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 // Ensure termination at end of the stream
182 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
184 // Default to separate processing threads for producer and consumer with no frame dropping!
185 mlt_properties_set_int( properties, "real_time", -1 );
186 mlt_properties_set_int( properties, "prefill", 1 );
188 // Set up start/stop/terminated callbacks
189 consumer->start = consumer_start;
190 consumer->stop = consumer_stop;
191 consumer->is_stopped = consumer_is_stopped;
193 mlt_events_register( properties, "consumer-fatal-error", NULL );
200 /** Start the consumer.
203 static int consumer_start( mlt_consumer consumer )
205 // Get the properties
206 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
209 // Report information about available muxers and codecs as YAML Tiny
210 char *s = mlt_properties_get( properties, "f" );
211 if ( s && strcmp( s, "list" ) == 0 )
213 mlt_properties doc = mlt_properties_new();
214 mlt_properties formats = mlt_properties_new();
216 AVOutputFormat *format = NULL;
218 mlt_properties_set_data( properties, "f", formats, 0, (mlt_destructor) mlt_properties_close, NULL );
219 mlt_properties_set_data( doc, "formats", formats, 0, NULL, NULL );
220 while ( ( format = av_oformat_next( format ) ) )
222 snprintf( key, sizeof(key), "%d", mlt_properties_count( formats ) );
223 mlt_properties_set( formats, key, format->name );
225 s = mlt_properties_serialise_yaml( doc );
226 fprintf( stdout, "%s", s );
228 mlt_properties_close( doc );
231 s = mlt_properties_get( properties, "acodec" );
232 if ( s && strcmp( s, "list" ) == 0 )
234 mlt_properties doc = mlt_properties_new();
235 mlt_properties codecs = mlt_properties_new();
237 AVCodec *codec = NULL;
239 mlt_properties_set_data( properties, "acodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
240 mlt_properties_set_data( doc, "audio_codecs", codecs, 0, NULL, NULL );
241 while ( ( codec = av_codec_next( codec ) ) )
242 #if (defined(FFUDIV) && LIBAVCODEC_VERSION_INT >= ((54<<16)+(56<<8)+100)) || (LIBAVCODEC_VERSION_INT >= ((54<<16)+(27<<8)+0))
243 if ( codec->encode2 && codec->type == CODEC_TYPE_AUDIO )
244 #elif LIBAVCODEC_VERSION_INT >= ((54<<16)+(0<<8)+0)
245 if ( ( codec->encode || codec->encode2 ) && codec->type == CODEC_TYPE_AUDIO )
247 if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
250 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
251 mlt_properties_set( codecs, key, codec->name );
253 s = mlt_properties_serialise_yaml( doc );
254 fprintf( stdout, "%s", s );
256 mlt_properties_close( doc );
259 s = mlt_properties_get( properties, "vcodec" );
260 if ( s && strcmp( s, "list" ) == 0 )
262 mlt_properties doc = mlt_properties_new();
263 mlt_properties codecs = mlt_properties_new();
265 AVCodec *codec = NULL;
267 mlt_properties_set_data( properties, "vcodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
268 mlt_properties_set_data( doc, "video_codecs", codecs, 0, NULL, NULL );
269 while ( ( codec = av_codec_next( codec ) ) )
270 #if (defined(FFUDIV) && LIBAVCODEC_VERSION_INT >= ((54<<16)+(56<<8)+100)) || (LIBAVCODEC_VERSION_INT >= ((54<<16)+(27<<8)+0))
271 if ( codec->encode2 && codec->type == CODEC_TYPE_VIDEO )
272 #elif LIBAVCODEC_VERSION_INT >= ((54<<16)+(0<<8)+0)
273 if ( (codec->encode || codec->encode2) && codec->type == CODEC_TYPE_VIDEO )
275 if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
278 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
279 mlt_properties_set( codecs, key, codec->name );
281 s = mlt_properties_serialise_yaml( doc );
282 fprintf( stdout, "%s", s );
284 mlt_properties_close( doc );
288 // Check that we're not already running
289 if ( !error && !mlt_properties_get_int( properties, "running" ) )
292 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
294 // Get the width and height
295 int width = mlt_properties_get_int( properties, "width" );
296 int height = mlt_properties_get_int( properties, "height" );
298 // Obtain the size property
299 char *size = mlt_properties_get( properties, "s" );
305 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
312 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Invalid size property %s - ignoring.\n", size );
316 // Now ensure we honour the multiple of two requested by libavformat
317 width = ( width / 2 ) * 2;
318 height = ( height / 2 ) * 2;
319 mlt_properties_set_int( properties, "width", width );
320 mlt_properties_set_int( properties, "height", height );
322 // We need to set these on the profile as well because the s property is
323 // an alias to mlt properties that correspond to profile settings.
324 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
327 profile->width = width;
328 profile->height = height;
331 if ( mlt_properties_get( properties, "aspect" ) )
333 // "-aspect" on ffmpeg command line is display aspect ratio
334 double ar = mlt_properties_get_double( properties, "aspect" );
335 AVRational rational = av_d2q( ar, 255 );
337 // Update the profile and properties as well since this is an alias
338 // for mlt properties that correspond to profile settings
339 mlt_properties_set_int( properties, "display_aspect_num", rational.num );
340 mlt_properties_set_int( properties, "display_aspect_den", rational.den );
343 profile->display_aspect_num = rational.num;
344 profile->display_aspect_den = rational.den;
345 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
348 // Now compute the sample aspect ratio
349 rational = av_d2q( ar * height / width, 255 );
351 // Update the profile and properties as well since this is an alias
352 // for mlt properties that correspond to profile settings
353 mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
354 mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
357 profile->sample_aspect_num = rational.num;
358 profile->sample_aspect_den = rational.den;
359 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
363 // Handle the ffmpeg command line "-r" property for frame rate
364 if ( mlt_properties_get( properties, "r" ) )
366 double frame_rate = mlt_properties_get_double( properties, "r" );
367 AVRational rational = av_d2q( frame_rate, 255 );
368 mlt_properties_set_int( properties, "frame_rate_num", rational.num );
369 mlt_properties_set_int( properties, "frame_rate_den", rational.den );
372 profile->frame_rate_num = rational.num;
373 profile->frame_rate_den = rational.den;
374 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
378 // Apply AVOptions that are synonyms for standard mlt_consumer options
379 if ( mlt_properties_get( properties, "ac" ) )
380 mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
381 if ( mlt_properties_get( properties, "ar" ) )
382 mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
384 // Assign the thread to properties
385 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
388 pthread_create( thread, NULL, consumer_thread, consumer );
390 // Set the running state
391 mlt_properties_set_int( properties, "running", 1 );
396 /** Stop the consumer.
