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>
41 #include <libswscale/swscale.h>
43 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
44 #include <libavutil/pixdesc.h>
47 #if LIBAVUTIL_VERSION_INT < (50<<16)
48 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
49 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
52 #if LIBAVCODEC_VERSION_MAJOR > 52
53 #include <libavutil/opt.h>
54 #define CODEC_TYPE_VIDEO AVMEDIA_TYPE_VIDEO
55 #define CODEC_TYPE_AUDIO AVMEDIA_TYPE_AUDIO
56 #define PKT_FLAG_KEY AV_PKT_FLAG_KEY
58 #include <libavcodec/opt.h>
61 #define MAX_AUDIO_STREAMS (8)
62 #define AUDIO_ENCODE_BUFFER_SIZE (48000 * 2 * MAX_AUDIO_STREAMS)
63 #define AUDIO_BUFFER_SIZE (1024 * 42)
64 #define VIDEO_BUFFER_SIZE (2048 * 1024)
66 void avformat_lock( );
67 void avformat_unlock( );
70 // This structure should be extended and made globally available in mlt
82 *sample_fifo, sample_fifo_s;
84 sample_fifo sample_fifo_init( int frequency, int channels )
86 sample_fifo fifo = calloc( 1, sizeof( sample_fifo_s ) );
87 fifo->frequency = frequency;
88 fifo->channels = channels;
92 // sample_fifo_clear and check are temporarily aborted (not working as intended)
94 void sample_fifo_clear( sample_fifo fifo, double time )
96 int words = ( float )( time - fifo->time ) * fifo->frequency * fifo->channels;
97 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )fifo->time * 100 ) && fifo->used > words && words > 0 )
99 memmove( fifo->buffer, &fifo->buffer[ words ], ( fifo->used - words ) * sizeof( int16_t ) );
103 else if ( ( int )( ( float )time * 100 ) != ( int )( ( float )fifo->time * 100 ) )
110 void sample_fifo_check( sample_fifo fifo, double time )
112 if ( fifo->used == 0 )
114 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )fifo->time * 100 ) )
119 void sample_fifo_append( sample_fifo fifo, int16_t *samples, int count )
121 if ( ( fifo->size - fifo->used ) < count )
123 fifo->size += count * 5;
124 fifo->buffer = realloc( fifo->buffer, fifo->size * sizeof( int16_t ) );
127 memcpy( &fifo->buffer[ fifo->used ], samples, count * sizeof( int16_t ) );
131 int sample_fifo_used( sample_fifo fifo )
136 int sample_fifo_fetch( sample_fifo fifo, int16_t *samples, int count )
138 if ( count > fifo->used )
141 memcpy( samples, fifo->buffer, count * sizeof( int16_t ) );
143 memmove( fifo->buffer, &fifo->buffer[ count ], fifo->used * sizeof( int16_t ) );
145 fifo->time += ( double )count / fifo->channels / fifo->frequency;
150 void sample_fifo_close( sample_fifo fifo )
152 free( fifo->buffer );
156 // Forward references.
157 static int consumer_start( mlt_consumer consumer );
158 static int consumer_stop( mlt_consumer consumer );
159 static int consumer_is_stopped( mlt_consumer consumer );
160 static void *consumer_thread( void *arg );
161 static void consumer_close( mlt_consumer consumer );
163 /** Initialise the consumer.
166 mlt_consumer consumer_avformat_init( mlt_profile profile, char *arg )
168 // Allocate the consumer
169 mlt_consumer consumer = mlt_consumer_new( profile );
171 // If memory allocated and initialises without error
172 if ( consumer != NULL )
174 // Get properties from the consumer
175 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
177 // Assign close callback
178 consumer->close = consumer_close;
180 // Interpret the argument
182 mlt_properties_set( properties, "target", arg );
184 // sample and frame queue
185 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
187 // Audio options not fully handled by AVOptions
188 #define QSCALE_NONE (-99999)
189 mlt_properties_set_int( properties, "aq", QSCALE_NONE );
191 // Video options not fully handled by AVOptions
192 mlt_properties_set_int( properties, "dc", 8 );
194 // Muxer options not fully handled by AVOptions
195 mlt_properties_set_double( properties, "muxdelay", 0.7 );
196 mlt_properties_set_double( properties, "muxpreload", 0.5 );
198 // Ensure termination at end of the stream
199 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
201 // Default to separate processing threads for producer and consumer with no frame dropping!
202 mlt_properties_set_int( properties, "real_time", -1 );
203 mlt_properties_set_int( properties, "prefill", 1 );
205 // Set up start/stop/terminated callbacks
206 consumer->start = consumer_start;
207 consumer->stop = consumer_stop;
208 consumer->is_stopped = consumer_is_stopped;
210 mlt_events_register( properties, "consumer-fatal-error", NULL );
217 /** Start the consumer.
