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 );
196 // Check that we're not already running
197 if ( !mlt_properties_get_int( properties
, "running" ) )
200 pthread_t
*thread
= calloc( 1, sizeof( pthread_t
) );
202 // Get the width and height
203 int width
= mlt_properties_get_int( properties
, "width" );
204 int height
= mlt_properties_get_int( properties
, "height" );
206 // Obtain the size property
207 char *size
= mlt_properties_get( properties
, "s" );
213 if ( sscanf( size
, "%dx%d", &tw
, &th
) == 2 && tw
> 0 && th
> 0 )
220 fprintf( stderr
, "%s: Invalid size property %s - ignoring.\n", __FILE__
, size
);
224 // Now ensure we honour the multiple of two requested by libavformat
225 width
= ( width
/ 2 ) * 2;
226 height
= ( height
/ 2 ) * 2;
227 mlt_properties_set_int( properties
, "width", width
);
228 mlt_properties_set_int( properties
, "height", height
);
230 // We need to set these on the profile as well because the s property is
231 // an alias to mlt properties that correspond to profile settings.
232 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
235 profile
->width
= width
;
236 profile
->height
= height
;
239 // Handle the ffmpeg command line "-r" property for frame rate
240 if ( mlt_properties_get( properties
, "r" ) )
242 double frame_rate
= mlt_properties_get_double( properties
, "r" );
243 AVRational rational
= av_d2q( frame_rate
, 255 );
244 mlt_properties_set_int( properties
, "frame_rate_num", rational
.num
);
245 mlt_properties_set_int( properties
, "frame_rate_den", rational
.den
);
248 profile
->frame_rate_num
= rational
.num
;
249 profile
->frame_rate_den
= rational
.den
;
250 mlt_properties_set_double( properties
, "fps", mlt_profile_fps( profile
) );
254 // Apply AVOptions that are synonyms for standard mlt_consumer options
255 if ( mlt_properties_get( properties
, "ac" ) )
256 mlt_properties_set_int( properties
, "channels", mlt_properties_get_int( properties
, "ac" ) );
257 if ( mlt_properties_get( properties
, "ar" ) )
258 mlt_properties_set_int( properties
, "frequency", mlt_properties_get_int( properties
, "ar" ) );
260 // Assign the thread to properties
261 mlt_properties_set_data( properties
, "thread", thread
, sizeof( pthread_t
), free
, NULL
);
263 // Set the running state
264 mlt_properties_set_int( properties
, "running", 1 );
267 pthread_create( thread
, NULL
, consumer_thread
, this );
272 /** Stop the consumer.
275 static int consumer_stop( mlt_consumer
this )
277 // Get the properties
278 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
280 // Check that we're running
281 if ( mlt_properties_get_int( properties
, "running" ) )
284 pthread_t
*thread
= mlt_properties_get_data( properties
, "thread", NULL
);
287 mlt_properties_set_int( properties
, "running", 0 );
289 // Wait for termination
290 pthread_join( *thread
, NULL
);
296 /** Determine if the consumer is stopped.