399 static int consumer_stop( mlt_consumer consumer )
401 // Get the properties
402 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
403 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
405 // Check that we're running
409 mlt_properties_set_int( properties, "running", 0 );
411 // Wait for termination
412 pthread_join( *thread, NULL );
414 mlt_properties_set_data( properties, "thread", NULL, 0, NULL, NULL );
420 /** Determine if the consumer is stopped.
423 static int consumer_is_stopped( mlt_consumer consumer )
425 // Get the properties
426 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
427 return !mlt_properties_get_int( properties, "running" );
430 /** Process properties as AVOptions and apply to AV context obj
433 static void apply_properties( void *obj, mlt_properties properties, int flags )
436 int count = mlt_properties_count( properties );
437 #if LIBAVUTIL_VERSION_INT < ((51<<16)+(12<<8)+0)
441 for ( i = 0; i < count; i++ )
443 const char *opt_name = mlt_properties_get_name( properties, i );
444 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(10<<8)+0)
445 const AVOption *opt = av_opt_find( obj, opt_name, NULL, flags, flags );
447 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
450 // If option not found, see if it was prefixed with a or v (-vb)
452 ( opt_name[0] == 'v' && ( flags & AV_OPT_FLAG_VIDEO_PARAM ) ) ||
453 ( opt_name[0] == 'a' && ( flags & AV_OPT_FLAG_AUDIO_PARAM ) ) ) )
454 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(10<<8)+0)
455 opt = av_opt_find( obj, ++opt_name, NULL, flags, flags );
457 opt = av_find_opt( obj, ++opt_name, NULL, flags, flags );
459 // Apply option if found
461 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(12<<8)+0)
462 av_opt_set( obj, opt_name, mlt_properties_get_value( properties, i), 0 );
463 #elif LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
464 av_set_string3( obj, opt_name, mlt_properties_get_value( properties, i), alloc, NULL );
465 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
466 av_set_string2( obj, opt_name, mlt_properties_get_value( properties, i), alloc );
468 av_set_string( obj, opt_name, mlt_properties_get_value( properties, i) );
473 static int get_mlt_audio_format( int av_sample_fmt )
475 switch ( av_sample_fmt )
477 case AV_SAMPLE_FMT_U8:
479 case AV_SAMPLE_FMT_S32:
480 return mlt_audio_s32le;
481 case AV_SAMPLE_FMT_FLT:
482 return mlt_audio_f32le;
483 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
484 case AV_SAMPLE_FMT_U8P:
486 case AV_SAMPLE_FMT_S32P:
487 return mlt_audio_s32le;
488 case AV_SAMPLE_FMT_FLTP:
489 return mlt_audio_f32le;
492 return mlt_audio_s16;
496 static int pick_sample_fmt( mlt_properties properties, AVCodec *codec )
498 int sample_fmt = AV_SAMPLE_FMT_S16;
499 const char *format = mlt_properties_get( properties, "mlt_audio_format" );
500 const int *p = codec->sample_fmts;
502 // get default av_sample_fmt from mlt_audio_format
505 if ( !strcmp( format, "s32le" ) )
506 sample_fmt = AV_SAMPLE_FMT_S32;
507 else if ( !strcmp( format, "f32le" ) )
508 sample_fmt = AV_SAMPLE_FMT_FLT;
509 else if ( !strcmp( format, "u8" ) )
510 sample_fmt = AV_SAMPLE_FMT_U8;
511 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
512 else if ( !strcmp( format, "s32" ) )
513 sample_fmt = AV_SAMPLE_FMT_S32P;
514 else if ( !strcmp( format, "float" ) )
515 sample_fmt = AV_SAMPLE_FMT_FLTP;
518 // check if codec supports our mlt_audio_format
519 for ( ; *p != -1; p++ )
521 if ( *p == sample_fmt )
524 // no match - pick first one we support
525 for ( p = codec->sample_fmts; *p != -1; p++ )
529 case AV_SAMPLE_FMT_U8:
530 case AV_SAMPLE_FMT_S16:
531 case AV_SAMPLE_FMT_S32:
532 case AV_SAMPLE_FMT_FLT:
533 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
534 case AV_SAMPLE_FMT_U8P:
535 case AV_SAMPLE_FMT_S16P:
536 case AV_SAMPLE_FMT_S32P:
537 case AV_SAMPLE_FMT_FLTP:
544 mlt_log_error( properties, "audio codec sample_fmt not compatible" );
546 return AV_SAMPLE_FMT_NONE;
549 static uint8_t* interleaved_to_planar( int samples, int channels, uint8_t* audio, int bytes_per_sample )
551 int size = samples * channels * bytes_per_sample;
552 uint8_t *buffer = mlt_pool_alloc( AUDIO_ENCODE_BUFFER_SIZE );
556 memset( buffer, 0, AUDIO_ENCODE_BUFFER_SIZE );
557 for ( c = 0; c < channels; c++ )
559 uint8_t *q = audio + c * bytes_per_sample;
563 memcpy( p, q, bytes_per_sample );
564 p += bytes_per_sample;
565 q += channels * bytes_per_sample;
571 /** Add an audio output stream
574 static AVStream *add_audio_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec, int channels )
576 // Get the properties
577 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
579 // Create a new stream
580 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
581 AVStream *st = avformat_new_stream( oc, codec );
583 AVStream *st = av_new_stream( oc, oc->nb_streams );
586 // If created, then initialise from properties
589 AVCodecContext *c = st->codec;
591 // Establish defaults from AVOptions
592 #if LIBAVCODEC_VERSION_MAJOR >= 53
593 avcodec_get_context_defaults3( c, codec );
595 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
598 c->codec_id = codec->id;
599 c->codec_type = CODEC_TYPE_AUDIO;
600 c->sample_fmt = pick_sample_fmt( properties, codec );
602 #if 0 // disabled until some audio codecs are multi-threaded
603 // Setup multi-threading
604 int thread_count = mlt_properties_get_int( properties, "threads" );
605 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
606 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
607 if ( thread_count > 1 )
608 c->thread_count = thread_count;
611 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
612 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
614 // Allow the user to override the audio fourcc
615 if ( mlt_properties_get( properties, "atag" ) )
618 char *arg = mlt_properties_get( properties, "atag" );
619 int tag = strtol( arg, &tail, 0);
621 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
625 // Process properties as AVOptions
626 char *apre = mlt_properties_get( properties, "apre" );
629 mlt_properties p = mlt_properties_load( apre );
630 apply_properties( c, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
