2 * consumer_avformat.c -- an encoder based on avformat
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
5 * Much code borrowed from ffmpeg.c: Copyright (c) 2000-2003 Fabrice Bellard
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <framework/mlt_consumer.h>
24 #include <framework/mlt_frame.h>
25 #include <framework/mlt_profile.h>
26 #include <framework/mlt_log.h>
27 #include <framework/mlt_events.h>
29 // System header files
38 // avformat header files
39 #include <libavformat/avformat.h>
40 #include <libavformat/avio.h>
42 #include <libswscale/swscale.h>
44 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
45 #include <libavutil/pixdesc.h>
48 #if LIBAVUTIL_VERSION_INT < (50<<16)
49 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
50 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
53 #if LIBAVCODEC_VERSION_MAJOR >= 53
54 #include <libavutil/opt.h>
55 #define CODEC_TYPE_VIDEO AVMEDIA_TYPE_VIDEO
56 #define CODEC_TYPE_AUDIO AVMEDIA_TYPE_AUDIO
57 #define PKT_FLAG_KEY AV_PKT_FLAG_KEY
59 #include <libavcodec/opt.h>
62 #define MAX_AUDIO_STREAMS (8)
63 #define AUDIO_ENCODE_BUFFER_SIZE (48000 * 2 * MAX_AUDIO_STREAMS)
64 #define AUDIO_BUFFER_SIZE (1024 * 42)
65 #define VIDEO_BUFFER_SIZE (2048 * 1024)
67 void avformat_lock( );
68 void avformat_unlock( );
71 // This structure should be extended and made globally available in mlt
83 *sample_fifo, sample_fifo_s;
85 sample_fifo sample_fifo_init( int frequency, int channels )
87 sample_fifo fifo = calloc( 1, sizeof( sample_fifo_s ) );
88 fifo->frequency = frequency;
89 fifo->channels = channels;
93 // sample_fifo_clear and check are temporarily aborted (not working as intended)
95 void sample_fifo_clear( sample_fifo fifo, double time )
97 int words = ( float )( time - fifo->time ) * fifo->frequency * fifo->channels;
98 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )fifo->time * 100 ) && fifo->used > words && words > 0 )
100 memmove( fifo->buffer, &fifo->buffer[ words ], ( fifo->used - words ) * sizeof( int16_t ) );
104 else if ( ( int )( ( float )time * 100 ) != ( int )( ( float )fifo->time * 100 ) )
111 void sample_fifo_check( sample_fifo fifo, double time )
113 if ( fifo->used == 0 )
115 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )fifo->time * 100 ) )
120 void sample_fifo_append( sample_fifo fifo, int16_t *samples, int count )
122 if ( ( fifo->size - fifo->used ) < count )
124 fifo->size += count * 5;
125 fifo->buffer = realloc( fifo->buffer, fifo->size * sizeof( int16_t ) );
128 memcpy( &fifo->buffer[ fifo->used ], samples, count * sizeof( int16_t ) );
132 int sample_fifo_used( sample_fifo fifo )
137 int sample_fifo_fetch( sample_fifo fifo, int16_t *samples, int count )
139 if ( count > fifo->used )
142 memcpy( samples, fifo->buffer, count * sizeof( int16_t ) );
144 memmove( fifo->buffer, &fifo->buffer[ count ], fifo->used * sizeof( int16_t ) );
146 fifo->time += ( double )count / fifo->channels / fifo->frequency;
151 void sample_fifo_close( sample_fifo fifo )
153 free( fifo->buffer );
157 // Forward references.
158 static int consumer_start( mlt_consumer consumer );
159 static int consumer_stop( mlt_consumer consumer );
160 static int consumer_is_stopped( mlt_consumer consumer );
161 static void *consumer_thread( void *arg );
162 static void consumer_close( mlt_consumer consumer );
164 /** Initialise the consumer.
167 mlt_consumer consumer_avformat_init( mlt_profile profile, char *arg )
169 // Allocate the consumer
170 mlt_consumer consumer = mlt_consumer_new( profile );
172 // If memory allocated and initialises without error
173 if ( consumer != NULL )
175 // Get properties from the consumer
176 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
178 // Assign close callback
179 consumer->close = consumer_close;
181 // Interpret the argument
183 mlt_properties_set( properties, "target", arg );
185 // sample and frame queue
186 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
188 // Audio options not fully handled by AVOptions
189 #define QSCALE_NONE (-99999)
190 mlt_properties_set_int( properties, "aq", QSCALE_NONE );
192 // Video options not fully handled by AVOptions
193 mlt_properties_set_int( properties, "dc", 8 );
195 // Muxer options not fully handled by AVOptions
196 mlt_properties_set_double( properties, "muxdelay", 0.7 );
197 mlt_properties_set_double( properties, "muxpreload", 0.5 );
199 // Ensure termination at end of the stream
200 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
202 // Default to separate processing threads for producer and consumer with no frame dropping!
203 mlt_properties_set_int( properties, "real_time", -1 );
204 mlt_properties_set_int( properties, "prefill", 1 );
206 // Set up start/stop/terminated callbacks
207 consumer->start = consumer_start;
208 consumer->stop = consumer_stop;
209 consumer->is_stopped = consumer_is_stopped;
211 mlt_events_register( properties, "consumer-fatal-error", NULL );
218 /** Start the consumer.
