );
 456                                 }
 457                         }
 458                 }
 459                 else
 460                 {
 461                         AVRational ar =
 462 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 463                                 stream->sample_aspect_ratio;
 464 #else
 465                                 codec_context->sample_aspect_ratio;
 466 #endif
 467                         // Override FFmpeg's notion of DV aspect ratios, which are
 468                         // based upon a width of 704. Since we do not have a normaliser
 469                         // that crops (nor is cropping 720 wide ITU-R 601 video always desirable)
 470                         // we just coerce the values to facilitate a passive behaviour through
 471                         // the rescale normaliser when using equivalent producers and consumers.
 472                         // = display_aspect / (width * height)
 473                         if ( ar.num == 10 && ar.den == 11 )
 474                         {
 475                                 // 4:3 NTSC
 476                                 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 8 );
 477                                 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 9 );
 478                         }
 479                         else if ( ar.num == 59 && ar.den == 54 )
 480                         {
 481                                 // 4:3 PAL
 482                                 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 16 );
 483                                 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 15 );
 484                         }
 485                         else if ( ar.num == 40 && ar.den == 33 )
 486                         {
 487                                 // 16:9 NTSC
 488                                 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 32 );
 489                                 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 27 );
 490                         }
 491                         else if ( ar.num == 118 && ar.den == 81 )
 492                         {
 493                                 // 16:9 PAL
 494                                 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 64 );
 495                                 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 45 );
 496                         }
 497                 }
 498         }
 499         else
 500         {
 501                 AVRational codec_sar = codec_context->sample_aspect_ratio;
 502                 AVRational stream_sar =
 503 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 504                         stream->sample_aspect_ratio;
 505 #else
 506                         { 0, 1 };
 507 #endif
 508                 if ( codec_sar.num > 0 )
 509                 {
 510                         mlt_properties_set_int( properties, "meta.media.sample_aspect_num", codec_sar.num );
 511                         mlt_properties_set_int( properties, "meta.media.sample_aspect_den", codec_sar.den );
 512                 }
 513                 else if ( stream_sar.num > 0 )
 514                 {
 515                         mlt_properties_set_int( properties, "meta.media.sample_aspect_num", stream_sar.num );
 516                         mlt_properties_set_int( properties, "meta.media.sample_aspect_den", stream_sar.den );
 517                 }
 518                 else
 519                 {
 520                         mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 1 );
 521                         mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 1 );
 522                 }
 523         }
 524         AVRational ar = { mlt_properties_get_double( properties, "meta.media.sample_aspect_num" ), mlt_properties_get_double( properties, "meta.media.sample_aspect_den" ) };
 525         aspect_ratio = av_q2d( ar );
 526         mlt_properties_set_double( properties, "aspect_ratio", aspect_ratio );
 527
 528         return aspect_ratio;
 529 }
 530
 531 /** Open the file.
 532 */
 533
 534 static int producer_open( producer_avformat self, mlt_profile profile, char *file )
 535 {
 536         // Return an error code (0 == no error)
 537         int error = 0;
 538
 539         // Context for avformat
 540         AVFormatContext *context = NULL;
 541
 542         // Get the properties
 543         mlt_properties properties = MLT_PRODUCER_PROPERTIES( self->parent );
 544
 545         // We will treat everything with the producer fps
 546         double fps = mlt_profile_fps( profile );
 547
 548         // Lock the service
 549         pthread_mutex_init( &self->audio_mutex, NULL );
 550         pthread_mutex_init( &self->video_mutex, NULL );
 551         pthread_mutex_lock( &self->audio_mutex );
 552         pthread_mutex_lock( &self->video_mutex );
 553
 554         // If "MRL", then create AVInputFormat
 555         AVInputFormat *format = NULL;
 556         AVFormatParameters *params = NULL;
 557         char *standard = NULL;
 558         char *mrl = strchr( file, ':' );
 559
 560         // AV option (0 = both, 1 = video, 2 = audio)
 561         int av = 0;
 562
 563         // Only if there is not a protocol specification that avformat can handle
 564         if ( mrl && !url_exist( file ) )
 565         {
 566                 // 'file' becomes format abbreviation
 567                 mrl[0] = 0;
 568
 569                 // Lookup the format
 570                 format = av_find_input_format( file );
 571
 572                 // Eat the format designator
 573                 file = ++mrl;
 574
 575                 if ( format )
 576                 {
 577                         // Allocate params
 578                         params = calloc( sizeof( AVFormatParameters ), 1 );
 579
 580                         // These are required by video4linux (defaults)
 581                         params->width = 640;
 582                         params->height = 480;
 583                         params->time_base= (AVRational){1,25};
 584                         params->channels = 2;
 585                         params->sample_rate = 48000;
 586                 }
 587
 588                 // Parse out params
 589                 mrl = strchr( file, '?' );
 590                 while ( mrl )
 591                 {
 592                         mrl[0] = 0;
 593                         char *name = strdup( ++mrl );
 594                         char *value = strchr( name, ':' );
 595                         if ( value )
 596                         {
 597                                 value[0] = 0;
 598                                 value++;
 599                                 char *t = strchr( value, '&' );
 600                                 if ( t )
 601                                         t[0] = 0;
 602                                 if ( !strcmp( name, "frame_rate" ) )
 603                                         params->time_base.den = atoi( value );
 604                                 else if ( !strcmp( name, "frame_rate_base" ) )
 605                                         params->time_base.num = atoi( value );
 606                                 else if ( !strcmp( name, "sample_rate" ) )
 607                                         params->sample_rate = atoi( value );
 608                                 else if ( !strcmp( name, "channel" ) )
 609                                         params->channel = atoi( value );
 610                                 else if ( !strcmp( name, "channels" ) )
 611                                         params->channels = atoi( value );
 612 #if (LIBAVUTIL_VERSION_INT > ((50<<16)+(7<<8)+0))
 613                                 else if ( !strcmp( name, "pix_fmt" ) )
 614                                         params->pix_fmt = av_get_pix_fmt( value );
 615 #endif
 616                                 else if ( !strcmp( name, "width" ) )
 617                                         params->width = atoi( value );
 618                                 else if ( !strcmp( name, "height" ) )
 619                                         params->height = atoi( value );
 620                                 else if ( !strcmp( name, "standard" ) )
 621                                 {
 622                                         standard = strdup( value );
 623                                         params->standard = standard;
 624                                 }
 625                                 else if ( !strcmp( name, "av" ) )
 626                                         av = atoi( value );
 627                         }
 628                         free( name );
 629                         mrl = strchr( mrl, '&' );
 630                 }
 631         }
 632
 633         // Now attempt to open the file
 634         error = av_open_input_file( &context, file, format, 0, params ) < 0;
 635
 636         // Cleanup AVFormatParameters
 637         free( standard );
 638         free( params );
 639
 640         // If successful, then try to get additional info
 641         if ( !error )
 642         {
 643                 // Get the stream info
 644                 error = av_find_stream_info( context ) < 0;
 645
 646                 // Continue if no error
 647                 if ( !error )
 648                 {
 649                         // We will default to the first audio and video streams found
 650                         int audio_index = -1;
 651                         int video_index = -1;
 652
 653                         // Find default audio and video streams
 654                         find_default_streams( properties, context, &audio_index, &video_index );
 655
 656                         // Now set properties where we can (use default unknowns if required)
 657                         if ( context->duration != AV_NOPTS_VALUE )
 658                         {
 659                                 // This isn't going to be accurate for all formats
 660                                 // Workaround some clips whose estimated duration cause problems:
 661                                 // http://www.kdenlive.org/mantis/view.php?id=2003
 662                                 int adjust = -3;
 663                                 if ( mlt_properties_get( properties, "adjust_length" ) )
 664                                         adjust = mlt_properties_get_int( properties, "adjust_length" );
 665                                 mlt_position frames = ( mlt_position )( ( ( double )context->duration / ( double )AV_TIME_BASE ) * fps + adjust );
 666                                 if  ( mlt_properties_get_position( properties, "force_length" ) > 0 )
 667                                         frames = mlt_properties_get_position( properties, "force_length" );
 668                                 mlt_properties_set_position( properties, "out", frames - 1 );
 669                                 mlt_properties_set_position( properties, "length", frames );
 670                         }
 671
 672                         if ( context->start_time != AV_NOPTS_VALUE )
 673                                 self->start_time = context->start_time;
 674
 675                         // Check if we're seekable
 676                         // avdevices are typically AVFMT_NOFILE and not seekable
 677                         self->seekable = !format || !( format->flags & AVFMT_NOFILE );
 678                         if ( context->pb )
 679                         {
 680                                 // protocols can indicate if they support seeking
 681                                 URLContext *uc = url_fileno( context->pb );
 682                                 if ( uc )
 683                                         self->seekable = !uc->is_streamed;
 684                         }
 685                         if ( self->seekable )
 686                         {
 687                                 self->seekable = av_seek_frame( context, -1, self->start_time, AVSEEK_FLAG_BACKWARD ) >= 0;
 688                                 mlt_properties_set_int( properties, "seekable", self->seekable );
 689                                 self->dummy_context = context;
 690                                 av_open_input_file( &context, file, NULL, 0, NULL );
 691                                 av_find_stream_info( context );
 692                         }
 693
 694                         // Store selected audio and video indexes on properties
 695                         self->audio_index = audio_index;
 696                         self->video_index = video_index;
 697                         self->first_pts = -1;
 698                         self->last_position = POSITION_INITIAL;
 699
 700                         // Fetch the width, height and aspect ratio
 701                         if ( video_index != -1 )
 702                         {
 703                                 AVCodecContext *codec_context = context->streams[ video_index ]->codec;
 704                                 mlt_properties_set_int( properties, "width", codec_context->width );
 705                                 mlt_properties_set_int( properties, "height", codec_context->height );
 706
 707                                 if ( codec_context->codec_id == CODEC_ID_DVVIDEO )
 708                                 {
 709                                         // Fetch the first frame of DV so we can read it directly
 710                                         AVPacket pkt;
 711                                         int ret = 0;
 712                                         while ( ret >= 0 )
 713                                         {
 714                                                 ret = av_read_frame( context, &pkt );
 715                                                 if ( ret >= 0 && pkt.stream_index == video_index && pkt.size > 0 )
 716                                                 {
 717                                                         get_aspect_ratio( properties, context->streams[ video_index ], codec_context, &pkt );
 718                                                         break;
 719                                                 }
