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
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.
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.
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
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>
32 // ffmpeg Header files
33 #include <libavformat/avformat.h>
35 # include <libswscale/swscale.h>
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);
43 # include <libavcodec/vdpau.h>
45 #if (LIBAVUTIL_VERSION_INT > ((50<<16)+(7<<8)+0))
46 # include <libavutil/pixdesc.h>
49 // System header files
55 #if LIBAVUTIL_VERSION_INT < (50<<16)
56 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
57 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
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
66 #include <libavcodec/opt.h>
69 #define POSITION_INITIAL (-2)
70 #define POSITION_INVALID (-1)
72 #define MAX_AUDIO_STREAMS (10)
73 #define MAX_VDPAU_SURFACES (10)
75 void avformat_lock( );
76 void avformat_unlock( );
78 struct producer_avformat_s
81 AVFormatContext *dummy_context;
82 AVFormatContext *audio_format;
83 AVFormatContext *video_format;
84 AVCodecContext *audio_codec[ MAX_AUDIO_STREAMS ];
85 AVCodecContext *video_codec;
87 ReSampleContext *audio_resample[ MAX_AUDIO_STREAMS ];
88 mlt_position audio_expected;
89 mlt_position video_expected;
99 uint8_t *audio_buffer[ MAX_AUDIO_STREAMS ];
100 size_t audio_buffer_size[ MAX_AUDIO_STREAMS ];
101 uint8_t *decode_buffer[ MAX_AUDIO_STREAMS ];
102 int audio_used[ MAX_AUDIO_STREAMS ];
104 int audio_max_stream;
108 unsigned int invalid_pts_counter;
109 double resample_factor;
110 mlt_cache image_cache;
112 pthread_mutex_t video_mutex;
113 pthread_mutex_t audio_mutex;
116 pthread_mutex_t packets_mutex;
121 struct vdpau_render_state render_states[MAX_VDPAU_SURFACES];
132 typedef struct producer_avformat_s *producer_avformat;
134 // Forward references.
135 static int list_components( char* file );
136 static int producer_open( producer_avformat self, mlt_profile profile, const char *URL );
137 static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index );
138 static void producer_avformat_close( producer_avformat );
139 static void producer_close( mlt_producer parent );
140 static void producer_set_up_video( producer_avformat self, mlt_frame frame );
141 static void producer_set_up_audio( producer_avformat self, mlt_frame frame );
142 static void apply_properties( void *obj, mlt_properties properties, int flags );
143 static int video_codec_init( producer_avformat self, int index, mlt_properties properties );
144 static void get_audio_streams_info( producer_avformat self );
150 /** Constructor for libavformat.
153 mlt_producer producer_avformat_init( mlt_profile profile, const char *service, char *file )
155 if ( list_components( file ) )
158 mlt_producer producer = NULL;
160 // Check that we have a non-NULL argument
163 // Construct the producer
164 producer_avformat self = calloc( 1, sizeof( struct producer_avformat_s ) );
165 producer = calloc( 1, sizeof( struct mlt_producer_s ) );
168 if ( mlt_producer_init( producer, self ) == 0 )
170 self->parent = producer;
172 // Get the properties
173 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
175 // Set the resource property (required for all producers)
176 mlt_properties_set( properties, "resource", file );
178 // Register transport implementation with the producer
179 producer->close = (mlt_destructor) producer_close;
181 // Register our get_frame implementation
182 producer->get_frame = producer_get_frame;
184 if ( strcmp( service, "avformat-novalidate" ) )
187 if ( producer_open( self, profile, file ) != 0 )
190 mlt_producer_close( producer );
193 else if ( self->seekable )
195 // Close the file to release resources for large playlists - reopen later as needed
197 if ( self->audio_format )
198 av_close_input_file( self->audio_format );
199 self->audio_format = NULL;
200 if ( self->video_format )
201 av_close_input_file( self->video_format );
202 self->video_format = NULL;
208 // Default the user-selectable indices from the auto-detected indices
209 mlt_properties_set_int( properties, "audio_index", self->audio_index );
210 mlt_properties_set_int( properties, "video_index", self->video_index );
212 mlt_service_cache_set_size( MLT_PRODUCER_SERVICE(producer), "producer_avformat", 5 );
214 mlt_service_cache_put( MLT_PRODUCER_SERVICE(producer), "producer_avformat", self, 0, (mlt_destructor) producer_avformat_close );
221 int list_components( char* file )
225 // Report information about available demuxers and codecs as YAML Tiny
226 if ( file && strstr( file, "f-list" ) )
228 fprintf( stderr, "---\nformats:\n" );
229 AVInputFormat *format = NULL;
230 while ( ( format = av_iformat_next( format ) ) )
231 fprintf( stderr, " - %s\n", format->name );
232 fprintf( stderr, "...\n" );
235 if ( file && strstr( file, "acodec-list" ) )
237 fprintf( stderr, "---\naudio_codecs:\n" );
238 AVCodec *codec = NULL;
239 while ( ( codec = av_codec_next( codec ) ) )
240 if ( codec->decode && codec->type == CODEC_TYPE_AUDIO )
241 fprintf( stderr, " - %s\n", codec->name );
242 fprintf( stderr, "...\n" );
245 if ( file && strstr( file, "vcodec-list" ) )
247 fprintf( stderr, "---\nvideo_codecs:\n" );
248 AVCodec *codec = NULL;
249 while ( ( codec = av_codec_next( codec ) ) )
250 if ( codec->decode && codec->type == CODEC_TYPE_VIDEO )
251 fprintf( stderr, " - %s\n", codec->name );
252 fprintf( stderr, "...\n" );
259 /** Find the default streams.
262 static mlt_properties find_default_streams( producer_avformat self )
266 AVMetadataTag *tag = NULL;
267 AVFormatContext *context = self->video_format;
268 mlt_properties meta_media = MLT_PRODUCER_PROPERTIES( self->parent );
270 // Default to the first audio and video streams found
271 self->audio_index = -1;
272 self->video_index = -1;
274 mlt_properties_set_int( meta_media, "meta.media.nb_streams", context->nb_streams );
276 // Allow for multiple audio and video streams in the file and select first of each (if available)
277 for( i = 0; i < context->nb_streams; i++ )
279 // Get the codec context
280 AVStream *stream = context->streams[ i ];
281 if ( ! stream ) continue;
282 AVCodecContext *codec_context = stream->codec;
283 if ( ! codec_context ) continue;
284 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
285 if ( ! codec ) continue;
287 snprintf( key, sizeof(key), "meta.media.%d.stream.type", i );
289 // Determine the type and obtain the first index of each type
290 switch( codec_context->codec_type )
292 case CODEC_TYPE_VIDEO:
293 // Use first video stream
294 if ( self->video_index < 0 )
295 self->video_index = i;
296 mlt_properties_set( meta_media, key, "video" );
297 snprintf( key, sizeof(key), "meta.media.%d.stream.frame_rate", i );
298 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(42<<8)+0)
299 double ffmpeg_fps = av_q2d( context->streams[ i ]->avg_frame_rate );
300 if ( isnan( ffmpeg_fps ) || ffmpeg_fps == 0 )
301 ffmpeg_fps = av_q2d( context->streams[ i ]->r_frame_rate );
302 mlt_properties_set_double( meta_media, key, ffmpeg_fps );
304 mlt_properties_set_double( meta_media, key, av_q2d( context->streams[ i ]->r_frame_rate ) );
307 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
308 snprintf( key, sizeof(key), "meta.media.%d.stream.sample_aspect_ratio", i );
309 mlt_properties_set_double( meta_media, key, av_q2d( context->streams[ i ]->sample_aspect_ratio ) );
311 snprintf( key, sizeof(key), "meta.media.%d.codec.frame_rate", i );
312 mlt_properties_set_double( meta_media, key, (double) codec_context->time_base.den /
313 ( codec_context->time_base.num == 0 ? 1 : codec_context->time_base.num ) );
314 snprintf( key, sizeof(key), "meta.media.%d.codec.pix_fmt", i );
315 mlt_properties_set( meta_media, key, avcodec_get_pix_fmt_name( codec_context->pix_fmt ) );
316 snprintf( key, sizeof(key), "meta.media.%d.codec.sample_aspect_ratio", i );
317 mlt_properties_set_double( meta_media, key, av_q2d( codec_context->sample_aspect_ratio ) );
318 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
319 snprintf( key, sizeof(key), "meta.media.%d.codec.colorspace", i );
320 switch ( codec_context->colorspace )
322 case AVCOL_SPC_SMPTE240M:
323 mlt_properties_set_int( meta_media, key, 240 );
325 case AVCOL_SPC_BT470BG:
326 case AVCOL_SPC_SMPTE170M:
327 mlt_properties_set_int( meta_media, key, 601 );
329 case AVCOL_SPC_BT709:
330 mlt_properties_set_int( meta_media, key, 709 );
333 // This is a heuristic Charles Poynton suggests in "Digital Video and HDTV"
334 mlt_properties_set_int( meta_media, key, codec_context->width * codec_context->height > 750000 ? 709 : 601 );
339 case CODEC_TYPE_AUDIO:
340 // Use first audio stream
341 if ( self->audio_index < 0 )
342 self->audio_index = i;
343 mlt_properties_set( meta_media, key, "audio" );
344 #if LIBAVCODEC_VERSION_MAJOR > 52
345 snprintf( key, sizeof(key), "meta.media.%d.codec.sample_fmt", i );
346 mlt_properties_set( meta_media, key, av_get_sample_fmt_name( codec_context->sample_fmt ) );
347 #elif (LIBAVCODEC_VERSION_INT >= ((51<<16)+(71<<8)+0))
348 snprintf( key, sizeof(key), "meta.media.%d.codec.sample_fmt", i );
349 mlt_properties_set( meta_media, key, avcodec_get_sample_fmt_name( codec_context->sample_fmt ) );
351 snprintf( key, sizeof(key), "meta.media.%d.codec.sample_rate", i );
352 mlt_properties_set_int( meta_media, key, codec_context->sample_rate );
353 snprintf( key, sizeof(key), "meta.media.%d.codec.channels", i );
354 mlt_properties_set_int( meta_media, key, codec_context->channels );
359 // snprintf( key, sizeof(key), "meta.media.%d.stream.time_base", i );
360 // mlt_properties_set_double( meta_media, key, av_q2d( context->streams[ i ]->time_base ) );
361 snprintf( key, sizeof(key), "meta.media.%d.codec.name", i );
362 mlt_properties_set( meta_media, key, codec->name );
363 #if (LIBAVCODEC_VERSION_INT >= ((51<<16)+(55<<8)+0))
364 snprintf( key, sizeof(key), "meta.media.%d.codec.long_name", i );
365 mlt_properties_set( meta_media, key, codec->long_name );
367 snprintf( key, sizeof(key), "meta.media.%d.codec.bit_rate", i );
368 mlt_properties_set_int( meta_media, key, codec_context->bit_rate );
369 // snprintf( key, sizeof(key), "meta.media.%d.codec.time_base", i );
370 // mlt_properties_set_double( meta_media, key, av_q2d( codec_context->time_base ) );
