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 );
177 mlt_properties_set_int( properties
, "prefill", 1 );
179 // Set up start/stop/terminated callbacks
180 this->start
= consumer_start
;
181 this->stop
= consumer_stop
;
182 this->is_stopped
= consumer_is_stopped
;
189 /** Start the consumer.
192 static int consumer_start( mlt_consumer
this )
194 // Get the properties
195 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
198 // Report information about available muxers and codecs as YAML Tiny
199 char *s
= mlt_properties_get( properties
, "f" );
200 if ( s
&& strcmp( s
, "list" ) == 0 )
202 fprintf( stderr
, "---\nformats:\n" );
203 AVOutputFormat
*format
= NULL
;
204 while ( ( format
= av_oformat_next( format
) ) )
205 fprintf( stderr
, " - %s\n", format
->name
);
206 fprintf( stderr
, "...\n" );
209 s
= mlt_properties_get( properties
, "acodec" );
210 if ( s
&& strcmp( s
, "list" ) == 0 )
212 fprintf( stderr
, "---\naudio_codecs:\n" );
213 AVCodec
*codec
= NULL
;
214 while ( ( codec
= av_codec_next( codec
) ) )
215 if ( codec
->encode
&& codec
->type
== CODEC_TYPE_AUDIO
)
216 fprintf( stderr
, " - %s\n", codec
->name
);
217 fprintf( stderr
, "...\n" );
220 s
= mlt_properties_get( properties
, "vcodec" );
221 if ( s
&& strcmp( s
, "list" ) == 0 )
223 fprintf( stderr
, "---\nvideo_codecs:\n" );
224 AVCodec
*codec
= NULL
;
225 while ( ( codec
= av_codec_next( codec
) ) )
226 if ( codec
->encode
&& codec
->type
== CODEC_TYPE_VIDEO
)
227 fprintf( stderr
, " - %s\n", codec
->name
);
228 fprintf( stderr
, "...\n" );
232 // Check that we're not already running
233 if ( !error
&& !mlt_properties_get_int( properties
, "running" ) )
236 pthread_t
*thread
= calloc( 1, sizeof( pthread_t
) );
238 // Get the width and height
239 int width
= mlt_properties_get_int( properties
, "width" );
240 int height
= mlt_properties_get_int( properties
, "height" );
242 // Obtain the size property
243 char *size
= mlt_properties_get( properties
, "s" );
249 if ( sscanf( size
, "%dx%d", &tw
, &th
) == 2 && tw
> 0 && th
> 0 )
256 fprintf( stderr
, "%s: Invalid size property %s - ignoring.\n", __FILE__
, size
);
260 // Now ensure we honour the multiple of two requested by libavformat
261 width
= ( width
/ 2 ) * 2;
262 height
= ( height
/ 2 ) * 2;
263 mlt_properties_set_int( properties
, "width", width
);
264 mlt_properties_set_int( properties
, "height", height
);
266 // We need to set these on the profile as well because the s property is
267 // an alias to mlt properties that correspond to profile settings.
268 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
271 profile
->width
= width
;
272 profile
->height
= height
;
275 // Handle the ffmpeg command line "-r" property for frame rate
276 if ( mlt_properties_get( properties
, "r" ) )
278 double frame_rate
= mlt_properties_get_double( properties
, "r" );
279 AVRational rational
= av_d2q( frame_rate
, 255 );
280 mlt_properties_set_int( properties
, "frame_rate_num", rational
.num
);
281 mlt_properties_set_int( properties
, "frame_rate_den", rational
.den
);
284 profile
->frame_rate_num
= rational
.num
;
285 profile
->frame_rate_den
= rational
.den
;
286 mlt_properties_set_double( properties
, "fps", mlt_profile_fps( profile
) );
290 // Apply AVOptions that are synonyms for standard mlt_consumer options
291 if ( mlt_properties_get( properties
, "ac" ) )
292 mlt_properties_set_int( properties
, "channels", mlt_properties_get_int( properties
, "ac" ) );
293 if ( mlt_properties_get( properties
, "ar" ) )
294 mlt_properties_set_int( properties
, "frequency", mlt_properties_get_int( properties
, "ar" ) );
296 // Assign the thread to properties
297 mlt_properties_set_data( properties
, "thread", thread
, sizeof( pthread_t
), free
, NULL
);
299 // Set the running state
300 mlt_properties_set_int( properties
, "running", 1 );
303 pthread_create( thread
, NULL
, consumer_thread
, this );
308 /** Stop the consumer.
311 static int consumer_stop( mlt_consumer
this )
313 // Get the properties
314 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
316 // Check that we're running
317 if ( mlt_properties_get_int( properties
, "running" ) )
320 pthread_t
*thread
= mlt_properties_get_data( properties
, "thread", NULL
);
323 mlt_properties_set_int( properties
, "running", 0 );
325 // Wait for termination
326 pthread_join( *thread
, NULL
);
332 /** Determine if the consumer is stopped.