299 static int consumer_is_stopped( mlt_consumer
this )
301 // Get the properties
302 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
303 return !mlt_properties_get_int( properties
, "running" );
306 /** Process properties as AVOptions and apply to AV context obj
309 static void apply_properties( void *obj
, mlt_properties properties
, int flags
)
312 int count
= mlt_properties_count( properties
);
313 for ( i
= 0; i
< count
; i
++ )
315 const char *opt_name
= mlt_properties_get_name( properties
, i
);
316 const AVOption
*opt
= av_find_opt( obj
, opt_name
, NULL
, flags
, flags
);
318 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
319 av_set_string3( obj
, opt_name
, mlt_properties_get( properties
, opt_name
), 0, NULL
);
320 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
321 av_set_string2( obj
, opt_name
, mlt_properties_get( properties
, opt_name
), 0 );
323 av_set_string( obj
, opt_name
, mlt_properties_get( properties
, opt_name
) );
328 /** Add an audio output stream
331 static AVStream
*add_audio_stream( mlt_consumer
this, AVFormatContext
*oc
, int codec_id
)
333 // Get the properties
334 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
336 // Create a new stream
337 AVStream
*st
= av_new_stream( oc
, 1 );
339 // If created, then initialise from properties
342 AVCodecContext
*c
= st
->codec
;
344 // Establish defaults from AVOptions
345 avcodec_get_context_defaults2( c
, CODEC_TYPE_AUDIO
);
347 c
->codec_id
= codec_id
;
348 c
->codec_type
= CODEC_TYPE_AUDIO
;
350 // Setup multi-threading
351 int thread_count
= mlt_properties_get_int( properties
, "threads" );
352 if ( thread_count
== 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
353 thread_count
= atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
354 if ( thread_count
> 1 )
355 avcodec_thread_init( c
, thread_count
);
357 if (oc
->oformat
->flags
& AVFMT_GLOBALHEADER
)
358 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
360 // Allow the user to override the audio fourcc
361 if ( mlt_properties_get( properties
, "atag" ) )
364 char *arg
= mlt_properties_get( properties
, "atag" );
365 int tag
= strtol( arg
, &tail
, 0);
367 tag
= arg
[ 0 ] + ( arg
[ 1 ] << 8 ) + ( arg
[ 2 ] << 16 ) + ( arg
[ 3 ] << 24 );
371 // Process properties as AVOptions
372 apply_properties( c
, properties
, AV_OPT_FLAG_AUDIO_PARAM
| AV_OPT_FLAG_ENCODING_PARAM
);
374 int audio_qscale
= mlt_properties_get_int( properties
, "aq" );
375 if ( audio_qscale
> QSCALE_NONE
)
377 c
->flags
|= CODEC_FLAG_QSCALE
;
378 c
->global_quality
= st
->quality
= FF_QP2LAMBDA
* audio_qscale
;
381 // Set parameters controlled by MLT
382 c
->sample_rate
= mlt_properties_get_int( properties
, "frequency" );
383 c
->channels
= mlt_properties_get_int( properties
, "channels" );
385 if ( mlt_properties_get( properties
, "alang" ) != NULL
)
386 strncpy( st
->language
, mlt_properties_get( properties
, "alang" ), sizeof( st
->language
) );
390 fprintf( stderr
, "%s: Could not allocate a stream for audio\n", __FILE__
);
396 static int open_audio( AVFormatContext
*oc
, AVStream
*st
, int audio_outbuf_size
)
398 // We will return the audio input size from here
399 int audio_input_frame_size
= 0;
402 AVCodecContext
*c
= st
->codec
;
405 AVCodec
*codec
= avcodec_find_encoder( c
->codec_id