371 // snprintf( key, sizeof(key), "meta.media.%d.codec.profile", i );
372 // mlt_properties_set_int( meta_media, key, codec_context->profile );
373 // snprintf( key, sizeof(key), "meta.media.%d.codec.level", i );
374 // mlt_properties_set_int( meta_media, key, codec_context->level );
377 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
378 while ( ( tag = av_metadata_get( stream->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX ) ) )
380 if ( tag->value && strcmp( tag->value, "" ) && strcmp( tag->value, "und" ) )
382 snprintf( key, sizeof(key), "meta.attr.%d.stream.%s.markup", i, tag->key );
383 mlt_properties_set( meta_media, key, tag->value );
388 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
389 while ( ( tag = av_metadata_get( context->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX ) ) )
391 if ( tag->value && strcmp( tag->value, "" ) && strcmp( tag->value, "und" ) )
393 snprintf( key, sizeof(key), "meta.attr.%s.markup", tag->key );
394 mlt_properties_set( meta_media, key, tag->value );
398 if ( context->title && strcmp( context->title, "" ) )
399 mlt_properties_set(properties, "meta.attr.title.markup", context->title );
400 if ( context->author && strcmp( context->author, "" ) )
401 mlt_properties_set(properties, "meta.attr.author.markup", context->author );
402 if ( context->copyright && strcmp( context->copyright, "" ) )
403 mlt_properties_set(properties, "meta.attr.copyright.markup", context->copyright );
404 if ( context->comment )
405 mlt_properties_set(properties, "meta.attr.comment.markup", context->comment );
406 if ( context->album )
407 mlt_properties_set(properties, "meta.attr.album.markup", context->album );
409 mlt_properties_set_int(properties, "meta.attr.year.markup", context->year );
410 if ( context->track )
411 mlt_properties_set_int(properties, "meta.attr.track.markup", context->track );
417 static inline int dv_is_pal( AVPacket *pkt )
419 return pkt->data[3] & 0x80;
422 static int dv_is_wide( AVPacket *pkt )
424 int i = 80 /* block size */ *3 /* VAUX starts at block 3 */ +3 /* skip block header */;
426 for ( ; i < pkt->size; i += 5 /* packet size */ )
428 if ( pkt->data[ i ] == 0x61 )
430 uint8_t x = pkt->data[ i + 2 ] & 0x7;
431 return ( x == 2 ) || ( x == 7 );
437 static double get_aspect_ratio( mlt_properties properties, AVStream *stream, AVCodecContext *codec_context, AVPacket *pkt )
439 double aspect_ratio = 1.0;
441 if ( codec_context->codec_id == CODEC_ID_DVVIDEO )
445 if ( dv_is_pal( pkt ) )
447 if ( dv_is_wide( pkt ) )
449 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 64 );
450 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 45 );
454 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 16 );
455 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 15 );
460 if ( dv_is_wide( pkt ) )
462 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 32 );
463 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 27 );
467 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 8 );
468 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 9 );
475 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
476 stream->sample_aspect_ratio;
478 codec_context->sample_aspect_ratio;
480 // Override FFmpeg's notion of DV aspect ratios, which are
481 // based upon a width of 704. Since we do not have a normaliser
482 // that crops (nor is cropping 720 wide ITU-R 601 video always desirable)
483 // we just coerce the values to facilitate a passive behaviour through
484 // the rescale normaliser when using equivalent producers and consumers.
485 // = display_aspect / (width * height)
486 if ( ar.num == 10 && ar.den == 11 )
489 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 8 );
490 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 9 );
492 else if ( ar.num == 59 && ar.den == 54 )
495 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 16 );
496 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 15 );
498 else if ( ar.num == 40 && ar.den == 33 )
501 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 32 );
502 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 27 );
504 else if ( ar.num == 118 && ar.den == 81 )
507 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 64 );
508 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 45 );
514 AVRational codec_sar = codec_context->sample_aspect_ratio;
515 AVRational stream_sar =
516 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
517 stream->sample_aspect_ratio;
521 if ( codec_sar.num > 0 )
523 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", codec_sar.num );
524 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", codec_sar.den );
526 else if ( stream_sar.num > 0 )
528 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", stream_sar.num );
529 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", stream_sar.den );
533 mlt_properties_set_int( properties, "meta.media.sample_aspect_num", 1 );
534 mlt_properties_set_int( properties, "meta.media.sample_aspect_den", 1 );
537 AVRational ar = { mlt_properties_get_double( properties, "meta.media.sample_aspect_num" ), mlt_properties_get_double( properties, "meta.media.sample_aspect_den" ) };
538 aspect_ratio = av_q2d( ar );
539 mlt_properties_set_double( properties, "aspect_ratio", aspect_ratio );
544 static char* parse_url( mlt_profile profile, const char* URL, AVInputFormat **format, AVFormatParameters *params )
546 if ( !URL ) return NULL;
548 const char *result = URL;
549 char *protocol = strdup( URL );
550 char *url = strchr( protocol, ':' );
552 // Only if there is not a protocol specification that avformat can handle
553 #if LIBAVFORMAT_VERSION_MAJOR > 52
554 if ( url && avio_check( URL, 0 ) < 0 )
556 if ( url && !url_exist( URL ) )
559 // Truncate protocol string
561 mlt_log_debug( NULL, "%s: protocol=%s resource=%s\n", __FUNCTION__, protocol, url + 1 );
564 *format = av_find_input_format( protocol );
566 // Eat the format designator
571 // These are required by video4linux2 (defaults)
572 params->width = profile->width;
573 params->height = profile->height;
574 params->time_base= (AVRational){ profile->frame_rate_den, profile->frame_rate_num };
575 params->channels = 2;
576 params->sample_rate = 48000;
579 url = strchr( url, '?' );
583 char *name = strdup( ++url );
584 char *value = strchr( name, ':' );
589 char *t = strchr( value, '&' );
592 if ( !strcmp( name, "frame_rate" ) )
593 params->time_base.den = atoi( value );
594 else if ( !strcmp( name, "frame_rate_base" ) )
595 params->time_base.num = atoi( value );
596 else if ( !strcmp( name, "sample_rate" ) )
597 params->sample_rate = atoi( value );
598 else if ( !strcmp( name, "channel" ) )
599 params->channel = atoi( value );
600 else if ( !strcmp( name, "channels" ) )
601 params->channels = atoi( value );
602 #if (LIBAVUTIL_VERSION_INT > ((50<<16)+(7<<8)+0))
603 else if ( !strcmp( name, "pix_fmt" ) )
604 params->pix_fmt = av_get_pix_fmt( value );
606 else if ( !strcmp( name, "width" ) )
607 params->width = atoi( value );
608 else if ( !strcmp( name, "height" ) )
609 params->height = atoi( value );
610 else if ( !strcmp( name, "standard" ) )
611 params->standard = strdup( value );
614 url = strchr( url, '&' );
619 return strdup( result );
622 static int get_basic_info( producer_avformat self, mlt_profile profile, const char *filename )
626 // Get the properties
627 mlt_properties properties = MLT_PRODUCER_PROPERTIES( self->parent );
629 AVFormatContext *format = self->video_format;
631 // We will treat everything with the producer fps.
632 // TODO: make this more flexible.
633 double fps = mlt_profile_fps( profile );
636 if ( !mlt_properties_get_int( properties, "_length_computed" ) )
638 // The _length_computed flag prevents overwriting explicity set length/out/eof properties
639 // when producer_open is called after initial call when restoring or reseting the producer.
640 if ( format->duration != AV_NOPTS_VALUE )
642 // This isn't going to be accurate for all formats
643 mlt_position frames = ( mlt_position )( ( ( double )format->duration / ( double )AV_TIME_BASE ) * fps );
644 mlt_properties_set_position( properties, "out", frames - 1 );
645 mlt_properties_set_position( properties, "length", frames );
646 mlt_properties_set_int( properties, "_length_computed", 1 );
650 // Set live sources to run forever
651 mlt_properties_set_position( properties, "length", INT_MAX );
652 mlt_properties_set_position( properties, "out", INT_MAX - 1 );
653 mlt_properties_set( properties, "eof", "loop" );
654 mlt_properties_set_int( properties, "_length_computed", 1 );
658 if ( format->start_time != AV_NOPTS_VALUE )
659 self->start_time = format->start_time;
661 // Check if we're seekable
662 // avdevices are typically AVFMT_NOFILE and not seekable
663 self->seekable = !format->iformat || !( format->iformat->flags & AVFMT_NOFILE );
666 // protocols can indicate if they support seeking
667 #if LIBAVFORMAT_VERSION_MAJOR > 52
668 self->seekable = format->pb->seekable;
670 URLContext *uc = url_fileno( format->pb );
672 self->seekable = !uc->is_streamed;
675 if ( self->seekable )
677 // Do a more rigourous test of seekable on a disposable context
678 self->seekable = av_seek_frame( format, -1, self->start_time, AVSEEK_FLAG_BACKWARD ) >= 0;
679 mlt_properties_set_int( properties, "seekable", self->seekable );
680 self->dummy_context = format;
681 av_open_input_file( &self->video_format, filename, NULL, 0, NULL );
682 format = self->video_format;
683 av_find_stream_info( format );
686 // Fetch the width, height and aspect ratio
687 if ( self->video_index != -1 )
689 AVCodecContext *codec_context = format->streams[ self->video_index ]->codec;
690 mlt_properties_set_int( properties, "width", codec_context->width );
691 mlt_properties_set_int( properties, "height", codec_context->height );
693 if ( codec_context->codec_id == CODEC_ID_DVVIDEO )
695 // Fetch the first frame of DV so we can read it directly
700 ret = av_read_frame( format, &pkt );
701 if ( ret >= 0 && pkt.stream_index == self->video_index && pkt.size > 0 )
703 get_aspect_ratio( properties, format->streams[ self->video_index ], codec_context, &pkt );
710 get_aspect_ratio( properties, format->streams[ self->video_index ], codec_context, NULL );
714 // Verify that we can convert this to YUV 4:2:2
715 // TODO: we can now also return RGB and RGBA and quite possibly more in the future.