220 static int consumer_start( mlt_consumer consumer )
222 // Get the properties
223 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
226 // Report information about available muxers and codecs as YAML Tiny
227 char *s = mlt_properties_get( properties, "f" );
228 if ( s && strcmp( s, "list" ) == 0 )
230 mlt_properties doc = mlt_properties_new();
231 mlt_properties formats = mlt_properties_new();
233 AVOutputFormat *format = NULL;
235 mlt_properties_set_data( properties, "f", formats, 0, (mlt_destructor) mlt_properties_close, NULL );
236 mlt_properties_set_data( doc, "formats", formats, 0, NULL, NULL );
237 while ( ( format = av_oformat_next( format ) ) )
239 snprintf( key, sizeof(key), "%d", mlt_properties_count( formats ) );
240 mlt_properties_set( formats, key, format->name );
242 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
243 mlt_properties_close( doc );
246 s = mlt_properties_get( properties, "acodec" );
247 if ( s && strcmp( s, "list" ) == 0 )
249 mlt_properties doc = mlt_properties_new();
250 mlt_properties codecs = mlt_properties_new();
252 AVCodec *codec = NULL;
254 mlt_properties_set_data( properties, "acodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
255 mlt_properties_set_data( doc, "audio_codecs", codecs, 0, NULL, NULL );
256 while ( ( codec = av_codec_next( codec ) ) )
257 if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
259 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
260 mlt_properties_set( codecs, key, codec->name );
262 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
263 mlt_properties_close( doc );
266 s = mlt_properties_get( properties, "vcodec" );
267 if ( s && strcmp( s, "list" ) == 0 )
269 mlt_properties doc = mlt_properties_new();
270 mlt_properties codecs = mlt_properties_new();
272 AVCodec *codec = NULL;
274 mlt_properties_set_data( properties, "vcodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
275 mlt_properties_set_data( doc, "video_codecs", codecs, 0, NULL, NULL );
276 while ( ( codec = av_codec_next( codec ) ) )
277 if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
279 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
280 mlt_properties_set( codecs, key, codec->name );
282 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
283 mlt_properties_close( doc );
287 // Check that we're not already running
288 if ( !error && !mlt_properties_get_int( properties, "running" ) )
291 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
293 // Get the width and height
294 int width = mlt_properties_get_int( properties, "width" );
295 int height = mlt_properties_get_int( properties, "height" );
297 // Obtain the size property
298 char *size = mlt_properties_get( properties, "s" );
304 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
311 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Invalid size property %s - ignoring.\n", size );
315 // Now ensure we honour the multiple of two requested by libavformat
316 width = ( width / 2 ) * 2;
317 height = ( height / 2 ) * 2;
318 mlt_properties_set_int( properties, "width", width );
319 mlt_properties_set_int( properties, "height", height );
321 // We need to set these on the profile as well because the s property is
322 // an alias to mlt properties that correspond to profile settings.
323 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
326 profile->width = width;
327 profile->height = height;
330 // Handle the ffmpeg command line "-r" property for frame rate
331 if ( mlt_properties_get( properties, "r" ) )
333 double frame_rate = mlt_properties_get_double( properties, "r" );
334 AVRational rational = av_d2q( frame_rate, 255 );
335 mlt_properties_set_int( properties, "frame_rate_num", rational.num );
336 mlt_properties_set_int( properties, "frame_rate_den", rational.den );
339 profile->frame_rate_num = rational.num;
340 profile->frame_rate_den = rational.den;
341 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
345 // Apply AVOptions that are synonyms for standard mlt_consumer options
346 if ( mlt_properties_get( properties, "ac" ) )
347 mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
348 if ( mlt_properties_get( properties, "ar" ) )
349 mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
351 // Assign the thread to properties
352 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
354 // Set the running state
355 mlt_properties_set_int( properties, "running", 1 );
358 pthread_create( thread, NULL, consumer_thread, consumer );
363 /** Stop the consumer.
366 static int consumer_stop( mlt_consumer consumer )
368 // Get the properties
369 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
371 // Check that we're running
372 if ( mlt_properties_get_int( properties, "running" ) )
375 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
378 mlt_properties_set_int( properties, "running", 0 );
380 // Wait for termination
381 pthread_join( *thread, NULL );
387 /** Determine if the consumer is stopped.
390 static int consumer_is_stopped( mlt_consumer consumer )
392 // Get the properties
393 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
394 return !mlt_properties_get_int( properties, "running" );
397 /** Process properties as AVOptions and apply to AV context obj
400 static void apply_properties( void *obj, mlt_properties properties, int flags )
403 int count = mlt_properties_count( properties );
406 for ( i = 0; i < count; i++ )
408 const char *opt_name = mlt_properties_get_name( properties, i );
409 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
412 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
413 av_set_string3( obj, opt_name, mlt_properties_get_value( properties, i), alloc, NULL );
414 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
415 av_set_string2( obj, opt_name, mlt_properties_get_value( properties, i), alloc );
417 av_set_string( obj, opt_name, mlt_properties_get_value( properties, i) );
422 /** Add an audio output stream
425 static AVStream *add_audio_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec, int channels )
427 // Get the properties
428 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
430 // Create a new stream
431 AVStream *st = av_new_stream( oc, oc->nb_streams );
433 // If created, then initialise from properties
436 AVCodecContext *c = st->codec;
438 // Establish defaults from AVOptions
439 #if LIBAVCODEC_VERSION_MAJOR >= 53
440 avcodec_get_context_defaults3( c, codec );
442 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
445 c->codec_id = codec->id;
446 c->codec_type = CODEC_TYPE_AUDIO;
447 c->sample_fmt = SAMPLE_FMT_S16;
