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producer_avformat.c, consumer_avformat.c: use av_set_string3 where available (gets...
[melted] / src / modules / avformat / consumer_avformat.c
1 /*
2 * consumer_avformat.c -- an encoder based on avformat
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
5 * Much code borrowed from ffmpeg.c: Copyright (c) 2000-2003 Fabrice Bellard
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 // mlt Header files
23 #include <framework/mlt_consumer.h>
24 #include <framework/mlt_frame.h>
25
26 // System header files
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <limits.h>
31 #include <pthread.h>
32 #include <sys/time.h>
33 #include <math.h>
34 #include <unistd.h>
35
36 // avformat header files
37 #include <avformat.h>
38 #ifdef SWSCALE
39 #include <swscale.h>
40 #endif
41 #include <opt.h>
42
43 //
44 // This structure should be extended and made globally available in mlt
45 //
46
47 typedef struct
48 {
49 int16_t *buffer;
50 int size;
51 int used;
52 double time;
53 int frequency;
54 int channels;
55 }
56 *sample_fifo, sample_fifo_s;
57
58 sample_fifo sample_fifo_init( int frequency, int channels )
59 {
60 sample_fifo this = calloc( 1, sizeof( sample_fifo_s ) );
61 this->frequency = frequency;
62 this->channels = channels;
63 return this;
64 }
65
66 // sample_fifo_clear and check are temporarily aborted (not working as intended)
67
68 void sample_fifo_clear( sample_fifo this, double time )
69 {
70 int words = ( float )( time - this->time ) * this->frequency * this->channels;
71 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )this->time * 100 ) && this->used > words && words > 0 )
72 {
73 memmove( this->buffer, &this->buffer[ words ], ( this->used - words ) * sizeof( int16_t ) );
74 this->used -= words;
75 this->time = time;
76 }
77 else if ( ( int )( ( float )time * 100 ) != ( int )( ( float )this->time * 100 ) )
78 {
79 this->used = 0;
80 this->time = time;
81 }
82 }
83
84 void sample_fifo_check( sample_fifo this, double time )
85 {
86 if ( this->used == 0 )
87 {
88 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )this->time * 100 ) )
89 this->time = time;
90 }
91 }
92
93 void sample_fifo_append( sample_fifo this, int16_t *samples, int count )
94 {
95 if ( ( this->size - this->used ) < count )
96 {
97 this->size += count * 5;
98 this->buffer = realloc( this->buffer, this->size * sizeof( int16_t ) );
99 }
100
101 memcpy( &this->buffer[ this->used ], samples, count * sizeof( int16_t ) );
102 this->used += count;
103 }
104
105 int sample_fifo_used( sample_fifo this )
106 {
107 return this->used;
108 }
109
110 int sample_fifo_fetch( sample_fifo this, int16_t *samples, int count )
111 {
112 if ( count > this->used )
113 count = this->used;
114
115 memcpy( samples, this->buffer, count * sizeof( int16_t ) );
116 this->used -= count;
117 memmove( this->buffer, &this->buffer[ count ], this->used * sizeof( int16_t ) );
118
119 this->time += ( double )count / this->channels / this->frequency;
120
121 return count;
122 }
123
124 void sample_fifo_close( sample_fifo this )
125 {
126 free( this->buffer );
127 free( this );
128 }
129
130 // Forward references.
131 static int consumer_start( mlt_consumer this );
132 static int consumer_stop( mlt_consumer this );
133 static int consumer_is_stopped( mlt_consumer this );
134 static void *consumer_thread( void *arg );
135 static void consumer_close( mlt_consumer this );
136
137 /** Initialise the dv consumer.
138 */
139
140 mlt_consumer consumer_avformat_init( mlt_profile profile, char *arg )
141 {
142 // Allocate the consumer
143 mlt_consumer this = mlt_consumer_new( profile );
144
145 // If memory allocated and initialises without error
146 if ( this != NULL )
147 {
148 // Get properties from the consumer
149 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
150
151 // Assign close callback
152 this->close = consumer_close;
153
154 // Interpret the argument
155 if ( arg != NULL )
156 mlt_properties_set( properties, "target", arg );
157
158 // sample and frame queue
159 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
160
161 // Audio options not fully handled by AVOptions
162 #define QSCALE_NONE (-99999)
163 mlt_properties_set_int( properties, "aq", QSCALE_NONE );
164
165 // Video options not fully handled by AVOptions
166 mlt_properties_set_int( properties, "dc", 8 );
167
168 // Muxer options not fully handled by AVOptions
169 mlt_properties_set_double( properties, "muxdelay", 0.7 );
170 mlt_properties_set_double( properties, "muxpreload", 0.5 );
171
172 // Ensure termination at end of the stream
173 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
174
175 // Default to separate processing threads for producer and consumer with no frame dropping!