631 mlt_properties_close( p );
633 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
635 int audio_qscale = mlt_properties_get_int( properties, "aq" );
636 if ( audio_qscale > QSCALE_NONE )
638 c->flags |= CODEC_FLAG_QSCALE;
639 c->global_quality = FF_QP2LAMBDA * audio_qscale;
640 #if LIBAVFORMAT_VERSION_MAJOR < 53
641 st->quality = c->global_quality;
645 // Set parameters controlled by MLT
646 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
647 c->time_base = ( AVRational ){ 1, c->sample_rate };
648 c->channels = channels;
650 if ( mlt_properties_get( properties, "alang" ) != NULL )
651 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
652 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
653 av_dict_set( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
655 av_metadata_set2( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
659 strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
664 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for audio\n" );
670 static int open_audio( mlt_properties properties, AVFormatContext *oc, AVStream *st, int audio_outbuf_size, const char *codec_name )
672 // We will return the audio input size from here
673 int audio_input_frame_size = 0;
676 AVCodecContext *c = st->codec;
681 codec = avcodec_find_encoder_by_name( codec_name );
683 codec = avcodec_find_encoder( c->codec_id );
685 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(122<<8)+0)
686 // Process properties as AVOptions on the AVCodec
687 if ( codec && codec->priv_class )
689 char *apre = mlt_properties_get( properties, "apre" );
690 if ( !c->priv_data && codec->priv_data_size )
692 c->priv_data = av_mallocz( codec->priv_data_size );
693 *(const AVClass **) c->priv_data = codec->priv_class;
694 // av_opt_set_defaults( c );
698 mlt_properties p = mlt_properties_load( apre );
699 apply_properties( c->priv_data, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
700 mlt_properties_close( p );
702 apply_properties( c->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
706 // Continue if codec found and we can open it
707 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
708 if ( codec && avcodec_open2( c, codec, NULL ) >= 0 )
710 if ( codec && avcodec_open( c, codec ) >= 0 )
713 // ugly hack for PCM codecs (will be removed ASAP with new PCM
714 // support to compute the input frame size in samples
715 if ( c->frame_size <= 1 )
717 audio_input_frame_size = audio_outbuf_size / c->channels;
718 switch(st->codec->codec_id)
720 case CODEC_ID_PCM_S16LE:
721 case CODEC_ID_PCM_S16BE:
722 case CODEC_ID_PCM_U16LE:
723 case CODEC_ID_PCM_U16BE:
724 audio_input_frame_size >>= 1;
732 audio_input_frame_size = c->frame_size;
735 // Some formats want stream headers to be seperate (hmm)
736 if ( !strcmp( oc->oformat->name, "mp4" ) ||
737 !strcmp( oc->oformat->name, "mov" ) ||
738 !strcmp( oc->oformat->name, "3gp" ) )
739 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
743 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
744 audio_input_frame_size = 0;
747 return audio_input_frame_size;
750 static void close_audio( AVFormatContext *oc, AVStream *st )
752 if ( st && st->codec )
753 avcodec_close( st->codec );
756 /** Add a video output stream
759 static AVStream *add_video_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec )
761 // Get the properties
762 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
764 // Create a new stream
765 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
766 AVStream *st = avformat_new_stream( oc, codec );
768 AVStream *st = av_new_stream( oc, oc->nb_streams );
773 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
774 AVCodecContext *c = st->codec;
776 // Establish defaults from AVOptions
777 #if LIBAVCODEC_VERSION_MAJOR >= 53
778 avcodec_get_context_defaults3( c, codec );
780 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
783 c->codec_id = codec->id;
784 c->codec_type = CODEC_TYPE_VIDEO;
786 // Setup multi-threading
787 int thread_count = mlt_properties_get_int( properties, "threads" );
788 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
789 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
790 if ( thread_count > 1 )
791 #if LIBAVCODEC_VERSION_MAJOR >= 53
792 c->thread_count = thread_count;
794 avcodec_thread_init( c, thread_count );
797 // Process properties as AVOptions
798 char *vpre = mlt_properties_get( properties, "vpre" );
801 mlt_properties p = mlt_properties_load( vpre );
803 if ( mlt_properties_count( p ) < 1 )
805 AVCodec *codec = avcodec_find_encoder( c->codec_id );
808 char *path = malloc( strlen(AVDATADIR) + strlen(codec->name) + strlen(vpre) + strlen(".ffpreset") + 2 );
809 strcpy( path, AVDATADIR );
810 strcat( path, codec->name );
812 strcat( path, vpre );
813 strcat( path, ".ffpreset" );
815 mlt_properties_close( p );
816 p = mlt_properties_load( path );
817 if ( mlt_properties_count( p ) > 0 )
818 mlt_properties_debug( p, path, stderr );
824 mlt_properties_debug( p, vpre, stderr );
827 apply_properties( c, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
828 mlt_properties_close( p );
830 int colorspace = mlt_properties_get_int( properties, "colorspace" );
831 mlt_properties_set( properties, "colorspace", NULL );
832 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
833 mlt_properties_set_int( properties, "colorspace", colorspace );
835 // Set options controlled by MLT
836 c->width = mlt_properties_get_int( properties, "width" );
837 c->height = mlt_properties_get_int( properties, "height" );
838 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
839 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
840 if ( st->time_base.den == 0 )
841 st->time_base = c->time_base;
842 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
843 c->pix_fmt = pix_fmt ? av_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
845 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
848 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
849 switch ( colorspace )
852 c->colorspace = AVCOL_SPC_SMPTE170M;
855 c->colorspace = AVCOL_SPC_SMPTE240M;
858 c->colorspace = AVCOL_SPC_BT470BG;
861 c->colorspace = ( 576 % c->height ) ? AVCOL_SPC_SMPTE170M : AVCOL_SPC_BT470BG;