335 static int consumer_is_stopped( mlt_consumer
this )
337 // Get the properties
338 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
339 return !mlt_properties_get_int( properties
, "running" );
342 /** Process properties as AVOptions and apply to AV context obj
345 static void apply_properties( void *obj
, mlt_properties properties
, int flags
)
348 int count
= mlt_properties_count( properties
);
349 for ( i
= 0; i
< count
; i
++ )
351 const char *opt_name
= mlt_properties_get_name( properties
, i
);
352 const AVOption
*opt
= av_find_opt( obj
, opt_name
, NULL
, flags
, flags
);
354 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
355 av_set_string3( obj
, opt_name
, mlt_properties_get( properties
, opt_name
), 0, NULL
);
356 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
357 av_set_string2( obj
, opt_name
, mlt_properties_get( properties
, opt_name
), 0 );
359 av_set_string( obj
, opt_name
, mlt_properties_get( properties
, opt_name
) );
364 /** Add an audio output stream
367 static AVStream
*add_audio_stream( mlt_consumer
this, AVFormatContext
*oc
, int codec_id
)
369 // Get the properties
370 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
372 // Create a new stream
373 AVStream
*st
= av_new_stream( oc
, 1 );
375 // If created, then initialise from properties
378 AVCodecContext
*c
= st
->codec
;
380 // Establish defaults from AVOptions
381 avcodec_get_context_defaults2( c
, CODEC_TYPE_AUDIO
);
383 c
->codec_id
= codec_id
;
384 c
->codec_type
= CODEC_TYPE_AUDIO
;
386 // Setup multi-threading
387 int thread_count
= mlt_properties_get_int( properties
, "threads" );
388 if ( thread_count
== 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
389 thread_count
= atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
390 if ( thread_count
> 1 )
391 avcodec_thread_init( c
, thread_count
);
393 if (oc
->oformat
->flags
& AVFMT_GLOBALHEADER
)
394 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
396 // Allow the user to override the audio fourcc
397 if ( mlt_properties_get( properties
, "atag" ) )
400 char *arg
= mlt_properties_get( properties
, "atag" );
401 int tag
= strtol( arg
, &tail
, 0);
403 tag
= arg
[ 0 ] + ( arg
[ 1 ] << 8 ) + ( arg
[ 2 ] << 16 ) + ( arg
[ 3 ] << 24 );
407 // Process properties as AVOptions
408 apply_properties( c
, properties
, AV_OPT_FLAG_AUDIO_PARAM
| AV_OPT_FLAG_ENCODING_PARAM
);
410 int audio_qscale
= mlt_properties_get_int( properties
, "aq" );
411 if ( audio_qscale
> QSCALE_NONE
)
413 c
->flags
|= CODEC_FLAG_QSCALE
;
414 c
->global_quality
= st
->quality
= FF_QP2LAMBDA
* audio_qscale
;
417 // Set parameters controlled by MLT
418 c
->sample_rate
= mlt_properties_get_int( properties
, "frequency" );
419 c
->channels
= mlt_properties_get_int( properties
, "channels" );
421 if ( mlt_properties_get( properties
, "alang" ) != NULL
)
422 strncpy( st
->language
, mlt_properties_get( properties
, "alang" ), sizeof( st
->language
) );
426 fprintf( stderr
, "%s: Could not allocate a stream for audio\n", __FILE__
);
432 static int open_audio( AVFormatContext
*oc
, AVStream
*st
, int audio_outbuf_size
)
434 // We will return the audio input size from here
435 int audio_input_frame_size
= 0;
438 AVCodecContext
*c
= st
->codec
;
441 AVCodec
*codec
= avcodec_find_encoder( c
->codec_id
);
443 // Continue if codec found and we can open it
444 if ( codec
!= NULL
&& avcodec_open( c
, codec
) >= 0 )
446 // ugly hack for PCM codecs (will be removed ASAP with new PCM
447 // support to compute the input frame size in samples
448 if ( c
->frame_size
<= 1 )
450 audio_input_frame_size
= audio_outbuf_size
/ c
->channels
;
451 switch(st
->codec
->codec_id
)
453 case CODEC_ID_PCM_S16LE
:
454 case CODEC_ID_PCM_S16BE
:
455 case CODEC_ID_PCM_U16LE
:
456 case CODEC_ID_PCM_U16BE
:
457 audio_input_frame_size
>>= 1;
465 audio_input_frame_size
= c
->frame_size
;
468 // Some formats want stream headers to be seperate (hmm)
469 if( !strcmp( oc
->oformat
->name
, "mp4" ) ||
470 !strcmp( oc
->oformat
->name
, "mov" ) ||
471 !strcmp( oc
->oformat
->name
, "3gp" ) )
