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 >= 53
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 >= 53
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;
93 int64_t last_position;
95 int64_t current_position;
96 mlt_position nonseek_position;
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, int take_lock );
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, 1 ) != 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 >= 53
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 >= 53
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 if ( !strstr( URL, "&frame_rate" ) )
575 params->time_base = (AVRational){ profile->frame_rate_den, profile->frame_rate_num };
576 params->channels = 2;
577 params->sample_rate = 48000;
580 url = strchr( url, '?' );
584 char *name = strdup( ++url );
585 char *value = strchr( name, '=' );
587 // Also accept : as delimiter for backwards compatibility.
588 value = strchr( name, ':' );
593 char *t = strchr( value, '&' );
596 if ( !strcmp( name, "frame_rate" ) )
597 params->time_base.den = atoi( value );
598 else if ( !strcmp( name, "frame_rate_base" ) )
599 params->time_base.num = atoi( value );
600 else if ( !strcmp( name, "sample_rate" ) )
601 params->sample_rate = atoi( value );
602 else if ( !strcmp( name, "channel" ) )
603 params->channel = atoi( value );
604 else if ( !strcmp( name, "channels" ) )
605 params->channels = atoi( value );
606 #if (LIBAVUTIL_VERSION_INT > ((50<<16)+(7<<8)+0))
607 else if ( !strcmp( name, "pix_fmt" ) )
608 params->pix_fmt = av_get_pix_fmt( value );
610 else if ( !strcmp( name, "width" ) )
611 params->width = atoi( value );
612 else if ( !strcmp( name, "height" ) )
613 params->height = atoi( value );
614 else if ( !strcmp( name, "standard" ) )
615 params->standard = strdup( value );
618 url = strchr( url, '&' );
622 result = strdup( result );
627 static int get_basic_info( producer_avformat self, mlt_profile profile, const char *filename )
631 // Get the properties
632 mlt_properties properties = MLT_PRODUCER_PROPERTIES( self->parent );
634 AVFormatContext *format = self->video_format;
636 // We will treat everything with the producer fps.
637 // TODO: make this more flexible.
638 double fps = mlt_profile_fps( profile );
641 if ( !mlt_properties_get_int( properties, "_length_computed" ) )
643 // The _length_computed flag prevents overwriting explicity set length/out/eof properties
644 // when producer_open is called after initial call when restoring or reseting the producer.
645 if ( format->duration != AV_NOPTS_VALUE )
647 // This isn't going to be accurate for all formats
648 mlt_position frames = ( mlt_position )( ( ( double )format->duration / ( double )AV_TIME_BASE ) * fps );
649 mlt_properties_set_position( properties, "out", frames - 1 );
650 mlt_properties_set_position( properties, "length", frames );
651 mlt_properties_set_int( properties, "_length_computed", 1 );
655 // Set live sources to run forever
656 mlt_properties_set_position( properties, "length", INT_MAX );
657 mlt_properties_set_position( properties, "out", INT_MAX - 1 );
658 mlt_properties_set( properties, "eof", "loop" );
659 mlt_properties_set_int( properties, "_length_computed", 1 );
663 // Check if we're seekable
664 // avdevices are typically AVFMT_NOFILE and not seekable
665 self->seekable = !format->iformat || !( format->iformat->flags & AVFMT_NOFILE );
668 // protocols can indicate if they support seeking
669 #if LIBAVFORMAT_VERSION_MAJOR >= 53
670 self->seekable = format->pb->seekable;
672 URLContext *uc = url_fileno( format->pb );
674 self->seekable = !uc->is_streamed;
677 if ( self->seekable )
679 // Do a more rigourous test of seekable on a disposable context
680 self->seekable = av_seek_frame( format, -1, format->start_time, AVSEEK_FLAG_BACKWARD ) >= 0;
681 mlt_properties_set_int( properties, "seekable", self->seekable );
682 self->dummy_context = format;
683 av_open_input_file( &self->video_format, filename, NULL, 0, NULL );
684 format = self->video_format;
685 av_find_stream_info( format );
688 // Fetch the width, height and aspect ratio
689 if ( self->video_index != -1 )
691 AVCodecContext *codec_context = format->streams[ self->video_index ]->codec;
692 mlt_properties_set_int( properties, "width", codec_context->width );
693 mlt_properties_set_int( properties, "height", codec_context->height );
695 if ( codec_context->codec_id == CODEC_ID_DVVIDEO )
697 // Fetch the first frame of DV so we can read it directly
702 ret = av_read_frame( format, &pkt );
703 if ( ret >= 0 && pkt.stream_index == self->video_index && pkt.size > 0 )
705 get_aspect_ratio( properties, format->streams[ self->video_index ], codec_context, &pkt );
712 get_aspect_ratio( properties, format->streams[ self->video_index ], codec_context, NULL );
716 // Verify that we can convert this to YUV 4:2:2
717 // TODO: we can now also return RGB and RGBA and quite possibly more in the future.
718 struct SwsContext *context = sws_getContext( codec_context->width, codec_context->height, codec_context->pix_fmt,
719 codec_context->width, codec_context->height, PIX_FMT_YUYV422, SWS_BILINEAR, NULL, NULL, NULL);
721 sws_freeContext( context );
732 static int producer_open( producer_avformat self, mlt_profile profile, const char *URL, int take_lock )
734 // Return an error code (0 == no error)
736 mlt_properties properties = MLT_PRODUCER_PROPERTIES( self->parent );
741 pthread_mutex_init( &self->audio_mutex, NULL );
742 pthread_mutex_init( &self->video_mutex, NULL );
743 pthread_mutex_init( &self->packets_mutex, NULL );
744 pthread_mutex_lock( &self->audio_mutex );
745 pthread_mutex_lock( &self->video_mutex );
747 mlt_events_block( properties, self->parent );
750 AVInputFormat *format = NULL;
751 AVFormatParameters params;
752 memset( ¶ms, 0, sizeof(params) );
753 char *filename = parse_url( profile, URL, &format, ¶ms );
755 // Now attempt to open the file or device with filename
756 error = av_open_input_file( &self->video_format, filename, format, 0, ¶ms ) < 0;
758 // If the URL is a network stream URL, then we probably need to open with full URL
759 error = av_open_input_file( &self->video_format, URL, format, 0, ¶ms ) < 0;
761 // Set MLT properties onto video AVFormatContext
762 if ( !error && self->video_format )
764 apply_properties( self->video_format, properties, AV_OPT_FLAG_DECODING_PARAM );
765 #if LIBAVFORMAT_VERSION_MAJOR >= 53
766 if ( self->video_format->iformat && self->video_format->iformat->priv_class && self->video_format->priv_data )
767 apply_properties( self->video_format->priv_data, properties, AV_OPT_FLAG_DECODING_PARAM );
771 // Cleanup AVFormatParameters
772 if ( params.standard )
773 free( (void*) params.standard );
775 // If successful, then try to get additional info
776 if ( !error && self->video_format )
778 // Get the stream info
779 error = av_find_stream_info( self->video_format ) < 0;
781 // Continue if no error
782 if ( !error && self->video_format )
784 // Find default audio and video streams
785 find_default_streams( self );
786 error = get_basic_info( self, profile, filename );
788 // Initialize position info
789 self->first_pts = -1;
790 self->last_position = POSITION_INITIAL;
792 if ( !self->audio_format )
794 // We're going to cheat here - for seekable A/V files, we will have separate contexts
795 // to support independent seeking of audio from video.
796 // TODO: Is this really necessary?
