2 * consumer_avformat.c -- an encoder based on avformat
3 * Copyright (C) 2003-2012 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
5 * Author: Dan Dennedy <dan@dennedy.org>
6 * Much code borrowed from ffmpeg.c: Copyright (c) 2000-2003 Fabrice Bellard
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <framework/mlt_consumer.h>
25 #include <framework/mlt_frame.h>
26 #include <framework/mlt_profile.h>
27 #include <framework/mlt_log.h>
28 #include <framework/mlt_events.h>
30 // System header files
39 // avformat header files
40 #include <libavformat/avformat.h>
41 #include <libavformat/avio.h>
43 #include <libswscale/swscale.h>
45 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
46 #include <libavutil/pixdesc.h>
48 #include <libavutil/mathematics.h>
50 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(38<<8)+0)
51 # include <libavutil/samplefmt.h>
53 # define AV_SAMPLE_FMT_NONE SAMPLE_FMT_NONE
54 # define AV_SAMPLE_FMT_S16 SAMPLE_FMT_S16
55 # define AV_SAMPLE_FMT_S32 SAMPLE_FMT_S32
56 # define AV_SAMPLE_FMT_FLT SAMPLE_FMT_FLT
59 #if LIBAVUTIL_VERSION_INT < (50<<16)
60 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
61 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
64 #if LIBAVCODEC_VERSION_MAJOR >= 53
65 #include <libavutil/opt.h>
66 #define CODEC_TYPE_VIDEO AVMEDIA_TYPE_VIDEO
67 #define CODEC_TYPE_AUDIO AVMEDIA_TYPE_AUDIO
68 #define PKT_FLAG_KEY AV_PKT_FLAG_KEY
70 #include <libavcodec/opt.h>
73 #define MAX_AUDIO_STREAMS (8)
74 #define AUDIO_ENCODE_BUFFER_SIZE (48000 * 2 * MAX_AUDIO_STREAMS)
75 #define AUDIO_BUFFER_SIZE (1024 * 42)
76 #define VIDEO_BUFFER_SIZE (2048 * 1024)
79 // This structure should be extended and made globally available in mlt
91 *sample_fifo, sample_fifo_s;
93 sample_fifo sample_fifo_init( int frequency, int channels )
95 sample_fifo fifo = calloc( 1, sizeof( sample_fifo_s ) );
96 fifo->frequency = frequency;
97 fifo->channels = channels;
101 // count is the number of samples multiplied by the number of bytes per sample
102 void sample_fifo_append( sample_fifo fifo, uint8_t *samples, int count )
104 if ( ( fifo->size - fifo->used ) < count )
106 fifo->size += count * 5;
107 fifo->buffer = realloc( fifo->buffer, fifo->size );
110 memcpy( &fifo->buffer[ fifo->used ], samples, count );
114 int sample_fifo_used( sample_fifo fifo )
119 int sample_fifo_fetch( sample_fifo fifo, uint8_t *samples, int count )
121 if ( count > fifo->used )
124 memcpy( samples, fifo->buffer, count );
126 memmove( fifo->buffer, &fifo->buffer[ count ], fifo->used );
128 fifo->time += ( double )count / fifo->channels / fifo->frequency;
133 void sample_fifo_close( sample_fifo fifo )
135 free( fifo->buffer );
139 // Forward references.
140 static int consumer_start( mlt_consumer consumer );
141 static int consumer_stop( mlt_consumer consumer );
142 static int consumer_is_stopped( mlt_consumer consumer );
143 static void *consumer_thread( void *arg );
144 static void consumer_close( mlt_consumer consumer );
146 /** Initialise the consumer.
149 mlt_consumer consumer_avformat_init( mlt_profile profile, char *arg )
151 // Allocate the consumer
152 mlt_consumer consumer = mlt_consumer_new( profile );
154 // If memory allocated and initialises without error
155 if ( consumer != NULL )
157 // Get properties from the consumer
158 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
160 // Assign close callback
161 consumer->close = consumer_close;
163 // Interpret the argument
165 mlt_properties_set( properties, "target", arg );
167 // sample and frame queue
168 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
170 // Audio options not fully handled by AVOptions
171 #define QSCALE_NONE (-99999)
172 mlt_properties_set_int( properties, "aq", QSCALE_NONE );
174 // Video options not fully handled by AVOptions
175 mlt_properties_set_int( properties, "dc", 8 );
177 // Muxer options not fully handled by AVOptions
178 mlt_properties_set_double( properties, "muxdelay", 0.7 );
179 mlt_properties_set_double( properties, "muxpreload", 0.5 );
181 // Some AVOption defaults we like
182 mlt_properties_set( properties, "strict", "experimental" );
184 // Ensure termination at end of the stream
185 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
187 // Default to separate processing threads for producer and consumer with no frame dropping!
188 mlt_properties_set_int( properties, "real_time", -1 );
189 mlt_properties_set_int( properties, "prefill", 1 );
191 // Set up start/stop/terminated callbacks
192 consumer->start = consumer_start;
193 consumer->stop = consumer_stop;
194 consumer->is_stopped = consumer_is_stopped;
196 mlt_events_register( properties, "consumer-fatal-error", NULL );
203 /** Start the consumer.
