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>
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.
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.
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
22 #include "consumer_avformat.h"
25 #include <framework/mlt_frame.h>
27 // System header files
36 // avformat header files
43 // This structure should be extended and made globally available in mlt
55 *sample_fifo, sample_fifo_s;
57 sample_fifo sample_fifo_init( int frequency, int channels )
59 sample_fifo this = calloc( 1, sizeof( sample_fifo_s ) );
60 this->frequency = frequency;
61 this->channels = channels;
65 // sample_fifo_clear and check are temporarily aborted (not working as intended)
67 void sample_fifo_clear( sample_fifo this, double time )
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 )
72 memmove( this->buffer, &this->buffer[ words ], ( this->used - words ) * sizeof( int16_t ) );
76 else if ( ( int )( ( float )time * 100 ) != ( int )( ( float )this->time * 100 ) )
83 void sample_fifo_check( sample_fifo this, double time )
85 if ( this->used == 0 )
87 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )this->time * 100 ) )
92 void sample_fifo_append( sample_fifo this, int16_t *samples, int count )
94 if ( ( this->size - this->used ) < count )
96 this->size += count * 5;
97 this->buffer = realloc( this->buffer, this->size * sizeof( int16_t ) );
100 memcpy( &this->buffer[ this->used ], samples, count * sizeof( int16_t ) );
104 int sample_fifo_used( sample_fifo this )
109 int sample_fifo_fetch( sample_fifo this, int16_t *samples, int count )
111 if ( count > this->used )
114 memcpy( samples, this->buffer, count * sizeof( int16_t ) );
116 memmove( this->buffer, &this->buffer[ count ], this->used * sizeof( int16_t ) );
118 this->time += ( double )count / this->channels / this->frequency;
123 void sample_fifo_close( sample_fifo this )
125 free( this->buffer );
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 );
136 /** Initialise the dv consumer.
139 mlt_consumer consumer_avformat_init( char *arg )
141 // Allocate the consumer
142 mlt_consumer this = mlt_consumer_new( );
144 // If memory allocated and initialises without error
147 // Get properties from the consumer
148 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
150 // Assign close callback
151 this->close = consumer_close;
153 // Interpret the argument
155 mlt_properties_set( properties, "target", arg );
157 // sample and frame queue
158 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
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", 0 );
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", -0.8 );
196 mlt_properties_set_double( properties, "video_b_qfactor", 1.25 );
197 mlt_properties_set_double( properties, "video_i_qoffset", 0 );
198 mlt_properties_set_double( properties, "video_b_qoffset", 1.25 );
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 );
217 // Ensure termination at end of the stream
218 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
220 // Set up start/stop/terminated callbacks
221 this->start = consumer_start;
222 this->stop = consumer_stop;
223 this->is_stopped = consumer_is_stopped;
230 /** Start the consumer.
233 static int consumer_start( mlt_consumer this )
235 // Get the properties
236 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
238 // Check that we're not already running
239 if ( !mlt_properties_get_int( properties, "running" ) )
242 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
244 // Get the width and height
245 int width = mlt_properties_get_int( properties, "width" );
246 int height = mlt_properties_get_int( properties, "height" );
248 // Obtain the size property
249 char *size = mlt_properties_get( properties, "size" );
255 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
262 fprintf( stderr, "consumer_avformat: Invalid size property %s - ignoring.\n", size );
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 );
270 // Assign the thread to properties
271 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
273 // Set the running state
274 mlt_properties_set_int( properties, "running", 1 );
277 pthread_create( thread, NULL, consumer_thread, this );
282 /** Stop the consumer.
285 static int consumer_stop( mlt_consumer this )
287 // Get the properties
288 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
290 // Check that we're running
291 if ( mlt_properties_get_int( properties, "running" ) )
294 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
297 mlt_properties_set_int( properties, "running", 0 );
299 // Wait for termination
300 pthread_join( *thread, NULL );
306 /** Determine if the consumer is stopped.