716 struct SwsContext *context = sws_getContext( codec_context->width, codec_context->height, codec_context->pix_fmt,
717 codec_context->width, codec_context->height, PIX_FMT_YUYV422, SWS_BILINEAR, NULL, NULL, NULL);
719 sws_freeContext( context );
730 static int producer_open( producer_avformat self, mlt_profile profile, const char *URL )
732 // Return an error code (0 == no error)
734 mlt_properties properties = MLT_PRODUCER_PROPERTIES( self->parent );
737 pthread_mutex_init( &self->audio_mutex, NULL );
738 pthread_mutex_init( &self->video_mutex, NULL );
739 pthread_mutex_init( &self->packets_mutex, NULL );
740 mlt_events_block( properties, self->parent );
741 pthread_mutex_lock( &self->audio_mutex );
742 pthread_mutex_lock( &self->video_mutex );
745 AVInputFormat *format = NULL;
746 AVFormatParameters params;
747 memset( ¶ms, 0, sizeof(params) );
748 char *filename = parse_url( profile, URL, &format, ¶ms );
750 // Now attempt to open the file or device with filename
751 #if LIBAVFORMAT_VERSION_MAJOR > 52
752 self->video_format = avformat_alloc_context();
753 self->video_format->flags |= AVFMT_FLAG_PRIV_OPT;
755 error = av_open_input_file( &self->video_format, filename, format, 0, ¶ms ) < 0;
757 // If the URL is a network stream URL, then we probably need to open with full URL
758 error = av_open_input_file( &self->video_format, URL, format, 0, ¶ms ) < 0;
760 // Set MLT properties onto video AVFormatContext
761 if ( !error && self->video_format )
763 apply_properties( self->video_format, properties, AV_OPT_FLAG_DECODING_PARAM );
764 #if LIBAVFORMAT_VERSION_MAJOR > 52
765 if ( self->video_format->iformat && self->video_format->iformat->priv_class && self->video_format->priv_data )
766 apply_properties( self->video_format->priv_data, properties, AV_OPT_FLAG_DECODING_PARAM );
767 error = av_demuxer_open( self->video_format, ¶ms );
769 else if ( self->video_format )
771 avformat_free_context( self->video_format );
772 self->video_format = NULL;
776 // Cleanup AVFormatParameters
777 if ( params.standard )
778 free( (void*) params.standard );
780 // If successful, then try to get additional info
783 // Get the stream info
784 error = av_find_stream_info( self->video_format ) < 0;
786 // Continue if no error
789 // Find default audio and video streams
790 find_default_streams( self );
791 error = get_basic_info( self, profile, filename );
793 // Initialize position info
794 self->first_pts = -1;
795 self->last_position = POSITION_INITIAL;
797 // We're going to cheat here - for seekable A/V files, we will have separate contexts
798 // to support independent seeking of audio from video.
799 // TODO: Is this really necessary?
800 if ( self->audio_index != -1 && self->video_index != -1 )
802 if ( self->seekable )
804 // And open again for our audio context
805 av_open_input_file( &self->audio_format, filename, NULL, 0, NULL );
806 apply_properties( self->audio_format, properties, AV_OPT_FLAG_DECODING_PARAM );
807 #if LIBAVFORMAT_VERSION_MAJOR > 52
808 if ( self->audio_format->iformat && self->audio_format->iformat->priv_class && self->audio_format->priv_data )
809 apply_properties( self->audio_format->priv_data, properties, AV_OPT_FLAG_DECODING_PARAM );
811 av_find_stream_info( self->audio_format );
815 self->audio_format = self->video_format;
818 else if ( self->audio_index != -1 )
820 // We only have an audio context
821 self->audio_format = self->video_format;
822 self->video_format = NULL;
824 else if ( self->video_index == -1 )
826 // Something has gone wrong
829 if ( self->audio_format && !self->audio_streams )
830 get_audio_streams_info( self );
837 self->apackets = mlt_deque_init();
838 self->vpackets = mlt_deque_init();
841 if ( self->dummy_context )
843 av_close_input_file( self->dummy_context );
844 self->dummy_context = NULL;
847 // Unlock the service
848 pthread_mutex_unlock( &self->audio_mutex );
849 pthread_mutex_unlock( &self->video_mutex );
850 mlt_events_unblock( properties, self->parent );
855 static void reopen_video( producer_avformat self, mlt_producer producer )
857 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
858 mlt_service_lock( MLT_PRODUCER_SERVICE( producer ) );
859 pthread_mutex_lock( &self->audio_mutex );
861 if ( self->video_codec )
864 avcodec_close( self->video_codec );
867 self->video_codec = NULL;
868 if ( self->dummy_context )
869 av_close_input_file( self->dummy_context );
870 self->dummy_context = NULL;
871 if ( self->video_format )
872 av_close_input_file( self->video_format );
873 self->video_format = NULL;
875 int audio_index = self->audio_index;
876 int video_index = self->video_index;
878 pthread_mutex_unlock( &self->audio_mutex );
879 pthread_mutex_unlock( &self->video_mutex );
880 producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
881 mlt_properties_get( properties, "resource" ) );
882 pthread_mutex_lock( &self->video_mutex );
883 pthread_mutex_lock( &self->audio_mutex );
885 self->audio_index = audio_index;
886 if ( self->video_format && video_index > -1 )
888 self->video_index = video_index;
889 video_codec_init( self, video_index, properties );
892 pthread_mutex_unlock( &self->audio_mutex );
893 mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
896 static int seek_video( producer_avformat self, mlt_position position,
897 int req_position, int must_decode, int use_new_seek, int *ignore )
899 mlt_producer producer = self->parent;
902 if ( self->seekable && ( position != self->video_expected || self->last_position < 0 ) )
904 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
906 // Fetch the video format context
907 AVFormatContext *context = self->video_format;
909 // Get the video stream
910 AVStream *stream = context->streams[ self->video_index ];
913 AVCodecContext *codec_context = stream->codec;
915 // We may want to use the source fps if available
916 double source_fps = mlt_properties_get_double( properties, "meta.media.frame_rate_num" ) /
917 mlt_properties_get_double( properties, "meta.media.frame_rate_den" );
919 if ( self->av_frame && position + 1 == self->video_expected )
921 // We're paused - use last image
924 else if ( !self->seekable && position > self->video_expected && ( position - self->video_expected ) < 250 )
926 // Fast forward - seeking is inefficient for small distances - just ignore following frames
927 *ignore = ( int )( ( position - self->video_expected ) / mlt_producer_get_fps( producer ) * source_fps );
928 codec_context->skip_loop_filter = AVDISCARD_NONREF;
930 else if ( self->seekable && ( position < self->video_expected || position - self->video_expected >= 12 || self->last_position < 0 ) )
932 if ( use_new_seek && self->last_position == POSITION_INITIAL )
934 // find first key frame
939 while ( ret >= 0 && toscan-- > 0 )
941 ret = av_read_frame( context, &pkt );
942 if ( ret >= 0 && ( pkt.flags & PKT_FLAG_KEY ) && pkt.stream_index == self->video_index )
944 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) );
945 self->first_pts = pkt.pts;
948 av_free_packet( &pkt );
951 av_seek_frame( context, -1, 0, AVSEEK_FLAG_BACKWARD );
954 // Calculate the timestamp for the requested frame
958 timestamp = ( req_position - 0.1 / source_fps ) /
959 ( av_q2d( stream->time_base ) * source_fps );
960 mlt_log_verbose( MLT_PRODUCER_SERVICE(producer), "pos %d pts %"PRId64" ", req_position, timestamp );
961 if ( self->first_pts > 0 )
962 timestamp += self->first_pts;
963 else if ( context->start_time != AV_NOPTS_VALUE )
964 timestamp += context->start_time;
968 timestamp = ( int64_t )( ( double )req_position / source_fps * AV_TIME_BASE + 0.5 );
969 if ( context->start_time != AV_NOPTS_VALUE )
970 timestamp += context->start_time;
973 timestamp -= AV_TIME_BASE;
976 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "seeking timestamp %"PRId64" position %d expected %d last_pos %d\n",
977 timestamp, position, self->video_expected, self->last_position );
979 // Seek to the timestamp
982 codec_context->skip_loop_filter = AVDISCARD_NONREF;
983 av_seek_frame( context, self->video_index, timestamp, AVSEEK_FLAG_BACKWARD );
985 else if ( req_position > 0 || self->last_position <= 0 )
987 av_seek_frame( context, -1, timestamp, AVSEEK_FLAG_BACKWARD );
991 // Re-open video stream when rewinding to beginning from somewhere else.
992 // This is rather ugly, and I prefer not to do it this way, but ffmpeg is
993 // not reliably seeking to the first frame across formats.
994 reopen_video( self, producer );
997 // Remove the cached info relating to the previous position
998 self->current_position = POSITION_INVALID;
999 self->last_position = POSITION_INVALID;
1000 av_freep( &self->av_frame );
1004 // flush any pictures still in decode buffer
1005 avcodec_flush_buffers( codec_context );
1012 /** Convert a frame position to a time code.
1015 static double producer_time_of_frame( mlt_producer producer, mlt_position position )
1017 return ( double )position / mlt_producer_get_fps( producer );
1020 // Collect information about all audio streams
1022 static void get_audio_streams_info( producer_avformat self )
1024 // Fetch the audio format context
1025 AVFormatContext *context = self->audio_format;
1029 i < context->nb_streams;
1032 if ( context->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO )
1034 AVCodecContext *codec_context = context->streams[i]->codec;
1035 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
1037 // If we don't have a codec and we can't initialise it, we can't do much more...