797 if ( self->audio_index != -1 && self->video_index != -1 )
799 if ( self->seekable )
801 // And open again for our audio context
802 av_open_input_file( &self->audio_format, filename, NULL, 0, NULL );
803 apply_properties( self->audio_format, properties, AV_OPT_FLAG_DECODING_PARAM );
804 #if LIBAVFORMAT_VERSION_MAJOR >= 53
805 if ( self->audio_format->iformat && self->audio_format->iformat->priv_class && self->audio_format->priv_data )
806 apply_properties( self->audio_format->priv_data, properties, AV_OPT_FLAG_DECODING_PARAM );
808 av_find_stream_info( self->audio_format );
812 self->audio_format = self->video_format;
815 else if ( self->audio_index != -1 )
817 // We only have an audio context
818 self->audio_format = self->video_format;
819 self->video_format = NULL;
821 else if ( self->video_index == -1 )
823 // Something has gone wrong
826 if ( self->audio_format && !self->audio_streams )
827 get_audio_streams_info( self );
835 self->apackets = mlt_deque_init();
836 self->vpackets = mlt_deque_init();
839 if ( self->dummy_context )
842 av_close_input_file( self->dummy_context );
844 self->dummy_context = NULL;
847 // Unlock the service
850 pthread_mutex_unlock( &self->audio_mutex );
851 pthread_mutex_unlock( &self->video_mutex );
853 mlt_events_unblock( properties, self->parent );
858 static void reopen_video( producer_avformat self, mlt_producer producer )
860 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
861 mlt_service_lock( MLT_PRODUCER_SERVICE( producer ) );
862 pthread_mutex_lock( &self->audio_mutex );
865 if ( self->video_codec )
866 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;
876 int audio_index = self->audio_index;
877 int video_index = self->video_index;
879 producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
880 mlt_properties_get( properties, "resource" ), 0 );
882 self->audio_index = audio_index;
883 if ( self->video_format && video_index > -1 )
885 self->video_index = video_index;
886 video_codec_init( self, video_index, properties );
889 pthread_mutex_unlock( &self->audio_mutex );
890 mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
893 static int seek_video( producer_avformat self, mlt_position position,
894 int64_t req_position, int must_decode, int use_new_seek, int *ignore )
896 mlt_producer producer = self->parent;
899 if ( self->seekable && ( position != self->video_expected || self->last_position < 0 ) )
901 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
903 // Fetch the video format context
904 AVFormatContext *context = self->video_format;
906 // Get the video stream
907 AVStream *stream = context->streams[ self->video_index ];
910 AVCodecContext *codec_context = stream->codec;
912 // We may want to use the source fps if available
913 double source_fps = mlt_properties_get_double( properties, "meta.media.frame_rate_num" ) /
914 mlt_properties_get_double( properties, "meta.media.frame_rate_den" );
916 if ( self->av_frame && position + 1 == self->video_expected )
918 // We're paused - use last image
921 else if ( !self->seekable && position > self->video_expected && ( position - self->video_expected ) < 250 )
923 // Fast forward - seeking is inefficient for small distances - just ignore following frames
924 *ignore = ( int )( ( position - self->video_expected ) / mlt_producer_get_fps( producer ) * source_fps );
925 codec_context->skip_loop_filter = AVDISCARD_NONREF;
927 else if ( self->seekable && ( position < self->video_expected || position - self->video_expected >= 12 || self->last_position < 0 ) )
929 if ( use_new_seek && self->last_position == POSITION_INITIAL )
931 // find first key frame
936 while ( ret >= 0 && toscan-- > 0 )
938 ret = av_read_frame( context, &pkt );
939 if ( ret >= 0 && ( pkt.flags & PKT_FLAG_KEY ) && pkt.stream_index == self->video_index )
941 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "first_pts %"PRId64" dts %"PRId64" pts_dts_delta %d\n", pkt.pts, pkt.dts, (int)(pkt.pts - pkt.dts) );
942 self->first_pts = pkt.pts;
945 av_free_packet( &pkt );
948 av_seek_frame( context, -1, 0, AVSEEK_FLAG_BACKWARD );
951 // Calculate the timestamp for the requested frame
955 timestamp = ( req_position - 0.1 / source_fps ) /
956 ( av_q2d( stream->time_base ) * source_fps );
957 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "pos %"PRId64" pts %"PRId64"\n", req_position, timestamp );
958 if ( self->first_pts > 0 )
959 timestamp += self->first_pts;
960 else if ( context->start_time != AV_NOPTS_VALUE )
961 timestamp += context->start_time;
965 timestamp = ( int64_t )( ( double )req_position / source_fps * AV_TIME_BASE + 0.5 );
966 if ( context->start_time != AV_NOPTS_VALUE )
967 timestamp += context->start_time;
970 timestamp -= AV_TIME_BASE;
973 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "seeking timestamp %"PRId64" position %d expected %d last_pos %"PRId64"\n",
974 timestamp, position, self->video_expected, self->last_position );
976 // Seek to the timestamp
979 codec_context->skip_loop_filter = AVDISCARD_NONREF;
980 av_seek_frame( context, self->video_index, timestamp, AVSEEK_FLAG_BACKWARD );
982 else if ( req_position > 0 || self->last_position <= 0 )
984 av_seek_frame( context, -1, timestamp, AVSEEK_FLAG_BACKWARD );
988 // Re-open video stream when rewinding to beginning from somewhere else.
989 // This is rather ugly, and I prefer not to do it this way, but ffmpeg is
990 // not reliably seeking to the first frame across formats.
991 reopen_video( self, producer );
994 // Remove the cached info relating to the previous position
995 self->current_position = POSITION_INVALID;
996 self->last_position = POSITION_INVALID;
997 av_freep( &self->av_frame );
1001 // flush any pictures still in decode buffer
1002 avcodec_flush_buffers( codec_context );
1009 /** Convert a frame position to a time code.
1012 static double producer_time_of_frame( mlt_producer producer, mlt_position position )
1014 return ( double )position / mlt_producer_get_fps( producer );
1017 // Collect information about all audio streams
1019 static void get_audio_streams_info( producer_avformat self )
1021 // Fetch the audio format context
1022 AVFormatContext *context = self->audio_format;
1026 i < context->nb_streams;
1029 if ( context->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO )
1031 AVCodecContext *codec_context = context->streams[i]->codec;
1032 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
1034 // If we don't have a codec and we can't initialise it, we can't do much more...
1036 if ( codec && avcodec_open( codec_context, codec ) >= 0 )
1038 self->audio_streams++;
1039 self->audio_max_stream = i;
1040 self->total_channels += codec_context->channels;
1041 if ( codec_context->channels > self->max_channel )
1042 self->max_channel = codec_context->channels;
1043 if ( codec_context->sample_rate > self->max_frequency )
1044 self->max_frequency = codec_context->sample_rate;
1045 avcodec_close( codec_context );
1050 mlt_log_verbose( NULL, "[producer avformat] audio: total_streams %d max_stream %d total_channels %d max_channels %d\n",
1051 self->audio_streams, self->audio_max_stream, self->total_channels, self->max_channel );
1053 // Other audio-specific initializations
1054 self->resample_factor = 1.0;
1057 static void set_luma_transfer( struct SwsContext *context, int colorspace, int use_full_range )
1059 #if defined(SWSCALE) && (LIBSWSCALE_VERSION_INT >= ((0<<16)+(7<<8)+2))
1061 const int *new_coefficients;
1063 int brightness, contrast, saturation;
1065 if ( sws_getColorspaceDetails( context, &coefficients, &full_range, &coefficients, &full_range,
1066 &brightness, &contrast, &saturation ) != -1 )
1068 // Don't change these from defaults unless explicitly told to.