176 mlt_properties_set_int( properties, "real_time", -1 );
177
178 // Set up start/stop/terminated callbacks
179 this->start = consumer_start;
180 this->stop = consumer_stop;
181 this->is_stopped = consumer_is_stopped;
182 }
183
184 // Return this
185 return this;
186 }
187
188 /** Start the consumer.
189 */
190
191 static int consumer_start( mlt_consumer this )
192 {
193 // Get the properties
194 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
195
196 // Check that we're not already running
197 if ( !mlt_properties_get_int( properties, "running" ) )
198 {
199 // Allocate a thread
200 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
201
202 // Get the width and height
203 int width = mlt_properties_get_int( properties, "width" );
204 int height = mlt_properties_get_int( properties, "height" );
205
206 // Obtain the size property
207 char *size = mlt_properties_get( properties, "s" );
208
209 // Interpret it
210 if ( size != NULL )
211 {
212 int tw, th;
213 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
214 {
215 width = tw;
216 height = th;
217 }
218 else
219 {
220 fprintf( stderr, "%s: Invalid size property %s - ignoring.\n", __FILE__, size );
221 }
222 }
223
224 // Now ensure we honour the multiple of two requested by libavformat
225 width = ( width / 2 ) * 2;
226 height = ( height / 2 ) * 2;
227 mlt_properties_set_int( properties, "width", width );
228 mlt_properties_set_int( properties, "height", height );
229
230 // We need to set these on the profile as well because the s property is
231 // an alias to mlt properties that correspond to profile settings.
232 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
233 if ( profile )
234 {
235 profile->width = width;
236 profile->height = height;
237 }
238
239 // Handle the ffmpeg command line "-r" property for frame rate
240 if ( mlt_properties_get( properties, "r" ) )
241 {
242 double frame_rate = mlt_properties_get_double( properties, "r" );
243 AVRational rational = av_d2q( frame_rate, 255 );
244 mlt_properties_set_int( properties, "frame_rate_num", rational.num );
245 mlt_properties_set_int( properties, "frame_rate_den", rational.den );
246 if ( profile )
247 {
248 profile->frame_rate_num = rational.num;
249 profile->frame_rate_den = rational.den;
250 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
251 }
252 }
253
254 // Apply AVOptions that are synonyms for standard mlt_consumer options
255 if ( mlt_properties_get( properties, "ac" ) )
256 mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
257 if ( mlt_properties_get( properties, "ar" ) )
258 mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
259
260 // Assign the thread to properties
261 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
262
263 // Set the running state
264 mlt_properties_set_int( properties, "running", 1 );
265
266 // Create the thread
267 pthread_create( thread, NULL, consumer_thread, this );
268 }
269 return 0;
270 }
271
272 /** Stop the consumer.
273 */
274
275 static int consumer_stop( mlt_consumer this )
276 {
277 // Get the properties
278 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
279
280 // Check that we're running
281 if ( mlt_properties_get_int( properties, "running" ) )
282 {
283 // Get the thread
284 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
285
286 // Stop the thread
287 mlt_properties_set_int( properties, "running", 0 );
288
289 // Wait for termination
290 pthread_join( *thread, NULL );
291 }
292
293 return 0;
294 }
295
296 /** Determine if the consumer is stopped.
297 */
298
299 static int consumer_is_stopped( mlt_consumer this )
300 {
301 // Get the properties
302 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
303 return !mlt_properties_get_int( properties, "running" );
304 }
305
306 /** Process properties as AVOptions and apply to AV context obj
307 */
308
309 static void apply_properties( void *obj, mlt_properties properties, int flags )
310 {
311 int i;
312 int count = mlt_properties_count( properties );
313 for ( i = 0; i < count; i++ )
314 {
315 const char *opt_name = mlt_properties_get_name( properties, i );
316 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
317 if ( opt != NULL )
318 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
319 av_set_string3( obj, opt_name, mlt_properties_get( properties, opt_name), 0, NULL );
320 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
321 av_set_string2( obj, opt_name, mlt_properties_get( properties, opt_name), 0 );
322 #else
323 av_set_string( obj, opt_name, mlt_properties_get( properties, opt_name) );
324 #endif
325 }
326 }
327
328 /** Add an audio output stream
329 */
330
331 static AVStream *add_audio_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
332 {
333 // Get the properties
334 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
335
336 // Create a new stream
337 AVStream *st = av_new_stream( oc, 1 );
338
339 // If created, then initialise from properties
340 if ( st != NULL )
341 {
