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consumer_avformat.c: further analysis and testing reveals the DV encoder does not...
[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 ( mlt_properties_get( properties, "aspect" ) )
492 {
493 // "-aspect" on ffmpeg command line is display aspect ratio
494 double ar = mlt_properties_get_double( properties, "aspect" );
495 AVRational rational = av_d2q( ar, 255 );
496
497 // Update the profile and properties as well since this is an alias
498 // for mlt properties that correspond to profile settings
499 mlt_properties_set_int( properties, "display_aspect_num", rational.num );
500 mlt_properties_set_int( properties, "display_aspect_den", rational.den );
501 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
502 if ( profile )
503 {
504 profile->display_aspect_num = rational.num;
505 profile->display_aspect_den = rational.den;
506 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
507 }
508
509 // Now compute the sample aspect ratio
510 rational = av_d2q( ar * c->height / c->width, 255 );
511 c->sample_aspect_ratio = rational;
512 // Update the profile and properties as well since this is an alias
513 // for mlt properties that correspond to profile settings
514 mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
515 mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
516 if ( profile )
517 {
518 profile->sample_aspect_num = rational.num;
519 profile->sample_aspect_den = rational.den;
520 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
521 }
522 }
523 else
524 {
525 c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
526 c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
527 }
528 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
529 st->sample_aspect_ratio = c->sample_aspect_ratio;
530 #endif
531
532 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
533 {
534 c->flags |= CODEC_FLAG_QSCALE;
535 st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
536 }
537
538 // Allow the user to override the video fourcc
539 if ( mlt_properties_get( properties, "vtag" ) )
540 {
541 char *tail = NULL;
542 const char *arg = mlt_properties_get( properties, "vtag" );
543 int tag = strtol( arg, &tail, 0);
544 if( !tail || *tail )
545 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
546 c->codec_tag = tag;
547 }
548
549 // Some formats want stream headers to be seperate
550 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
551 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
552
553 // Translate these standard mlt consumer properties to ffmpeg
554 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
555 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
556 {
557 if ( mlt_properties_get_int( properties, "ildct" ) )
558 c->flags |= CODEC_FLAG_INTERLACED_DCT;
559 if ( mlt_properties_get_int( properties, "ilme" ) )
560 c->flags |= CODEC_FLAG_INTERLACED_ME;
561 }
562
563 // parse the ratecontrol override string
564 int i;
565 char *rc_override = mlt_properties_get( properties, "rc_override" );
566 for ( i = 0; rc_override; i++ )
567 {
568 int start, end, q;
569 int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
570 if ( e != 3 )
571 fprintf( stderr, "%s: Error parsing rc_override\n", __FILE__ );
572 c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
573 c->rc_override[i].start_frame = start;
574 c->rc_override[i].end_frame = end;
575 if ( q > 0 )
576 {
577 c->rc_override[i].qscale = q;
578 c->rc_override[i].quality_factor = 1.0;
579 }
580 else
581 {
582 c->rc_override[i].qscale = 0;
583 c->rc_override[i].quality_factor = -q / 100.0;
584 }
585 rc_override = strchr( rc_override, '/' );
586 if ( rc_override )
587 rc_override++;
588 }
589 c->rc_override_count = i;
590 if ( !c->rc_initial_buffer_occupancy )
591 c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
592 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
593
594 // Setup dual-pass
595 i = mlt_properties_get_int( properties, "pass" );
596 if ( i == 1 )
597 c->flags |= CODEC_FLAG_PASS1;
598 else if ( i == 2 )
599 c->flags |= CODEC_FLAG_PASS2;
600 if ( codec_id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
