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added support for ilme=1 and ildct=1 properties to consumer_avformat
[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 library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library 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 GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, 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 #ifdef SWSCALE
39 #include <swscale.h>
40 #endif
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( char *arg )
140 {
141 // Allocate the consumer
142 mlt_consumer this = mlt_consumer_new( );
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 // Set avformat defaults (all lifted from ffmpeg.c)
161 mlt_properties_set_int( properties, "audio_bit_rate", 128000 );
162 mlt_properties_set_int( properties, "video_bit_rate", 200 * 1000 );
163 mlt_properties_set_int( properties, "video_bit_rate_tolerance", 4000 * 1000 );
164 mlt_properties_set_int( properties, "gop_size", 12 );
165 mlt_properties_set_int( properties, "b_frames", 0 );
166 mlt_properties_set_int( properties, "mb_decision", FF_MB_DECISION_SIMPLE );
167 mlt_properties_set_double( properties, "qscale", 1 );
168 mlt_properties_set_int( properties, "me_method", ME_EPZS );
169 mlt_properties_set_int( properties, "mb_cmp", FF_CMP_SAD );
170 mlt_properties_set_int( properties, "ildct_cmp", FF_CMP_VSAD );
171 mlt_properties_set_int( properties, "sub_cmp", FF_CMP_SAD );
172 mlt_properties_set_int( properties, "cmp", FF_CMP_SAD );
173 mlt_properties_set_int( properties, "pre_cmp", FF_CMP_SAD );
174 mlt_properties_set_int( properties, "pre_me", 0 );
175 mlt_properties_set_double( properties, "lumi_mask", 0 );
176 mlt_properties_set_double( properties, "dark_mask", 0 );
177 mlt_properties_set_double( properties, "scplx_mask", 0 );
178 mlt_properties_set_double( properties, "tcplx_mask", 0 );
179 mlt_properties_set_double( properties, "p_mask", 0 );
180 mlt_properties_set_int( properties, "qns", 0 );
181 mlt_properties_set_int( properties, "video_qmin", 2 );
182 mlt_properties_set_int( properties, "video_qmax", 31 );
183 mlt_properties_set_int( properties, "video_lmin", 2*FF_QP2LAMBDA );
184 mlt_properties_set_int( properties, "video_lmax", 31*FF_QP2LAMBDA );
185 mlt_properties_set_int( properties, "video_mb_qmin", 2 );
186 mlt_properties_set_int( properties, "video_mb_qmax", 31 );
187 mlt_properties_set_int( properties, "video_qdiff", 3 );
188 mlt_properties_set_double( properties, "video_qblur", 0.5 );
189 mlt_properties_set_double( properties, "video_qcomp", 0.5 );
190 mlt_properties_set_int( properties, "video_rc_max_rate", 0 );
191 mlt_properties_set_int( properties, "video_rc_min_rate", 0 );
192 mlt_properties_set_int( properties, "video_rc_buffer_size", 0 );
193 mlt_properties_set_double( properties, "video_rc_buffer_aggressivity", 1.0 );
194 mlt_properties_set_double( properties, "video_rc_initial_cplx", 0 );
195 mlt_properties_set_double( properties, "video_i_qfactor", 1.25 );
196 mlt_properties_set_double( properties, "video_b_qfactor", 1.25 );
197 mlt_properties_set_double( properties, "video_i_qoffset", -0.8 );
198 mlt_properties_set_double( properties, "video_b_qoffset", 0 );
199 mlt_properties_set_int( properties, "video_intra_quant_bias", FF_DEFAULT_QUANT_BIAS );
200 mlt_properties_set_int( properties, "video_inter_quant_bias", FF_DEFAULT_QUANT_BIAS );
201 mlt_properties_set_int( properties, "dct_algo", 0 );
202 mlt_properties_set_int( properties, "idct_algo", 0 );
203 mlt_properties_set_int( properties, "me_threshold", 0 );
204 mlt_properties_set_int( properties, "mb_threshold", 0 );
205 mlt_properties_set_int( properties, "intra_dc_precision", 0 );
206 mlt_properties_set_int( properties, "strict", 0 );
207 mlt_properties_set_int( properties, "error_rate", 0 );
208 mlt_properties_set_int( properties, "noise_reduction", 0 );
209 mlt_properties_set_int( properties, "sc_threshold", 0 );
210 mlt_properties_set_int( properties, "me_range", 0 );
211 mlt_properties_set_int( properties, "coder", 0 );
212 mlt_properties_set_int( properties, "context", 0 );
213 mlt_properties_set_int( properties, "predictor", 0 );
214 mlt_properties_set_int( properties, "ildct", 0 );
215 mlt_properties_set_int( properties, "ilme", 0 );
216
217 // Ensure termination at end of the stream
218 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
219
220 // Set up start/stop/terminated callbacks
221 this->start = consumer_start;
222 this->stop = consumer_stop;
223 this->is_stopped = consumer_is_stopped;
224 }
225
226 // Return this
227 return this;
228 }
229
230 /** Start the consumer.
