projects / melted / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
consumer_avformat.c
[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 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 // Local header files
22 #include "consumer_avformat.h"
23
24 // mlt Header files
25 #include <framework/mlt_frame.h>
26
27 // System header files
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <limits.h>
32 #include <pthread.h>
33 #include <sys/time.h>
34 #include <math.h>
35
36 // avformat header files
37 #include <avformat.h>
38
39 //
40 // This structure should be extended and made globally available in mlt
41 //
42
43 typedef struct
44 {
45 int16_t *buffer;
46 int size;
47 int used;
48 double time;
49 int frequency;
50 int channels;
51 }
52 *sample_fifo, sample_fifo_s;
53
54 sample_fifo sample_fifo_init( int frequency, int channels )
55 {
56 sample_fifo this = calloc( 1, sizeof( sample_fifo_s ) );
57 this->frequency = frequency;
58 this->channels = channels;
59 return this;
60 }
61
62 // sample_fifo_clear and check are temporarily aborted (not working as intended)
63
64 void sample_fifo_clear( sample_fifo this, double time )
65 {
66 int words = ( float )( time - this->time ) * this->frequency * this->channels;
67 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )this->time * 100 ) && this->used > words && words > 0 )
68 {
69 memmove( this->buffer, &this->buffer[ words ], ( this->used - words ) * sizeof( int16_t ) );
70 this->used -= words;
71 this->time = time;
72 }
73 else if ( ( int )( ( float )time * 100 ) != ( int )( ( float )this->time * 100 ) )
74 {
75 this->used = 0;
76 this->time = time;
77 }
78 }
79
80 void sample_fifo_check( sample_fifo this, double time )
81 {
82 if ( this->used == 0 )
83 {
84 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )this->time * 100 ) )
85 this->time = time;
86 }
87 }
88
89 void sample_fifo_append( sample_fifo this, int16_t *samples, int count )
90 {
91 if ( ( this->size - this->used ) < count )
92 {
93 this->size += count * 5;
94 this->buffer = realloc( this->buffer, this->size * sizeof( int16_t ) );
95 }
96
97 memcpy( &this->buffer[ this->used ], samples, count * sizeof( int16_t ) );
98 this->used += count;
99 }
100
101 int sample_fifo_used( sample_fifo this )
102 {
103 return this->used;
104 }
105
106 int sample_fifo_fetch( sample_fifo this, int16_t *samples, int count )
107 {
108 if ( count > this->used )
109 count = this->used;
110
111 memcpy( samples, this->buffer, count * sizeof( int16_t ) );
112 this->used -= count;
113 memmove( this->buffer, &this->buffer[ count ], this->used * sizeof( int16_t ) );
114
115 this->time += ( double )count / this->channels / this->frequency;
116
117 return count;
118 }
119
120 void sample_fifo_close( sample_fifo this )
121 {
122 free( this->buffer );
123 free( this );
124 }
125
126 // Forward references.
127 static int consumer_start( mlt_consumer this );
128 static int consumer_stop( mlt_consumer this );
129 static int consumer_is_stopped( mlt_consumer this );
130 static void *consumer_thread( void *arg );
131 static void consumer_close( mlt_consumer this );
132
133 /** Initialise the dv consumer.