1069 if ( use_full_range >= 0 )
1070 full_range = use_full_range;
1071 switch ( colorspace )
1077 new_coefficients = sws_getCoefficients( SWS_CS_ITU601 );
1080 new_coefficients = sws_getCoefficients( SWS_CS_SMPTE240M );
1083 new_coefficients = sws_getCoefficients( SWS_CS_ITU709 );
1086 new_coefficients = coefficients;
1089 sws_setColorspaceDetails( context, new_coefficients, full_range, new_coefficients, full_range,
1090 brightness, contrast, saturation );
1095 static inline void convert_image( AVFrame *frame, uint8_t *buffer, int pix_fmt,
1096 mlt_image_format *format, int width, int height, int colorspace )
1099 int full_range = -1;
1100 int flags = SWS_BILINEAR | SWS_ACCURATE_RND;
1103 flags |= SWS_CPU_CAPS_MMX;
1106 flags |= SWS_CPU_CAPS_MMX2;
1109 if ( pix_fmt == PIX_FMT_RGB32 )
1111 *format = mlt_image_rgb24a;
1112 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1113 width, height, PIX_FMT_RGBA, flags, NULL, NULL, NULL);
1115 avpicture_fill( &output, buffer, PIX_FMT_RGBA, width, height );
1116 set_luma_transfer( context, colorspace, full_range );
1117 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1118 output.data, output.linesize);
1119 sws_freeContext( context );
1121 else if ( *format == mlt_image_yuv420p )
1123 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1124 width, height, PIX_FMT_YUV420P, flags, NULL, NULL, NULL);
1126 output.data[0] = buffer;
1127 output.data[1] = buffer + width * height;
1128 output.data[2] = buffer + ( 5 * width * height ) / 4;
1129 output.linesize[0] = width;
1130 output.linesize[1] = width >> 1;
1131 output.linesize[2] = width >> 1;
1132 set_luma_transfer( context, colorspace, full_range );
1133 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1134 output.data, output.linesize);
1135 sws_freeContext( context );
1137 else if ( *format == mlt_image_rgb24 )
1139 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1140 width, height, PIX_FMT_RGB24, flags | SWS_FULL_CHR_H_INT, NULL, NULL, NULL);
1142 avpicture_fill( &output, buffer, PIX_FMT_RGB24, width, height );
1143 set_luma_transfer( context, colorspace, full_range );
1144 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1145 output.data, output.linesize);
1146 sws_freeContext( context );
1148 else if ( *format == mlt_image_rgb24a || *format == mlt_image_opengl )
1150 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1151 width, height, PIX_FMT_RGBA, flags | SWS_FULL_CHR_H_INT, NULL, NULL, NULL);
1153 avpicture_fill( &output, buffer, PIX_FMT_RGBA, width, height );
1154 set_luma_transfer( context, colorspace, full_range );
1155 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1156 output.data, output.linesize);
1157 sws_freeContext( context );
1161 struct SwsContext *context = sws_getContext( width, height, pix_fmt,
1162 width, height, PIX_FMT_YUYV422, flags | SWS_FULL_CHR_H_INP, NULL, NULL, NULL);
1164 avpicture_fill( &output, buffer, PIX_FMT_YUYV422, width, height );
1165 set_luma_transfer( context, colorspace, full_range );
1166 sws_scale( context, (const uint8_t* const*) frame->data, frame->linesize, 0, height,
1167 output.data, output.linesize);
1168 sws_freeContext( context );
1171 if ( *format == mlt_image_yuv420p )
1174 pict.data[0] = buffer;
1175 pict.data[1] = buffer + width * height;
1176 pict.data[2] = buffer + ( 5 * width * height ) / 4;
1177 pict.linesize[0] = width;
1178 pict.linesize[1] = width >> 1;
1179 pict.linesize[2] = width >> 1;
1180 img_convert( &pict, PIX_FMT_YUV420P, (AVPicture *)frame, pix_fmt, width, height );
1182 else if ( *format == mlt_image_rgb24 )
1185 avpicture_fill( &output, buffer, PIX_FMT_RGB24, width, height );
1186 img_convert( &output, PIX_FMT_RGB24, (AVPicture *)frame, pix_fmt, width, height );
1188 else if ( format == mlt_image_rgb24a || format == mlt_image_opengl )
1191 avpicture_fill( &output, buffer, PIX_FMT_RGB32, width, height );
1192 img_convert( &output, PIX_FMT_RGB32, (AVPicture *)frame, pix_fmt, width, height );
1197 avpicture_fill( &output, buffer, PIX_FMT_YUYV422, width, height );
1198 img_convert( &output, PIX_FMT_YUYV422, (AVPicture *)frame, pix_fmt, width, height );
1203 /** Allocate the image buffer and set it on the frame.
1206 static int allocate_buffer( mlt_frame frame, AVCodecContext *codec_context, uint8_t **buffer, mlt_image_format *format, int *width, int *height )
1210 if ( codec_context->width == 0 || codec_context->height == 0 )
1213 *width = codec_context->width;
1214 *height = codec_context->height;
1216 if ( codec_context->pix_fmt == PIX_FMT_RGB32 )
1217 size = *width * ( *height + 1 ) * 4;
1219 size = mlt_image_format_size( *format, *width, *height, NULL );
1221 // Construct the output image
1222 *buffer = mlt_pool_alloc( size );
1224 mlt_frame_set_image( frame, *buffer, size, mlt_pool_release );
1231 /** Get an image from a frame.
1234 static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
1237 producer_avformat self = mlt_frame_pop_service( frame );
1238 mlt_producer producer = self->parent;
1240 // Get the properties from the frame
1241 mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
1243 // Obtain the frame number of this frame
1244 mlt_position position = mlt_properties_get_position( frame_properties, "avformat_position" );
1246 // Get the producer properties
1247 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
1249 pthread_mutex_lock( &self->video_mutex );
1251 // Fetch the video format context
1252 AVFormatContext *context = self->video_format;
1254 // Get the video stream
1255 AVStream *stream = context->streams[ self->video_index ];
1257 // Get codec context
1258 AVCodecContext *codec_context = stream->codec;
1260 // Get the image cache
1261 if ( ! self->image_cache && ! mlt_properties_get_int( properties, "noimagecache" ) )
1262 self->image_cache = mlt_cache_init();
1263 if ( self->image_cache )
1265 mlt_cache_item item = mlt_cache_get( self->image_cache, (void*) position );
1266 uint8_t *original = mlt_cache_item_data( item, (int*) format );
1269 // Set the resolution
1270 *width = codec_context->width;
1271 *height = codec_context->height;
1273 // Workaround 1088 encodings missing cropping info.
1274 if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1278 int size = mlt_image_format_size( *format, *width, *height, NULL );
1281 *buffer = mlt_pool_alloc( size );
1282 mlt_frame_set_image( frame, *buffer, size, mlt_pool_release );
1283 memcpy( *buffer, original, size );
1284 mlt_cache_item_close( item );
1289 mlt_properties_set_data( frame_properties, "avformat.image_cache", item, 0, ( mlt_destructor )mlt_cache_item_close, NULL );
1290 mlt_frame_set_image( frame, *buffer, size, NULL );
1292 self->got_picture = 1;
1294 goto exit_get_image;
1303 // Special case ffwd handling
1306 // We may want to use the source fps if available
1307 double source_fps = mlt_properties_get_double( properties, "meta.media.frame_rate_num" ) /
1308 mlt_properties_get_double( properties, "meta.media.frame_rate_den" );
1310 // This is the physical frame position in the source
1311 int64_t req_position = ( int64_t )( position / mlt_producer_get_fps( producer ) * source_fps + 0.5 );
1313 // Determines if we have to decode all frames in a sequence
1314 // Temporary hack to improve intra frame only
1315 int must_decode = !( codec_context->codec && codec_context->codec->name ) || (
1316 strcmp( codec_context->codec->name, "dnxhd" ) &&
1317 strcmp( codec_context->codec->name, "dvvideo" ) &&
1318 strcmp( codec_context->codec->name, "huffyuv" ) &&
1319 strcmp( codec_context->codec->name, "mjpeg" ) &&
1320 strcmp( codec_context->codec->name, "rawvideo" ) );
1322 // Turn on usage of new seek API and PTS for seeking
1323 int use_new_seek = self->seekable &&
1324 codec_context->codec_id == CODEC_ID_H264 && !strcmp( context->iformat->name, "mpegts" );
1325 if ( mlt_properties_get( properties, "new_seek" ) )
1326 use_new_seek = mlt_properties_get_int( properties, "new_seek" );
1328 // Seek if necessary
1329 int paused = seek_video( self, position, req_position, must_decode, use_new_seek, &ignore );
1331 // Seek might have reopened the file
1332 context = self->video_format;
1333 stream = context->streams[ self->video_index ];
1334 codec_context = stream->codec;
1336 // Duplicate the last image if necessary
1337 if ( self->av_frame && self->av_frame->linesize[0] && self->got_picture
1339 || self->current_position == req_position
1340 || ( !use_new_seek && self->current_position > req_position ) ) )
1343 if ( ( image_size = allocate_buffer( frame, codec_context, buffer, format, width, height ) ) )
1345 // Workaround 1088 encodings missing cropping info.