601 {
602 char logfilename[1024];
603 FILE *f;
604 int size;
605 char *logbuffer;
606
607 snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
608 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
609 if ( c->flags & CODEC_FLAG_PASS1 )
610 {
611 f = fopen( logfilename, "w" );
612 if ( !f )
613 perror( logfilename );
614 else
615 mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
616 }
617 else
618 {
619 /* read the log file */
620 f = fopen( logfilename, "r" );
621 if ( !f )
622 {
623 perror(logfilename);
624 }
625 else
626 {
627 mlt_properties_set( properties, "_logfilename", logfilename );
628 fseek( f, 0, SEEK_END );
629 size = ftell( f );
630 fseek( f, 0, SEEK_SET );
631 logbuffer = av_malloc( size + 1 );
632 if ( !logbuffer )
633 fprintf( stderr, "%s: Could not allocate log buffer\n", __FILE__ );
634 else
635 {
636 size = fread( logbuffer, 1, size, f );
637 fclose( f );
638 logbuffer[size] = '\0';
639 c->stats_in = logbuffer;
640 mlt_properties_set_data( properties, "_logbuffer", logbuffer, 0, ( mlt_destructor )av_free, NULL );
641 }
642 }
643 }
644 }
645 }
646 else
647 {
648 fprintf( stderr, "%s: Could not allocate a stream for video\n", __FILE__ );
649 }
650
651 return st;
652 }
653
654 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
655 {
656 // Allocate a frame
657 AVFrame *picture = avcodec_alloc_frame();
658
659 // Determine size of the
660 int size = avpicture_get_size(pix_fmt, width, height);
661
662 // Allocate the picture buf
663 uint8_t *picture_buf = av_malloc(size);
664
665 // If we have both, then fill the image
666 if ( picture != NULL && picture_buf != NULL )
667 {
668 // Fill the frame with the allocated buffer
669 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
670 }
671 else
672 {
673 // Something failed - clean up what we can
674 av_free( picture );
675 av_free( picture_buf );
676 picture = NULL;
677 }
678
679 return picture;
680 }
681
682 static int open_video(AVFormatContext *oc, AVStream *st)
683 {
684 // Get the codec
685 AVCodecContext *video_enc = st->codec;
686
687 // find the video encoder
688 AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
689
690 if( codec && codec->pix_fmts )
691 {
692 const enum PixelFormat *p = codec->pix_fmts;
693 for( ; *p!=-1; p++ )
694 {
695 if( *p == video_enc->pix_fmt )
696 break;
697 }
698 if( *p == -1 )
699 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
700 }
701
702 // Open the codec safely
703 return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
704 }
705
706 void close_video(AVFormatContext *oc, AVStream *st)
707 {
708 avcodec_close(st->codec);
709 }
710
711 static inline long time_difference( struct timeval *time1 )
712 {
713 struct timeval time2;
714 gettimeofday( &time2, NULL );
715 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
716 }
717
718 /** The main thread - the argument is simply the consumer.
719 */
720
721 static void *consumer_thread( void *arg )
722 {
723 // Map the argument to the object
724 mlt_consumer this = arg;
725
726 // Get the properties
727 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
728
729 // Get the terminate on pause property
730 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
731 int terminated = 0;
732
733 // Determine if feed is slow (for realtime stuff)
734 int real_time_output = mlt_properties_get_int( properties, "real_time" );
735
736 // Time structures
737 struct timeval ante;
738
739 // Get the frame rate
740 double fps = mlt_properties_get_double( properties, "fps" );
741
742 // Get width and height
743 int width = mlt_properties_get_int( properties, "width" );
744 int height = mlt_properties_get_int( properties, "height" );
745 int img_width = width;
746 int img_height = height;
747
748 // Get default audio properties
749 mlt_audio_format aud_fmt = mlt_audio_pcm;
750 int channels = mlt_properties_get_int( properties, "channels" );
751 int frequency = mlt_properties_get_int( properties, "frequency" );
752 int16_t *pcm = NULL;
753 int samples = 0;
754
755 // AVFormat audio buffer and frame size
756 int audio_outbuf_size = 10000;