134 */
135
136 mlt_consumer consumer_avformat_init( char *arg )
137 {
138 // Allocate the consumer
139 mlt_consumer this = mlt_consumer_new( );
140
141 // If memory allocated and initialises without error
142 if ( this != NULL )
143 {
144 // Get properties from the consumer
145 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
146
147 // Assign close callback
148 this->close = consumer_close;
149
150 // Interpret the argument
151 if ( arg != NULL )
152 mlt_properties_set( properties, "target", arg );
153
154 // sample and frame queue
155 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
156
157 // Set avformat defaults (all lifted from ffmpeg.c)
158 mlt_properties_set_int( properties, "audio_bit_rate", 128000 );
159 mlt_properties_set_int( properties, "video_bit_rate", 200 * 1000 );
160 mlt_properties_set_int( properties, "video_bit_rate_tolerance", 4000 * 1000 );
161 mlt_properties_set_int( properties, "gop_size", 12 );
162 mlt_properties_set_int( properties, "b_frames", 0 );
163 mlt_properties_set_int( properties, "mb_decision", FF_MB_DECISION_SIMPLE );
164 mlt_properties_set_double( properties, "qscale", 0 );
165 mlt_properties_set_int( properties, "me_method", ME_EPZS );
166 mlt_properties_set_int( properties, "mb_cmp", FF_CMP_SAD );
167 mlt_properties_set_int( properties, "ildct_cmp", FF_CMP_VSAD );
168 mlt_properties_set_int( properties, "sub_cmp", FF_CMP_SAD );
169 mlt_properties_set_int( properties, "cmp", FF_CMP_SAD );
170 mlt_properties_set_int( properties, "pre_cmp", FF_CMP_SAD );
171 mlt_properties_set_int( properties, "pre_me", 0 );
172 mlt_properties_set_double( properties, "lumi_mask", 0 );
173 mlt_properties_set_double( properties, "dark_mask", 0 );
174 mlt_properties_set_double( properties, "scplx_mask", 0 );
175 mlt_properties_set_double( properties, "tcplx_mask", 0 );
176 mlt_properties_set_double( properties, "p_mask", 0 );
177 mlt_properties_set_int( properties, "qns", 0 );
178 mlt_properties_set_int( properties, "video_qmin", 2 );
179 mlt_properties_set_int( properties, "video_qmax", 31 );
180 mlt_properties_set_int( properties, "video_lmin", 2*FF_QP2LAMBDA );
181 mlt_properties_set_int( properties, "video_lmax", 31*FF_QP2LAMBDA );
182 mlt_properties_set_int( properties, "video_mb_qmin", 2 );
183 mlt_properties_set_int( properties, "video_mb_qmax", 31 );
184 mlt_properties_set_int( properties, "video_qdiff", 3 );
185 mlt_properties_set_double( properties, "video_qblur", 0.5 );
186 mlt_properties_set_double( properties, "video_qcomp", 0.5 );
187 mlt_properties_set_int( properties, "video_rc_max_rate", 0 );
188 mlt_properties_set_int( properties, "video_rc_min_rate", 0 );
189 mlt_properties_set_int( properties, "video_rc_buffer_size", 0 );
190 mlt_properties_set_double( properties, "video_rc_buffer_aggressivity", 1.0 );
191 mlt_properties_set_double( properties, "video_rc_initial_cplx", 0 );
192 mlt_properties_set_double( properties, "video_i_qfactor", 1.25 );
193 mlt_properties_set_double( properties, "video_b_qfactor", 1.25 );
194 mlt_properties_set_double( properties, "video_i_qoffset", -0.8 );
195 mlt_properties_set_double( properties, "video_b_qoffset", 0 );
196 mlt_properties_set_int( properties, "video_intra_quant_bias", FF_DEFAULT_QUANT_BIAS );
197 mlt_properties_set_int( properties, "video_inter_quant_bias", FF_DEFAULT_QUANT_BIAS );
198 mlt_properties_set_int( properties, "dct_algo", 0 );
199 mlt_properties_set_int( properties, "idct_algo", 0 );
200 mlt_properties_set_int( properties, "me_threshold", 0 );
201 mlt_properties_set_int( properties, "mb_threshold", 0 );
202 mlt_properties_set_int( properties, "intra_dc_precision", 0 );
203 mlt_properties_set_int( properties, "strict", 0 );
204 mlt_properties_set_int( properties, "error_rate", 0 );
205 mlt_properties_set_int( properties, "noise_reduction", 0 );
206 mlt_properties_set_int( properties, "sc_threshold", 0 );
207 mlt_properties_set_int( properties, "me_range", 0 );
208 mlt_properties_set_int( properties, "coder", 0 );
209 mlt_properties_set_int( properties, "context", 0 );
210 mlt_properties_set_int( properties, "predictor", 0 );
211
212 // Ensure termination at end of the stream
213 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
214
215 // Set up start/stop/terminated callbacks
216 this->start = consumer_start;
217 this->stop = consumer_stop;
218 this->is_stopped = consumer_is_stopped;
219 }
220
221 // Return this
222 return this;
223 }
224
225 /** Start the consumer.