231 */
232
233 static int consumer_start( mlt_consumer this )
234 {
235 // Get the properties
236 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
237
238 // Check that we're not already running
239 if ( !mlt_properties_get_int( properties, "running" ) )
240 {
241 // Allocate a thread
242 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
243
244 // Get the width and height
245 int width = mlt_properties_get_int( properties, "width" );
246 int height = mlt_properties_get_int( properties, "height" );
247
248 // Obtain the size property
249 char *size = mlt_properties_get( properties, "size" );
250
251 // Interpret it
252 if ( size != NULL )
253 {
254 int tw, th;
255 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
256 {
257 width = tw;
258 height = th;
259 }
260 else
261 {
262 fprintf( stderr, "consumer_avformat: Invalid size property %s - ignoring.\n", size );
263 }
264 }
265
266 // Now ensure we honour the multiple of two requested by libavformat
267 mlt_properties_set_int( properties, "width", ( width / 2 ) * 2 );
268 mlt_properties_set_int( properties, "height", ( height / 2 ) * 2 );
269
270 // Assign the thread to properties
271 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
272
273 // Set the running state
274 mlt_properties_set_int( properties, "running", 1 );
275
276 // Create the thread
277 pthread_create( thread, NULL, consumer_thread, this );
278 }
279 return 0;
280 }
281
282 /** Stop the consumer.
283 */
284
285 static int consumer_stop( mlt_consumer this )
286 {
287 // Get the properties
288 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
289
290 // Check that we're running
291 if ( mlt_properties_get_int( properties, "running" ) )
292 {
293 // Get the thread
294 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
295
296 // Stop the thread
297 mlt_properties_set_int( properties, "running", 0 );
298
299 // Wait for termination
300 pthread_join( *thread, NULL );
301 }
302
303 return 0;
304 }
305
306 /** Determine if the consumer is stopped.
307 */
308
309 static int consumer_is_stopped( mlt_consumer this )
310 {
311 // Get the properties
312 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
313 return !mlt_properties_get_int( properties, "running" );
314 }
315
316 /** Add an audio output stream
317 */
318
319 static AVStream *add_audio_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
320 {
321 // Get the properties
322 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
323
324 // Create a new stream
325 AVStream *st = av_new_stream( oc, 1 );
326
327 // If created, then initialise from properties
328 if ( st != NULL )
329 {
330 AVCodecContext *c = st->codec;
331 c->codec_id = codec_id;
332 c->codec_type = CODEC_TYPE_AUDIO;
333
334 // Put sample parameters
335 c->bit_rate = mlt_properties_get_int( properties, "audio_bit_rate" );
336 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
337 c->channels = mlt_properties_get_int( properties, "channels" );
338
339 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
340 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
341
342 // Allow the user to override the audio fourcc
343 if ( mlt_properties_get( properties, "afourcc" ) )
344 {
345 char *tail = NULL;
346 char *arg = mlt_properties_get( properties, "afourcc" );
347 int tag = strtol( arg, &tail, 0);
348 if( !tail || *tail )
349 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
350 c->codec_tag = tag;
351 }
352 }
353 else
354 {
355 fprintf( stderr, "Could not allocate a stream for audio\n" );
356 }
357
358 return st;
359 }
360
361 static int open_audio( AVFormatContext *oc, AVStream *st, int audio_outbuf_size )
362 {
363 // We will return the audio input size from here
364 int audio_input_frame_size = 0;
365
366 // Get the context
367 AVCodecContext *c = st->codec;
368
369 // Find the encoder
370 AVCodec *codec = avcodec_find_encoder( c->codec_id );
371
372 // Continue if codec found and we can open it
373 if ( codec != NULL && avcodec_open(c, codec) >= 0 )
374 {
375 // ugly hack for PCM codecs (will be removed ASAP with new PCM