1346 if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1349 if ( self->vdpau && self->vdpau->buffer )
1352 picture.data[0] = self->vdpau->buffer;
1353 picture.data[2] = self->vdpau->buffer + codec_context->width * codec_context->height;
1354 picture.data[1] = self->vdpau->buffer + codec_context->width * codec_context->height * 5 / 4;
1355 picture.linesize[0] = codec_context->width;
1356 picture.linesize[1] = codec_context->width / 2;
1357 picture.linesize[2] = codec_context->width / 2;
1358 convert_image( (AVFrame*) &picture, *buffer,
1359 PIX_FMT_YUV420P, format, *width, *height, self->colorspace );
1363 convert_image( self->av_frame, *buffer, codec_context->pix_fmt,
1364 format, *width, *height, self->colorspace );
1367 mlt_frame_get_image( frame, buffer, format, width, height, writable );
1372 int64_t int_position = 0;
1373 int decode_errors = 0;
1374 int got_picture = 0;
1376 av_init_packet( &pkt );
1378 // Construct an AVFrame for YUV422 conversion
1379 if ( !self->av_frame )
1380 self->av_frame = avcodec_alloc_frame( );
1382 while( ret >= 0 && !got_picture )
1385 pthread_mutex_lock( &self->packets_mutex );
1386 if ( mlt_deque_count( self->vpackets ) )
1388 AVPacket *tmp = (AVPacket*) mlt_deque_pop_front( self->vpackets );
1394 ret = av_read_frame( context, &pkt );
1395 if ( ret >= 0 && !self->seekable && pkt.stream_index == self->audio_index )
1397 if ( !av_dup_packet( &pkt ) )
1399 AVPacket *tmp = malloc( sizeof(AVPacket) );
1401 mlt_deque_push_back( self->apackets, tmp );
1405 pthread_mutex_unlock( &self->packets_mutex );
1407 // We only deal with video from the selected video_index
1408 if ( ret >= 0 && pkt.stream_index == self->video_index && pkt.size > 0 )
1410 // Determine time code of the packet
1413 int64_t pts = pkt.pts;
1414 if ( self->first_pts > 0 )
1415 pts -= self->first_pts;
1416 else if ( context->start_time != AV_NOPTS_VALUE )
1417 pts -= context->start_time;
1418 int_position = ( int64_t )( av_q2d( stream->time_base ) * pts * source_fps + 0.1 );
1419 if ( pkt.pts == AV_NOPTS_VALUE )
1421 self->invalid_pts_counter++;
1422 if ( self->invalid_pts_counter > 20 )
1424 mlt_log_panic( MLT_PRODUCER_SERVICE(producer), "\ainvalid PTS; DISABLING NEW_SEEK!\n" );
1425 mlt_properties_set_int( properties, "new_seek", 0 );
1426 int_position = req_position;
1432 self->invalid_pts_counter = 0;
1434 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "pkt.pts %"PRId64" req_pos %"PRId64" cur_pos %"PRId64" pkt_pos %"PRId64"\n",
1435 pkt.pts, req_position, self->current_position, int_position );
1439 if ( pkt.dts != AV_NOPTS_VALUE )
1441 double delay = mlt_properties_get_double( properties, "video_delay" );
1442 int_position = ( int64_t )( ( av_q2d( stream->time_base ) * pkt.dts + delay ) * source_fps + 0.5 );
1443 if ( context->start_time != AV_NOPTS_VALUE )
1444 int_position -= ( int64_t )( context->start_time * source_fps / AV_TIME_BASE + 0.5 );
1445 if ( int_position == self->last_position )
1446 int_position = self->last_position + 1;
1448 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "pkt.dts %"PRId64" req_pos %"PRId64" cur_pos %"PRId64" pkt_pos %"PRId64"\n",
1449 pkt.dts, req_position, self->current_position, int_position );
1450 // Make a dumb assumption on streams that contain wild timestamps
1451 if ( abs( req_position - int_position ) > 999 )
1453 int_position = req_position;
1454 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), " WILD TIMESTAMP!" );
1457 self->last_position = int_position;
1460 if ( must_decode || int_position >= req_position )
1463 if ( g_vdpau && self->vdpau )
1465 if ( g_vdpau->producer != self )
1467 vdpau_decoder_close();
1468 vdpau_decoder_init( self );
1471 self->vdpau->is_decoded = 0;
1474 codec_context->reordered_opaque = pkt.pts;
1475 if ( int_position >= req_position )
1476 codec_context->skip_loop_filter = AVDISCARD_NONE;
1477 #if (LIBAVCODEC_VERSION_INT >= ((52<<16)+(26<<8)+0))
1478 ret = avcodec_decode_video2( codec_context, self->av_frame, &got_picture, &pkt );
1480 ret = avcodec_decode_video( codec_context, self->av_frame, &got_picture, pkt.data, pkt.size );
1482 // Note: decode may fail at the beginning of MPEGfile (B-frames referencing before first I-frame), so allow a few errors.
1485 if ( ++decode_errors <= 10 )
1498 // Determine time code of the packet
1499 int64_t pts = self->av_frame->reordered_opaque;
1500 if ( self->first_pts > 0 )
1501 pts -= self->first_pts;
1502 else if ( context->start_time != AV_NOPTS_VALUE )
1503 pts -= context->start_time;
1504 int_position = ( int64_t )( av_q2d( stream->time_base) * pts * source_fps + 0.1 );
1505 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), "got frame %"PRId64", key %d\n", int_position, self->av_frame->key_frame );
1508 if ( int_position < req_position )
1513 else if ( int_position >= req_position )
1516 codec_context->skip_loop_filter = AVDISCARD_NONE;
1518 else if ( ignore -- )
1523 mlt_log_debug( MLT_PRODUCER_SERVICE(producer), " got_pic %d key %d\n", got_picture, pkt.flags & PKT_FLAG_KEY );
1526 // Now handle the picture if we have one
1529 if ( ( image_size = allocate_buffer( frame, codec_context, buffer, format, width, height ) ) )
1531 // Workaround 1088 encodings missing cropping info.