206 static int consumer_start( mlt_consumer consumer )
208 // Get the properties
209 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
212 // Report information about available muxers and codecs as YAML Tiny
213 char *s = mlt_properties_get( properties, "f" );
214 if ( s && strcmp( s, "list" ) == 0 )
216 mlt_properties doc = mlt_properties_new();
217 mlt_properties formats = mlt_properties_new();
219 AVOutputFormat *format = NULL;
221 mlt_properties_set_data( properties, "f", formats, 0, (mlt_destructor) mlt_properties_close, NULL );
222 mlt_properties_set_data( doc, "formats", formats, 0, NULL, NULL );
223 while ( ( format = av_oformat_next( format ) ) )
225 snprintf( key, sizeof(key), "%d", mlt_properties_count( formats ) );
226 mlt_properties_set( formats, key, format->name );
228 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
229 mlt_properties_close( doc );
232 s = mlt_properties_get( properties, "acodec" );
233 if ( s && strcmp( s, "list" ) == 0 )
235 mlt_properties doc = mlt_properties_new();
236 mlt_properties codecs = mlt_properties_new();
238 AVCodec *codec = NULL;
240 mlt_properties_set_data( properties, "acodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
241 mlt_properties_set_data( doc, "audio_codecs", codecs, 0, NULL, NULL );
242 while ( ( codec = av_codec_next( codec ) ) )
243 if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
245 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
246 mlt_properties_set( codecs, key, codec->name );
248 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
249 mlt_properties_close( doc );
252 s = mlt_properties_get( properties, "vcodec" );
253 if ( s && strcmp( s, "list" ) == 0 )
255 mlt_properties doc = mlt_properties_new();
256 mlt_properties codecs = mlt_properties_new();
258 AVCodec *codec = NULL;
260 mlt_properties_set_data( properties, "vcodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
261 mlt_properties_set_data( doc, "video_codecs", codecs, 0, NULL, NULL );
262 while ( ( codec = av_codec_next( codec ) ) )
263 if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
265 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
266 mlt_properties_set( codecs, key, codec->name );
268 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
269 mlt_properties_close( doc );
273 // Check that we're not already running
274 if ( !error && !mlt_properties_get_int( properties, "running" ) )
277 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
279 // Get the width and height
280 int width = mlt_properties_get_int( properties, "width" );
281 int height = mlt_properties_get_int( properties, "height" );
283 // Obtain the size property
284 char *size = mlt_properties_get( properties, "s" );
290 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
297 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Invalid size property %s - ignoring.\n", size );
301 // Now ensure we honour the multiple of two requested by libavformat
302 width = ( width / 2 ) * 2;
303 height = ( height / 2 ) * 2;
304 mlt_properties_set_int( properties, "width", width );
305 mlt_properties_set_int( properties, "height", height );
307 // We need to set these on the profile as well because the s property is
308 // an alias to mlt properties that correspond to profile settings.
309 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
312 profile->width = width;
313 profile->height = height;
316 // Handle the ffmpeg command line "-r" property for frame rate
317 if ( mlt_properties_get( properties, "r" ) )
319 double frame_rate = mlt_properties_get_double( properties, "r" );
320 AVRational rational = av_d2q( frame_rate, 255 );
321 mlt_properties_set_int( properties, "frame_rate_num", rational.num );
322 mlt_properties_set_int( properties, "frame_rate_den", rational.den );
325 profile->frame_rate_num = rational.num;
326 profile->frame_rate_den = rational.den;
327 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
331 // Apply AVOptions that are synonyms for standard mlt_consumer options
332 if ( mlt_properties_get( properties, "ac" ) )
333 mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
334 if ( mlt_properties_get( properties, "ar" ) )
335 mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
337 // Assign the thread to properties
338 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
340 // Set the running state
341 mlt_properties_set_int( properties, "running", 1 );
344 pthread_create( thread, NULL, consumer_thread, consumer );
349 /** Stop the consumer.
352 static int consumer_stop( mlt_consumer consumer )
354 // Get the properties
355 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
357 // Check that we're running
358 if ( mlt_properties_get_int( properties, "running" ) )
361 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
364 mlt_properties_set_int( properties, "running", 0 );
366 // Wait for termination
367 pthread_join( *thread, NULL );
373 /** Determine if the consumer is stopped.
376 static int consumer_is_stopped( mlt_consumer consumer )
378 // Get the properties
379 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
380 return !mlt_properties_get_int( properties, "running" );
383 /** Process properties as AVOptions and apply to AV context obj
386 static void apply_properties( void *obj, mlt_properties properties, int flags )
389 int count = mlt_properties_count( properties );
390 #if LIBAVUTIL_VERSION_INT < ((51<<16)+(12<<8)+0)
394 for ( i = 0; i < count; i++ )
396 const char *opt_name = mlt_properties_get_name( properties, i );
397 #if LIBAVUTIL_VERSION_INT > ((51<<16)+(7<<8)+0)
398 const AVOption *opt = av_opt_find( obj, opt_name, NULL, flags, flags );
400 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
403 // If option not found, see if it was prefixed with a or v (-vb)
405 ( opt_name[0] == 'v' && ( flags & AV_OPT_FLAG_VIDEO_PARAM ) ) ||
406 ( opt_name[0] == 'a' && ( flags & AV_OPT_FLAG_AUDIO_PARAM ) ) ) )
407 #if LIBAVUTIL_VERSION_INT > ((51<<16)+(7<<8)+0)
408 opt = av_opt_find( obj, ++opt_name, NULL, flags, flags );
410 opt = av_find_opt( obj, ++opt_name, NULL, flags, flags );
412 // Apply option if found
414 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(12<<8)+0)
415 av_opt_set( obj, opt_name, mlt_properties_get_value( properties, i), 0 );
416 #elif LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
417 av_set_string3( obj, opt_name, mlt_properties_get_value( properties, i), alloc, NULL );
418 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
419 av_set_string2( obj, opt_name, mlt_properties_get_value( properties, i), alloc );
421 av_set_string( obj, opt_name, mlt_properties_get_value( properties, i) );
426 static int get_mlt_audio_format( int av_sample_fmt )
428 switch ( av_sample_fmt )
430 case AV_SAMPLE_FMT_S32:
431 return mlt_audio_s32le;
432 case AV_SAMPLE_FMT_FLT:
433 return mlt_audio_f32le;
434 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
435 case AV_SAMPLE_FMT_S32P:
436 return mlt_audio_s32;
437 case AV_SAMPLE_FMT_FLTP:
438 return mlt_audio_float;
441 return mlt_audio_s16;
445 static int pick_sample_fmt( mlt_properties properties, AVCodec *codec )
447 int sample_fmt = AV_SAMPLE_FMT_S16;
448 const char *format = mlt_properties_get( properties, "mlt_audio_format" );
449 const int *p = codec->sample_fmts;
451 // get default av_sample_fmt from mlt_audio_format
454 if ( !strcmp( format, "s32le" ) )
455 sample_fmt = AV_SAMPLE_FMT_S32;
456 else if ( !strcmp( format, "f32le" ) )
457 sample_fmt = AV_SAMPLE_FMT_FLT;
458 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
459 else if ( !strcmp( format, "s32" ) )
460 sample_fmt = AV_SAMPLE_FMT_S32P;
461 else if ( !strcmp( format, "float" ) )
462 sample_fmt = AV_SAMPLE_FMT_FLTP;
465 // check if codec supports our mlt_audio_format
466 for ( ; *p != -1; p++ )