376 // support to compute the input frame size in samples
377 if ( c->frame_size <= 1 )
378 {
379 audio_input_frame_size = audio_outbuf_size / c->channels;
380 switch(st->codec->codec_id)
381 {
382 case CODEC_ID_PCM_S16LE:
383 case CODEC_ID_PCM_S16BE:
384 case CODEC_ID_PCM_U16LE:
385 case CODEC_ID_PCM_U16BE:
386 audio_input_frame_size >>= 1;
387 break;
388 default:
389 break;
390 }
391 }
392 else
393 {
394 audio_input_frame_size = c->frame_size;
395 }
396
397 // Some formats want stream headers to be seperate (hmm)
398 if( !strcmp( oc->oformat->name, "mp4" ) ||
399 !strcmp( oc->oformat->name, "mov" ) ||
400 !strcmp( oc->oformat->name, "3gp" ) )
401 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
402 }
403 else
404 {
405 fprintf( stderr, "Unable to encode audio - disabling audio output.\n" );
406 }
407
408 return audio_input_frame_size;
409 }
410
411 static void close_audio( AVFormatContext *oc, AVStream *st )
412 {
413 avcodec_close( st->codec );
414 }
415
416 /** Add a video output stream
417 */
418
419 static AVStream *add_video_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
420 {
421 // Get the properties
422 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
423
424 // Create a new stream
425 AVStream *st = av_new_stream( oc, 0 );
426
427 if ( st != NULL )
428 {
429 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
430 double ar = mlt_properties_get_double( properties, "display_ratio" );
431 AVCodecContext *c = st->codec;
432 c->codec_id = codec_id;
433 c->codec_type = CODEC_TYPE_VIDEO;
434
435 // put sample parameters
436 c->bit_rate = mlt_properties_get_int( properties, "video_bit_rate" );
437 c->bit_rate_tolerance = mlt_properties_get_int( properties, "video_bit_rate_tolerance" );
438 c->width = mlt_properties_get_int( properties, "width" );
439 c->height = mlt_properties_get_int( properties, "height" );
440 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
441 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
442 c->gop_size = mlt_properties_get_int( properties, "gop_size" );
443 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
444
445 if ( mlt_properties_get_int( properties, "b_frames" ) )
446 {
447 c->max_b_frames = mlt_properties_get_int( properties, "b_frames" );
448 c->b_frame_strategy = 0;
449 c->b_quant_factor = 2.0;
450 }
451
452 c->mb_decision = mlt_properties_get_int( properties, "mb_decision" );
453 c->sample_aspect_ratio = av_d2q( ar * c->height / c->width , 255);
454 c->mb_cmp = mlt_properties_get_int( properties, "mb_cmp" );
455 c->ildct_cmp = mlt_properties_get_int( properties, "ildct_cmp" );
456 c->me_sub_cmp = mlt_properties_get_int( properties, "sub_cmp" );
457 c->me_cmp = mlt_properties_get_int( properties, "cmp" );
458 c->me_pre_cmp = mlt_properties_get_int( properties, "pre_cmp" );
459 c->pre_me = mlt_properties_get_int( properties, "pre_me" );
460 c->lumi_masking = mlt_properties_get_double( properties, "lumi_mask" );
461 c->dark_masking = mlt_properties_get_double( properties, "dark_mask" );
462 c->spatial_cplx_masking = mlt_properties_get_double( properties, "scplx_mask" );
463 c->temporal_cplx_masking = mlt_properties_get_double( properties, "tcplx_mask" );
464 c->p_masking = mlt_properties_get_double( properties, "p_mask" );
465 c->quantizer_noise_shaping= mlt_properties_get_int( properties, "qns" );
466 c->qmin = mlt_properties_get_int( properties, "video_qmin" );
467 c->qmax = mlt_properties_get_int( properties, "video_qmax" );
468 c->lmin = mlt_properties_get_int( properties, "video_lmin" );
469 c->lmax = mlt_properties_get_int( properties, "video_lmax" );
470 c->mb_qmin = mlt_properties_get_int( properties, "video_mb_qmin" );
471 c->mb_qmax = mlt_properties_get_int( properties, "video_mb_qmax" );
472 c->max_qdiff = mlt_properties_get_int( properties, "video_qdiff" );
473 c->qblur = mlt_properties_get_double( properties, "video_qblur" );
474 c->qcompress = mlt_properties_get_double( properties, "video_qcomp" );
475
476 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