);
407 // Continue if codec found and we can open it
408 if ( codec
!= NULL
&& avcodec_open( c
, codec
) >= 0 )
410 // ugly hack for PCM codecs (will be removed ASAP with new PCM
411 // support to compute the input frame size in samples
412 if ( c
->frame_size
<= 1 )
414 audio_input_frame_size
= audio_outbuf_size
/ c
->channels
;
415 switch(st
->codec
->codec_id
)
417 case CODEC_ID_PCM_S16LE
:
418 case CODEC_ID_PCM_S16BE
:
419 case CODEC_ID_PCM_U16LE
:
420 case CODEC_ID_PCM_U16BE
:
421 audio_input_frame_size
>>= 1;
429 audio_input_frame_size
= c
->frame_size
;
432 // Some formats want stream headers to be seperate (hmm)
433 if( !strcmp( oc
->oformat
->name
, "mp4" ) ||
434 !strcmp( oc
->oformat
->name
, "mov" ) ||
435 !strcmp( oc
->oformat
->name
, "3gp" ) )
436 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
440 fprintf( stderr
, "%s: Unable to encode audio - disabling audio output.\n", __FILE__
);
443 return audio_input_frame_size
;
446 static void close_audio( AVFormatContext
*oc
, AVStream
*st
)
448 avcodec_close( st
->codec
);
451 /** Add a video output stream
454 static AVStream
*add_video_stream( mlt_consumer
this, AVFormatContext
*oc
, int codec_id
)
456 // Get the properties
457 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
459 // Create a new stream
460 AVStream
*st
= av_new_stream( oc
, 0 );
464 char *pix_fmt
= mlt_properties_get( properties
, "pix_fmt" );
465 AVCodecContext
*c
= st
->codec
;
467 // Establish defaults from AVOptions
468 avcodec_get_context_defaults2( c
, CODEC_TYPE_VIDEO
);
470 c
->codec_id
= codec_id
;
471 c
->codec_type
= CODEC_TYPE_VIDEO
;
473 // Setup multi-threading
474 int thread_count
= mlt_properties_get_int( properties
, "threads" );
475 if ( thread_count
== 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
476 thread_count
= atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
477 if ( thread_count
> 1 )
478 avcodec_thread_init( c
, thread_count
);
480 // Process properties as AVOptions
481 apply_properties( c
, properties
, AV_OPT_FLAG_VIDEO_PARAM
| AV_OPT_FLAG_ENCODING_PARAM
);
483 // Set options controlled by MLT
484 c
->width
= mlt_properties_get_int( properties
, "width" );
485 c
->height
= mlt_properties_get_int( properties
, "height" );
486 c
->time_base
.num
= mlt_properties_get_int( properties
, "frame_rate_den" );
487 c
->time_base
.den
= mlt_properties_get_int( properties
, "frame_rate_num" );
488 st
->time_base
= c
->time_base
;
489 c
->pix_fmt
= pix_fmt ?
avcodec_get_pix_fmt( pix_fmt
) : PIX_FMT_YUV420P
;
491 if ( mlt_properties_get( properties
, "aspect" ) )
493 // "-aspect" on ffmpeg command line is display aspect ratio
494 double ar
= mlt_properties_get_double( properties
, "aspect" );
495 AVRational rational
= av_d2q( ar
, 255 );
497 // Update the profile and properties as well since this is an alias
498 // for mlt properties that correspond to profile settings
499 mlt_properties_set_int( properties
, "display_aspect_num", rational
.num
);
500 mlt_properties_set_int( properties
, "display_aspect_den", rational
.den
);
501 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
504 profile
->display_aspect_num
= rational
.num
;
505 profile
->display_aspect_den
= rational
.den
;
506 mlt_properties_set_double( properties
, "display_ratio", mlt_profile_dar( profile