449 #if 0 // disabled until some audio codecs are multi-threaded
450 // Setup multi-threading
451 int thread_count = mlt_properties_get_int( properties, "threads" );
452 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
453 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
454 if ( thread_count > 1 )
455 c->thread_count = thread_count;
458 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
459 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
461 // Allow the user to override the audio fourcc
462 if ( mlt_properties_get( properties, "atag" ) )
465 char *arg = mlt_properties_get( properties, "atag" );
466 int tag = strtol( arg, &tail, 0);
468 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
472 // Process properties as AVOptions
473 char *apre = mlt_properties_get( properties, "apre" );
476 mlt_properties p = mlt_properties_load( apre );
477 apply_properties( c, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
478 mlt_properties_close( p );
480 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
482 int audio_qscale = mlt_properties_get_int( properties, "aq" );
483 if ( audio_qscale > QSCALE_NONE )
485 c->flags |= CODEC_FLAG_QSCALE;
486 c->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
489 // Set parameters controlled by MLT
490 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
491 c->time_base = ( AVRational ){ 1, c->sample_rate };
492 c->channels = channels;
494 if ( mlt_properties_get( properties, "alang" ) != NULL )
495 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
496 av_metadata_set2( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
499 strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
504 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for audio\n" );
510 static int open_audio( mlt_properties properties, AVFormatContext *oc, AVStream *st, int audio_outbuf_size, const char *codec_name )
512 // We will return the audio input size from here
513 int audio_input_frame_size = 0;
516 AVCodecContext *c = st->codec;
521 codec = avcodec_find_encoder_by_name( codec_name );
523 codec = avcodec_find_encoder( c->codec_id );
525 #if LIBAVCODEC_VERSION_MAJOR > 52
526 // Process properties as AVOptions on the AVCodec
527 if ( codec && codec->priv_class )
529 char *apre = mlt_properties_get( properties, "apre" );
530 if ( !c->priv_data && codec->priv_data_size )
532 c->priv_data = av_mallocz( codec->priv_data_size );
533 *(const AVClass **) c->priv_data = codec->priv_class;
534 // av_opt_set_defaults( c );
538 mlt_properties p = mlt_properties_load( apre );
539 apply_properties( c->priv_data, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
540 mlt_properties_close( p );
542 apply_properties( c->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
548 // Continue if codec found and we can open it
549 if ( codec != NULL && avcodec_open( c, codec ) >= 0 )
551 // ugly hack for PCM codecs (will be removed ASAP with new PCM
552 // support to compute the input frame size in samples
553 if ( c->frame_size <= 1 )
555 audio_input_frame_size = audio_outbuf_size / c->channels;
556 switch(st->codec->codec_id)
558 case CODEC_ID_PCM_S16LE:
559 case CODEC_ID_PCM_S16BE:
560 case CODEC_ID_PCM_U16LE:
561 case CODEC_ID_PCM_U16BE:
562 audio_input_frame_size >>= 1;
570 audio_input_frame_size = c->frame_size;
573 // Some formats want stream headers to be seperate (hmm)
574 if ( !strcmp( oc->oformat->name, "mp4" ) ||
575 !strcmp( oc->oformat->name, "mov" ) ||
576 !strcmp( oc->oformat->name, "3gp" ) )
577 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
581 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
586 return audio_input_frame_size;
589 static void close_audio( AVFormatContext *oc, AVStream *st )
591 if ( st && st->codec )
594 avcodec_close( st->codec );
599 /** Add a video output stream
602 static AVStream *add_video_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec )
604 // Get the properties
605 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
607 // Create a new stream
608 AVStream *st = av_new_stream( oc, oc->nb_streams );
612 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
613 AVCodecContext *c = st->codec;
615 // Establish defaults from AVOptions
616 #if LIBAVCODEC_VERSION_MAJOR >= 53
617 avcodec_get_context_defaults3( c, codec );
619 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
622 c->codec_id = codec->id;
623 c->codec_type = CODEC_TYPE_VIDEO;
625 // Setup multi-threading
626 int thread_count = mlt_properties_get_int( properties, "threads" );
627 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
628 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
629 if ( thread_count > 1 )
630 c->thread_count = thread_count;
632 // Process properties as AVOptions
633 char *vpre = mlt_properties_get( properties, "vpre" );
636 mlt_properties p = mlt_properties_load( vpre );
638 if ( mlt_properties_count( p ) < 1 )
640 AVCodec *codec = avcodec_find_encoder( c->codec_id );
643 char *path = malloc( strlen(AVDATADIR) + strlen(codec->name) + strlen(vpre) + strlen(".ffpreset") + 2 );
644 strcpy( path, AVDATADIR );
645 strcat( path, codec->name );
647 strcat( path, vpre );
648 strcat( path, ".ffpreset" );
650 mlt_properties_close( p );
651 p = mlt_properties_load( path );
652 if ( mlt_properties_count( p ) > 0 )
653 mlt_properties_debug( p, path, stderr );
659 mlt_properties_debug( p, vpre, stderr );
662 apply_properties( c, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
663 mlt_properties_close( p );
665 int colorspace = mlt_properties_get_int( properties, "colorspace" );
666 mlt_properties_set( properties, "colorspace", NULL );
667 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
668 mlt_properties_set_int( properties, "colorspace", colorspace );
670 // Set options controlled by MLT
671 c->width = mlt_properties_get_int( properties, "width" );
672 c->height = mlt_properties_get_int( properties, "height" );
673 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
674 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
675 if ( st->time_base.den == 0 )
676 st->time_base = c->time_base;
677 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
678 c->pix_fmt = pix_fmt ? av_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
680 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
683 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
684 switch ( colorspace )
687 c->colorspace = AVCOL_SPC_SMPTE170M;
690 c->colorspace = AVCOL_SPC_SMPTE240M;
693 c->colorspace = AVCOL_SPC_BT470BG;
696 c->colorspace = ( 576 % c->height ) ? AVCOL_SPC_SMPTE170M : AVCOL_SPC_BT470BG;
699 c->colorspace = AVCOL_SPC_BT709;