477 {
478 c->flags |= CODEC_FLAG_QSCALE;
479 st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
480 }
481
482 // Allow the user to override the video fourcc
483 if ( mlt_properties_get( properties, "vfourcc" ) )
484 {
485 char *tail = NULL;
486 const char *arg = mlt_properties_get( properties, "vfourcc" );
487 int tag = strtol( arg, &tail, 0);
488 if( !tail || *tail )
489 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
490 c->codec_tag = tag;
491 }
492
493 // Some formats want stream headers to be seperate
494 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
495 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
496
497 c->rc_max_rate = mlt_properties_get_int( properties, "video_rc_max_rate" );
498 c->rc_min_rate = mlt_properties_get_int( properties, "video_rc_min_rate" );
499 c->rc_buffer_size = mlt_properties_get_int( properties, "video_rc_buffer_size" );
500 c->rc_buffer_aggressivity= mlt_properties_get_double( properties, "video_rc_buffer_aggressivity" );
501 c->rc_initial_cplx= mlt_properties_get_double( properties, "video_rc_initial_cplx" );
502 c->i_quant_factor = mlt_properties_get_double( properties, "video_i_qfactor" );
503 c->b_quant_factor = mlt_properties_get_double( properties, "video_b_qfactor" );
504 c->i_quant_offset = mlt_properties_get_double( properties, "video_i_qoffset" );
505 c->b_quant_offset = mlt_properties_get_double( properties, "video_b_qoffset" );
506 c->intra_quant_bias = mlt_properties_get_int( properties, "video_intra_quant_bias" );
507 c->inter_quant_bias = mlt_properties_get_int( properties, "video_inter_quant_bias" );
508 c->dct_algo = mlt_properties_get_int( properties, "dct_algo" );
509 c->idct_algo = mlt_properties_get_int( properties, "idct_algo" );
510 c->me_threshold= mlt_properties_get_int( properties, "me_threshold" );
511 c->mb_threshold= mlt_properties_get_int( properties, "mb_threshold" );
512 c->intra_dc_precision= mlt_properties_get_int( properties, "intra_dc_precision" );
513 c->strict_std_compliance = mlt_properties_get_int( properties, "strict" );
514 c->error_rate = mlt_properties_get_int( properties, "error_rate" );
515 c->noise_reduction= mlt_properties_get_int( properties, "noise_reduction" );
516 c->scenechange_threshold= mlt_properties_get_int( properties, "sc_threshold" );
517 c->me_range = mlt_properties_get_int( properties, "me_range" );
518 c->coder_type= mlt_properties_get_int( properties, "coder" );
519 c->context_model= mlt_properties_get_int( properties, "context" );
520 c->prediction_method= mlt_properties_get_int( properties, "predictor" );
521 c->me_method = mlt_properties_get_int( properties, "me_method" );
522 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
523 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
524 {
525 if ( mlt_properties_get_int( properties, "ildct" ) )
526 c->flags |= CODEC_FLAG_INTERLACED_DCT;
527 if ( mlt_properties_get_int( properties, "ilme" ) )
528 c->flags |= CODEC_FLAG_INTERLACED_ME;
529 }
530 }
531 else
532 {
533 fprintf( stderr, "Could not allocate a stream for video\n" );
534 }
535
536 return st;
537 }
538
539 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
540 {
541 // Allocate a frame
542 AVFrame *picture = avcodec_alloc_frame();
543
544 // Determine size of the
545 int size = avpicture_get_size(pix_fmt, width, height);
546
547 // Allocate the picture buf
548 uint8_t *picture_buf = av_malloc(size);
549
550 // If we have both, then fill the image
551 if ( picture != NULL && picture_buf != NULL )
552 {
553 // Fill the frame with the allocated buffer
554 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
555 }
556 else
557 {
558 // Something failed - clean up what we can
559 av_free( picture );
560 av_free( picture_buf );
561 picture = NULL;
562 }
563
564 return picture;
565 }
566
567 static int open_video(AVFormatContext *oc, AVStream *st)
568 {
569 // Get the codec
570 AVCodecContext *video_enc = st->codec;
571
572 // find the video encoder
573 AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
