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_S32:
478 return mlt_audio_s32le;
479 case AV_SAMPLE_FMT_FLT:
480 return mlt_audio_f32le;
481 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
482 case AV_SAMPLE_FMT_S32P:
483 return mlt_audio_s32le;
484 case AV_SAMPLE_FMT_FLTP:
485 return mlt_audio_f32le;
488 return mlt_audio_s16;
492 static int pick_sample_fmt( mlt_properties properties, AVCodec *codec )
494 int sample_fmt = AV_SAMPLE_FMT_S16;
495 const char *format = mlt_properties_get( properties, "mlt_audio_format" );
496 const int *p = codec->sample_fmts;
498 // get default av_sample_fmt from mlt_audio_format
501 if ( !strcmp( format, "s32le" ) )
502 sample_fmt = AV_SAMPLE_FMT_S32;
503 else if ( !strcmp( format, "f32le" ) )
504 sample_fmt = AV_SAMPLE_FMT_FLT;
505 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
506 else if ( !strcmp( format, "s32" ) )
507 sample_fmt = AV_SAMPLE_FMT_S32P;
508 else if ( !strcmp( format, "float" ) )
509 sample_fmt = AV_SAMPLE_FMT_FLTP;
512 // check if codec supports our mlt_audio_format
513 for ( ; *p != -1; p++ )
515 if ( *p == sample_fmt )
518 // no match - pick first one we support
519 for ( p = codec->sample_fmts; *p != -1; p++ )
523 case AV_SAMPLE_FMT_S16:
524 case AV_SAMPLE_FMT_S32:
525 case AV_SAMPLE_FMT_FLT:
526 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
527 case AV_SAMPLE_FMT_S16P:
528 case AV_SAMPLE_FMT_S32P:
529 case AV_SAMPLE_FMT_FLTP:
536 mlt_log_error( properties, "audio codec sample_fmt not compatible" );
538 return AV_SAMPLE_FMT_NONE;
541 static uint8_t* interleaved_to_planar( int samples, int channels, uint8_t* audio, int bytes_per_sample )
543 int size = samples * channels * bytes_per_sample;
544 uint8_t *buffer = mlt_pool_alloc( AUDIO_ENCODE_BUFFER_SIZE );
548 memset( buffer, 0, AUDIO_ENCODE_BUFFER_SIZE );
549 for ( c = 0; c < channels; c++ )
551 uint8_t *q = audio + c * bytes_per_sample;
555 memcpy( p, q, bytes_per_sample );
556 p += bytes_per_sample;
557 q += channels * bytes_per_sample;
563 /** Add an audio output stream
566 static AVStream *add_audio_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec, int channels )
568 // Get the properties
569 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
571 // Create a new stream
572 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
573 AVStream *st = avformat_new_stream( oc, codec );
575 AVStream *st = av_new_stream( oc, oc->nb_streams );
578 // If created, then initialise from properties
581 AVCodecContext *c = st->codec;
583 // Establish defaults from AVOptions
584 #if LIBAVCODEC_VERSION_MAJOR >= 53
585 avcodec_get_context_defaults3( c, codec );
587 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
590 c->codec_id = codec->id;
591 c->codec_type = CODEC_TYPE_AUDIO;
592 c->sample_fmt = pick_sample_fmt( properties, codec );
594 #if 0 // disabled until some audio codecs are multi-threaded
595 // Setup multi-threading
596 int thread_count = mlt_properties_get_int( properties, "threads" );
597 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
598 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
599 if ( thread_count > 1 )
600 c->thread_count = thread_count;
603 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
604 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
606 // Allow the user to override the audio fourcc
607 if ( mlt_properties_get( properties, "atag" ) )
610 char *arg = mlt_properties_get( properties, "atag" );
611 int tag = strtol( arg, &tail, 0);
613 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
617 // Process properties as AVOptions
618 char *apre = mlt_properties_get( properties, "apre" );
621 mlt_properties p = mlt_properties_load( apre );
622 apply_properties( c, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
623 mlt_properties_close( p );
625 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
627 int audio_qscale = mlt_properties_get_int( properties, "aq" );
628 if ( audio_qscale > QSCALE_NONE )
630 c->flags |= CODEC_FLAG_QSCALE;
631 c->global_quality = FF_QP2LAMBDA * audio_qscale;
632 #if LIBAVFORMAT_VERSION_MAJOR < 53
633 st->quality = c->global_quality;
637 // Set parameters controlled by MLT
638 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
639 c->time_base = ( AVRational ){ 1, c->sample_rate };
640 c->channels = channels;
642 if ( mlt_properties_get( properties, "alang" ) != NULL )
643 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
644 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
645 av_dict_set( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
647 av_metadata_set2( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
651 strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
656 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for audio\n" );
662 static int open_audio( mlt_properties properties, AVFormatContext *oc, AVStream *st, int audio_outbuf_size, const char *codec_name )
664 // We will return the audio input size from here
665 int audio_input_frame_size = 0;
668 AVCodecContext *c = st->codec;
673 codec = avcodec_find_encoder_by_name( codec_name );
675 codec = avcodec_find_encoder( c->codec_id );
677 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(122<<8)+0)
678 // Process properties as AVOptions on the AVCodec
679 if ( codec && codec->priv_class )
681 char *apre = mlt_properties_get( properties, "apre" );
682 if ( !c->priv_data && codec->priv_data_size )