757 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
758 int audio_input_frame_size = 0;
759
760 // AVFormat video buffer and frame count
761 int frame_count = 0;
762 int video_outbuf_size = ( 1024 * 1024 );
763 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
764
765 // Used for the frame properties
766 mlt_frame frame = NULL;
767 mlt_properties frame_properties = NULL;
768
769 // Get the queues
770 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
771 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
772
773 // Need two av pictures for converting
774 AVFrame *output = NULL;
775 AVFrame *input = alloc_picture( PIX_FMT_YUV422, width, height );
776
777 // For receiving images from an mlt_frame
778 uint8_t *image;
779 mlt_image_format img_fmt = mlt_image_yuv422;
780
781 // For receiving audio samples back from the fifo
782 int16_t *buffer = av_malloc( 48000 * 2 );
783 int count = 0;
784
785 // Allocate the context
786 AVFormatContext *oc = av_alloc_format_context( );
787
788 // Streams
789 AVStream *audio_st = NULL;
790 AVStream *video_st = NULL;
791
792 // Time stamps
793 double audio_pts = 0;
794 double video_pts = 0;
795
796 // Loop variable
797 int i;
798
799 // Frames despatched
800 long int frames = 0;
801 long int total_time = 0;
802
803 // Determine the format
804 AVOutputFormat *fmt = NULL;
805 char *filename = mlt_properties_get( properties, "target" );
806 char *format = mlt_properties_get( properties, "f" );
807 char *vcodec = mlt_properties_get( properties, "vcodec" );
808 char *acodec = mlt_properties_get( properties, "acodec" );
809
810 // Used to store and override codec ids
811 int audio_codec_id;
812 int video_codec_id;
813
814 // Check for user selected format first
815 if ( format != NULL )
816 fmt = guess_format( format, NULL, NULL );
817
818 // Otherwise check on the filename
819 if ( fmt == NULL && filename != NULL )
820 fmt = guess_format( NULL, filename, NULL );
821
822 // Otherwise default to mpeg
823 if ( fmt == NULL )
824 fmt = guess_format( "mpeg", NULL, NULL );
825
826 // We need a filename - default to stdout?
827 if ( filename == NULL || !strcmp( filename, "" ) )
828 filename = "pipe:";
829
830 // Get the codec ids selected
831 audio_codec_id = fmt->audio_codec;
832 video_codec_id = fmt->video_codec;
833
834 // Check for audio codec overides
835 if ( acodec != NULL )
836 {
837 AVCodec *p = avcodec_find_encoder_by_name( acodec );
838 if ( p != NULL )
839 audio_codec_id = p->id;
840 else
841 fprintf( stderr, "%s: audio codec %s unrecognised - ignoring\n", __FILE__, acodec );
842 }
843
844 // Check for video codec overides
845 if ( vcodec != NULL )
846 {
847 AVCodec *p = avcodec_find_encoder_by_name( vcodec );
848 if ( p != NULL )
849 video_codec_id = p->id;
850 else
851 fprintf( stderr, "%s: video codec %s unrecognised - ignoring\n", __FILE__, vcodec );
852 }
853
854 // Write metadata
855 char *tmp = NULL;
856 int metavalue;
857
858 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
859 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
860
861 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
862 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
863
864 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
865 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
866
867 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
868 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
869
870 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
871 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
872
873 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
874 if (metavalue != 0) oc->year = metavalue;
875
876 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
877 if (metavalue != 0) oc->track = metavalue;
878
879 oc->oformat = fmt;
880 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
881
882 // Add audio and video streams
883 if ( fmt->video_codec != CODEC_ID_NONE )
884 video_st = add_video_stream( this, oc, video_codec_id );
885 if ( fmt->audio_codec != CODEC_ID_NONE )
886 audio_st = add_audio_stream( this, oc, audio_codec_id );
887
888 // Set the parameters (even though we have none...)