1039 if ( codec && avcodec_open( codec_context, codec ) >= 0 )
1041 self->audio_streams++;
1042 self->audio_max_stream = i;
1043 self->total_channels += codec_context->channels;
1044 if ( codec_context->channels > self->max_channel )
1045 self->max_channel = codec_context->channels;
1046 if ( codec_context->sample_rate > self->max_frequency )
1047 self->max_frequency = codec_context->sample_rate;
1048 avcodec_close( codec_context );
1053 mlt_log_verbose( NULL, "[producer avformat] audio: total_streams %d max_stream %d total_channels %d max_channels %d\n",
1054 self->audio_streams, self->audio_max_stream, self->total_channels, self->max_channel );
1056 // Other audio-specific initializations
1057 self->resample_factor = 1.0;
1060 static void set_luma_transfer( struct SwsContext *context, int colorspace, int use_full_range )
1062 #if defined(SWSCALE) && (LIBSWSCALE_VERSION_INT >= ((0<<16)+(7<<8)+2))
1064 const int *new_coefficients;
1066 int brightness, contrast, saturation;
1068 if ( sws_getColorspaceDetails( context, &coefficients, &full_range, &coefficients, &full_range,
1069 &brightness, &contrast, &saturation ) != -1 )
1071 // Don't change these from defaults unless explicitly told to.
1072 if ( use_full_range >= 0 )
1073 full_range = use_full_range;
1074 switch ( colorspace )
1080 new_coefficients = sws_getCoefficients( SWS_CS_ITU601 );
1083 new_coefficients = sws_getCoefficients( SWS_CS_SMPTE240M );
1086 new_coefficients = sws_getCoefficients( SWS_CS_ITU709 );
1089 new_coefficients = coefficients;
1092 sws_setColorspaceDetails( context, new_coefficients, full_range, new_coefficients, full_range,
1093 brightness, contrast, saturation );
1098 static inline void convert_image( AVFrame *frame, uint8_t *buffer, int pix_fmt,
1099 mlt_image_format *format, int width, int height, int colorspace )
1102 int full_range = -1;
1103 int flags = SWS_BILINEAR | SWS_ACCURATE_RND;
1106 flags |= SWS_CPU_CAPS_MMX;
1109 flags |= SWS_CPU_CAPS_MMX2;
1112 if ( pix_fmt == PIX_FMT_RGB32 )
1114 *format = mlt_image_rgb24a;
1115 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1116 width, height, PIX_FMT_RGBA, flags, NULL, NULL, NULL);
1118 avpicture_fill( &output, buffer, PIX_FMT_RGBA, width, height );
1119 set_luma_transfer( context, colorspace, full_range );
1120 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1121 output.data, output.linesize);
1122 sws_freeContext( context );
1124 else if ( *format == mlt_image_yuv420p )
1126 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1127 width, height, PIX_FMT_YUV420P, flags, NULL, NULL, NULL);
1129 output.data[0] = buffer;
1130 output.data[1] = buffer + width * height;
1131 output.data[2] = buffer + ( 5 * width * height ) / 4;
1132 output.linesize[0] = width;
1133 output.linesize[1] = width >> 1;
1134 output.linesize[2] = width >> 1;
1135 set_luma_transfer( context, colorspace, full_range );
1136 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1137 output.data, output.linesize);
1138 sws_freeContext( context );
1140 else if ( *format == mlt_image_rgb24 )
1142 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1143 width, height, PIX_FMT_RGB24, flags | SWS_FULL_CHR_H_INT, NULL, NULL, NULL);
1145 avpicture_fill( &output, buffer, PIX_FMT_RGB24, width, height );
1146 set_luma_transfer( context, colorspace, full_range );
1147 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1148 output.data, output.linesize);
1149 sws_freeContext( context );
1151 else if ( *format == mlt_image_rgb24a || *format == mlt_image_opengl )
1153 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1154 width, height, PIX_FMT_RGBA, flags | SWS_FULL_CHR_H_INT, NULL, NULL, NULL);
1156 avpicture_fill( &output, buffer, PIX_FMT_RGBA, width, height );
1157 set_luma_transfer( context, colorspace, full_range );
1158 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1159 output.data, output.linesize);
1160 sws_freeContext( context );
1164 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1165 width, height, PIX_FMT_YUYV422, flags | SWS_FULL_CHR_H_INP, NULL, NULL, NULL);
1167 avpicture_fill( &output, buffer, PIX_FMT_YUYV422, width, height );
1168 set_luma_transfer( context, colorspace, full_range );
1169 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1170 output.data, output.linesize);
1171 sws_freeContext( context );
1174 if ( *format == mlt_image_yuv420p )
1177 pict.data[0] = buffer;
1178 pict.data[1] = buffer + width * height;
1179 pict.data[2] = buffer + ( 5 * width * height ) / 4;
1180 pict.linesize[0] = width;
1181 pict.linesize[1] = width >> 1;
1182 pict.linesize[2] = width >> 1;
1183 img_convert( &pict, PIX_FMT_YUV420P, (AVPicture *)frame, pix_fmt, width, height );
1185 else if ( *format == mlt_image_rgb24 )
1188 avpicture_fill( &output, buffer, PIX_FMT_RGB24, width, height );
1189 img_convert( &output, PIX_FMT_RGB24, (AVPicture *)frame, pix_fmt, width, height );
1191 else if ( format == mlt_image_rgb24a || format == mlt_image_opengl )
1194 avpicture_fill( &output, buffer, PIX_FMT_RGB32, width, height );
1195 img_convert( &output, PIX_FMT_RGB32, (AVPicture *)frame, pix_fmt, width, height );
1200 avpicture_fill( &output, buffer, PIX_FMT_YUYV422, width, height );
1201 img_convert( &output, PIX_FMT_YUYV422, (AVPicture *)frame, pix_fmt, width, height );
1206 /** Allocate the image buffer and set it on the frame.
1209 static int allocate_buffer( mlt_frame frame, AVCodecContext *codec_context, uint8_t **buffer, mlt_image_format *format, int *width, int *height )
1213 if ( codec_context->width == 0 || codec_context->height == 0 )
1216 *width = codec_context->width;
1217 *height = codec_context->height;
1219 if ( codec_context->pix_fmt == PIX_FMT_RGB32 )
1220 size = *width * ( *height + 1 ) * 4;
1222 size = mlt_image_format_size( *format, *width, *height, NULL );
1224 // Construct the output image
1225 *buffer = mlt_pool_alloc( size );
1227 mlt_frame_set_image( frame, *buffer, size, mlt_pool_release );
1234 /** Get an image from a frame.
1237 static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
1240 producer_avformat self = mlt_frame_pop_service( frame );
1241 mlt_producer producer = self->parent;
1243 // Get the properties from the frame
1244 mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
1246 // Obtain the frame number of this frame
1247 mlt_position position = mlt_properties_get_position( frame_properties, "avformat_position" );
1249 // Get the producer properties
1250 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
1252 pthread_mutex_lock( &self->video_mutex );
1254 // Fetch the video format context
1255 AVFormatContext *context = self->video_format;
1257 // Get the video stream
1258 AVStream *stream = context->streams[ self->video_index ];
1260 // Get codec context
1261 AVCodecContext *codec_context = stream->codec;
1263 // Get the image cache
1264 if ( ! self->image_cache && ! mlt_properties_get_int( properties, "noimagecache" ) )
1265 self->image_cache = mlt_cache_init();
1266 if ( self->image_cache )
1268 mlt_cache_item item = mlt_cache_get( self->image_cache, (void*) position );
1269 uint8_t *original = mlt_cache_item_data( item, (int*) format );
1272 // Set the resolution
1273 *width = codec_context->width;
1274 *height = codec_context->height;
1276 // Workaround 1088 encodings missing cropping info.
1277 if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1281 int size = mlt_image_format_size( *format, *width, *height, NULL );
1284 *buffer = mlt_pool_alloc( size );
1285 mlt_frame_set_image( frame, *buffer, size, mlt_pool_release );
1286 memcpy( *buffer, original, size );
1287 mlt_cache_item_close( item );
1292 mlt_properties_set_data( frame_properties, "avformat.image_cache", item, 0, ( mlt_destructor )mlt_cache_item_close, NULL );
1293 mlt_frame_set_image( frame, *buffer, size, NULL );
1295 self->got_picture = 1;
1297 goto exit_get_image;
1306 // Special case ffwd handling
1309 // We may want to use the source fps if available
1310 double source_fps = mlt_properties_get_double( properties, "meta.media.frame_rate_num" ) /
1311 mlt_properties_get_double( properties, "meta.media.frame_rate_den" );
1313 // This is the physical frame position in the source
1314 int req_position = ( int )( position / mlt_producer_get_fps( producer ) * source_fps + 0.5 );
1316 // Determines if we have to decode all frames in a sequence
1317 // Temporary hack to improve intra frame only
1318 int must_decode = strcmp( codec_context->codec->name, "dnxhd" ) &&
1319 strcmp( codec_context->codec->name, "dvvideo" ) &&
1320 strcmp( codec_context->codec->name, "huffyuv" ) &&
1321 strcmp( codec_context->codec->name, "mjpeg" ) &&
1322 strcmp( codec_context->codec->name, "rawvideo" );
1324 // Turn on usage of new seek API and PTS for seeking
1325 int use_new_seek = codec_context->codec_id == CODEC_ID_H264 && !strcmp( context->iformat->name, "mpegts" );
1326 if ( mlt_properties_get( properties, "new_seek" ) )
1327 use_new_seek = mlt_properties_get_int( properties, "new_seek" );
1329 // Seek if necessary
1330 int paused = seek_video( self, position, req_position, must_decode, use_new_seek, &ignore );
1332 // Seek might have reopened the file
1333 context = self->video_format;
1334 stream = context->streams[ self->video_index ];
1335 codec_context = stream->codec;
1337 // Duplicate the last image if necessary
1338 if ( self->av_frame && self->av_frame->linesize[0] && self->got_picture && self->seekable
1340 || self->current_position == req_position
1341 || ( !use_new_seek && self->current_position > req_position ) ) )
1344 if ( ( image_size = allocate_buffer( frame, codec_context, buffer, format, width, height ) ) )
1346 // Workaround 1088 encodings missing cropping info.