704 if ( mlt_properties_get( properties, "aspect" ) )
706 // "-aspect" on ffmpeg command line is display aspect ratio
707 double ar = mlt_properties_get_double( properties, "aspect" );
708 AVRational rational = av_d2q( ar, 255 );
710 // Update the profile and properties as well since this is an alias
711 // for mlt properties that correspond to profile settings
712 mlt_properties_set_int( properties, "display_aspect_num", rational.num );
713 mlt_properties_set_int( properties, "display_aspect_den", rational.den );
714 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
717 profile->display_aspect_num = rational.num;
718 profile->display_aspect_den = rational.den;
719 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
722 // Now compute the sample aspect ratio
723 rational = av_d2q( ar * c->height / c->width, 255 );
724 c->sample_aspect_ratio = rational;
725 // Update the profile and properties as well since this is an alias
726 // for mlt properties that correspond to profile settings
727 mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
728 mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
731 profile->sample_aspect_num = rational.num;
732 profile->sample_aspect_den = rational.den;
733 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
738 c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
739 c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
741 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
742 st->sample_aspect_ratio = c->sample_aspect_ratio;
745 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
747 c->flags |= CODEC_FLAG_QSCALE;
748 st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
751 // Allow the user to override the video fourcc
752 if ( mlt_properties_get( properties, "vtag" ) )
755 const char *arg = mlt_properties_get( properties, "vtag" );
756 int tag = strtol( arg, &tail, 0);
758 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
762 // Some formats want stream headers to be seperate
763 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
764 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
766 // Translate these standard mlt consumer properties to ffmpeg
767 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
768 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
770 if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
771 c->flags |= CODEC_FLAG_INTERLACED_DCT;
772 if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
773 c->flags |= CODEC_FLAG_INTERLACED_ME;
776 // parse the ratecontrol override string
778 char *rc_override = mlt_properties_get( properties, "rc_override" );
779 for ( i = 0; rc_override; i++ )
782 int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
784 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Error parsing rc_override\n" );
785 c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
786 c->rc_override[i].start_frame = start;
787 c->rc_override[i].end_frame = end;
790 c->rc_override[i].qscale = q;
791 c->rc_override[i].quality_factor = 1.0;
795 c->rc_override[i].qscale = 0;
796 c->rc_override[i].quality_factor = -q / 100.0;
798 rc_override = strchr( rc_override, '/' );
802 c->rc_override_count = i;
803 if ( !c->rc_initial_buffer_occupancy )
804 c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
805 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
808 i = mlt_properties_get_int( properties, "pass" );
810 c->flags |= CODEC_FLAG_PASS1;
812 c->flags |= CODEC_FLAG_PASS2;
813 if ( codec->id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
815 char logfilename[1024];
820 snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
821 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
822 if ( c->flags & CODEC_FLAG_PASS1 )
824 f = fopen( logfilename, "w" );
826 perror( logfilename );
828 mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
832 /* read the log file */
833 f = fopen( logfilename, "r" );
840 mlt_properties_set( properties, "_logfilename", logfilename );
841 fseek( f, 0, SEEK_END );
843 fseek( f, 0, SEEK_SET );
844 logbuffer = av_malloc( size + 1 );
846 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate log buffer\n" );
849 size = fread( logbuffer, 1, size, f );
851 logbuffer[size] = '\0';
852 c->stats_in = logbuffer;
853 mlt_properties_set_data( properties, "_logbuffer", logbuffer, 0, ( mlt_destructor )av_free, NULL );
861 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for video\n" );
867 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
870 AVFrame *picture = avcodec_alloc_frame();
872 // Determine size of the
873 int size = avpicture_get_size(pix_fmt, width, height);
875 // Allocate the picture buf
876 uint8_t *picture_buf = av_malloc(size);
878 // If we have both, then fill the image
879 if ( picture != NULL && picture_buf != NULL )
881 // Fill the frame with the allocated buffer
882 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
886 // Something failed - clean up what we can
888 av_free( picture_buf );
895 static int open_video( mlt_properties properties, AVFormatContext *oc, AVStream *st, const char *codec_name )
898 AVCodecContext *video_enc = st->codec;
900 // find the video encoder
903 codec = avcodec_find_encoder_by_name( codec_name );
905 codec = avcodec_find_encoder( video_enc->codec_id );
907 #if LIBAVCODEC_VERSION_MAJOR > 52
908 // Process properties as AVOptions on the AVCodec
909 if ( codec && codec->priv_class )
911 char *vpre = mlt_properties_get( properties, "vpre" );
912 if ( !video_enc->priv_data && codec->priv_data_size )
914 video_enc->priv_data = av_mallocz( codec->priv_data_size );
915 *(const AVClass **) video_enc->priv_data = codec->priv_class;
916 // av_opt_set_defaults( video_enc );
920 mlt_properties p = mlt_properties_load( vpre );
921 apply_properties( video_enc->priv_data, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
922 mlt_properties_close( p );
924 apply_properties( video_enc->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
928 if( codec && codec->pix_fmts )
930 const enum PixelFormat *p = codec->pix_fmts;
933 if( *p == video_enc->pix_fmt )
937 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
940 // Open the codec safely
942 int result = codec != NULL && avcodec_open( video_enc, codec ) >= 0;
948 void close_video(AVFormatContext *oc, AVStream *st)
950 if ( st && st->codec )
953 avcodec_close(st->codec);
958 static inline long time_difference( struct timeval *time1 )
960 struct timeval time2;
961 gettimeofday( &time2, NULL );
962 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
965 /** The main thread - the argument is simply the consumer.