889 if ( av_set_parameters(oc, NULL) >= 0 )
890 {
891 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
892 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
893
894 // Process properties as AVOptions
895 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
896
897 if ( video_st && !open_video( oc, video_st ) )
898 video_st = NULL;
899 if ( audio_st )
900 audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
901
902 // Open the output file, if needed
903 if ( !( fmt->flags & AVFMT_NOFILE ) )
904 {
905 if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
906 {
907 fprintf( stderr, "%s: Could not open '%s'\n", __FILE__, filename );
908 mlt_properties_set_int( properties, "running", 0 );
909 }
910 }
911
912 // Write the stream header, if any
913 if ( mlt_properties_get_int( properties, "running" ) )
914 av_write_header( oc );
915 }
916 else
917 {
918 fprintf( stderr, "%s: Invalid output format parameters\n", __FILE__ );
919 mlt_properties_set_int( properties, "running", 0 );
920 }
921
922 // Allocate picture
923 if ( video_st )
924 output = alloc_picture( video_st->codec->pix_fmt, width, height );
925
926 // Last check - need at least one stream
927 if ( audio_st == NULL && video_st == NULL )
928 mlt_properties_set_int( properties, "running", 0 );
929
930 // Get the starting time (can ignore the times above)
931 gettimeofday( &ante, NULL );
932
933 // Loop while running
934 while( mlt_properties_get_int( properties, "running" ) && !terminated )
935 {
936 // Get the frame
937 frame = mlt_consumer_rt_frame( this );
938
939 // Check that we have a frame to work with
940 if ( frame != NULL )
941 {
942 // Increment frames despatched
943 frames ++;
944
945 // Default audio args
946 frame_properties = MLT_FRAME_PROPERTIES( frame );
947
948 // Check for the terminated condition
949 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
950
951 // Get audio and append to the fifo
952 if ( !terminated && audio_st )
953 {
954 samples = mlt_sample_calculator( fps, frequency, count ++ );
955 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
956
957 // Create the fifo if we don't have one
958 if ( fifo == NULL )
959 {
960 fifo = sample_fifo_init( frequency, channels );
961 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
962 }
963
964 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
965 memset( pcm, 0, samples * channels * 2 );
966
967 // Append the samples
968 sample_fifo_append( fifo, pcm, samples * channels );
969 total_time += ( samples * 1000000 ) / frequency;
970 }
971
972 // Encode the image
973 if ( !terminated && video_st )
974 mlt_deque_push_back( queue, frame );
975 else
976 mlt_frame_close( frame );
977 }
978
979 // While we have stuff to process, process...
980 while ( 1 )
981 {
982 if (audio_st)
983 audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
984 else
985 audio_pts = 0.0;
986
987 if (video_st)
988 video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
989 else
990 video_pts = 0.0;
991
992 // Write interleaved audio and video frames
993 if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
994 {
995 if ( channels * audio_input_frame_size < sample_fifo_used( fifo ) )
996 {
997 AVCodecContext *c;
998 AVPacket pkt;
999 av_init_packet( &pkt );
1000
1001 c = audio_st->codec;
1002
1003 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1004
1005 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1006 // Write the compressed frame in the media file
1007 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1008 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1009 pkt.flags |= PKT_FLAG_KEY;
1010 pkt.stream_index= audio_st->index;
1011 pkt.data= audio_outbuf;
1012
1013 if ( pkt.size )
1014 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
1015 fprintf( stderr, "%s: Error while writing audio frame\n", __FILE__ );
1016
1017 audio_pts += c->frame_size;
1018 }
1019 else
1020 {
1021 break;
1022 }
1023 }
1024 else if ( video_st )
1025 {
1026 if ( mlt_deque_count( queue ) )