1532 if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1537 if ( self->vdpau->is_decoded )
1539 struct vdpau_render_state *render = (struct vdpau_render_state*) self->av_frame->data[0];
1541 uint32_t pitches[3];
1542 VdpYCbCrFormat dest_format = VDP_YCBCR_FORMAT_YV12;
1544 if ( !self->vdpau->buffer )
1545 self->vdpau->buffer = mlt_pool_alloc( codec_context->width * codec_context->height * 3 / 2 );
1546 self->av_frame->data[0] = planes[0] = self->vdpau->buffer;
1547 self->av_frame->data[2] = planes[1] = self->vdpau->buffer + codec_context->width * codec_context->height;
1548 self->av_frame->data[1] = planes[2] = self->vdpau->buffer + codec_context->width * codec_context->height * 5 / 4;
1549 self->av_frame->linesize[0] = pitches[0] = codec_context->width;
1550 self->av_frame->linesize[1] = pitches[1] = codec_context->width / 2;
1551 self->av_frame->linesize[2] = pitches[2] = codec_context->width / 2;
1553 VdpStatus status = vdp_surface_get_bits( render->surface, dest_format, planes, pitches );
1554 if ( status == VDP_STATUS_OK )
1556 convert_image( self->av_frame, *buffer, PIX_FMT_YUV420P,
1557 format, *width, *height, self->colorspace );
1561 mlt_log_error( MLT_PRODUCER_SERVICE(producer), "VDPAU Error: %s\n", vdp_get_error_string( status ) );
1562 image_size = self->vdpau->is_decoded = 0;
1567 mlt_log_error( MLT_PRODUCER_SERVICE(producer), "VDPAU error in VdpDecoderRender\n" );
1568 image_size = got_picture = 0;
1573 convert_image( self->av_frame, *buffer, codec_context->pix_fmt,
1574 format, *width, *height, self->colorspace );
1575 self->top_field_first |= self->av_frame->top_field_first;
1576 self->current_position = int_position;
1577 self->got_picture = 1;
1584 if ( self->seekable || pkt.stream_index != self->audio_index )
1585 av_free_packet( &pkt );
1589 if ( self->got_picture && image_size > 0 && self->image_cache )
1591 // Copy buffer to image cache
1592 uint8_t *image = mlt_pool_alloc( image_size );
1593 memcpy( image, *buffer, image_size );
1594 mlt_cache_put( self->image_cache, (void*) position, image, *format, mlt_pool_release );
1596 // Try to duplicate last image if there was a decoding failure
1597 else if ( !image_size && self->av_frame && self->av_frame->linesize[0] )
1600 if ( ( image_size = allocate_buffer( frame, codec_context, buffer, format, width, height ) ) )
1602 // Workaround 1088 encodings missing cropping info.
1603 if ( *height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1606 if ( self->vdpau && self->vdpau->buffer )
1609 picture.data[0] = self->vdpau->buffer;
1610 picture.data[2] = self->vdpau->buffer + codec_context->width * codec_context->height;
1611 picture.data[1] = self->vdpau->buffer + codec_context->width * codec_context->height * 5 / 4;
1612 picture.linesize[0] = codec_context->width;
1613 picture.linesize[1] = codec_context->width / 2;
1614 picture.linesize[2] = codec_context->width / 2;
1615 convert_image( (AVFrame*) &picture, *buffer,
1616 PIX_FMT_YUV420P, format, *width, *height, self->colorspace );
1620 convert_image( self->av_frame, *buffer, codec_context->pix_fmt,
1621 format, *width, *height, self->colorspace );
1622 self->got_picture = 1;
1625 mlt_frame_get_image( frame, buffer, format, width, height, writable );
1628 // Regardless of speed, we expect to get the next frame (cos we ain't too bright)
1629 self->video_expected = position + 1;
1633 pthread_mutex_unlock( &self->video_mutex );
1635 // Set the progressive flag
1636 if ( mlt_properties_get( properties, "force_progressive" ) )
1637 mlt_properties_set_int( frame_properties, "progressive", !!mlt_properties_get_int( properties, "force_progressive" ) );
1638 else if ( self->av_frame )
1639 mlt_properties_set_int( frame_properties, "progressive", !self->av_frame->interlaced_frame );
1641 // Set the field order property for this frame
1642 if ( mlt_properties_get( properties, "force_tff" ) )
1643 mlt_properties_set_int( frame_properties, "top_field_first", !!mlt_properties_get_int( properties, "force_tff" ) );
1645 mlt_properties_set_int( frame_properties, "top_field_first", self->top_field_first );
1647 // Set immutable properties of the selected track's (or overridden) source attributes.
1648 mlt_service_lock( MLT_PRODUCER_SERVICE( producer ) );
1649 mlt_properties_set_int( properties, "meta.media.top_field_first", self->top_field_first );
1650 mlt_properties_set_int( properties, "meta.media.progressive", mlt_properties_get_int( frame_properties, "progressive" ) );
1651 mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
1653 return !self->got_picture;
1656 /** Process properties as AVOptions and apply to AV context obj
1659 static void apply_properties( void *obj, mlt_properties properties, int flags )
1662 int count = mlt_properties_count( properties );
1663 for ( i = 0; i < count; i++ )
1665 const char *opt_name = mlt_properties_get_name( properties, i );
1666 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
1667 if ( opt_name && mlt_properties_get( properties, opt_name ) )
1670 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
1671 av_set_string3( obj, opt_name, mlt_properties_get( properties, opt_name), 0, NULL );
1672 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
1673 av_set_string2( obj, opt_name, mlt_properties_get( properties, opt_name), 0 );
1675 av_set_string( obj, opt_name, mlt_properties_get( properties, opt_name) );
1681 /** Initialize the video codec context.
1684 static int video_codec_init( producer_avformat self, int index, mlt_properties properties )
1686 // Initialise the codec if necessary
1687 if ( !self->video_codec )
1689 // Get the video stream
1690 AVStream *stream = self->video_format->streams[ index ];
1692 // Get codec context
1693 AVCodecContext *codec_context = stream->codec;
1696 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
1698 if ( codec_context->codec_id == CODEC_ID_H264 )
1700 if ( ( codec = avcodec_find_decoder_by_name( "h264_vdpau" ) ) )
1702 if ( vdpau_init( self ) )
1704 self->video_codec = codec_context;
1705 if ( !vdpau_decoder_init( self ) )
1706 vdpau_decoder_close();
1710 codec = avcodec_find_decoder( codec_context->codec_id );
1714 // Initialise multi-threading
1715 int thread_count = mlt_properties_get_int( properties, "threads" );
1716 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
1717 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
1718 if ( thread_count > 1 )
1719 codec_context->thread_count = thread_count;
1721 // If we don't have a codec and we can't initialise it, we can't do much more...
1723 if ( codec && avcodec_open( codec_context, codec ) >= 0 )
1725 // Now store the codec with its destructor
1726 self->video_codec = codec_context;
1730 // Remember that we can't use this later
1731 self->video_index = -1;
1737 // Process properties as AVOptions
1738 apply_properties( codec_context, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
1739 #if LIBAVCODEC_VERSION_MAJOR >= 53
1740 if ( codec->priv_class && codec_context->priv_data )
1741 apply_properties( codec_context->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
1744 // Reset some image properties
1745 mlt_properties_set_int( properties, "width", self->video_codec->width );
1746 mlt_properties_set_int( properties, "height", self->video_codec->height );
1747 // For DV, we'll just use the saved aspect ratio
1748 if ( codec_context->codec_id != CODEC_ID_DVVIDEO )
1749 get_aspect_ratio( properties, stream, self->video_codec, NULL );
1751 // Determine the fps first from the codec
1752 double source_fps = (double) self->video_codec->time_base.den /
1753 ( self->video_codec->time_base.num == 0 ? 1 : self->video_codec->time_base.num );
1755 if ( mlt_properties_get( properties, "force_fps" ) )
1757 source_fps = mlt_properties_get_double( properties, "force_fps" );
1758 stream->time_base = av_d2q( source_fps, 1024 );
1759 mlt_properties_set_int( properties, "meta.media.frame_rate_num", stream->time_base.num );
1760 mlt_properties_set_int( properties, "meta.media.frame_rate_den", stream->time_base.den );
1764 // If the muxer reports a frame rate different than the codec
1765 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(42<<8)+0)
1766 double muxer_fps = av_q2d( stream->avg_frame_rate );
1767 if ( isnan( muxer_fps ) || muxer_fps == 0 )
1768 muxer_fps = av_q2d( stream->r_frame_rate );
1770 double muxer_fps = av_q2d( stream->r_frame_rate );
1772 // Choose the lesser - the wrong tends to be off by some multiple of 10
1773 source_fps = FFMIN( source_fps, muxer_fps );
1774 if ( source_fps >= 1.0 && ( source_fps < muxer_fps || isnan( muxer_fps ) ) )
1776 mlt_properties_set_int( properties, "meta.media.frame_rate_num", self->video_codec->time_base.den );
1777 mlt_properties_set_int( properties, "meta.media.frame_rate_den", self->video_codec->time_base.num == 0 ? 1 : self->video_codec->time_base.num );
1779 else if ( muxer_fps > 0 )
1781 AVRational frame_rate = stream->r_frame_rate;
1782 // With my samples when r_frame_rate != 1000 but avg_frame_rate is valid,
1783 // avg_frame_rate gives some approximate value that does not well match the media.