574
575 if( codec && codec->pix_fmts )
576 {
577 const enum PixelFormat *p = codec->pix_fmts;
578 for( ; *p!=-1; p++ )
579 {
580 if( *p == video_enc->pix_fmt )
581 break;
582 }
583 if( *p == -1 )
584 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
585 }
586
587 // Open the codec safely
588 return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
589 }
590
591 void close_video(AVFormatContext *oc, AVStream *st)
592 {
593 avcodec_close(st->codec);
594 }
595
596 static inline long time_difference( struct timeval *time1 )
597 {
598 struct timeval time2;
599 gettimeofday( &time2, NULL );
600 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
601 }
602
603 /** The main thread - the argument is simply the consumer.
604 */
605
606 static void *consumer_thread( void *arg )
607 {
608 // Map the argument to the object
609 mlt_consumer this = arg;
610
611 // Get the properties
612 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
613
614 // Get the terminate on pause property
615 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
616 int terminated = 0;
617
618 // Determine if feed is slow (for realtime stuff)
619 int real_time_output = mlt_properties_get_int( properties, "real_time" );
620
621 // Time structures
622 struct timeval ante;
623
624 // Get the frame rate
625 int fps = mlt_properties_get_double( properties, "fps" );
626
627 // Get width and height
628 int width = mlt_properties_get_int( properties, "width" );
629 int height = mlt_properties_get_int( properties, "height" );
630 int img_width = width;
631 int img_height = height;
632
633 // Get default audio properties
634 mlt_audio_format aud_fmt = mlt_audio_pcm;
635 int channels = mlt_properties_get_int( properties, "channels" );
636 int frequency = mlt_properties_get_int( properties, "frequency" );
637 int16_t *pcm = NULL;
638 int samples = 0;
639
640 // AVFormat audio buffer and frame size
641 int audio_outbuf_size = 10000;
642 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
643 int audio_input_frame_size = 0;
644
645 // AVFormat video buffer and frame count
646 int frame_count = 0;
647 int video_outbuf_size = ( 1024 * 1024 );
648 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
649
650 // Used for the frame properties
651 mlt_frame frame = NULL;
652 mlt_properties frame_properties = NULL;
653
654 // Get the queues
655 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
656 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
657
658 // Need two av pictures for converting
659 AVFrame *output = NULL;
660 AVFrame *input = alloc_picture( PIX_FMT_YUV422, width, height );
661
662 // For receiving images from an mlt_frame
663 uint8_t *image;
664 mlt_image_format img_fmt = mlt_image_yuv422;
665
666 // For receiving audio samples back from the fifo
667 int16_t *buffer = av_malloc( 48000 * 2 );
668 int count = 0;
669
670 // Allocate the context
671 AVFormatContext *oc = av_alloc_format_context( );
672
673 // Streams
674 AVStream *audio_st = NULL;
675 AVStream *video_st = NULL;
676
677 // Time stamps
678 double audio_pts = 0;
679 double video_pts = 0;
680
681 // Loop variable
682 int i;
683
684 // Frames despatched
685 long int frames = 0;
686 long int total_time = 0;
687
688 // Determine the format
689 AVOutputFormat *fmt = NULL;
690 char *filename = mlt_properties_get( properties, "target" );
691 char *format = mlt_properties_get( properties, "format" );
692 char *vcodec = mlt_properties_get( properties, "vcodec" );
693 char *acodec = mlt_properties_get( properties, "acodec" );
694
695 // Used to store and override codec ids
696 int audio_codec_id;
697 int video_codec_id;
698
699 // Check for user selected format first
700 if ( format != NULL )
701 fmt = guess_format( format, NULL, NULL );
702
703 // Otherwise check on the filename
704 if ( fmt == NULL && filename != NULL )
705 fmt = guess_format( NULL, filename, NULL );
706
707 // Otherwise default to mpeg
708 if ( fmt == NULL )
709 fmt = guess_format( "mpeg", NULL, NULL );
710
711 // We need a filename - default to stdout?