472 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
476 fprintf( stderr
, "%s: Unable to encode audio - disabling audio output.\n", __FILE__
);
479 return audio_input_frame_size
;
482 static void close_audio( AVFormatContext
*oc
, AVStream
*st
)
484 avcodec_close( st
->codec
);
487 /** Add a video output stream
490 static AVStream
*add_video_stream( mlt_consumer
this, AVFormatContext
*oc
, int codec_id
)
492 // Get the properties
493 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
495 // Create a new stream
496 AVStream
*st
= av_new_stream( oc
, 0 );
500 char *pix_fmt
= mlt_properties_get( properties
, "pix_fmt" );
501 AVCodecContext
*c
= st
->codec
;
503 // Establish defaults from AVOptions
504 avcodec_get_context_defaults2( c
, CODEC_TYPE_VIDEO
);
506 c
->codec_id
= codec_id
;
507 c
->codec_type
= CODEC_TYPE_VIDEO
;
509 // Setup multi-threading
510 int thread_count
= mlt_properties_get_int( properties
, "threads" );
511 if ( thread_count
== 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
512 thread_count
= atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
513 if ( thread_count
> 1 )
514 avcodec_thread_init( c
, thread_count
);
516 // Process properties as AVOptions
517 apply_properties( c
, properties
, AV_OPT_FLAG_VIDEO_PARAM
| AV_OPT_FLAG_ENCODING_PARAM
);
519 // Set options controlled by MLT
520 c
->width
= mlt_properties_get_int( properties
, "width" );
521 c
->height
= mlt_properties_get_int( properties
, "height" );
522 c
->time_base
.num
= mlt_properties_get_int( properties
, "frame_rate_den" );
523 c
->time_base
.den
= mlt_properties_get_int( properties
, "frame_rate_num" );
524 if ( st
->time_base
.den
== 0 )
525 st
->time_base
= c
->time_base
;
526 c
->pix_fmt
= pix_fmt ?
avcodec_get_pix_fmt( pix_fmt
) : PIX_FMT_YUV420P
;
528 if ( mlt_properties_get( properties
, "aspect" ) )
530 // "-aspect" on ffmpeg command line is display aspect ratio
531 double ar
= mlt_properties_get_double( properties
, "aspect" );
532 AVRational rational
= av_d2q( ar
, 255 );
534 // Update the profile and properties as well since this is an alias
535 // for mlt properties that correspond to profile settings
536 mlt_properties_set_int( properties
, "display_aspect_num", rational
.num
);
537 mlt_properties_set_int( properties
, "display_aspect_den", rational
.den
);
538 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
541 profile
->display_aspect_num
= rational
.num
;
542 profile
->display_aspect_den
= rational
.den
;
543 mlt_properties_set_double( properties
, "display_ratio", mlt_profile_dar( profile
) );
546 // Now compute the sample aspect ratio
547 rational
= av_d2q( ar
* c
->height
/ c
->width
, 255 );
548 c
->sample_aspect_ratio
= rational
;
549 // Update the profile and properties as well since this is an alias
550 // for mlt properties that correspond to profile settings
551 mlt_properties_set_int( properties
, "sample_aspect_num", rational
.num
);
552 mlt_properties_set_int( properties
, "sample_aspect_den", rational
.den
);
555 profile
->sample_aspect_num
= rational
.num
;
556 profile
->sample_aspect_den
= rational
.den
;
557 mlt_properties_set_double( properties
, "aspect_ratio", mlt_profile_sar( profile
) );
562 c
->sample_aspect_ratio
.num
= mlt_properties_get_int( properties
, "sample_aspect_num" );
563 c
->sample_aspect_ratio
.den
= mlt_properties_get_int( properties
, "sample_aspect_den" );
565 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
566 st
->sample_aspect_ratio
= c
->sample_aspect_ratio
;
569 if ( mlt_properties_get_double( properties
, "qscale" ) > 0 )
571 c
->flags
|= CODEC_FLAG_QSCALE
;
572 st
->quality
= FF_QP2LAMBDA
* mlt_properties_get_double( properties
, "qscale" );
575 // Allow the user to override the video fourcc
576 if ( mlt_properties_get( properties
, "vtag" ) )
579 const char *arg
= mlt_properties_get( properties
, "vtag" );
580 int tag
= strtol( arg
, &tail
, 0);
582 tag
= arg
[ 0 ] + ( arg
[ 1 ] << 8 ) + ( arg
[ 2 ] << 16 ) + ( arg
[ 3 ] << 24 );
586 // Some formats want stream headers to be seperate
587 if ( oc
->oformat
->flags
& AVFMT_GLOBALHEADER
)