221 static int consumer_start( mlt_consumer consumer )
223 // Get the properties
224 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
227 // Report information about available muxers and codecs as YAML Tiny
228 char *s = mlt_properties_get( properties, "f" );
229 if ( s && strcmp( s, "list" ) == 0 )
231 mlt_properties doc = mlt_properties_new();
232 mlt_properties formats = mlt_properties_new();
234 AVOutputFormat *format = NULL;
236 mlt_properties_set_data( properties, "f", formats, 0, (mlt_destructor) mlt_properties_close, NULL );
237 mlt_properties_set_data( doc, "formats", formats, 0, NULL, NULL );
238 while ( ( format = av_oformat_next( format ) ) )
240 snprintf( key, sizeof(key), "%d", mlt_properties_count( formats ) );
241 mlt_properties_set( formats, key, format->name );
243 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
244 mlt_properties_close( doc );
247 s = mlt_properties_get( properties, "acodec" );
248 if ( s && strcmp( s, "list" ) == 0 )
250 mlt_properties doc = mlt_properties_new();
251 mlt_properties codecs = mlt_properties_new();
253 AVCodec *codec = NULL;
255 mlt_properties_set_data( properties, "acodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
256 mlt_properties_set_data( doc, "audio_codecs", codecs, 0, NULL, NULL );
257 while ( ( codec = av_codec_next( codec ) ) )
258 if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
260 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
261 mlt_properties_set( codecs, key, codec->name );
263 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
264 mlt_properties_close( doc );
267 s = mlt_properties_get( properties, "vcodec" );
268 if ( s && strcmp( s, "list" ) == 0 )
270 mlt_properties doc = mlt_properties_new();
271 mlt_properties codecs = mlt_properties_new();
273 AVCodec *codec = NULL;
275 mlt_properties_set_data( properties, "vcodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
276 mlt_properties_set_data( doc, "video_codecs", codecs, 0, NULL, NULL );
277 while ( ( codec = av_codec_next( codec ) ) )
278 if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
280 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
281 mlt_properties_set( codecs, key, codec->name );
283 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
284 mlt_properties_close( doc );
288 // Check that we're not already running
289 if ( !error && !mlt_properties_get_int( properties, "running" ) )
292 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
294 // Get the width and height
295 int width = mlt_properties_get_int( properties, "width" );
296 int height = mlt_properties_get_int( properties, "height" );
298 // Obtain the size property
299 char *size = mlt_properties_get( properties, "s" );
305 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
312 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Invalid size property %s - ignoring.\n", size );
316 // Now ensure we honour the multiple of two requested by libavformat
317 width = ( width / 2 ) * 2;
318 height = ( height / 2 ) * 2;
319 mlt_properties_set_int( properties, "width", width );
320 mlt_properties_set_int( properties, "height", height );
322 // We need to set these on the profile as well because the s property is
323 // an alias to mlt properties that correspond to profile settings.
324 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
327 profile->width = width;
328 profile->height = height;
331 // Handle the ffmpeg command line "-r" property for frame rate
332 if ( mlt_properties_get( properties, "r" ) )
334 double frame_rate = mlt_properties_get_double( properties, "r" );
335 AVRational rational = av_d2q( frame_rate, 255 );
336 mlt_properties_set_int( properties, "frame_rate_num", rational.num );
337 mlt_properties_set_int( properties, "frame_rate_den", rational.den );
340 profile->frame_rate_num = rational.num;
341 profile->frame_rate_den = rational.den;
342 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
346 // Apply AVOptions that are synonyms for standard mlt_consumer options
347 if ( mlt_properties_get( properties, "ac" ) )
348 mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
349 if ( mlt_properties_get( properties, "ar" ) )
350 mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
352 // Assign the thread to properties
353 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
355 // Set the running state
356 mlt_properties_set_int( properties, "running", 1 );
359 pthread_create( thread, NULL, consumer_thread, consumer );
364 /** Stop the consumer.
367 static int consumer_stop( mlt_consumer consumer )
369 // Get the properties
370 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
372 // Check that we're running
373 if ( mlt_properties_get_int( properties, "running" ) )
376 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
379 mlt_properties_set_int( properties, "running", 0 );
381 // Wait for termination
382 pthread_join( *thread, NULL );
388 /** Determine if the consumer is stopped.
391 static int consumer_is_stopped( mlt_consumer consumer )
393 // Get the properties
394 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
395 return !mlt_properties_get_int( properties, "running" );
398 /** Process properties as AVOptions and apply to AV context obj
401 static void apply_properties( void *obj, mlt_properties properties, int flags )
404 int count = mlt_properties_count( properties );
407 for ( i = 0; i < count; i++ )
409 const char *opt_name = mlt_properties_get_name( properties, i );
410 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
412 // If option not found, see if it was prefixed with a or v (-vb)
414 ( opt_name[0] == 'v' && ( flags & AV_OPT_FLAG_VIDEO_PARAM ) ) ||
415 ( opt_name[0] == 'a' && ( flags & AV_OPT_FLAG_AUDIO_PARAM ) ) ) )
416 opt = av_find_opt( obj, ++opt_name, NULL, flags, flags );
417 // Apply option if found
419 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
420 av_set_string3( obj, opt_name, mlt_properties_get_value( properties, i), alloc, NULL );
421 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
422 av_set_string2( obj, opt_name, mlt_properties_get_value( properties, i), alloc );
424 av_set_string( obj, opt_name, mlt_properties_get_value( properties, i) );
429 /** Add an audio output stream
432 static AVStream *add_audio_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec, int channels )
434 // Get the properties
435 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
437 // Create a new stream
438 AVStream *st = av_new_stream( oc, oc->nb_streams );
440 // If created, then initialise from properties
443 AVCodecContext *c = st->codec;
445 // Establish defaults from AVOptions
446 #if LIBAVCODEC_VERSION_MAJOR >= 53
447 avcodec_get_context_defaults3( c, codec );
449 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
452 c->codec_id = codec->id;