684 c->priv_data = av_mallocz( codec->priv_data_size );
685 *(const AVClass **) c->priv_data = codec->priv_class;
686 // av_opt_set_defaults( c );
690 mlt_properties p = mlt_properties_load( apre );
691 apply_properties( c->priv_data, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
692 mlt_properties_close( p );
694 apply_properties( c->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
698 // Continue if codec found and we can open it
699 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
700 if ( codec && avcodec_open2( c, codec, NULL ) >= 0 )
702 if ( codec && avcodec_open( c, codec ) >= 0 )
705 // ugly hack for PCM codecs (will be removed ASAP with new PCM
706 // support to compute the input frame size in samples
707 if ( c->frame_size <= 1 )
709 audio_input_frame_size = audio_outbuf_size / c->channels;
710 switch(st->codec->codec_id)
712 case CODEC_ID_PCM_S16LE:
713 case CODEC_ID_PCM_S16BE:
714 case CODEC_ID_PCM_U16LE:
715 case CODEC_ID_PCM_U16BE:
716 audio_input_frame_size >>= 1;
724 audio_input_frame_size = c->frame_size;
727 // Some formats want stream headers to be seperate (hmm)
728 if ( !strcmp( oc->oformat->name, "mp4" ) ||
729 !strcmp( oc->oformat->name, "mov" ) ||
730 !strcmp( oc->oformat->name, "3gp" ) )
731 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
735 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
736 audio_input_frame_size = 0;
739 return audio_input_frame_size;
742 static void close_audio( AVFormatContext *oc, AVStream *st )
744 if ( st && st->codec )
745 avcodec_close( st->codec );
748 /** Add a video output stream
751 static AVStream *add_video_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec )
753 // Get the properties
754 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
756 // Create a new stream
757 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
758 AVStream *st = avformat_new_stream( oc, codec );
760 AVStream *st = av_new_stream( oc, oc->nb_streams );
765 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
766 AVCodecContext *c = st->codec;
768 // Establish defaults from AVOptions
769 #if LIBAVCODEC_VERSION_MAJOR >= 53
770 avcodec_get_context_defaults3( c, codec );
772 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
775 c->codec_id = codec->id;
776 c->codec_type = CODEC_TYPE_VIDEO;
778 // Setup multi-threading
779 int thread_count = mlt_properties_get_int( properties, "threads" );
780 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
781 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
782 if ( thread_count > 1 )
783 #if LIBAVCODEC_VERSION_MAJOR >= 53
784 c->thread_count = thread_count;
786 avcodec_thread_init( c, thread_count );
789 // Process properties as AVOptions
790 char *vpre = mlt_properties_get( properties, "vpre" );
793 mlt_properties p = mlt_properties_load( vpre );
795 if ( mlt_properties_count( p ) < 1 )
797 AVCodec *codec = avcodec_find_encoder( c->codec_id );
800 char *path = malloc( strlen(AVDATADIR) + strlen(codec->name) + strlen(vpre) + strlen(".ffpreset") + 2 );
801 strcpy( path, AVDATADIR );
802 strcat( path, codec->name );
804 strcat( path, vpre );
805 strcat( path, ".ffpreset" );
807 mlt_properties_close( p );
808 p = mlt_properties_load( path );
809 if ( mlt_properties_count( p ) > 0 )
810 mlt_properties_debug( p, path, stderr );
816 mlt_properties_debug( p, vpre, stderr );
819 apply_properties( c, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
820 mlt_properties_close( p );
822 int colorspace = mlt_properties_get_int( properties, "colorspace" );
823 mlt_properties_set( properties, "colorspace", NULL );
824 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
825 mlt_properties_set_int( properties, "colorspace", colorspace );
827 // Set options controlled by MLT
828 c->width = mlt_properties_get_int( properties, "width" );
829 c->height = mlt_properties_get_int( properties, "height" );
830 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
831 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
832 if ( st->time_base.den == 0 )
833 st->time_base = c->time_base;
834 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
835 c->pix_fmt = pix_fmt ? av_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
837 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
840 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
841 switch ( colorspace )
844 c->colorspace = AVCOL_SPC_SMPTE170M;
847 c->colorspace = AVCOL_SPC_SMPTE240M;
850 c->colorspace = AVCOL_SPC_BT470BG;
853 c->colorspace = ( 576 % c->height ) ? AVCOL_SPC_SMPTE170M : AVCOL_SPC_BT470BG;
856 c->colorspace = AVCOL_SPC_BT709;
861 if ( mlt_properties_get( properties, "aspect" ) )
863 // "-aspect" on ffmpeg command line is display aspect ratio
864 double ar = mlt_properties_get_double( properties, "aspect" );
865 c->sample_aspect_ratio = av_d2q( ar * c->height / c->width, 255 );
869 c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
870 c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
872 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
873 st->sample_aspect_ratio = c->sample_aspect_ratio;
876 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
878 c->flags |= CODEC_FLAG_QSCALE;
879 c->global_quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
880 #if LIBAVFORMAT_VERSION_MAJOR < 53
881 st->quality = c->global_quality;
885 // Allow the user to override the video fourcc