342 AVCodecContext *c = st->codec;
343
344 // Establish defaults from AVOptions
345 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
346
347 c->codec_id = codec_id;
348 c->codec_type = CODEC_TYPE_AUDIO;
349
350 // Setup multi-threading
351 int thread_count = mlt_properties_get_int( properties, "threads" );
352 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
353 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
354 if ( thread_count > 1 )
355 avcodec_thread_init( c, thread_count );
356
357 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
358 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
359
360 // Allow the user to override the audio fourcc
361 if ( mlt_properties_get( properties, "atag" ) )
362 {
363 char *tail = NULL;
364 char *arg = mlt_properties_get( properties, "atag" );
365 int tag = strtol( arg, &tail, 0);
366 if( !tail || *tail )
367 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
368 c->codec_tag = tag;
369 }
370
371 // Process properties as AVOptions
372 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
373
374 int audio_qscale = mlt_properties_get_int( properties, "aq" );
375 if ( audio_qscale > QSCALE_NONE )
376 {
377 c->flags |= CODEC_FLAG_QSCALE;
378 c->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
379 }
380
381 // Set parameters controlled by MLT
382 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
383 c->channels = mlt_properties_get_int( properties, "channels" );
384
385 if ( mlt_properties_get( properties, "alang" ) != NULL )
386 strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
387 }
388 else
389 {
390 fprintf( stderr, "%s: Could not allocate a stream for audio\n", __FILE__ );
391 }
392
393 return st;
394 }
395
396 static int open_audio( AVFormatContext *oc, AVStream *st, int audio_outbuf_size )
397 {
398 // We will return the audio input size from here
399 int audio_input_frame_size = 0;
400
401 // Get the context
402 AVCodecContext *c = st->codec;
403
404 // Find the encoder
405 AVCodec *codec = avcodec_find_encoder( c->codec_id );
406
407 // Continue if codec found and we can open it
408 if ( codec != NULL && avcodec_open( c, codec ) >= 0 )
409 {
410 // ugly hack for PCM codecs (will be removed ASAP with new PCM
411 // support to compute the input frame size in samples
412 if ( c->frame_size <= 1 )
413 {
414 audio_input_frame_size = audio_outbuf_size / c->channels;
415 switch(st->codec->codec_id)
416 {
417 case CODEC_ID_PCM_S16LE:
418 case CODEC_ID_PCM_S16BE:
419 case CODEC_ID_PCM_U16LE:
420 case CODEC_ID_PCM_U16BE:
421 audio_input_frame_size >>= 1;
422 break;
423 default:
424 break;
425 }
426 }
427 else
428 {
429 audio_input_frame_size = c->frame_size;
430 }
431
432 // Some formats want stream headers to be seperate (hmm)
433 if( !strcmp( oc->oformat->name, "mp4" ) ||
434 !strcmp( oc->oformat->name, "mov" ) ||
435 !strcmp( oc->oformat->name, "3gp" ) )
436 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
437 }
438 else
439 {
440 fprintf( stderr, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
441 }
442
443 return audio_input_frame_size;
444 }
445
446 static void close_audio( AVFormatContext *oc, AVStream *st )
447 {
448 avcodec_close( st->codec );
449 }
450
451 /** Add a video output stream
452 */
453
454 static AVStream *add_video_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
455 {
456 // Get the properties
457 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
458
459 // Create a new stream
460 AVStream *st = av_new_stream( oc, 0 );
461
462 if ( st != NULL )
463 {
464 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
465 AVCodecContext *c = st->codec;
466
467 // Establish defaults from AVOptions
468 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
469
470 c->codec_id = codec_id;
471 c->codec_type = CODEC_TYPE_VIDEO;
472
473 // Setup multi-threading
474 int thread_count = mlt_properties_get_int( properties, "threads" );
475 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
476 thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
477 if ( thread_count > 1 )
478 avcodec_thread_init( c, thread_count );
479
480 // Process properties as AVOptions
481 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
482
483 // Set options controlled by MLT
484 c->width = mlt_properties_get_int( properties, "width" );
485 c->height = mlt_properties_get_int( properties, "height" );
486 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
487 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
488 st->time_base = c->time_base;
489 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
490
491 if ( codec_id == CODEC_ID_DVVIDEO )
492 {
493 // Compensate for FFmpeg's notion of DV aspect ratios, which are
494 // based upon a width of 704. Since we do not have a normaliser
495 // that crops (nor is cropping 720 wide ITU-R 601 video always desirable)
496 // we just coerce the values to facilitate a passive behaviour through
497 // the rescale normaliser when using equivalent producers and consumers.