226 */
227
228 static int consumer_start( mlt_consumer this )
229 {
230 // Get the properties
231 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
232
233 // Check that we're not already running
234 if ( !mlt_properties_get_int( properties, "running" ) )
235 {
236 // Allocate a thread
237 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
238
239 // Get the width and height
240 int width = mlt_properties_get_int( properties, "width" );
241 int height = mlt_properties_get_int( properties, "height" );
242
243 // Obtain the size property
244 char *size = mlt_properties_get( properties, "size" );
245
246 // Interpret it
247 if ( size != NULL )
248 {
249 int tw, th;
250 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
251 {
252 width = tw;
253 height = th;
254 }
255 else
256 {
257 fprintf( stderr, "consumer_avformat: Invalid size property %s - ignoring.\n", size );
258 }
259 }
260
261 // Now ensure we honour the multiple of two requested by libavformat
262 mlt_properties_set_int( properties, "width", ( width / 2 ) * 2 );
263 mlt_properties_set_int( properties, "height", ( height / 2 ) * 2 );
264
265 // Assign the thread to properties
266 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
267
268 // Set the running state
269 mlt_properties_set_int( properties, "running", 1 );
270
271 // Create the thread
272 pthread_create( thread, NULL, consumer_thread, this );
273 }
274 return 0;
275 }
276
277 /** Stop the consumer.
278 */
279
280 static int consumer_stop( mlt_consumer this )
281 {
282 // Get the properties
283 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
284
285 // Check that we're running
286 if ( mlt_properties_get_int( properties, "running" ) )
287 {
288 // Get the thread
289 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
290
291 // Stop the thread
292 mlt_properties_set_int( properties, "running", 0 );
293
294 // Wait for termination
295 pthread_join( *thread, NULL );
296 }
297
298 return 0;
299 }
300
301 /** Determine if the consumer is stopped.
302 */
303
304 static int consumer_is_stopped( mlt_consumer this )
305 {
306 // Get the properties
307 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
308 return !mlt_properties_get_int( properties, "running" );
309 }
310
311 /** Add an audio output stream
312 */
313
314 static AVStream *add_audio_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
315 {
316 // Get the properties
317 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
318
319 // Create a new stream
320 AVStream *st = av_new_stream( oc, 1 );
321
322 // If created, then initialise from properties
323 if ( st != NULL )
324 {
325 AVCodecContext *c = st->codec;
326 c->codec_id = codec_id;
327 c->codec_type = CODEC_TYPE_AUDIO;
328
329 // Put sample parameters
330 c->bit_rate = mlt_properties_get_int( properties, "audio_bit_rate" );
331 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
332 c->channels = mlt_properties_get_int( properties, "channels" );
333
334 // Allow the user to override the audio fourcc
335 if ( mlt_properties_get( properties, "afourcc" ) )
336 {
337 char *tail = NULL;
338 char *arg = mlt_properties_get( properties, "afourcc" );
339 int tag = strtol( arg, &tail, 0);
340 if( !tail || *tail )
341 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
342 c->codec_tag = tag;
343 }
344 }
345 else
346 {
347 fprintf( stderr, "Could not allocate a stream for audio\n" );
348 }
349
350 return st;
351 }
352
353 static int open_audio( AVFormatContext *oc, AVStream *st, int audio_outbuf_size )
354 {
355 // We will return the audio input size from here
356 int audio_input_frame_size = 0;
357
358 // Get the context
359 AVCodecContext *c = st->codec;
360
361 // Find the encoder
362 AVCodec *codec = avcodec_find_encoder( c->codec_id );
363
364 // Continue if codec found and we can open it
365 if ( codec != NULL && avcodec_open(c, codec) >= 0 )
366 {
367 // ugly hack for PCM codecs (will be removed ASAP with new PCM
368 // support to compute the input frame size in samples
369 if ( c->frame_size <= 1 )
370 {
371 audio_input_frame_size = audio_outbuf_size / c->channels;