886 if ( mlt_properties_get( properties, "vtag" ) )
889 const char *arg = mlt_properties_get( properties, "vtag" );
890 int tag = strtol( arg, &tail, 0);
892 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
896 // Some formats want stream headers to be seperate
897 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
898 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
900 // Translate these standard mlt consumer properties to ffmpeg
901 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
902 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
904 if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
905 c->flags |= CODEC_FLAG_INTERLACED_DCT;
906 if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
907 c->flags |= CODEC_FLAG_INTERLACED_ME;
910 // parse the ratecontrol override string
912 char *rc_override = mlt_properties_get( properties, "rc_override" );
913 for ( i = 0; rc_override; i++ )
916 int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
918 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Error parsing rc_override\n" );
919 c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
920 c->rc_override[i].start_frame = start;
921 c->rc_override[i].end_frame = end;
924 c->rc_override[i].qscale = q;
925 c->rc_override[i].quality_factor = 1.0;
929 c->rc_override[i].qscale = 0;
930 c->rc_override[i].quality_factor = -q / 100.0;
932 rc_override = strchr( rc_override, '/' );
936 c->rc_override_count = i;
937 if ( !c->rc_initial_buffer_occupancy )
938 c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
939 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
942 i = mlt_properties_get_int( properties, "pass" );
944 c->flags |= CODEC_FLAG_PASS1;
946 c->flags |= CODEC_FLAG_PASS2;
947 if ( codec->id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
949 char logfilename[1024];
954 snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
955 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
956 if ( c->flags & CODEC_FLAG_PASS1 )
958 f = fopen( logfilename, "w" );
960 perror( logfilename );
962 mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
966 /* read the log file */
967 f = fopen( logfilename, "r" );
974 mlt_properties_set( properties, "_logfilename", logfilename );
975 fseek( f, 0, SEEK_END );
977 fseek( f, 0, SEEK_SET );
978 logbuffer = av_malloc( size + 1 );
980 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate log buffer\n" );
985 size = fread( logbuffer, 1, size, f );
986 logbuffer[size] = '\0';
987 c->stats_in = logbuffer;
997 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for video\n" );
1003 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
1006 AVFrame *picture = avcodec_alloc_frame();
1008 // Determine size of the
1009 int size = avpicture_get_size(pix_fmt, width, height);
1011 // Allocate the picture buf
1012 uint8_t *picture_buf = av_malloc(size);
1014 // If we have both, then fill the image
1015 if ( picture != NULL && picture_buf != NULL )
1017 // Fill the frame with the allocated buffer
1018 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
1022 // Something failed - clean up what we can
1024 av_free( picture_buf );
1031 static int open_video( mlt_properties properties, AVFormatContext *oc, AVStream *st, const char *codec_name )
1034 AVCodecContext *video_enc = st->codec;
1036 // find the video encoder
1039 codec = avcodec_find_encoder_by_name( codec_name );
1041 codec = avcodec_find_encoder( video_enc->codec_id );
1043 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(122<<8)+0)
1044 // Process properties as AVOptions on the AVCodec
1045 if ( codec && codec->priv_class )
1047 char *vpre = mlt_properties_get( properties, "vpre" );
1048 if ( !video_enc->priv_data && codec->priv_data_size )
1050 video_enc->priv_data = av_mallocz( codec->priv_data_size );
1051 *(const AVClass **) video_enc->priv_data = codec->priv_class;
1052 // av_opt_set_defaults( video_enc );
1056 mlt_properties p = mlt_properties_load( vpre );
1057 apply_properties( video_enc->priv_data, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
1058 mlt_properties_close( p );
1060 apply_properties( video_enc->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
1064 if( codec && codec->pix_fmts )
1066 const enum PixelFormat *p = codec->pix_fmts;
1067 for( ; *p!=-1; p++ )
1069 if( *p == video_enc->pix_fmt )
1073 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
1076 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
1077 int result = codec && avcodec_open2( video_enc, codec, NULL ) >= 0;
1079 int result = codec && avcodec_open( video_enc, codec ) >= 0;
1085 void close_video(AVFormatContext *oc, AVStream *st)
1087 if ( st && st->codec )
1089 av_freep( &st->codec->stats_in );
1090 avcodec_close(st->codec);
1094 static inline long time_difference( struct timeval *time1 )
1096 struct timeval time2;
1097 gettimeofday( &time2, NULL );
1098 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
1101 static int mlt_write(void *h, uint8_t *buf, int size)
1103 mlt_properties properties = (mlt_properties) h;
1104 mlt_events_fire( properties, "avformat-write", buf, size, NULL );
1108 static void write_transmitter( mlt_listener listener, mlt_properties owner, mlt_service service, void **args )
1110 listener( owner, service, (uint8_t*) args[0], (int) args[1] );
1113 /** The main thread - the argument is simply the consumer.