968 static void *consumer_thread( void *arg )
970 // Map the argument to the object
971 mlt_consumer consumer = arg;
973 // Get the properties
974 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
976 // Get the terminate on pause property
977 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
980 // Determine if feed is slow (for realtime stuff)
981 int real_time_output = mlt_properties_get_int( properties, "real_time" );
986 // Get the frame rate
987 double fps = mlt_properties_get_double( properties, "fps" );
989 // Get width and height
990 int width = mlt_properties_get_int( properties, "width" );
991 int height = mlt_properties_get_int( properties, "height" );
992 int img_width = width;
993 int img_height = height;
995 // Get default audio properties
996 mlt_audio_format aud_fmt = mlt_audio_s16;
997 int channels = mlt_properties_get_int( properties, "channels" );
998 int total_channels = channels;
999 int frequency = mlt_properties_get_int( properties, "frequency" );
1000 int16_t *pcm = NULL;
1003 // AVFormat audio buffer and frame size
1004 int audio_outbuf_size = AUDIO_BUFFER_SIZE;
1005 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
1006 int audio_input_frame_size = 0;
1008 // AVFormat video buffer and frame count
1009 int frame_count = 0;
1010 int video_outbuf_size = VIDEO_BUFFER_SIZE;
1011 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
1013 // Used for the frame properties
1014 mlt_frame frame = NULL;
1015 mlt_properties frame_properties = NULL;
1018 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
1019 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
1021 // Need two av pictures for converting
1022 AVFrame *output = NULL;
1023 AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
1025 // For receiving images from an mlt_frame
1027 mlt_image_format img_fmt = mlt_image_yuv422;
1029 // For receiving audio samples back from the fifo
1030 int16_t *audio_buf_1 = av_malloc( AUDIO_ENCODE_BUFFER_SIZE );
1031 int16_t *audio_buf_2 = NULL;
1034 // Allocate the context
1035 #if (LIBAVFORMAT_VERSION_INT >= ((52<<16)+(26<<8)+0))
1036 AVFormatContext *oc = avformat_alloc_context( );
1038 AVFormatContext *oc = av_alloc_format_context( );
1042 AVStream *video_st = NULL;
1043 AVStream *audio_st[ MAX_AUDIO_STREAMS ];
1046 double audio_pts = 0;
1047 double video_pts = 0;
1049 // Frames dispatched
1050 long int frames = 0;
1051 long int total_time = 0;
1053 // Determine the format
1054 AVOutputFormat *fmt = NULL;
1055 const char *filename = mlt_properties_get( properties, "target" );
1056 char *format = mlt_properties_get( properties, "f" );
1057 char *vcodec = mlt_properties_get( properties, "vcodec" );
1058 char *acodec = mlt_properties_get( properties, "acodec" );
1059 AVCodec *audio_codec = NULL;
1060 AVCodec *video_codec = NULL;
1062 // Used to store and override codec ids
1068 mlt_properties frame_meta_properties = mlt_properties_new();
1070 // Initialize audio_st
1071 int i = MAX_AUDIO_STREAMS;
1075 // Check for user selected format first
1076 if ( format != NULL )
1077 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1078 fmt = guess_format( format, NULL, NULL );
1080 fmt = av_guess_format( format, NULL, NULL );
1083 // Otherwise check on the filename
1084 if ( fmt == NULL && filename != NULL )
1085 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1086 fmt = guess_format( NULL, filename, NULL );
1088 fmt = av_guess_format( NULL, filename, NULL );
1091 // Otherwise default to mpeg
1093 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1094 fmt = guess_format( "mpeg", NULL, NULL );
1096 fmt = av_guess_format( "mpeg", NULL, NULL );
1099 // We need a filename - default to stdout?
1100 if ( filename == NULL || !strcmp( filename, "" ) )
1103 // Get the codec ids selected
1104 audio_codec_id = fmt->audio_codec;
1105 video_codec_id = fmt->video_codec;
1107 // Check for audio codec overides
1108 if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
1109 audio_codec_id = CODEC_ID_NONE;
1112 audio_codec = avcodec_find_encoder_by_name( acodec );
1115 audio_codec_id = audio_codec->id;
1116 if ( audio_codec_id == CODEC_ID_AC3 && avcodec_find_encoder_by_name( "ac3_fixed" ) )
1118 mlt_properties_set( properties, "_acodec", "ac3_fixed" );
1119 acodec = mlt_properties_get( properties, "_acodec" );
1120 audio_codec = avcodec_find_encoder_by_name( acodec );
1125 audio_codec_id = CODEC_ID_NONE;
1126 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "audio codec %s unrecognised - ignoring\n", acodec );
1131 audio_codec = avcodec_find_encoder( audio_codec_id );
1134 // Check for video codec overides
1135 if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
1136 video_codec_id = CODEC_ID_NONE;
1139 video_codec = avcodec_find_encoder_by_name( vcodec );
1142 video_codec_id = video_codec->id;
1146 video_codec_id = CODEC_ID_NONE;
1147 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "video codec %s unrecognised - ignoring\n", vcodec );
1152 video_codec = avcodec_find_encoder( video_codec_id );
1156 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
1157 for ( i = 0; i < mlt_properties_count( properties ); i++ )
1159 char *name = mlt_properties_get_name( properties, i );
1160 if ( name && !strncmp( name, "meta.attr.", 10 ) )
1162 char *key = strdup( name + 10 );
1163 char *markup = strrchr( key, '.' );
1164 if ( markup && !strcmp( markup, ".markup") )
1167 if ( !strstr( key, ".stream." ) )
1168 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
1169 av_metadata_set2( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1171 av_metadata_set( &oc->metadata, key, mlt_properties_get_value( properties, i ) );
1181 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
1182 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
1184 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
1185 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
1187 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
1188 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
1190 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
1191 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
1193 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
1194 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
1196 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
1197 if (metavalue != 0) oc->year = metavalue;
1199 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
1200 if (metavalue != 0) oc->track = metavalue;
1204 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
1206 // Add audio and video streams
1207 if ( video_codec_id != CODEC_ID_NONE )
1208 video_st = add_video_stream( consumer, oc, video_codec );
1209 if ( audio_codec_id != CODEC_ID_NONE )
1215 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
1217 sprintf( key, "channels.%d", i );
1218 int j = mlt_properties_get_int( properties, key );
1222 total_channels += j;
1223 audio_st[i] = add_audio_stream( consumer, oc, audio_codec, j );
1229 audio_st[0] = add_audio_stream( consumer, oc, audio_codec, channels );
1230 total_channels = channels;
1234 // Set the parameters (even though we have none...)