) );
509 // Now compute the sample aspect ratio
510 rational
= av_d2q( ar
* c
->height
/ c
->width
, 255 );
511 c
->sample_aspect_ratio
= rational
;
512 // Update the profile and properties as well since this is an alias
513 // for mlt properties that correspond to profile settings
514 mlt_properties_set_int( properties
, "sample_aspect_num", rational
.num
);
515 mlt_properties_set_int( properties
, "sample_aspect_den", rational
.den
);
518 profile
->sample_aspect_num
= rational
.num
;
519 profile
->sample_aspect_den
= rational
.den
;
520 mlt_properties_set_double( properties
, "aspect_ratio", mlt_profile_sar( profile
) );
525 c
->sample_aspect_ratio
.num
= mlt_properties_get_int( properties
, "sample_aspect_num" );
526 c
->sample_aspect_ratio
.den
= mlt_properties_get_int( properties
, "sample_aspect_den" );
528 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
529 st
->sample_aspect_ratio
= c
->sample_aspect_ratio
;
532 if ( mlt_properties_get_double( properties
, "qscale" ) > 0 )
534 c
->flags
|= CODEC_FLAG_QSCALE
;
535 st
->quality
= FF_QP2LAMBDA
* mlt_properties_get_double( properties
, "qscale" );
538 // Allow the user to override the video fourcc
539 if ( mlt_properties_get( properties
, "vtag" ) )
542 const char *arg
= mlt_properties_get( properties
, "vtag" );
543 int tag
= strtol( arg
, &tail
, 0);
545 tag
= arg
[ 0 ] + ( arg
[ 1 ] << 8 ) + ( arg
[ 2 ] << 16 ) + ( arg
[ 3 ] << 24 );
549 // Some formats want stream headers to be seperate
550 if ( oc
->oformat
->flags
& AVFMT_GLOBALHEADER
)
551 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
553 // Translate these standard mlt consumer properties to ffmpeg
554 if ( mlt_properties_get_int( properties
, "progressive" ) == 0 &&
555 mlt_properties_get_int( properties
, "deinterlace" ) == 0 )
557 if ( mlt_properties_get_int( properties
, "ildct" ) )
558 c
->flags
|= CODEC_FLAG_INTERLACED_DCT
;
559 if ( mlt_properties_get_int( properties
, "ilme" ) )
560 c
->flags
|= CODEC_FLAG_INTERLACED_ME
;
563 // parse the ratecontrol override string
565 char *rc_override
= mlt_properties_get( properties
, "rc_override" );
566 for ( i
= 0; rc_override
; i
++ )
569 int e
= sscanf( rc_override
, "%d,%d,%d", &start
, &end
, &q
);
571 fprintf( stderr
, "%s: Error parsing rc_override\n", __FILE__
);
572 c
->rc_override
= av_realloc( c
->rc_override
, sizeof( RcOverride
) * ( i
+ 1 ) );
573 c
->rc_override
[i
].start_frame
= start
;
574 c
->rc_override
[i
].end_frame
= end
;
577 c
->rc_override
[i
].qscale
= q
;
578 c
->rc_override
[i
].quality_factor
= 1.0;
582 c
->rc_override
[i
].qscale
= 0;
583 c
->rc_override
[i
].quality_factor
= -q
/ 100.0;
585 rc_override
= strchr( rc_override
, '/' );
589 c
->rc_override_count
= i
;
590 if ( !c
->rc_initial_buffer_occupancy
)
591 c
->rc_initial_buffer_occupancy
= c
->rc_buffer_size
* 3/4;
592 c
->intra_dc_precision
= mlt_properties_get_int( properties
, "dc" ) - 8;
595 i
= mlt_properties_get_int( properties
, "pass" );
597 c
->flags
|= CODEC_FLAG_PASS1
;
599 c
->flags
|= CODEC_FLAG_PASS2
;
600 if ( codec_id
!= CODEC_ID_H264
&& ( c
->flags
& ( CODEC_FLAG_PASS1
| CODEC_FLAG_PASS2
) ) )
602 char logfilename
[1024];
607 snprintf( logfilename
, sizeof(logfilename
), "%s_2pass.log",
608 mlt_properties_get( properties
, "passlogfile" ) ?