372 switch(st->codec->codec_id)
373 {
374 case CODEC_ID_PCM_S16LE:
375 case CODEC_ID_PCM_S16BE:
376 case CODEC_ID_PCM_U16LE:
377 case CODEC_ID_PCM_U16BE:
378 audio_input_frame_size >>= 1;
379 break;
380 default:
381 break;
382 }
383 }
384 else
385 {
386 audio_input_frame_size = c->frame_size;
387 }
388
389 // Some formats want stream headers to be seperate (hmm)
390 if( !strcmp( oc->oformat->name, "mp4" ) ||
391 !strcmp( oc->oformat->name, "mov" ) ||
392 !strcmp( oc->oformat->name, "3gp" ) )
393 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
394 }
395 else
396 {
397 fprintf( stderr, "Unable to encode audio - disabling audio output.\n" );
398 }
399
400 return audio_input_frame_size;
401 }
402
403 static void close_audio( AVFormatContext *oc, AVStream *st )
404 {
405 avcodec_close( st->codec );
406 }
407
408 /** Add a video output stream
409 */
410
411 static AVStream *add_video_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
412 {
413 // Get the properties
414 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
415
416 // Create a new stream
417 AVStream *st = av_new_stream( oc, 0 );
418
419 if ( st != NULL )
420 {
421 AVCodecContext *c = st->codec;
422 c->codec_id = codec_id;
423 c->codec_type = CODEC_TYPE_VIDEO;
424
425 // put sample parameters
426 c->bit_rate = mlt_properties_get_int( properties, "video_bit_rate" );
427 c->bit_rate_tolerance = mlt_properties_get_int( properties, "video_bit_rate_tolerance" );
428 c->width = mlt_properties_get_int( properties, "width" );
429 c->height = mlt_properties_get_int( properties, "height" );
430 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
431 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
432 c->gop_size = mlt_properties_get_int( properties, "gop_size" );
433 c->pix_fmt = PIX_FMT_YUV420P;
434
435 if ( mlt_properties_get_int( properties, "b_frames" ) )
436 {
437 c->max_b_frames = mlt_properties_get_int( properties, "b_frames" );
438 c->b_frame_strategy = 0;
439 c->b_quant_factor = 2.0;
440 }
441
442 c->mb_decision = mlt_properties_get_int( properties, "mb_decision" );
443 c->sample_aspect_ratio = av_d2q( mlt_properties_get_double( properties, "display_ratio" ) * c->height / c->width, 255 );
444 c->mb_cmp = mlt_properties_get_int( properties, "mb_cmp" );
445 c->ildct_cmp = mlt_properties_get_int( properties, "ildct_cmp" );
446 c->me_sub_cmp = mlt_properties_get_int( properties, "sub_cmp" );
447 c->me_cmp = mlt_properties_get_int( properties, "cmp" );
448 c->me_pre_cmp = mlt_properties_get_int( properties, "pre_cmp" );
449 c->pre_me = mlt_properties_get_int( properties, "pre_me" );
450 c->lumi_masking = mlt_properties_get_double( properties, "lumi_mask" );
451 c->dark_masking = mlt_properties_get_double( properties, "dark_mask" );
452 c->spatial_cplx_masking = mlt_properties_get_double( properties, "scplx_mask" );
453 c->temporal_cplx_masking = mlt_properties_get_double( properties, "tcplx_mask" );
454 c->p_masking = mlt_properties_get_double( properties, "p_mask" );
455 c->quantizer_noise_shaping= mlt_properties_get_int( properties, "qns" );
456 c->qmin = mlt_properties_get_int( properties, "video_qmin" );
457 c->qmax = mlt_properties_get_int( properties, "video_qmax" );
458 c->lmin = mlt_properties_get_int( properties, "video_lmin" );
459 c->lmax = mlt_properties_get_int( properties, "video_lmax" );
460 c->mb_qmin = mlt_properties_get_int( properties, "video_mb_qmin" );
461 c->mb_qmax = mlt_properties_get_int( properties, "video_mb_qmax" );
462 c->max_qdiff = mlt_properties_get_int( properties, "video_qdiff" );
463 c->qblur = mlt_properties_get_double( properties, "video_qblur" );
464 c->qcompress = mlt_properties_get_double( properties, "video_qcomp" );
465
466 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
467 {
468 c->flags |= CODEC_FLAG_QSCALE;
469 st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
470 }
471
472 // Allow the user to override the video fourcc
473 if ( mlt_properties_get( properties, "vfourcc" ) )
474 {
475 char *tail = NULL;
476 const char *arg = mlt_properties_get( properties, "vfourcc" );