309 static int consumer_is_stopped( mlt_consumer this )
311 // Get the properties
312 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
313 return !mlt_properties_get_int( properties, "running" );
316 /** Add an audio output stream
319 static AVStream *add_audio_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
321 // Get the properties
322 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
324 // Create a new stream
325 AVStream *st = av_new_stream( oc, 1 );
327 // If created, then initialise from properties
330 AVCodecContext *c = st->codec;
331 c->codec_id = codec_id;
332 c->codec_type = CODEC_TYPE_AUDIO;
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" );
339 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
340 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
342 // Allow the user to override the audio fourcc
343 if ( mlt_properties_get( properties, "afourcc" ) )
346 char *arg = mlt_properties_get( properties, "afourcc" );
347 int tag = strtol( arg, &tail, 0);
349 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
355 fprintf( stderr, "Could not allocate a stream for audio\n" );
361 static int open_audio( AVFormatContext *oc, AVStream *st, int audio_outbuf_size )
363 // We will return the audio input size from here
364 int audio_input_frame_size = 0;
367 AVCodecContext *c = st->codec;
370 AVCodec *codec = avcodec_find_encoder( c->codec_id );
372 // Continue if codec found and we can open it
373 if ( codec != NULL && avcodec_open(c, codec) >= 0 )
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 )
379 audio_input_frame_size = audio_outbuf_size / c->channels;
380 switch(st->codec->codec_id)
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;
394 audio_input_frame_size = c->frame_size;
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;
405 fprintf( stderr, "Unable to encode audio - disabling audio output.\n" );
408 return audio_input_frame_size;
411 static void close_audio( AVFormatContext *oc, AVStream *st )
413 avcodec_close( st->codec );
416 /** Add a video output stream
419 static AVStream *add_video_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
421 // Get the properties
422 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
424 // Create a new stream
425 AVStream *st = av_new_stream( oc, 0 );
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;
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;
445 if ( mlt_properties_get_int( properties, "b_frames" ) )
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;
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" );
476 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
478 c->flags |= CODEC_FLAG_QSCALE;
479 st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
482 // Allow the user to override the video fourcc
483 if ( mlt_properties_get( properties, "vfourcc" ) )
486 const char *arg = mlt_properties_get( properties, "vfourcc" );
487 int tag = strtol( arg, &tail, 0);
489 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
493 // Some formats want stream headers to be seperate
494 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
495 c->flags |= CODEC_FLAG_GLOBAL_HEADER;
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_initial_buffer_occupancy = c->rc_buffer_size*3/4;
501 c->rc_buffer_aggressivity= mlt_properties_get_double( properties, "video_rc_buffer_aggressivity" );
502 c->rc_initial_cplx= mlt_properties_get_double( properties, "video_rc_initial_cplx" );
503 c->i_quant_factor = mlt_properties_get_double( properties, "video_i_qfactor" );
504 c->b_quant_factor = mlt_properties_get_double( properties, "video_b_qfactor" );
505 c->i_quant_offset = mlt_properties_get_double( properties, "video_i_qoffset" );
506 c->b_quant_offset = mlt_properties_get_double( properties, "video_b_qoffset" );
507 c->intra_quant_bias = mlt_properties_get_int( properties, "video_intra_quant_bias" );
508 c->inter_quant_bias = mlt_properties_get_int( properties, "video_inter_quant_bias" );
509 c->dct_algo = mlt_properties_get_int( properties, "dct_algo" );
510 c->idct_algo = mlt_properties_get_int( properties, "idct_algo" );
511 c->me_threshold= mlt_properties_get_int( properties, "me_threshold" );
512 c->mb_threshold= mlt_properties_get_int( properties, "mb_threshold" );
513 c->intra_dc_precision= mlt_properties_get_int( properties, "intra_dc_precision" );
514 c->strict_std_compliance = mlt_properties_get_int( properties, "strict" );
515 c->error_rate = mlt_properties_get_int( properties, "error_rate" );
516 c->noise_reduction= mlt_properties_get_int( properties, "noise_reduction" );
517 c->scenechange_threshold= mlt_properties_get_int( properties, "sc_threshold" );
518 c->me_range = mlt_properties_get_int( properties, "me_range" );
519 c->coder_type= mlt_properties_get_int( properties, "coder" );
520 c->context_model= mlt_properties_get_int( properties, "context" );
521 c->prediction_method= mlt_properties_get_int( properties, "predictor" );
522 c->me_method = mlt_properties_get_int( properties, "me_method" );
523 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
524 mlt_properties_get_int( properties, "deinterlace" ) == 0 )
526 if ( mlt_properties_get_int( properties, "ildct" ) )
527 c->flags |= CODEC_FLAG_INTERLACED_DCT;
528 if ( mlt_properties_get_int( properties, "ilme" ) )
529 c->flags |= CODEC_FLAG_INTERLACED_ME;
534 fprintf( stderr, "Could not allocate a stream for video\n" );
540 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
543 AVFrame *picture = avcodec_alloc_frame();
545 // Determine size of the
546 int size = avpicture_get_size(pix_fmt, width, height);
548 // Allocate the picture buf
549 uint8_t *picture_buf = av_malloc(size);
551 // If we have both, then fill the image
552 if ( picture != NULL && picture_buf != NULL )
554 // Fill the frame with the allocated buffer
555 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
559 // Something failed - clean up what we can
561 av_free( picture_buf );
568 static int open_video(AVFormatContext *oc, AVStream *st)
571 AVCodecContext *video_enc = st->codec;
573 // find the video encoder
574 AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
576 if( codec && codec->pix_fmts )
578 const enum PixelFormat *p = codec->pix_fmts;
581 if( *p == video_enc->pix_fmt )
585 video_enc->pix_fmt = codec->pix_fmts[ 0 ];
588 // Open the codec safely
589 return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
592 void close_video(AVFormatContext *oc, AVStream *st)
594 avcodec_close(st->codec);
597 static inline long time_difference( struct timeval *time1 )
599 struct timeval time2;
600 gettimeofday( &time2, NULL );
601 return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
604 /** The main thread - the argument is simply the consumer.
