2 * consumer_avformat.c -- an encoder based on avformat
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
5 * Much code borrowed from ffmpeg.c: Copyright (c) 2000-2003 Fabrice Bellard
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <framework/mlt_consumer.h>
24 #include <framework/mlt_frame.h>
26 // System header files
36 // avformat header files
44 // This structure should be extended and made globally available in mlt
56 *sample_fifo
, sample_fifo_s
;
58 sample_fifo
sample_fifo_init( int frequency
, int channels
)
60 sample_fifo
this = calloc( 1, sizeof( sample_fifo_s
) );
61 this->frequency
= frequency
;
62 this->channels
= channels
;
66 // sample_fifo_clear and check are temporarily aborted (not working as intended)
68 void sample_fifo_clear( sample_fifo
this, double time
)
70 int words
= ( float )( time
- this->time
) * this->frequency
* this->channels
;
71 if ( ( int )( ( float )time
* 100 ) < ( int )( ( float )this->time
* 100 ) && this->used
> words
&& words
> 0 )
73 memmove( this->buffer
, &this->buffer
[ words
], ( this->used
- words
) * sizeof( int16_t ) );
77 else if ( ( int )( ( float )time
* 100 ) != ( int )( ( float )this->time
* 100 ) )
84 void sample_fifo_check( sample_fifo
this, double time
)
86 if ( this->used
== 0 )
88 if ( ( int )( ( float )time
* 100 ) < ( int )( ( float )this->time
* 100 ) )
93 void sample_fifo_append( sample_fifo
this, int16_t *samples
, int count
)
95 if ( ( this->size
- this->used
) < count
)
97 this->size
+= count
* 5;
98 this->buffer
= realloc( this->buffer
, this->size
* sizeof( int16_t ) );
101 memcpy( &this->buffer
[ this->used
], samples
, count
* sizeof( int16_t ) );
105 int sample_fifo_used( sample_fifo
this )
110 int sample_fifo_fetch( sample_fifo
this, int16_t *samples
, int count
)
112 if ( count
> this->used
)
115 memcpy( samples
, this->buffer
, count
* sizeof( int16_t ) );
117 memmove( this->buffer
, &this->buffer
[ count
], this->used
* sizeof( int16_t ) );
119 this->time
+= ( double )count
/ this->channels
/ this->frequency
;
124 void sample_fifo_close( sample_fifo
this )
126 free( this->buffer
);
130 // Forward references.
131 static int consumer_start( mlt_consumer
this );
132 static int consumer_stop( mlt_consumer
this );
133 static int consumer_is_stopped( mlt_consumer
this );
134 static void *consumer_thread( void *arg
);
135 static void consumer_close( mlt_consumer
this );
137 /** Initialise the dv consumer.
140 mlt_consumer
consumer_avformat_init( mlt_profile profile
, char *arg
)
142 // Allocate the consumer
143 mlt_consumer
this = mlt_consumer_new( profile
);
145 // If memory allocated and initialises without error
148 // Get properties from the consumer
149 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
151 // Assign close callback
152 this->close
= consumer_close
;
154 // Interpret the argument
156 mlt_properties_set( properties
, "target", arg
);
158 // sample and frame queue
159 mlt_properties_set_data( properties
, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor
)mlt_deque_close
, NULL
);
161 // Audio options not fully handled by AVOptions
162 #define QSCALE_NONE (-99999)
163 mlt_properties_set_int( properties
, "aq", QSCALE_NONE
);
165 // Video options not fully handled by AVOptions
166 mlt_properties_set_int( properties
, "dc", 8 );
168 // Muxer options not fully handled by AVOptions
169 mlt_properties_set_double( properties
, "muxdelay", 0.7 );
170 mlt_properties_set_double( properties
, "muxpreload", 0.5 );
172 // Ensure termination at end of the stream
173 mlt_properties_set_int( properties
, "terminate_on_pause", 1 );
175 // Default to separate processing threads for producer and consumer with no frame dropping!
176 mlt_properties_set_int( properties
, "real_time", -1 );
178 // Set up start/stop/terminated callbacks
179 this->start
= consumer_start
;
180 this->stop
= consumer_stop
;
181 this->is_stopped
= consumer_is_stopped
;
188 /** Start the consumer.