468 if ( *p == sample_fmt )
471 // no match - pick first one we support
472 for ( p = codec->sample_fmts; *p != -1; p++ )
476 case AV_SAMPLE_FMT_S16:
477 case AV_SAMPLE_FMT_S32:
478 case AV_SAMPLE_FMT_FLT:
479 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
480 case AV_SAMPLE_FMT_S32P:
481 case AV_SAMPLE_FMT_FLTP:
488 mlt_log_error( properties, "audio codec sample_fmt not compatible" );
490 return AV_SAMPLE_FMT_NONE;
493 /** Add an audio output stream
496 static AVStream *add_audio_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec, int channels )
498 // Get the properties
499 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
501 // Create a new stream
502 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
503 AVStream *st = avformat_new_stream( oc, codec );
505 AVStream *st = av_new_stream( oc, oc->nb_streams );
508 // If created, then initialise from properties
511 AVCodecContext *c = st->codec;
513 // Establish defaults from AVOptions
514 #if LIBAVCODEC_VERSION_MAJOR >= 53
515 avcodec_get_context_defaults3( c, codec );
517 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
520 c->codec_id = codec->id;
521 c->codec_type = CODEC_TYPE_AUDIO;
522 c->sample_fmt = pick_sample_fmt( properties, codec );
524 #if 0 // disabled until some audio codecs are multi-threaded
525 // Setup multi-threading
526 int thread_count = mlt_properties_get_int( properties, "threads" );
527 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
528 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
529 if ( thread_count > 1 )
530 c->thread_count = thread_count;
533 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
534 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
536 // Allow the user to override the audio fourcc
537 if ( mlt_properties_get( properties, "atag" ) )
540 char *arg = mlt_properties_get( properties, "atag" );
541 int tag = strtol( arg, &tail, 0);
543 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
547 // Process properties as AVOptions
548 char *apre = mlt_properties_get( properties, "apre" );
551 mlt_properties p = mlt_properties_load( apre );
552 apply_properties( c, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
553 mlt_properties_close( p );
555 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
557 int audio_qscale = mlt_properties_get_int( properties, "aq" );
558 if ( audio_qscale > QSCALE_NONE )
560 c->flags |= CODEC_FLAG_QSCALE;
561 c->global_quality = FF_QP2LAMBDA * audio_qscale;
562 #if LIBAVFORMAT_VERSION_MAJOR < 53
563 st->quality = c->global_quality;
567 // Set parameters controlled by MLT
568 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
569 c->time_base = ( AVRational ){ 1, c->sample_rate };
570 c->channels = channels;
572 if ( mlt_properties_get( properties, "alang" ) != NULL )
573 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
574 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
575 av_dict_set( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
577 av_metadata_set2( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
581 strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
586 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for audio\n" );
592 static int open_audio( mlt_properties properties, AVFormatContext *oc, AVStream *st, int audio_outbuf_size, const char *codec_name )
594 // We will return the audio input size from here
595 int audio_input_frame_size = 0;
598 AVCodecContext *c = st->codec;
603 codec = avcodec_find_encoder_by_name( codec_name );
605 codec = avcodec_find_encoder( c->codec_id );
607 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(122<<8)+0)
608 // Process properties as AVOptions on the AVCodec
609 if ( codec && codec->priv_class )
611 char *apre = mlt_properties_get( properties, "apre" );
612 if ( !c->priv_data && codec->priv_data_size )
614 c->priv_data = av_mallocz( codec->priv_data_size );
615 *(const AVClass **) c->priv_data = codec->priv_class;
616 // av_opt_set_defaults( c );
620 mlt_properties p = mlt_properties_load( apre );
621 apply_properties( c->priv_data, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
622 mlt_properties_close( p );
624 apply_properties( c->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
628 // Continue if codec found and we can open it
629 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
630 if ( codec && avcodec_open2( c, codec, NULL ) >= 0 )
632 if ( codec && avcodec_open( c, codec ) >= 0 )
635 // ugly hack for PCM codecs (will be removed ASAP with new PCM
636 // support to compute the input frame size in samples
637 if ( c->frame_size <= 1 )
639 audio_input_frame_size = audio_outbuf_size / c->channels;
640 switch(st->codec->codec_id)
642 case CODEC_ID_PCM_S16LE:
643 case CODEC_ID_PCM_S16BE:
644 case CODEC_ID_PCM_U16LE:
645 case CODEC_ID_PCM_U16BE:
646 audio_input_frame_size >>= 1;
654 audio_input_frame_size = c->frame_size;
657 // Some formats want stream headers to be seperate (hmm)
658 if ( !strcmp( oc->oformat->name, "mp4" ) ||
659 !strcmp( oc->oformat->name, "mov" ) ||
660 !strcmp( oc->oformat->name, "3gp" ) )
661 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
665 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
668 return audio_input_frame_size;
671 static void close_audio( AVFormatContext *oc, AVStream *st )
673 if ( st && st->codec )
674 avcodec_close( st->codec );
677 /** Add a video output stream
680 static AVStream *add_video_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec )
682 // Get the properties
683 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
685 // Create a new stream
686 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
687 AVStream *st = avformat_new_stream( oc, codec );
689 AVStream *st = av_new_stream( oc, oc->nb_streams );
694 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
695 AVCodecContext *c = st->codec;
697 // Establish defaults from AVOptions
698 #if LIBAVCODEC_VERSION_MAJOR >= 53
699 avcodec_get_context_defaults3( c, codec );
701 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
704 c->codec_id = codec->id;
705 c->codec_type = CODEC_TYPE_VIDEO;
707 // Setup multi-threading
708 int thread_count = mlt_properties_get_int( properties, "threads" );
709 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
710 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
711 if ( thread_count > 1 )
712 #if LIBAVCODEC_VERSION_MAJOR >= 53
713 c->thread_count = thread_count;
715 avcodec_thread_init( c, thread_count );
718 // Process properties as AVOptions
719 char *vpre = mlt_properties_get( properties, "vpre" );
722 mlt_properties p = mlt_properties_load( vpre );
724 if ( mlt_properties_count( p ) < 1 )
726 AVCodec *codec = avcodec_find_encoder( c->codec_id );
729 char *path = malloc( strlen(AVDATADIR) + strlen(codec->name) + strlen(vpre) + strlen(".ffpreset") + 2 );
730 strcpy( path, AVDATADIR );
731 strcat( path, codec->name );
733 strcat( path, vpre );
734 strcat( path, ".ffpreset" );
736 mlt_properties_close( p );
737 p = mlt_properties_load( path );
738 if ( mlt_properties_count( p ) > 0 )
739 mlt_properties_debug( p, path, stderr );
745 mlt_properties_debug( p, vpre, stderr );
748 apply_properties( c, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
749 mlt_properties_close( p );
751 int colorspace = mlt_properties_get_int( properties, "colorspace" );
752 mlt_properties_set( properties, "colorspace", NULL );
753 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
754 mlt_properties_set_int( properties, "colorspace", colorspace );
756 // Set options controlled by MLT
757 c->width = mlt_properties_get_int( properties, "width" );
758 c->height = mlt_properties_get_int( properties, "height" );
759 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