864 c->colorspace = AVCOL_SPC_BT709;
869 if ( mlt_properties_get( properties, "aspect" ) )
871 // "-aspect" on ffmpeg command line is display aspect ratio
872 double ar = mlt_properties_get_double( properties, "aspect" );
873 c->sample_aspect_ratio = av_d2q( ar * c->height / c->width, 255 );
877 c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
878 c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
880 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
881 st->sample_aspect_ratio = c->sample_aspect_ratio;
884 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
886 c->flags |= CODEC_FLAG_QSCALE;
887 c->global_quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
888 #if LIBAVFORMAT_VERSION_MAJOR < 53
889 st->quality = c->global_quality;
893 // Allow the user to override the video fourcc
894 if ( mlt_properties_get( properties, "vtag" ) )
897 const char *arg = mlt_properties_get( properties, "vtag" );
898 int tag = strtol( arg, &tail, 0);
900 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
904 // Some formats want stream headers to be seperate
905 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
906 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
908 // Translate these standard mlt consumer properties to ffmpeg
909 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
910 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
912 if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
913 c->flags |= CODEC_FLAG_INTERLACED_DCT;
914 if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
915 c->flags |= CODEC_FLAG_INTERLACED_ME;
918 // parse the ratecontrol override string
920 char *rc_override = mlt_properties_get( properties, "rc_override" );
921 for ( i = 0; rc_override; i++ )
924 int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
926 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Error parsing rc_override\n" );
927 c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
928 c->rc_override[i].start_frame = start;
929 c->rc_override[i].end_frame = end;
932 c->rc_override[i].qscale = q;
933 c->rc_override[i].quality_factor = 1.0;
937 c->rc_override[i].qscale = 0;
938 c->rc_override[i].quality_factor = -q / 100.0;
940 rc_override = strchr( rc_override, '/' );
944 c->rc_override_count = i;
945 if ( !c->rc_initial_buffer_occupancy )
946 c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
947 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
950 i = mlt_properties_get_int( properties, "pass" );
952 c->flags |= CODEC_FLAG_PASS1;
954 c->flags |= CODEC_FLAG_PASS2;
955 if ( codec->id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
957 char logfilename[1024];
962 snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
963 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
964 if ( c->flags & CODEC_FLAG_PASS1 )
966 f = fopen( logfilename, "w" );
968 perror( logfilename );
970 mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
974 /* read the log file */
975 f = fopen( logfilename, "r" );
982 mlt_properties_set( properties, "_logfilename", logfilename );
983 fseek( f, 0, SEEK_END );
985 fseek( f, 0, SEEK_SET );
986 logbuffer = av_malloc( size + 1 );
988 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate log buffer\n" );
993 size = fread( logbuffer, 1, size, f );
994 logbuffer[size] = '\0';
995 c->stats_in = logbuffer;
1005 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for video\n" );
1011 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
1014 AVFrame *picture = avcodec_alloc_frame();
1016 // Determine size of the
1017 int size = avpicture_get_size(pix_fmt, width, height);
1019 // Allocate the picture buf
1020 uint8_t *picture_buf = av_malloc(size);
1022 // If we have both, then fill the image
1023 if ( picture != NULL && picture_buf != NULL )
1025 // Fill the frame with the allocated buffer
1026 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
1030 // Something failed - clean up what we can
1032 av_free( picture_buf );
1039 static int open_video( mlt_properties properties, AVFormatContext *oc, AVStream *st, const char *codec_name )
1042 AVCodecContext *video_enc = st->codec;
1044 // find the video encoder
1047 codec = avcodec_find_encoder_by_name( codec_name );
1049 codec = avcodec_find_encoder( video_enc->codec_id );
1051 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(122<<8)+0)
1052 // Process properties as AVOptions on the AVCodec
1053 if ( codec && codec->priv_class )
1055 char *vpre = mlt_properties_get( properties, "vpre" );
1056 if ( !video_enc->priv_data && codec->priv_data_size )
1058 video_enc->priv_data = av_mallocz( codec->priv_data_size );
1059 *(const AVClass **) video_enc->priv_data = codec->priv_class;
1060 // av_opt_set_defaults( video_enc );
1064 mlt_properties p = mlt_properties_load( vpre );
1065 apply_properties( video_enc->priv_data, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
1066 mlt_properties_close( p );
1068 apply_properties( video_enc->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
1072 if( codec && codec->pix_fmts )
1074 const enum PixelFormat *p = codec->pix_fmts;
1075 for( ; *p!=-1; p++ )
1077 if( *p == video_enc->pix_fmt )
1081 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
1084 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
1085 int result = codec && avcodec_open2( video_enc, codec, NULL ) >= 0;
1087 int result = codec && avcodec_open( video_enc, codec ) >= 0;
1093 void close_video(AVFormatContext *oc, AVStream *st)
1095 if ( st && st->codec )
1097 av_freep( &st->codec->stats_in );
1098 avcodec_close(st->codec);
1102 static inline long time_difference( struct timeval *time1 )
1104 struct timeval time2;
1105 gettimeofday( &time2, NULL );
1106 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
1109 static int mlt_write(void *h, uint8_t *buf, int size)
1111 mlt_properties properties = (mlt_properties) h;
1112 mlt_events_fire( properties, "avformat-write", buf, size, NULL );
1116 static void write_transmitter( mlt_listener listener, mlt_properties owner, mlt_service service, void **args )
1118 listener( owner, service, (uint8_t*) args[0], (int) args[1] );
1121 /** The main thread - the argument is simply the consumer.