588 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
590 // Translate these standard mlt consumer properties to ffmpeg
591 if ( mlt_properties_get_int( properties
, "progressive" ) == 0 &&
592 mlt_properties_get_int( properties
, "deinterlace" ) == 0 )
594 if ( mlt_properties_get_int( properties
, "ildct" ) )
595 c
->flags
|= CODEC_FLAG_INTERLACED_DCT
;
596 if ( mlt_properties_get_int( properties
, "ilme" ) )
597 c
->flags
|= CODEC_FLAG_INTERLACED_ME
;
600 // parse the ratecontrol override string
602 char *rc_override
= mlt_properties_get( properties
, "rc_override" );
603 for ( i
= 0; rc_override
; i
++ )
606 int e
= sscanf( rc_override
, "%d,%d,%d", &start
, &end
, &q
);
608 fprintf( stderr
, "%s: Error parsing rc_override\n", __FILE__
);
609 c
->rc_override
= av_realloc( c
->rc_override
, sizeof( RcOverride
) * ( i
+ 1 ) );
610 c
->rc_override
[i
].start_frame
= start
;
611 c
->rc_override
[i
].end_frame
= end
;
614 c
->rc_override
[i
].qscale
= q
;
615 c
->rc_override
[i
].quality_factor
= 1.0;
619 c
->rc_override
[i
].qscale
= 0;
620 c
->rc_override
[i
].quality_factor
= -q
/ 100.0;
622 rc_override
= strchr( rc_override
, '/' );
626 c
->rc_override_count
= i
;
627 if ( !c
->rc_initial_buffer_occupancy
)
628 c
->rc_initial_buffer_occupancy
= c
->rc_buffer_size
* 3/4;
629 c
->intra_dc_precision
= mlt_properties_get_int( properties
, "dc" ) - 8;
632 i
= mlt_properties_get_int( properties
, "pass" );
634 c
->flags
|= CODEC_FLAG_PASS1
;
636 c
->flags
|= CODEC_FLAG_PASS2
;
637 if ( codec_id
!= CODEC_ID_H264
&& ( c
->flags
& ( CODEC_FLAG_PASS1
| CODEC_FLAG_PASS2
) ) )
639 char logfilename
[1024];
644 snprintf( logfilename
, sizeof(logfilename
), "%s_2pass.log",
645 mlt_properties_get( properties
, "passlogfile" ) ?
mlt_properties_get( properties
, "passlogfile" ) : mlt_properties_get( properties
, "target" ) );
646 if ( c
->flags
& CODEC_FLAG_PASS1
)
648 f
= fopen( logfilename
, "w" );
650 perror( logfilename
);
652 mlt_properties_set_data( properties
, "_logfile", f
, 0, ( mlt_destructor
)fclose
, NULL
);
656 /* read the log file */
657 f
= fopen( logfilename
, "r" );
664 mlt_properties_set( properties
, "_logfilename", logfilename
);
665 fseek( f
, 0, SEEK_END
);
667 fseek( f
, 0, SEEK_SET
);
668 logbuffer
= av_malloc( size
+ 1 );
670 fprintf( stderr
, "%s: Could not allocate log buffer\n", __FILE__
);
673 size
= fread( logbuffer
, 1, size
, f
);
675 logbuffer
[size
] = '\0';
676 c
->stats_in
= logbuffer
;
677 mlt_properties_set_data( properties
, "_logbuffer", logbuffer
, 0, ( mlt_destructor
)av_free
, NULL
);
685 fprintf( stderr
, "%s: Could not allocate a stream for video\n", __FILE__
);
691 static AVFrame
*alloc_picture( int pix_fmt
, int width
, int height
)
694 AVFrame
*picture
= avcodec_alloc_frame();
696 // Determine size of the
697 int size
= avpicture_get_size(pix_fmt
, width
, height
);
699 // Allocate the picture buf
700 uint8_t *picture_buf
= av_malloc(size
);
702 // If we have both, then fill the image
703 if ( picture
!= NULL
&& picture_buf
!= NULL
)
705 // Fill the frame with the allocated buffer
706 avpicture_fill( (AVPicture
*)picture
, picture_buf
, pix_fmt
, width
, height
);
710 // Something failed - clean up what we can
712 av_free( picture_buf
);
719 static int open_video(AVFormatContext
*oc
, AVStream
*st
)
722 AVCodecContext
*video_enc
= st
->codec
;
724 // find the video encoder
725 AVCodec
*codec
= avcodec_find_encoder( video_enc
->codec_id
);
727 if( codec
&& codec
->pix_fmts
)
729 const enum PixelFormat
*p
= codec
->pix_fmts
;
732 if( *p
== video_enc
->pix_fmt
)
736 video_enc
->pix_fmt
= codec
->pix_fmts
[ 0 ];
739 // Open the codec safely
740 return codec
!= NULL
&& avcodec_open( video_enc
, codec
) >= 0;
743 void close_video(AVFormatContext
*oc
, AVStream
*st
)
745 avcodec_close(st
->codec
);
748 static inline long time_difference( struct timeval
*time1
)
750 struct timeval time2
;
751 gettimeofday( &time2
, NULL
);
752 return time2
.tv_sec
* 1000000 + time2
.tv_usec
- time1
->tv_sec
* 1000000 - time1
->tv_usec
;
755 /** The main thread - the argument is simply the consumer.