712 if ( filename == NULL || !strcmp( filename, "" ) )
713 filename = "pipe:";
714
715 // Get the codec ids selected
716 audio_codec_id = fmt->audio_codec;
717 video_codec_id = fmt->video_codec;
718
719 // Check for audio codec overides
720 if ( acodec != NULL )
721 {
722 AVCodec *p = first_avcodec;
723 while( p != NULL )
724 {
725 if ( !strcmp( p->name, acodec ) && p->type == CODEC_TYPE_AUDIO )
726 break;
727 p = p->next;
728 }
729 if ( p != NULL )
730 audio_codec_id = p->id;
731 else
732 fprintf( stderr, "consumer_avcodec: audio codec %s unrecognised - ignoring\n", acodec );
733 }
734
735 // Check for video codec overides
736 if ( vcodec != NULL )
737 {
738 AVCodec *p = first_avcodec;
739 while( p != NULL )
740 {
741 if ( !strcmp( p->name, vcodec ) && p->type == CODEC_TYPE_VIDEO )
742 break;
743 p = p->next;
744 }
745 if ( p != NULL )
746 video_codec_id = p->id;
747 else
748 fprintf( stderr, "consumer_avcodec: video codec %s unrecognised - ignoring\n", vcodec );
749 }
750
751 // Update the output context
752
753 // Write metadata
754 char *tmp = NULL;
755 int metavalue;
756
757 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
758 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
759
760 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
761 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
762
763 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
764 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
765
766 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
767 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
768
769 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
770 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
771
772 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
773 if (metavalue != 0) oc->year = metavalue;
774
775 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
776 if (metavalue != 0) oc->track = metavalue;
777
778 oc->oformat = fmt;
779 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
780
781 // Add audio and video streams
782 if ( fmt->video_codec != CODEC_ID_NONE )
783 video_st = add_video_stream( this, oc, video_codec_id );
784 if ( fmt->audio_codec != CODEC_ID_NONE )
785 audio_st = add_audio_stream( this, oc, audio_codec_id );
786
787 // Set the parameters (even though we have none...)