1124 static void *consumer_thread( void *arg )
1126 // Map the argument to the object
1127 mlt_consumer consumer = arg;
1129 // Get the properties
1130 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
1132 // Get the terminate on pause property
1133 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
1136 // Determine if feed is slow (for realtime stuff)
1137 int real_time_output = mlt_properties_get_int( properties, "real_time" );
1140 struct timeval ante;
1142 // Get the frame rate
1143 double fps = mlt_properties_get_double( properties, "fps" );
1145 // Get width and height
1146 int width = mlt_properties_get_int( properties, "width" );
1147 int height = mlt_properties_get_int( properties, "height" );
1148 int img_width = width;
1149 int img_height = height;
1151 // Get default audio properties
1152 int channels = mlt_properties_get_int( properties, "channels" );
1153 int total_channels = channels;
1154 int frequency = mlt_properties_get_int( properties, "frequency" );
1158 // AVFormat audio buffer and frame size
1159 int audio_outbuf_size = AUDIO_BUFFER_SIZE;
1160 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
1161 int audio_input_frame_size = 0;
1163 // AVFormat video buffer and frame count
1164 int frame_count = 0;
1165 int video_outbuf_size = VIDEO_BUFFER_SIZE;
1166 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
1168 // Used for the frame properties
1169 mlt_frame frame = NULL;
1170 mlt_properties frame_properties = NULL;
1173 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
1174 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
1176 // Need two av pictures for converting
1177 AVFrame *output = NULL;
1178 AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
1180 // For receiving images from an mlt_frame
1182 mlt_image_format img_fmt = mlt_image_yuv422;
1184 // For receiving audio samples back from the fifo
1185 uint8_t *audio_buf_1 = av_malloc( AUDIO_ENCODE_BUFFER_SIZE );
1186 uint8_t *audio_buf_2 = NULL;
1189 // Allocate the context
1190 #if (LIBAVFORMAT_VERSION_INT >= ((52<<16)+(26<<8)+0))
1191 AVFormatContext *oc = avformat_alloc_context( );
1193 AVFormatContext *oc = av_alloc_format_context( );
1197 AVStream *video_st = NULL;
1198 AVStream *audio_st[ MAX_AUDIO_STREAMS ];
1201 double audio_pts = 0;
1202 double video_pts = 0;
1204 // Frames dispatched
1205 long int frames = 0;
1206 long int total_time = 0;
1208 // Determine the format
1209 AVOutputFormat *fmt = NULL;
1210 const char *filename = mlt_properties_get( properties, "target" );
1211 char *format = mlt_properties_get( properties, "f" );
1212 char *vcodec = mlt_properties_get( properties, "vcodec" );
1213 char *acodec = mlt_properties_get( properties, "acodec" );
1214 AVCodec *audio_codec = NULL;
1215 AVCodec *video_codec = NULL;
1217 // Used to store and override codec ids
1223 mlt_properties frame_meta_properties = mlt_properties_new();
1225 // Initialize audio_st
1226 int i = MAX_AUDIO_STREAMS;
1230 // Check for user selected format first
1231 if ( format != NULL )
1232 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1233 fmt = guess_format( format, NULL, NULL );
1235 fmt = av_guess_format( format, NULL, NULL );
1238 // Otherwise check on the filename
1239 if ( fmt == NULL && filename != NULL )
1240 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1241 fmt = guess_format( NULL, filename, NULL );
1243 fmt = av_guess_format( NULL, filename, NULL );
1246 // Otherwise default to mpeg
1248 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1249 fmt = guess_format( "mpeg", NULL, NULL );
1251 fmt = av_guess_format( "mpeg", NULL, NULL );
1254 // We need a filename - default to stdout?
1255 if ( filename == NULL || !strcmp( filename, "" ) )
1258 // Get the codec ids selected
1259 audio_codec_id = fmt->audio_codec;
1260 video_codec_id = fmt->video_codec;
1262 // Check for audio codec overides
1263 if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
1264 audio_codec_id = CODEC_ID_NONE;
1267 audio_codec = avcodec_find_encoder_by_name( acodec );
1270 audio_codec_id = audio_codec->id;
1271 if ( audio_codec_id == CODEC_ID_AC3 && avcodec_find_encoder_by_name( "ac3_fixed" ) )
1273 mlt_properties_set( properties, "_acodec", "ac3_fixed" );
1274 acodec = mlt_properties_get( properties, "_acodec" );
1275 audio_codec = avcodec_find_encoder_by_name( acodec );
1277 else if ( !strcmp( acodec, "aac" ) )
1279 mlt_properties_set( properties, "astrict", "experimental" );
1284 audio_codec_id = CODEC_ID_NONE;
1285 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "audio codec %s unrecognised - ignoring\n", acodec );
1290 audio_codec = avcodec_find_encoder( audio_codec_id );
1293 // Check for video codec overides
1294 if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
1295 video_codec_id = CODEC_ID_NONE;
1298 video_codec = avcodec_find_encoder_by_name( vcodec );
1301 video_codec_id = video_codec->id;
1305 video_codec_id = CODEC_ID_NONE;
1306 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "video codec %s unrecognised - ignoring\n", vcodec );
1311 video_codec = avcodec_find_encoder( video_codec_id );
1315 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
1316 for ( i = 0; i < mlt_properties_count( properties ); i++ )
1318 char *name = mlt_properties_get_name( properties, i );
1319 if ( name && !strncmp( name, "meta.attr.", 10 ) )
1321 char *key = strdup( name + 10 );
1322 char *markup = strrchr( key, '.' );
1323 if ( markup && !strcmp( markup, ".markup") )
1326 if ( !strstr( key, ".stream." ) )
1327 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
1328 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
1329 av_dict_set( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1331 av_metadata_set2( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1334 av_metadata_set( &oc->metadata, key, mlt_properties_get_value( properties, i ) );
1344 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
1345 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
1347 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
1348 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
1350 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
1351 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
1353 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
1354 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
1356 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
1357 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
1359 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
1360 if (metavalue != 0) oc->year = metavalue;
1362 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
1363 if (metavalue != 0) oc->track = metavalue;
1367 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
1369 // Get a frame now, so we can set some AVOptions from properties.
1370 frame = mlt_consumer_rt_frame( consumer );
1372 // Set the timecode from the MLT metadata if available.
1375 const char *timecode = mlt_properties_get( MLT_FRAME_PROPERTIES(frame), "meta.attr.vitc.markup" );
1376 if ( timecode && strcmp( timecode, "" ) )
1378 mlt_properties_set( properties, "timecode", timecode );
1379 if ( strchr( timecode, ';' ) )
1380 mlt_properties_set_int( properties, "drop_frame_timecode", 1 );
1384 // Add audio and video streams
1385 if ( video_codec_id != CODEC_ID_NONE )
1386 video_st = add_video_stream( consumer, oc, video_codec );
1387 if ( audio_codec_id != CODEC_ID_NONE )
1393 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
1395 sprintf( key, "channels.%d", i );
1396 int j = mlt_properties_get_int( properties, key );
1400 total_channels += j;
1401 audio_st[i] = add_audio_stream( consumer, oc, audio_codec, j );
1407 audio_st[0] = add_audio_stream( consumer, oc, audio_codec, channels );
1408 total_channels = channels;
1411 mlt_properties_set_int( properties, "channels", total_channels );
1413 // Audio format is determined when adding the audio stream
1414 mlt_audio_format aud_fmt = mlt_audio_none;
1416 aud_fmt = get_mlt_audio_format( audio_st[0]->codec->sample_fmt );
1417 int sample_bytes = mlt_audio_format_size( aud_fmt, 1, 1 );
1418 sample_bytes = sample_bytes ? sample_bytes : 1; // prevent divide by zero
1420 // Set the parameters (even though we have none...)