191 static int consumer_start( mlt_consumer
this )
193 // Get the properties
194 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
197 // Report information about available muxers and codecs as YAML Tiny
198 char *s
= mlt_properties_get( properties
, "f" );
199 if ( s
&& strcmp( s
, "list" ) == 0 )
201 fprintf( stderr
, "---\nformats:\n" );
202 AVOutputFormat
*format
= NULL
;
203 while ( ( format
= av_oformat_next( format
) ) )
204 fprintf( stderr
, " - %s\n", format
->name
);
205 fprintf( stderr
, "...\n" );
208 s
= mlt_properties_get( properties
, "acodec" );
209 if ( s
&& strcmp( s
, "list" ) == 0 )
211 fprintf( stderr
, "---\naudio_codecs:\n" );
212 AVCodec
*codec
= NULL
;
213 while ( ( codec
= av_codec_next( codec
) ) )
214 if ( codec
->encode
&& codec
->type
== CODEC_TYPE_AUDIO
)
215 fprintf( stderr
, " - %s\n", codec
->name
);
216 fprintf( stderr
, "...\n" );
219 s
= mlt_properties_get( properties
, "vcodec" );
220 if ( s
&& strcmp( s
, "list" ) == 0 )
222 fprintf( stderr
, "---\nvideo_codecs:\n" );
223 AVCodec
*codec
= NULL
;
224 while ( ( codec
= av_codec_next( codec
) ) )
225 if ( codec
->encode
&& codec
->type
== CODEC_TYPE_VIDEO
)
226 fprintf( stderr
, " - %s\n", codec
->name
);
227 fprintf( stderr
, "...\n" );
231 // Check that we're not already running
232 if ( !error
&& !mlt_properties_get_int( properties
, "running" ) )
235 pthread_t
*thread
= calloc( 1, sizeof( pthread_t
) );
237 // Get the width and height
238 int width
= mlt_properties_get_int( properties
, "width" );
239 int height
= mlt_properties_get_int( properties
, "height" );
241 // Obtain the size property
242 char *size
= mlt_properties_get( properties
, "s" );
248 if ( sscanf( size
, "%dx%d", &tw
, &th
) == 2 && tw
> 0 && th
> 0 )
255 fprintf( stderr
, "%s: Invalid size property %s - ignoring.\n", __FILE__
, size
);
259 // Now ensure we honour the multiple of two requested by libavformat
260 width
= ( width
/ 2 ) * 2;
261 height
= ( height
/ 2 ) * 2;
262 mlt_properties_set_int( properties
, "width", width
);
263 mlt_properties_set_int( properties
, "height", height
);
265 // We need to set these on the profile as well because the s property is
266 // an alias to mlt properties that correspond to profile settings.
267 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
270 profile
->width
= width
;
271 profile
->height
= height
;
274 // Handle the ffmpeg command line "-r" property for frame rate
275 if ( mlt_properties_get( properties
, "r" ) )
277 double frame_rate
= mlt_properties_get_double( properties
, "r" );
278 AVRational rational
= av_d2q( frame_rate
, 255 );
279 mlt_properties_set_int( properties
, "frame_rate_num", rational
.num
);
280 mlt_properties_set_int( properties
, "frame_rate_den", rational
.den
);
283 profile
->frame_rate_num
= rational
.num
;
284 profile
->frame_rate_den
= rational
.den
;
285 mlt_properties_set_double( properties
, "fps", mlt_profile_fps( profile
) );
289 // Apply AVOptions that are synonyms for standard mlt_consumer options
290 if ( mlt_properties_get( properties
, "ac" ) )
291 mlt_properties_set_int( properties
, "channels", mlt_properties_get_int( properties
, "ac" ) );
292 if ( mlt_properties_get( properties
, "ar" ) )
293 mlt_properties_set_int( properties
, "frequency", mlt_properties_get_int( properties
, "ar" ) );
295 // Assign the thread to properties
296 mlt_properties_set_data( properties
, "thread", thread
, sizeof( pthread_t
), free
, NULL
);
298 // Set the running state
299 mlt_properties_set_int( properties
, "running", 1 );
302 pthread_create( thread
, NULL
, consumer_thread
, this );
307 /** Stop the consumer.
310 static int consumer_stop( mlt_consumer
this )
312 // Get the properties
313 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
315 // Check that we're running
316 if ( mlt_properties_get_int( properties
, "running" ) )
319 pthread_t
*thread
= mlt_properties_get_data( properties
, "thread", NULL
);
322 mlt_properties_set_int( properties
, "running", 0 );
324 // Wait for termination
325 pthread_join( *thread
, NULL
);
331 /** Determine if the consumer is stopped.
334 static int consumer_is_stopped( mlt_consumer
this )
336 // Get the properties
337 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
338 return !mlt_properties_get_int( properties
, "running" );
341 /** Process properties as AVOptions and apply to AV context obj
344 static void apply_properties( void *obj
, mlt_properties properties
, int flags
)
347 int count
= mlt_properties_count( properties
);
348 for ( i
= 0; i
< count
; i
++ )
350 const char *opt_name
= mlt_properties_get_name( properties
, i
);
351 const AVOption
*opt
= av_find_opt( obj
, opt_name
, NULL
, flags
, flags
);
353 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
354 av_set_string3( obj
, opt_name
, mlt_properties_get( properties
, opt_name
), 0, NULL
);
355 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
356 av_set_string2( obj
, opt_name