498 // = display_aspect / (width * height)
499 double ar = mlt_properties_get_double( properties, "aspect_ratio" );
500 if ( ar == 8.0/9.0 ) // 4:3 NTSC
501 {
502 c->sample_aspect_ratio.num = 10;
503 c->sample_aspect_ratio.den = 11;
504 }
505 else if ( ar == 16.0/15.0 ) // 4:3 PAL
506 {
507 c->sample_aspect_ratio.num = 59;
508 c->sample_aspect_ratio.den = 54;
509 }
510 else if ( ar == 32.0/27.0 ) // 16:9 NTSC
511 {
512 c->sample_aspect_ratio.num = 40;
513 c->sample_aspect_ratio.den = 33;
514 }
515 else // 16:9 PAL
516 {
517 c->sample_aspect_ratio.num = 118;
518 c->sample_aspect_ratio.den = 82;
519 }
520 }
521 else if ( mlt_properties_get( properties, "aspect" ) )
522 {
523 // "-aspect" on ffmpeg command line is display aspect ratio
524 double ar = mlt_properties_get_double( properties, "aspect" );
525 AVRational rational = av_d2q( ar, 255 );
526
527 // Update the profile and properties as well since this is an alias
528 // for mlt properties that correspond to profile settings
529 mlt_properties_set_int( properties, "display_aspect_num", rational.num );
530 mlt_properties_set_int( properties, "display_aspect_den", rational.den );
531 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
532 if ( profile )
533 {
534 profile->display_aspect_num = rational.num;
535 profile->display_aspect_den = rational.den;
536 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
537 }
538
539 // Now compute the sample aspect ratio
540 rational = av_d2q( ar * c->height / c->width, 255 );
541 c->sample_aspect_ratio = rational;
542 // Update the profile and properties as well since this is an alias
543 // for mlt properties that correspond to profile settings
544 mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
545 mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
546 if ( profile )
547 {
548 profile->sample_aspect_num = rational.num;
549 profile->sample_aspect_den = rational.den;
550 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
551 }
552
553 }
554 else
555 {
556 c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
557 c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
558 }
559 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
560 st->sample_aspect_ratio = c->sample_aspect_ratio;
561 #endif
562
563 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
564 {
565 c->flags |= CODEC_FLAG_QSCALE;
566 st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
567 }
568
569 // Allow the user to override the video fourcc
570 if ( mlt_properties_get( properties, "vtag" ) )
571 {
572 char *tail = NULL;
573 const char *arg = mlt_properties_get( properties, "vtag" );
574 int tag = strtol( arg, &tail, 0);
575 if( !tail || *tail )
576 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
577 c->codec_tag = tag;
578 }
579
580 // Some formats want stream headers to be seperate
581 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
582 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
583
584 // Translate these standard mlt consumer properties to ffmpeg
585 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
586 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
587 {
588 if ( mlt_properties_get_int( properties, "ildct" ) )
589 c->flags |= CODEC_FLAG_INTERLACED_DCT;
590 if ( mlt_properties_get_int( properties, "ilme" ) )
591 c->flags |= CODEC_FLAG_INTERLACED_ME;
592 }
593
594 // parse the ratecontrol override string
595 int i;
596 char *rc_override = mlt_properties_get( properties, "rc_override" );
597 for ( i = 0; rc_override; i++ )
598 {
599 int start, end, q;
600 int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
601 if ( e != 3 )
602 fprintf( stderr, "%s: Error parsing rc_override\n", __FILE__ );
603 c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
604 c->rc_override[i].start_frame = start;
605 c->rc_override[i].end_frame = end;
606 if ( q > 0 )
607 {
608 c->rc_override[i].qscale = q;
609 c->rc_override[i].quality_factor = 1.0;
610 }
611 else
612 {
613 c->rc_override[i].qscale = 0;
614 c->rc_override[i].quality_factor = -q / 100.0;
615 }
616 rc_override = strchr( rc_override, '/' );
617 if ( rc_override )
618 rc_override++;
619 }
620 c->rc_override_count = i;
621 if ( !c->rc_initial_buffer_occupancy )
622 c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
623 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
624
625 // Setup dual-pass
626 i = mlt_properties_get_int( properties, "pass" );
627 if ( i == 1 )
628 c->flags |= CODEC_FLAG_PASS1;
629 else if ( i == 2 )
630 c->flags |= CODEC_FLAG_PASS2;
631 if ( codec_id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
632 {
633 char logfilename[1024];
634 FILE *f;
635 int size;
636 char *logbuffer;
637
638 snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
639 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
640 if ( c->flags & CODEC_FLAG_PASS1 )
641 {
642 f = fopen( logfilename, "w" );
643 if ( !f )
644 perror( logfilename );
645 else
646 mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
647 }
648 else
649 {
650 /* read the log file */
651 f = fopen( logfilename, "r" );
652 if ( !f )
653 {
654 perror(logfilename);
655 }
656 else
657 {
658 mlt_properties_set( properties, "_logfilename", logfilename );
659 fseek( f, 0, SEEK_END );
660 size = ftell( f );
661 fseek( f, 0, SEEK_SET );
662 logbuffer = av_malloc( size + 1 );
663 if ( !logbuffer )
664 fprintf( stderr, "%s: Could not allocate log buffer\n", __FILE__ );