1235 if ( av_set_parameters(oc, NULL) >= 0 )
1237 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
1238 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
1240 // Process properties as AVOptions
1241 char *fpre = mlt_properties_get( properties, "fpre" );
1244 mlt_properties p = mlt_properties_load( fpre );
1245 apply_properties( oc, p, AV_OPT_FLAG_ENCODING_PARAM );
1246 #if LIBAVFORMAT_VERSION_MAJOR > 52
1247 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1248 apply_properties( oc->priv_data, p, AV_OPT_FLAG_ENCODING_PARAM );
1250 mlt_properties_close( p );
1252 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
1253 #if LIBAVFORMAT_VERSION_MAJOR > 52
1254 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1255 apply_properties( oc->priv_data, properties, AV_OPT_FLAG_ENCODING_PARAM );
1258 if ( video_st && !open_video( properties, oc, video_st, vcodec? vcodec : NULL ) )
1260 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1262 audio_input_frame_size = open_audio( properties, oc, audio_st[i], audio_outbuf_size,
1263 acodec? acodec : NULL );
1264 if ( !audio_input_frame_size )
1268 // Open the output file, if needed
1269 if ( !( fmt->flags & AVFMT_NOFILE ) )
1271 #if LIBAVFORMAT_VERSION_MAJOR > 52
1272 if ( avio_open( &oc->pb, filename, AVIO_FLAG_WRITE ) < 0 )
1274 if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
1277 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not open '%s'\n", filename );
1278 mlt_properties_set_int( properties, "running", 0 );
1282 // Write the stream header.
1283 if ( mlt_properties_get_int( properties, "running" ) )
1284 av_write_header( oc );
1288 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Invalid output format parameters\n" );
1289 mlt_properties_set_int( properties, "running", 0 );
1294 output = alloc_picture( video_st->codec->pix_fmt, width, height );
1296 // Last check - need at least one stream
1297 if ( !audio_st[0] && !video_st )
1298 mlt_properties_set_int( properties, "running", 0 );
1300 // Get the starting time (can ignore the times above)
1301 gettimeofday( &ante, NULL );
1303 // Loop while running
1304 while( mlt_properties_get_int( properties, "running" ) &&
1305 ( !terminated || ( video_st && mlt_deque_count( queue ) ) ) )
1307 frame = mlt_consumer_rt_frame( consumer );
1309 // Check that we have a frame to work with
1310 if ( frame != NULL )
1312 // Increment frames dispatched
1315 // Default audio args
1316 frame_properties = MLT_FRAME_PROPERTIES( frame );
1318 // Check for the terminated condition
1319 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1321 // Get audio and append to the fifo
1322 if ( !terminated && audio_st[0] )
1324 samples = mlt_sample_calculator( fps, frequency, count ++ );
1325 mlt_frame_get_audio( frame, (void**) &pcm, &aud_fmt, &frequency, &channels, &samples );
1327 // Save the audio channel remap properties for later
1328 mlt_properties_pass( frame_meta_properties, frame_properties, "meta.map.audio." );
1330 // Create the fifo if we don't have one
1333 fifo = sample_fifo_init( frequency, channels );
1334 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1337 // Silence if not normal forward speed
1338 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1339 memset( pcm, 0, samples * channels * 2 );
1341 // Append the samples
1342 sample_fifo_append( fifo, pcm, samples * channels );
1343 total_time += ( samples * 1000000 ) / frequency;
1346 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1350 if ( !terminated && video_st )
1351 mlt_deque_push_back( queue, frame );
1353 mlt_frame_close( frame );
1356 // While we have stuff to process, process...
1359 // Write interleaved audio and video frames
1360 if ( !video_st || ( video_st && audio_st[0] && audio_pts < video_pts ) )
1363 if ( ( video_st && terminated ) || ( channels * audio_input_frame_size ) < sample_fifo_used( fifo ) )
1365 int j = 0; // channel offset into interleaved source buffer
1366 int n = FFMIN( FFMIN( channels * audio_input_frame_size, sample_fifo_used( fifo ) ), AUDIO_ENCODE_BUFFER_SIZE );
1368 // Get the audio samples
1371 sample_fifo_fetch( fifo, audio_buf_1, n );
1373 else if ( audio_codec_id == CODEC_ID_VORBIS && terminated )
1375 // This prevents an infinite loop when some versions of vorbis do not
1376 // increment pts when encoding silence.