477 int tag = strtol( arg, &tail, 0);
478 if( !tail || *tail )
479 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
480 c->codec_tag = tag;
481 }
482
483 // Some formats want stream headers to be seperate
484 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
485 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
486
487 c->rc_max_rate = mlt_properties_get_int( properties, "video_rc_max_rate" );
488 c->rc_min_rate = mlt_properties_get_int( properties, "video_rc_min_rate" );
489 c->rc_buffer_size = mlt_properties_get_int( properties, "video_rc_buffer_size" );
490 c->rc_buffer_aggressivity= mlt_properties_get_double( properties, "video_rc_buffer_aggressivity" );
491 c->rc_initial_cplx= mlt_properties_get_double( properties, "video_rc_initial_cplx" );
492 c->i_quant_factor = mlt_properties_get_double( properties, "video_i_qfactor" );
493 c->b_quant_factor = mlt_properties_get_double( properties, "video_b_qfactor" );
494 c->i_quant_offset = mlt_properties_get_double( properties, "video_i_qoffset" );
495 c->b_quant_offset = mlt_properties_get_double( properties, "video_b_qoffset" );
496 c->intra_quant_bias = mlt_properties_get_int( properties, "video_intra_quant_bias" );
497 c->inter_quant_bias = mlt_properties_get_int( properties, "video_inter_quant_bias" );
498 c->dct_algo = mlt_properties_get_int( properties, "dct_algo" );
499 c->idct_algo = mlt_properties_get_int( properties, "idct_algo" );
500 c->me_threshold= mlt_properties_get_int( properties, "me_threshold" );
501 c->mb_threshold= mlt_properties_get_int( properties, "mb_threshold" );
502 c->intra_dc_precision= mlt_properties_get_int( properties, "intra_dc_precision" );
503 c->strict_std_compliance = mlt_properties_get_int( properties, "strict" );
504 c->error_rate = mlt_properties_get_int( properties, "error_rate" );
505 c->noise_reduction= mlt_properties_get_int( properties, "noise_reduction" );
506 c->scenechange_threshold= mlt_properties_get_int( properties, "sc_threshold" );
507 c->me_range = mlt_properties_get_int( properties, "me_range" );
508 c->coder_type= mlt_properties_get_int( properties, "coder" );
509 c->context_model= mlt_properties_get_int( properties, "context" );
510 c->prediction_method= mlt_properties_get_int( properties, "predictor" );
511 c->me_method = mlt_properties_get_int( properties, "me_method" );
512 }
513 else
514 {
515 fprintf( stderr, "Could not allocate a stream for video\n" );
516 }
517
518 return st;
519 }
520
521 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
522 {
523 // Allocate a frame
524 AVFrame *picture = avcodec_alloc_frame();
525
526 // Determine size of the
527 int size = avpicture_get_size(pix_fmt, width, height);
528
529 // Allocate the picture buf
530 uint8_t *picture_buf = av_malloc(size);
531
532 // If we have both, then fill the image
533 if ( picture != NULL && picture_buf != NULL )
534 {
535 // Fill the frame with the allocated buffer
536 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
537 }
538 else
539 {
540 // Something failed - clean up what we can
541 av_free( picture );
542 av_free( picture_buf );
543 picture = NULL;
544 }
545
546 return picture;
547 }
548
549 static int open_video(AVFormatContext *oc, AVStream *st)
550 {
551 // Get the codec
552 AVCodecContext *video_enc = st->codec;
553
554 // find the video encoder
555 AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
556
557 if( codec && codec->pix_fmts )
558 {
559 const enum PixelFormat *p = codec->pix_fmts;
560 for( ; *p!=-1; p++ )
561 {
562 if( *p == video_enc->pix_fmt )
563 break;
564 }
565 if( *p == -1 )
566 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
567 }
568
569 // Open the codec safely
570 return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
571 }
572
573 void close_video(AVFormatContext *oc, AVStream *st)
574 {
575 avcodec_close(st->codec);
576 }
577
578 static inline long time_difference( struct timeval *time1 )
579 {
580 struct timeval time2;
581 gettimeofday( &time2, NULL );
582 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
583 }
584
585 /** The main thread - the argument is simply the consumer.