665 else
666 {
667 size = fread( logbuffer, 1, size, f );
668 fclose( f );
669 logbuffer[size] = '\0';
670 c->stats_in = logbuffer;
671 mlt_properties_set_data( properties, "_logbuffer", logbuffer, 0, ( mlt_destructor )av_free, NULL );
672 }
673 }
674 }
675 }
676 }
677 else
678 {
679 fprintf( stderr, "%s: Could not allocate a stream for video\n", __FILE__ );
680 }
681
682 return st;
683 }
684
685 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
686 {
687 // Allocate a frame
688 AVFrame *picture = avcodec_alloc_frame();
689
690 // Determine size of the
691 int size = avpicture_get_size(pix_fmt, width, height);
692
693 // Allocate the picture buf
694 uint8_t *picture_buf = av_malloc(size);
695
696 // If we have both, then fill the image
697 if ( picture != NULL && picture_buf != NULL )
698 {
699 // Fill the frame with the allocated buffer
700 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
701 }
702 else
703 {
704 // Something failed - clean up what we can
705 av_free( picture );
706 av_free( picture_buf );
707 picture = NULL;
708 }
709
710 return picture;
711 }
712
713 static int open_video(AVFormatContext *oc, AVStream *st)
714 {
715 // Get the codec
716 AVCodecContext *video_enc = st->codec;
717
718 // find the video encoder
719 AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
720
721 if( codec && codec->pix_fmts )
722 {
723 const enum PixelFormat *p = codec->pix_fmts;
724 for( ; *p!=-1; p++ )
725 {
726 if( *p == video_enc->pix_fmt )
727 break;
728 }
729 if( *p == -1 )
730 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
731 }
732
733 // Open the codec safely
734 return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
735 }
736
737 void close_video(AVFormatContext *oc, AVStream *st)
738 {
739 avcodec_close(st->codec);
740 }
741
742 static inline long time_difference( struct timeval *time1 )
743 {
744 struct timeval time2;
745 gettimeofday( &time2, NULL );
746 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
747 }
748
749 /** The main thread - the argument is simply the consumer.
750 */
751
752 static void *consumer_thread( void *arg )
753 {
754 // Map the argument to the object
755 mlt_consumer this = arg;
756
757 // Get the properties
758 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
759
760 // Get the terminate on pause property
761 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
762 int terminated = 0;
763
764 // Determine if feed is slow (for realtime stuff)
765 int real_time_output = mlt_properties_get_int( properties, "real_time" );
766
767 // Time structures
768 struct timeval ante;
769
770 // Get the frame rate
771 double fps = mlt_properties_get_double( properties, "fps" );
772
773 // Get width and height
774 int width = mlt_properties_get_int( properties, "width" );
775 int height = mlt_properties_get_int( properties, "height" );
776 int img_width = width;
777 int img_height = height;
778
779 // Get default audio properties
780 mlt_audio_format aud_fmt = mlt_audio_pcm;
781 int channels = mlt_properties_get_int( properties, "channels" );
782 int frequency = mlt_properties_get_int( properties, "frequency" );
783 int16_t *pcm = NULL;
784 int samples = 0;
785
786 // AVFormat audio buffer and frame size
787 int audio_outbuf_size = 10000;
788 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
789 int audio_input_frame_size = 0;
790
791 // AVFormat video buffer and frame count
792 int frame_count = 0;
793 int video_outbuf_size = ( 1024 * 1024 );
794 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
795
796 // Used for the frame properties
797 mlt_frame frame = NULL;
798 mlt_properties frame_properties = NULL;
799
800 // Get the queues
801 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
802 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
803
804 // Need two av pictures for converting
805 AVFrame *output = NULL;
806 AVFrame *input = alloc_picture( PIX_FMT_YUV422, width, height );
807
808 // For receiving images from an mlt_frame
809 uint8_t *image;
810 mlt_image_format img_fmt = mlt_image_yuv422;
811
812 // For receiving audio samples back from the fifo
813 int16_t *buffer = av_malloc( 48000 * 2 );
814 int count = 0;
815
816 // Allocate the context
817 AVFormatContext *oc = av_alloc_format_context( );
818
819 // Streams
820 AVStream *audio_st = NULL;
821 AVStream *video_st = NULL;
822
823 // Time stamps
824 double audio_pts = 0;
825 double video_pts = 0;
826
827 // Loop variable
828 int i;
829
830 // Frames despatched
831 long int frames = 0;
832 long int total_time = 0;
833
834 // Determine the format
835 AVOutputFormat *fmt = NULL;
836 char *filename = mlt_properties_get( properties, "target" );
837 char *format = mlt_properties_get( properties, "f" );
838 char *vcodec = mlt_properties_get( properties, "vcodec" );
839 char *acodec = mlt_properties_get( properties, "acodec" );
840
841 // Used to store and override codec ids
842 int audio_codec_id;
843 int video_codec_id;
844
845 // Check for user selected format first
846 if ( format != NULL )
847 fmt = guess_format( format, NULL, NULL );
848
849 // Otherwise check on the filename
850 if ( fmt == NULL && filename != NULL )
851 fmt = guess_format( NULL, filename, NULL );
852
853 // Otherwise default to mpeg
854 if ( fmt == NULL )
855 fmt = guess_format( "mpeg", NULL, NULL );
856
857 // We need a filename - default to stdout?