1377 audio_pts = video_pts;
1382 memset( audio_buf_1, 0, AUDIO_ENCODE_BUFFER_SIZE );
1384 samples = n / channels;
1386 // For each output stream
1387 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i] && j < total_channels; i++ )
1389 AVStream *stream = audio_st[i];
1390 AVCodecContext *codec = stream->codec;
1393 av_init_packet( &pkt );
1395 // Optimized for single track and no channel remap
1396 if ( !audio_st[1] && !mlt_properties_count( frame_meta_properties ) )
1398 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, audio_buf_1 );
1402 // Extract the audio channels according to channel mapping
1403 int dest_offset = 0; // channel offset into interleaved dest buffer
1405 // Get the number of channels for this stream
1406 sprintf( key, "channels.%d", i );
1407 int current_channels = mlt_properties_get_int( properties, key );
1409 // Clear the destination audio buffer.
1411 audio_buf_2 = av_mallocz( AUDIO_ENCODE_BUFFER_SIZE );
1413 memset( audio_buf_2, 0, AUDIO_ENCODE_BUFFER_SIZE );
1415 // For each output channel
1416 while ( dest_offset < current_channels && j < total_channels )
1418 int map_start = -1, map_channels = 0;
1419 int source_offset = 0;
1422 // Look for a mapping that starts at j
1423 for ( k = 0; k < (MAX_AUDIO_STREAMS * 2) && map_start != j; k++ )
1425 sprintf( key, "%d.channels", k );
1426 map_channels = mlt_properties_get_int( frame_meta_properties, key );
1427 sprintf( key, "%d.start", k );
1428 if ( mlt_properties_get( frame_meta_properties, key ) )
1429 map_start = mlt_properties_get_int( frame_meta_properties, key );
1430 if ( map_start != j )
1431 source_offset += map_channels;
1435 if ( map_start != j )
1437 map_channels = current_channels;
1441 // Copy samples if source offset valid
1442 if ( source_offset < channels )
1444 // Interleave the audio buffer with the # channels for this stream/mapping.
1445 for ( k = 0; k < map_channels; k++, j++, source_offset++, dest_offset++ )
1447 int16_t *src = audio_buf_1 + source_offset;
1448 int16_t *dest = audio_buf_2 + dest_offset;
1449 int s = samples + 1;
1453 dest += current_channels;
1458 // Otherwise silence
1461 j += current_channels;
1462 dest_offset += current_channels;
1465 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, audio_buf_2 );
1468 // Write the compressed frame in the media file
1469 if ( codec->coded_frame && codec->coded_frame->pts != AV_NOPTS_VALUE )
1471 pkt.pts = av_rescale_q( codec->coded_frame->pts, codec->time_base, stream->time_base );
1472 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio stream %d pkt pts %"PRId64" frame pts %"PRId64,
1473 stream->index, pkt.pts, codec->coded_frame->pts );
1475 pkt.flags |= PKT_FLAG_KEY;
1476 pkt.stream_index = stream->index;
1477 pkt.data = audio_outbuf;
1481 if ( av_interleaved_write_frame( oc, &pkt ) )
1483 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing audio frame\n" );
1484 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1485 goto on_fatal_error;
1489 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", codec->frame_size );
1492 audio_pts = (double)stream->pts.val * av_q2d( stream->time_base );
1501 else if ( video_st )
1504 if ( mlt_deque_count( queue ) )
1506 int out_size, ret = 0;
1509 frame = mlt_deque_pop_front( queue );
1510 frame_properties = MLT_FRAME_PROPERTIES( frame );
1512 c = video_st->codec;
1514 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1520 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1524 // Convert the mlt frame to an AVPicture
1525 for ( i = 0; i < height; i ++ )
1527 p = input->data[ 0 ] + i * input->linesize[ 0 ];
1528 memcpy( p, q, width * 2 );
1532 // Do the colour space conversion
1534 int flags = SWS_BILINEAR;
1536 flags |= SWS_CPU_CAPS_MMX;
1539 flags |= SWS_CPU_CAPS_MMX2;
1541 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1542 width, height, video_st->codec->pix_fmt, flags, NULL, NULL, NULL);
1543 sws_scale( context, (const uint8_t* const*) input->data, input->linesize, 0, height,
1544 output->data, output->linesize);
1545 sws_freeContext( context );
1547 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1550 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1552 // Apply the alpha if applicable
1553 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1555 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1558 for ( i = 0; i < height; i ++ )
1560 n = ( width + 7 ) / 8;
1561 p = output->data[ 0 ] + i * output->linesize[ 0 ] + 3;
1565 case 0: do { *p = *alpha++; p += 4;
1566 case 7: *p = *alpha++; p += 4;
1567 case 6: *p = *alpha++; p += 4;
1568 case 5: *p = *alpha++; p += 4;
1569 case 4: *p = *alpha++; p += 4;
1570 case 3: *p = *alpha++; p += 4;
1571 case 2: *p = *alpha++; p += 4;
1572 case 1: *p = *alpha++; p += 4;
1580 if (oc->oformat->flags & AVFMT_RAWPICTURE)
1582 // raw video case. The API will change slightly in the near future for that
1584 av_init_packet(&pkt);
1586 pkt.flags |= PKT_FLAG_KEY;
1587 pkt.stream_index= video_st->index;
1588 pkt.data= (uint8_t *)output;
1589 pkt.size= sizeof(AVPicture);
1591 ret = av_write_frame(oc, &pkt);
1592 video_pts += c->frame_size;
1597 output->quality = video_st->quality;
1599 // Set frame interlace hints
1600 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1601 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1602 output->pts = frame_count;
1605 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1607 // If zero size, it means the image was buffered
1611 av_init_packet( &pkt );
1613 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1614 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1615 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pkt pts %"PRId64" frame pts %"PRId64, pkt.pts, c->coded_frame->pts );