, mlt_properties_get( properties
, opt_name
), 0 );
358 av_set_string( obj
, opt_name
, mlt_properties_get( properties
, opt_name
) );
363 /** Add an audio output stream
366 static AVStream
*add_audio_stream( mlt_consumer
this, AVFormatContext
*oc
, int codec_id
)
368 // Get the properties
369 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
371 // Create a new stream
372 AVStream
*st
= av_new_stream( oc
, 1 );
374 // If created, then initialise from properties
377 AVCodecContext
*c
= st
->codec
;
379 // Establish defaults from AVOptions
380 avcodec_get_context_defaults2( c
, CODEC_TYPE_AUDIO
);
382 c
->codec_id
= codec_id
;
383 c
->codec_type
= CODEC_TYPE_AUDIO
;
385 // Setup multi-threading
386 int thread_count
= mlt_properties_get_int( properties
, "threads" );
387 if ( thread_count
== 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
388 thread_count
= atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
389 if ( thread_count
> 1 )
390 avcodec_thread_init( c
, thread_count
);
392 if (oc
->oformat
->flags
& AVFMT_GLOBALHEADER
)
393 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
395 // Allow the user to override the audio fourcc
396 if ( mlt_properties_get( properties
, "atag" ) )
399 char *arg
= mlt_properties_get( properties
, "atag" );
400 int tag
= strtol( arg
, &tail
, 0);
402 tag
= arg
[ 0 ] + ( arg
[ 1 ] << 8 ) + ( arg
[ 2 ] << 16 ) + ( arg
[ 3 ] << 24 );
406 // Process properties as AVOptions
407 apply_properties( c
, properties
, AV_OPT_FLAG_AUDIO_PARAM
| AV_OPT_FLAG_ENCODING_PARAM
);
409 int audio_qscale
= mlt_properties_get_int( properties
, "aq" );
410 if ( audio_qscale
> QSCALE_NONE
)
412 c
->flags
|= CODEC_FLAG_QSCALE
;
413 c
->global_quality
= st
->quality
= FF_QP2LAMBDA
* audio_qscale
;
416 // Set parameters controlled by MLT
417 c
->sample_rate
= mlt_properties_get_int( properties
, "frequency" );
418 c
->channels
= mlt_properties_get_int( properties
, "channels" );
420 if ( mlt_properties_get( properties
, "alang" ) != NULL
)
421 strncpy( st
->language
, mlt_properties_get( properties
, "alang" ), sizeof( st
->language
) );
425 fprintf( stderr
, "%s: Could not allocate a stream for audio\n", __FILE__
);
431 static int open_audio( AVFormatContext
*oc
, AVStream
*st
, int audio_outbuf_size
)
433 // We will return the audio input size from here
434 int audio_input_frame_size
= 0;
437 AVCodecContext
*c
= st
->codec
;
440 AVCodec
*codec
= avcodec_find_encoder( c
->codec_id
);
442 // Continue if codec found and we can open it
443 if ( codec
!= NULL
&& avcodec_open( c
, codec
) >= 0 )
445 // ugly hack for PCM codecs (will be removed ASAP with new PCM
446 // support to compute the input frame size in samples
447 if ( c
->frame_size
<= 1 )
449 audio_input_frame_size
= audio_outbuf_size
/ c
->channels
;
450 switch(st
->codec
->codec_id
)
452 case CODEC_ID_PCM_S16LE
:
453 case CODEC_ID_PCM_S16BE
:
454 case CODEC_ID_PCM_U16LE
:
455 case CODEC_ID_PCM_U16BE
:
456 audio_input_frame_size
>>= 1;
464 audio_input_frame_size
= c
->frame_size
;
467 // Some formats want stream headers to be seperate (hmm)
468 if( !strcmp( oc
->oformat
->name
, "mp4" ) ||
469 !strcmp( oc
->oformat
->name
, "mov" ) ||
470 !strcmp( oc
->oformat
->name
, "3gp" ) )
471 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
475 fprintf( stderr
, "%s: Unable to encode audio - disabling audio output.\n", __FILE__
);
478 return audio_input_frame_size
;
481 static void close_audio( AVFormatContext
*oc
, AVStream
*st
)
483 avcodec_close( st
->codec
);
486 /** Add a video output stream
489 static AVStream
*add_video_stream( mlt_consumer
this, AVFormatContext
*oc
, int codec_id
)
491 // Get the properties
492 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
494 // Create a new stream
495 AVStream
*st
= av_new_stream( oc
, 0 );
499 char *pix_fmt
= mlt_properties_get( properties
, "pix_fmt" );
500 AVCodecContext
*c
= st
->codec
;
502 // Establish defaults from AVOptions
503 avcodec_get_context_defaults2( c
, CODEC_TYPE_VIDEO
);
505 c
->codec_id
= codec_id
;
506 c
->codec_type
= CODEC_TYPE_VIDEO
;
508 // Setup multi-threading
509 int thread_count
= mlt_properties_get_int( properties
, "threads" );
510 if ( thread_count
== 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
511 thread_count
= atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
512 if ( thread_count
> 1 )
513 avcodec_thread_init( c
, thread_count
);
515 // Process properties as AVOptions
516 apply_properties( c
, properties
, AV_OPT_FLAG_VIDEO_PARAM
| AV_OPT_FLAG_ENCODING_PARAM
);
518 // Set options controlled by MLT
519 c
->width
= mlt_properties_get_int( properties
, "width" );
520 c
->height
= mlt_properties_get_int( properties
, "height" );
521 c
->time_base
.num
= mlt_properties_get_int( properties
, "frame_rate_den" );
522 c
->time_base
.den
= mlt_properties_get_int( properties
, "frame_rate_num" );
523 st
->time_base
= c
->time_base
;
524 c
->pix_fmt
= pix_fmt ?