758 static void *consumer_thread( void *arg
)
760 // Map the argument to the object
761 mlt_consumer
this = arg
;
763 // Get the properties
764 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
766 // Get the terminate on pause property
767 int terminate_on_pause
= mlt_properties_get_int( properties
, "terminate_on_pause" );
770 // Determine if feed is slow (for realtime stuff)
771 int real_time_output
= mlt_properties_get_int( properties
, "real_time" );
776 // Get the frame rate
777 double fps
= mlt_properties_get_double( properties
, "fps" );
779 // Get width and height
780 int width
= mlt_properties_get_int( properties
, "width" );
781 int height
= mlt_properties_get_int( properties
, "height" );
782 int img_width
= width
;
783 int img_height
= height
;
785 // Get default audio properties
786 mlt_audio_format aud_fmt
= mlt_audio_pcm
;
787 int channels
= mlt_properties_get_int( properties
, "channels" );
788 int frequency
= mlt_properties_get_int( properties
, "frequency" );
792 // AVFormat audio buffer and frame size
793 int audio_outbuf_size
= 10000;
794 uint8_t *audio_outbuf
= av_malloc( audio_outbuf_size
);
795 int audio_input_frame_size
= 0;
797 // AVFormat video buffer and frame count
799 int video_outbuf_size
= ( 1024 * 1024 );
800 uint8_t *video_outbuf
= av_malloc( video_outbuf_size
);
802 // Used for the frame properties
803 mlt_frame frame
= NULL
;
804 mlt_properties frame_properties
= NULL
;
807 mlt_deque queue
= mlt_properties_get_data( properties
, "frame_queue", NULL
);
808 sample_fifo fifo
= mlt_properties_get_data( properties
, "sample_fifo", NULL
);
810 // Need two av pictures for converting
811 AVFrame
*output
= NULL
;
812 AVFrame
*input
= alloc_picture( PIX_FMT_YUV422
, width
, height
);
814 // For receiving images from an mlt_frame
816 mlt_image_format img_fmt
= mlt_image_yuv422
;
818 // For receiving audio samples back from the fifo
819 int16_t *buffer
= av_malloc( 48000 * 2 );
822 // Allocate the context
823 AVFormatContext
*oc
= av_alloc_format_context( );
826 AVStream
*audio_st
= NULL
;
827 AVStream
*video_st
= NULL
;
830 double audio_pts
= 0;
831 double video_pts
= 0;
838 long int total_time
= 0;
840 // Determine the format
841 AVOutputFormat
*fmt
= NULL
;
842 char *filename
= mlt_properties_get( properties
, "target" );
843 char *format
= mlt_properties_get( properties
, "f" );
844 char *vcodec
= mlt_properties_get( properties
, "vcodec" );
845 char *acodec
= mlt_properties_get( properties
, "acodec" );
847 // Used to store and override codec ids
851 // Check for user selected format first
852 if ( format
!= NULL
)
853 fmt
= guess_format( format
, NULL
, NULL
);
855 // Otherwise check on the filename
856 if ( fmt
== NULL
&& filename
!= NULL
)
857 fmt
= guess_format( NULL
, filename
, NULL
);
859 // Otherwise default to mpeg
861 fmt
= guess_format( "mpeg", NULL
, NULL
);
863 // We need a filename - default to stdout?