1421 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1422 if ( av_set_parameters(oc, NULL) >= 0 )
1425 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1426 if ( mlt_properties_get( properties, "muxpreload" ) && ! mlt_properties_get( properties, "preload" ) )
1427 mlt_properties_set_double( properties, "preload", mlt_properties_get_double( properties, "muxpreload" ) );
1429 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
1431 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
1433 // Process properties as AVOptions
1434 char *fpre = mlt_properties_get( properties, "fpre" );
1437 mlt_properties p = mlt_properties_load( fpre );
1438 apply_properties( oc, p, AV_OPT_FLAG_ENCODING_PARAM );
1439 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(110<<8)+0)
1440 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1441 apply_properties( oc->priv_data, p, AV_OPT_FLAG_ENCODING_PARAM );
1443 mlt_properties_close( p );
1445 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
1446 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(110<<8)+0)
1447 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1448 apply_properties( oc->priv_data, properties, AV_OPT_FLAG_ENCODING_PARAM );
1451 if ( video_st && !open_video( properties, oc, video_st, vcodec? vcodec : NULL ) )
1453 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1455 audio_input_frame_size = open_audio( properties, oc, audio_st[i], audio_outbuf_size,
1456 acodec? acodec : NULL );
1457 if ( !audio_input_frame_size )
1459 // Remove the audio stream from the output context
1461 for ( j = 0; j < oc->nb_streams; j++ )
1463 if ( oc->streams[j] == audio_st[i] )
1464 av_freep( &oc->streams[j] );
1471 // Setup custom I/O if redirecting
1472 if ( mlt_properties_get_int( properties, "redirect" ) )
1474 int buffer_size = 32768;
1475 unsigned char *buffer = av_malloc( buffer_size );
1476 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1477 AVIOContext* io = avio_alloc_context( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1479 ByteIOContext* io = av_alloc_put_byte( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1484 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1485 oc->flags |= AVFMT_FLAG_CUSTOM_IO;
1487 mlt_properties_set_data( properties, "avio_buffer", buffer, buffer_size, av_free, NULL );
1488 mlt_properties_set_data( properties, "avio_context", io, 0, av_free, NULL );
1489 mlt_events_register( properties, "avformat-write", (mlt_transmitter) write_transmitter );
1494 mlt_log_error( MLT_CONSUMER_SERVICE(consumer), "failed to setup output redirection\n" );
1497 // Open the output file, if needed
1498 else if ( !( fmt->flags & AVFMT_NOFILE ) )
1500 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1501 if ( avio_open( &oc->pb, filename, AVIO_FLAG_WRITE ) < 0 )
1503 if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
1506 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not open '%s'\n", filename );
1507 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1508 goto on_fatal_error;
1512 // Write the stream header.
1513 if ( mlt_properties_get_int( properties, "running" ) )
1514 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(2<<8)+0)
1515 avformat_write_header( oc, NULL );
1517 av_write_header( oc );
1520 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1523 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Invalid output format parameters\n" );
1524 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1525 goto on_fatal_error;
1531 output = alloc_picture( video_st->codec->pix_fmt, width, height );
1533 // Last check - need at least one stream
1534 if ( !audio_st[0] && !video_st )
1536 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1537 goto on_fatal_error;
1540 // Get the starting time (can ignore the times above)
1541 gettimeofday( &ante, NULL );
1543 // Loop while running
1544 while( mlt_properties_get_int( properties, "running" ) &&
1545 ( !terminated || ( video_st && mlt_deque_count( queue ) ) ) )
1548 frame = mlt_consumer_rt_frame( consumer );
1550 // Check that we have a frame to work with
1551 if ( frame != NULL )
1553 // Increment frames dispatched
1556 // Default audio args
1557 frame_properties = MLT_FRAME_PROPERTIES( frame );
1559 // Check for the terminated condition
1560 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1562 // Get audio and append to the fifo
1563 if ( !terminated && audio_st[0] )
1565 samples = mlt_sample_calculator( fps, frequency, count ++ );
1566 channels = total_channels;
1567 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
1569 // Save the audio channel remap properties for later
1570 mlt_properties_pass( frame_meta_properties, frame_properties, "meta.map.audio." );
1572 // Create the fifo if we don't have one
1575 fifo = sample_fifo_init( frequency, channels );
1576 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1580 // Silence if not normal forward speed
1581 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1582 memset( pcm, 0, samples * channels * sample_bytes );
1584 // Append the samples
1585 sample_fifo_append( fifo, pcm, samples * channels * sample_bytes );
1586 total_time += ( samples * 1000000 ) / frequency;
1589 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1593 if ( !terminated && video_st )
1594 mlt_deque_push_back( queue, frame );
1596 mlt_frame_close( frame );
1600 // While we have stuff to process, process...
1603 // Write interleaved audio and video frames
1604 if ( !video_st || ( video_st && audio_st[0] && audio_pts < video_pts ) )
1607 if ( ( video_st && terminated ) || ( channels * audio_input_frame_size ) < sample_fifo_used( fifo ) / sample_bytes )
1609 int j = 0; // channel offset into interleaved source buffer
1610 int n = FFMIN( FFMIN( channels * audio_input_frame_size, sample_fifo_used( fifo ) / sample_bytes ), AUDIO_ENCODE_BUFFER_SIZE );
1612 // Get the audio samples
1615 sample_fifo_fetch( fifo, audio_buf_1, n * sample_bytes );
1617 else if ( audio_codec_id == CODEC_ID_VORBIS && terminated )
1619 // This prevents an infinite loop when some versions of vorbis do not
1620 // increment pts when encoding silence.