1116 static void *consumer_thread( void *arg )
1118 // Map the argument to the object
1119 mlt_consumer consumer = arg;
1121 // Get the properties
1122 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
1124 // Get the terminate on pause property
1125 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
1128 // Determine if feed is slow (for realtime stuff)
1129 int real_time_output = mlt_properties_get_int( properties, "real_time" );
1132 struct timeval ante;
1134 // Get the frame rate
1135 double fps = mlt_properties_get_double( properties, "fps" );
1137 // Get width and height
1138 int width = mlt_properties_get_int( properties, "width" );
1139 int height = mlt_properties_get_int( properties, "height" );
1140 int img_width = width;
1141 int img_height = height;
1143 // Get default audio properties
1144 int channels = mlt_properties_get_int( properties, "channels" );
1145 int total_channels = channels;
1146 int frequency = mlt_properties_get_int( properties, "frequency" );
1150 // AVFormat audio buffer and frame size
1151 int audio_outbuf_size = AUDIO_BUFFER_SIZE;
1152 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
1153 int audio_input_frame_size = 0;
1155 // AVFormat video buffer and frame count
1156 int frame_count = 0;
1157 int video_outbuf_size = VIDEO_BUFFER_SIZE;
1158 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
1160 // Used for the frame properties
1161 mlt_frame frame = NULL;
1162 mlt_properties frame_properties = NULL;
1165 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
1166 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
1168 // Need two av pictures for converting
1169 AVFrame *output = NULL;
1170 AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
1172 // For receiving images from an mlt_frame
1174 mlt_image_format img_fmt = mlt_image_yuv422;
1176 // For receiving audio samples back from the fifo
1177 uint8_t *audio_buf_1 = av_malloc( AUDIO_ENCODE_BUFFER_SIZE );
1178 uint8_t *audio_buf_2 = NULL;
1181 // Allocate the context
1182 #if (LIBAVFORMAT_VERSION_INT >= ((52<<16)+(26<<8)+0))
1183 AVFormatContext *oc = avformat_alloc_context( );
1185 AVFormatContext *oc = av_alloc_format_context( );
1189 AVStream *video_st = NULL;
1190 AVStream *audio_st[ MAX_AUDIO_STREAMS ];
1193 double audio_pts = 0;
1194 double video_pts = 0;
1196 // Frames dispatched
1197 long int frames = 0;
1198 long int total_time = 0;
1200 // Determine the format
1201 AVOutputFormat *fmt = NULL;
1202 const char *filename = mlt_properties_get( properties, "target" );
1203 char *format = mlt_properties_get( properties, "f" );
1204 char *vcodec = mlt_properties_get( properties, "vcodec" );
1205 char *acodec = mlt_properties_get( properties, "acodec" );
1206 AVCodec *audio_codec = NULL;
1207 AVCodec *video_codec = NULL;
1209 // Used to store and override codec ids
1215 mlt_properties frame_meta_properties = mlt_properties_new();
1217 // Initialize audio_st
1218 int i = MAX_AUDIO_STREAMS;
1222 // Check for user selected format first
1223 if ( format != NULL )
1224 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1225 fmt = guess_format( format, NULL, NULL );
1227 fmt = av_guess_format( format, NULL, NULL );
1230 // Otherwise check on the filename
1231 if ( fmt == NULL && filename != NULL )
1232 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1233 fmt = guess_format( NULL, filename, NULL );
1235 fmt = av_guess_format( NULL, filename, NULL );
1238 // Otherwise default to mpeg
1240 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1241 fmt = guess_format( "mpeg", NULL, NULL );
1243 fmt = av_guess_format( "mpeg", NULL, NULL );
1246 // We need a filename - default to stdout?
1247 if ( filename == NULL || !strcmp( filename, "" ) )
1250 // Get the codec ids selected
1251 audio_codec_id = fmt->audio_codec;
1252 video_codec_id = fmt->video_codec;
1254 // Check for audio codec overides
1255 if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
1256 audio_codec_id = CODEC_ID_NONE;
1259 audio_codec = avcodec_find_encoder_by_name( acodec );
1262 audio_codec_id = audio_codec->id;
1263 if ( audio_codec_id == CODEC_ID_AC3 && avcodec_find_encoder_by_name( "ac3_fixed" ) )
1265 mlt_properties_set( properties, "_acodec", "ac3_fixed" );
1266 acodec = mlt_properties_get( properties, "_acodec" );
1267 audio_codec = avcodec_find_encoder_by_name( acodec );
1269 else if ( !strcmp( acodec, "aac" ) )
1271 mlt_properties_set( properties, "astrict", "experimental" );
1276 audio_codec_id = CODEC_ID_NONE;
1277 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "audio codec %s unrecognised - ignoring\n", acodec );
1282 audio_codec = avcodec_find_encoder( audio_codec_id );
1285 // Check for video codec overides
1286 if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
1287 video_codec_id = CODEC_ID_NONE;
1290 video_codec = avcodec_find_encoder_by_name( vcodec );
1293 video_codec_id = video_codec->id;
1297 video_codec_id = CODEC_ID_NONE;
1298 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "video codec %s unrecognised - ignoring\n", vcodec );
1303 video_codec = avcodec_find_encoder( video_codec_id );
1307 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
1308 for ( i = 0; i < mlt_properties_count( properties ); i++ )
1310 char *name = mlt_properties_get_name( properties, i );
1311 if ( name && !strncmp( name, "meta.attr.", 10 ) )
1313 char *key = strdup( name + 10 );
1314 char *markup = strrchr( key, '.' );
1315 if ( markup && !strcmp( markup, ".markup") )
1318 if ( !strstr( key, ".stream." ) )
1319 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
1320 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
1321 av_dict_set( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1323 av_metadata_set2( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1326 av_metadata_set( &oc->metadata, key, mlt_properties_get_value( properties, i ) );
1336 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
1337 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
1339 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
1340 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
1342 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
1343 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
1345 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
1346 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
1348 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
1349 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
1351 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
1352 if (metavalue != 0) oc->year = metavalue;
1354 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
1355 if (metavalue != 0) oc->track = metavalue;
1359 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
1361 // Get a frame now, so we can set some AVOptions from properties.