1347 if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1350 if ( self->vdpau && self->vdpau->buffer )
1353 picture.data[0] = self->vdpau->buffer;
1354 picture.data[2] = self->vdpau->buffer + codec_context->width * codec_context->height;
1355 picture.data[1] = self->vdpau->buffer + codec_context->width * codec_context->height * 5 / 4;
1356 picture.linesize[0] = codec_context->width;
1357 picture.linesize[1] = codec_context->width / 2;
1358 picture.linesize[2] = codec_context->width / 2;
1359 convert_image( (AVFrame*) &picture, *buffer,
1360 PIX_FMT_YUV420P, format, *width, *height, self->colorspace );
1364 convert_image( self->av_frame, *buffer, codec_context->pix_fmt,
1365 format, *width, *height, self->colorspace );
1368 mlt_frame_get_image( frame, buffer, format, width, height, writable );
1373 int int_position = 0;
1374 int decode_errors = 0;
1375 int got_picture = 0;
1377 av_init_packet( &pkt );
1379 // Construct an AVFrame for YUV422 conversion
1380 if ( !self->av_frame )
1381 self->av_frame = avcodec_alloc_frame( );
1383 while( ret >= 0 && !got_picture )
1386 pthread_mutex_lock( &self->packets_mutex );
1387 if ( mlt_deque_count( self->vpackets ) )
1389 AVPacket *tmp = (AVPacket*) mlt_deque_pop_front( self->vpackets );
1395 ret = av_read_frame( context, &pkt );
1396 if ( ret >= 0 && !self->seekable && pkt.stream_index == self->audio_index )
1398 if ( !av_dup_packet( &pkt ) )
1400 AVPacket *tmp = malloc( sizeof(AVPacket) );
1402 mlt_deque_push_back( self->apackets, tmp );
1406 pthread_mutex_unlock( &self->packets_mutex );
1408 // We only deal with video from the selected video_index
1409 if ( ret >= 0 && pkt.stream_index == self->video_index && pkt.size > 0 )
1411 // Determine time code of the packet
1414 int64_t pts = pkt.pts;
1415 if ( self->first_pts > 0 )
1416 pts -= self->first_pts;
1417 else if ( context->start_time != AV_NOPTS_VALUE )
1418 pts -= context->start_time;
1419 int_position = ( int )( av_q2d( stream->time_base ) * pts * source_fps + 0.1 );
1420 if ( pkt.pts == AV_NOPTS_VALUE )
1422 self->invalid_pts_counter++;
1423 if ( self->invalid_pts_counter > 20 )
1425 mlt_log_panic( MLT_PRODUCER_SERVICE(producer), "\ainvalid PTS; DISABLING NEW_SEEK!\n" );
1426 mlt_properties_set_int( properties, "new_seek", 0 );
1427 int_position = req_position;
1433 self->invalid_pts_counter = 0;
1435 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "pkt.pts %"PRId64" req_pos %d cur_pos %d pkt_pos %d\n",
1436 pkt.pts, req_position, self->current_position, int_position );
1440 if ( self->seekable && pkt.dts != AV_NOPTS_VALUE )
1442 int_position = ( int )( av_q2d( stream->time_base ) * pkt.dts * source_fps + 0.5 );
1443 if ( context->start_time != AV_NOPTS_VALUE )
1444 int_position -= ( int )( context->start_time * source_fps / AV_TIME_BASE + 0.5 );
1445 if ( int_position == self->last_position )
1446 int_position = self->last_position + 1;
1450 int_position = req_position;
1452 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "pkt.dts %"PRId64" req_pos %d cur_pos %d pkt_pos %d\n",
1453 pkt.dts, req_position, self->current_position, int_position );
1454 // Make a dumb assumption on streams that contain wild timestamps
1455 if ( abs( req_position - int_position ) > 999 )
1457 int_position = req_position;
1458 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), " WILD TIMESTAMP!" );
1461 self->last_position = int_position;
1464 if ( must_decode || int_position >= req_position )
1467 if ( g_vdpau && self->vdpau )
1469 if ( g_vdpau->producer != self )
1471 vdpau_decoder_close();
1472 vdpau_decoder_init( self );
1475 self->vdpau->is_decoded = 0;
1478 codec_context->reordered_opaque = pkt.pts;
1479 if ( int_position >= req_position )
1480 codec_context->skip_loop_filter = AVDISCARD_NONE;
1481 #if (LIBAVCODEC_VERSION_INT >= ((52<<16)+(26<<8)+0))
1482 ret = avcodec_decode_video2( codec_context, self->av_frame, &got_picture, &pkt );
1484 ret = avcodec_decode_video( codec_context, self->av_frame, &got_picture, pkt.data, pkt.size );
1486 // Note: decode may fail at the beginning of MPEGfile (B-frames referencing before first I-frame), so allow a few errors.
1489 if ( ++decode_errors <= 10 )
1502 // Determine time code of the packet
1503 int64_t pts = self->av_frame->reordered_opaque;
1504 if ( self->first_pts > 0 )
1505 pts -= self->first_pts;
1506 else if ( context->start_time != AV_NOPTS_VALUE )
1507 pts -= context->start_time;
1508 int_position = ( int )( av_q2d( stream->time_base) * pts * source_fps + 0.1 );
1509 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "got frame %d, key %d\n", int_position, self->av_frame->key_frame );
1512 if ( int_position < req_position )
1517 else if ( int_position >= req_position )
1520 codec_context->skip_loop_filter = AVDISCARD_NONE;
1522 else if ( ignore -- )
1527 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), " got_pic %d key %d\n", got_picture, pkt.flags & PKT_FLAG_KEY );
1530 // Now handle the picture if we have one
1533 if ( ( image_size = allocate_buffer( frame, codec_context, buffer, format, width, height ) ) )
1535 // Workaround 1088 encodings missing cropping info.
1536 if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1541 if ( self->vdpau->is_decoded )
1543 struct vdpau_render_state *render = (struct vdpau_render_state*) self->av_frame->data[0];
1545 uint32_t pitches[3];
1546 VdpYCbCrFormat dest_format = VDP_YCBCR_FORMAT_YV12;
1548 if ( !self->vdpau->buffer )
1549 self->vdpau->buffer = mlt_pool_alloc( codec_context->width * codec_context->height * 3 / 2 );
1550 self->av_frame->data[0] = planes[0] = self->vdpau->buffer;
1551 self->av_frame->data[2] = planes[1] = self->vdpau->buffer + codec_context->width * codec_context->height;
1552 self->av_frame->data[1] = planes[2] = self->vdpau->buffer + codec_context->width * codec_context->height * 5 / 4;
1553 self->av_frame->linesize[0] = pitches[0] = codec_context->width;
1554 self->av_frame->linesize[1] = pitches[1] = codec_context->width / 2;
1555 self->av_frame->linesize[2] = pitches[2] = codec_context->width / 2;
1557 VdpStatus status = vdp_surface_get_bits( render->surface, dest_format, planes, pitches );
1558 if ( status == VDP_STATUS_OK )
1560 convert_image( self->av_frame, *buffer, PIX_FMT_YUV420P,
1561 format, *width, *height, self->colorspace );
1565 mlt_log_error( MLT_PRODUCER_SERVICE(producer), "VDPAU Error: %s\n", vdp_get_error_string( status ) );
1566 image_size = self->vdpau->is_decoded = 0;
1571 mlt_log_error( MLT_PRODUCER_SERVICE(producer), "VDPAU error in VdpDecoderRender\n" );
1572 image_size = got_picture = 0;
1577 convert_image( self->av_frame, *buffer, codec_context->pix_fmt,
1578 format, *width, *height, self->colorspace );
1579 self->top_field_first |= self->av_frame->top_field_first;
1580 self->current_position = int_position;
1581 self->got_picture = 1;
1588 if ( self->seekable || pkt.stream_index != self->audio_index )
1589 av_free_packet( &pkt );
1593 if ( self->got_picture && image_size > 0 && self->image_cache )
1595 // Copy buffer to image cache
1596 uint8_t *image = mlt_pool_alloc( image_size );
1597 memcpy( image, *buffer, image_size );
1598 mlt_cache_put( self->image_cache, (void*) position, image, *format, mlt_pool_release );
1600 // Try to duplicate last image if there was a decoding failure
1601 else if ( !image_size && self->av_frame && self->av_frame->linesize[0] )
1604 if ( ( image_size = allocate_buffer( frame, codec_context, buffer, format, width, height ) ) )
1606 // Workaround 1088 encodings missing cropping info.
1607 if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1610 if ( self->vdpau && self->vdpau->buffer )
1613 picture.data[0] = self->vdpau->buffer;
1614 picture.data[2] = self->vdpau->buffer + codec_context->width * codec_context->height;
1615 picture.data[1] = self->vdpau->buffer + codec_context->width * codec_context->height * 5 / 4;
1616 picture.linesize[0] = codec_context->width;
1617 picture.linesize[1] = codec_context->width / 2;
1618 picture.linesize[2] = codec_context->width / 2;
1619 convert_image( (AVFrame*) &picture, *buffer,
1620 PIX_FMT_YUV420P, format, *width, *height, self->colorspace );
1624 convert_image( self->av_frame, *buffer, codec_context->pix_fmt,
1625 format, *width, *height, self->colorspace );
1626 self->got_picture = 1;
1629 mlt_frame_get_image( frame, buffer, format, width, height, writable );
1632 // Regardless of speed, we expect to get the next frame (cos we ain't too bright)
1633 self->video_expected = position + 1;
1637 pthread_mutex_unlock( &self->video_mutex );
1639 // Set the progressive flag
1640 if ( mlt_properties_get( properties, "force_progressive" ) )
1641 mlt_properties_set_int( frame_properties, "progressive", !!mlt_properties_get_int( properties, "force_progressive" ) );
1642 else if ( self->av_frame )
1643 mlt_properties_set_int( frame_properties, "progressive", !self->av_frame->interlaced_frame );
1645 // Set the field order property for this frame
1646 if ( mlt_properties_get( properties, "force_tff" ) )
1647 mlt_properties_set_int( frame_properties, "top_field_first", !!mlt_properties_get_int( properties, "force_tff" ) );
1649 mlt_properties_set_int( frame_properties, "top_field_first", self->top_field_first );
1651 // Set immutable properties of the selected track's (or overridden) source attributes.
1652 mlt_service_lock( MLT_PRODUCER_SERVICE( producer ) );
1653 mlt_properties_set_int( properties, "meta.media.top_field_first", self->top_field_first );
1654 mlt_properties_set_int( properties, "meta.media.progressive", mlt_properties_get_int( frame_properties, "progressive" ) );
1655 mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
1657 return !self->got_picture;
1660 /** Process properties as AVOptions and apply to AV context obj
1663 static void apply_properties( void *obj, mlt_properties properties, int flags )
1666 int count = mlt_properties_count( properties );
1667 for ( i = 0; i < count; i++ )
1669 const char *opt_name = mlt_properties_get_name( properties, i );
1670 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
1671 if ( opt_name && mlt_properties_get( properties, opt_name ) )
1674 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
1675 av_set_string3( obj, opt_name, mlt_properties_get( properties, opt_name), 0, NULL );
1676 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
1677 av_set_string2( obj, opt_name, mlt_properties_get( properties, opt_name), 0 );
1679 av_set_string( obj, opt_name, mlt_properties_get( properties, opt_name) );
1685 /** Initialize the video codec context.