 720                                         }
 721                                 }
 722                                 else
 723                                 {
 724                                         get_aspect_ratio( properties, context->streams[ video_index ], codec_context, NULL );
 725                                 }
 726 #ifdef SWSCALE
 727                                 struct SwsContext *context = sws_getContext( codec_context->width, codec_context->height, codec_context->pix_fmt,
 728                                         codec_context->width, codec_context->height, PIX_FMT_YUYV422, SWS_BILINEAR, NULL, NULL, NULL);
 729                                 if ( context )
 730                                         sws_freeContext( context );
 731                                 else
 732                                         error = 1;
 733 #endif
 734                         }
 735
 736                         // We're going to cheat here - for a/v files, we will have two contexts (reasoning will be clear later)
 737                         if ( av == 0 && audio_index != -1 && video_index != -1 )
 738                         {
 739                                 // We'll use the open one as our video_format
 740                                 self->video_format = context;
 741
 742                                 // And open again for our audio context
 743                                 av_open_input_file( &context, file, NULL, 0, NULL );
 744                                 av_find_stream_info( context );
 745
 746                                 // Audio context
 747                                 self->audio_format = context;
 748                         }
 749                         else if ( av != 2 && video_index != -1 )
 750                         {
 751                                 // We only have a video context
 752                                 self->video_format = context;
 753                         }
 754                         else if ( audio_index != -1 )
 755                         {
 756                                 // We only have an audio context
 757                                 self->audio_format = context;
 758                         }
 759                         else
 760                         {
 761                                 // Something has gone wrong
 762                                 error = -1;
 763                         }
 764                 }
 765         }
 766
 767         // Unlock the service
 768         pthread_mutex_unlock( &self->audio_mutex );
 769         pthread_mutex_unlock( &self->video_mutex );
 770
 771         return error;
 772 }
 773
 774 void reopen_video( producer_avformat self, mlt_producer producer, mlt_properties properties )
 775 {
 776         mlt_service_lock( MLT_PRODUCER_SERVICE( producer ) );
 777         pthread_mutex_lock( &self->audio_mutex );
 778
 779         if ( self->video_codec )
 780         {
 781                 avformat_lock();
 782                 avcodec_close( self->video_codec );
 783                 avformat_unlock();
 784         }
 785         self->video_codec = NULL;
 786         if ( self->dummy_context )
 787                 av_close_input_file( self->dummy_context );
 788         self->dummy_context = NULL;
 789         if ( self->video_format )
 790                 av_close_input_file( self->video_format );
 791         self->video_format = NULL;
 792
 793         int audio_index = self->audio_index;
 794         int video_index = self->video_index;
 795
 796         mlt_events_block( properties, producer );
 797         pthread_mutex_unlock( &self->audio_mutex );
 798         pthread_mutex_unlock( &self->video_mutex );
 799         producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
 800                 mlt_properties_get( properties, "resource" ) );
 801         pthread_mutex_lock( &self->video_mutex );
 802         pthread_mutex_lock( &self->audio_mutex );
 803         if ( self->dummy_context )
 804         {
 805                 av_close_input_file( self->dummy_context );
 806                 self->dummy_context = NULL;
 807         }
 808         mlt_events_unblock( properties, producer );
 809         apply_properties( self->video_format, properties, AV_OPT_FLAG_DECODING_PARAM );
 810
 811         self->audio_index = audio_index;
 812         if ( self->video_format && video_index > -1 )
 813         {
 814                 self->video_index = video_index;
 815                 video_codec_init( self, video_index, properties );
 816         }
 817
 818         pthread_mutex_unlock( &self->audio_mutex );
 819         mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
 820 }
 821
 822 /** Convert a frame position to a time code.
 823 */
 824
 825 static double producer_time_of_frame( mlt_producer producer, mlt_position position )
 826 {
 827         return ( double )position / mlt_producer_get_fps( producer );
 828 }
 829
 830 // Collect information about all audio streams
 831
 832 static void get_audio_streams_info( producer_avformat self )
 833 {
 834         // Fetch the audio format context
 835         AVFormatContext *context = self->audio_format;
 836         int i;
 837
 838         for ( i = 0;
 839                   i < context->nb_streams;
 840                   i++ )
 841         {
 842                 if ( context->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO )
 843                 {
 844                         AVCodecContext *codec_context = context->streams[i]->codec;
 845                         AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
 846
 847                         // If we don't have a codec and we can't initialise it, we can't do much more...
 848                         avformat_lock( );
 849                         if ( codec && avcodec_open( codec_context, codec ) >= 0 )
 850                         {
 851                                 self->audio_streams++;
 852                                 self->audio_max_stream = i;
 853                                 self->total_channels += codec_context->channels;
 854                                 if ( codec_context->channels > self->max_channel )
 855                                         self->max_channel = codec_context->channels;
 856                                 if ( codec_context->sample_rate > self->max_frequency )
 857                                         self->max_frequency = codec_context->sample_rate;
 858                                 avcodec_close( codec_context );
 859                         }
 860                         avformat_unlock( );
 861                 }
 862         }
 863         mlt_log_verbose( NULL, "[producer avformat] audio: total_streams %d max_stream %d total_channels %d max_channels %d\n",
 864                 self->audio_streams, self->audio_max_stream, self->total_channels, self->max_channel );
 865
 866         // Other audio-specific initializations
 867         self->resample_factor = 1.0;
 868 }
 869
 870 static void set_luma_transfer( struct SwsContext *context, int colorspace, int use_full_range )
 871 {
 872 #if defined(SWSCALE) && (LIBSWSCALE_VERSION_INT >= ((0<<16)+(7<<8)+2))
 873         int *coefficients;
 874         const int *new_coefficients;
 875         int full_range;
 876         int brightness, contrast, saturation;
 877
 878         if ( sws_getColorspaceDetails( context, &coefficients, &full_range, &coefficients, &full_range,
 879                         &brightness, &contrast, &saturation ) != -1 )
 880         {
 881                 // Don't change these from defaults unless explicitly told to.
 882                 if ( use_full_range >= 0 )
 883                         full_range = use_full_range;
 884                 switch ( colorspace )
 885                 {
 886                 case 170:
 887                 case 470:
 888                 case 601:
 889                 case 624:
 890                         new_coefficients = sws_getCoefficients( SWS_CS_ITU601 );
 891                         break;
 892                 case 240:
 893                         new_coefficients = sws_getCoefficients( SWS_CS_SMPTE240M );
 894                         break;
 895                 case 709:
 896                         new_coefficients = sws_getCoefficients( SWS_CS_ITU709 );
 897                         break;
 898                 default:
 899                         new_coefficients = coefficients;
 900                         break;
 901                 }
 902                 sws_setColorspaceDetails( context, new_coefficients, full_range, new_coefficients, full_range,
 903                         brightness, contrast, saturation );
 904         }
 905 #endif
 906 }
 907
 908 static inline void convert_image( AVFrame *frame, uint8_t *buffer, int pix_fmt,
 909         mlt_image_format *format, int width, int height, int colorspace )
 910 {
 911 #ifdef SWSCALE
 912         int full_range = -1;
 913         int flags = SWS_BILINEAR | SWS_ACCURATE_RND;
 914
 915 #ifdef USE_MMX
 916         flags |= SWS_CPU_CAPS_MMX;
 917 #endif
 918 #ifdef USE_SSE
 919         flags |= SWS_CPU_CAPS_MMX2;
 920 #endif
 921
 922         if ( pix_fmt == PIX_FMT_RGB32 )
 923         {
 924                 *format = mlt_image_rgb24a;
 925                 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
 926                         width, height, PIX_FMT_RGBA, flags, NULL, NULL, NULL);
 927                 AVPicture output;
 928                 avpicture_fill( &output, buffer, PIX_FMT_RGBA, width, height );
 929                 set_luma_transfer( context, colorspace, full_range );
 930                 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
 931                         output.data, output.linesize);
 932                 sws_freeContext( context );
 933         }
 934         else if ( *format == mlt_image_yuv420p )
 935         {
 936                 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
 937                         width, height, PIX_FMT_YUV420P, flags, NULL, NULL, NULL);
 938                 AVPicture output;
 939                 output.data[0] = buffer;
 940                 output.data[1] = buffer + width * height;
 941                 output.data[2] = buffer + ( 5 * width * height ) / 4;
 942                 output.linesize[0] = width;
 943                 output.linesize[1] = width >> 1;
 944                 output.linesize[2] = width >> 1;
 945                 set_luma_transfer( context, colorspace, full_range );
 946                 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
 947                         output.data, output.linesize);
 948                 sws_freeContext( context );
 949         }
 950         else if ( *format == mlt_image_rgb24 )
 951         {
 952                 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
 953                         width, height, PIX_FMT_RGB24, flags | SWS_FULL_CHR_H_INT, NULL, NULL, NULL);
 954                 AVPicture output;
 955                 avpicture_fill( &output, buffer, PIX_FMT_RGB24, width, height );
 956                 set_luma_transfer( context, colorspace, full_range );
 957                 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
 958                         output.data, output.linesize);
 959                 sws_freeContext( context );
 960         }
 961         else if ( *format == mlt_image_rgb24a || *format == mlt_image_opengl )
 962         {
 963                 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
 964                         width, height, PIX_FMT_RGBA, flags | SWS_FULL_CHR_H_INT, NULL, NULL, NULL);
 965                 AVPicture output;
 966                 avpicture_fill( &output, buffer, PIX_FMT_RGBA, width, height );
 967                 set_luma_transfer( context, colorspace, full_range );
 968                 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
 969                         output.data, output.linesize);
 970                 sws_freeContext( context );
 971         }
 972         else
 973         {
 974                 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
 975                         width, height, PIX_FMT_YUYV422, flags | SWS_FULL_CHR_H_INP, NULL, NULL, NULL);
 976                 AVPicture output;
 977                 avpicture_fill( &output, buffer, PIX_FMT_YUYV422, width, height );
 978                 set_luma_transfer( context, colorspace, full_range );
 979                 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
 980                         output.data, output.linesize);
 981                 sws_freeContext( context );
 982         }
 983 #else
 984         if ( *format == mlt_image_yuv420p )
 985         {
 986                 AVPicture pict;
 987                 pict.data[0] = buffer;
 988                 pict.data[1] = buffer + width * height;
 989                 pict.data[2] = buffer + ( 5 * width * height ) / 4;
 990                 pict.linesize[0] = width;
 991                 pict.linesize[1] = width >> 1;
 992                 pict.linesize[2] = width >> 1;
 993                 img_convert( &pict, PIX_FMT_YUV420P, (AVPicture *)frame, pix_fmt, width, height );
 994         }
 995         else if ( *format == mlt_image_rgb24 )
 996         {
 997                 AVPicture output;
 998                 avpicture_fill( &output, buffer, PIX_FMT_RGB24, width, height );
 999                 img_convert( &output, PIX_FMT_RGB24, (AVPicture *)frame, pix_fmt, width, height );
1000         }
1001         else if ( format == mlt_image_rgb24a || format == mlt_image_opengl )
1002         {
1003                 AVPicture output;
1004                 avpicture_fill( &output, buffer, PIX_FMT_RGB32, width, height );
1005                 img_convert( &output, PIX_FMT_RGB32, (AVPicture *)frame, pix_fmt, width, height );
1006         }
1007         else
1008         {
1009                 AVPicture output;
1010                 avpicture_fill( &output, buffer, PIX_FMT_YUYV422, width, height );
1011                 img_convert( &output, PIX_FMT_YUYV422, (AVPicture *)frame, pix_fmt, width, height );
1012         }
1013 #endif
1014 }
1015
1016 /** Allocate the image buffer and set it on the frame.