1362 frame = mlt_consumer_rt_frame( consumer );
1364 // Set the timecode from the MLT metadata if available.
1367 const char *timecode = mlt_properties_get( MLT_FRAME_PROPERTIES(frame), "meta.attr.vitc.markup" );
1368 if ( timecode && strcmp( timecode, "" ) )
1370 mlt_properties_set( properties, "timecode", timecode );
1371 if ( strchr( timecode, ';' ) )
1372 mlt_properties_set_int( properties, "drop_frame_timecode", 1 );
1376 // Add audio and video streams
1377 if ( video_codec_id != CODEC_ID_NONE )
1378 video_st = add_video_stream( consumer, oc, video_codec );
1379 if ( audio_codec_id != CODEC_ID_NONE )
1385 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
1387 sprintf( key, "channels.%d", i );
1388 int j = mlt_properties_get_int( properties, key );
1392 total_channels += j;
1393 audio_st[i] = add_audio_stream( consumer, oc, audio_codec, j );
1399 audio_st[0] = add_audio_stream( consumer, oc, audio_codec, channels );
1400 total_channels = channels;
1403 mlt_properties_set_int( properties, "channels", total_channels );
1405 // Audio format is determined when adding the audio stream
1406 mlt_audio_format aud_fmt = mlt_audio_none;
1408 aud_fmt = get_mlt_audio_format( audio_st[0]->codec->sample_fmt );
1409 int sample_bytes = mlt_audio_format_size( aud_fmt, 1, 1 );
1410 sample_bytes = sample_bytes ? sample_bytes : 1; // prevent divide by zero
1412 // Set the parameters (even though we have none...)
1413 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1414 if ( av_set_parameters(oc, NULL) >= 0 )
1417 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1418 if ( mlt_properties_get( properties, "muxpreload" ) && ! mlt_properties_get( properties, "preload" ) )
1419 mlt_properties_set_double( properties, "preload", mlt_properties_get_double( properties, "muxpreload" ) );
1421 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
1423 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
1425 // Process properties as AVOptions
1426 char *fpre = mlt_properties_get( properties, "fpre" );
1429 mlt_properties p = mlt_properties_load( fpre );
1430 apply_properties( oc, p, AV_OPT_FLAG_ENCODING_PARAM );
1431 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(110<<8)+0)
1432 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1433 apply_properties( oc->priv_data, p, AV_OPT_FLAG_ENCODING_PARAM );
1435 mlt_properties_close( p );
1437 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
1438 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(110<<8)+0)
1439 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1440 apply_properties( oc->priv_data, properties, AV_OPT_FLAG_ENCODING_PARAM );
1443 if ( video_st && !open_video( properties, oc, video_st, vcodec? vcodec : NULL ) )
1445 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1447 audio_input_frame_size = open_audio( properties, oc, audio_st[i], audio_outbuf_size,
1448 acodec? acodec : NULL );
1449 if ( !audio_input_frame_size )
1451 // Remove the audio stream from the output context
1453 for ( j = 0; j < oc->nb_streams; j++ )
1455 if ( oc->streams[j] == audio_st[i] )
1456 av_freep( &oc->streams[j] );
1463 // Setup custom I/O if redirecting
1464 if ( mlt_properties_get_int( properties, "redirect" ) )
1466 int buffer_size = 32768;
1467 unsigned char *buffer = av_malloc( buffer_size );
1468 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1469 AVIOContext* io = avio_alloc_context( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1471 ByteIOContext* io = av_alloc_put_byte( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1476 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1477 oc->flags |= AVFMT_FLAG_CUSTOM_IO;
1479 mlt_properties_set_data( properties, "avio_buffer", buffer, buffer_size, av_free, NULL );
1480 mlt_properties_set_data( properties, "avio_context", io, 0, av_free, NULL );
1481 mlt_events_register( properties, "avformat-write", (mlt_transmitter) write_transmitter );
1486 mlt_log_error( MLT_CONSUMER_SERVICE(consumer), "failed to setup output redirection\n" );
1489 // Open the output file, if needed
1490 else if ( !( fmt->flags & AVFMT_NOFILE ) )
1492 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1493 if ( avio_open( &oc->pb, filename, AVIO_FLAG_WRITE ) < 0 )
1495 if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
1498 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not open '%s'\n", filename );
1499 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1500 goto on_fatal_error;
1504 // Write the stream header.