864 if ( filename
== NULL
|| !strcmp( filename
, "" ) )
867 // Get the codec ids selected
868 audio_codec_id
= fmt
->audio_codec
;
869 video_codec_id
= fmt
->video_codec
;
871 // Check for audio codec overides
872 if ( ( acodec
&& strcmp( "acodec", "none" ) == 0 ) || mlt_properties_get_int( properties
, "an" ) )
873 audio_codec_id
= CODEC_ID_NONE
;
876 AVCodec
*p
= avcodec_find_encoder_by_name( acodec
);
878 audio_codec_id
= p
->id
;
880 fprintf( stderr
, "%s: audio codec %s unrecognised - ignoring\n", __FILE__
, acodec
);
883 // Check for video codec overides
884 if ( ( vcodec
&& strcmp( "vcodec", "none" ) == 0 ) || mlt_properties_get_int( properties
, "vn" ) )
885 video_codec_id
= CODEC_ID_NONE
;
888 AVCodec
*p
= avcodec_find_encoder_by_name( vcodec
);
890 video_codec_id
= p
->id
;
892 fprintf( stderr
, "%s: video codec %s unrecognised - ignoring\n", __FILE__
, vcodec
);
899 tmp
= mlt_properties_get( properties
, "meta.attr.title.markup");
900 if (tmp
!= NULL
) snprintf( oc
->title
, sizeof(oc
->title
), "%s", tmp
);
902 tmp
= mlt_properties_get( properties
, "meta.attr.comment.markup");
903 if (tmp
!= NULL
) snprintf( oc
->comment
, sizeof(oc
->comment
), "%s", tmp
);
905 tmp
= mlt_properties_get( properties
, "meta.attr.author.markup");
906 if (tmp
!= NULL
) snprintf( oc
->author
, sizeof(oc
->author
), "%s", tmp
);
908 tmp
= mlt_properties_get( properties
, "meta.attr.copyright.markup");
909 if (tmp
!= NULL
) snprintf( oc
->copyright
, sizeof(oc
->copyright
), "%s", tmp
);
911 tmp
= mlt_properties_get( properties
, "meta.attr.album.markup");
912 if (tmp
!= NULL
) snprintf( oc
->album
, sizeof(oc
->album
), "%s", tmp
);
914 metavalue
= mlt_properties_get_int( properties
, "meta.attr.year.markup");
915 if (metavalue
!= 0) oc
->year
= metavalue
;
917 metavalue
= mlt_properties_get_int( properties
, "meta.attr.track.markup");
918 if (metavalue
!= 0) oc
->track
= metavalue
;
921 snprintf( oc
->filename
, sizeof(oc
->filename
), "%s", filename
);
923 // Add audio and video streams
924 if ( video_codec_id
!= CODEC_ID_NONE
)
925 video_st
= add_video_stream( this, oc
, video_codec_id
);
926 if ( audio_codec_id
!= CODEC_ID_NONE
)
927 audio_st
= add_audio_stream( this, oc
, audio_codec_id
);
929 // Set the parameters (even though we have none...)
930 if ( av_set_parameters(oc
, NULL
) >= 0 )
932 oc
->preload
= ( int )( mlt_properties_get_double( properties
, "muxpreload" ) * AV_TIME_BASE
);
933 oc
->max_delay
= ( int )( mlt_properties_get_double( properties
, "muxdelay" ) * AV_TIME_BASE
);
935 // Process properties as AVOptions
936 apply_properties( oc
, properties
, AV_OPT_FLAG_ENCODING_PARAM
);
938 if ( video_st
&& !open_video( oc
, video_st
) )
941 audio_input_frame_size
= open_audio( oc
, audio_st
, audio_outbuf_size
);
943 // Open the output file, if needed
944 if ( !( fmt
->flags
& AVFMT_NOFILE
) )
946 if ( url_fopen( &oc
->pb
, filename
, URL_WRONLY
) < 0 )
948 fprintf( stderr
, "%s: Could not open '%s'\n", __FILE__
, filename
);
949 mlt_properties_set_int( properties
, "running", 0 );
953 // Write the stream header, if any
954 if ( mlt_properties_get_int( properties
, "running" ) )
955 av_write_header( oc
);
959 fprintf( stderr
, "%s: Invalid output format parameters\n", __FILE__
);
960 mlt_properties_set_int( properties
, "running", 0 );
965 output
= alloc_picture( video_st
->codec
->pix_fmt
, width
, height
);
967 // Last check - need at least one stream
968 if ( audio_st
== NULL
&& video_st
== NULL
)
969 mlt_properties_set_int( properties
, "running", 0 );
971 // Get the starting time (can ignore the times above)
972 gettimeofday( &ante
, NULL
);
974 // Loop while running
975 while( mlt_properties_get_int( properties
, "running" ) && !terminated
)
978 frame
= mlt_consumer_rt_frame( this );
980 // Check that we have a frame to work with
983 // Increment frames despatched
986 // Default audio args
987 frame_properties
= MLT_FRAME_PROPERTIES( frame
);
989 // Check for the terminated condition
990 terminated
= terminate_on_pause
&& mlt_properties_get_double( frame_properties
, "_speed" ) == 0.0;
992 // Get audio and append to the fifo
993 if ( !terminated
&& audio_st
)
995 samples
= mlt_sample_calculator( fps
, frequency
, count
++ );
996 mlt_frame_get_audio( frame
, &pcm
, &aud_fmt
, &frequency
, &channels
, &samples
);
998 // Create the fifo if we don't have one
1001 fifo
= sample_fifo_init( frequency
, channels
);
1002 mlt_properties_set_data( properties
, "sample_fifo", fifo
, 0, ( mlt_destructor
)sample_fifo_close
, NULL
);
1005 if ( mlt_properties_get_double( frame_properties
, "_speed" ) != 1.0 )
1006 memset( pcm
, 0, samples
* channels
* 2 );
1008 // Append the samples
1009 sample_fifo_append( fifo
, pcm
, samples
* channels
);
1010 total_time
+= ( samples
* 1000000 ) / frequency
;
1014 if ( !terminated
&& video_st
)
1015 mlt_deque_push_back( queue
, frame
);
1017 mlt_frame_close( frame
);
1020 // While we have stuff to process, process...