1017 */
1018
1019 static int allocate_buffer( mlt_frame frame, AVCodecContext *codec_context, uint8_t **buffer, mlt_image_format *format, int *width, int *height )
1020 {
1021         int size = 0;
1022
1023         if ( codec_context->width == 0 || codec_context->height == 0 )
1024                 return size;
1025
1026         *width = codec_context->width;
1027         *height = codec_context->height;
1028
1029         if ( codec_context->pix_fmt == PIX_FMT_RGB32 )
1030                 size = *width * ( *height + 1 ) * 4;
1031         else
1032                 size = mlt_image_format_size( *format, *width, *height, NULL );
1033
1034         // Construct the output image
1035         *buffer = mlt_pool_alloc( size );
1036         if ( *buffer )
1037                 mlt_frame_set_image( frame, *buffer, size, mlt_pool_release );
1038         else
1039                 size = 0;
1040
1041         return size;
1042 }
1043
1044 /** Get an image from a frame.
1045 */
1046
1047 static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
1048 {
1049         // Get the producer
1050         producer_avformat self = mlt_frame_pop_service( frame );
1051         mlt_producer producer = self->parent;
1052
1053         // Get the properties from the frame
1054         mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
1055
1056         // Obtain the frame number of this frame
1057         mlt_position position = mlt_properties_get_position( frame_properties, "avformat_position" );
1058
1059         // Get the producer properties
1060         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
1061
1062         pthread_mutex_lock( &self->video_mutex );
1063
1064         // Fetch the video format context
1065         AVFormatContext *context = self->video_format;
1066
1067         // Get the video stream
1068         AVStream *stream = context->streams[ self->video_index ];
1069
1070         // Get codec context
1071         AVCodecContext *codec_context = stream->codec;
1072
1073         // Get the image cache
1074         if ( ! self->image_cache && ! mlt_properties_get_int( properties, "noimagecache" ) )
1075                 self->image_cache = mlt_cache_init();
1076         if ( self->image_cache )
1077         {
1078                 mlt_cache_item item = mlt_cache_get( self->image_cache, (void*) position );
1079                 *buffer = mlt_cache_item_data( item, (int*) format );
1080                 if ( *buffer )
1081                 {
1082                         // Set the resolution
1083                         *width = codec_context->width;
1084                         *height = codec_context->height;
1085
1086                         // Workaround 1088 encodings missing cropping info.
1087                         if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1088                                 *height = 1080;
1089
1090                         // Cache hit
1091                         int size = mlt_image_format_size( *format, *width, *height, NULL );
1092                         mlt_properties_set_data( frame_properties, "avformat.image_cache", item, 0, ( mlt_destructor )mlt_cache_item_close, NULL );
1093                         mlt_frame_set_image( frame, *buffer, size, NULL );
1094                         // self->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1095                         self->got_picture = 1;
1096
1097                         goto exit_get_image;
1098                 }
1099         }
1100         // Cache miss
1101         int image_size = 0;
1102
1103         // Packet
1104         AVPacket pkt;
1105
1106         // Special case pause handling flag
1107         int paused = 0;
1108
1109         // Special case ffwd handling
1110         int ignore = 0;
1111
1112         // We may want to use the source fps if available
1113         double source_fps = mlt_properties_get_double( properties, "meta.media.frame_rate_num" ) /
1114                 mlt_properties_get_double( properties, "meta.media.frame_rate_den" );
1115         double fps = mlt_producer_get_fps( producer );
1116
1117         // This is the physical frame position in the source
1118         int req_position = ( int )( position / fps * source_fps + 0.5 );
1119
1120         // Determines if we have to decode all frames in a sequence
1121         // Temporary hack to improve intra frame only
1122         int must_decode = strcmp( codec_context->codec->name, "dnxhd" ) &&
1123                                   strcmp( codec_context->codec->name, "dvvideo" ) &&
1124                                   strcmp( codec_context->codec->name, "huffyuv" ) &&
1125                                   strcmp( codec_context->codec->name, "mjpeg" ) &&
1126                                   strcmp( codec_context->codec->name, "rawvideo" );
1127
1128         int last_position = self->last_position;
1129
1130         // Turn on usage of new seek API and PTS for seeking
1131         int use_new_seek = codec_context->codec_id == CODEC_ID_H264 && !strcmp( context->iformat->name, "mpegts" );
1132         if ( mlt_properties_get( properties, "new_seek" ) )
1133                 use_new_seek = mlt_properties_get_int( properties, "new_seek" );
1134
1135         // Seek if necessary
1136         if ( position != self->video_expected || last_position < 0 )
1137         {
1138                 if ( self->av_frame && position + 1 == self->video_expected )
1139                 {
1140                         // We're paused - use last image
1141                         paused = 1;
1142                 }
1143                 else if ( !self->seekable && position > self->video_expected && ( position - self->video_expected ) < 250 )
1144                 {
1145                         // Fast forward - seeking is inefficient for small distances - just ignore following frames
1146                         ignore = ( int )( ( position - self->video_expected ) / fps * source_fps );
1147                         codec_context->skip_loop_filter = AVDISCARD_NONREF;
1148                 }
1149                 else if ( self->seekable && ( position < self->video_expected || position - self->video_expected >= 12 || last_position < 0 ) )
1150                 {
1151                         if ( use_new_seek && last_position == POSITION_INITIAL )
1152                         {
1153                                 // find first key frame
1154                                 int ret = 0;
1155                                 int toscan = 100;
1156
1157                                 while ( ret >= 0 && toscan-- > 0 )
1158                                 {
1159                                         ret = av_read_frame( context, &pkt );
1160                                         if ( ret >= 0 && ( pkt.flags & PKT_FLAG_KEY ) && pkt.stream_index == self->video_index )
1161                                         {
1162                                                 mlt_log_verbose( MLT_PRODUCER_SERVICE(producer), "first_pts %"PRId64" dts %"PRId64" pts_dts_delta %d\n", pkt.pts, pkt.dts, (int)(pkt.pts - pkt.dts) );
1163                                                 self->first_pts = pkt.pts;
1164                                                 toscan = 0;
1165                                         }
1166                                         av_free_packet( &pkt );
1167                                 }
1168                                 // Rewind
1169                                 av_seek_frame( context, -1, 0, AVSEEK_FLAG_BACKWARD );
1170                         }
1171
1172                         // Calculate the timestamp for the requested frame
1173                         int64_t timestamp;
1174                         if ( use_new_seek )
1175                         {
1176                                 timestamp = ( req_position - 0.1 / source_fps ) /
1177                                         ( av_q2d( stream->time_base ) * source_fps );
1178                                 mlt_log_verbose( MLT_PRODUCER_SERVICE(producer), "pos %d pts %"PRId64" ", req_position, timestamp );
1179                                 if ( self->first_pts > 0 )
1180                                         timestamp += self->first_pts;
1181                                 else if ( context->start_time != AV_NOPTS_VALUE )
1182                                         timestamp += context->start_time;
1183                         }
1184                         else
1185                         {
1186                                 timestamp = ( int64_t )( ( double )req_position / source_fps * AV_TIME_BASE + 0.5 );
1187                                 if ( context->start_time != AV_NOPTS_VALUE )
1188                                         timestamp += context->start_time;
1189                         }
1190                         if ( must_decode )
1191                                 timestamp -= AV_TIME_BASE;
1192                         if ( timestamp < 0 )
1193                                 timestamp = 0;
1194                         mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "seeking timestamp %"PRId64" position %d expected %d last_pos %d\n",
1195                                 timestamp, position, self->video_expected, last_position );
1196
1197                         // Seek to the timestamp
1198                         if ( use_new_seek )
1199                         {
1200                                 codec_context->skip_loop_filter = AVDISCARD_NONREF;
1201                                 av_seek_frame( context, self->video_index, timestamp, AVSEEK_FLAG_BACKWARD );
1202                         }
1203                         else if ( req_position > 0 || last_position <= 0 )
1204                         {
1205                                 av_seek_frame( context, -1, timestamp, AVSEEK_FLAG_BACKWARD );
1206                         }
1207                         else
1208                         {
1209                                 // Re-open video stream when rewinding to beginning from somewhere else.