453 c->codec_type = CODEC_TYPE_AUDIO;
454 c->sample_fmt = SAMPLE_FMT_S16;
456 #if 0 // disabled until some audio codecs are multi-threaded
457 // Setup multi-threading
458 int thread_count = mlt_properties_get_int( properties, "threads" );
459 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
460 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
461 if ( thread_count > 1 )
462 c->thread_count = thread_count;
465 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
466 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
468 // Allow the user to override the audio fourcc
469 if ( mlt_properties_get( properties, "atag" ) )
472 char *arg = mlt_properties_get( properties, "atag" );
473 int tag = strtol( arg, &tail, 0);
475 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
479 // Process properties as AVOptions
480 char *apre = mlt_properties_get( properties, "apre" );
483 mlt_properties p = mlt_properties_load( apre );
484 apply_properties( c, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
485 mlt_properties_close( p );
487 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
489 int audio_qscale = mlt_properties_get_int( properties, "aq" );
490 if ( audio_qscale > QSCALE_NONE )
492 c->flags |= CODEC_FLAG_QSCALE;
493 c->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
496 // Set parameters controlled by MLT
497 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
498 c->time_base = ( AVRational ){ 1, c->sample_rate };
499 c->channels = channels;
501 if ( mlt_properties_get( properties, "alang" ) != NULL )
502 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
503 av_metadata_set2( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
506 strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
511 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for audio\n" );
517 static int open_audio( mlt_properties properties, AVFormatContext *oc, AVStream *st, int audio_outbuf_size, const char *codec_name )
519 // We will return the audio input size from here
520 int audio_input_frame_size = 0;
523 AVCodecContext *c = st->codec;
528 codec = avcodec_find_encoder_by_name( codec_name );
530 codec = avcodec_find_encoder( c->codec_id );
532 #if LIBAVCODEC_VERSION_MAJOR >= 53
533 // Process properties as AVOptions on the AVCodec
534 if ( codec && codec->priv_class )
536 char *apre = mlt_properties_get( properties, "apre" );
537 if ( !c->priv_data && codec->priv_data_size )
539 c->priv_data = av_mallocz( codec->priv_data_size );
540 *(const AVClass **) c->priv_data = codec->priv_class;
541 // av_opt_set_defaults( c );
545 mlt_properties p = mlt_properties_load( apre );
546 apply_properties( c->priv_data, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
547 mlt_properties_close( p );
549 apply_properties( c->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
555 // Continue if codec found and we can open it
556 if ( codec != NULL && avcodec_open( c, codec ) >= 0 )
558 // ugly hack for PCM codecs (will be removed ASAP with new PCM
559 // support to compute the input frame size in samples
560 if ( c->frame_size <= 1 )
562 audio_input_frame_size = audio_outbuf_size / c->channels;
563 switch(st->codec->codec_id)
565 case CODEC_ID_PCM_S16LE:
566 case CODEC_ID_PCM_S16BE:
567 case CODEC_ID_PCM_U16LE:
568 case CODEC_ID_PCM_U16BE:
569 audio_input_frame_size >>= 1;
577 audio_input_frame_size = c->frame_size;
580 // Some formats want stream headers to be seperate (hmm)
581 if ( !strcmp( oc->oformat->name, "mp4" ) ||
582 !strcmp( oc->oformat->name, "mov" ) ||
583 !strcmp( oc->oformat->name, "3gp" ) )
584 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
588 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
593 return audio_input_frame_size;
596 static void close_audio( AVFormatContext *oc, AVStream *st )
598 if ( st && st->codec )
601 avcodec_close( st->codec );
606 /** Add a video output stream
609 static AVStream *add_video_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec )
611 // Get the properties
612 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
614 // Create a new stream
615 AVStream *st = av_new_stream( oc, oc->nb_streams );
619 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
620 AVCodecContext *c = st->codec;
622 // Establish defaults from AVOptions
623 #if LIBAVCODEC_VERSION_MAJOR >= 53
624 avcodec_get_context_defaults3( c, codec );
626 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
629 c->codec_id = codec->id;
630 c->codec_type = CODEC_TYPE_VIDEO;
632 // Setup multi-threading
633 int thread_count = mlt_properties_get_int( properties, "threads" );
634 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
635 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
636 if ( thread_count > 1 )
637 c->thread_count = thread_count;
639 // Process properties as AVOptions
640 char *vpre = mlt_properties_get( properties, "vpre" );
643 mlt_properties p = mlt_properties_load( vpre );
645 if ( mlt_properties_count( p ) < 1 )
647 AVCodec *codec = avcodec_find_encoder( c->codec_id );
650 char *path = malloc( strlen(AVDATADIR) + strlen(codec->name) + strlen(vpre) + strlen(".ffpreset") + 2 );
651 strcpy( path, AVDATADIR );
652 strcat( path, codec->name );
654 strcat( path, vpre );
655 strcat( path, ".ffpreset" );
657 mlt_properties_close( p );
658 p = mlt_properties_load( path );
659 if ( mlt_properties_count( p ) > 0 )
660 mlt_properties_debug( p, path, stderr );
666 mlt_properties_debug( p, vpre, stderr );
669 apply_properties( c, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
670 mlt_properties_close( p );
672 int colorspace = mlt_properties_get_int( properties, "colorspace" );
673 mlt_properties_set( properties, "colorspace", NULL );
674 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
675 mlt_properties_set_int( properties, "colorspace", colorspace );
677 // Set options controlled by MLT
678 c->width = mlt_properties_get_int( properties, "width" );
679 c->height = mlt_properties_get_int( properties, "height" );
680 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
681 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
682 if ( st->time_base.den == 0 )
683 st->time_base = c->time_base;
684 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
685 c->pix_fmt = pix_fmt ? av_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
687 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
690 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
691 switch ( colorspace )
694 c->colorspace = AVCOL_SPC_SMPTE170M;
697 c->colorspace = AVCOL_SPC_SMPTE240M;
700 c->colorspace = AVCOL_SPC_BT470BG;
703 c->colorspace = ( 576 % c->height ) ? AVCOL_SPC_SMPTE170M : AVCOL_SPC_BT470BG;
706 c->colorspace = AVCOL_SPC_BT709;
711 if ( mlt_properties_get( properties, "aspect" ) )
713 // "-aspect" on ffmpeg command line is display aspect ratio