760 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
761 if ( st->time_base.den == 0 )
762 st->time_base = c->time_base;
763 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
764 c->pix_fmt = pix_fmt ? av_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
766 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
769 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
770 switch ( colorspace )
773 c->colorspace = AVCOL_SPC_SMPTE170M;
776 c->colorspace = AVCOL_SPC_SMPTE240M;
779 c->colorspace = AVCOL_SPC_BT470BG;
782 c->colorspace = ( 576 % c->height ) ? AVCOL_SPC_SMPTE170M : AVCOL_SPC_BT470BG;
785 c->colorspace = AVCOL_SPC_BT709;
790 if ( mlt_properties_get( properties, "aspect" ) )
792 // "-aspect" on ffmpeg command line is display aspect ratio
793 double ar = mlt_properties_get_double( properties, "aspect" );
794 AVRational rational = av_d2q( ar, 255 );
796 // Update the profile and properties as well since this is an alias
797 // for mlt properties that correspond to profile settings
798 mlt_properties_set_int( properties, "display_aspect_num", rational.num );
799 mlt_properties_set_int( properties, "display_aspect_den", rational.den );
800 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
803 profile->display_aspect_num = rational.num;
804 profile->display_aspect_den = rational.den;
805 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
808 // Now compute the sample aspect ratio
809 rational = av_d2q( ar * c->height / c->width, 255 );
810 c->sample_aspect_ratio = rational;
811 // Update the profile and properties as well since this is an alias
812 // for mlt properties that correspond to profile settings
813 mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
814 mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
817 profile->sample_aspect_num = rational.num;
818 profile->sample_aspect_den = rational.den;
819 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
824 c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
825 c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
827 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
828 st->sample_aspect_ratio = c->sample_aspect_ratio;
831 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
833 c->flags |= CODEC_FLAG_QSCALE;
834 c->global_quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
835 #if LIBAVFORMAT_VERSION_MAJOR < 53
836 st->quality = c->global_quality;
840 // Allow the user to override the video fourcc
841 if ( mlt_properties_get( properties, "vtag" ) )
844 const char *arg = mlt_properties_get( properties, "vtag" );
845 int tag = strtol( arg, &tail, 0);
847 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
851 // Some formats want stream headers to be seperate
852 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
853 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
855 // Translate these standard mlt consumer properties to ffmpeg
856 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
857 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
859 if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
860 c->flags |= CODEC_FLAG_INTERLACED_DCT;
861 if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
862 c->flags |= CODEC_FLAG_INTERLACED_ME;
865 // parse the ratecontrol override string
867 char *rc_override = mlt_properties_get( properties, "rc_override" );
868 for ( i = 0; rc_override; i++ )
871 int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
873 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Error parsing rc_override\n" );
874 c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
875 c->rc_override[i].start_frame = start;
876 c->rc_override[i].end_frame = end;
879 c->rc_override[i].qscale = q;
880 c->rc_override[i].quality_factor = 1.0;
884 c->rc_override[i].qscale = 0;
885 c->rc_override[i].quality_factor = -q / 100.0;
887 rc_override = strchr( rc_override, '/' );
891 c->rc_override_count = i;
892 if ( !c->rc_initial_buffer_occupancy )
893 c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
894 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
897 i = mlt_properties_get_int( properties, "pass" );
899 c->flags |= CODEC_FLAG_PASS1;
901 c->flags |= CODEC_FLAG_PASS2;
902 if ( codec->id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
904 char logfilename[1024];
909 snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
910 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
911 if ( c->flags & CODEC_FLAG_PASS1 )
913 f = fopen( logfilename, "w" );
915 perror( logfilename );
917 mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
921 /* read the log file */
922 f = fopen( logfilename, "r" );
929 mlt_properties_set( properties, "_logfilename", logfilename );
930 fseek( f, 0, SEEK_END );
932 fseek( f, 0, SEEK_SET );
933 logbuffer = av_malloc( size + 1 );
935 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate log buffer\n" );
938 size = fread( logbuffer, 1, size, f );
940 logbuffer[size] = '\0';
941 c->stats_in = logbuffer;
949 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for video\n" );
955 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
958 AVFrame *picture = avcodec_alloc_frame();
960 // Determine size of the
961 int size = avpicture_get_size(pix_fmt, width, height);
963 // Allocate the picture buf
964 uint8_t *picture_buf = av_malloc(size);
966 // If we have both, then fill the image
967 if ( picture != NULL && picture_buf != NULL )
969 // Fill the frame with the allocated buffer
970 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
974 // Something failed - clean up what we can
976 av_free( picture_buf );
983 static int open_video( mlt_properties properties, AVFormatContext *oc, AVStream *st, const char *codec_name )
986 AVCodecContext *video_enc = st->codec;
988 // find the video encoder
991 codec = avcodec_find_encoder_by_name( codec_name );
993 codec = avcodec_find_encoder( video_enc->codec_id );
995 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(122<<8)+0)
996 // Process properties as AVOptions on the AVCodec
997 if ( codec && codec->priv_class )
999 char *vpre = mlt_properties_get( properties, "vpre" );
1000 if ( !video_enc->priv_data && codec->priv_data_size )
1002 video_enc->priv_data = av_mallocz( codec->priv_data_size );
1003 *(const AVClass **) video_enc->priv_data = codec->priv_class;
1004 // av_opt_set_defaults( video_enc );
1008 mlt_properties p = mlt_properties_load( vpre );
1009 apply_properties( video_enc->priv_data, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
1010 mlt_properties_close( p );
1012 apply_properties( video_enc->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
1016 if( codec && codec->pix_fmts )
1018 const enum PixelFormat *p = codec->pix_fmts;
1019 for( ; *p!=-1; p++ )
1021 if( *p == video_enc->pix_fmt )
1025 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
1028 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
1029 int result = codec && avcodec_open2( video_enc, codec, NULL ) >= 0;
1031 int result = codec && avcodec_open( video_enc, codec ) >= 0;
1037 void close_video(AVFormatContext *oc, AVStream *st)
1039 if ( st && st->codec )
1041 av_freep( &st->codec->stats_in );
1042 avcodec_close(st->codec);
1046 static inline long time_difference( struct timeval *time1 )
1048 struct timeval time2;
1049 gettimeofday( &time2, NULL );
1050 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
1053 static int mlt_write(void *h, uint8_t *buf, int size)
1055 mlt_properties properties = (mlt_properties) h;
1056 mlt_events_fire( properties, "avformat-write", buf, size, NULL );
1060 static void write_transmitter( mlt_listener listener, mlt_properties owner, mlt_service service, void **args )
1062 listener( owner, service, (uint8_t*) args[0], (int) args[1] );
1066 /** The main thread - the argument is simply the consumer.
