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