1621 audio_pts = video_pts;
1626 memset( audio_buf_1, 0, AUDIO_ENCODE_BUFFER_SIZE );
1628 samples = n / channels;
1630 // For each output stream
1631 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i] && j < total_channels; i++ )
1633 AVStream *stream = audio_st[i];
1634 AVCodecContext *codec = stream->codec;
1637 av_init_packet( &pkt );
1639 // Optimized for single track and no channel remap
1640 if ( !audio_st[1] && !mlt_properties_count( frame_meta_properties ) )
1642 void* p = audio_buf_1;
1643 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1644 if ( codec->sample_fmt == AV_SAMPLE_FMT_FLTP )
1645 p = interleaved_to_planar( samples, channels, p, sizeof( float ) );
1646 else if ( codec->sample_fmt == AV_SAMPLE_FMT_S16P )
1647 p = interleaved_to_planar( samples, channels, p, sizeof( int16_t ) );
1648 else if ( codec->sample_fmt == AV_SAMPLE_FMT_S32P )
1649 p = interleaved_to_planar( samples, channels, p, sizeof( int32_t ) );
1650 else if ( codec->sample_fmt == AV_SAMPLE_FMT_U8P )
1651 p = interleaved_to_planar( samples, channels, p, sizeof( uint8_t ) );
1653 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, p );
1655 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1656 if ( p != audio_buf_1 )
1657 mlt_pool_release( p );
1662 // Extract the audio channels according to channel mapping
1663 int dest_offset = 0; // channel offset into interleaved dest buffer
1665 // Get the number of channels for this stream
1666 sprintf( key, "channels.%d", i );
1667 int current_channels = mlt_properties_get_int( properties, key );
1669 // Clear the destination audio buffer.
1671 audio_buf_2 = av_mallocz( AUDIO_ENCODE_BUFFER_SIZE );
1673 memset( audio_buf_2, 0, AUDIO_ENCODE_BUFFER_SIZE );
1675 // For each output channel
1676 while ( dest_offset < current_channels && j < total_channels )
1678 int map_start = -1, map_channels = 0;
1679 int source_offset = 0;
1682 // Look for a mapping that starts at j
1683 for ( k = 0; k < (MAX_AUDIO_STREAMS * 2) && map_start != j; k++ )
1685 sprintf( key, "%d.channels", k );
1686 map_channels = mlt_properties_get_int( frame_meta_properties, key );
1687 sprintf( key, "%d.start", k );
1688 if ( mlt_properties_get( frame_meta_properties, key ) )
1689 map_start = mlt_properties_get_int( frame_meta_properties, key );
1690 if ( map_start != j )
1691 source_offset += map_channels;
1695 if ( map_start != j )
1697 map_channels = current_channels;
1701 // Copy samples if source offset valid
1702 if ( source_offset < channels )
1704 // Interleave the audio buffer with the # channels for this stream/mapping.
1705 for ( k = 0; k < map_channels; k++, j++, source_offset++, dest_offset++ )
1707 void *src = audio_buf_1 + source_offset * sample_bytes;
1708 void *dest = audio_buf_2 + dest_offset * sample_bytes;
1709 int s = samples + 1;
1712 memcpy( dest, src, sample_bytes );
1713 dest += current_channels * sample_bytes;
1714 src += channels * sample_bytes;
1718 // Otherwise silence
1721 j += current_channels;
1722 dest_offset += current_channels;
1725 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, (short*) audio_buf_2 );
1728 // Write the compressed frame in the media file
1729 if ( codec->coded_frame && codec->coded_frame->pts != AV_NOPTS_VALUE )
1731 pkt.pts = av_rescale_q( codec->coded_frame->pts, codec->time_base, stream->time_base );
1732 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio stream %d pkt pts %"PRId64" frame pts %"PRId64,
1733 stream->index, pkt.pts, codec->coded_frame->pts );
1735 pkt.flags |= PKT_FLAG_KEY;
1736 pkt.stream_index = stream->index;
1737 pkt.data = audio_outbuf;
1741 if ( av_interleaved_write_frame( oc, &pkt ) )
1743 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing audio frame\n" );
1744 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1745 goto on_fatal_error;
1749 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", codec->frame_size );
1752 audio_pts = (double)stream->pts.val * av_q2d( stream->time_base );
1761 else if ( video_st )
1764 if ( mlt_deque_count( queue ) )
1766 int out_size, ret = 0;
1769 frame = mlt_deque_pop_front( queue );
1770 frame_properties = MLT_FRAME_PROPERTIES( frame );
1772 c = video_st->codec;
1774 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1780 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1784 // Convert the mlt frame to an AVPicture
1785 for ( i = 0; i < height; i ++ )
1787 p = input->data[ 0 ] + i * input->linesize[ 0 ];
1788 memcpy( p, q, width * 2 );
1792 // Do the colour space conversion
1794 int flags = SWS_BICUBIC;
1796 flags |= SWS_CPU_CAPS_MMX;
1799 flags |= SWS_CPU_CAPS_MMX2;
1801 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1802 width, height, video_st->codec->pix_fmt, flags, NULL, NULL, NULL);
1803 sws_scale( context, (const uint8_t* const*) input->data, input->linesize, 0, height,
1804 output->data, output->linesize);
1805 sws_freeContext( context );
1807 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1810 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1812 // Apply the alpha if applicable
1813 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1815 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1818 for ( i = 0; i < height; i ++ )
1820 n = ( width + 7 ) / 8;
1821 p = output->data[ 0 ] + i * output->linesize[ 0 ] + 3;
1825 case 0: do { *p = *alpha++; p += 4;
1826 case 7: *p = *alpha++; p += 4;
1827 case 6: *p = *alpha++; p += 4;
1828 case 5: *p = *alpha++; p += 4;
1829 case 4: *p = *alpha++; p += 4;
1830 case 3: *p = *alpha++; p += 4;
1831 case 2: *p = *alpha++; p += 4;
1832 case 1: *p = *alpha++; p += 4;
1840 if (oc->oformat->flags & AVFMT_RAWPICTURE)
1842 // raw video case. The API will change slightly in the near future for that
1844 av_init_packet(&pkt);
1846 pkt.flags |= PKT_FLAG_KEY;
1847 pkt.stream_index= video_st->index;
1848 pkt.data= (uint8_t *)output;
1849 pkt.size= sizeof(AVPicture);
1851 ret = av_write_frame(oc, &pkt);
1852 video_pts += c->frame_size;
1857 output->quality = c->global_quality;
1859 // Set frame interlace hints
1860 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1861 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1862 output->pts = frame_count;
1865 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1867 // If zero size, it means the image was buffered
1871 av_init_packet( &pkt );
1873 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1874 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1875 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pkt pts %"PRId64" frame pts %"PRId64, pkt.pts, c->coded_frame->pts );