1069 static void *consumer_thread( void *arg )
1071 // Map the argument to the object
1072 mlt_consumer consumer = arg;
1074 // Get the properties
1075 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
1077 // Get the terminate on pause property
1078 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
1081 // Determine if feed is slow (for realtime stuff)
1082 int real_time_output = mlt_properties_get_int( properties, "real_time" );
1085 struct timeval ante;
1087 // Get the frame rate
1088 double fps = mlt_properties_get_double( properties, "fps" );
1090 // Get width and height
1091 int width = mlt_properties_get_int( properties, "width" );
1092 int height = mlt_properties_get_int( properties, "height" );
1093 int img_width = width;
1094 int img_height = height;
1096 // Get default audio properties
1097 int channels = mlt_properties_get_int( properties, "channels" );
1098 int total_channels = channels;
1099 int frequency = mlt_properties_get_int( properties, "frequency" );
1103 // AVFormat audio buffer and frame size
1104 int audio_outbuf_size = AUDIO_BUFFER_SIZE;
1105 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
1106 int audio_input_frame_size = 0;
1108 // AVFormat video buffer and frame count
1109 int frame_count = 0;
1110 int video_outbuf_size = VIDEO_BUFFER_SIZE;
1111 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
1113 // Used for the frame properties
1114 mlt_frame frame = NULL;
1115 mlt_properties frame_properties = NULL;
1118 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
1119 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
1121 // Need two av pictures for converting
1122 AVFrame *output = NULL;
1123 AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
1125 // For receiving images from an mlt_frame
1127 mlt_image_format img_fmt = mlt_image_yuv422;
1129 // For receiving audio samples back from the fifo
1130 uint8_t *audio_buf_1 = av_malloc( AUDIO_ENCODE_BUFFER_SIZE );
1131 uint8_t *audio_buf_2 = NULL;
1134 // Allocate the context
1135 #if (LIBAVFORMAT_VERSION_INT >= ((52<<16)+(26<<8)+0))
1136 AVFormatContext *oc = avformat_alloc_context( );
1138 AVFormatContext *oc = av_alloc_format_context( );
1142 AVStream *video_st = NULL;
1143 AVStream *audio_st[ MAX_AUDIO_STREAMS ];
1146 double audio_pts = 0;
1147 double video_pts = 0;
1149 // Frames dispatched
1150 long int frames = 0;
1151 long int total_time = 0;
1153 // Determine the format
1154 AVOutputFormat *fmt = NULL;
1155 const char *filename = mlt_properties_get( properties, "target" );
1156 char *format = mlt_properties_get( properties, "f" );
1157 char *vcodec = mlt_properties_get( properties, "vcodec" );
1158 char *acodec = mlt_properties_get( properties, "acodec" );
1159 AVCodec *audio_codec = NULL;
1160 AVCodec *video_codec = NULL;
1162 // Used to store and override codec ids
1168 mlt_properties frame_meta_properties = mlt_properties_new();
1170 // Initialize audio_st
1171 int i = MAX_AUDIO_STREAMS;
1175 // Check for user selected format first
1176 if ( format != NULL )
1177 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1178 fmt = guess_format( format, NULL, NULL );
1180 fmt = av_guess_format( format, NULL, NULL );
1183 // Otherwise check on the filename
1184 if ( fmt == NULL && filename != NULL )
1185 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1186 fmt = guess_format( NULL, filename, NULL );
1188 fmt = av_guess_format( NULL, filename, NULL );
1191 // Otherwise default to mpeg
1193 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1194 fmt = guess_format( "mpeg", NULL, NULL );
1196 fmt = av_guess_format( "mpeg", NULL, NULL );
1199 // We need a filename - default to stdout?
1200 if ( filename == NULL || !strcmp( filename, "" ) )
1203 // Get the codec ids selected
1204 audio_codec_id = fmt->audio_codec;
1205 video_codec_id = fmt->video_codec;
1207 // Check for audio codec overides
1208 if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
1209 audio_codec_id = CODEC_ID_NONE;
1212 audio_codec = avcodec_find_encoder_by_name( acodec );
1215 audio_codec_id = audio_codec->id;
1216 if ( audio_codec_id == CODEC_ID_AC3 && avcodec_find_encoder_by_name( "ac3_fixed" ) )
1218 mlt_properties_set( properties, "_acodec", "ac3_fixed" );
1219 acodec = mlt_properties_get( properties, "_acodec" );
1220 audio_codec = avcodec_find_encoder_by_name( acodec );
1225 audio_codec_id = CODEC_ID_NONE;
1226 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "audio codec %s unrecognised - ignoring\n", acodec );
1231 audio_codec = avcodec_find_encoder( audio_codec_id );
1234 // Check for video codec overides
1235 if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
1236 video_codec_id = CODEC_ID_NONE;
1239 video_codec = avcodec_find_encoder_by_name( vcodec );
1242 video_codec_id = video_codec->id;
1246 video_codec_id = CODEC_ID_NONE;
1247 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "video codec %s unrecognised - ignoring\n", vcodec );
1252 video_codec = avcodec_find_encoder( video_codec_id );
1256 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
1257 for ( i = 0; i < mlt_properties_count( properties ); i++ )
1259 char *name = mlt_properties_get_name( properties, i );
1260 if ( name && !strncmp( name, "meta.attr.", 10 ) )
1262 char *key = strdup( name + 10 );
1263 char *markup = strrchr( key, '.' );
1264 if ( markup && !strcmp( markup, ".markup") )
1267 if ( !strstr( key, ".stream." ) )
1268 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
1269 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
1270 av_dict_set( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1272 av_metadata_set2( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1275 av_metadata_set( &oc->metadata, key, mlt_properties_get_value( properties, i ) );
1285 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
1286 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
1288 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
1289 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
1291 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
1292 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
1294 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
1295 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
1297 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
1298 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
1300 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
1301 if (metavalue != 0) oc->year = metavalue;
1303 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
1304 if (metavalue != 0) oc->track = metavalue;
1308 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
1310 // Get a frame now, so we can set some AVOptions from properties.