607 static void *consumer_thread( void *arg )
609 // Map the argument to the object
610 mlt_consumer this = arg;
612 // Get the properties
613 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
615 // Get the terminate on pause property
616 int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
619 // Determine if feed is slow (for realtime stuff)
620 int real_time_output = mlt_properties_get_int( properties, "real_time" );
625 // Get the frame rate
626 double fps = mlt_properties_get_double( properties, "fps" );
628 // Get width and height
629 int width = mlt_properties_get_int( properties, "width" );
630 int height = mlt_properties_get_int( properties, "height" );
631 int img_width = width;
632 int img_height = height;
634 // Get default audio properties
635 mlt_audio_format aud_fmt = mlt_audio_pcm;
636 int channels = mlt_properties_get_int( properties, "channels" );
637 int frequency = mlt_properties_get_int( properties, "frequency" );
641 // AVFormat audio buffer and frame size
642 int audio_outbuf_size = 10000;
643 uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
644 int audio_input_frame_size = 0;
646 // AVFormat video buffer and frame count
648 int video_outbuf_size = ( 1024 * 1024 );
649 uint8_t *video_outbuf = av_malloc( video_outbuf_size );
651 // Used for the frame properties
652 mlt_frame frame = NULL;
653 mlt_properties frame_properties = NULL;
656 mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
657 sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
659 // Need two av pictures for converting
660 AVFrame *output = NULL;
661 AVFrame *input = alloc_picture( PIX_FMT_YUV422, width, height );
663 // For receiving images from an mlt_frame
665 mlt_image_format img_fmt = mlt_image_yuv422;
667 // For receiving audio samples back from the fifo
668 int16_t *buffer = av_malloc( 48000 * 2 );
671 // Allocate the context
672 AVFormatContext *oc = av_alloc_format_context( );
675 AVStream *audio_st = NULL;
676 AVStream *video_st = NULL;
679 double audio_pts = 0;
680 double video_pts = 0;
687 long int total_time = 0;
689 // Determine the format
690 AVOutputFormat *fmt = NULL;
691 char *filename = mlt_properties_get( properties, "target" );
692 char *format = mlt_properties_get( properties, "format" );
693 char *vcodec = mlt_properties_get( properties, "vcodec" );
694 char *acodec = mlt_properties_get( properties, "acodec" );
696 // Used to store and override codec ids
700 // Check for user selected format first
701 if ( format != NULL )
702 fmt = guess_format( format, NULL, NULL );
704 // Otherwise check on the filename
705 if ( fmt == NULL && filename != NULL )
706 fmt = guess_format( NULL, filename, NULL );
708 // Otherwise default to mpeg
710 fmt = guess_format( "mpeg", NULL, NULL );
712 // We need a filename - default to stdout?