1876 if( c->coded_frame && c->coded_frame->key_frame )
1877 pkt.flags |= PKT_FLAG_KEY;
1878 pkt.stream_index= video_st->index;
1879 pkt.data= video_outbuf;
1882 // write the compressed frame in the media file
1883 ret = av_interleaved_write_frame(oc, &pkt);
1884 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", c->frame_size );
1885 video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1887 // Dual pass logging
1888 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1889 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1891 else if ( out_size < 0 )
1893 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with video encode %d\n", frame_count );
1899 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing video frame\n" );
1900 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1901 goto on_fatal_error;
1903 mlt_frame_close( frame );
1912 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio pts %"PRId64" (%f) ", audio_st[0]->pts.val, audio_pts );
1914 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pts %"PRId64" (%f) ", video_st->pts.val, video_pts );
1915 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "\n" );
1918 if ( real_time_output == 1 && frames % 2 == 0 )
1920 long passed = time_difference( &ante );
1923 long pending = ( ( ( long )sample_fifo_used( fifo ) / sample_bytes * 1000 ) / frequency ) * 1000;
1926 if ( passed < total_time )
1928 long total = ( total_time - passed );
1929 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1930 nanosleep( &t, NULL );
1935 // Flush the encoder buffers
1936 if ( real_time_output <= 0 )
1939 // TODO: flush all audio streams
1940 if ( audio_st[0] && audio_st[0]->codec->frame_size > 1 ) for (;;)
1942 AVCodecContext *c = audio_st[0]->codec;
1944 av_init_packet( &pkt );
1948 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) / sample_bytes ) )
1950 sample_fifo_fetch( fifo, audio_buf_1, channels * audio_input_frame_size * sample_bytes );
1951 void* p = audio_buf_1;
1952 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1953 if ( c->sample_fmt == AV_SAMPLE_FMT_FLTP )
1954 p = interleaved_to_planar( audio_input_frame_size, channels, p, sizeof( float ) );
1955 else if ( c->sample_fmt == AV_SAMPLE_FMT_S16P )
1956 p = interleaved_to_planar( audio_input_frame_size, channels, p, sizeof( int16_t ) );
1957 else if ( c->sample_fmt == AV_SAMPLE_FMT_S32P )
1958 p = interleaved_to_planar( audio_input_frame_size, channels, p, sizeof( int32_t ) );
1959 else if ( c->sample_fmt == AV_SAMPLE_FMT_U8P )
1960 p = interleaved_to_planar( audio_input_frame_size, channels, p, sizeof( uint8_t ) );
1962 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, p );
1963 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1964 if ( p != audio_buf_1 )
1965 mlt_pool_release( p );
1968 if ( pkt.size <= 0 )
1969 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1970 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
1971 if ( pkt.size <= 0 )
1974 // Write the compressed frame in the media file
1975 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1976 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st[0]->time_base );
1977 pkt.flags |= PKT_FLAG_KEY;
1978 pkt.stream_index = audio_st[0]->index;
1979 pkt.data = audio_outbuf;
1980 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1982 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing flushed audio frame\n" );
1983 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1984 goto on_fatal_error;
1989 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1991 AVCodecContext *c = video_st->codec;
1993 av_init_packet( &pkt );
1996 pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1997 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing video size %d\n", pkt.size );
1998 if ( pkt.size <= 0 )
2001 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
2002 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
2003 if( c->coded_frame && c->coded_frame->key_frame )
2004 pkt.flags |= PKT_FLAG_KEY;
2005 pkt.stream_index = video_st->index;
2006 pkt.data = video_outbuf;
2008 // write the compressed frame in the media file
2009 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
2011 mlt_log_fatal( MLT_CONSUMER_SERVICE(consumer), "error writing flushed video frame\n" );
2012 mlt_events_fire( properties, "consumer-fatal-error", NULL );
2013 goto on_fatal_error;
2015 // Dual pass logging
2016 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
2017 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
2023 // Write the trailer, if any
2025 av_write_trailer( oc );
2029 close_video(oc, video_st);
2030 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
2031 close_audio( oc, audio_st[i] );
2034 for ( i = 0; i < oc->nb_streams; i++ )
2035 av_freep( &oc->streams[i] );
2037 // Close the output file
2038 if ( !( fmt->flags & AVFMT_NOFILE ) &&
2039 !mlt_properties_get_int( properties, "redirect" ) )
2041 #if LIBAVFORMAT_VERSION_MAJOR >= 53
2042 if ( oc->pb ) avio_close( oc->pb );
2043 #elif LIBAVFORMAT_VERSION_MAJOR >= 52
2044 if ( oc->pb ) url_fclose( oc->pb );
2046 url_fclose( &oc->pb );
2050 // Clean up input and output frames
2052 av_free( output->data[0] );
2054 av_free( input->data[0] );
2056 av_free( video_outbuf );
2057 av_free( audio_buf_1 );
2058 av_free( audio_buf_2 );
2063 // Just in case we terminated on pause
2064 mlt_consumer_stopped( consumer );
2065 mlt_properties_close( frame_meta_properties );
2067 if ( mlt_properties_get_int( properties, "pass" ) > 1 )
2069 // Remove the dual pass log file
2070 if ( mlt_properties_get( properties, "_logfilename" ) )
2071 remove( mlt_properties_get( properties, "_logfilename" ) );
2073 // Remove the x264 dual pass logs
2074 char *cwd = getcwd( NULL, 0 );
2075 const char *file = "x264_2pass.log";
2076 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2077 sprintf( full, "%s/%s", cwd, file );
2080 file = "x264_2pass.log.temp";
2081 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2082 sprintf( full, "%s/%s", cwd, file );
2085 file = "x264_2pass.log.mbtree";
2086 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2087 sprintf( full, "%s/%s", cwd, file );
2091 remove( "x264_2pass.log.temp" );
2094 while ( ( frame = mlt_deque_pop_back( queue ) ) )
2095 mlt_frame_close( frame );
2100 /** Close the consumer.
2103 static void consumer_close( mlt_consumer consumer )
2105 // Stop the consumer
2106 mlt_consumer_stop( consumer );
2109 mlt_consumer_close( consumer );