788 if ( av_set_parameters(oc, NULL) >= 0 )
789 {
790 if ( video_st && !open_video( oc, video_st ) )
791 video_st = NULL;
792 if ( audio_st )
793 audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
794
795 // Open the output file, if needed
796 if ( !( fmt->flags & AVFMT_NOFILE ) )
797 {
798 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0)
799 {
800 fprintf(stderr, "Could not open '%s'\n", filename);
801 mlt_properties_set_int( properties, "running", 0 );
802 }
803 }
804
805 // Write the stream header, if any
806 if ( mlt_properties_get_int( properties, "running" ) )
807 av_write_header( oc );
808 }
809 else
810 {
811 fprintf(stderr, "Invalid output format parameters\n");
812 mlt_properties_set_int( properties, "running", 0 );
813 }
814
815 // Allocate picture
816 if ( video_st )
817 output = alloc_picture( video_st->codec->pix_fmt, width, height );
818
819 // Last check - need at least one stream
820 if ( audio_st == NULL && video_st == NULL )
821 mlt_properties_set_int( properties, "running", 0 );
822
823 // Get the starting time (can ignore the times above)
824 gettimeofday( &ante, NULL );
825
826 // Loop while running
827 while( mlt_properties_get_int( properties, "running" ) && !terminated )
828 {
829 // Get the frame
830 frame = mlt_consumer_rt_frame( this );
831
832 // Check that we have a frame to work with
833 if ( frame != NULL )
834 {
835 // Increment frames despatched
836 frames ++;
837
838 // Default audio args
839 frame_properties = MLT_FRAME_PROPERTIES( frame );
840
841 // Check for the terminated condition
842 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
843
844 // Get audio and append to the fifo
845 if ( !terminated && audio_st )
846 {
847 samples = mlt_sample_calculator( fps, frequency, count ++ );
848 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
849
850 // Create the fifo if we don't have one
851 if ( fifo == NULL )
852 {
853 fifo = sample_fifo_init( frequency, channels );
854 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
855 }
856
857 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
858 memset( pcm, 0, samples * channels * 2 );
859
860 // Append the samples
861 sample_fifo_append( fifo, pcm, samples * channels );
862 total_time += ( samples * 1000000 ) / frequency;
863 }
864
865 // Encode the image
866 if ( !terminated && video_st )
867 mlt_deque_push_back( queue, frame );
868 else
869 mlt_frame_close( frame );
870 }
871
872 // While we have stuff to process, process...
873 while ( 1 )
874 {
875 if (audio_st)
876 audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
877 else
878 audio_pts = 0.0;
879
880 if (video_st)
881 video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
882 else
883 video_pts = 0.0;
884
885 // Write interleaved audio and video frames
886 if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
887 {
888 if ( channels * audio_input_frame_size < sample_fifo_used( fifo ) )
889 {
890 AVCodecContext *c;
891 AVPacket pkt;
892 av_init_packet( &pkt );
893
894 c = audio_st->codec;
895
896 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
897
898 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
899 // Write the compressed frame in the media file
900 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
901 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
902 pkt.flags |= PKT_FLAG_KEY;
903 pkt.stream_index= audio_st->index;
904 pkt.data= audio_outbuf;
905
906 if ( pkt.size )
907 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
908 fprintf(stderr, "Error while writing audio frame\n");
909
910 audio_pts += c->frame_size;
911 }
912 else
913 {
914 break;
915 }
916 }
917 else if ( video_st )
918 {
919 if ( mlt_deque_count( queue ) )
920 {
921 int out_size, ret;
922 AVCodecContext *c;
923
924 frame = mlt_deque_pop_front( queue );
925 frame_properties = MLT_FRAME_PROPERTIES( frame );
926
927 c = video_st->codec;
928
929 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
930 {
931 int i = 0;
932 int j = 0;
933 uint8_t *p;
934 uint8_t *q;
935
936 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
937
938 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
939
940 q = image;
941
942 // Convert the mlt frame to an AVPicture
943 for ( i = 0; i < height; i ++ )
944 {
945 p = input->data[ 0 ] + i * input->linesize[ 0 ];
946 j = width;
947 while( j -- )