avcodec_get_pix_fmt( pix_fmt
) : PIX_FMT_YUV420P
;
526 if ( mlt_properties_get( properties
, "aspect" ) )
528 // "-aspect" on ffmpeg command line is display aspect ratio
529 double ar
= mlt_properties_get_double( properties
, "aspect" );
530 AVRational rational
= av_d2q( ar
, 255 );
532 // Update the profile and properties as well since this is an alias
533 // for mlt properties that correspond to profile settings
534 mlt_properties_set_int( properties
, "display_aspect_num", rational
.num
);
535 mlt_properties_set_int( properties
, "display_aspect_den", rational
.den
);
536 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
539 profile
->display_aspect_num
= rational
.num
;
540 profile
->display_aspect_den
= rational
.den
;
541 mlt_properties_set_double( properties
, "display_ratio", mlt_profile_dar( profile
) );
544 // Now compute the sample aspect ratio
545 rational
= av_d2q( ar
* c
->height
/ c
->width
, 255 );
546 c
->sample_aspect_ratio
= rational
;
547 // Update the profile and properties as well since this is an alias
548 // for mlt properties that correspond to profile settings
549 mlt_properties_set_int( properties
, "sample_aspect_num", rational
.num
);
550 mlt_properties_set_int( properties
, "sample_aspect_den", rational
.den
);
553 profile
->sample_aspect_num
= rational
.num
;
554 profile
->sample_aspect_den
= rational
.den
;
555 mlt_properties_set_double( properties
, "aspect_ratio", mlt_profile_sar( profile
) );
560 c
->sample_aspect_ratio
.num
= mlt_properties_get_int( properties
, "sample_aspect_num" );
561 c
->sample_aspect_ratio
.den
= mlt_properties_get_int( properties
, "sample_aspect_den" );
563 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
564 st
->sample_aspect_ratio
= c
->sample_aspect_ratio
;
567 if ( mlt_properties_get_double( properties
, "qscale" ) > 0 )
569 c
->flags
|= CODEC_FLAG_QSCALE
;
570 st
->quality
= FF_QP2LAMBDA
* mlt_properties_get_double( properties
, "qscale" );
573 // Allow the user to override the video fourcc
574 if ( mlt_properties_get( properties
, "vtag" ) )
577 const char *arg
= mlt_properties_get( properties
, "vtag" );
578 int tag
= strtol( arg
, &tail
, 0);
580 tag
= arg
[ 0 ] + ( arg
[ 1 ] << 8 ) + ( arg
[ 2 ] << 16 ) + ( arg
[ 3 ] << 24 );
584 // Some formats want stream headers to be seperate
585 if ( oc
->oformat
->flags
& AVFMT_GLOBALHEADER
)
586 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
588 // Translate these standard mlt consumer properties to ffmpeg
589 if ( mlt_properties_get_int( properties
, "progressive" ) == 0 &&
590 mlt_properties_get_int( properties
, "deinterlace" ) == 0 )
592 if ( mlt_properties_get_int( properties
, "ildct" ) )
593 c
->flags
|= CODEC_FLAG_INTERLACED_DCT
;
594 if ( mlt_properties_get_int( properties
, "ilme" ) )
595 c
->flags
|= CODEC_FLAG_INTERLACED_ME
;
598 // parse the ratecontrol override string
600 char *rc_override
= mlt_properties_get( properties
, "rc_override" );
601 for ( i
= 0; rc_override
; i
++ )
604 int e
= sscanf( rc_override
, "%d,%d,%d", &start
, &end
, &q
);
606 fprintf( stderr
, "%s: Error parsing rc_override\n", __FILE__
);
607 c
->rc_override
= av_realloc( c
->rc_override
, sizeof( RcOverride
) * ( i
+ 1 ) );
608 c
->rc_override
[i
].start_frame
= start
;
609 c
->rc_override
[i
].end_frame
= end
;
612 c
->rc_override
[i
].qscale
= q
;
613 c
->rc_override
[i
].quality_factor
= 1.0;
617 c
->rc_override
[i
].qscale
= 0;
618 c
->rc_override
[i
].quality_factor
= -q
/ 100.0;
620 rc_override
= strchr( rc_override
, '/' );
624 c
->rc_override_count
= i
;
625 if ( !c
->rc_initial_buffer_occupancy
)
626 c
->rc_initial_buffer_occupancy
= c
->rc_buffer_size
* 3/4;
627 c
->intra_dc_precision
= mlt_properties_get_int( properties
, "dc" ) - 8;
630 i
= mlt_properties_get_int( properties
, "pass" );
632 c
->flags
|= CODEC_FLAG_PASS1
;
634 c
->flags
|= CODEC_FLAG_PASS2
;
635 if ( codec_id
!= CODEC_ID_H264
&& ( c
->flags
& ( CODEC_FLAG_PASS1
| CODEC_FLAG_PASS2
) ) )
637 char logfilename
[1024];
642 snprintf( logfilename
, sizeof(logfilename
), "%s_2pass.log",
643 mlt_properties_get( properties
, "passlogfile" ) ?