586 */
587
588 static void *consumer_thread( void *arg )
589 {
590 // Map the argument to the object
591 mlt_consumer this = arg;
592
593 // Get the properties
594 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
595
596 // Get the terminate on pause property
597 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
598 int terminated = 0;
599
600 // Determine if feed is slow (for realtime stuff)
601 int real_time_output = mlt_properties_get_int( properties, "real_time" );
602
603 // Time structures
604 struct timeval ante;
605
606 // Get the frame rate
607 int fps = mlt_properties_get_double( properties, "fps" );
608
609 // Get width and height
610 int width = mlt_properties_get_int( properties, "width" );
611 int height = mlt_properties_get_int( properties, "height" );
612 int img_width = width;
613 int img_height = height;
614
615 // Get default audio properties
616 mlt_audio_format aud_fmt = mlt_audio_pcm;
617 int channels = mlt_properties_get_int( properties, "channels" );
618 int frequency = mlt_properties_get_int( properties, "frequency" );
619 int16_t *pcm = NULL;
620 int samples = 0;
621
622 // AVFormat audio buffer and frame size
623 int audio_outbuf_size = 10000;
624 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
625 int audio_input_frame_size = 0;
626
627 // AVFormat video buffer and frame count
628 int frame_count = 0;
629 int video_outbuf_size = ( 1024 * 1024 );
630 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
631
632 // Used for the frame properties
633 mlt_frame frame = NULL;
634 mlt_properties frame_properties = NULL;
635
636 // Get the queues
637 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
638 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
639
640 // Need two av pictures for converting
641 AVFrame *output = NULL;
642 AVFrame *input = alloc_picture( PIX_FMT_YUV422, width, height );
643
644 // For receiving images from an mlt_frame
645 uint8_t *image;
646 mlt_image_format img_fmt = mlt_image_yuv422;
647
648 // For receiving audio samples back from the fifo
649 int16_t *buffer = av_malloc( 48000 * 2 );
650 int count = 0;
651
652 // Allocate the context
653 AVFormatContext *oc = av_alloc_format_context( );
654
655 // Streams
656 AVStream *audio_st = NULL;
657 AVStream *video_st = NULL;
658
659 // Time stamps
660 double audio_pts = 0;
661 double video_pts = 0;
662
663 // Loop variable
664 int i;
665
666 // Frames despatched
667 long int frames = 0;
668 long int total_time = 0;
669
670 // Determine the format
671 AVOutputFormat *fmt = NULL;
672 char *filename = mlt_properties_get( properties, "target" );
673 char *format = mlt_properties_get( properties, "format" );
674 char *vcodec = mlt_properties_get( properties, "vcodec" );
675 char *acodec = mlt_properties_get( properties, "acodec" );
676
677 // Used to store and override codec ids
678 int audio_codec_id;
679 int video_codec_id;
680
681 // Check for user selected format first
682 if ( format != NULL )
683 fmt = guess_format( format, NULL, NULL );
684
685 // Otherwise check on the filename
686 if ( fmt == NULL && filename != NULL )
687 fmt = guess_format( NULL, filename, NULL );
688
689 // Otherwise default to mpeg
690 if ( fmt == NULL )
691 fmt = guess_format( "mpeg", NULL, NULL );
692
693 // We need a filename - default to stdout?
694 if ( filename == NULL || !strcmp( filename, "" ) )
695 filename = "pipe:";
696
697 // Get the codec ids selected
698 audio_codec_id = fmt->audio_codec;
699 video_codec_id = fmt->video_codec;
700
701 // Check for audio codec overides
702 if ( acodec != NULL )
703 {
704 AVCodec *p = first_avcodec;
705 while( p != NULL )
706 {
707 if ( !strcmp( p->name, acodec ) && p->type == CODEC_TYPE_AUDIO )
708 break;
709 p = p->next;
710 }
711 if ( p != NULL )
712 audio_codec_id = p->id;
713 else
714 fprintf( stderr, "consumer_avcodec: audio codec %s unrecognised - ignoring\n", acodec );
715 }
716
717 // Check for video codec overides
718 if ( vcodec != NULL )
719 {
720 AVCodec *p = first_avcodec;
721 while( p != NULL )
722 {
723 if ( !strcmp( p->name, vcodec ) && p->type == CODEC_TYPE_VIDEO )
724 break;
725 p = p->next;
726 }
727 if ( p != NULL )
728 video_codec_id = p->id;
729 else
730 fprintf( stderr, "consumer_avcodec: video codec %s unrecognised - ignoring\n", vcodec );
731 }
732
733 // Update the output context
734 oc->oformat = fmt;
735 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
736
737 // Add audio and video streams
738 if ( fmt->video_codec != CODEC_ID_NONE )
739 video_st = add_video_stream( this, oc, video_codec_id );
740 if ( fmt->audio_codec != CODEC_ID_NONE )
741 audio_st = add_audio_stream( this, oc, audio_codec_id );
742
743 // Set the parameters (even though we have none...)