1027 {
1028 int out_size, ret;
1029 AVCodecContext *c;
1030
1031 frame = mlt_deque_pop_front( queue );
1032 frame_properties = MLT_FRAME_PROPERTIES( frame );
1033
1034 c = video_st->codec;
1035
1036 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1037 {
1038 int i = 0;
1039 int j = 0;
1040 uint8_t *p;
1041 uint8_t *q;
1042
1043 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1044
1045 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1046
1047 q = image;
1048
1049 // Convert the mlt frame to an AVPicture
1050 for ( i = 0; i < height; i ++ )
1051 {
1052 p = input->data[ 0 ] + i * input->linesize[ 0 ];
1053 j = width;
1054 while( j -- )
1055 {
1056 *p ++ = *q ++;
1057 *p ++ = *q ++;
1058 }
1059 }
1060
1061 // Do the colour space conversion
1062 #ifdef SWSCALE
1063 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUV422,
1064 width, height, video_st->codec->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL);
1065 sws_scale( context, input->data, input->linesize, 0, height,
1066 output->data, output->linesize);
1067 sws_freeContext( context );
1068 #else
1069 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUV422, width, height );
1070 #endif
1071
1072 // Apply the alpha if applicable
1073 if ( video_st->codec->pix_fmt == PIX_FMT_RGBA32 )
1074 {
1075 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1076 register int n;
1077
1078 for ( i = 0; i < height; i ++ )
1079 {
1080 n = ( width + 7 ) / 8;
1081 p = output->data[ 0 ] + i * output->linesize[ 0 ];
1082
1083 #ifndef __DARWIN__
1084 p += 3;
1085 #endif
1086
1087 switch( width % 8 )
1088 {
1089 case 0: do { *p = *alpha++; p += 4;
1090 case 7: *p = *alpha++; p += 4;
1091 case 6: *p = *alpha++; p += 4;
1092 case 5: *p = *alpha++; p += 4;
1093 case 4: *p = *alpha++; p += 4;
1094 case 3: *p = *alpha++; p += 4;
1095 case 2: *p = *alpha++; p += 4;
1096 case 1: *p = *alpha++; p += 4;
1097 }
1098 while( --n );
1099 }
1100 }
1101 }
1102 }
1103
1104 if (oc->oformat->flags & AVFMT_RAWPICTURE)
1105 {
1106 // raw video case. The API will change slightly in the near future for that
1107 AVPacket pkt;
1108 av_init_packet(&pkt);
1109
1110 pkt.flags |= PKT_FLAG_KEY;
1111 pkt.stream_index= video_st->index;
1112 pkt.data= (uint8_t *)output;
1113 pkt.size= sizeof(AVPicture);
1114
1115 ret = av_write_frame(oc, &pkt);
1116 video_pts += c->frame_size;
1117 }
1118 else
1119 {
1120 // Set the quality
1121 output->quality = video_st->quality;
1122
1123 // Set frame interlace hints
1124 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1125 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1126
1127 // Encode the image
1128 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1129
1130 // If zero size, it means the image was buffered
1131 if (out_size > 0)
1132 {
1133 AVPacket pkt;
1134 av_init_packet( &pkt );
1135
1136 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1137 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1138 if( c->coded_frame && c->coded_frame->key_frame )
1139 pkt.flags |= PKT_FLAG_KEY;
1140 pkt.stream_index= video_st->index;
1141 pkt.data= video_outbuf;
1142 pkt.size= out_size;
1143
1144 // write the compressed frame in the media file
1145 ret = av_interleaved_write_frame(oc, &pkt);
1146 video_pts += c->frame_size;
1147
1148 // Dual pass logging
1149 if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out)
1150 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1151 }
1152 else
1153 {
1154 fprintf( stderr, "%s: error with video encode\n", __FILE__ );
1155 }
1156 }
1157 frame_count++;
1158 mlt_frame_close( frame );
1159 }
1160 else
1161 {
1162 break;
1163 }
1164 }
1165 }
1166
1167 if ( real_time_output == 1 && frames % 12 == 0 )
1168 {
1169 long passed = time_difference( &ante );
1170 if ( fifo != NULL )
1171 {
1172 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1173 passed -= pending;
1174 }
1175 if ( passed < total_time )
1176 {
1177 long total = ( total_time - passed );
1178 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1179 nanosleep( &t, NULL );