714 double ar = mlt_properties_get_double( properties, "aspect" );
715 AVRational rational = av_d2q( ar, 255 );
717 // Update the profile and properties as well since this is an alias
718 // for mlt properties that correspond to profile settings
719 mlt_properties_set_int( properties, "display_aspect_num", rational.num );
720 mlt_properties_set_int( properties, "display_aspect_den", rational.den );
721 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
724 profile->display_aspect_num = rational.num;
725 profile->display_aspect_den = rational.den;
726 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
729 // Now compute the sample aspect ratio
730 rational = av_d2q( ar * c->height / c->width, 255 );
731 c->sample_aspect_ratio = rational;
732 // Update the profile and properties as well since this is an alias
733 // for mlt properties that correspond to profile settings
734 mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
735 mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
738 profile->sample_aspect_num = rational.num;
739 profile->sample_aspect_den = rational.den;
740 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
745 c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
746 c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
748 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
749 st->sample_aspect_ratio = c->sample_aspect_ratio;
752 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
754 c->flags |= CODEC_FLAG_QSCALE;
755 st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
758 // Allow the user to override the video fourcc
759 if ( mlt_properties_get( properties, "vtag" ) )
762 const char *arg = mlt_properties_get( properties, "vtag" );
763 int tag = strtol( arg, &tail, 0);
765 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
769 // Some formats want stream headers to be seperate
770 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
771 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
773 // Translate these standard mlt consumer properties to ffmpeg
774 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
775 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
777 if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
778 c->flags |= CODEC_FLAG_INTERLACED_DCT;
779 if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
780 c->flags |= CODEC_FLAG_INTERLACED_ME;
783 // parse the ratecontrol override string
785 char *rc_override = mlt_properties_get( properties, "rc_override" );
786 for ( i = 0; rc_override; i++ )
789 int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
791 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Error parsing rc_override\n" );
792 c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
793 c->rc_override[i].start_frame = start;
794 c->rc_override[i].end_frame = end;
797 c->rc_override[i].qscale = q;
798 c->rc_override[i].quality_factor = 1.0;
802 c->rc_override[i].qscale = 0;
803 c->rc_override[i].quality_factor = -q / 100.0;
805 rc_override = strchr( rc_override, '/' );
809 c->rc_override_count = i;
810 if ( !c->rc_initial_buffer_occupancy )
811 c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
812 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
815 i = mlt_properties_get_int( properties, "pass" );
817 c->flags |= CODEC_FLAG_PASS1;
819 c->flags |= CODEC_FLAG_PASS2;
820 if ( codec->id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
822 char logfilename[1024];
827 snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
828 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
829 if ( c->flags & CODEC_FLAG_PASS1 )
831 f = fopen( logfilename, "w" );
833 perror( logfilename );
835 mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
839 /* read the log file */
840 f = fopen( logfilename, "r" );
847 mlt_properties_set( properties, "_logfilename", logfilename );
848 fseek( f, 0, SEEK_END );
850 fseek( f, 0, SEEK_SET );
851 logbuffer = av_malloc( size + 1 );
853 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate log buffer\n" );
856 size = fread( logbuffer, 1, size, f );
858 logbuffer[size] = '\0';
859 c->stats_in = logbuffer;
867 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for video\n" );
873 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
876 AVFrame *picture = avcodec_alloc_frame();
878 // Determine size of the
879 int size = avpicture_get_size(pix_fmt, width, height);
881 // Allocate the picture buf
882 uint8_t *picture_buf = av_malloc(size);
884 // If we have both, then fill the image
885 if ( picture != NULL && picture_buf != NULL )
887 // Fill the frame with the allocated buffer
888 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
892 // Something failed - clean up what we can
894 av_free( picture_buf );
901 static int open_video( mlt_properties properties, AVFormatContext *oc, AVStream *st, const char *codec_name )
904 AVCodecContext *video_enc = st->codec;
906 // find the video encoder
909 codec = avcodec_find_encoder_by_name( codec_name );
911 codec = avcodec_find_encoder( video_enc->codec_id );
913 #if LIBAVCODEC_VERSION_MAJOR >= 53
914 // Process properties as AVOptions on the AVCodec
915 if ( codec && codec->priv_class )
917 char *vpre = mlt_properties_get( properties, "vpre" );
918 if ( !video_enc->priv_data && codec->priv_data_size )
920 video_enc->priv_data = av_mallocz( codec->priv_data_size );
921 *(const AVClass **) video_enc->priv_data = codec->priv_class;
922 // av_opt_set_defaults( video_enc );
926 mlt_properties p = mlt_properties_load( vpre );
927 apply_properties( video_enc->priv_data, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
928 mlt_properties_close( p );
930 apply_properties( video_enc->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
934 if( codec && codec->pix_fmts )
936 const enum PixelFormat *p = codec->pix_fmts;
939 if( *p == video_enc->pix_fmt )
943 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
946 // Open the codec safely
948 int result = codec != NULL && avcodec_open( video_enc, codec ) >= 0;
954 void close_video(AVFormatContext *oc, AVStream *st)
956 if ( st && st->codec )
959 av_freep( &st->codec->stats_in );
960 avcodec_close(st->codec);
965 static inline long time_difference( struct timeval *time1 )
967 struct timeval time2;
968 gettimeofday( &time2, NULL );
969 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
972 static int mlt_write(void *h, uint8_t *buf, int size)
974 mlt_properties properties = (mlt_properties) h;
975 mlt_events_fire( properties, "avformat-write", buf, size, NULL );
979 static void write_transmitter( mlt_listener listener, mlt_properties owner, mlt_service service, void **args )
981 listener( owner, service, (uint8_t*) args[0], (int) args[1] );
985 /** The main thread - the argument is simply the consumer.