1505 if ( mlt_properties_get_int( properties, "running" ) )
1506 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(2<<8)+0)
1507 avformat_write_header( oc, NULL );
1509 av_write_header( oc );
1512 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1515 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Invalid output format parameters\n" );
1516 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1517 goto on_fatal_error;
1523 output = alloc_picture( video_st->codec->pix_fmt, width, height );
1525 // Last check - need at least one stream
1526 if ( !audio_st[0] && !video_st )
1528 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1529 goto on_fatal_error;
1532 // Get the starting time (can ignore the times above)
1533 gettimeofday( &ante, NULL );
1535 // Loop while running
1536 while( mlt_properties_get_int( properties, "running" ) &&
1537 ( !terminated || ( video_st && mlt_deque_count( queue ) ) ) )
1540 frame = mlt_consumer_rt_frame( consumer );
1542 // Check that we have a frame to work with
1543 if ( frame != NULL )
1545 // Increment frames dispatched
1548 // Default audio args
1549 frame_properties = MLT_FRAME_PROPERTIES( frame );
1551 // Check for the terminated condition
1552 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1554 // Get audio and append to the fifo
1555 if ( !terminated && audio_st[0] )
1557 samples = mlt_sample_calculator( fps, frequency, count ++ );
1558 channels = total_channels;
1559 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
1561 // Save the audio channel remap properties for later
1562 mlt_properties_pass( frame_meta_properties, frame_properties, "meta.map.audio." );
1564 // Create the fifo if we don't have one
1567 fifo = sample_fifo_init( frequency, channels );
1568 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1572 // Silence if not normal forward speed
1573 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1574 memset( pcm, 0, samples * channels * sample_bytes );
1576 // Append the samples
1577 sample_fifo_append( fifo, pcm, samples * channels * sample_bytes );
1578 total_time += ( samples * 1000000 ) / frequency;
1581 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1585 if ( !terminated && video_st )
1586 mlt_deque_push_back( queue, frame );
1588 mlt_frame_close( frame );
1592 // While we have stuff to process, process...
1595 // Write interleaved audio and video frames
1596 if ( !video_st || ( video_st && audio_st[0] && audio_pts < video_pts ) )
1599 if ( ( video_st && terminated ) || ( channels * audio_input_frame_size ) < sample_fifo_used( fifo ) / sample_bytes )
1601 int j = 0; // channel offset into interleaved source buffer
1602 int n = FFMIN( FFMIN( channels * audio_input_frame_size, sample_fifo_used( fifo ) / sample_bytes ), AUDIO_ENCODE_BUFFER_SIZE );
1604 // Get the audio samples
1607 sample_fifo_fetch( fifo, audio_buf_1, n * sample_bytes );
1609 else if ( audio_codec_id == CODEC_ID_VORBIS && terminated )
1611 // This prevents an infinite loop when some versions of vorbis do not
1612 // increment pts when encoding silence.
1613 audio_pts = video_pts;
1618 memset( audio_buf_1, 0, AUDIO_ENCODE_BUFFER_SIZE );
1620 samples = n / channels;
1622 // For each output stream
1623 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i] && j < total_channels; i++ )
1625 AVStream *stream = audio_st[i];
1626 AVCodecContext *codec = stream->codec;
1629 av_init_packet( &pkt );
1631 // Optimized for single track and no channel remap
1632 if ( !audio_st[1] && !mlt_properties_count( frame_meta_properties ) )
1634 void* p = audio_buf_1;
1635 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1636 if ( codec->sample_fmt == AV_SAMPLE_FMT_FLTP )
1637 p = interleaved_to_planar( samples, channels, p, sizeof( float ) );
1638 else if ( codec->sample_fmt == AV_SAMPLE_FMT_S16P )
1639 p = interleaved_to_planar( samples, channels, p, sizeof( int16_t ) );
1640 else if ( codec->sample_fmt == AV_SAMPLE_FMT_S32P )
1641 p = interleaved_to_planar( samples, channels, p, sizeof( int32_t ) );
1643 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, p );
1645 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1646 if ( codec->sample_fmt == AV_SAMPLE_FMT_FLTP
1647 || codec->sample_fmt == AV_SAMPLE_FMT_S16P
1648 || codec->sample_fmt == AV_SAMPLE_FMT_S32P )
1649 mlt_pool_release( p );
1654 // Extract the audio channels according to channel mapping
1655 int dest_offset = 0; // channel offset into interleaved dest buffer
1657 // Get the number of channels for this stream
1658 sprintf( key, "channels.%d", i );
1659 int current_channels = mlt_properties_get_int( properties, key );
1661 // Clear the destination audio buffer.
1663 audio_buf_2 = av_mallocz( AUDIO_ENCODE_BUFFER_SIZE );
1665 memset( audio_buf_2, 0, AUDIO_ENCODE_BUFFER_SIZE );
1667 // For each output channel
1668 while ( dest_offset < current_channels && j < total_channels )
1670 int map_start = -1, map_channels = 0;
1671 int source_offset = 0;
1674 // Look for a mapping that starts at j
1675 for ( k = 0; k < (MAX_AUDIO_STREAMS * 2) && map_start != j; k++ )
1677 sprintf( key, "%d.channels", k );
1678 map_channels = mlt_properties_get_int( frame_meta_properties, key );
1679 sprintf( key, "%d.start", k );
1680 if ( mlt_properties_get( frame_meta_properties, key ) )
1681 map_start = mlt_properties_get_int( frame_meta_properties, key );
1682 if ( map_start != j )
1683 source_offset += map_channels;
1687 if ( map_start != j )
1689 map_channels = current_channels;
1693 // Copy samples if source offset valid
1694 if ( source_offset < channels )
1696 // Interleave the audio buffer with the # channels for this stream/mapping.