mlt_properties_get( properties
, "passlogfile" ) : mlt_properties_get( properties
, "target" ) );
644 if ( c
->flags
& CODEC_FLAG_PASS1
)
646 f
= fopen( logfilename
, "w" );
648 perror( logfilename
);
650 mlt_properties_set_data( properties
, "_logfile", f
, 0, ( mlt_destructor
)fclose
, NULL
);
654 /* read the log file */
655 f
= fopen( logfilename
, "r" );
662 mlt_properties_set( properties
, "_logfilename", logfilename
);
663 fseek( f
, 0, SEEK_END
);
665 fseek( f
, 0, SEEK_SET
);
666 logbuffer
= av_malloc( size
+ 1 );
668 fprintf( stderr
, "%s: Could not allocate log buffer\n", __FILE__
);
671 size
= fread( logbuffer
, 1, size
, f
);
673 logbuffer
[size
] = '\0';
674 c
->stats_in
= logbuffer
;
675 mlt_properties_set_data( properties
, "_logbuffer", logbuffer
, 0, ( mlt_destructor
)av_free
, NULL
);
683 fprintf( stderr
, "%s: Could not allocate a stream for video\n", __FILE__
);
689 static AVFrame
*alloc_picture( int pix_fmt
, int width
, int height
)
692 AVFrame
*picture
= avcodec_alloc_frame();
694 // Determine size of the
695 int size
= avpicture_get_size(pix_fmt
, width
, height
);
697 // Allocate the picture buf
698 uint8_t *picture_buf
= av_malloc(size
);
700 // If we have both, then fill the image
701 if ( picture
!= NULL
&& picture_buf
!= NULL
)
703 // Fill the frame with the allocated buffer
704 avpicture_fill( (AVPicture
*)picture
, picture_buf
, pix_fmt
, width
, height
);
708 // Something failed - clean up what we can
710 av_free( picture_buf
);
717 static int open_video(AVFormatContext
*oc
, AVStream
*st
)
720 AVCodecContext
*video_enc
= st
->codec
;
722 // find the video encoder
723 AVCodec
*codec
= avcodec_find_encoder( video_enc
->codec_id
);
725 if( codec
&& codec
->pix_fmts
)
727 const enum PixelFormat
*p
= codec
->pix_fmts
;
730 if( *p
== video_enc
->pix_fmt
)
734 video_enc
->pix_fmt
= codec
->pix_fmts
[ 0 ];
737 // Open the codec safely
738 return codec
!= NULL
&& avcodec_open( video_enc
, codec
) >= 0;
741 void close_video(AVFormatContext
*oc
, AVStream
*st
)
743 avcodec_close(st
->codec
);
746 static inline long time_difference( struct timeval
*time1
)
748 struct timeval time2
;
749 gettimeofday( &time2
, NULL
);
750 return time2
.tv_sec
* 1000000 + time2
.tv_usec
- time1
->tv_sec
* 1000000 - time1
->tv_usec
;
753 /** The main thread - the argument is simply the consumer.
756 static void *consumer_thread( void *arg
)
758 // Map the argument to the object
759 mlt_consumer
this = arg
;
761 // Get the properties
762 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
764 // Get the terminate on pause property
765 int terminate_on_pause
= mlt_properties_get_int( properties
, "terminate_on_pause" );
768 // Determine if feed is slow (for realtime stuff)
769 int real_time_output
= mlt_properties_get_int( properties
, "real_time" );
774 // Get the frame rate
775 double fps
= mlt_properties_get_double( properties
, "fps" );
777 // Get width and height
778 int width
= mlt_properties_get_int( properties
, "width" );
779 int height
= mlt_properties_get_int( properties
, "height" );
780 int img_width
= width
;
781 int img_height
= height
;
783 // Get default audio properties
784 mlt_audio_format aud_fmt
= mlt_audio_pcm
;
785 int channels
= mlt_properties_get_int( properties
, "channels" );
786 int frequency
= mlt_properties_get_int( properties
, "frequency" );
790 // AVFormat audio buffer and frame size
791 int audio_outbuf_size
= 10000;
792 uint8_t *audio_outbuf
= av_malloc( audio_outbuf_size
);
793 int audio_input_frame_size
= 0;
795 // AVFormat video buffer and frame count
797 int video_outbuf_size
= ( 1024 * 1024 );
798 uint8_t *video_outbuf
= av_malloc( video_outbuf_size
);
800 // Used for the frame properties
801 mlt_frame frame
= NULL
;
802 mlt_properties frame_properties
= NULL
;
805 mlt_deque queue
= mlt_properties_get_data( properties
, "frame_queue", NULL
);
806 sample_fifo fifo
= mlt_properties_get_data( properties
, "sample_fifo", NULL
);
808 // Need two av pictures for converting
809 AVFrame
*output
= NULL
;
810 AVFrame
*input
= alloc_picture( PIX_FMT_YUV422
, width
, height
);
812 // For receiving images from an mlt_frame
814 mlt_image_format img_fmt
= mlt_image_yuv422
;
816 // For receiving audio samples back from the fifo
817 int16_t *buffer
= av_malloc( 48000 * 2 );
820 // Allocate the context
821 AVFormatContext
*oc
= av_alloc_format_context( );
824 AVStream
*audio_st
= NULL
;
825 AVStream
*video_st
= NULL
;
828 double audio_pts
= 0;
829 double video_pts
= 0;
836 long int total_time
= 0;
838 // Determine the format
839 AVOutputFormat
*fmt
= NULL
;
840 char *filename
= mlt_properties_get( properties
, "target" );
841 char *format
= mlt_properties_get( properties
, "f" );
842 char *vcodec
= mlt_properties_get( properties
, "vcodec" );
843 char *acodec
= mlt_properties_get( properties
, "acodec" );
845 // Used to store and override codec ids
849 // Check for user selected format first
850 if ( format
!= NULL
)
851 fmt
= guess_format( format
, NULL
, NULL
);
853 // Otherwise check on the filename
854 if ( fmt
== NULL
&& filename
!= NULL
)
855 fmt
= guess_format( NULL
, filename
, NULL
);
857 // Otherwise default to mpeg
859 fmt
= guess_format( "mpeg", NULL
, NULL
);
861 // We need a filename - default to stdout?