744 if ( av_set_parameters(oc, NULL) >= 0 )
745 {
746 if ( video_st && !open_video( oc, video_st ) )
747 video_st = NULL;
748 if ( audio_st )
749 audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
750
751 // Open the output file, if needed
752 if ( !( fmt->flags & AVFMT_NOFILE ) )
753 {
754 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0)
755 {
756 fprintf(stderr, "Could not open '%s'\n", filename);
757 mlt_properties_set_int( properties, "running", 0 );
758 }
759 }
760
761 // Write the stream header, if any
762 if ( mlt_properties_get_int( properties, "running" ) )
763 av_write_header( oc );
764 }
765 else
766 {
767 fprintf(stderr, "Invalid output format parameters\n");
768 mlt_properties_set_int( properties, "running", 0 );
769 }
770
771 // Allocate picture
772 if ( video_st )
773 output = alloc_picture( video_st->codec->pix_fmt, width, height );
774
775 // Last check - need at least one stream
776 if ( audio_st == NULL && video_st == NULL )
777 mlt_properties_set_int( properties, "running", 0 );
778
779 // Get the starting time (can ignore the times above)
780 gettimeofday( &ante, NULL );
781
782 // Loop while running
783 while( mlt_properties_get_int( properties, "running" ) && !terminated )
784 {
785 // Get the frame
786 frame = mlt_consumer_rt_frame( this );
787
788 // Check that we have a frame to work with
789 if ( frame != NULL )
790 {
791 // Increment frames despatched
792 frames ++;
793
794 // Default audio args
795 frame_properties = MLT_FRAME_PROPERTIES( frame );
796
797 // Check for the terminated condition
798 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
799
800 // Get audio and append to the fifo
801 if ( !terminated && audio_st )
802 {
803 samples = mlt_sample_calculator( fps, frequency, count );
804 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
805
806 // Create the fifo if we don't have one
807 if ( fifo == NULL )
808 {
809 fifo = sample_fifo_init( frequency, channels );
810 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
811 }
812
813 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
814 memset( pcm, 0, samples * channels * 2 );
815
816 // Append the samples
817 sample_fifo_append( fifo, pcm, samples * channels );
818 total_time += ( samples * 1000000 ) / frequency;
819 }
820
821 // Encode the image
822 if ( !terminated && video_st )
823 mlt_deque_push_back( queue, frame );
824 else
825 mlt_frame_close( frame );
826 }
827
828 // While we have stuff to process, process...
829 while ( 1 )
830 {
831 if (audio_st)
832 audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
833 else
834 audio_pts = 0.0;
835
836 if (video_st)
837 video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
838 else
839 video_pts = 0.0;
840
841 // Write interleaved audio and video frames
842 if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
843 {
844 if ( channels * audio_input_frame_size < sample_fifo_used( fifo ) )
845 {
846 AVCodecContext *c;
847 AVPacket pkt;
848 av_init_packet( &pkt );
849
850 c = audio_st->codec;
851
852 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
853
854 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
855 // Write the compressed frame in the media file
856 if ( c->coded_frame )
857 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
858 pkt.flags |= PKT_FLAG_KEY;
859 pkt.stream_index= audio_st->index;
860 pkt.data= audio_outbuf;
861
862 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
863 fprintf(stderr, "Error while writing audio frame\n");
864
865 audio_pts += c->frame_size;
866 }
867 else
868 {
869 break;
870 }
871 }
872 else if ( video_st )
873 {
874 if ( mlt_deque_count( queue ) )
875 {
876 int out_size, ret;
877 AVCodecContext *c;
878
879 frame = mlt_deque_pop_front( queue );
880 frame_properties = MLT_FRAME_PROPERTIES( frame );
881
882 c = video_st->codec;
883
884 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
885 {
886 int i = 0;
887 int j = 0;
888 uint8_t *p;
889 uint8_t *q;
890
891 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
892
893 // This will cause some fx to go awry....