1311 frame = mlt_consumer_rt_frame( consumer );
1313 // Set the timecode from the MLT metadata if available.
1316 const char *timecode = mlt_properties_get( MLT_FRAME_PROPERTIES(frame), "meta.attr.vitc.markup" );
1317 if ( timecode && strcmp( timecode, "" ) )
1319 mlt_properties_set( properties, "timecode", timecode );
1320 if ( strchr( timecode, ';' ) )
1321 mlt_properties_set_int( properties, "drop_frame_timecode", 1 );
1325 // Add audio and video streams
1326 if ( video_codec_id != CODEC_ID_NONE )
1327 video_st = add_video_stream( consumer, oc, video_codec );
1328 if ( audio_codec_id != CODEC_ID_NONE )
1334 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
1336 sprintf( key, "channels.%d", i );
1337 int j = mlt_properties_get_int( properties, key );
1341 total_channels += j;
1342 audio_st[i] = add_audio_stream( consumer, oc, audio_codec, j );
1348 audio_st[0] = add_audio_stream( consumer, oc, audio_codec, channels );
1349 total_channels = channels;
1352 mlt_properties_set_int( properties, "channels", total_channels );
1354 // Audio format is determined when adding the audio stream
1355 mlt_audio_format aud_fmt = mlt_audio_none;
1357 aud_fmt = get_mlt_audio_format( audio_st[0]->codec->sample_fmt );
1358 int sample_bytes = mlt_audio_format_size( aud_fmt, 1, 1 );
1359 sample_bytes = sample_bytes ? sample_bytes : 1; // prevent divide by zero
1361 // Set the parameters (even though we have none...)
1362 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1363 if ( av_set_parameters(oc, NULL) >= 0 )
1366 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1367 if ( mlt_properties_get( properties, "muxpreload" ) && ! mlt_properties_get( properties, "preload" ) )
1368 mlt_properties_set_double( properties, "preload", mlt_properties_get_double( properties, "muxpreload" ) );
1370 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
1372 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
1374 // Process properties as AVOptions
1375 char *fpre = mlt_properties_get( properties, "fpre" );
1378 mlt_properties p = mlt_properties_load( fpre );
1379 apply_properties( oc, p, AV_OPT_FLAG_ENCODING_PARAM );
1380 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(110<<8)+0)
1381 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1382 apply_properties( oc->priv_data, p, AV_OPT_FLAG_ENCODING_PARAM );
1384 mlt_properties_close( p );
1386 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
1387 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(110<<8)+0)
1388 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1389 apply_properties( oc->priv_data, properties, AV_OPT_FLAG_ENCODING_PARAM );
1392 if ( video_st && !open_video( properties, oc, video_st, vcodec? vcodec : NULL ) )
1394 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1396 audio_input_frame_size = open_audio( properties, oc, audio_st[i], audio_outbuf_size,
1397 acodec? acodec : NULL );
1398 if ( !audio_input_frame_size )
1402 // Setup custom I/O if redirecting
1403 if ( mlt_properties_get_int( properties, "redirect" ) )
1405 int buffer_size = 32768;
1406 unsigned char *buffer = av_malloc( buffer_size );
1407 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1408 AVIOContext* io = avio_alloc_context( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1410 ByteIOContext* io = av_alloc_put_byte( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1415 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1416 oc->flags |= AVFMT_FLAG_CUSTOM_IO;
1418 mlt_properties_set_data( properties, "avio_buffer", buffer, buffer_size, av_free, NULL );
1419 mlt_properties_set_data( properties, "avio_context", io, 0, av_free, NULL );
1420 mlt_events_register( properties, "avformat-write", (mlt_transmitter) write_transmitter );
1425 mlt_log_error( MLT_CONSUMER_SERVICE(consumer), "failed to setup output redirection\n" );
1428 // Open the output file, if needed
1429 else if ( !( fmt->flags & AVFMT_NOFILE ) )
1431 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1432 if ( avio_open( &oc->pb, filename, AVIO_FLAG_WRITE ) < 0 )
1434 if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
1437 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not open '%s'\n", filename );
1438 mlt_properties_set_int( properties, "running", 0 );
1442 // Write the stream header.
1443 if ( mlt_properties_get_int( properties, "running" ) )
1444 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(2<<8)+0)
1445 avformat_write_header( oc, NULL );
1447 av_write_header( oc );
1450 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1453 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Invalid output format parameters\n" );
1454 mlt_properties_set_int( properties, "running", 0 );
1460 output = alloc_picture( video_st->codec->pix_fmt, width, height );
1462 // Last check - need at least one stream
1463 if ( !audio_st[0] && !video_st )
1464 mlt_properties_set_int( properties, "running", 0 );
1466 // Get the starting time (can ignore the times above)
1467 gettimeofday( &ante, NULL );
1469 // Loop while running
1470 while( mlt_properties_get_int( properties, "running" ) &&
1471 ( !terminated || ( video_st && mlt_deque_count( queue ) ) ) )
1474 frame = mlt_consumer_rt_frame( consumer );
1476 // Check that we have a frame to work with
1477 if ( frame != NULL )
1479 // Increment frames dispatched
1482 // Default audio args
1483 frame_properties = MLT_FRAME_PROPERTIES( frame );
1485 // Check for the terminated condition
1486 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1488 // Get audio and append to the fifo
1489 if ( !terminated && audio_st[0] )
1491 samples = mlt_sample_calculator( fps, frequency, count ++ );
1492 channels = total_channels;
1493 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
1495 // Save the audio channel remap properties for later
1496 mlt_properties_pass( frame_meta_properties, frame_properties, "meta.map.audio." );
1498 // Create the fifo if we don't have one
1501 fifo = sample_fifo_init( frequency, channels );
1502 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1505 // Silence if not normal forward speed
1506 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1507 memset( pcm, 0, samples * channels * sample_bytes );
1509 // Append the samples
1510 sample_fifo_append( fifo, pcm, samples * channels * sample_bytes );
1511 total_time += ( samples * 1000000 ) / frequency;
1514 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1518 if ( !terminated && video_st )
1519 mlt_deque_push_back( queue, frame );
1521 mlt_frame_close( frame );
1525 // While we have stuff to process, process...