mlt_properties_get( properties
, "passlogfile" ) : mlt_properties_get( properties
, "target" ) );
609 if ( c
->flags
& CODEC_FLAG_PASS1
)
611 f
= fopen( logfilename
, "w" );
613 perror( logfilename
);
615 mlt_properties_set_data( properties
, "_logfile", f
, 0, ( mlt_destructor
)fclose
, NULL
);
619 /* read the log file */
620 f
= fopen( logfilename
, "r" );
627 mlt_properties_set( properties
, "_logfilename", logfilename
);
628 fseek( f
, 0, SEEK_END
);
630 fseek( f
, 0, SEEK_SET
);
631 logbuffer
= av_malloc( size
+ 1 );
633 fprintf( stderr
, "%s: Could not allocate log buffer\n", __FILE__
);
636 size
= fread( logbuffer
, 1, size
, f
);
638 logbuffer
[size
] = '\0';
639 c
->stats_in
= logbuffer
;
640 mlt_properties_set_data( properties
, "_logbuffer", logbuffer
, 0, ( mlt_destructor
)av_free
, NULL
);
648 fprintf( stderr
, "%s: Could not allocate a stream for video\n", __FILE__
);
654 static AVFrame
*alloc_picture( int pix_fmt
, int width
, int height
)
657 AVFrame
*picture
= avcodec_alloc_frame();
659 // Determine size of the
660 int size
= avpicture_get_size(pix_fmt
, width
, height
);
662 // Allocate the picture buf
663 uint8_t *picture_buf
= av_malloc(size
);
665 // If we have both, then fill the image
666 if ( picture
!= NULL
&& picture_buf
!= NULL
)
668 // Fill the frame with the allocated buffer
669 avpicture_fill( (AVPicture
*)picture
, picture_buf
, pix_fmt
, width
, height
);
673 // Something failed - clean up what we can
675 av_free( picture_buf
);
682 static int open_video(AVFormatContext
*oc
, AVStream
*st
)
685 AVCodecContext
*video_enc
= st
->codec
;
687 // find the video encoder
688 AVCodec
*codec
= avcodec_find_encoder( video_enc
->codec_id
);
690 if( codec
&& codec
->pix_fmts
)
692 const enum PixelFormat
*p
= codec
->pix_fmts
;
695 if( *p
== video_enc
->pix_fmt
)
699 video_enc
->pix_fmt
= codec
->pix_fmts
[ 0 ];
702 // Open the codec safely
703 return codec
!= NULL
&& avcodec_open( video_enc
, codec
) >= 0;
706 void close_video(AVFormatContext
*oc
, AVStream
*st
)
708 avcodec_close(st
->codec
);
711 static inline long time_difference( struct timeval
*time1
)
713 struct timeval time2
;
714 gettimeofday( &time2
, NULL
);
715 return time2
.tv_sec
* 1000000 + time2
.tv_usec
- time1
->tv_sec
* 1000000 - time1
->tv_usec
;
718 /** The main thread - the argument is simply the consumer.
721 static void *consumer_thread( void *arg
)
723 // Map the argument to the object
724 mlt_consumer
this = arg
;
726 // Get the properties
727 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
729 // Get the terminate on pause property
730 int terminate_on_pause
= mlt_properties_get_int( properties
, "terminate_on_pause" );
733 // Determine if feed is slow (for realtime stuff)
734 int real_time_output
= mlt_properties_get_int( properties
, "real_time" );
739 // Get the frame rate
740 double fps
= mlt_properties_get_double( properties
, "fps" );
742 // Get width and height
743 int width
= mlt_properties_get_int( properties
, "width" );
744 int height
= mlt_properties_get_int( properties
, "height" );
745 int img_width
= width
;
746 int img_height
= height
;
748 // Get default audio properties
749 mlt_audio_format aud_fmt
= mlt_audio_pcm
;
750 int channels
= mlt_properties_get_int( properties
, "channels" );
751 int frequency
= mlt_properties_get_int( properties
, "frequency" );
755 // AVFormat audio buffer and frame size
756 int audio_outbuf_size
= 10000;
757 uint8_t *audio_outbuf
= av_malloc( audio_outbuf_size
);
758 int audio_input_frame_size
= 0;
760 // AVFormat video buffer and frame count
762 int video_outbuf_size
= ( 1024 * 1024 );
763 uint8_t *video_outbuf
= av_malloc( video_outbuf_size