713 if ( filename == NULL || !strcmp( filename, "" ) )
716 // Get the codec ids selected
717 audio_codec_id = fmt->audio_codec;
718 video_codec_id = fmt->video_codec;
720 // Check for audio codec overides
721 if ( acodec != NULL )
723 AVCodec *p = first_avcodec;
726 if ( !strcmp( p->name, acodec ) && p->type == CODEC_TYPE_AUDIO )
731 audio_codec_id = p->id;
733 fprintf( stderr, "consumer_avcodec: audio codec %s unrecognised - ignoring\n", acodec );
736 // Check for video codec overides
737 if ( vcodec != NULL )
739 AVCodec *p = first_avcodec;
742 if ( !strcmp( p->name, vcodec ) && p->type == CODEC_TYPE_VIDEO )
747 video_codec_id = p->id;
749 fprintf( stderr, "consumer_avcodec: video codec %s unrecognised - ignoring\n", vcodec );
752 // Update the output context
758 tmp = mlt_properties_get( properties, "meta.attr.title.markup");
759 if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
761 tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
762 if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
764 tmp = mlt_properties_get( properties, "meta.attr.author.markup");
765 if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
767 tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
768 if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
770 tmp = mlt_properties_get( properties, "meta.attr.album.markup");
771 if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
773 metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
774 if (metavalue != 0) oc->year = metavalue;
776 metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
777 if (metavalue != 0) oc->track = metavalue;
780 snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
782 // Add audio and video streams
783 if ( fmt->video_codec != CODEC_ID_NONE )
784 video_st = add_video_stream( this, oc, video_codec_id );
785 if ( fmt->audio_codec != CODEC_ID_NONE )
786 audio_st = add_audio_stream( this, oc, audio_codec_id );
788 // Set the parameters (even though we have none...)
789 if ( av_set_parameters(oc, NULL) >= 0 )
791 if ( video_st && !open_video( oc, video_st ) )
794 audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
796 // Open the output file, if needed
797 if ( !( fmt->flags & AVFMT_NOFILE ) )
799 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0)
801 fprintf(stderr, "Could not open '%s'\n", filename);
802 mlt_properties_set_int( properties, "running", 0 );
806 // Write the stream header, if any
807 if ( mlt_properties_get_int( properties, "running" ) )
808 av_write_header( oc );
812 fprintf(stderr, "Invalid output format parameters\n");
813 mlt_properties_set_int( properties, "running", 0 );
818 output = alloc_picture( video_st->codec->pix_fmt, width, height );
820 // Last check - need at least one stream
821 if ( audio_st == NULL && video_st == NULL )
822 mlt_properties_set_int( properties, "running", 0 );
824 // Get the starting time (can ignore the times above)
825 gettimeofday( &ante, NULL );
827 // Loop while running
828 while( mlt_properties_get_int( properties, "running" ) && !terminated )
831 frame = mlt_consumer_rt_frame( this );
833 // Check that we have a frame to work with
836 // Increment frames despatched
839 // Default audio args
840 frame_properties = MLT_FRAME_PROPERTIES( frame );
842 // Check for the terminated condition
843 terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
845 // Get audio and append to the fifo
846 if ( !terminated && audio_st )
848 samples = mlt_sample_calculator( fps, frequency, count ++ );
849 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
851 // Create the fifo if we don't have one
854 fifo = sample_fifo_init( frequency, channels );
855 mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
858 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
859 memset( pcm, 0, samples * channels * 2 );
861 // Append the samples
862 sample_fifo_append( fifo, pcm, samples * channels );
863 total_time += ( samples * 1000000 ) / frequency;
867 if ( !terminated && video_st )
868 mlt_deque_push_back( queue, frame );
870 mlt_frame_close( frame );
873 // While we have stuff to process, process...