1616 if( c->coded_frame && c->coded_frame->key_frame )
1617 pkt.flags |= PKT_FLAG_KEY;
1618 pkt.stream_index= video_st->index;
1619 pkt.data= video_outbuf;
1622 // write the compressed frame in the media file
1623 ret = av_interleaved_write_frame(oc, &pkt);
1624 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", c->frame_size );
1625 video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1627 // Dual pass logging
1628 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1629 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1631 else if ( out_size < 0 )
1633 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with video encode %d\n", frame_count );
1639 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing video frame\n" );
1640 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1641 goto on_fatal_error;
1643 mlt_frame_close( frame );
1651 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio pts %"PRId64" (%f) ", audio_st[0]->pts.val, audio_pts );
1653 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pts %"PRId64" (%f) ", video_st->pts.val, video_pts );
1654 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "\n" );
1657 if ( real_time_output == 1 && frames % 2 == 0 )
1659 long passed = time_difference( &ante );
1662 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1665 if ( passed < total_time )
1667 long total = ( total_time - passed );
1668 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1669 nanosleep( &t, NULL );
1674 // Flush the encoder buffers
1675 if ( real_time_output <= 0 )
1678 // TODO: flush all audio streams
1679 if ( audio_st[0] && audio_st[0]->codec->frame_size > 1 ) for (;;)
1681 AVCodecContext *c = audio_st[0]->codec;
1683 av_init_packet( &pkt );
1686 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1687 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1689 sample_fifo_fetch( fifo, audio_buf_1, channels * audio_input_frame_size );
1690 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, audio_buf_1 );
1692 if ( pkt.size <= 0 )
1693 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1694 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
1695 if ( pkt.size <= 0 )
1698 // Write the compressed frame in the media file
1699 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1700 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st[0]->time_base );
1701 pkt.flags |= PKT_FLAG_KEY;
1702 pkt.stream_index = audio_st[0]->index;
1703 pkt.data = audio_outbuf;
1704 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1706 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing flushed audio frame\n" );
1707 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1708 goto on_fatal_error;
1713 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1715 AVCodecContext *c = video_st->codec;
1717 av_init_packet( &pkt );
1720 pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1721 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing video size %d\n", pkt.size );
1722 if ( pkt.size <= 0 )
1725 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1726 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1727 if( c->coded_frame && c->coded_frame->key_frame )
1728 pkt.flags |= PKT_FLAG_KEY;
1729 pkt.stream_index = video_st->index;
1730 pkt.data = video_outbuf;
1732 // write the compressed frame in the media file
1733 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1735 mlt_log_fatal( MLT_CONSUMER_SERVICE(consumer), "error writing flushed video frame\n" );
1736 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1737 goto on_fatal_error;
1739 // Dual pass logging
1740 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1741 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1747 // Write the trailer, if any
1748 av_write_trailer( oc );
1752 close_video(oc, video_st);
1753 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1754 close_audio( oc, audio_st[i] );
1757 for ( i = 0; i < oc->nb_streams; i++ )
1758 av_freep( &oc->streams[i] );
1760 // Close the output file
1761 if ( !( fmt->flags & AVFMT_NOFILE ) )
1762 #if LIBAVFORMAT_VERSION_MAJOR > 52
1763 avio_close( oc->pb );
1764 #elif LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1765 url_fclose( oc->pb );
1767 url_fclose( &oc->pb );
1770 // Clean up input and output frames
1772 av_free( output->data[0] );
1774 av_free( input->data[0] );
1776 av_free( video_outbuf );
1777 av_free( audio_buf_1 );
1778 av_free( audio_buf_2 );
1783 // Just in case we terminated on pause
1784 mlt_properties_set_int( properties, "running", 0 );
1786 mlt_consumer_stopped( consumer );
1787 mlt_properties_close( frame_meta_properties );
1789 if ( mlt_properties_get_int( properties, "pass" ) > 1 )
1791 // Remove the dual pass log file
1792 if ( mlt_properties_get( properties, "_logfilename" ) )
1793 remove( mlt_properties_get( properties, "_logfilename" ) );
1795 // Remove the x264 dual pass logs
1796 char *cwd = getcwd( NULL, 0 );
1797 const char *file = "x264_2pass.log";
1798 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1799 sprintf( full, "%s/%s", cwd, file );
1802 file = "x264_2pass.log.temp";
1803 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1804 sprintf( full, "%s/%s", cwd, file );
1807 file = "x264_2pass.log.mbtree";
1808 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1809 sprintf( full, "%s/%s", cwd, file );
1813 remove( "x264_2pass.log.temp" );
1816 while ( ( frame = mlt_deque_pop_back( queue ) ) )
1817 mlt_frame_close( frame );
1822 /** Close the consumer.
1825 static void consumer_close( mlt_consumer consumer )
1827 // Stop the consumer
1828 mlt_consumer_stop( consumer );
1831 mlt_consumer_close( consumer );