948 {
949 *p ++ = *q ++;
950 *p ++ = *q ++;
951 }
952 }
953
954 // Do the colour space conversion
955 #ifdef SWSCALE
956 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUV422,
957 width, height, video_st->codec->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL);
958 sws_scale( context, input->data, input->linesize, 0, height,
959 output->data, output->linesize);
960 sws_freeContext( context );
961 #else
962 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUV422, width, height );
963 #endif
964
965 // Apply the alpha if applicable
966 if ( video_st->codec->pix_fmt == PIX_FMT_RGBA32 )
967 {
968 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
969 register int n;
970
971 for ( i = 0; i < height; i ++ )
972 {
973 n = ( width + 7 ) / 8;
974 p = output->data[ 0 ] + i * output->linesize[ 0 ];
975
976 #ifndef __DARWIN__
977 p += 3;
978 #endif
979
980 switch( width % 8 )
981 {
982 case 0: do { *p = *alpha++; p += 4;
983 case 7: *p = *alpha++; p += 4;
984 case 6: *p = *alpha++; p += 4;
985 case 5: *p = *alpha++; p += 4;
986 case 4: *p = *alpha++; p += 4;
987 case 3: *p = *alpha++; p += 4;
988 case 2: *p = *alpha++; p += 4;
989 case 1: *p = *alpha++; p += 4;
990 }
991 while( --n );
992 }
993 }
994 }
995 }
996
997 if (oc->oformat->flags & AVFMT_RAWPICTURE)
998 {
999 // raw video case. The API will change slightly in the near future for that
1000 AVPacket pkt;
1001 av_init_packet(&pkt);
1002
1003 pkt.flags |= PKT_FLAG_KEY;
1004 pkt.stream_index= video_st->index;
1005 pkt.data= (uint8_t *)output;
1006 pkt.size= sizeof(AVPicture);
1007
1008 ret = av_write_frame(oc, &pkt);
1009 video_pts += c->frame_size;
1010 }
1011 else
1012 {
1013 // Set the quality
1014 output->quality = video_st->quality;
1015
1016 // Set frame interlace hints
1017 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1018 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1019
1020 // Encode the image
1021 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1022
1023 // If zero size, it means the image was buffered
1024 if (out_size > 0)
1025 {
1026 AVPacket pkt;
1027 av_init_packet( &pkt );
1028
1029 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1030 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1031 if( c->coded_frame && c->coded_frame->key_frame )
1032 pkt.flags |= PKT_FLAG_KEY;
1033 pkt.stream_index= video_st->index;
1034 pkt.data= video_outbuf;
1035 pkt.size= out_size;
1036
1037 // write the compressed frame in the media file
1038 ret = av_interleaved_write_frame(oc, &pkt);
1039 video_pts += c->frame_size;
1040 }
1041 else
1042 {
1043 fprintf( stderr, "Error with video encode\n" );
1044 }
1045 }
1046 frame_count++;
1047 mlt_frame_close( frame );
1048 }
1049 else
1050 {
1051 break;
1052 }
1053 }
1054 }
1055
1056 if ( real_time_output && frames % 12 == 0 )
1057 {
1058 long passed = time_difference( &ante );
1059 if ( fifo != NULL )
1060 {
1061 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1062 passed -= pending;
1063 }
1064 if ( passed < total_time )
1065 {
1066 long total = ( total_time - passed );
1067 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1068 nanosleep( &t, NULL );
1069 }
1070 }
1071 }
1072
1073 // close each codec
1074 if (video_st)
1075 close_video(oc, video_st);
1076 if (audio_st)
1077 close_audio(oc, audio_st);
1078
1079 // Write the trailer, if any
1080 av_write_trailer(oc);
1081
1082 // Free the streams
1083 for(i = 0; i < oc->nb_streams; i++)
1084 av_freep(&oc->streams[i]);
1085
1086 // Close the output file
1087 if (!(fmt->flags & AVFMT_NOFILE))
1088 url_fclose(&oc->pb);
1089
1090 // Clean up input and output frames
1091 if ( output )
1092 av_free( output->data[0] );
1093 av_free( output );
1094 av_free( input->data[0] );
1095 av_free( input );
1096 av_free( video_outbuf );
1097 av_free( buffer );
1098
1099 // Free the stream
1100 av_free(oc);
1101
1102 // Just in case we terminated on pause
1103 mlt_properties_set_int( properties, "running", 0 );
1104
1105 mlt_consumer_stopped( this );
1106
1107 return NULL;
1108 }
1109
1110 /** Close the consumer.
1111 */
1112
1113 static void consumer_close( mlt_consumer this )
1114 {
1115 // Stop the consumer
1116 mlt_consumer_stop( this );
1117
1118 // Close the parent
1119 mlt_consumer_close( this );
1120
1121 // Free the memory
1122 free( this );
1123 }
my melted branch