1784 // Also, on my sample where r_frame_rate = 1000, using avg_frame_rate directly
1785 // results in some very choppy output, but some value slightly different works
1787 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(42<<8)+0)
1788 if ( av_q2d( stream->r_frame_rate ) >= 1000 && av_q2d( stream->avg_frame_rate ) > 0 )
1789 frame_rate = av_d2q( av_q2d( stream->avg_frame_rate ), 1024 );
1791 mlt_properties_set_int( properties, "meta.media.frame_rate_num", frame_rate.num );
1792 mlt_properties_set_int( properties, "meta.media.frame_rate_den", frame_rate.den );
1796 source_fps = mlt_producer_get_fps( self->parent );
1797 AVRational frame_rate = av_d2q( source_fps, 255 );
1798 mlt_properties_set_int( properties, "meta.media.frame_rate_num", frame_rate.num );
1799 mlt_properties_set_int( properties, "meta.media.frame_rate_den", frame_rate.den );
1803 // source_fps is deprecated in favor of meta.media.frame_rate_num and .frame_rate_den
1804 if ( source_fps > 0 )
1805 mlt_properties_set_double( properties, "source_fps", source_fps );
1807 mlt_properties_set_double( properties, "source_fps", mlt_producer_get_fps( self->parent ) );
1809 // Set the YUV colorspace from override or detect
1810 self->colorspace = mlt_properties_get_int( properties, "force_colorspace" );
1811 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
1812 if ( ! self->colorspace )
1814 switch ( self->video_codec->colorspace )
1816 case AVCOL_SPC_SMPTE240M:
1817 self->colorspace = 240;
1819 case AVCOL_SPC_BT470BG:
1820 case AVCOL_SPC_SMPTE170M:
1821 self->colorspace = 601;
1823 case AVCOL_SPC_BT709:
1824 self->colorspace = 709;
1827 // This is a heuristic Charles Poynton suggests in "Digital Video and HDTV"
1828 self->colorspace = self->video_codec->width * self->video_codec->height > 750000 ? 709 : 601;
1833 // Let apps get chosen colorspace
1834 mlt_properties_set_int( properties, "meta.media.colorspace", self->colorspace );
1836 return self->video_codec && self->video_index > -1;
1839 /** Set up video handling.
1842 static void producer_set_up_video( producer_avformat self, mlt_frame frame )
1845 mlt_producer producer = self->parent;
1847 // Get the properties
1848 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
1850 // Fetch the video format context
1851 AVFormatContext *context = self->video_format;
1853 // Get the video_index
1854 int index = mlt_properties_get_int( properties, "video_index" );
1856 // Reopen the file if necessary
1857 if ( !context && index > -1 )
1859 producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
1860 mlt_properties_get( properties, "resource" ), 1 );
1861 context = self->video_format;
1864 // Exception handling for video_index
1865 if ( context && index >= (int) context->nb_streams )
1867 // Get the last video stream
1868 for ( index = context->nb_streams - 1;
1869 index >= 0 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_VIDEO;
1871 mlt_properties_set_int( properties, "video_index", index );
1873 if ( context && index > -1 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_VIDEO )
1875 // Invalidate the video stream
1877 mlt_properties_set_int( properties, "video_index", index );
1880 // Update the video properties if the index changed
1881 if ( index != self->video_index )
1883 // Reset the video properties if the index changed
1884 self->video_index = index;
1886 if ( self->video_codec )
1887 avcodec_close( self->video_codec );
1888 self->video_codec = NULL;
1892 // Get the frame properties
1893 mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
1896 if ( context && index > -1 && video_codec_init( self, index, properties ) )
1898 // Set the frame properties
1899 double force_aspect_ratio = mlt_properties_get_double( properties, "force_aspect_ratio" );
1900 double aspect_ratio = ( force_aspect_ratio > 0.0 ) ?
1901 force_aspect_ratio : mlt_properties_get_double( properties, "aspect_ratio" );
1903 // Set the width and height
1904 mlt_properties_set_int( frame_properties, "width", self->video_codec->width );
1905 mlt_properties_set_int( frame_properties, "height", self->video_codec->height );
1906 // real_width and real_height are deprecated in favor of meta.media.width and .height
1907 mlt_properties_set_int( properties, "meta.media.width", self->video_codec->width );
1908 mlt_properties_set_int( properties, "meta.media.height", self->video_codec->height );
1909 mlt_properties_set_int( frame_properties, "real_width", self->video_codec->width );
1910 mlt_properties_set_int( frame_properties, "real_height", self->video_codec->height );
1911 mlt_properties_set_double( frame_properties, "aspect_ratio", aspect_ratio );
1912 mlt_properties_set_int( frame_properties, "colorspace", self->colorspace );
1914 // Workaround 1088 encodings missing cropping info.
1915 if ( self->video_codec->height == 1088 && mlt_profile_dar( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) ) == 16.0/9.0 )
1917 mlt_properties_set_int( properties, "meta.media.height", 1080 );
1918 mlt_properties_set_int( frame_properties, "real_height", 1080 );
1921 // Add our image operation
1922 mlt_frame_push_service( frame, self );
1923 mlt_frame_push_get_image( frame, producer_get_image );
1927 // If something failed, use test card image
1928 mlt_properties_set_int( frame_properties, "test_image", 1 );
1932 static int seek_audio( producer_avformat self, mlt_position position, double timecode, int *ignore )
1936 // Seek if necessary
1937 if ( self->seekable && position != self->audio_expected )
1939 if ( position + 1 == self->audio_expected )
1941 // We're paused - silence required
1944 else if ( !self->seekable && position > self->audio_expected && ( position - self->audio_expected ) < 250 )
1946 // Fast forward - seeking is inefficient for small distances - just ignore following frames
1947 *ignore = position - self->audio_expected;
1949 else if ( position < self->audio_expected || position - self->audio_expected >= 12 )
1951 AVFormatContext *context = self->audio_format;
1952 int64_t timestamp = ( int64_t )( timecode * AV_TIME_BASE + 0.5 );
1953 if ( context->start_time != AV_NOPTS_VALUE )
1954 timestamp += context->start_time;
1955 if ( timestamp < 0 )
1958 // Set to the real timecode
1959 if ( av_seek_frame( context, -1, timestamp, AVSEEK_FLAG_BACKWARD ) != 0 )
1962 // Clear the usage in the audio buffer
1963 int i = MAX_AUDIO_STREAMS + 1;
1965 self->audio_used[i - 1] = 0;
1971 static int sample_bytes( AVCodecContext *context )
1973 #if LIBAVCODEC_VERSION_MAJOR >= 53
1974 return av_get_bits_per_sample_fmt( context->sample_fmt ) / 8;
1976 return av_get_bits_per_sample_format( context->sample_fmt ) / 8;
1980 static int decode_audio( producer_avformat self, int *ignore, AVPacket pkt, int channels, int samples, double timecode, double fps )