1180 }
1181 }
1182 }
1183
1184 #ifdef FLUSH
1185 if ( ! real_time_output )
1186 {
1187 // Flush audio fifo
1188 if ( audio_st && audio_st->codec->frame_size > 1 ) for (;;)
1189 {
1190 AVCodecContext *c = audio_st->codec;
1191 AVPacket pkt;
1192 av_init_packet( &pkt );
1193 pkt.size = 0;
1194
1195 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1196 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1197 {
1198 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1199 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1200 }
1201 if ( pkt.size <= 0 )
1202 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1203 if ( pkt.size <= 0 )
1204 break;
1205
1206 // Write the compressed frame in the media file
1207 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1208 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1209 pkt.flags |= PKT_FLAG_KEY;
1210 pkt.stream_index = audio_st->index;
1211 pkt.data = audio_outbuf;
1212 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1213 {
1214 fprintf( stderr, "%s: Error while writing flushed audio frame\n", __FILE__ );
1215 break;
1216 }
1217 }
1218
1219 // Flush video
1220 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1221 {
1222 AVCodecContext *c = video_st->codec;
1223 AVPacket pkt;
1224 av_init_packet( &pkt );
1225
1226 // Encode the image
1227 pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1228 if ( pkt.size <= 0 )
1229 break;
1230
1231 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1232 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1233 if( c->coded_frame && c->coded_frame->key_frame )
1234 pkt.flags |= PKT_FLAG_KEY;
1235 pkt.stream_index = video_st->index;
1236 pkt.data = video_outbuf;
1237
1238 // write the compressed frame in the media file
1239 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1240 {
1241 fprintf( stderr, "%s: Error while writing flushed video frame\n". __FILE__ );
1242 break;
1243 }
1244 }
1245 }
1246 #endif
1247
1248 // close each codec
1249 if (video_st)
1250 close_video(oc, video_st);
1251 if (audio_st)
1252 close_audio(oc, audio_st);
1253
1254 // Write the trailer, if any
1255 av_write_trailer(oc);
1256
1257 // Free the streams
1258 for(i = 0; i < oc->nb_streams; i++)
1259 av_freep(&oc->streams[i]);
1260
1261 // Close the output file
1262 if (!(fmt->flags & AVFMT_NOFILE))
1263 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1264 url_fclose(oc->pb);
1265 #else
1266 url_fclose(&oc->pb);
1267 #endif
1268
1269 // Clean up input and output frames
1270 if ( output )
1271 av_free( output->data[0] );
1272 av_free( output );
1273 av_free( input->data[0] );
1274 av_free( input );
1275 av_free( video_outbuf );
1276 av_free( buffer );
1277
1278 // Free the stream
1279 av_free(oc);
1280
1281 // Just in case we terminated on pause
1282 mlt_properties_set_int( properties, "running", 0 );
1283
1284 mlt_consumer_stopped( this );
1285
1286 if ( mlt_properties_get_int( properties, "pass" ) == 2 )
1287 {
1288 // Remove the dual pass log file
1289 if ( mlt_properties_get( properties, "_logfilename" ) )
1290 remove( mlt_properties_get( properties, "_logfilename" ) );
1291
1292 // Remove the x264 dual pass logs
1293 char *cwd = getcwd( NULL, 0 );
1294 char *file = "x264_2pass.log";
1295 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1296 sprintf( full, "%s/%s", cwd, file );
1297 remove( full );
1298 free( full );
1299 file = "x264_2pass.log.temp";
1300 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1301 sprintf( full, "%s/%s", cwd, file );
1302 remove( full );
1303 free( full );
1304 free( cwd );
1305 remove( "x264_2pass.log.temp" );
1306 }
1307
1308 return NULL;
1309 }
1310
1311 /** Close the consumer.
1312 */
1313
1314 static void consumer_close( mlt_consumer this )
1315 {
1316 // Stop the consumer
1317 mlt_consumer_stop( this );
1318
1319 // Close the parent
1320 mlt_consumer_close( this );
1321
1322 // Free the memory
1323 free( this );
1324 }
my melted branch