988 static void *consumer_thread( void *arg )
990 // Map the argument to the object
991 mlt_consumer consumer = arg;
993 // Get the properties
994 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
996 // Get the terminate on pause property
997 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
1000 // Determine if feed is slow (for realtime stuff)
1001 int real_time_output = mlt_properties_get_int( properties, "real_time" );
1004 struct timeval ante;
1006 // Get the frame rate
1007 double fps = mlt_properties_get_double( properties, "fps" );
1009 // Get width and height
1010 int width = mlt_properties_get_int( properties, "width" );
1011 int height = mlt_properties_get_int( properties, "height" );
1012 int img_width = width;
1013 int img_height = height;
1015 // Get default audio properties
1016 mlt_audio_format aud_fmt = mlt_audio_s16;
1017 int channels = mlt_properties_get_int( properties, "channels" );
1018 int total_channels = channels;
1019 int frequency = mlt_properties_get_int( properties, "frequency" );
1020 int16_t *pcm = NULL;
1023 // AVFormat audio buffer and frame size
1024 int audio_outbuf_size = AUDIO_BUFFER_SIZE;
1025 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
1026 int audio_input_frame_size = 0;
1028 // AVFormat video buffer and frame count
1029 int frame_count = 0;
1030 int video_outbuf_size = VIDEO_BUFFER_SIZE;
1031 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
1033 // Used for the frame properties
1034 mlt_frame frame = NULL;
1035 mlt_properties frame_properties = NULL;
1038 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
1039 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
1041 // Need two av pictures for converting
1042 AVFrame *output = NULL;
1043 AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
1045 // For receiving images from an mlt_frame
1047 mlt_image_format img_fmt = mlt_image_yuv422;
1049 // For receiving audio samples back from the fifo
1050 int16_t *audio_buf_1 = av_malloc( AUDIO_ENCODE_BUFFER_SIZE );
1051 int16_t *audio_buf_2 = NULL;
1054 // Allocate the context
1055 #if (LIBAVFORMAT_VERSION_INT >= ((52<<16)+(26<<8)+0))
1056 AVFormatContext *oc = avformat_alloc_context( );
1058 AVFormatContext *oc = av_alloc_format_context( );
1062 AVStream *video_st = NULL;
1063 AVStream *audio_st[ MAX_AUDIO_STREAMS ];
1066 double audio_pts = 0;
1067 double video_pts = 0;
1069 // Frames dispatched
1070 long int frames = 0;
1071 long int total_time = 0;
1073 // Determine the format
1074 AVOutputFormat *fmt = NULL;
1075 const char *filename = mlt_properties_get( properties, "target" );
1076 char *format = mlt_properties_get( properties, "f" );
1077 char *vcodec = mlt_properties_get( properties, "vcodec" );
1078 char *acodec = mlt_properties_get( properties, "acodec" );
1079 AVCodec *audio_codec = NULL;
1080 AVCodec *video_codec = NULL;
1082 // Used to store and override codec ids
1088 mlt_properties frame_meta_properties = mlt_properties_new();
1090 // Initialize audio_st
1091 int i = MAX_AUDIO_STREAMS;
1095 // Check for user selected format first
1096 if ( format != NULL )
1097 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1098 fmt = guess_format( format, NULL, NULL );
1100 fmt = av_guess_format( format, NULL, NULL );
1103 // Otherwise check on the filename
1104 if ( fmt == NULL && filename != NULL )
1105 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1106 fmt = guess_format( NULL, filename, NULL );
1108 fmt = av_guess_format( NULL, filename, NULL );
1111 // Otherwise default to mpeg
1113 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1114 fmt = guess_format( "mpeg", NULL, NULL );
1116 fmt = av_guess_format( "mpeg", NULL, NULL );
1119 // We need a filename - default to stdout?
1120 if ( filename == NULL || !strcmp( filename, "" ) )
1123 // Get the codec ids selected
1124 audio_codec_id = fmt->audio_codec;
1125 video_codec_id = fmt->video_codec;
1127 // Check for audio codec overides
1128 if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
1129 audio_codec_id = CODEC_ID_NONE;
1132 audio_codec = avcodec_find_encoder_by_name( acodec );
1135 audio_codec_id = audio_codec->id;
1136 if ( audio_codec_id == CODEC_ID_AC3 && avcodec_find_encoder_by_name( "ac3_fixed" ) )
1138 mlt_properties_set( properties, "_acodec", "ac3_fixed" );
1139 acodec = mlt_properties_get( properties, "_acodec" );
1140 audio_codec = avcodec_find_encoder_by_name( acodec );
1145 audio_codec_id = CODEC_ID_NONE;
1146 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "audio codec %s unrecognised - ignoring\n", acodec );
1151 audio_codec = avcodec_find_encoder( audio_codec_id );
1154 // Check for video codec overides
1155 if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
1156 video_codec_id = CODEC_ID_NONE;
1159 video_codec = avcodec_find_encoder_by_name( vcodec );
1162 video_codec_id = video_codec->id;
1166 video_codec_id = CODEC_ID_NONE;
1167 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "video codec %s unrecognised - ignoring\n", vcodec );
1172 video_codec = avcodec_find_encoder( video_codec_id );
1176 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
1177 for ( i = 0; i < mlt_properties_count( properties ); i++ )
1179 char *name = mlt_properties_get_name( properties, i );
1180 if ( name && !strncmp( name, "meta.attr.", 10 ) )
1182 char *key = strdup( name + 10 );
1183 char *markup = strrchr( key, '.' );
1184 if ( markup && !strcmp( markup, ".markup") )
1187 if ( !strstr( key, ".stream." ) )
1188 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
1189 av_metadata_set2( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1191 av_metadata_set( &oc->metadata, key, mlt_properties_get_value( properties, i ) );
1201 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
1202 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
1204 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
1205 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
1207 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
1208 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
1210 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
1211 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
1213 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
1214 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
1216 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
1217 if (metavalue != 0) oc->year = metavalue;
1219 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
1220 if (metavalue != 0) oc->track = metavalue;
1224 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
1226 // Get a frame now, so we can set some AVOptions from properties.