1982 // Fetch the audio_format
1983 AVFormatContext *context = self->audio_format;
1985 // Get the current stream index
1986 int index = pkt.stream_index;
1988 // Get codec context
1989 AVCodecContext *codec_context = self->audio_codec[ index ];
1991 // Obtain the resample context if it exists (not always needed)
1992 ReSampleContext *resample = self->audio_resample[ index ];
1994 // Obtain the audio buffers
1995 uint8_t *audio_buffer = self->audio_buffer[ index ];
1996 uint8_t *decode_buffer = self->decode_buffer[ index ];
1998 int audio_used = self->audio_used[ index ];
1999 uint8_t *ptr = pkt.data;
2003 while ( ptr && ret >= 0 && len > 0 )
2005 int sizeof_sample = resample? sizeof( int16_t ) : sample_bytes( codec_context );
2006 int data_size = self->audio_buffer_size[ index ];
2009 #if (LIBAVCODEC_VERSION_INT >= ((52<<16)+(26<<8)+0))
2010 ret = avcodec_decode_audio3( codec_context, (int16_t*) decode_buffer, &data_size, &pkt );
2011 #elif (LIBAVCODEC_VERSION_INT >= ((51<<16)+(29<<8)+0))
2012 ret = avcodec_decode_audio2( codec_context, decode_buffer, &data_size, ptr, len );
2014 ret = avcodec_decode_audio( codec_context, decode_buffer, &data_size, ptr, len );
2018 mlt_log_warning( MLT_PRODUCER_SERVICE(self->parent), "audio decoding error %d\n", ret );
2022 pkt.size = len -= ret;
2023 pkt.data = ptr += ret;
2025 // If decoded successfully
2026 if ( data_size > 0 )
2028 // Figure out how many samples will be needed after resampling
2029 int convert_samples = data_size / codec_context->channels / sample_bytes( codec_context );
2030 int samples_needed = self->resample_factor * convert_samples;
2032 // Resize audio buffer to prevent overflow
2033 if ( ( audio_used + samples_needed ) * channels * sizeof_sample > self->audio_buffer_size[ index ] )
2035 self->audio_buffer_size[ index ] = ( audio_used + samples_needed * 2 ) * channels * sizeof_sample;
2036 audio_buffer = self->audio_buffer[ index ] = mlt_pool_realloc( audio_buffer, self->audio_buffer_size[ index ] );
2040 // Copy to audio buffer while resampling
2041 uint8_t *source = decode_buffer;
2042 uint8_t *dest = &audio_buffer[ audio_used * channels * sizeof_sample ];
2043 audio_used += audio_resample( resample, (short*) dest, (short*) source, convert_samples );
2047 // Straight copy to audio buffer
2048 memcpy( &audio_buffer[ audio_used * codec_context->channels * sizeof_sample ], decode_buffer, data_size );
2049 audio_used += convert_samples;
2053 while ( *ignore && audio_used )
2056 audio_used -= audio_used > samples ? samples : audio_used;
2057 memmove( audio_buffer, &audio_buffer[ samples * (resample? channels : codec_context->channels) * sizeof_sample ],
2058 audio_used * sizeof_sample );
2063 // If we're behind, ignore this packet
2064 // Skip this on non-seekable, audio-only inputs.
2065 if ( pkt.pts >= 0 && ( self->seekable || self->video_format ) && *ignore == 0 && audio_used > samples / 2 )
2067 double current_pts = av_q2d( context->streams[ index ]->time_base ) * pkt.pts;
2068 int64_t req_position = ( int64_t )( timecode * fps + 0.5 );
2069 int64_t int_position = ( int64_t )( current_pts * fps + 0.5 );
2070 if ( context->start_time != AV_NOPTS_VALUE )
2071 int_position -= ( int64_t )( fps * context->start_time / AV_TIME_BASE + 0.5 );
2073 if ( int_position > 0 )
2075 if ( int_position < req_position )
2076 // We are behind, so skip some
2077 *ignore = req_position - int_position;
2078 else if ( self->audio_index != INT_MAX && int_position > req_position + 2 )
2079 // We are ahead, so seek backwards some more
2080 seek_audio( self, req_position, timecode - 1.0, ignore );
2084 self->audio_used[ index ] = audio_used;
2089 /** Get the audio from a frame.
2091 static int producer_get_audio( mlt_frame frame, void **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
2094 producer_avformat self = mlt_frame_pop_audio( frame );
2096 pthread_mutex_lock( &self->audio_mutex );
2098 // Obtain the frame number of this frame
2099 mlt_position position = mlt_properties_get_position( MLT_FRAME_PROPERTIES( frame ), "avformat_position" );
2101 // Calculate the real time code
2102 double real_timecode = producer_time_of_frame( self->parent, position );
2104 // Get the producer fps
2105 double fps = mlt_producer_get_fps( self->parent );
2107 // Number of frames to ignore (for ffwd)
2108 int ignore[ MAX_AUDIO_STREAMS ] = { 0 };
2110 // Flag for paused (silence)
2111 int paused = seek_audio( self, position, real_timecode, &ignore[0] );
2113 // Initialize ignore for all streams from the seek return value
2114 int i = MAX_AUDIO_STREAMS;
2116 ignore[i] = ignore[0];
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 &&
2198 self->audio_used[ self->audio_index ] >= *samples &&
2199 ignore[ self->audio_index ] == 0 )
2204 else if ( self->audio_index == INT_MAX )
2206 // Check if there is enough audio for all streams
2208 for ( index = 0; got_audio && index < context->nb_streams; index++ )
2209 if ( ( self->audio_codec[ index ] && self->audio_used[ index ] < *samples ) || ignore[ index ] )
2216 pthread_mutex_lock( &self->packets_mutex );
2217 if ( mlt_deque_count( self->apackets ) )
2219 AVPacket *tmp = (AVPacket*) mlt_deque_pop_front( self->apackets );
2225 ret = av_read_frame( context, &pkt );
2226 if ( ret >= 0 && !self->seekable && pkt.stream_index == self->video_index )
2228 if ( !av_dup_packet( &pkt ) )
2230 AVPacket *tmp = malloc( sizeof(AVPacket) );
2232 mlt_deque_push_back( self->vpackets, tmp );
2236 pthread_mutex_unlock( &self->packets_mutex );
2238 // We only deal with audio from the selected audio index
2239 index = pkt.stream_index;
2240 if ( ret >= 0 && pkt.data && pkt.size > 0 && ( index == self->audio_index ||
2241 ( self->audio_index == INT_MAX && context->streams[ index ]->codec->codec_type == CODEC_TYPE_AUDIO ) ) )
2243 int channels2 = ( self->audio_index == INT_MAX || !self->audio_resample[index] ) ?
2244 self->audio_codec[index]->channels : *channels;
2245 ret = decode_audio( self, &ignore[index], pkt, channels2, *samples, real_timecode, fps );
2248 if ( self->seekable || index != self->video_index )
2249 av_free_packet( &pkt );
2253 // Set some additional return values
2254 *format = mlt_audio_s16;
2255 if ( self->audio_index != INT_MAX && !self->audio_resample[ self->audio_index ] )
2257 index = self->audio_index;
2258 *channels = self->audio_codec[ index ]->channels;
2259 *frequency = self->audio_codec[ index ]->sample_rate;
2260 *format = self->audio_codec[ index ]->sample_fmt == SAMPLE_FMT_S32 ? mlt_audio_s32le
2261 : self->audio_codec[ index ]->sample_fmt == SAMPLE_FMT_FLT ? mlt_audio_f32le
2263 sizeof_sample = sample_bytes( self->audio_codec[ index ] );
2265 else if ( self->audio_index == INT_MAX )
2267 // This only works if all audio tracks have the same sample format.