862 if ( filename
== NULL
|| !strcmp( filename
, "" ) )
865 // Get the codec ids selected
866 audio_codec_id
= fmt
->audio_codec
;
867 video_codec_id
= fmt
->video_codec
;
869 // Check for audio codec overides
870 if ( acodec
!= NULL
)
872 AVCodec
*p
= avcodec_find_encoder_by_name( acodec
);
874 audio_codec_id
= p
->id
;
876 fprintf( stderr
, "%s: audio codec %s unrecognised - ignoring\n", __FILE__
, acodec
);
879 // Check for video codec overides
880 if ( vcodec
!= NULL
)
882 AVCodec
*p
= avcodec_find_encoder_by_name( vcodec
);
884 video_codec_id
= p
->id
;
886 fprintf( stderr
, "%s: video codec %s unrecognised - ignoring\n", __FILE__
, vcodec
);
893 tmp
= mlt_properties_get( properties
, "meta.attr.title.markup");
894 if (tmp
!= NULL
) snprintf( oc
->title
, sizeof(oc
->title
), "%s", tmp
);
896 tmp
= mlt_properties_get( properties
, "meta.attr.comment.markup");
897 if (tmp
!= NULL
) snprintf( oc
->comment
, sizeof(oc
->comment
), "%s", tmp
);
899 tmp
= mlt_properties_get( properties
, "meta.attr.author.markup");
900 if (tmp
!= NULL
) snprintf( oc
->author
, sizeof(oc
->author
), "%s", tmp
);
902 tmp
= mlt_properties_get( properties
, "meta.attr.copyright.markup");
903 if (tmp
!= NULL
) snprintf( oc
->copyright
, sizeof(oc
->copyright
), "%s", tmp
);
905 tmp
= mlt_properties_get( properties
, "meta.attr.album.markup");
906 if (tmp
!= NULL
) snprintf( oc
->album
, sizeof(oc
->album
), "%s", tmp
);
908 metavalue
= mlt_properties_get_int( properties
, "meta.attr.year.markup");
909 if (metavalue
!= 0) oc
->year
= metavalue
;
911 metavalue
= mlt_properties_get_int( properties
, "meta.attr.track.markup");
912 if (metavalue
!= 0) oc
->track
= metavalue
;
915 snprintf( oc
->filename
, sizeof(oc
->filename
), "%s", filename
);
917 // Add audio and video streams
918 if ( fmt
->video_codec
!= CODEC_ID_NONE
)
919 video_st
= add_video_stream( this, oc
, video_codec_id
);
920 if ( fmt
->audio_codec
!= CODEC_ID_NONE
)
921 audio_st
= add_audio_stream( this, oc
, audio_codec_id
);
923 // Set the parameters (even though we have none...)
924 if ( av_set_parameters(oc
, NULL
) >= 0 )
926 oc
->preload
= ( int )( mlt_properties_get_double( properties
, "muxpreload" ) * AV_TIME_BASE
);
927 oc
->max_delay
= ( int )( mlt_properties_get_double( properties
, "muxdelay" ) * AV_TIME_BASE
);
929 // Process properties as AVOptions
930 apply_properties( oc
, properties
, AV_OPT_FLAG_ENCODING_PARAM
);
932 if ( video_st
&& !open_video( oc
, video_st
) )
935 audio_input_frame_size
= open_audio( oc
, audio_st
, audio_outbuf_size
);
937 // Open the output file, if needed
938 if ( !( fmt
->flags
& AVFMT_NOFILE
) )
940 if ( url_fopen( &oc
->pb
, filename
, URL_WRONLY
) < 0 )
942 fprintf( stderr
, "%s: Could not open '%s'\n", __FILE__
, filename
);
943 mlt_properties_set_int( properties
, "running", 0 );
947 // Write the stream header, if any
948 if ( mlt_properties_get_int( properties
, "running" ) )
949 av_write_header( oc
);
953 fprintf( stderr
, "%s: Invalid output format parameters\n", __FILE__
);
954 mlt_properties_set_int( properties
, "running", 0 );
959 output
= alloc_picture( video_st
->codec
->pix_fmt
, width
, height
);
961 // Last check - need at least one stream
962 if ( audio_st
== NULL
&& video_st
== NULL
)
963 mlt_properties_set_int( properties
, "running", 0 );
965 // Get the starting time (can ignore the times above)
966 gettimeofday( &ante
, NULL
);
968 // Loop while running
969 while( mlt_properties_get_int( properties
, "running" ) && !terminated
)
972 frame
= mlt_consumer_rt_frame( this );
974 // Check that we have a frame to work with
977 // Increment frames despatched
980 // Default audio args
981 frame_properties
= MLT_FRAME_PROPERTIES( frame
);
983 // Check for the terminated condition
984 terminated
= terminate_on_pause
&& mlt_properties_get_double( frame_properties
, "_speed" ) == 0.0;
986 // Get audio and append to the fifo
987 if ( !terminated
&& audio_st
)
989 samples
= mlt_sample_calculator( fps
, frequency
, count
++ );
990 mlt_frame_get_audio( frame
, &pcm
, &aud_fmt
, &frequency
, &channels
, &samples
);
992 // Create the fifo if we don't have one
995 fifo
= sample_fifo_init( frequency
, channels
);
996 mlt_properties_set_data( properties
, "sample_fifo", fifo
, 0, ( mlt_destructor
)sample_fifo_close
, NULL
);
999 if ( mlt_properties_get_double( frame_properties
, "_speed" ) != 1.0 )
1000 memset( pcm
, 0, samples
* channels
* 2 );
1002 // Append the samples
1003 sample_fifo_append( fifo
, pcm
, samples
* channels
);
1004 total_time
+= ( samples
* 1000000 ) / frequency
;
1008 if ( !terminated
&& video_st
)
1009 mlt_deque_push_back( queue
, frame
);
1011 mlt_frame_close( frame
);
1014 // While we have stuff to process, process...