1528 // Write interleaved audio and video frames
1529 if ( !video_st || ( video_st && audio_st[0] && audio_pts < video_pts ) )
1532 if ( ( video_st && terminated ) || ( channels * audio_input_frame_size ) < sample_fifo_used( fifo ) / sample_bytes )
1534 int j = 0; // channel offset into interleaved source buffer
1535 int n = FFMIN( FFMIN( channels * audio_input_frame_size, sample_fifo_used( fifo ) / sample_bytes ), AUDIO_ENCODE_BUFFER_SIZE );
1537 // Get the audio samples
1540 sample_fifo_fetch( fifo, audio_buf_1, n * sample_bytes );
1542 else if ( audio_codec_id == CODEC_ID_VORBIS && terminated )
1544 // This prevents an infinite loop when some versions of vorbis do not
1545 // increment pts when encoding silence.
1546 audio_pts = video_pts;
1551 memset( audio_buf_1, 0, AUDIO_ENCODE_BUFFER_SIZE );
1553 samples = n / channels;
1555 // For each output stream
1556 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i] && j < total_channels; i++ )
1558 AVStream *stream = audio_st[i];
1559 AVCodecContext *codec = stream->codec;
1562 av_init_packet( &pkt );
1564 // Optimized for single track and no channel remap
1565 if ( !audio_st[1] && !mlt_properties_count( frame_meta_properties ) )
1567 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, (short*) audio_buf_1 );
1571 // Extract the audio channels according to channel mapping
1572 int dest_offset = 0; // channel offset into interleaved dest buffer
1574 // Get the number of channels for this stream
1575 sprintf( key, "channels.%d", i );
1576 int current_channels = mlt_properties_get_int( properties, key );
1578 // Clear the destination audio buffer.
1580 audio_buf_2 = av_mallocz( AUDIO_ENCODE_BUFFER_SIZE );
1582 memset( audio_buf_2, 0, AUDIO_ENCODE_BUFFER_SIZE );
1584 // For each output channel
1585 while ( dest_offset < current_channels && j < total_channels )
1587 int map_start = -1, map_channels = 0;
1588 int source_offset = 0;
1591 // Look for a mapping that starts at j
1592 for ( k = 0; k < (MAX_AUDIO_STREAMS * 2) && map_start != j; k++ )
1594 sprintf( key, "%d.channels", k );
1595 map_channels = mlt_properties_get_int( frame_meta_properties, key );
1596 sprintf( key, "%d.start", k );
1597 if ( mlt_properties_get( frame_meta_properties, key ) )
1598 map_start = mlt_properties_get_int( frame_meta_properties, key );
1599 if ( map_start != j )
1600 source_offset += map_channels;
1604 if ( map_start != j )
1606 map_channels = current_channels;
1610 // Copy samples if source offset valid
1611 if ( source_offset < channels )
1613 // Interleave the audio buffer with the # channels for this stream/mapping.
1614 for ( k = 0; k < map_channels; k++, j++, source_offset++, dest_offset++ )
1616 void *src = audio_buf_1 + source_offset * sample_bytes;
1617 void *dest = audio_buf_2 + dest_offset * sample_bytes;
1618 int s = samples + 1;
1621 memcpy( dest, src, sample_bytes );
1622 dest += current_channels * sample_bytes;
1623 src += channels * sample_bytes;
1627 // Otherwise silence
1630 j += current_channels;
1631 dest_offset += current_channels;
1634 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, (short*) audio_buf_2 );
1637 // Write the compressed frame in the media file
1638 if ( codec->coded_frame && codec->coded_frame->pts != AV_NOPTS_VALUE )
1640 pkt.pts = av_rescale_q( codec->coded_frame->pts, codec->time_base, stream->time_base );
1641 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio stream %d pkt pts %"PRId64" frame pts %"PRId64,
1642 stream->index, pkt.pts, codec->coded_frame->pts );
1644 pkt.flags |= PKT_FLAG_KEY;
1645 pkt.stream_index = stream->index;
1646 pkt.data = audio_outbuf;
1650 if ( av_interleaved_write_frame( oc, &pkt ) )
1652 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing audio frame\n" );
1653 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1654 goto on_fatal_error;
1658 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", codec->frame_size );
1661 audio_pts = (double)stream->pts.val * av_q2d( stream->time_base );
1670 else if ( video_st )
1673 if ( mlt_deque_count( queue ) )
1675 int out_size, ret = 0;
1678 frame = mlt_deque_pop_front( queue );
1679 frame_properties = MLT_FRAME_PROPERTIES( frame );
1681 c = video_st->codec;
1683 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1689 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1693 // Convert the mlt frame to an AVPicture
1694 for ( i = 0; i < height; i ++ )
1696 p = input->data[ 0 ] + i * input->linesize[ 0 ];
1697 memcpy( p, q, width * 2 );
1701 // Do the colour space conversion
1703 int flags = SWS_BILINEAR;
1705 flags |= SWS_CPU_CAPS_MMX;
1708 flags |= SWS_CPU_CAPS_MMX2;
1710 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1711 width, height, video_st->codec->pix_fmt, flags, NULL, NULL, NULL);
1712 sws_scale( context, (const uint8_t* const*) input->data, input->linesize, 0, height,
1713 output->data, output->linesize);
1714 sws_freeContext( context );
1716 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1719 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1721 // Apply the alpha if applicable
1722 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1724 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1727 for ( i = 0; i < height; i ++ )
1729 n = ( width + 7 ) / 8;
1730 p = output->data[ 0 ] + i * output->linesize[ 0 ] + 3;
1734 case 0: do { *p = *alpha++; p += 4;
1735 case 7: *p = *alpha++; p += 4;
1736 case 6: *p = *alpha++; p += 4;
1737 case 5: *p = *alpha++; p += 4;
1738 case 4: *p = *alpha++; p += 4;
1739 case 3: *p = *alpha++; p += 4;
1740 case 2: *p = *alpha++; p += 4;
1741 case 1: *p = *alpha++; p += 4;
1749 if (oc->oformat->flags & AVFMT_RAWPICTURE)
1751 // raw video case. The API will change slightly in the near future for that
1753 av_init_packet(&pkt);
1755 pkt.flags |= PKT_FLAG_KEY;
1756 pkt.stream_index= video_st->index;
1757 pkt.data= (uint8_t *)output;
1758 pkt.size= sizeof(AVPicture);
1760 ret = av_write_frame(oc, &pkt);
1761 video_pts += c->frame_size;
1766 output->quality = c->global_quality;
1768 // Set frame interlace hints
1769 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1770 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1771 output->pts = frame_count;