1210                                 // This is rather ugly, and I prefer not to do it this way, but ffmpeg is
1211                                 // not reliably seeking to the first frame across formats.
1212                                 reopen_video( self, producer, properties );
1213                                 context = self->video_format;
1214                                 stream = context->streams[ self->video_index ];
1215                                 codec_context = stream->codec;
1216                         }
1217
1218                         // Remove the cached info relating to the previous position
1219                         self->current_position = POSITION_INVALID;
1220                         self->last_position = POSITION_INVALID;
1221                         av_freep( &self->av_frame );
1222
1223                         if ( use_new_seek )
1224                         {
1225                                 // flush any pictures still in decode buffer
1226                                 avcodec_flush_buffers( codec_context );
1227                         }
1228                 }
1229         }
1230
1231         // Duplicate the last image if necessary
1232         if ( self->av_frame && self->av_frame->linesize[0] && self->got_picture && self->seekable
1233                  && ( paused
1234                           || self->current_position == req_position
1235                           || ( !use_new_seek && self->current_position > req_position ) ) )
1236         {
1237                 // Duplicate it
1238                 if ( ( image_size = allocate_buffer( frame, codec_context, buffer, format, width, height ) ) )
1239                 {
1240                         // Workaround 1088 encodings missing cropping info.
1241                         if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1242                                 *height = 1080;
1243 #ifdef VDPAU
1244                         if ( self->vdpau && self->vdpau->buffer )
1245                         {
1246                                 AVPicture picture;
1247                                 picture.data[0] = self->vdpau->buffer;
1248                                 picture.data[2] = self->vdpau->buffer + codec_context->width * codec_context->height;
1249                                 picture.data[1] = self->vdpau->buffer + codec_context->width * codec_context->height * 5 / 4;
1250                                 picture.linesize[0] = codec_context->width;
1251                                 picture.linesize[1] = codec_context->width / 2;
1252                                 picture.linesize[2] = codec_context->width / 2;
1253                                 convert_image( (AVFrame*) &picture, *buffer,
1254                                         PIX_FMT_YUV420P, format, *width, *height, self->colorspace );
1255                         }
1256                         else
1257 #endif
1258                         convert_image( self->av_frame, *buffer, codec_context->pix_fmt,
1259                                 format, *width, *height, self->colorspace );
1260                 }
1261                 else
1262                         mlt_frame_get_image( frame, buffer, format, width, height, writable );
1263         }
1264         else
1265         {
1266                 int ret = 0;
1267                 int int_position = 0;
1268                 int decode_errors = 0;
1269                 int got_picture = 0;
1270
1271                 av_init_packet( &pkt );
1272
1273                 // Construct an AVFrame for YUV422 conversion
1274                 if ( !self->av_frame )
1275                         self->av_frame = avcodec_alloc_frame( );
1276
1277                 while( ret >= 0 && !got_picture )
1278                 {
1279                         // Read a packet
1280                         ret = av_read_frame( context, &pkt );
1281
1282                         // We only deal with video from the selected video_index
1283                         if ( ret >= 0 && pkt.stream_index == self->video_index && pkt.size > 0 )
1284                         {
1285                                 // Determine time code of the packet
1286                                 if ( use_new_seek )
1287                                 {
1288                                         int64_t pts = pkt.pts;
1289                                         if ( self->first_pts > 0 )
1290                                                 pts -= self->first_pts;
1291                                         else if ( context->start_time != AV_NOPTS_VALUE )
1292                                                 pts -= context->start_time;
1293                                         int_position = ( int )( av_q2d( stream->time_base ) * pts * source_fps + 0.1 );
1294                                         if ( pkt.pts == AV_NOPTS_VALUE )
1295                                         {
1296                                                 self->invalid_pts_counter++;
1297                                                 if ( self->invalid_pts_counter > 20 )
1298                                                 {
1299                                                         mlt_log_panic( MLT_PRODUCER_SERVICE(producer), "\ainvalid PTS; DISABLING NEW_SEEK!\n" );
1300                                                         mlt_properties_set_int( properties, "new_seek", 0 );
1301                                                         int_position = req_position;
1302                                                         use_new_seek = 0;
1303                                                 }
1304                                         }
1305                                         else
1306                                         {
1307                                                 self->invalid_pts_counter = 0;
1308                                         }
1309                                         mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "pkt.pts %"PRId64" req_pos %d cur_pos %d pkt_pos %d\n",
1310                                                 pkt.pts, req_position, self->current_position, int_position );
1311                                 }
1312                                 else
1313                                 {
1314                                         if ( self->seekable && pkt.dts != AV_NOPTS_VALUE )
1315                                         {
1316                                                 int_position = ( int )( av_q2d( stream->time_base ) * pkt.dts * source_fps + 0.5 );
1317                                                 if ( context->start_time != AV_NOPTS_VALUE )
1318                                                         int_position -= ( int )( context->start_time * source_fps / AV_TIME_BASE + 0.5 );
1319                                                 last_position = self->last_position;
1320                                                 if ( int_position == last_position )
1321                                                         int_position = last_position + 1;
1322                                         }
1323                                         else
1324                                         {
1325                                                 int_position = req_position;
1326                                         }
1327                                         mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "pkt.dts %"PRId64" req_pos %d cur_pos %d pkt_pos %d\n",
1328                                                 pkt.dts, req_position, self->current_position, int_position );
1329                                         // Make a dumb assumption on streams that contain wild timestamps
1330                                         if ( abs( req_position - int_position ) > 999 )
1331                                         {
1332                                                 int_position = req_position;
1333                                                 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), " WILD TIMESTAMP!" );
1334                                         }
1335                                 }
1336                                 self->last_position = int_position;
1337
1338                                 // Decode the image
1339                                 if ( must_decode || int_position >= req_position )
1340                                 {
1341 #ifdef VDPAU
1342                                         if ( g_vdpau && self->vdpau )
1343                                         {
1344                                                 if ( g_vdpau->producer != self )
1345                                                 {
1346                                                         vdpau_decoder_close();
1347                                                         vdpau_decoder_init( self );
1348                                                 }
1349                                                 if ( self->vdpau )
1350                                                         self->vdpau->is_decoded = 0;
1351                                         }
1352 #endif
1353                                         codec_context->reordered_opaque = pkt.pts;
1354                                         if ( int_position >= req_position )
1355                                                 codec_context->skip_loop_filter = AVDISCARD_NONE;
1356 #if (LIBAVCODEC_VERSION_INT >= ((52<<16)+(26<<8)+0))
1357                                         ret = avcodec_decode_video2( codec_context, self->av_frame, &got_picture, &pkt );
1358 #else
1359                                         ret = avcodec_decode_video( codec_context, self->av_frame, &got_picture, pkt.data, pkt.size );
1360 #endif
1361                                         // Note: decode may fail at the beginning of MPEGfile (B-frames referencing before first I-frame), so allow a few errors.
1362                                         if ( ret < 0 )
1363                                         {
1364                                                 if ( ++decode_errors <= 10 )
1365                                                         ret = 0;
1366                                         }
1367                                         else
1368                                         {
1369                                                 decode_errors = 0;
1370                                         }
1371                                 }
1372
1373                                 if ( got_picture )
1374                                 {
1375                                         if ( use_new_seek )
1376                                         {
1377                                                 // Determine time code of the packet
1378                                                 int64_t pts = self->av_frame->reordered_opaque;
1379                                                 if ( self->first_pts > 0 )
1380                                                         pts -= self->first_pts;
1381                                                 else if ( context->start_time != AV_NOPTS_VALUE )
1382                                                         pts -= context->start_time;
1383                                                 int_position = ( int )( av_q2d( stream->time_base) * pts * source_fps + 0.1 );
1384                                                 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "got frame %d, key %d\n", int_position, self->av_frame->key_frame );
1385                                         }
1386                                         // Handle ignore
1387                                         if ( int_position < req_position )
1388                                         {
1389                                                 ignore = 0;
1390                                                 got_picture = 0;
1391                                         }
1392                                         else if ( int_position >= req_position )
1393                                         {
1394                                                 ignore = 0;
1395                                                 codec_context->skip_loop_filter = AVDISCARD_NONE;
1396                                         }
1397                                         else if ( ignore -- )
1398                                         {
1399                                                 got_picture = 0;
1400                                         }
1401                                 }
1402                                 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), " got_pic %d key %d\n", got_picture, pkt.flags & PKT_FLAG_KEY );
1403                         }
1404
1405                         // Now handle the picture if we have one
1406                         if ( got_picture )
1407                         {
1408                                 if ( ( image_size = allocate_buffer( frame, codec_context, buffer, format, width, height ) ) )
1409                                 {
1410                                         // Workaround 1088 encodings missing cropping info.