1018 audio_pts
= (double)audio_st
->pts
.val
* audio_st
->time_base
.num
/ audio_st
->time_base
.den
;
1023 video_pts
= (double)video_st
->pts
.val
* video_st
->time_base
.num
/ video_st
->time_base
.den
;
1027 // Write interleaved audio and video frames
1028 if ( !video_st
|| ( video_st
&& audio_st
&& audio_pts
< video_pts
) )
1030 if ( channels
* audio_input_frame_size
< sample_fifo_used( fifo
) )
1034 av_init_packet( &pkt
);
1036 c
= audio_st
->codec
;
1038 sample_fifo_fetch( fifo
, buffer
, channels
* audio_input_frame_size
);
1040 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, buffer
);
1041 // Write the compressed frame in the media file
1042 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1043 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, audio_st
->time_base
);
1044 pkt
.flags
|= PKT_FLAG_KEY
;
1045 pkt
.stream_index
= audio_st
->index
;
1046 pkt
.data
= audio_outbuf
;
1049 if ( av_interleaved_write_frame( oc
, &pkt
) != 0)
1050 fprintf( stderr
, "%s: Error while writing audio frame\n", __FILE__
);
1052 audio_pts
+= c
->frame_size
;
1059 else if ( video_st
)
1061 if ( mlt_deque_count( queue
) )
1066 frame
= mlt_deque_pop_front( queue
);
1067 frame_properties
= MLT_FRAME_PROPERTIES( frame
);
1069 c
= video_st
->codec
;
1071 if ( mlt_properties_get_int( frame_properties
, "rendered" ) )
1078 mlt_events_fire( properties
, "consumer-frame-show", frame
, NULL
);
1080 mlt_frame_get_image( frame
, &image
, &img_fmt
, &img_width
, &img_height
, 0 );
1084 // Convert the mlt frame to an AVPicture
1085 for ( i
= 0; i
< height
; i
++ )
1087 p
= input
->data
[ 0 ] + i
* input
->linesize
[ 0 ];
1096 // Do the colour space conversion
1098 struct SwsContext
*context
= sws_getContext( width
, height
, PIX_FMT_YUV422
,
1099 width
, height
, video_st
->codec
->pix_fmt
, SWS_FAST_BILINEAR
, NULL
, NULL
, NULL
);
1100 sws_scale( context
, input
->data
, input
->linesize
, 0, height
,
1101 output
->data
, output
->linesize
);
1102 sws_freeContext( context
);
1104 img_convert( ( AVPicture
* )output
, video_st
->codec
->pix_fmt
, ( AVPicture
* )input
, PIX_FMT_YUV422
, width
, height
);
1107 // Apply the alpha if applicable
1108 if ( video_st
->codec
->pix_fmt
== PIX_FMT_RGBA32
)
1110 uint8_t *alpha
= mlt_frame_get_alpha_mask( frame
);
1113 for ( i
= 0; i
< height
; i
++ )
1115 n
= ( width
+ 7 ) / 8;
1116 p
= output
->data
[ 0 ] + i
* output
->linesize
[ 0 ];
1124 case 0: do { *p
= *alpha
++; p
+= 4;
1125 case 7: *p
= *alpha
++; p
+= 4;
1126 case 6: *p
= *alpha
++; p
+= 4;
1127 case 5: *p
= *alpha
++; p
+= 4;
1128 case 4: *p
= *alpha
++; p
+= 4;
1129 case 3: *p
= *alpha
++; p
+= 4;
1130 case 2: *p
= *alpha
++; p
+= 4;
1131 case 1: *p
= *alpha
++; p
+= 4;
1139 if (oc
->oformat
->flags
& AVFMT_RAWPICTURE
)
1141 // raw video case. The API will change slightly in the near future for that
1143 av_init_packet(&pkt
);
1145 pkt
.flags
|= PKT_FLAG_KEY
;
1146 pkt
.stream_index
= video_st
->index
;
1147 pkt
.data
= (uint8_t *)output
;
1148 pkt
.size
= sizeof(AVPicture
);
1150 ret
= av_write_frame(oc
, &pkt
);
1151 video_pts
+= c
->frame_size
;
1156 output
->quality
= video_st
->quality
;
1158 // Set frame interlace hints
1159 output
->interlaced_frame
= !mlt_properties_get_int( frame_properties
, "progressive" );
1160 output
->top_field_first
= mlt_properties_get_int( frame_properties
, "top_field_first" );
1163 out_size
= avcodec_encode_video(c
, video_outbuf
, video_outbuf_size
, output
);
1165 // If zero size, it means the image was buffered
1169 av_init_packet( &pkt
);
1171 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1172 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, video_st
->time_base
);
1173 if( c
->coded_frame
&& c
->coded_frame
->key_frame
)
1174 pkt
.flags
|= PKT_FLAG_KEY
;
1175 pkt
.stream_index
= video_st
->index
;
1176 pkt
.data
= video_outbuf
;
1179 // write the compressed frame in the media file
1180 ret
= av_interleaved_write_frame(oc