858 if ( filename == NULL || !strcmp( filename, "" ) )
859 filename = "pipe:";
860
861 // Get the codec ids selected
862 audio_codec_id = fmt->audio_codec;
863 video_codec_id = fmt->video_codec;
864
865 // Check for audio codec overides
866 if ( acodec != NULL )
867 {
868 AVCodec *p = avcodec_find_encoder_by_name( acodec );
869 if ( p != NULL )
870 audio_codec_id = p->id;
871 else
872 fprintf( stderr, "%s: audio codec %s unrecognised - ignoring\n", __FILE__, acodec );
873 }
874
875 // Check for video codec overides
876 if ( vcodec != NULL )
877 {
878 AVCodec *p = avcodec_find_encoder_by_name( vcodec );
879 if ( p != NULL )
880 video_codec_id = p->id;
881 else
882 fprintf( stderr, "%s: video codec %s unrecognised - ignoring\n", __FILE__, vcodec );
883 }
884
885 // Write metadata
886 char *tmp = NULL;
887 int metavalue;
888
889 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
890 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
891
892 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
893 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
894
895 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
896 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
897
898 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
899 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
900
901 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
902 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
903
904 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
905 if (metavalue != 0) oc->year = metavalue;
906
907 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
908 if (metavalue != 0) oc->track = metavalue;
909
910 oc->oformat = fmt;
911 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
912
913 // Add audio and video streams
914 if ( fmt->video_codec != CODEC_ID_NONE )
915 video_st = add_video_stream( this, oc, video_codec_id );
916 if ( fmt->audio_codec != CODEC_ID_NONE )
917 audio_st = add_audio_stream( this, oc, audio_codec_id );
918
919 // Set the parameters (even though we have none...)
920 if ( av_set_parameters(oc, NULL) >= 0 )
921 {
922 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
923 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
924
925 // Process properties as AVOptions
926 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
927
928 if ( video_st && !open_video( oc, video_st ) )
929 video_st = NULL;
930 if ( audio_st )
931 audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
932
933 // Open the output file, if needed
934 if ( !( fmt->flags & AVFMT_NOFILE ) )
935 {
936 if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
937 {
938 fprintf( stderr, "%s: Could not open '%s'\n", __FILE__, filename );
939 mlt_properties_set_int( properties, "running", 0 );
940 }
941 }
942
943 // Write the stream header, if any
944 if ( mlt_properties_get_int( properties, "running" ) )
945 av_write_header( oc );
946 }
947 else
948 {
949 fprintf( stderr, "%s: Invalid output format parameters\n", __FILE__ );
950 mlt_properties_set_int( properties, "running", 0 );
951 }
952
953 // Allocate picture
954 if ( video_st )
955 output = alloc_picture( video_st->codec->pix_fmt, width, height );
956
957 // Last check - need at least one stream
958 if ( audio_st == NULL && video_st == NULL )
959 mlt_properties_set_int( properties, "running", 0 );
960
961 // Get the starting time (can ignore the times above)
962 gettimeofday( &ante, NULL );
963
964 // Loop while running
965 while( mlt_properties_get_int( properties, "running" ) && !terminated )
966 {
967 // Get the frame
968 frame = mlt_consumer_rt_frame( this );
969
970 // Check that we have a frame to work with
971 if ( frame != NULL )
972 {
973 // Increment frames despatched
974 frames ++;
975
976 // Default audio args
977 frame_properties = MLT_FRAME_PROPERTIES( frame );
978
979 // Check for the terminated condition
980 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
981
982 // Get audio and append to the fifo
983 if ( !terminated && audio_st )
984 {
985 samples = mlt_sample_calculator( fps, frequency, count ++ );
986 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
987
988 // Create the fifo if we don't have one
989 if ( fifo == NULL )
990 {
991 fifo = sample_fifo_init( frequency, channels );
992 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
993 }
994
995 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
996 memset( pcm, 0, samples * channels * 2 );
997
998 // Append the samples
999 sample_fifo_append( fifo, pcm, samples * channels );
1000 total_time += ( samples * 1000000 ) / frequency;
1001 }
1002
1003 // Encode the image
1004 if ( !terminated && video_st )
1005 mlt_deque_push_back( queue, frame );
1006 else
1007 mlt_frame_close( frame );
1008 }
1009
1010 // While we have stuff to process, process...