1227 frame = mlt_consumer_rt_frame( consumer );
1229 // Set the timecode from the MLT metadata if available.
1230 const char *timecode = mlt_properties_get( MLT_FRAME_PROPERTIES(frame), "meta.attr.vitc.markup" );
1231 if ( timecode && strcmp( timecode, "" ) )
1233 mlt_properties_set( properties, "timecode", timecode );
1234 if ( strchr( timecode, ';' ) )
1235 mlt_properties_set_int( properties, "drop_frame_timecode", 1 );
1238 // Add audio and video streams
1239 if ( video_codec_id != CODEC_ID_NONE )
1240 video_st = add_video_stream( consumer, oc, video_codec );
1241 if ( audio_codec_id != CODEC_ID_NONE )
1247 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
1249 sprintf( key, "channels.%d", i );
1250 int j = mlt_properties_get_int( properties, key );
1254 total_channels += j;
1255 audio_st[i] = add_audio_stream( consumer, oc, audio_codec, j );
1261 audio_st[0] = add_audio_stream( consumer, oc, audio_codec, channels );
1262 total_channels = channels;
1265 mlt_properties_set_int( properties, "channels", total_channels );
1267 // Set the parameters (even though we have none...)
1268 if ( av_set_parameters(oc, NULL) >= 0 )
1270 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
1271 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
1273 // Process properties as AVOptions
1274 char *fpre = mlt_properties_get( properties, "fpre" );
1277 mlt_properties p = mlt_properties_load( fpre );
1278 apply_properties( oc, p, AV_OPT_FLAG_ENCODING_PARAM );
1279 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1280 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1281 apply_properties( oc->priv_data, p, AV_OPT_FLAG_ENCODING_PARAM );
1283 mlt_properties_close( p );
1285 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
1286 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1287 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1288 apply_properties( oc->priv_data, properties, AV_OPT_FLAG_ENCODING_PARAM );
1291 if ( video_st && !open_video( properties, oc, video_st, vcodec? vcodec : NULL ) )
1293 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1295 audio_input_frame_size = open_audio( properties, oc, audio_st[i], audio_outbuf_size,
1296 acodec? acodec : NULL );
1297 if ( !audio_input_frame_size )
1301 // Setup custom I/O if redirecting
1302 if ( mlt_properties_get_int( properties, "redirect" ) )
1304 int buffer_size = 32768;
1305 unsigned char *buffer = av_malloc( buffer_size );
1306 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1307 AVIOContext* io = avio_alloc_context( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1309 ByteIOContext* io = av_alloc_put_byte( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1314 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1315 oc->flags |= AVFMT_FLAG_CUSTOM_IO;
1317 mlt_properties_set_data( properties, "avio_buffer", buffer, buffer_size, av_free, NULL );
1318 mlt_properties_set_data( properties, "avio_context", io, 0, av_free, NULL );
1319 mlt_events_register( properties, "avformat-write", (mlt_transmitter) write_transmitter );
1324 mlt_log_error( MLT_CONSUMER_SERVICE(consumer), "failed to setup output redirection\n" );
1327 // Open the output file, if needed
1328 else if ( !( fmt->flags & AVFMT_NOFILE ) )
1330 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1331 if ( avio_open( &oc->pb, filename, AVIO_FLAG_WRITE ) < 0 )
1333 if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
1336 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not open '%s'\n", filename );
1337 mlt_properties_set_int( properties, "running", 0 );
1341 // Write the stream header.
1342 if ( mlt_properties_get_int( properties, "running" ) )
1343 av_write_header( oc );
1347 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Invalid output format parameters\n" );
1348 mlt_properties_set_int( properties, "running", 0 );
1353 output = alloc_picture( video_st->codec->pix_fmt, width, height );
1355 // Last check - need at least one stream
1356 if ( !audio_st[0] && !video_st )
1357 mlt_properties_set_int( properties, "running", 0 );
1359 // Get the starting time (can ignore the times above)
1360 gettimeofday( &ante, NULL );
1362 // Loop while running
1363 while( mlt_properties_get_int( properties, "running" ) &&
1364 ( !terminated || ( video_st && mlt_deque_count( queue ) ) ) )
1367 frame = mlt_consumer_rt_frame( consumer );
1369 // Check that we have a frame to work with
1370 if ( frame != NULL )
1372 // Increment frames dispatched
1375 // Default audio args
1376 frame_properties = MLT_FRAME_PROPERTIES( frame );
1378 // Check for the terminated condition
1379 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1381 // Get audio and append to the fifo
1382 if ( !terminated && audio_st[0] )
1384 samples = mlt_sample_calculator( fps, frequency, count ++ );
1385 channels = total_channels;
1386 mlt_frame_get_audio( frame, (void**) &pcm, &aud_fmt, &frequency, &channels, &samples );
1388 // Save the audio channel remap properties for later
1389 mlt_properties_pass( frame_meta_properties, frame_properties, "meta.map.audio." );
1391 // Create the fifo if we don't have one
1394 fifo = sample_fifo_init( frequency, channels );
1395 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1398 // Silence if not normal forward speed
1399 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1400 memset( pcm, 0, samples * channels * 2 );
1402 // Append the samples
1403 sample_fifo_append( fifo, pcm, samples * channels );
1404 total_time += ( samples * 1000000 ) / frequency;
1407 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1411 if ( !terminated && video_st )
1412 mlt_deque_push_back( queue, frame );
1414 mlt_frame_close( frame );
1418 // While we have stuff to process, process...