877 audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
882 video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
886 // Write interleaved audio and video frames
887 if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
889 if ( channels * audio_input_frame_size < sample_fifo_used( fifo ) )
893 av_init_packet( &pkt );
897 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
899 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
900 // Write the compressed frame in the media file
901 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
902 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
903 pkt.flags |= PKT_FLAG_KEY;
904 pkt.stream_index= audio_st->index;
905 pkt.data= audio_outbuf;
908 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
909 fprintf(stderr, "Error while writing audio frame\n");
911 audio_pts += c->frame_size;
920 if ( mlt_deque_count( queue ) )
925 frame = mlt_deque_pop_front( queue );
926 frame_properties = MLT_FRAME_PROPERTIES( frame );
930 if ( mlt_properties_get_int( frame_properties, "rendered" ) )
937 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
939 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
943 // Convert the mlt frame to an AVPicture
944 for ( i = 0; i < height; i ++ )
946 p = input->data[ 0 ] + i * input->linesize[ 0 ];
955 // Do the colour space conversion
957 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUV422,
958 width, height, video_st->codec->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL);
959 sws_scale( context, input->data, input->linesize, 0, height,
960 output->data, output->linesize);
961 sws_freeContext( context );
963 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUV422, width, height );
966 // Apply the alpha if applicable
967 if ( video_st->codec->pix_fmt == PIX_FMT_RGBA32 )
969 uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
972 for ( i = 0; i < height; i ++ )
974 n = ( width + 7 ) / 8;
975 p = output->data[ 0 ] + i * output->linesize[ 0 ];
983 case 0: do { *p = *alpha++; p += 4;
984 case 7: *p = *alpha++; p += 4;
985 case 6: *p = *alpha++; p += 4;
986 case 5: *p = *alpha++; p += 4;
987 case 4: *p = *alpha++; p += 4;
988 case 3: *p = *alpha++; p += 4;
989 case 2: *p = *alpha++; p += 4;
990 case 1: *p = *alpha++; p += 4;
998 if (oc->oformat->flags & AVFMT_RAWPICTURE)
1000 // raw video case. The API will change slightly in the near future for that
1002 av_init_packet(&pkt);
1004 pkt.flags |= PKT_FLAG_KEY;
1005 pkt.stream_index= video_st->index;
1006 pkt.data= (uint8_t *)output;
1007 pkt.size= sizeof(AVPicture);
1009 ret = av_write_frame(oc, &pkt);
1010 video_pts += c->frame_size;
1015 output->quality = video_st->quality;
1017 // Set frame interlace hints
1018 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1019 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1022 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1024 // If zero size, it means the image was buffered
1028 av_init_packet( &pkt );
1030 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1031 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1032 if( c->coded_frame && c->coded_frame->key_frame )
1033 pkt.flags |= PKT_FLAG_KEY;
1034 pkt.stream_index= video_st->index;
1035 pkt.data= video_outbuf;
1038 // write the compressed frame in the media file
1039 ret = av_interleaved_write_frame(oc, &pkt);
1040 video_pts += c->frame_size;
1044 fprintf( stderr, "Error with video encode\n" );
1048 mlt_frame_close( frame );
1057 if ( real_time_output && frames % 12 == 0 )
1059 long passed = time_difference( &ante );
1062 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1065 if ( passed < total_time )
1067 long total = ( total_time - passed );
1068 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1069 nanosleep( &t, NULL );
1075 if ( ! real_time_output )
1078 if ( audio_st && audio_st->codec->frame_size > 1 ) for (;;)
1080 AVCodecContext *c = audio_st->codec;
1082 av_init_packet( &pkt );
1085 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1086 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1088 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1089 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1091 if ( pkt.size <= 0 )
1092 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1093 if ( pkt.size <= 0 )
1096 // Write the compressed frame in the media file
1097 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1098 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1099 pkt.flags |= PKT_FLAG_KEY;
1100 pkt.stream_index = audio_st->index;
1101 pkt.data = audio_outbuf;
1102 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1104 fprintf(stderr, "Error while writing flushed audio frame\n");
1110 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1112 AVCodecContext *c = video_st->codec;
1114 av_init_packet( &pkt );
1117 pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1118 if ( pkt.size <= 0 )
1121 if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1122 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1123 if( c->coded_frame && c->coded_frame->key_frame )
1124 pkt.flags |= PKT_FLAG_KEY;
1125 pkt.stream_index = video_st->index;
1126 pkt.data = video_outbuf;
1128 // write the compressed frame in the media file
1129 if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1131 fprintf(stderr, "Error while writing flushed video frame\n");
1140 close_video(oc, video_st);
1142 close_audio(oc, audio_st);
1144 // Write the trailer, if any
1145 av_write_trailer(oc);
1148 for(i = 0; i < oc->nb_streams; i++)
1149 av_freep(&oc->streams[i]);
1151 // Close the output file
1152 if (!(fmt->flags & AVFMT_NOFILE))
1153 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1156 url_fclose(&oc->pb);
1159 // Clean up input and output frames
1161 av_free( output->data[0] );
1163 av_free( input->data[0] );
1165 av_free( video_outbuf );
1171 // Just in case we terminated on pause
1172 mlt_properties_set_int( properties, "running", 0 );
1174 mlt_consumer_stopped( this );
1179 /** Close the consumer.
1182 static void consumer_close( mlt_consumer this )
1184 // Stop the consumer
1185 mlt_consumer_stop( this );
1188 mlt_consumer_close( this );