1011 while ( 1 )
1012 {
1013 if (audio_st)
1014 audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
1015 else
1016 audio_pts = 0.0;
1017
1018 if (video_st)
1019 video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
1020 else
1021 video_pts = 0.0;
1022
1023 // Write interleaved audio and video frames
1024 if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
1025 {
1026 if ( channels * audio_input_frame_size < sample_fifo_used( fifo ) )
1027 {
1028 AVCodecContext *c;
1029 AVPacket pkt;
1030 av_init_packet( &pkt );
1031
1032 c = audio_st->codec;
1033
1034 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1035
1036 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1037 // Write the compressed frame in the media file
1038 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1039 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1040 pkt.flags |= PKT_FLAG_KEY;
1041 pkt.stream_index= audio_st->index;
1042 pkt.data= audio_outbuf;
1043
1044 if ( pkt.size )
1045 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
1046 fprintf( stderr, "%s: Error while writing audio frame\n", __FILE__ );
1047
1048 audio_pts += c->frame_size;
1049 }
1050 else
1051 {
1052 break;
1053 }
1054 }
1055 else if ( video_st )
1056 {
1057 if ( mlt_deque_count( queue ) )
1058 {
1059 int out_size, ret;
1060 AVCodecContext *c;
1061
1062 frame = mlt_deque_pop_front( queue );
1063 frame_properties = MLT_FRAME_PROPERTIES( frame );
1064
1065 c = video_st->codec;
1066
1067 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1068 {
1069 int i = 0;
1070 int j = 0;
1071 uint8_t *p;
1072 uint8_t *q;
1073
1074 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1075
1076 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1077
1078 q = image;
1079
1080 // Convert the mlt frame to an AVPicture
1081 for ( i = 0; i < height; i ++ )
1082 {
1083 p = input->data[ 0 ] + i * input->linesize[ 0 ];
1084 j = width;
1085 while( j -- )
1086 {
1087 *p ++ = *q ++;
1088 *p ++ = *q ++;
1089 }
1090 }
1091
1092 // Do the colour space conversion
1093 #ifdef SWSCALE
1094 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUV422,
1095 width, height, video_st->codec->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL);
1096 sws_scale( context, input->data, input->linesize, 0, height,
1097 output->data, output->linesize);
1098 sws_freeContext( context );
1099 #else
1100 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUV422, width, height );
1101 #endif
1102
1103 // Apply the alpha if applicable
1104 if ( video_st->codec->pix_fmt == PIX_FMT_RGBA32 )
1105 {
1106 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1107 register int n;
1108
1109 for ( i = 0; i < height; i ++ )
1110 {
1111 n = ( width + 7 ) / 8;
1112 p = output->data[ 0 ] + i * output->linesize[ 0 ];
1113
1114 #ifndef __DARWIN__
1115 p += 3;
1116 #endif
1117
1118 switch( width % 8 )
1119 {
1120 case 0: do { *p = *alpha++; p += 4;
1121 case 7: *p = *alpha++; p += 4;
1122 case 6: *p = *alpha++; p += 4;
1123 case 5: *p = *alpha++; p += 4;
1124 case 4: *p = *alpha++; p += 4;
1125 case 3: *p = *alpha++; p += 4;
1126 case 2: *p = *alpha++; p += 4;
1127 case 1: *p = *alpha++; p += 4;
1128 }
1129 while( --n );
1130 }
1131 }
1132 }
1133 }
1134
1135 if (oc->oformat->flags & AVFMT_RAWPICTURE)
1136 {
1137 // raw video case. The API will change slightly in the near future for that
1138 AVPacket pkt;
1139 av_init_packet(&pkt);
1140
1141 pkt.flags |= PKT_FLAG_KEY;
1142 pkt.stream_index= video_st->index;
1143 pkt.data= (uint8_t *)output;
1144 pkt.size= sizeof(AVPicture);
1145
1146 ret = av_write_frame(oc, &pkt);
1147 video_pts += c->frame_size;
1148 }
1149 else
1150 {
1151 // Set the quality
1152 output->quality = video_st->quality;
1153
1154 // Set frame interlace hints
1155 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1156 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1157
1158 // Encode the image
1159 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1160
1161 // If zero size, it means the image was buffered
1162 if (out_size > 0)
1163 {
1164 AVPacket pkt;
1165 av_init_packet( &pkt );
1166
1167 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1168 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1169 if( c->coded_frame && c->coded_frame->key_frame )
1170 pkt.flags |= PKT_FLAG_KEY;
1171 pkt.stream_index= video_st->index;
1172 pkt.data= video_outbuf;
1173 pkt.size= out_size;
1174
1175 // write the compressed frame in the media file
1176 ret = av_interleaved_write_frame(oc, &pkt);
1177 video_pts += c->frame_size;
1178
1179 // Dual pass logging
1180 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out)