1411                                         if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1412                                                 *height = 1080;
1413 #ifdef VDPAU
1414                                         if ( self->vdpau )
1415                                         {
1416                                                 if ( self->vdpau->is_decoded )
1417                                                 {
1418                                                         struct vdpau_render_state *render = (struct vdpau_render_state*) self->av_frame->data[0];
1419                                                         void *planes[3];
1420                                                         uint32_t pitches[3];
1421                                                         VdpYCbCrFormat dest_format = VDP_YCBCR_FORMAT_YV12;
1422
1423                                                         if ( !self->vdpau->buffer )
1424                                                                 self->vdpau->buffer = mlt_pool_alloc( codec_context->width * codec_context->height * 3 / 2 );
1425                                                         self->av_frame->data[0] = planes[0] = self->vdpau->buffer;
1426                                                         self->av_frame->data[2] = planes[1] = self->vdpau->buffer + codec_context->width * codec_context->height;
1427                                                         self->av_frame->data[1] = planes[2] = self->vdpau->buffer + codec_context->width * codec_context->height * 5 / 4;
1428                                                         self->av_frame->linesize[0] = pitches[0] = codec_context->width;
1429                                                         self->av_frame->linesize[1] = pitches[1] = codec_context->width / 2;
1430                                                         self->av_frame->linesize[2] = pitches[2] = codec_context->width / 2;
1431
1432                                                         VdpStatus status = vdp_surface_get_bits( render->surface, dest_format, planes, pitches );
1433                                                         if ( status == VDP_STATUS_OK )
1434                                                         {
1435                                                                 convert_image( self->av_frame, *buffer, PIX_FMT_YUV420P,
1436                                                                         format, *width, *height, self->colorspace );
1437                                                         }
1438                                                         else
1439                                                         {
1440                                                                 mlt_log_error( MLT_PRODUCER_SERVICE(producer), "VDPAU Error: %s\n", vdp_get_error_string( status ) );
1441                                                                 self->vdpau->is_decoded = 0;
1442                                                         }
1443                                                 }
1444                                                 else
1445                                                 {
1446                                                         mlt_log_error( MLT_PRODUCER_SERVICE(producer), "VDPAU error in VdpDecoderRender\n" );
1447                                                         got_picture = 0;
1448                                                 }
1449                                         }
1450                                         else
1451 #endif
1452                                         convert_image( self->av_frame, *buffer, codec_context->pix_fmt,
1453                                                 format, *width, *height, self->colorspace );
1454                                         self->top_field_first |= self->av_frame->top_field_first;
1455                                         self->current_position = int_position;
1456                                         self->got_picture = 1;
1457                                 }
1458                                 else
1459                                 {
1460                                         got_picture = 0;
1461                                 }
1462                         }
1463                         if ( ret >= 0 )
1464                                 av_free_packet( &pkt );
1465                 }
1466         }
1467
1468         if ( self->got_picture && image_size > 0 && self->image_cache )
1469         {
1470                 // Copy buffer to image cache
1471                 uint8_t *image = mlt_pool_alloc( image_size );
1472                 memcpy( image, *buffer, image_size );
1473                 mlt_cache_put( self->image_cache, (void*) position, image, *format, mlt_pool_release );
1474         }
1475
1476         // Regardless of speed, we expect to get the next frame (cos we ain't too bright)
1477         self->video_expected = position + 1;
1478
1479 exit_get_image:
1480
1481         pthread_mutex_unlock( &self->video_mutex );
1482
1483         // Set the progressive flag
1484         if ( mlt_properties_get( properties, "force_progressive" ) )
1485                 mlt_properties_set_int( frame_properties, "progressive", !!mlt_properties_get_int( properties, "force_progressive" ) );
1486         else if ( self->av_frame )
1487                 mlt_properties_set_int( frame_properties, "progressive", !self->av_frame->interlaced_frame );
1488
1489         // Set the field order property for this frame
1490         if ( mlt_properties_get( properties, "force_tff" ) )
1491                 mlt_properties_set_int( frame_properties, "top_field_first", !!mlt_properties_get_int( properties, "force_tff" ) );
1492         else
1493                 mlt_properties_set_int( frame_properties, "top_field_first", self->top_field_first );
1494
1495         // Set immutable properties of the selected track's (or overridden) source attributes.
1496         mlt_service_lock( MLT_PRODUCER_SERVICE( producer ) );
1497         mlt_properties_set_int( properties, "meta.media.top_field_first", self->top_field_first );
1498         mlt_properties_set_int( properties, "meta.media.progressive", mlt_properties_get_int( frame_properties, "progressive" ) );
1499         mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
1500
1501         return !self->got_picture;
1502 }
1503
1504 /** Process properties as AVOptions and apply to AV context obj
1505 */
1506
1507 static void apply_properties( void *obj, mlt_properties properties, int flags )
1508 {
1509         int i;
1510         int count = mlt_properties_count( properties );
1511         for ( i = 0; i < count; i++ )
1512         {
1513                 const char *opt_name = mlt_properties_get_name( properties, i );
1514                 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
1515                 if ( opt_name && mlt_properties_get( properties, opt_name ) )
1516                 {
1517                         if ( opt )
1518 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
1519                                 av_set_string3( obj, opt_name, mlt_properties_get( properties, opt_name), 0, NULL );
1520 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
1521                                 av_set_string2( obj, opt_name, mlt_properties_get( properties, opt_name), 0 );
1522 #else
1523                                 av_set_string( obj, opt_name, mlt_properties_get( properties, opt_name) );
1524 #endif
1525                 }
1526         }
1527 }
1528
1529 /** Initialize the video codec context.
1530  */
1531
1532 static int video_codec_init( producer_avformat self, int index, mlt_properties properties )
1533 {
1534         // Initialise the codec if necessary
1535         if ( !self->video_codec )
1536         {
1537                 // Get the video stream
1538                 AVStream *stream = self->video_format->streams[ index ];
1539
1540                 // Get codec context
1541                 AVCodecContext *codec_context = stream->codec;
1542
1543                 // Find the codec
1544                 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
1545 #ifdef VDPAU
1546                 if ( codec_context->codec_id == CODEC_ID_H264 )
1547                 {
1548                         if ( ( codec = avcodec_find_decoder_by_name( "h264_vdpau" ) ) )
1549                         {
1550                                 if ( vdpau_init( self ) )
1551                                 {
1552                                         self->video_codec = codec_context;
1553                                         if ( !vdpau_decoder_init( self ) )
1554                                                 vdpau_decoder_close();
1555                                 }
1556                         }
1557                         if ( !self->vdpau )
1558                                 codec = avcodec_find_decoder( codec_context->codec_id );
1559                 }
1560 #endif
1561
1562                 // Initialise multi-threading
1563                 int thread_count = mlt_properties_get_int( properties, "threads" );
1564                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
1565                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
1566                 if ( thread_count > 1 )
1567                         codec_context->thread_count = thread_count;
1568
1569                 // If we don't have a codec and we can't initialise it, we can't do much more...
1570                 avformat_lock( );
1571                 if ( codec && avcodec_open( codec_context, codec ) >= 0 )
1572                 {
1573                         // Now store the codec with its destructor
1574                         self->video_codec = codec_context;
1575                 }
1576                 else
1577                 {
1578                         // Remember that we can't use this later
1579                         self->video_index = -1;
1580                         avformat_unlock( );
1581                         return 0;
1582                 }
1583                 avformat_unlock( );
1584
1585                 // Process properties as AVOptions
1586                 apply_properties( codec_context, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
1587
1588                 // Reset some image properties
1589                 mlt_properties_set_int( properties, "width", self->video_codec->width );
1590                 mlt_properties_set_int( properties, "height", self->video_codec->height );
1591                 // For DV, we'll just use the saved aspect ratio
1592                 if ( codec_context->codec_id != CODEC_ID_DVVIDEO )
1593                         get_aspect_ratio( properties, stream, self->video_codec, NULL );
1594
1595                 // Determine the fps first from the codec
1596                 double source_fps = (double) self->video_codec->time_base.den /
1597                                                                    ( self->video_codec->time_base.num == 0 ? 1 : self->video_codec->time_base.num );
1598
1599                 if ( mlt_properties_get( properties, "force_fps" ) )
1600                 {
1601                         source_fps = mlt_properties_get_double( properties, "force_fps" );
1602                         stream->time_base = av_d2q( source_fps, 1024 );
1603                         mlt_properties_set_int( properties, "meta.media.frame_rate_num", stream->time_base.num );
1604                         mlt_properties_set_int( properties, "meta.media.frame_rate_den", stream->time_base.den );
1605                 }
1606                 else
1607                 {
1608                         // If the muxer reports a frame rate different than the codec
1609 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(42<<8)+0)
1610                         double muxer_fps = av_q2d( stream->avg_frame_rate );
1611                         if ( isnan( muxer_fps ) || muxer_fps == 0 )
1612                                 muxer_fps = av_q2d( stream->r_frame_rate );
1613 #else
1614                         double muxer_fps = av_q2d( stream->r_frame_rate );
1615 #endif
1616                         // Choose the lesser - the wrong tends to be off by some multiple of 10
1617                         source_fps = FFMIN( source_fps, muxer_fps );
1618                         if ( source_fps >= 1.0 && ( source_fps < muxer_fps || isnan( muxer_fps ) ) )
1619                         {
1620                                 mlt_properties_set_int( properties, "meta.media.frame_rate_num", self->video_codec->time_base.den );
1621                                 mlt_properties_set_int( properties, "meta.media.frame_rate_den", self->video_codec->time_base.num == 0 ? 1 : self->video_codec->time_base.num );
1622                         }
1623                         else if ( muxer_fps > 0 )
1624                         {
1625                                 AVRational frame_rate = stream->r_frame_rate;
1626                                 // With my samples when r_frame_rate != 1000 but avg_frame_rate is valid,
1627                                 // avg_frame_rate gives some approximate value that does not well match the media.
1628                                 // Also, on my sample where r_frame_rate = 1000, using avg_frame_rate directly
1629                                 // results in some very choppy output, but some value slightly different works
1630                                 // great.