2268 for ( index = 0; index < index_max; index++ )
2269 if ( self->audio_codec[ index ] && !self->audio_resample[ index ] )
2271 *format = self->audio_codec[ index ]->sample_fmt == SAMPLE_FMT_S32 ? mlt_audio_s32le
2272 : self->audio_codec[ index ]->sample_fmt == SAMPLE_FMT_FLT ? mlt_audio_f32le
2274 sizeof_sample = sample_bytes( self->audio_codec[ index ] );
2279 // Allocate and set the frame's audio buffer
2280 int size = mlt_audio_format_size( *format, *samples, *channels );
2281 *buffer = mlt_pool_alloc( size );
2282 mlt_frame_set_audio( frame, *buffer, *format, size, mlt_pool_release );
2284 // Interleave tracks if audio_index=all
2285 if ( self->audio_index == INT_MAX )
2287 uint8_t *dest = *buffer;
2289 for ( i = 0; i < *samples; i++ )
2291 for ( index = 0; index < index_max; index++ )
2292 if ( self->audio_codec[ index ] )
2294 int current_channels = self->audio_codec[ index ]->channels;
2295 uint8_t *src = self->audio_buffer[ index ] + i * current_channels * sizeof_sample;
2296 memcpy( dest, src, current_channels * sizeof_sample );
2297 dest += current_channels * sizeof_sample;
2300 for ( index = 0; index < index_max; index++ )
2301 if ( self->audio_codec[ index ] && self->audio_used[ index ] >= *samples )
2303 int current_channels = self->audio_codec[ index ]->channels;
2304 uint8_t *src = self->audio_buffer[ index ] + *samples * current_channels * sizeof_sample;
2305 self->audio_used[index] -= *samples;
2306 memmove( self->audio_buffer[ index ], src, self->audio_used[ index ] * current_channels * sizeof_sample );
2309 // Copy a single track to the output buffer
2312 index = self->audio_index;
2314 // Now handle the audio if we have enough
2315 if ( self->audio_used[ index ] > 0 )
2317 uint8_t *src = self->audio_buffer[ index ];
2318 // copy samples from audio_buffer
2319 size = self->audio_used[ index ] < *samples ? self->audio_used[ index ] : *samples;
2320 memcpy( *buffer, src, size * *channels * sizeof_sample );
2321 // supply the remaining requested samples as silence
2322 if ( *samples > self->audio_used[ index ] )
2323 memset( *buffer + size * *channels * sizeof_sample, 0, ( *samples - self->audio_used[ index ] ) * *channels * sizeof_sample );
2324 // reposition the samples within audio_buffer
2325 self->audio_used[ index ] -= size;
2326 memmove( src, src + size * *channels * sizeof_sample, self->audio_used[ index ] * *channels * sizeof_sample );
2330 // Otherwise fill with silence
2331 memset( *buffer, 0, *samples * *channels * sizeof_sample );
2337 // Get silence and don't touch the context
2338 mlt_frame_get_audio( frame, buffer, format, frequency, channels, samples );
2341 // Regardless of speed (other than paused), we expect to get the next frame
2343 self->audio_expected = position + 1;
2345 pthread_mutex_unlock( &self->audio_mutex );
2350 /** Initialize the audio codec context.
2353 static int audio_codec_init( producer_avformat self, int index, mlt_properties properties )
2355 // Initialise the codec if necessary
2356 if ( !self->audio_codec[ index ] )
2358 // Get codec context
2359 AVCodecContext *codec_context = self->audio_format->streams[index]->codec;
2362 AVCodec *codec = avcodec_find_decoder( codec_context->codec_id );
2364 // If we don't have a codec and we can't initialise it, we can't do much more...
2366 if ( codec && avcodec_open( codec_context, codec ) >= 0 )
2368 // Now store the codec with its destructor
2369 if ( self->audio_codec[ index ] )
2370 avcodec_close( self->audio_codec[ index ] );
2371 self->audio_codec[ index ] = codec_context;
2375 // Remember that we can't use self later
2376 self->audio_index = -1;
2380 // Process properties as AVOptions
2381 apply_properties( codec_context, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
2382 #if LIBAVCODEC_VERSION_MAJOR >= 53
2383 if ( codec && codec->priv_class && codec_context->priv_data )
2384 apply_properties( codec_context->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM );
2387 return self->audio_codec[ index ] && self->audio_index > -1;
2390 /** Set up audio handling.
2393 static void producer_set_up_audio( producer_avformat self, mlt_frame frame )
2396 mlt_producer producer = self->parent;
2398 // Get the properties
2399 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
2401 // Fetch the audio format context
2402 AVFormatContext *context = self->audio_format;
2404 mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
2406 // Get the audio_index
2407 int index = mlt_properties_get_int( properties, "audio_index" );
2409 // Handle all audio tracks
2410 if ( self->audio_index > -1 &&
2411 mlt_properties_get( properties, "audio_index" ) &&
2412 !strcmp( mlt_properties_get( properties, "audio_index" ), "all" ) )
2415 // Reopen the file if necessary
2416 if ( !context && self->audio_index > -1 && index > -1 )
2418 producer_open( self, mlt_service_profile( MLT_PRODUCER_SERVICE(producer) ),
2419 mlt_properties_get( properties, "resource" ), 1 );
2420 context = self->audio_format;
2423 // Exception handling for audio_index
2424 if ( context && index >= (int) context->nb_streams && index < INT_MAX )
2426 for ( index = context->nb_streams - 1;
2427 index >= 0 && context->streams[ index ]->codec->codec_type != CODEC_TYPE_AUDIO;
2429 mlt_properties_set_int( properties, "audio_index", index );
2431 if ( context && index > -1 && index < INT_MAX &&
2432 context->streams[ index ]->codec->codec_type != CODEC_TYPE_AUDIO )
2434 index = self->audio_index;
2435 mlt_properties_set_int( properties, "audio_index", index );
2438 // Update the audio properties if the index changed
2439 if ( context && index > -1 && index != self->audio_index )
2442 if ( self->audio_codec[ self->audio_index ] )
2443 avcodec_close( self->audio_codec[ self->audio_index ] );
2444 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 ) );
2517 producer_set_up_video( self, *frame );
2520 producer_set_up_audio( self, *frame );
2522 // Set the position of this producer
2523 mlt_position position = self->seekable ? mlt_producer_frame( producer ) : self->nonseek_position++;
2524 mlt_properties_set_position( MLT_FRAME_PROPERTIES( *frame ), "avformat_position", position );
2526 // Calculate the next timecode
2527 mlt_producer_prepare_next( producer );
2532 static void producer_avformat_close( producer_avformat self )
2534 mlt_log_debug( NULL, "producer_avformat_close\n" );
2536 // Cleanup av contexts
2537 av_free( self->av_frame );
2540 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
2542 if ( self->audio_resample[i] )
2543 audio_resample_close( self->audio_resample[i] );
2544 mlt_pool_release( self->audio_buffer[i] );
2545 av_free( self->decode_buffer[i] );
2546 if ( self->audio_codec[i] )
2547 avcodec_close( self->audio_codec[i] );
2548 self->audio_codec[i] = NULL;
2550 if ( self->video_codec )
2551 avcodec_close( self->video_codec );
2552 self->video_codec = NULL;
2554 if ( self->dummy_context )
2555 av_close_input_file( self->dummy_context );
2556 if ( self->seekable && self->audio_format )
2557 av_close_input_file( self->audio_format );
2558 if ( self->video_format )
2559 av_close_input_file( self->video_format );
2562 vdpau_producer_close( self );
2564 if ( self->image_cache )
2565 mlt_cache_close( self->image_cache );
2567 // Cleanup the mutexes
2568 pthread_mutex_destroy( &self->audio_mutex );
2569 pthread_mutex_destroy( &self->video_mutex );
2570 pthread_mutex_destroy( &self->packets_mutex );
2572 // Cleanup the packet queues
2574 while ( ( pkt = mlt_deque_pop_back( self->apackets ) ) )
2576 av_free_packet( pkt );
2579 while ( ( pkt = mlt_deque_pop_back( self->vpackets ) ) )
2581 av_free_packet( pkt );
2588 static void producer_close( mlt_producer parent )
2590 // Remove this instance from the cache
2591 mlt_service_cache_purge( MLT_PRODUCER_SERVICE(parent) );
2594 parent->close = NULL;
2595 mlt_producer_close( parent );