1421 // Write interleaved audio and video frames
1422 if ( !video_st || ( video_st && audio_st[0] && audio_pts < video_pts ) )
1425 if ( ( video_st && terminated ) || ( channels * audio_input_frame_size ) < sample_fifo_used( fifo ) )
1427 int j = 0; // channel offset into interleaved source buffer
1428 int n = FFMIN( FFMIN( channels * audio_input_frame_size, sample_fifo_used( fifo ) ), AUDIO_ENCODE_BUFFER_SIZE );
1430 // Get the audio samples
1433 sample_fifo_fetch( fifo, audio_buf_1, n );
1435 else if ( audio_codec_id == CODEC_ID_VORBIS && terminated )
1437 // This prevents an infinite loop when some versions of vorbis do not
1438 // increment pts when encoding silence.
1439 audio_pts = video_pts;
1444 memset( audio_buf_1, 0, AUDIO_ENCODE_BUFFER_SIZE );
1446 samples = n / channels;
1448 // For each output stream
1449 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i] && j < total_channels; i++ )
1451 AVStream *stream = audio_st[i];
1452 AVCodecContext *codec = stream->codec;
1455 av_init_packet( &pkt );
1457 // Optimized for single track and no channel remap
1458 if ( !audio_st[1] && !mlt_properties_count( frame_meta_properties ) )
1460 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, audio_buf_1 );
1464 // Extract the audio channels according to channel mapping
1465 int dest_offset = 0; // channel offset into interleaved dest buffer
1467 // Get the number of channels for this stream
1468 sprintf( key, "channels.%d", i );
1469 int current_channels = mlt_properties_get_int( properties, key );
1471 // Clear the destination audio buffer.
1473 audio_buf_2 = av_mallocz( AUDIO_ENCODE_BUFFER_SIZE );
1475 memset( audio_buf_2, 0, AUDIO_ENCODE_BUFFER_SIZE );
1477 // For each output channel
1478 while ( dest_offset < current_channels && j < total_channels )
1480 int map_start = -1, map_channels = 0;
1481 int source_offset = 0;
1484 // Look for a mapping that starts at j
1485 for ( k = 0; k < (MAX_AUDIO_STREAMS * 2) && map_start != j; k++ )
1487 sprintf( key, "%d.channels", k );
1488 map_channels = mlt_properties_get_int( frame_meta_properties, key );
1489 sprintf( key, "%d.start", k );
1490 if ( mlt_properties_get( frame_meta_properties, key ) )
1491 map_start = mlt_properties_get_int( frame_meta_properties, key );
1492 if ( map_start != j )
1493 source_offset += map_channels;
1497 if ( map_start != j )
1499 map_channels = current_channels;
1503 // Copy samples if source offset valid
1504 if ( source_offset < channels )
1506 // Interleave the audio buffer with the # channels for this stream/mapping.
1507 for ( k = 0; k < map_channels; k++, j++, source_offset++, dest_offset++ )
1509 int16_t *src = audio_buf_1 + source_offset;
1510 int16_t *dest = audio_buf_2 + dest_offset;
1511 int s = samples + 1;
1515 dest += current_channels;
1520 // Otherwise silence
1523 j += current_channels;
1524 dest_offset += current_channels;
1527 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, audio_buf_2 );
1530 // Write the compressed frame in the media file
1531 if ( codec->coded_frame && codec->coded_frame->pts != AV_NOPTS_VALUE )
1533 pkt.pts = av_rescale_q( codec->coded_frame->pts, codec->time_base, stream->time_base );
1534 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio stream %d pkt pts %"PRId64" frame pts %"PRId64,
1535 stream->index, pkt.pts, codec->coded_frame->pts );
1537 pkt.flags |= PKT_FLAG_KEY;
1538 pkt.stream_index = stream->index;
1539 pkt.data = audio_outbuf;
1543 if ( av_interleaved_write_frame( oc, &pkt ) )
1545 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing audio frame\n" );
1546 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1547 goto on_fatal_error;
1551 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", codec->frame_size );
1554 audio_pts = (double)stream->pts.val * av_q2d( stream->time_base );
1563 else if ( video_st )
1566 if ( mlt_deque_count( queue ) )
1568 int out_size, ret = 0;
1571 frame = mlt_deque_pop_front( queue );
1572 frame_properties = MLT_FRAME_PROPERTIES( frame );
1574 c = video_st->codec;
1576 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1582 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1586 // Convert the mlt frame to an AVPicture
1587 for ( i = 0; i < height; i ++ )
1589 p = input->data[ 0 ] + i * input->linesize[ 0 ];
1590 memcpy( p, q, width * 2 );
1594 // Do the colour space conversion
1596 int flags = SWS_BILINEAR;
1598 flags |= SWS_CPU_CAPS_MMX;
1601 flags |= SWS_CPU_CAPS_MMX2;
1603 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1604 width, height, video_st->codec->pix_fmt, flags, NULL, NULL, NULL);
1605 sws_scale( context, (const uint8_t* const*) input->data, input->linesize, 0, height,
1606 output->data, output->linesize);
1607 sws_freeContext( context );
1609 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1612 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1614 // Apply the alpha if applicable
1615 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1617 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1620 for ( i = 0; i < height; i ++ )
1622 n = ( width + 7 ) / 8;
1623 p = output->data[ 0 ] + i * output->linesize[ 0 ] + 3;
1627 case 0: do { *p = *alpha++; p += 4;
1628 case 7: *p = *alpha++; p += 4;
1629 case 6: *p = *alpha++; p += 4;
1630 case 5: *p = *alpha++; p += 4;
1631 case 4: *p = *alpha++; p += 4;
1632 case 3: *p = *alpha++; p += 4;
1633 case 2: *p = *alpha++; p += 4;
1634 case 1: *p = *alpha++; p += 4;
1642 if (oc->oformat->flags & AVFMT_RAWPICTURE)
1644 // raw video case. The API will change slightly in the near future for that
1646 av_init_packet(&pkt);
1648 pkt.flags |= PKT_FLAG_KEY;
1649 pkt.stream_index= video_st->index;
1650 pkt.data= (uint8_t *)output;
1651 pkt.size= sizeof(AVPicture);
1653 ret = av_write_frame(oc, &pkt);
1654 video_pts += c->frame_size;
1659 output->quality = video_st->quality;
1661 // Set frame interlace hints
1662 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1663 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1664 output->pts = frame_count;