1688 static int video_codec_init( producer_avformat self, int index, mlt_properties properties )
1690 // Initialise the codec if necessary
1691 if ( !self->video_codec )
1693 // Get the video stream
1694 AVStream *stream = self->video_format->streams[ index ];
1696 // Get codec context
1697 AVCodecContext *codec_context = stream->codec;
1700 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
1702 if ( codec_context->codec_id == CODEC_ID_H264 )
1704 if ( ( codec = avcodec_find_decoder_by_name( "h264_vdpau" ) ) )
1706 if ( vdpau_init( self ) )
1708 self->video_codec = codec_context;
1709 if ( !vdpau_decoder_init( self ) )
1710 vdpau_decoder_close();
1714 codec = avcodec_find_decoder( codec_context->codec_id );
1718 // Initialise multi-threading
1719 int thread_count = mlt_properties_get_int( properties, "threads" );
1720 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
1721 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
1722 if ( thread_count > 1 )
1723 codec_context->thread_count = thread_count;
1725 // If we don't have a codec and we can't initialise it, we can't do much more...
1727 if ( codec && avcodec_open( codec_context, codec ) >= 0 )
1729 // Now store the codec with its destructor
1730 self->video_codec = codec_context;
1734 // Remember that we can't use this later
1735 self->video_index = -1;
1741 // Process properties as AVOptions
1742 apply_properties( codec_context, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
1743 #if LIBAVCODEC_VERSION_MAJOR > 52
1744 if ( codec->priv_class && codec_context->priv_data )
1745 apply_properties( codec_context->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
1748 // Reset some image properties
1749 mlt_properties_set_int( properties, "width", self->video_codec->width );
1750 mlt_properties_set_int( properties, "height", self->video_codec->height );
1751 // For DV, we'll just use the saved aspect ratio
1752 if ( codec_context->codec_id != CODEC_ID_DVVIDEO )
1753 get_aspect_ratio( properties, stream, self->video_codec, NULL );
1755 // Determine the fps first from the codec
1756 double source_fps = (double) self->video_codec->time_base.den /
1757 ( self->video_codec->time_base.num == 0 ? 1 : self->video_codec->time_base.num );
1759 if ( mlt_properties_get( properties, "force_fps" ) )
1761 source_fps = mlt_properties_get_double( properties, "force_fps" );
1762 stream->time_base = av_d2q( source_fps, 1024 );
1763 mlt_properties_set_int( properties, "meta.media.frame_rate_num", stream->time_base.num );
1764 mlt_properties_set_int( properties, "meta.media.frame_rate_den", stream->time_base.den );
1768 // If the muxer reports a frame rate different than the codec
1769 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(42<<8)+0)
1770 double muxer_fps = av_q2d( stream->avg_frame_rate );
1771 if ( isnan( muxer_fps ) || muxer_fps == 0 )
1772 muxer_fps = av_q2d( stream->r_frame_rate );
1774 double muxer_fps = av_q2d( stream->r_frame_rate );
1776 // Choose the lesser - the wrong tends to be off by some multiple of 10
1777 source_fps = FFMIN( source_fps, muxer_fps );
1778 if ( source_fps >= 1.0 && ( source_fps < muxer_fps || isnan( muxer_fps ) ) )
1780 mlt_properties_set_int( properties, "meta.media.frame_rate_num", self->video_codec->time_base.den );
1781 mlt_properties_set_int( properties, "meta.media.frame_rate_den", self->video_codec->time_base.num == 0 ? 1 : self->video_codec->time_base.num );
1783 else if ( muxer_fps > 0 )
1785 AVRational frame_rate = stream->r_frame_rate;
1786 // With my samples when r_frame_rate != 1000 but avg_frame_rate is valid,
1787 // avg_frame_rate gives some approximate value that does not well match the media.
1788 // Also, on my sample where r_frame_rate = 1000, using avg_frame_rate directly
1789 // results in some very choppy output, but some value slightly different works
1791 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(42<<8)+0)
1792 if ( av_q2d( stream->r_frame_rate ) >= 1000 && av_q2d( stream->avg_frame_rate ) > 0 )
1793 frame_rate = av_d2q( av_q2d( stream->avg_frame_rate ), 1024 );
1795 mlt_properties_set_int( properties, "meta.media.frame_rate_num", frame_rate.num );
1796 mlt_properties_set_int( properties, "meta.media.frame_rate_den", frame_rate.den );
1800 source_fps = mlt_producer_get_fps( self->parent );
1801 AVRational frame_rate = av_d2q( source_fps, 255 );
1802 mlt_properties_set_int( properties, "meta.media.frame_rate_num", frame_rate.num );
1803 mlt_properties_set_int( properties, "meta.media.frame_rate_den", frame_rate.den );
1807 // source_fps is deprecated in favor of meta.media.frame_rate_num and .frame_rate_den
1808 if ( source_fps > 0 )
1809 mlt_properties_set_double( properties, "source_fps", source_fps );
1811 mlt_properties_set_double( properties, "source_fps", mlt_producer_get_fps( self->parent ) );
1813 // Set the YUV colorspace from override or detect
1814 self->colorspace = mlt_properties_get_int( properties, "force_colorspace" );
1815 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
1816 if ( ! self->colorspace )
1818 switch ( self->video_codec->colorspace )
1820 case AVCOL_SPC_SMPTE240M:
1821 self->colorspace = 240;
1823 case AVCOL_SPC_BT470BG:
1824 case AVCOL_SPC_SMPTE170M:
1825 self->colorspace = 601;
1827 case AVCOL_SPC_BT709:
1828 self->colorspace = 709;
1831 // This is a heuristic Charles Poynton suggests in "Digital Video and HDTV"
1832 self->colorspace = self->video_codec->width * self->video_codec->height > 750000 ? 709 : 601;
1837 // Let apps get chosen colorspace
1838 mlt_properties_set_int( properties, "meta.media.colorspace", self->colorspace );
1840 return self->video_codec && self->video_index > -1;
1843 /** Set up video handling.
1846 static void producer_set_up_video( producer_avformat self, mlt_frame frame )
1849 mlt_producer producer = self->parent;
1851 // Get the properties
1852 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
1854 // Fetch the video format context
1855 AVFormatContext *context = self->video_format;
1857 // Get the video_index
1858 int index = mlt_properties_get_int( properties, "video_index" );
1860 // Reopen the file if necessary
1861 if ( !context && index > -1 )
1863 producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
1864 mlt_properties_get( properties, "resource" ) );
1865 context = self->video_format;
1868 // Exception handling for video_index
1869 if ( context && index >= (int) context->nb_streams )
1871 // Get the last video stream
1872 for ( index = context->nb_streams - 1;
1873 index >= 0 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_VIDEO;
1875 mlt_properties_set_int( properties, "video_index", index );
1877 if ( context && index > -1 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_VIDEO )
1879 // Invalidate the video stream
1881 mlt_properties_set_int( properties, "video_index", index );
1884 // Update the video properties if the index changed
1885 if ( index != self->video_index )
1887 // Reset the video properties if the index changed
1888 self->video_index = index;
1889 if ( self->video_codec )
1892 avcodec_close( self->video_codec );
1895 self->video_codec = NULL;
1898 // Get the frame properties
1899 mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
1902 if ( context && index > -1 && video_codec_init( self, index, properties ) )
1904 // Set the frame properties
1905 double force_aspect_ratio = mlt_properties_get_double( properties, "force_aspect_ratio" );
1906 double aspect_ratio = ( force_aspect_ratio > 0.0 ) ?
1907 force_aspect_ratio : mlt_properties_get_double( properties, "aspect_ratio" );
1909 // Set the width and height
1910 mlt_properties_set_int( frame_properties, "width", self->video_codec->width );
1911 mlt_properties_set_int( frame_properties, "height", self->video_codec->height );
1912 // real_width and real_height are deprecated in favor of meta.media.width and .height
1913 mlt_properties_set_int( properties, "meta.media.width", self->video_codec->width );
1914 mlt_properties_set_int( properties, "meta.media.height", self->video_codec->height );
1915 mlt_properties_set_int( frame_properties, "real_width", self->video_codec->width );
1916 mlt_properties_set_int( frame_properties, "real_height", self->video_codec->height );
1917 mlt_properties_set_double( frame_properties, "aspect_ratio", aspect_ratio );
1918 mlt_properties_set_int( frame_properties, "colorspace", self->colorspace );
1920 // Workaround 1088 encodings missing cropping info.