1697 for ( k = 0; k < map_channels; k++, j++, source_offset++, dest_offset++ )
1699 void *src = audio_buf_1 + source_offset * sample_bytes;
1700 void *dest = audio_buf_2 + dest_offset * sample_bytes;
1701 int s = samples + 1;
1704 memcpy( dest, src, sample_bytes );
1705 dest += current_channels * sample_bytes;
1706 src += channels * sample_bytes;
1710 // Otherwise silence
1713 j += current_channels;
1714 dest_offset += current_channels;
1717 pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, (short*) audio_buf_2 );
1720 // Write the compressed frame in the media file
1721 if ( codec->coded_frame && codec->coded_frame->pts != AV_NOPTS_VALUE )
1723 pkt.pts = av_rescale_q( codec->coded_frame->pts, codec->time_base, stream->time_base );
1724 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio stream %d pkt pts %"PRId64" frame pts %"PRId64,
1725 stream->index, pkt.pts, codec->coded_frame->pts );
1727 pkt.flags |= PKT_FLAG_KEY;
1728 pkt.stream_index = stream->index;
1729 pkt.data = audio_outbuf;
1733 if ( av_interleaved_write_frame( oc, &pkt ) )
1735 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing audio frame\n" );
1736 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1737 goto on_fatal_error;
1741 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", codec->frame_size );
1744 audio_pts = (double)stream->pts.val * av_q2d( stream->time_base );
1753 else if ( video_st )
1756 if ( mlt_deque_count( queue ) )
1758 int out_size, ret = 0;
1761 frame = mlt_deque_pop_front( queue );
1762 frame_properties = MLT_FRAME_PROPERTIES( frame );
1764 c = video_st->codec;
1766 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1772 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1776 // Convert the mlt frame to an AVPicture
1777 for ( i = 0; i < height; i ++ )
1779 p = input->data[ 0 ] + i * input->linesize[ 0 ];
1780 memcpy( p, q, width * 2 );
1784 // Do the colour space conversion
1786 int flags = SWS_BICUBIC;
1788 flags |= SWS_CPU_CAPS_MMX;
1791 flags |= SWS_CPU_CAPS_MMX2;
1793 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1794 width, height, video_st->codec->pix_fmt, flags, NULL, NULL, NULL);
1795 sws_scale( context, (const uint8_t* const*) input->data, input->linesize, 0, height,
1796 output->data, output->linesize);
1797 sws_freeContext( context );
1799 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1802 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1804 // Apply the alpha if applicable
1805 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1807 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1810 for ( i = 0; i < height; i ++ )
1812 n = ( width + 7 ) / 8;
1813 p = output->data[ 0 ] + i * output->linesize[ 0 ] + 3;
1817 case 0: do { *p = *alpha++; p += 4;
1818 case 7: *p = *alpha++; p += 4;
1819 case 6: *p = *alpha++; p += 4;
1820 case 5: *p = *alpha++; p += 4;
1821 case 4: *p = *alpha++; p += 4;
1822 case 3: *p = *alpha++; p += 4;
1823 case 2: *p = *alpha++; p += 4;
1824 case 1: *p = *alpha++; p += 4;
1832 if (oc->oformat->flags & AVFMT_RAWPICTURE)
1834 // raw video case. The API will change slightly in the near future for that
1836 av_init_packet(&pkt);
1838 pkt.flags |= PKT_FLAG_KEY;
1839 pkt.stream_index= video_st->index;
1840 pkt.data= (uint8_t *)output;
1841 pkt.size= sizeof(AVPicture);
1843 ret = av_write_frame(oc, &pkt);
1844 video_pts += c->frame_size;
1849 output->quality = c->global_quality;
1851 // Set frame interlace hints
1852 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1853 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1854 output->pts = frame_count;
1857 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1859 // If zero size, it means the image was buffered
1863 av_init_packet( &pkt );
1865 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1866 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1867 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pkt pts %"PRId64" frame pts %"PRId64, pkt.pts, c->coded_frame->pts );
1868 if( c->coded_frame && c->coded_frame->key_frame )
1869 pkt.flags |= PKT_FLAG_KEY;
1870 pkt.stream_index= video_st->index;
1871 pkt.data= video_outbuf;
1874 // write the compressed frame in the media file
1875 ret = av_interleaved_write_frame(oc, &pkt);
1876 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", c->frame_size );
1877 video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1879 // Dual pass logging
1880 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1881 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1883 else if ( out_size < 0 )
1885 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with video encode %d\n", frame_count );
1891 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing video frame\n" );
1892 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1893 goto on_fatal_error;
1895 mlt_frame_close( frame );
1904 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio pts %"PRId64" (%f) ", audio_st[0]->pts.val, audio_pts );
1906 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pts %"PRId64" (%f) ", video_st->pts.val, video_pts );
1907 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "\n" );
1910 if ( real_time_output == 1 && frames % 2 == 0 )