);
765 // Used for the frame properties
766 mlt_frame frame
= NULL
;
767 mlt_properties frame_properties
= NULL
;
770 mlt_deque queue
= mlt_properties_get_data( properties
, "frame_queue", NULL
);
771 sample_fifo fifo
= mlt_properties_get_data( properties
, "sample_fifo", NULL
);
773 // Need two av pictures for converting
774 AVFrame
*output
= NULL
;
775 AVFrame
*input
= alloc_picture( PIX_FMT_YUV422
, width
, height
);
777 // For receiving images from an mlt_frame
779 mlt_image_format img_fmt
= mlt_image_yuv422
;
781 // For receiving audio samples back from the fifo
782 int16_t *buffer
= av_malloc( 48000 * 2 );
785 // Allocate the context
786 AVFormatContext
*oc
= av_alloc_format_context( );
789 AVStream
*audio_st
= NULL
;
790 AVStream
*video_st
= NULL
;
793 double audio_pts
= 0;
794 double video_pts
= 0;
801 long int total_time
= 0;
803 // Determine the format
804 AVOutputFormat
*fmt
= NULL
;
805 char *filename
= mlt_properties_get( properties
, "target" );
806 char *format
= mlt_properties_get( properties
, "f" );
807 char *vcodec
= mlt_properties_get( properties
, "vcodec" );
808 char *acodec
= mlt_properties_get( properties
, "acodec" );
810 // Used to store and override codec ids
814 // Check for user selected format first
815 if ( format
!= NULL
)
816 fmt
= guess_format( format
, NULL
, NULL
);
818 // Otherwise check on the filename
819 if ( fmt
== NULL
&& filename
!= NULL
)
820 fmt
= guess_format( NULL
, filename
, NULL
);
822 // Otherwise default to mpeg
824 fmt
= guess_format( "mpeg", NULL
, NULL
);
826 // We need a filename - default to stdout?
827 if ( filename
== NULL
|| !strcmp( filename
, "" ) )
830 // Get the codec ids selected
831 audio_codec_id
= fmt
->audio_codec
;
832 video_codec_id
= fmt
->video_codec
;
834 // Check for audio codec overides
835 if ( acodec
!= NULL
)
837 AVCodec
*p
= avcodec_find_encoder_by_name( acodec
);
839 audio_codec_id
= p
->id
;
841 fprintf( stderr
, "%s: audio codec %s unrecognised - ignoring\n", __FILE__
, acodec
);
844 // Check for video codec overides
845 if ( vcodec
!= NULL
)
847 AVCodec
*p
= avcodec_find_encoder_by_name( vcodec
);
849 video_codec_id
= p
->id
;
851 fprintf( stderr
, "%s: video codec %s unrecognised - ignoring\n", __FILE__
, vcodec
);
858 tmp
= mlt_properties_get( properties
, "meta.attr.title.markup");
859 if (tmp
!= NULL
) snprintf( oc
->title
, sizeof(oc
->title
), "%s", tmp
);
861 tmp
= mlt_properties_get( properties
, "meta.attr.comment.markup");
862 if (tmp
!= NULL
) snprintf( oc
->comment
, sizeof(oc
->comment
), "%s", tmp
);
864 tmp
= mlt_properties_get( properties
, "meta.attr.author.markup");
865 if (tmp
!= NULL
) snprintf( oc
->author
, sizeof(oc
->author
), "%s", tmp
);
867 tmp
= mlt_properties_get( properties
, "meta.attr.copyright.markup");
868 if (tmp
!= NULL
) snprintf( oc
->copyright
, sizeof(oc
->copyright
), "%s", tmp
);
870 tmp
= mlt_properties_get( properties
, "meta.attr.album.markup");
871 if (tmp
!= NULL
) snprintf( oc
->album
, sizeof(oc
->album
), "%s", tmp
);
873 metavalue
= mlt_properties_get_int( properties
, "meta.attr.year.markup");
874 if (metavalue
!= 0) oc
->year
= metavalue
;
876 metavalue
= mlt_properties_get_int( properties
, "meta.attr.track.markup");
877 if (metavalue
!= 0) oc
->track
= metavalue
;
880 snprintf( oc
->filename
, sizeof(oc
->filename
), "%s", filename
);
882 // Add audio and video streams
883 if ( fmt
->video_codec
!= CODEC_ID_NONE
)
884 video_st
= add_video_stream( this, oc
, video_codec_id
);
885 if ( fmt
->audio_codec
!= CODEC_ID_NONE
)
886 audio_st
= add_audio_stream( this, oc
, audio_codec_id
);
888 // Set the parameters (even though we have none...)