1921 if ( self->video_codec->height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1923 mlt_properties_set_int( properties, "meta.media.height", 1080 );
1924 mlt_properties_set_int( frame_properties, "real_height", 1080 );
1927 // Add our image operation
1928 mlt_frame_push_service( frame, self );
1929 mlt_frame_push_get_image( frame, producer_get_image );
1933 // If something failed, use test card image
1934 mlt_properties_set_int( frame_properties, "test_image", 1 );
1938 static int seek_audio( producer_avformat self, mlt_position position, double timecode, int *ignore )
1942 // Seek if necessary
1943 if ( self->seekable && position != self->audio_expected )
1945 if ( position + 1 == self->audio_expected )
1947 // We're paused - silence required
1950 else if ( !self->seekable && position > self->audio_expected && ( position - self->audio_expected ) < 250 )
1952 // Fast forward - seeking is inefficient for small distances - just ignore following frames
1953 *ignore = position - self->audio_expected;
1955 else if ( position < self->audio_expected || position - self->audio_expected >= 12 )
1957 AVFormatContext *context = self->audio_format;
1958 int64_t timestamp = ( int64_t )( timecode * AV_TIME_BASE + 0.5 );
1959 if ( context->start_time != AV_NOPTS_VALUE )
1960 timestamp += context->start_time;
1961 if ( timestamp < 0 )
1964 // Set to the real timecode
1965 if ( av_seek_frame( context, -1, timestamp, AVSEEK_FLAG_BACKWARD ) != 0 )
1968 // Clear the usage in the audio buffer
1969 int i = MAX_AUDIO_STREAMS + 1;
1971 self->audio_used[i - 1] = 0;
1977 static int sample_bytes( AVCodecContext *context )
1979 #if LIBAVCODEC_VERSION_MAJOR > 52
1980 return av_get_bits_per_sample_fmt( context->sample_fmt ) / 8;
1982 return av_get_bits_per_sample_format( context->sample_fmt ) / 8;
1986 static int decode_audio( producer_avformat self, int *ignore, AVPacket pkt, int channels, int samples, double timecode, double fps )
1988 // Fetch the audio_format
1989 AVFormatContext *context = self->audio_format;
1991 // Get the current stream index
1992 int index = pkt.stream_index;
1994 // Get codec context
1995 AVCodecContext *codec_context = self->audio_codec[ index ];
1997 // Obtain the resample context if it exists (not always needed)
1998 ReSampleContext *resample = self->audio_resample[ index ];
2000 // Obtain the audio buffers
2001 uint8_t *audio_buffer = self->audio_buffer[ index ];
2002 uint8_t *decode_buffer = self->decode_buffer[ index ];
2004 int audio_used = self->audio_used[ index ];
2005 uint8_t *ptr = pkt.data;
2009 while ( ptr && ret >= 0 && len > 0 )
2011 int sizeof_sample = resample? sizeof( int16_t ) : sample_bytes( codec_context );
2012 int data_size = self->audio_buffer_size[ index ];
2015 #if (LIBAVCODEC_VERSION_INT >= ((52<<16)+(26<<8)+0))
2016 ret = avcodec_decode_audio3( codec_context, (int16_t*) decode_buffer, &data_size, &pkt );
2017 #elif (LIBAVCODEC_VERSION_INT >= ((51<<16)+(29<<8)+0))
2018 ret = avcodec_decode_audio2( codec_context, decode_buffer, &data_size, ptr, len );
2020 ret = avcodec_decode_audio( codec_context, decode_buffer, &data_size, ptr, len );
2024 mlt_log_warning( MLT_PRODUCER_SERVICE(self->parent), "audio decoding error %d\n", ret );
2028 pkt.size = len -= ret;
2029 pkt.data = ptr += ret;
2031 // If decoded successfully
2032 if ( data_size > 0 )
2034 // Figure out how many samples will be needed after resampling
2035 int convert_samples = data_size / codec_context->channels / sample_bytes( codec_context );
2036 int samples_needed = self->resample_factor * convert_samples;
2038 // Resize audio buffer to prevent overflow
2039 if ( ( audio_used + samples_needed ) * channels * sizeof_sample > self->audio_buffer_size[ index ] )
2041 self->audio_buffer_size[ index ] = ( audio_used + samples_needed * 2 ) * channels * sizeof_sample;
2042 audio_buffer = self->audio_buffer[ index ] = mlt_pool_realloc( audio_buffer, self->audio_buffer_size[ index ] );
2046 // Copy to audio buffer while resampling
2047 uint8_t *source = decode_buffer;
2048 uint8_t *dest = &audio_buffer[ audio_used * channels * sizeof_sample ];
2049 audio_used += audio_resample( resample, (short*) dest, (short*) source, convert_samples );
2053 // Straight copy to audio buffer
2054 memcpy( &audio_buffer[ audio_used * codec_context->channels * sizeof_sample ], decode_buffer, data_size );
2055 audio_used += convert_samples;
2059 while ( *ignore && audio_used > samples )
2062 audio_used -= samples;
2063 memmove( audio_buffer, &audio_buffer[ samples * (resample? channels : codec_context->channels) * sizeof_sample ],
2064 audio_used * sizeof_sample );
2069 // If we're behind, ignore this packet
2072 double current_pts = av_q2d( context->streams[ index ]->time_base ) * pkt.pts;
2073 int req_position = ( int )( timecode * fps + 0.5 );
2074 int int_position = ( int )( current_pts * fps + 0.5 );
2075 if ( context->start_time != AV_NOPTS_VALUE )
2076 int_position -= ( int )( fps * context->start_time / AV_TIME_BASE + 0.5 );
2078 if ( self->seekable && *ignore == 0 )
2080 if ( int_position < req_position )
2081 // We are behind, so skip some
2083 else if ( int_position > req_position + 2 )
2084 // We are ahead, so seek backwards some more
2085 seek_audio( self, req_position, timecode - 1.0, ignore );
2089 self->audio_used[ index ] = audio_used;
2094 /** Get the audio from a frame.
2096 static int producer_get_audio( mlt_frame frame, void **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
2099 producer_avformat self = mlt_frame_pop_audio( frame );
2101 pthread_mutex_lock( &self->audio_mutex );
2103 // Obtain the frame number of this frame
2104 mlt_position position = mlt_properties_get_position( MLT_FRAME_PROPERTIES( frame ), "avformat_position" );
2106 // Calculate the real time code
2107 double real_timecode = producer_time_of_frame( self->parent, position );
2109 // Get the producer fps
2110 double fps = mlt_producer_get_fps( self->parent );
2112 // Number of frames to ignore (for ffwd)
2115 // Flag for paused (silence)
2116 int paused = seek_audio( self, position, real_timecode, &ignore );
2118 // Fetch the audio_format
2119 AVFormatContext *context = self->audio_format;
2121 int sizeof_sample = sizeof( int16_t );
2123 // Determine the tracks to use
2124 int index = self->audio_index;
2125 int index_max = self->audio_index + 1;
2126 if ( self->audio_index == INT_MAX )
2129 index_max = context->nb_streams;
2130 *channels = self->total_channels;
2131 *samples = *samples * FFMAX( self->max_frequency, *frequency ) / *frequency;
2132 *frequency = FFMAX( self->max_frequency, *frequency );
2135 // Initialize the resamplers and buffers
2136 for ( ; index < index_max; index++ )
2138 // Get codec context
2139 AVCodecContext *codec_context = self->audio_codec[ index ];
2141 if ( codec_context && !self->audio_buffer[ index ] )
2143 // Check for resample and create if necessary
2144 if ( codec_context->channels <= 2 )
2146 // Determine by how much resampling will increase number of samples
2147 double resample_factor = self->audio_index == INT_MAX ? 1 : (double) *channels / codec_context->channels;
2148 resample_factor *= (double) *frequency / codec_context->sample_rate;
2149 if ( resample_factor > self->resample_factor )
2150 self->resample_factor = resample_factor;
2152 // Create the resampler
2153 #if (LIBAVCODEC_VERSION_INT >= ((52<<16)+(15<<8)+0))
2154 self->audio_resample[ index ] = av_audio_resample_init(
2155 self->audio_index == INT_MAX ? codec_context->channels : *channels,
2156 codec_context->channels, *frequency, codec_context->sample_rate,
2157 SAMPLE_FMT_S16, codec_context->sample_fmt, 16, 10, 0, 0.8 );
2159 self->audio_resample[ index ] = audio_resample_init(
2160 self->audio_index == INT_MAX ? codec_context->channels : *channels,
2161 codec_context->channels, *frequency, codec_context->sample_rate );
2166 codec_context->request_channels = self->audio_index == INT_MAX ? codec_context->channels : *channels;
2167 sizeof_sample = sample_bytes( codec_context );
2170 // Check for audio buffer and create if necessary
2171 self->audio_buffer_size[ index ] = AVCODEC_MAX_AUDIO_FRAME_SIZE * sizeof_sample;
2172 self->audio_buffer[ index ] = mlt_pool_alloc( self->audio_buffer_size[ index ] );
2174 // Check for decoder buffer and create if necessary
2175 self->decode_buffer[ index ] = av_malloc( self->audio_buffer_size[ index ] );
2179 // Get the audio if required
2186 av_init_packet( &pkt );
2188 // If not resampling, give consumer more than requested.
2189 // It requested number samples based on requested frame rate.
2190 // Do not clean this up with a samples *= ...!
2191 if ( self->audio_index != INT_MAX && ! self->audio_resample[ self->audio_index ] )
2192 *samples = *samples * self->audio_codec[ self->audio_index ]->sample_rate / *frequency;
2194 while ( ret >= 0 && !got_audio )
2196 // Check if the buffer already contains the samples required
2197 if ( self->audio_index != INT_MAX && self->audio_used[ self->audio_index ] >= *samples && ignore == 0 )
2204 pthread_mutex_lock( &self->packets_mutex );
2205 if ( mlt_deque_count( self->apackets ) )
2207 AVPacket *tmp = (AVPacket*) mlt_deque_pop_front( self->apackets );
2213 ret = av_read_frame( context, &pkt );
2214 if ( ret >= 0 && !self->seekable && pkt.stream_index == self->video_index )
2216 if ( !av_dup_packet( &pkt ) )
2218 AVPacket *tmp = malloc( sizeof(AVPacket) );
2220 mlt_deque_push_back( self->vpackets, tmp );
2224 pthread_mutex_unlock( &self->packets_mutex );
2226 // We only deal with audio from the selected audio index
2227 index = pkt.stream_index;
2228 if ( ret >= 0 && pkt.data && pkt.size > 0 && ( index == self->audio_index ||
2229 ( self->audio_index == INT_MAX && context->streams[ index ]->codec->codec_type == CODEC_TYPE_AUDIO ) ) )
2231 int channels2 = ( self->audio_index == INT_MAX || !self->audio_resample[index] ) ?
2232 self->audio_codec[index]->channels : *channels;
2233 ret = decode_audio( self, &ignore, pkt, channels2, *samples, real_timecode, fps );
2236 if ( self->seekable || index != self->video_index )
2237 av_free_packet( &pkt );
2239 if ( self->audio_index == INT_MAX && ret >= 0 )
2241 // Determine if there is enough audio for all streams
2243 for ( index = 0; index < context->nb_streams; index++ )
2245 if ( self->audio_codec[ index ] && self->audio_used[ index ] < *samples )
2251 // Set some additional return values
2252 *format = mlt_audio_s16;
2253 if ( self->audio_index != INT_MAX && !self->audio_resample[ self->audio_index ] )
2255 index = self->audio_index;
2256 *channels = self->audio_codec[ index ]->channels;
2257 *frequency = self->audio_codec[ index ]->sample_rate;
2258 *format = self->audio_codec[ index ]->sample_fmt == SAMPLE_FMT_S32 ? mlt_audio_s32le
2259 : self->audio_codec[ index ]->sample_fmt == SAMPLE_FMT_FLT ? mlt_audio_f32le
2261 sizeof_sample = sample_bytes( self->audio_codec[ index ] );
2263 else if ( self->audio_index == INT_MAX )
2265 // This only works if all audio tracks have the same sample format.