, &pkt
);
1181 video_pts
+= c
->frame_size
;
1183 // Dual pass logging
1184 if ( mlt_properties_get_data( properties
, "_logfile", NULL
) && c
->stats_out
)
1185 fprintf( mlt_properties_get_data( properties
, "_logfile", NULL
), "%s", c
->stats_out
);
1189 fprintf( stderr
, "%s: error with video encode\n", __FILE__
);
1193 mlt_frame_close( frame
);
1202 if ( real_time_output
== 1 && frames
% 12 == 0 )
1204 long passed
= time_difference( &ante
);
1207 long pending
= ( ( ( long )sample_fifo_used( fifo
) * 1000 ) / frequency
) * 1000;
1210 if ( passed
< total_time
)
1212 long total
= ( total_time
- passed
);
1213 struct timespec t
= { total
/ 1000000, ( total
% 1000000 ) * 1000 };
1214 nanosleep( &t
, NULL
);
1220 if ( ! real_time_output
)
1223 if ( audio_st
&& audio_st
->codec
->frame_size
> 1 ) for (;;)
1225 AVCodecContext
*c
= audio_st
->codec
;
1227 av_init_packet( &pkt
);
1230 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1231 ( channels
* audio_input_frame_size
< sample_fifo_used( fifo
) ) )
1233 sample_fifo_fetch( fifo
, buffer
, channels
* audio_input_frame_size
);
1234 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, buffer
);
1236 if ( pkt
.size
<= 0 )
1237 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, NULL
);
1238 if ( pkt
.size
<= 0 )
1241 // Write the compressed frame in the media file
1242 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1243 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, audio_st
->time_base
);
1244 pkt
.flags
|= PKT_FLAG_KEY
;
1245 pkt
.stream_index
= audio_st
->index
;
1246 pkt
.data
= audio_outbuf
;
1247 if ( av_interleaved_write_frame( oc
, &pkt
) != 0 )
1249 fprintf( stderr
, "%s: Error while writing flushed audio frame\n", __FILE__
);
1255 if ( video_st
&& !( oc
->oformat
->flags
& AVFMT_RAWPICTURE
) ) for (;;)
1257 AVCodecContext
*c
= video_st
->codec
;
1259 av_init_packet( &pkt
);
1262 pkt
.size
= avcodec_encode_video( c
, video_outbuf
, video_outbuf_size
, NULL
);
1263 if ( pkt
.size
<= 0 )
1266 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1267 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, video_st
->time_base
);
1268 if( c
->coded_frame
&& c
->coded_frame
->key_frame
)
1269 pkt
.flags
|= PKT_FLAG_KEY
;
1270 pkt
.stream_index
= video_st
->index
;
1271 pkt
.data
= video_outbuf
;
1273 // write the compressed frame in the media file
1274 if ( av_interleaved_write_frame( oc
, &pkt
) != 0 )
1276 fprintf( stderr
, "%s: Error while writing flushed video frame\n". __FILE__
);
1285 close_video(oc
, video_st
);
1287 close_audio(oc
, audio_st
);
1289 // Write the trailer, if any
1290 av_write_trailer(oc
);
1293 for(i
= 0; i
< oc
->nb_streams
; i
++)
1294 av_freep(&oc
->streams
[i
]);
1296 // Close the output file
1297 if (!(fmt
->flags
& AVFMT_NOFILE
))
1298 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1301 url_fclose(&oc
->pb
);
1304 // Clean up input and output frames
1306 av_free( output
->data
[0] );
1308 av_free( input
->data
[0] );
1310 av_free( video_outbuf
);
1316 // Just in case we terminated on pause
1317 mlt_properties_set_int( properties
, "running", 0 );
1319 mlt_consumer_stopped( this );
1321 if ( mlt_properties_get_int( properties
, "pass" ) == 2 )
1323 // Remove the dual pass log file
1324 if ( mlt_properties_get( properties
, "_logfilename" ) )
1325 remove( mlt_properties_get( properties
, "_logfilename" ) );
1327 // Remove the x264 dual pass logs
1328 char *cwd
= getcwd( NULL
, 0 );
1329 char *file
= "x264_2pass.log";
1330 char *full
= malloc( strlen( cwd
) + strlen( file
) + 2 );
1331 sprintf( full
, "%s/%s", cwd
, file
);
1334 file
= "x264_2pass.log.temp";
1335 full
= malloc( strlen( cwd
) + strlen( file
) + 2 );
1336 sprintf( full
, "%s/%s", cwd
, file
);
1340 remove( "x264_2pass.log.temp" );
1346 /** Close the consumer.
1349 static void consumer_close( mlt_consumer
this )
1351 // Stop the consumer
1352 mlt_consumer_stop( this );
1355 mlt_consumer_close( this );