1912 long passed = time_difference( &ante );
1915 long pending = ( ( ( long )sample_fifo_used( fifo ) / sample_bytes * 1000 ) / frequency ) * 1000;
1918 if ( passed < total_time )
1920 long total = ( total_time - passed );
1921 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1922 nanosleep( &t, NULL );
1927 // Flush the encoder buffers
1928 if ( real_time_output <= 0 )
1931 // TODO: flush all audio streams
1932 if ( audio_st[0] && audio_st[0]->codec->frame_size > 1 ) for (;;)
1934 AVCodecContext *c = audio_st[0]->codec;
1936 av_init_packet( &pkt );
1940 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) / sample_bytes ) )
1942 sample_fifo_fetch( fifo, audio_buf_1, channels * audio_input_frame_size * sample_bytes );
1943 void* p = audio_buf_1;
1944 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1945 if ( c->sample_fmt == AV_SAMPLE_FMT_FLTP )
1946 p = interleaved_to_planar( audio_input_frame_size, channels, p, sizeof( float ) );
1947 else if ( c->sample_fmt == AV_SAMPLE_FMT_S16P )
1948 p = interleaved_to_planar( audio_input_frame_size, channels, p, sizeof( int16_t ) );
1949 else if ( c->sample_fmt == AV_SAMPLE_FMT_S32P )
1950 p = interleaved_to_planar( audio_input_frame_size, channels, p, sizeof( int32_t ) );
1952 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, p );
1953 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1954 if ( c->sample_fmt == AV_SAMPLE_FMT_FLTP
1955 || c->sample_fmt == AV_SAMPLE_FMT_S16P
1956 || c->sample_fmt == AV_SAMPLE_FMT_S32P )
1957 mlt_pool_release( p );
1960 if ( pkt.size <= 0 )
1961 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1962 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
1963 if ( pkt.size <= 0 )
1966 // Write the compressed frame in the media file
1967 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1968 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st[0]->time_base );
1969 pkt.flags |= PKT_FLAG_KEY;
1970 pkt.stream_index = audio_st[0]->index;
1971 pkt.data = audio_outbuf;
1972 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1974 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing flushed audio frame\n" );
1975 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1976 goto on_fatal_error;
1981 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1983 AVCodecContext *c = video_st->codec;
1985 av_init_packet( &pkt );
1988 pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1989 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing video size %d\n", pkt.size );
1990 if ( pkt.size <= 0 )
1993 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1994 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1995 if( c->coded_frame && c->coded_frame->key_frame )
1996 pkt.flags |= PKT_FLAG_KEY;
1997 pkt.stream_index = video_st->index;
1998 pkt.data = video_outbuf;
2000 // write the compressed frame in the media file
2001 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
2003 mlt_log_fatal( MLT_CONSUMER_SERVICE(consumer), "error writing flushed video frame\n" );
2004 mlt_events_fire( properties, "consumer-fatal-error", NULL );
2005 goto on_fatal_error;
2007 // Dual pass logging
2008 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
2009 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
2015 // Write the trailer, if any
2017 av_write_trailer( oc );
2021 close_video(oc, video_st);
2022 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
2023 close_audio( oc, audio_st[i] );
2026 for ( i = 0; i < oc->nb_streams; i++ )
2027 av_freep( &oc->streams[i] );
2029 // Close the output file
2030 if ( !( fmt->flags & AVFMT_NOFILE ) &&
2031 !mlt_properties_get_int( properties, "redirect" ) )
2033 #if LIBAVFORMAT_VERSION_MAJOR >= 53
2034 if ( oc->pb ) avio_close( oc->pb );
2035 #elif LIBAVFORMAT_VERSION_MAJOR >= 52
2036 if ( oc->pb ) url_fclose( oc->pb );
2038 url_fclose( &oc->pb );
2042 // Clean up input and output frames
2044 av_free( output->data[0] );
2046 av_free( input->data[0] );
2048 av_free( video_outbuf );
2049 av_free( audio_buf_1 );
2050 av_free( audio_buf_2 );
2055 // Just in case we terminated on pause
2056 mlt_consumer_stopped( consumer );
2057 mlt_properties_close( frame_meta_properties );
2059 if ( mlt_properties_get_int( properties, "pass" ) > 1 )
2061 // Remove the dual pass log file
2062 if ( mlt_properties_get( properties, "_logfilename" ) )
2063 remove( mlt_properties_get( properties, "_logfilename" ) );
2065 // Remove the x264 dual pass logs
2066 char *cwd = getcwd( NULL, 0 );
2067 const char *file = "x264_2pass.log";
2068 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2069 sprintf( full, "%s/%s", cwd, file );
2072 file = "x264_2pass.log.temp";
2073 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2074 sprintf( full, "%s/%s", cwd, file );
2077 file = "x264_2pass.log.mbtree";
2078 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2079 sprintf( full, "%s/%s", cwd, file );
2083 remove( "x264_2pass.log.temp" );
2086 while ( ( frame = mlt_deque_pop_back( queue ) ) )
2087 mlt_frame_close( frame );
2092 /** Close the consumer.
2095 static void consumer_close( mlt_consumer consumer )
2097 // Stop the consumer
2098 mlt_consumer_stop( consumer );
2101 mlt_consumer_close( consumer );