1631 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(42<<8)+0)
1632                                 if ( av_q2d( stream->r_frame_rate ) >= 1000 && av_q2d( stream->avg_frame_rate ) > 0 )
1633                                         frame_rate = av_d2q( av_q2d( stream->avg_frame_rate ), 1024 );
1634 #endif
1635                                 mlt_properties_set_int( properties, "meta.media.frame_rate_num", frame_rate.num );
1636                                 mlt_properties_set_int( properties, "meta.media.frame_rate_den", frame_rate.den );
1637                         }
1638                         else
1639                         {
1640                                 source_fps = mlt_producer_get_fps( self->parent );
1641                                 AVRational frame_rate = av_d2q( source_fps, 255 );
1642                                 mlt_properties_set_int( properties, "meta.media.frame_rate_num", frame_rate.num );
1643                                 mlt_properties_set_int( properties, "meta.media.frame_rate_den", frame_rate.den );
1644                         }
1645                 }
1646
1647                 // source_fps is deprecated in favor of meta.media.frame_rate_num and .frame_rate_den
1648                 if ( source_fps > 0 )
1649                         mlt_properties_set_double( properties, "source_fps", source_fps );
1650                 else
1651                         mlt_properties_set_double( properties, "source_fps", mlt_producer_get_fps( self->parent ) );
1652
1653                 // Set the YUV colorspace from override or detect
1654                 self->colorspace = mlt_properties_get_int( properties, "force_colorspace" );
1655 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
1656                 if ( ! self->colorspace )
1657                 {
1658                         switch ( self->video_codec->colorspace )
1659                         {
1660                         case AVCOL_SPC_SMPTE240M:
1661                                 self->colorspace = 240;
1662                                 break;
1663                         case AVCOL_SPC_BT470BG:
1664                         case AVCOL_SPC_SMPTE170M:
1665                                 self->colorspace = 601;
1666                                 break;
1667                         case AVCOL_SPC_BT709:
1668                                 self->colorspace = 709;
1669                                 break;
1670                         default:
1671                                 // This is a heuristic Charles Poynton suggests in "Digital Video and HDTV"
1672                                 self->colorspace = self->video_codec->width * self->video_codec->height > 750000 ? 709 : 601;
1673                                 break;
1674                         }
1675                 }
1676 #endif
1677                 // Let apps get chosen colorspace
1678                 mlt_properties_set_int( properties, "meta.media.colorspace", self->colorspace );
1679         }
1680         return self->video_codec && self->video_index > -1;
1681 }
1682
1683 /** Set up video handling.
1684 */
1685
1686 static void producer_set_up_video( producer_avformat self, mlt_frame frame )
1687 {
1688         // Get the producer
1689         mlt_producer producer = self->parent;
1690
1691         // Get the properties
1692         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
1693
1694         // Fetch the video format context
1695         AVFormatContext *context = self->video_format;
1696
1697         // Get the video_index
1698         int index = mlt_properties_get_int( properties, "video_index" );
1699
1700         // Reopen the file if necessary
1701         if ( !context && index > -1 )
1702         {
1703                 mlt_events_block( properties, producer );
1704                 producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
1705                         mlt_properties_get( properties, "resource" ) );
1706                 context = self->video_format;
1707                 if ( self->dummy_context )
1708                 {
1709                         av_close_input_file( self->dummy_context );
1710                         self->dummy_context = NULL;
1711                 }
1712                 mlt_events_unblock( properties, producer );
1713                 if ( self->audio_format && !self->audio_streams )
1714                         get_audio_streams_info( self );
1715
1716                 // Process properties as AVOptions
1717                 if ( context )
1718                         apply_properties( context, properties, AV_OPT_FLAG_DECODING_PARAM );
1719         }
1720
1721         // Exception handling for video_index
1722         if ( context && index >= (int) context->nb_streams )
1723         {
1724                 // Get the last video stream
1725                 for ( index = context->nb_streams - 1;
1726                           index >= 0 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_VIDEO;
1727                           index-- );
1728                 mlt_properties_set_int( properties, "video_index", index );
1729         }
1730         if ( context && index > -1 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_VIDEO )
1731         {
1732                 // Invalidate the video stream
1733                 index = -1;
1734                 mlt_properties_set_int( properties, "video_index", index );
1735         }
1736
1737         // Update the video properties if the index changed
1738         if ( index != self->video_index )
1739         {
1740                 // Reset the video properties if the index changed
1741                 self->video_index = index;
1742                 if ( self->video_codec )
1743                 {
1744                         avformat_lock();
1745                         avcodec_close( self->video_codec );
1746                         avformat_unlock();
1747                 }
1748                 self->video_codec = NULL;
1749         }
1750
1751         // Get the frame properties
1752         mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
1753
1754         // Get the codec
1755         if ( context && index > -1 && video_codec_init( self, index, properties ) )
1756         {
1757                 // Set the frame properties
1758                 double force_aspect_ratio = mlt_properties_get_double( properties, "force_aspect_ratio" );
1759                 double aspect_ratio = ( force_aspect_ratio > 0.0 ) ?
1760                         force_aspect_ratio : mlt_properties_get_double( properties, "aspect_ratio" );
1761
1762                 // Set the width and height
1763                 mlt_properties_set_int( frame_properties, "width", self->video_codec->width );
1764                 mlt_properties_set_int( frame_properties, "height", self->video_codec->height );
1765                 // real_width and real_height are deprecated in favor of meta.media.width and .height
1766                 mlt_properties_set_int( properties, "meta.media.width", self->video_codec->width );
1767                 mlt_properties_set_int( properties, "meta.media.height", self->video_codec->height );
1768                 mlt_properties_set_int( frame_properties, "real_width", self->video_codec->width );
1769                 mlt_properties_set_int( frame_properties, "real_height", self->video_codec->height );
1770                 mlt_properties_set_double( frame_properties, "aspect_ratio", aspect_ratio );
1771                 mlt_properties_set_int( frame_properties, "colorspace", self->colorspace );
1772
1773                 // Workaround 1088 encodings missing cropping info.
1774                 if ( self->video_codec->height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1775                 {
1776                         mlt_properties_set_int( properties, "meta.media.height", 1080 );
1777                         mlt_properties_set_int( frame_properties, "real_height", 1080 );
1778                 }
1779
1780                 // Add our image operation
1781                 mlt_frame_push_service( frame, self );
1782                 mlt_frame_push_get_image( frame, producer_get_image );
1783         }
1784         else
1785         {
1786                 // If something failed, use test card image
1787                 mlt_properties_set_int( frame_properties, "test_image", 1 );
1788         }
1789 }
1790
1791 static int seek_audio( producer_avformat self, mlt_position position, double timecode, int *ignore )
1792 {
1793         int paused = 0;
1794
1795         // Seek if necessary
1796         if ( position != self->audio_expected )
1797         {
1798                 if ( position + 1 == self->audio_expected )
1799                 {
1800                         // We're paused - silence required
1801                         paused = 1;
1802                 }
1803                 else if ( !self->seekable && position > self->audio_expected && ( position - self->audio_expected ) < 250 )
1804                 {
1805                         // Fast forward - seeking is inefficient for small distances - just ignore following frames
1806                         *ignore = position - self->audio_expected;
1807                 }
1808                 else if ( position < self->audio_expected || position - self->audio_expected >= 12 )
1809                 {
1810                         AVFormatContext *context = self->audio_format;
1811                         int64_t timestamp = ( int64_t )( timecode * AV_TIME_BASE + 0.5 );
1812                         if ( context->start_time != AV_NOPTS_VALUE )
1813                                 timestamp += context->start_time;
1814                         if ( timestamp < 0 )
1815                                 timestamp = 0;
1816
1817                         // Set to the real timecode
1818                         if ( av_seek_frame( context, -1, timestamp, AVSEEK_FLAG_BACKWARD ) != 0 )
1819                                 paused = 1;
1820
1821                         // Clear the usage in the audio buffer
1822                         int i = MAX_AUDIO_STREAMS + 1;
1823                         while ( --i )
1824                                 self->audio_used[i - 1] = 0;
1825                 }
1826         }
1827         return paused;
1828 }
1829
1830 static int decode_audio( producer_avformat self, int *ignore, AVPacket pkt, int channels, int samples, double timecode, double fps )
1831 {
1832         // Fetch the audio_format
1833         AVFormatContext *context = self->audio_format;
1834
1835         // Get the current stream index
1836         int index = pkt.stream_index;
1837
1838         // Get codec context
1839         AVCodecContext *codec_context = self->audio_codec[ index ];
1840
1841         // Obtain the resample context if it exists (not always needed)
1842         ReSampleContext *resample = self->audio_resample[ index ];
1843
1844         // Obtain the audio buffers
1845         int16_t *audio_buffer = self->audio_buffer[ index ];
1846         int16_t *decode_buffer = self->decode_buffer[ index ];
1847
1848         int audio_used = self->audio_used[ index ];
1849         uint8_t *ptr = pkt.data;
1850         int len = pkt.size;
1851         int ret = 0;
1852
1853         while ( ptr && ret >= 0 && len > 0 )
1854         {
1855                 int data_size = sizeof( int16_t ) * AVCODEC_MAX_AUDIO_FRAME_SIZE;
1856
1857                 // Decode the audio
1858 #if (LIBAVCODEC_VERSION_INT >= ((52<<16)+(26<<8)+0))
1859                 ret = avcodec_decode_audio3( codec_context, decode_buffer, &data_size, &pkt );
1860 #elif (LIBAVCODEC_VERSION_INT >= ((51<<16)+(29<<8)+0))
1861                 ret = avcodec_decode_audio2( codec_context, decode_buffer, &data_size, ptr, len );
1862 #else
1863                 ret = avcodec_decode_audio( codec_context, decode_buffer, &data_size, ptr, len );
1864 #endif
1865                 if ( ret < 0 )
1866                 {
1867                         mlt_log_warning( MLT_PRODUCER_SERVICE(self->parent), "audio decoding error %d\n", ret );
1868                         break;
1869                 }
1870
1871                 pkt.size = len -= ret;
1872                 pkt.data = ptr += ret;
1873
1874                 // If decoded successfully
1875                 if ( data_size > 0 )
1876                 {
1877                         // Figure out how many samples will be needed after resampling
1878                         int convert_samples = data_size / codec_context->channels / ( av_get_bits_per_sample_format( codec_context->sample_fmt ) / 8 );
1879                         int samples_needed = self->resample_factor * convert_samples + 1;
1880
1881                         // Resize audio buffer to prevent overflow
1882                         if ( audio_used * channels + samples_needed > self->audio_buffer_size[ index ] )
1883                         {
1884                                 self->audio_buffer_size[ index ] *= 2;
1885                                 audio_buffer = self->audio_buffer[ index ] = mlt_pool_realloc( audio_buffer, self->audio_buffer_size[ index ] * sizeof(int16_t) );
1886                         }
1887                         if ( resample )
1888                         {
1889                                 // Copy to audio buffer while resampling
1890                                 int16_t *source = decode_buffer;
1891                                 int16_t *dest = &audio_buffer[ audio_used * channels ];
1892                                 audio_used += audio_resample( resample, dest, source, convert_samples );
1893                         }
1894                         else
1895                         {
1896                                 // Straight copy to audio buffer
1897                                 memcpy( &audio_buffer[ audio_used * codec_context->channels ], decode_buffer, data_size );
1898                                 audio_used += convert_samples;
1899                         }
1900
1901                         // Handle ignore
1902                         while ( *ignore && audio_used > samples )
1903                         {
1904                                 *ignore -= 1;
1905                                 audio_used -= samples;
1906                                 memmove( audio_buffer, &audio_buffer[ samples * (resample? channels : codec_context->channels) ],
1907                                          audio_used * sizeof( int16_t ) );
1908                         }
1909                 }
1910         }
1911
1912         // If we're behind, ignore this packet
1913         if ( pkt.pts >= 0 )
1914         {
1915                 double current_pts = av_q2d( context->streams[ index ]->time_base ) * pkt.pts;
1916                 int req_position = ( int )( timecode * fps + 0.5 );
1917                 int int_position = ( int )( current_pts * fps + 0.5 );
1918                 if ( context->start_time != AV_NOPTS_VALUE )
1919                         int_position -= ( int )( fps * context->start_time / AV_TIME_BASE + 0.5 );
1920
1921                 if ( self->seekable && *ignore == 0 )
1922                 {
1923                         if ( int_position < req_position )
1924                                 // We are behind, so skip some
1925                                 *ignore = 1;
1926                         else if ( int_position > req_position + 2 )
1927                                 // We are ahead, so seek backwards some more
1928                                 seek_audio( self, req_position, timecode - 1.0, ignore );
1929                 }
1930         }
1931
1932         self->audio_used[ index ] = audio_used;
1933
1934         return ret;
1935 }
1936
1937 /** Get the audio from a frame.