1024 audio_pts
= (double)audio_st
->pts
.val
* audio_st
->time_base
.num
/ audio_st
->time_base
.den
;
1029 video_pts
= (double)video_st
->pts
.val
* video_st
->time_base
.num
/ video_st
->time_base
.den
;
1033 // Write interleaved audio and video frames
1034 if ( !video_st
|| ( video_st
&& audio_st
&& audio_pts
< video_pts
) )
1036 if ( channels
* audio_input_frame_size
< sample_fifo_used( fifo
) )
1040 av_init_packet( &pkt
);
1042 c
= audio_st
->codec
;
1044 sample_fifo_fetch( fifo
, buffer
, channels
* audio_input_frame_size
);
1046 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, buffer
);
1047 // Write the compressed frame in the media file
1048 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1049 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, audio_st
->time_base
);
1050 pkt
.flags
|= PKT_FLAG_KEY
;
1051 pkt
.stream_index
= audio_st
->index
;
1052 pkt
.data
= audio_outbuf
;
1055 if ( av_interleaved_write_frame( oc
, &pkt
) != 0)
1056 fprintf( stderr
, "%s: Error while writing audio frame\n", __FILE__
);
1058 audio_pts
+= c
->frame_size
;
1065 else if ( video_st
)
1067 if ( mlt_deque_count( queue
) )
1072 frame
= mlt_deque_pop_front( queue
);
1073 frame_properties
= MLT_FRAME_PROPERTIES( frame
);
1075 c
= video_st
->codec
;
1077 if ( mlt_properties_get_int( frame_properties
, "rendered" ) )
1084 mlt_events_fire( properties
, "consumer-frame-show", frame
, NULL
);
1086 mlt_frame_get_image( frame
, &image
, &img_fmt
, &img_width
, &img_height
, 0 );
1090 // Convert the mlt frame to an AVPicture
1091 for ( i
= 0; i
< height
; i
++ )
1093 p
= input
->data
[ 0 ] + i
* input
->linesize
[ 0 ];
1102 // Do the colour space conversion
1104 struct SwsContext
*context
= sws_getContext( width
, height
, PIX_FMT_YUV422
,
1105 width
, height
, video_st
->codec
->pix_fmt
, SWS_FAST_BILINEAR
, NULL
, NULL
, NULL
);
1106 sws_scale( context
, input
->data
, input
->linesize
, 0, height
,
1107 output
->data
, output
->linesize
);
1108 sws_freeContext( context
);
1110 img_convert( ( AVPicture
* )output
, video_st
->codec
->pix_fmt
, ( AVPicture
* )input
, PIX_FMT_YUV422
, width
, height
);
1113 // Apply the alpha if applicable
1114 if ( video_st
->codec
->pix_fmt
== PIX_FMT_RGBA32
)
1116 uint8_t *alpha
= mlt_frame_get_alpha_mask( frame
);
1119 for ( i
= 0; i
< height
; i
++ )
1121 n
= ( width
+ 7 ) / 8;
1122 p
= output
->data
[ 0 ] + i
* output
->linesize
[ 0 ];
1130 case 0: do { *p
= *alpha
++; p
+= 4;
1131 case 7: *p
= *alpha
++; p
+= 4;
1132 case 6: *p
= *alpha
++; p
+= 4;
1133 case 5: *p
= *alpha
++; p
+= 4;
1134 case 4: *p
= *alpha
++; p
+= 4;
1135 case 3: *p
= *alpha
++; p
+= 4;
1136 case 2: *p
= *alpha
++; p
+= 4;
1137 case 1: *p
= *alpha
++; p
+= 4;
1145 if (oc
->oformat
->flags
& AVFMT_RAWPICTURE
)
1147 // raw video case. The API will change slightly in the near future for that
1149 av_init_packet(&pkt
);
1151 pkt
.flags
|= PKT_FLAG_KEY
;
1152 pkt
.stream_index
= video_st
->index
;
1153 pkt
.data
= (uint8_t *)output
;
1154 pkt
.size
= sizeof(AVPicture
);
1156 ret
= av_write_frame(oc
, &pkt
);
1157 video_pts
+= c
->frame_size
;
1162 output
->quality
= video_st
->quality
;
1164 // Set frame interlace hints
1165 output
->interlaced_frame
= !mlt_properties_get_int( frame_properties
, "progressive" );
1166 output
->top_field_first
= mlt_properties_get_int( frame_properties
, "top_field_first" );
1169 out_size
= avcodec_encode_video(c
, video_outbuf
, video_outbuf_size
, output
);
1171 // If zero size, it means the image was buffered
1175 av_init_packet( &pkt
);
1177 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1178 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, video_st
->time_base
);
1179 if( c
->coded_frame
&& c
->coded_frame
->key_frame
)
1180 pkt
.flags
|= PKT_FLAG_KEY
;
1181 pkt
.stream_index
= video_st
->index
;
1182 pkt
.data
= video_outbuf
;
1185 // write the compressed frame in the media file
1186 ret
= av_interleaved_write_frame(oc