1667 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1669 // If zero size, it means the image was buffered
1673 av_init_packet( &pkt );
1675 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1676 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1677 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pkt pts %"PRId64" frame pts %"PRId64, pkt.pts, c->coded_frame->pts );
1678 if( c->coded_frame && c->coded_frame->key_frame )
1679 pkt.flags |= PKT_FLAG_KEY;
1680 pkt.stream_index= video_st->index;
1681 pkt.data= video_outbuf;
1684 // write the compressed frame in the media file
1685 ret = av_interleaved_write_frame(oc, &pkt);
1686 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", c->frame_size );
1687 video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1689 // Dual pass logging
1690 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1691 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1693 else if ( out_size < 0 )
1695 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with video encode %d\n", frame_count );
1701 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing video frame\n" );
1702 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1703 goto on_fatal_error;
1705 mlt_frame_close( frame );
1714 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio pts %"PRId64" (%f) ", audio_st[0]->pts.val, audio_pts );
1716 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pts %"PRId64" (%f) ", video_st->pts.val, video_pts );
1717 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "\n" );
1720 if ( real_time_output == 1 && frames % 2 == 0 )
1722 long passed = time_difference( &ante );
1725 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1728 if ( passed < total_time )
1730 long total = ( total_time - passed );
1731 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1732 nanosleep( &t, NULL );
1737 // Flush the encoder buffers
1738 if ( real_time_output <= 0 )
1741 // TODO: flush all audio streams
1742 if ( audio_st[0] && audio_st[0]->codec->frame_size > 1 ) for (;;)
1744 AVCodecContext *c = audio_st[0]->codec;
1746 av_init_packet( &pkt );
1749 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1750 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1752 sample_fifo_fetch( fifo, audio_buf_1, channels * audio_input_frame_size );
1753 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, audio_buf_1 );
1755 if ( pkt.size <= 0 )
1756 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1757 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
1758 if ( pkt.size <= 0 )
1761 // Write the compressed frame in the media file
1762 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1763 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st[0]->time_base );
1764 pkt.flags |= PKT_FLAG_KEY;
1765 pkt.stream_index = audio_st[0]->index;
1766 pkt.data = audio_outbuf;
1767 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1769 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing flushed audio frame\n" );
1770 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1771 goto on_fatal_error;
1776 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1778 AVCodecContext *c = video_st->codec;
1780 av_init_packet( &pkt );
1783 pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1784 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing video size %d\n", pkt.size );
1785 if ( pkt.size <= 0 )
1788 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1789 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1790 if( c->coded_frame && c->coded_frame->key_frame )
1791 pkt.flags |= PKT_FLAG_KEY;
1792 pkt.stream_index = video_st->index;
1793 pkt.data = video_outbuf;
1795 // write the compressed frame in the media file
1796 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1798 mlt_log_fatal( MLT_CONSUMER_SERVICE(consumer), "error writing flushed video frame\n" );
1799 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1800 goto on_fatal_error;
1802 // Dual pass logging
1803 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1804 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1810 // Write the trailer, if any
1811 av_write_trailer( oc );
1815 close_video(oc, video_st);
1816 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1817 close_audio( oc, audio_st[i] );
1820 for ( i = 0; i < oc->nb_streams; i++ )
1821 av_freep( &oc->streams[i] );
1823 // Close the output file
1824 if ( !( fmt->flags & AVFMT_NOFILE ) )
1826 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1827 if ( !mlt_properties_get_int( properties, "redirect" ) )
1828 avio_close( oc->pb );
1829 #elif LIBAVFORMAT_VERSION_MAJOR >= 52
1830 url_fclose( oc->pb );
1832 url_fclose( &oc->pb );
1836 // Clean up input and output frames
1838 av_free( output->data[0] );
1840 av_free( input->data[0] );
1842 av_free( video_outbuf );
1843 av_free( audio_buf_1 );
1844 av_free( audio_buf_2 );
1849 // Just in case we terminated on pause
1850 mlt_properties_set_int( properties, "running", 0 );
1852 mlt_consumer_stopped( consumer );
1853 mlt_properties_close( frame_meta_properties );
1855 if ( mlt_properties_get_int( properties, "pass" ) > 1 )
1857 // Remove the dual pass log file
1858 if ( mlt_properties_get( properties, "_logfilename" ) )
1859 remove( mlt_properties_get( properties, "_logfilename" ) );
1861 // Remove the x264 dual pass logs
1862 char *cwd = getcwd( NULL, 0 );
1863 const char *file = "x264_2pass.log";
1864 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1865 sprintf( full, "%s/%s", cwd, file );
1868 file = "x264_2pass.log.temp";
1869 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1870 sprintf( full, "%s/%s", cwd, file );
1873 file = "x264_2pass.log.mbtree";
1874 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1875 sprintf( full, "%s/%s", cwd, file );
1879 remove( "x264_2pass.log.temp" );
1882 while ( ( frame = mlt_deque_pop_back( queue ) ) )
1883 mlt_frame_close( frame );
1888 /** Close the consumer.
1891 static void consumer_close( mlt_consumer consumer )
1893 // Stop the consumer
1894 mlt_consumer_stop( consumer );
1897 mlt_consumer_close( consumer );