1938 */
1939 static int producer_get_audio( mlt_frame frame, void **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
1940 {
1941         // Get the producer
1942         producer_avformat self = mlt_frame_pop_audio( frame );
1943
1944         pthread_mutex_lock( &self->audio_mutex );
1945
1946         // Obtain the frame number of this frame
1947         mlt_position position = mlt_properties_get_position( MLT_FRAME_PROPERTIES( frame ), "avformat_position" );
1948
1949         // Calculate the real time code
1950         double real_timecode = producer_time_of_frame( self->parent, position );
1951
1952         // Get the producer fps
1953         double fps = mlt_producer_get_fps( self->parent );
1954
1955         // Number of frames to ignore (for ffwd)
1956         int ignore = 0;
1957
1958         // Flag for paused (silence)
1959         int paused = seek_audio( self, position, real_timecode, &ignore );
1960
1961         // Fetch the audio_format
1962         AVFormatContext *context = self->audio_format;
1963
1964         // Determine the tracks to use
1965         int index = self->audio_index;
1966         int index_max = self->audio_index + 1;
1967         if ( self->audio_index == INT_MAX )
1968         {
1969                 index = 0;
1970                 index_max = context->nb_streams;
1971                 *channels = self->total_channels;
1972                 *samples = *samples * FFMAX( self->max_frequency, *frequency ) / *frequency;
1973                 *frequency = FFMAX( self->max_frequency, *frequency );
1974         }
1975
1976         // Initialize the resamplers and buffers
1977         for ( ; index < index_max; index++ )
1978         {
1979                 // Get codec context
1980                 AVCodecContext *codec_context = self->audio_codec[ index ];
1981
1982                 if ( codec_context && !self->audio_buffer[ index ] )
1983                 {
1984                         // Check for resample and create if necessary
1985                         if ( codec_context->channels <= 2 )
1986                         {
1987                                 // Determine by how much resampling will increase number of samples
1988                                 double resample_factor = self->audio_index == INT_MAX ? 1 : (double) *channels / codec_context->channels;
1989                                 resample_factor *= (double) *frequency / codec_context->sample_rate;
1990                                 if ( resample_factor > self->resample_factor )
1991                                         self->resample_factor = resample_factor;
1992
1993                                 // Create the resampler
1994 #if (LIBAVCODEC_VERSION_INT >= ((52<<16)+(15<<8)+0))
1995                                 self->audio_resample[ index ] = av_audio_resample_init(
1996                                         self->audio_index == INT_MAX ? codec_context->channels : *channels,
1997                                         codec_context->channels, *frequency, codec_context->sample_rate,
1998                                         SAMPLE_FMT_S16, codec_context->sample_fmt, 16, 10, 0, 0.8 );
1999 #else
2000                                 self->audio_resample[ index ] = audio_resample_init(
2001                                         self->audio_index == INT_MAX ? codec_context->channels : *channels,
2002                                         codec_context->channels, *frequency, codec_context->sample_rate );
2003 #endif
2004                         }
2005                         else
2006                         {
2007                                 codec_context->request_channels = self->audio_index == INT_MAX ? codec_context->channels : *channels;
2008                         }
2009
2010                         // Check for audio buffer and create if necessary
2011                         self->audio_buffer_size[ index ] = AVCODEC_MAX_AUDIO_FRAME_SIZE;
2012                         self->audio_buffer[ index ] = mlt_pool_alloc( self->audio_buffer_size[ index ] * sizeof( int16_t ) );
2013
2014                         // Check for decoder buffer and create if necessary
2015                         self->decode_buffer[ index ] = av_malloc( AVCODEC_MAX_AUDIO_FRAME_SIZE * sizeof( int16_t ) );
2016                 }
2017         }
2018
2019         // Get the audio if required
2020         if ( !paused )
2021         {
2022                 int ret = 0;
2023                 int got_audio = 0;
2024                 AVPacket pkt;
2025
2026                 av_init_packet( &pkt );
2027
2028                 // If not resampling, give consumer more than requested.
2029                 // It requested number samples based on requested frame rate.
2030                 // Do not clean this up with a samples *= ...!
2031                 if ( self->audio_index != INT_MAX && ! self->audio_resample[ self->audio_index ] )
2032                         *samples = *samples * self->audio_codec[ self->audio_index ]->sample_rate / *frequency;
2033
2034                 while ( ret >= 0 && !got_audio )
2035                 {
2036                         // Check if the buffer already contains the samples required
2037                         if ( self->audio_index != INT_MAX && self->audio_used[ self->audio_index ] >= *samples && ignore == 0 )
2038                         {
2039                                 got_audio = 1;
2040                                 break;
2041                         }
2042
2043                         // Read a packet
2044                         ret = av_read_frame( context, &pkt );
2045
2046                         // We only deal with audio from the selected audio index
2047                         if ( ret >= 0 && pkt.data && pkt.size > 0 && ( pkt.stream_index == self->audio_index ||
2048                                  ( self->audio_index == INT_MAX && context->streams[ pkt.stream_index ]->codec->codec_type == CODEC_TYPE_AUDIO ) ) )
2049                         {
2050                                 int channels2 = self->audio_index == INT_MAX ? self->audio_codec[pkt.stream_index]->channels : *channels;
2051                                 ret = decode_audio( self, &ignore, pkt, channels2, *samples, real_timecode, fps );
2052                         }
2053                         av_free_packet( &pkt );
2054
2055                         if ( self->audio_index == INT_MAX && ret >= 0 )
2056                         {
2057                                 // Determine if there is enough audio for all streams
2058                                 got_audio = 1;
2059                                 for ( index = 0; index < context->nb_streams; index++ )
2060                                 {
2061                                         if ( self->audio_codec[ index ] && self->audio_used[ index ] < *samples )
2062                                                 got_audio = 0;
2063                                 }
2064                         }
2065                 }
2066
2067                 // Allocate and set the frame's audio buffer
2068                 int size = *samples * *channels * sizeof(int16_t);
2069                 *buffer = mlt_pool_alloc( size );
2070                 *format = mlt_audio_s16;
2071                 mlt_frame_set_audio( frame, *buffer, *format, size, mlt_pool_release );
2072
2073                 // Interleave tracks if audio_index=all
2074                 if ( self->audio_index == INT_MAX )
2075                 {
2076                         int16_t *dest = *buffer;
2077                         int i;
2078                         for ( i = 0; i < *samples; i++ )
2079                         {
2080                                 for ( index = 0; index < index_max; index++ )
2081                                 if ( self->audio_codec[ index ] )
2082                                 {
2083                                         int current_channels = self->audio_codec[ index ]->channels;
2084                                         int16_t *src = self->audio_buffer[ index ] + i * current_channels;
2085                                         memcpy( dest, src, current_channels * sizeof(int16_t) );
2086                                         dest += current_channels;
2087                                 }
2088                         }
2089                         for ( index = 0; index < index_max; index++ )
2090                         if ( self->audio_codec[ index ] && self->audio_used[ index ] >= *samples )
2091                         {
2092                                 int current_channels = self->audio_codec[ index ]->channels;
2093                                 int16_t *src = self->audio_buffer[ index ] + *samples * current_channels;
2094                                 self->audio_used[index] -= *samples;
2095                                 memmove( self->audio_buffer[ index ], src, self->audio_used[ index ] * current_channels * sizeof(int16_t) );
2096                         }
2097                 }
2098                 // Copy a single track to the output buffer
2099                 else
2100                 {
2101                         index = self->audio_index;
2102
2103                         // Now handle the audio if we have enough
2104                         if ( self->audio_used[ index ] > 0 )
2105                         {
2106                                 int16_t *src = self->audio_buffer[ index ];
2107                                 *samples = self->audio_used[ index ] < *samples ? self->audio_used[ index ] : *samples;
2108                                 memcpy( *buffer, src, *samples * *channels * sizeof(int16_t) );
2109                                 self->audio_used[ index ] -= *samples;
2110                                 memmove( src, &src[ *samples * *channels ], self->audio_used[ index ] * *channels * sizeof(int16_t) );
2111                         }
2112                         else
2113                         {
2114                                 // Otherwise fill with silence
2115                                 memset( *buffer, 0, *samples * *channels * sizeof(int16_t) );
2116                         }
2117                         if ( !self->audio_resample[ index ] )
2118                         {
2119                                 // TODO: uncomment and remove following line when full multi-channel support is ready
2120                                 // *channels = codec_context->channels;
2121                                 *frequency = self->audio_codec[ index ]->sample_rate;
2122                         }
2123                 }
2124         }
2125         else
2126         {
2127                 // Get silence and don't touch the context
2128                 mlt_frame_get_audio( frame, buffer, format, frequency, channels, samples );
2129         }
2130
2131         // Regardless of speed (other than paused), we expect to get the next frame
2132         if ( !paused )
2133                 self->audio_expected = position + 1;
2134
2135         pthread_mutex_unlock( &self->audio_mutex );
2136
2137         return 0;
2138 }
2139
2140 /** Initialize the audio codec context.