1181 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1182 }
1183 else
1184 {
1185 fprintf( stderr, "%s: error with video encode\n", __FILE__ );
1186 }
1187 }
1188 frame_count++;
1189 mlt_frame_close( frame );
1190 }
1191 else
1192 {
1193 break;
1194 }
1195 }
1196 }
1197
1198 if ( real_time_output == 1 && frames % 12 == 0 )
1199 {
1200 long passed = time_difference( &ante );
1201 if ( fifo != NULL )
1202 {
1203 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1204 passed -= pending;
1205 }
1206 if ( passed < total_time )
1207 {
1208 long total = ( total_time - passed );
1209 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1210 nanosleep( &t, NULL );
1211 }
1212 }
1213 }
1214
1215 #ifdef FLUSH
1216 if ( ! real_time_output )
1217 {
1218 // Flush audio fifo
1219 if ( audio_st && audio_st->codec->frame_size > 1 ) for (;;)
1220 {
1221 AVCodecContext *c = audio_st->codec;
1222 AVPacket pkt;
1223 av_init_packet( &pkt );
1224 pkt.size = 0;
1225
1226 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1227 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1228 {
1229 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1230 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1231 }
1232 if ( pkt.size <= 0 )
1233 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1234 if ( pkt.size <= 0 )
1235 break;
1236
1237 // Write the compressed frame in the media file
1238 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1239 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1240 pkt.flags |= PKT_FLAG_KEY;
1241 pkt.stream_index = audio_st->index;
1242 pkt.data = audio_outbuf;
1243 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1244 {
1245 fprintf( stderr, "%s: Error while writing flushed audio frame\n", __FILE__ );
1246 break;
1247 }
1248 }
1249
1250 // Flush video
1251 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1252 {
1253 AVCodecContext *c = video_st->codec;
1254 AVPacket pkt;
1255 av_init_packet( &pkt );
1256
1257 // Encode the image
1258 pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1259 if ( pkt.size <= 0 )
1260 break;
1261
1262 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1263 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1264 if( c->coded_frame && c->coded_frame->key_frame )
1265 pkt.flags |= PKT_FLAG_KEY;
1266 pkt.stream_index = video_st->index;
1267 pkt.data = video_outbuf;
1268
1269 // write the compressed frame in the media file
1270 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1271 {
1272 fprintf( stderr, "%s: Error while writing flushed video frame\n". __FILE__ );
1273 break;
1274 }
1275 }
1276 }
1277 #endif
1278
1279 // close each codec
1280 if (video_st)
1281 close_video(oc, video_st);
1282 if (audio_st)
1283 close_audio(oc, audio_st);
1284
1285 // Write the trailer, if any
1286 av_write_trailer(oc);
1287
1288 // Free the streams
1289 for(i = 0; i < oc->nb_streams; i++)
1290 av_freep(&oc->streams[i]);
1291
1292 // Close the output file
1293 if (!(fmt->flags & AVFMT_NOFILE))
1294 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1295 url_fclose(oc->pb);
1296 #else
1297 url_fclose(&oc->pb);
1298 #endif
1299
1300 // Clean up input and output frames
1301 if ( output )
1302 av_free( output->data[0] );
1303 av_free( output );
1304 av_free( input->data[0] );
1305 av_free( input );
1306 av_free( video_outbuf );
1307 av_free( buffer );
1308
1309 // Free the stream
1310 av_free(oc);
1311
1312 // Just in case we terminated on pause
1313 mlt_properties_set_int( properties, "running", 0 );
1314
1315 mlt_consumer_stopped( this );
1316
1317 if ( mlt_properties_get_int( properties, "pass" ) == 2 )
1318 {
1319 // Remove the dual pass log file
1320 if ( mlt_properties_get( properties, "_logfilename" ) )
1321 remove( mlt_properties_get( properties, "_logfilename" ) );
1322
1323 // Remove the x264 dual pass logs
1324 char *cwd = getcwd( NULL, 0 );
1325 char *file = "x264_2pass.log";
1326 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1327 sprintf( full, "%s/%s", cwd, file );
1328 remove( full );
1329 free( full );
1330 file = "x264_2pass.log.temp";
1331 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1332 sprintf( full, "%s/%s", cwd, file );
1333 remove( full );
1334 free( full );
1335 free( cwd );
1336 remove( "x264_2pass.log.temp" );
1337 }
1338
1339 return NULL;
1340 }
1341
1342 /** Close the consumer.
1343 */
1344
1345 static void consumer_close( mlt_consumer this )
1346 {
1347 // Stop the consumer
1348 mlt_consumer_stop( this );
1349
1350 // Close the parent
1351 mlt_consumer_close( this );
1352
1353 // Free the memory
1354 free( this );
1355 }
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