2266 for ( index = 0; index < index_max; index++ )
2267 if ( self->audio_codec[ index ] && !self->audio_resample[ index ] )
2269 *format = self->audio_codec[ index ]->sample_fmt == SAMPLE_FMT_S32 ? mlt_audio_s32le
2270 : self->audio_codec[ index ]->sample_fmt == SAMPLE_FMT_FLT ? mlt_audio_f32le
2272 sizeof_sample = sample_bytes( self->audio_codec[ index ] );
2277 // Allocate and set the frame's audio buffer
2278 int size = mlt_audio_format_size( *format, *samples, *channels );
2279 *buffer = mlt_pool_alloc( size );
2280 mlt_frame_set_audio( frame, *buffer, *format, size, mlt_pool_release );
2282 // Interleave tracks if audio_index=all
2283 if ( self->audio_index == INT_MAX )
2285 uint8_t *dest = *buffer;
2287 for ( i = 0; i < *samples; i++ )
2289 for ( index = 0; index < index_max; index++ )
2290 if ( self->audio_codec[ index ] )
2292 int current_channels = self->audio_codec[ index ]->channels;
2293 uint8_t *src = self->audio_buffer[ index ] + i * current_channels * sizeof_sample;
2294 memcpy( dest, src, current_channels * sizeof_sample );
2295 dest += current_channels * sizeof_sample;
2298 for ( index = 0; index < index_max; index++ )
2299 if ( self->audio_codec[ index ] && self->audio_used[ index ] >= *samples )
2301 int current_channels = self->audio_codec[ index ]->channels;
2302 uint8_t *src = self->audio_buffer[ index ] + *samples * current_channels * sizeof_sample;
2303 self->audio_used[index] -= *samples;
2304 memmove( self->audio_buffer[ index ], src, self->audio_used[ index ] * current_channels * sizeof_sample );
2307 // Copy a single track to the output buffer
2310 index = self->audio_index;
2312 // Now handle the audio if we have enough
2313 if ( self->audio_used[ index ] > 0 )
2315 uint8_t *src = self->audio_buffer[ index ];
2316 // copy samples from audio_buffer
2317 size = self->audio_used[ index ] < *samples ? self->audio_used[ index ] : *samples;
2318 memcpy( *buffer, src, size * *channels * sizeof_sample );
2319 // supply the remaining requested samples as silence
2320 if ( *samples > self->audio_used[ index ] )
2321 memset( *buffer + size * *channels * sizeof_sample, 0, ( *samples - self->audio_used[ index ] ) * *channels * sizeof_sample );
2322 // reposition the samples within audio_buffer
2323 self->audio_used[ index ] -= size;
2324 memmove( src, src + size * *channels * sizeof_sample, self->audio_used[ index ] * *channels * sizeof_sample );
2328 // Otherwise fill with silence
2329 memset( *buffer, 0, *samples * *channels * sizeof_sample );
2335 // Get silence and don't touch the context
2336 mlt_frame_get_audio( frame, buffer, format, frequency, channels, samples );
2339 // Regardless of speed (other than paused), we expect to get the next frame
2341 self->audio_expected = position + 1;
2343 pthread_mutex_unlock( &self->audio_mutex );
2348 /** Initialize the audio codec context.
2351 static int audio_codec_init( producer_avformat self, int index, mlt_properties properties )
2353 // Initialise the codec if necessary
2354 if ( !self->audio_codec[ index ] )
2356 // Get codec context
2357 AVCodecContext *codec_context = self->audio_format->streams[index]->codec;
2360 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
2362 // If we don't have a codec and we can't initialise it, we can't do much more...
2364 if ( codec && avcodec_open( codec_context, codec ) >= 0 )
2366 // Now store the codec with its destructor
2367 if ( self->audio_codec[ index ] )
2368 avcodec_close( self->audio_codec[ index ] );
2369 self->audio_codec[ index ] = codec_context;
2373 // Remember that we can't use self later
2374 self->audio_index = -1;
2378 // Process properties as AVOptions
2379 apply_properties( codec_context, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
2380 #if LIBAVCODEC_VERSION_MAJOR > 52
2381 if ( codec && codec->priv_class && codec_context->priv_data )
2382 apply_properties( codec_context->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
2385 return self->audio_codec[ index ] && self->audio_index > -1;
2388 /** Set up audio handling.
2391 static void producer_set_up_audio( producer_avformat self, mlt_frame frame )
2394 mlt_producer producer = self->parent;
2396 // Get the properties
2397 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
2399 // Fetch the audio format context
2400 AVFormatContext *context = self->audio_format;
2402 mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
2404 // Get the audio_index
2405 int index = mlt_properties_get_int( properties, "audio_index" );
2407 // Handle all audio tracks
2408 if ( self->audio_index > -1 &&
2409 mlt_properties_get( properties, "audio_index" ) &&
2410 !strcmp( mlt_properties_get( properties, "audio_index" ), "all" ) )
2413 // Reopen the file if necessary
2414 if ( !context && self->audio_index > -1 && index > -1 )
2416 producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
2417 mlt_properties_get( properties, "resource" ) );
2418 context = self->audio_format;
2421 // Exception handling for audio_index
2422 if ( context && index >= (int) context->nb_streams && index < INT_MAX )
2424 for ( index = context->nb_streams - 1;
2425 index >= 0 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_AUDIO;
2427 mlt_properties_set_int( properties, "audio_index", index );
2429 if ( context && index > -1 && index < INT_MAX &&
2430 context->streams[ index ]->codec->codec_type != CODEC_TYPE_AUDIO )
2432 index = self->audio_index;
2433 mlt_properties_set_int( properties, "audio_index", index );
2436 // Update the audio properties if the index changed
2437 if ( context && index > -1 && index != self->audio_index )
2439 if ( self->audio_codec[ self->audio_index ] )
2442 avcodec_close( self->audio_codec[ self->audio_index ] );
2445 self->audio_codec[ self->audio_index ] = NULL;
2447 if ( self->audio_index != -1 )
2448 self->audio_index = index;
2453 if ( context && index == INT_MAX )
2455 mlt_properties_set_int( frame_properties, "audio_frequency", self->max_frequency );
2456 mlt_properties_set_int( frame_properties, "audio_channels", self->total_channels );
2457 for ( index = 0; index < context->nb_streams; index++ )
2459 if ( context->streams[ index ]->codec->codec_type == CODEC_TYPE_AUDIO )
2460 audio_codec_init( self, index, properties );
2463 else if ( context && index > -1 && audio_codec_init( self, index, properties ) )
2465 // Set the frame properties
2466 if ( index < INT_MAX )
2468 mlt_properties_set_int( frame_properties, "frequency", self->audio_codec[ index ]->sample_rate );
2469 mlt_properties_set_int( frame_properties, "channels", self->audio_codec[ index ]->channels );
2472 if ( context && index > -1 )
2474 // Add our audio operation
2475 mlt_frame_push_audio( frame, self );
2476 mlt_frame_push_audio( frame, producer_get_audio );
2480 /** Our get frame implementation.
2483 static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
2485 // Access the private data
2486 mlt_service service = MLT_PRODUCER_SERVICE( producer );
2487 mlt_cache_item cache_item = mlt_service_cache_get( service, "producer_avformat" );
2488 producer_avformat self = mlt_cache_item_data( cache_item, NULL );
2493 self = calloc( 1, sizeof( struct producer_avformat_s ) );
2494 producer->child = self;
2495 self->parent = producer;
2496 mlt_service_cache_put( service, "producer_avformat", self, 0, (mlt_destructor) producer_avformat_close );
2497 cache_item = mlt_service_cache_get( service, "producer_avformat" );
2500 // Create an empty frame
2501 *frame = mlt_frame_init( service);
2505 mlt_properties_set_data( MLT_FRAME_PROPERTIES(*frame), "avformat_cache", cache_item, 0, (mlt_destructor) mlt_cache_item_close, NULL );
2509 mlt_cache_item_close( cache_item );
2513 // Update timecode on the frame we're creating
2514 mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
2516 // Set the position of this producer
2517 mlt_properties_set_position( MLT_FRAME_PROPERTIES( *frame ), "avformat_position", mlt_producer_frame( producer ) );
2520 producer_set_up_video( self, *frame );
2523 producer_set_up_audio( self, *frame );
2525 // Calculate the next timecode
2526 mlt_producer_prepare_next( producer );
2531 static void producer_avformat_close( producer_avformat self )
2533 mlt_log_debug( NULL, "producer_avformat_close\n" );
2535 // Cleanup av contexts
2536 av_free( self->av_frame );
2539 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
2541 if ( self->audio_resample[i] )
2542 audio_resample_close( self->audio_resample[i] );
2543 mlt_pool_release( self->audio_buffer[i] );
2544 av_free( self->decode_buffer[i] );
2545 if ( self->audio_codec[i] )
2546 avcodec_close( self->audio_codec[i] );
2548 if ( self->video_codec )
2549 avcodec_close( self->video_codec );
2551 if ( self->dummy_context )
2552 av_close_input_file( self->dummy_context );
2553 if ( self->seekable && self->audio_format )
2554 av_close_input_file( self->audio_format );
2555 if ( self->video_format )
2556 av_close_input_file( self->video_format );
2559 vdpau_producer_close( self );
2561 if ( self->image_cache )
2562 mlt_cache_close( self->image_cache );
2564 // Cleanup the mutexes
2565 pthread_mutex_destroy( &self->audio_mutex );
2566 pthread_mutex_destroy( &self->video_mutex );
2567 pthread_mutex_destroy( &self->packets_mutex );
2569 // Cleanup the packet queues
2571 while ( ( pkt = mlt_deque_pop_back( self->apackets ) ) )
2573 av_free_packet( pkt );
2576 while ( ( pkt = mlt_deque_pop_back( self->vpackets ) ) )
2578 av_free_packet( pkt );
2585 static void producer_close( mlt_producer parent )
2587 // Remove this instance from the cache
2588 mlt_service_cache_purge( MLT_PRODUCER_SERVICE(parent) );
2591 parent->close = NULL;
2592 mlt_producer_close( parent );