2141 */
2142
2143 static int audio_codec_init( producer_avformat self, int index, mlt_properties properties )
2144 {
2145         // Initialise the codec if necessary
2146         if ( !self->audio_codec[ index ] )
2147         {
2148                 // Get codec context
2149                 AVCodecContext *codec_context = self->audio_format->streams[index]->codec;
2150
2151                 // Find the codec
2152                 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
2153
2154                 // If we don't have a codec and we can't initialise it, we can't do much more...
2155                 avformat_lock( );
2156                 if ( codec && avcodec_open( codec_context, codec ) >= 0 )
2157                 {
2158                         // Now store the codec with its destructor
2159                         if ( self->audio_codec[ index ] )
2160                                 avcodec_close( self->audio_codec[ index ] );
2161                         self->audio_codec[ index ] = codec_context;
2162                 }
2163                 else
2164                 {
2165                         // Remember that we can't use self later
2166                         self->audio_index = -1;
2167                 }
2168                 avformat_unlock( );
2169
2170                 // Process properties as AVOptions
2171                 apply_properties( codec_context, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
2172         }
2173         return self->audio_codec[ index ] && self->audio_index > -1;
2174 }
2175
2176 /** Set up audio handling.
2177 */
2178
2179 static void producer_set_up_audio( producer_avformat self, mlt_frame frame )
2180 {
2181         // Get the producer
2182         mlt_producer producer = self->parent;
2183
2184         // Get the properties
2185         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
2186
2187         // Fetch the audio format context
2188         AVFormatContext *context = self->audio_format;
2189
2190         mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
2191
2192         // Get the audio_index
2193         int index = mlt_properties_get_int( properties, "audio_index" );
2194
2195         // Handle all audio tracks
2196         if ( self->audio_index > -1 &&
2197              mlt_properties_get( properties, "audio_index" ) &&
2198              !strcmp( mlt_properties_get( properties, "audio_index" ), "all" ) )
2199                 index = INT_MAX;
2200
2201         // Reopen the file if necessary
2202         if ( !context && self->audio_index > -1 && index > -1 )
2203         {
2204                 mlt_events_block( properties, producer );
2205                 producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
2206                         mlt_properties_get( properties, "resource" ) );
2207                 context = self->audio_format;
2208                 if ( self->dummy_context )
2209                 {
2210                         av_close_input_file( self->dummy_context );
2211                         self->dummy_context = NULL;
2212                 }
2213                 mlt_events_unblock( properties, producer );
2214                 if ( self->audio_format )
2215                         get_audio_streams_info( self );
2216         }
2217
2218         // Exception handling for audio_index
2219         if ( context && index >= (int) context->nb_streams && index < INT_MAX )
2220         {
2221                 for ( index = context->nb_streams - 1;
2222                           index >= 0 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_AUDIO;
2223                           index-- );
2224                 mlt_properties_set_int( properties, "audio_index", index );
2225         }
2226         if ( context && index > -1 && index < INT_MAX &&
2227                  context->streams[ index ]->codec->codec_type != CODEC_TYPE_AUDIO )
2228         {
2229                 index = self->audio_index;
2230                 mlt_properties_set_int( properties, "audio_index", index );
2231         }
2232
2233         // Update the audio properties if the index changed
2234         if ( context && index > -1 && index != self->audio_index )
2235         {
2236                 if ( self->audio_codec[ self->audio_index ] )
2237                 {
2238                         avformat_lock();
2239                         avcodec_close( self->audio_codec[ self->audio_index ] );
2240                         avformat_unlock();
2241                 }
2242                 self->audio_codec[ self->audio_index ] = NULL;
2243         }
2244         if ( self->audio_index != -1 )
2245                 self->audio_index = index;
2246         else
2247                 index = -1;
2248
2249         // Get the codec(s)
2250         if ( context && index == INT_MAX )
2251         {
2252                 mlt_properties_set_int( frame_properties, "frequency", self->max_frequency );
2253                 mlt_properties_set_int( frame_properties, "channels", self->total_channels );
2254                 for ( index = 0; index < context->nb_streams; index++ )
2255                 {
2256                         if ( context->streams[ index ]->codec->codec_type == CODEC_TYPE_AUDIO )
2257                                 audio_codec_init( self, index, properties );
2258                 }
2259         }
2260         else if ( context && index > -1 && audio_codec_init( self, index, properties ) )
2261         {
2262                 // Set the frame properties
2263                 if ( index < INT_MAX )
2264                 {
2265                         mlt_properties_set_int( frame_properties, "frequency", self->audio_codec[ index ]->sample_rate );
2266                         mlt_properties_set_int( frame_properties, "channels", self->audio_codec[ index ]->channels );
2267                 }
2268         }
2269         if ( context && index > -1 )
2270         {
2271                 // Add our audio operation
2272                 mlt_frame_push_audio( frame, self );
2273                 mlt_frame_push_audio( frame, producer_get_audio );
2274         }
2275 }
2276
2277 /** Our get frame implementation.
2278 */
2279
2280 static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
2281 {
2282         // Access the private data
2283         mlt_service service = MLT_PRODUCER_SERVICE( producer );
2284         mlt_cache_item cache_item = mlt_service_cache_get( service, "producer_avformat" );
2285         producer_avformat self = mlt_cache_item_data( cache_item, NULL );
2286
2287         // If cache miss
2288         if ( !self )
2289         {
2290                 self = calloc( 1, sizeof( struct producer_avformat_s ) );
2291                 producer->child = self;
2292                 self->parent = producer;
2293                 mlt_service_cache_put( service, "producer_avformat", self, 0, (mlt_destructor) producer_avformat_close );
2294                 cache_item = mlt_service_cache_get( service, "producer_avformat" );
2295         }
2296
2297         // Create an empty frame
2298         *frame = mlt_frame_init( service);
2299
2300         if ( *frame )
2301         {
2302                 mlt_properties_set_data( MLT_FRAME_PROPERTIES(*frame), "avformat_cache", cache_item, 0, (mlt_destructor) mlt_cache_item_close, NULL );
2303         }
2304         else
2305         {
2306                 mlt_cache_item_close( cache_item );
2307                 return 1;
2308         }
2309
2310         // Update timecode on the frame we're creating
2311         mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
2312
2313         // Set the position of this producer
2314         mlt_properties_set_position( MLT_FRAME_PROPERTIES( *frame ), "avformat_position", mlt_producer_frame( producer ) );
2315
2316         // Set up the video
2317         producer_set_up_video( self, *frame );
2318
2319         // Set up the audio
2320         producer_set_up_audio( self, *frame );
2321
2322         // Calculate the next timecode
2323         mlt_producer_prepare_next( producer );
2324
2325         return 0;
2326 }
2327
2328 static void producer_avformat_close( producer_avformat self )
2329 {
2330         mlt_log_debug( NULL, "producer_avformat_close\n" );
2331         // Close the file
2332         av_free( self->av_frame );
2333         avformat_lock();
2334         int i;
2335         for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
2336         {
2337                 if ( self->audio_resample[i] )
2338                         audio_resample_close( self->audio_resample[i] );
2339                 mlt_pool_release( self->audio_buffer[i] );
2340                 av_free( self->decode_buffer[i] );
2341                 if ( self->audio_codec[i] )
2342                         avcodec_close( self->audio_codec[i] );
2343         }
2344         if ( self->video_codec )
2345                 avcodec_close( self->video_codec );
2346         if ( self->dummy_context )
2347                 av_close_input_file( self->dummy_context );
2348         if ( self->audio_format )
2349                 av_close_input_file( self->audio_format );
2350         if ( self->video_format )
2351                 av_close_input_file( self->video_format );
2352         avformat_unlock();
2353 #ifdef VDPAU
2354         vdpau_producer_close( self );
2355 #endif
2356         if ( self->image_cache )
2357                 mlt_cache_close( self->image_cache );
2358         pthread_mutex_destroy( &self->audio_mutex );
2359         pthread_mutex_destroy( &self->video_mutex );
2360         free( self );
2361 }
2362
2363 static void producer_close( mlt_producer parent )
2364 {
2365         // Close the parent
2366         parent->close = NULL;
2367         mlt_producer_close( parent );
2368
2369         // Free the memory
2370         free( parent );
2371 }