894 if ( mlt_properties_get_int( properties, "transcode" ) )
895 {
896 mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "normalised_width", img_height * 4.0 / 3.0 );
897 mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "normalised_height", img_height );
898 }
899
900 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
901
902 q = image;
903
904 for ( i = 0; i < height; i ++ )
905 {
906 p = input->data[ 0 ] + i * input->linesize[ 0 ];
907 j = width;
908 while( j -- )
909 {
910 *p ++ = *q ++;
911 *p ++ = *q ++;
912 }
913 }
914
915 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUV422, width, height );
916 }
917
918 if (oc->oformat->flags & AVFMT_RAWPICTURE)
919 {
920 // raw video case. The API will change slightly in the near future for that
921 AVPacket pkt;
922 av_init_packet(&pkt);
923
924 pkt.flags |= PKT_FLAG_KEY;
925 pkt.stream_index= video_st->index;
926 pkt.data= (uint8_t *)output;
927 pkt.size= sizeof(AVPicture);
928
929 ret = av_write_frame(oc, &pkt);
930 video_pts += c->frame_size;
931 }
932 else
933 {
934 // Set the quality
935 output->quality = video_st->quality;
936
937 // Encode the image
938 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
939
940 // If zero size, it means the image was buffered
941 if (out_size != 0)
942 {
943 AVPacket pkt;
944 av_init_packet( &pkt );
945
946 if ( c->coded_frame )
947 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
948 if( c->coded_frame && c->coded_frame->key_frame )
949 pkt.flags |= PKT_FLAG_KEY;
950 pkt.stream_index= video_st->index;
951 pkt.data= video_outbuf;
952 pkt.size= out_size;
953
954 // write the compressed frame in the media file
955 ret = av_interleaved_write_frame(oc, &pkt);
956 video_pts += c->frame_size;
957 }
958 }
959 frame_count++;
960 mlt_frame_close( frame );
961 }
962 else
963 {
964 break;
965 }
966 }
967 }
968
969 if ( real_time_output && frames % 12 == 0 )
970 {
971 long passed = time_difference( &ante );
972 if ( fifo != NULL )
973 {
974 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
975 passed -= pending;
976 }
977 if ( passed < total_time )
978 {
979 long total = ( total_time - passed );
980 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
981 nanosleep( &t, NULL );
982 }
983 }
984 }
985
986 // close each codec
987 if (video_st)
988 close_video(oc, video_st);
989 if (audio_st)
990 close_audio(oc, audio_st);
991
992 // Write the trailer, if any
993 av_write_trailer(oc);
994
995 // Free the streams
996 for(i = 0; i < oc->nb_streams; i++)
997 av_freep(&oc->streams[i]);
998
999 // Close the output file
1000 if (!(fmt->flags & AVFMT_NOFILE))
1001 url_fclose(&oc->pb);
1002
1003 // Clean up input and output frames
1004 if ( output )
1005 av_free( output->data[0] );
1006 av_free( output );
1007 av_free( input->data[0] );
1008 av_free( input );
1009 av_free( video_outbuf );
1010 av_free( buffer );
1011
1012 // Free the stream
1013 av_free(oc);
1014
1015 // Just in case we terminated on pause
1016 mlt_properties_set_int( properties, "running", 0 );
1017
1018 mlt_consumer_stopped( this );
1019
1020 return NULL;
1021 }
1022
1023 /** Close the consumer.
1024 */
1025
1026 static void consumer_close( mlt_consumer this )
1027 {
1028 // Stop the consumer
1029 mlt_consumer_stop( this );
1030
1031 // Close the parent
1032 mlt_consumer_close( this );
1033
1034 // Free the memory
1035 free( this );
1036 }
my melted branch