1774 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1776 // If zero size, it means the image was buffered
1780 av_init_packet( &pkt );
1782 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1783 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1784 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pkt pts %"PRId64" frame pts %"PRId64, pkt.pts, c->coded_frame->pts );
1785 if( c->coded_frame && c->coded_frame->key_frame )
1786 pkt.flags |= PKT_FLAG_KEY;
1787 pkt.stream_index= video_st->index;
1788 pkt.data= video_outbuf;
1791 // write the compressed frame in the media file
1792 ret = av_interleaved_write_frame(oc, &pkt);
1793 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", c->frame_size );
1794 video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1796 // Dual pass logging
1797 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1798 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1800 else if ( out_size < 0 )
1802 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with video encode %d\n", frame_count );
1808 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing video frame\n" );
1809 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1810 goto on_fatal_error;
1812 mlt_frame_close( frame );
1821 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio pts %"PRId64" (%f) ", audio_st[0]->pts.val, audio_pts );
1823 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pts %"PRId64" (%f) ", video_st->pts.val, video_pts );
1824 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "\n" );
1827 if ( real_time_output == 1 && frames % 2 == 0 )
1829 long passed = time_difference( &ante );
1832 long pending = ( ( ( long )sample_fifo_used( fifo ) / sample_bytes * 1000 ) / frequency ) * 1000;
1835 if ( passed < total_time )
1837 long total = ( total_time - passed );
1838 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1839 nanosleep( &t, NULL );
1844 // Flush the encoder buffers
1845 if ( real_time_output <= 0 )
1848 // TODO: flush all audio streams
1849 if ( audio_st[0] && audio_st[0]->codec->frame_size > 1 ) for (;;)
1851 AVCodecContext *c = audio_st[0]->codec;
1853 av_init_packet( &pkt );
1856 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1857 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) / sample_bytes ) )
1859 sample_fifo_fetch( fifo, audio_buf_1, channels * audio_input_frame_size * sample_bytes );
1860 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, (short*) audio_buf_1 );
1862 if ( pkt.size <= 0 )
1863 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1864 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
1865 if ( pkt.size <= 0 )
1868 // Write the compressed frame in the media file
1869 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1870 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st[0]->time_base );
1871 pkt.flags |= PKT_FLAG_KEY;
1872 pkt.stream_index = audio_st[0]->index;
1873 pkt.data = audio_outbuf;
1874 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1876 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing flushed audio frame\n" );
1877 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1878 goto on_fatal_error;
1883 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1885 AVCodecContext *c = video_st->codec;
1887 av_init_packet( &pkt );
1890 pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1891 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing video size %d\n", pkt.size );
1892 if ( pkt.size <= 0 )
1895 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1896 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1897 if( c->coded_frame && c->coded_frame->key_frame )
1898 pkt.flags |= PKT_FLAG_KEY;
1899 pkt.stream_index = video_st->index;
1900 pkt.data = video_outbuf;
1902 // write the compressed frame in the media file
1903 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1905 mlt_log_fatal( MLT_CONSUMER_SERVICE(consumer), "error writing flushed video frame\n" );
1906 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1907 goto on_fatal_error;
1909 // Dual pass logging
1910 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1911 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1917 // Write the trailer, if any
1918 av_write_trailer( oc );
1922 close_video(oc, video_st);
1923 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1924 close_audio( oc, audio_st[i] );
1927 for ( i = 0; i < oc->nb_streams; i++ )
1928 av_freep( &oc->streams[i] );
1930 // Close the output file
1931 if ( !( fmt->flags & AVFMT_NOFILE ) )
1933 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1934 if ( !mlt_properties_get_int( properties, "redirect" ) )
1935 avio_close( oc->pb );
1936 #elif LIBAVFORMAT_VERSION_MAJOR >= 52
1937 url_fclose( oc->pb );
1939 url_fclose( &oc->pb );
1943 // Clean up input and output frames
1945 av_free( output->data[0] );
1947 av_free( input->data[0] );
1949 av_free( video_outbuf );
1950 av_free( audio_buf_1 );
1951 av_free( audio_buf_2 );
1956 // Just in case we terminated on pause
1957 mlt_properties_set_int( properties, "running", 0 );
1959 mlt_consumer_stopped( consumer );
1960 mlt_properties_close( frame_meta_properties );
1962 if ( mlt_properties_get_int( properties, "pass" ) > 1 )
1964 // Remove the dual pass log file
1965 if ( mlt_properties_get( properties, "_logfilename" ) )
1966 remove( mlt_properties_get( properties, "_logfilename" ) );
1968 // Remove the x264 dual pass logs
1969 char *cwd = getcwd( NULL, 0 );
1970 const char *file = "x264_2pass.log";
1971 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1972 sprintf( full, "%s/%s", cwd, file );
1975 file = "x264_2pass.log.temp";
1976 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1977 sprintf( full, "%s/%s", cwd, file );
1980 file = "x264_2pass.log.mbtree";
1981 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1982 sprintf( full, "%s/%s", cwd, file );
1986 remove( "x264_2pass.log.temp" );
1989 while ( ( frame = mlt_deque_pop_back( queue ) ) )
1990 mlt_frame_close( frame );
1995 /** Close the consumer.
1998 static void consumer_close( mlt_consumer consumer )
2000 // Stop the consumer
2001 mlt_consumer_stop( consumer );
2004 mlt_consumer_close( consumer );