, &pkt
);
1187 video_pts
+= c
->frame_size
;
1189 // Dual pass logging
1190 if ( mlt_properties_get_data( properties
, "_logfile", NULL
) && c
->stats_out
)
1191 fprintf( mlt_properties_get_data( properties
, "_logfile", NULL
), "%s", c
->stats_out
);
1195 fprintf( stderr
, "%s: error with video encode\n", __FILE__
);
1199 mlt_frame_close( frame
);
1208 if ( real_time_output
== 1 && frames
% 12 == 0 )
1210 long passed
= time_difference( &ante
);
1213 long pending
= ( ( ( long )sample_fifo_used( fifo
) * 1000 ) / frequency
) * 1000;
1216 if ( passed
< total_time
)
1218 long total
= ( total_time
- passed
);
1219 struct timespec t
= { total
/ 1000000, ( total
% 1000000 ) * 1000 };
1220 nanosleep( &t
, NULL
);
1226 if ( ! real_time_output
)
1229 if ( audio_st
&& audio_st
->codec
->frame_size
> 1 ) for (;;)
1231 AVCodecContext
*c
= audio_st
->codec
;
1233 av_init_packet( &pkt
);
1236 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1237 ( channels
* audio_input_frame_size
< sample_fifo_used( fifo
) ) )
1239 sample_fifo_fetch( fifo
, buffer
, channels
* audio_input_frame_size
);
1240 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, buffer
);
1242 if ( pkt
.size
<= 0 )
1243 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, NULL
);
1244 if ( pkt
.size
<= 0 )
1247 // Write the compressed frame in the media file
1248 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1249 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, audio_st
->time_base
);
1250 pkt
.flags
|= PKT_FLAG_KEY
;
1251 pkt
.stream_index
= audio_st
->index
;
1252 pkt
.data
= audio_outbuf
;
1253 if ( av_interleaved_write_frame( oc
, &pkt
) != 0 )
1255 fprintf( stderr
, "%s: Error while writing flushed audio frame\n", __FILE__
);
1261 if ( video_st
&& !( oc
->oformat
->flags
& AVFMT_RAWPICTURE
) ) for (;;)
1263 AVCodecContext
*c
= video_st
->codec
;
1265 av_init_packet( &pkt
);
1268 pkt
.size
= avcodec_encode_video( c
, video_outbuf
, video_outbuf_size
, NULL
);
1269 if ( pkt
.size
<= 0 )
1272 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1273 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, video_st
->time_base
);
1274 if( c
->coded_frame
&& c
->coded_frame
->key_frame
)
1275 pkt
.flags
|= PKT_FLAG_KEY
;
1276 pkt
.stream_index
= video_st
->index
;
1277 pkt
.data
= video_outbuf
;
1279 // write the compressed frame in the media file
1280 if ( av_interleaved_write_frame( oc
, &pkt
) != 0 )
1282 fprintf( stderr
, "%s: Error while writing flushed video frame\n". __FILE__
);
1291 close_video(oc
, video_st
);
1293 close_audio(oc
, audio_st
);
1295 // Write the trailer, if any
1296 av_write_trailer(oc
);
1299 for(i
= 0; i
< oc
->nb_streams
; i
++)
1300 av_freep(&oc
->streams
[i
]);
1302 // Close the output file
1303 if (!(fmt
->flags
& AVFMT_NOFILE
))
1304 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1307 url_fclose(&oc
->pb
);
1310 // Clean up input and output frames
1312 av_free( output
->data
[0] );
1314 av_free( input
->data
[0] );
1316 av_free( video_outbuf
);
1322 // Just in case we terminated on pause
1323 mlt_properties_set_int( properties
, "running", 0 );
1325 mlt_consumer_stopped( this );
1327 if ( mlt_properties_get_int( properties
, "pass" ) == 2 )
1329 // Remove the dual pass log file
1330 if ( mlt_properties_get( properties
, "_logfilename" ) )
1331 remove( mlt_properties_get( properties
, "_logfilename" ) );
1333 // Remove the x264 dual pass logs
1334 char *cwd
= getcwd( NULL
, 0 );
1335 char *file
= "x264_2pass.log";
1336 char *full
= malloc( strlen( cwd
) + strlen( file
) + 2 );
1337 sprintf( full
, "%s/%s", cwd
, file
);
1340 file
= "x264_2pass.log.temp";
1341 full
= malloc( strlen( cwd
) + strlen( file
) + 2 );
1342 sprintf( full
, "%s/%s", cwd
, file
);
1346 remove( "x264_2pass.log.temp" );
1352 /** Close the consumer.
1355 static void consumer_close( mlt_consumer
this )
1357 // Stop the consumer
1358 mlt_consumer_stop( this );
1361 mlt_consumer_close( this );