889 if ( av_set_parameters(oc
, NULL
) >= 0 )
891 oc
->preload
= ( int )( mlt_properties_get_double( properties
, "muxpreload" ) * AV_TIME_BASE
);
892 oc
->max_delay
= ( int )( mlt_properties_get_double( properties
, "muxdelay" ) * AV_TIME_BASE
);
894 // Process properties as AVOptions
895 apply_properties( oc
, properties
, AV_OPT_FLAG_ENCODING_PARAM
);
897 if ( video_st
&& !open_video( oc
, video_st
) )
900 audio_input_frame_size
= open_audio( oc
, audio_st
, audio_outbuf_size
);
902 // Open the output file, if needed
903 if ( !( fmt
->flags
& AVFMT_NOFILE
) )
905 if ( url_fopen( &oc
->pb
, filename
, URL_WRONLY
) < 0 )
907 fprintf( stderr
, "%s: Could not open '%s'\n", __FILE__
, filename
);
908 mlt_properties_set_int( properties
, "running", 0 );
912 // Write the stream header, if any
913 if ( mlt_properties_get_int( properties
, "running" ) )
914 av_write_header( oc
);
918 fprintf( stderr
, "%s: Invalid output format parameters\n", __FILE__
);
919 mlt_properties_set_int( properties
, "running", 0 );
924 output
= alloc_picture( video_st
->codec
->pix_fmt
, width
, height
);
926 // Last check - need at least one stream
927 if ( audio_st
== NULL
&& video_st
== NULL
)
928 mlt_properties_set_int( properties
, "running", 0 );
930 // Get the starting time (can ignore the times above)
931 gettimeofday( &ante
, NULL
);
933 // Loop while running
934 while( mlt_properties_get_int( properties
, "running" ) && !terminated
)
937 frame
= mlt_consumer_rt_frame( this );
939 // Check that we have a frame to work with
942 // Increment frames despatched
945 // Default audio args
946 frame_properties
= MLT_FRAME_PROPERTIES( frame
);
948 // Check for the terminated condition
949 terminated
= terminate_on_pause
&& mlt_properties_get_double( frame_properties
, "_speed" ) == 0.0;
951 // Get audio and append to the fifo
952 if ( !terminated
&& audio_st
)
954 samples
= mlt_sample_calculator( fps
, frequency
, count
++ );
955 mlt_frame_get_audio( frame
, &pcm
, &aud_fmt
, &frequency
, &channels
, &samples
);
957 // Create the fifo if we don't have one
960 fifo
= sample_fifo_init( frequency
, channels
);
961 mlt_properties_set_data( properties
, "sample_fifo", fifo
, 0, ( mlt_destructor
)sample_fifo_close
, NULL
);
964 if ( mlt_properties_get_double( frame_properties
, "_speed" ) != 1.0 )
965 memset( pcm
, 0, samples
* channels
* 2 );
967 // Append the samples
968 sample_fifo_append( fifo
, pcm
, samples
* channels
);
969 total_time
+= ( samples
* 1000000 ) / frequency
;
973 if ( !terminated
&& video_st
)
974 mlt_deque_push_back( queue
, frame
);
976 mlt_frame_close( frame
);
979 // While we have stuff to process, process...
983 audio_pts
= (double)audio_st
->pts
.val
* audio_st
->time_base
.num
/ audio_st
->time_base
.den
;
988 video_pts
= (double)video_st
->pts
.val
* video_st
->time_base
.num
/ video_st
->time_base
.den
;
992 // Write interleaved audio and video frames
993 if ( !video_st
|| ( video_st
&& audio_st
&& audio_pts
< video_pts
) )
995 if ( channels
* audio_input_frame_size
< sample_fifo_used( fifo
) )
999 av_init_packet( &pkt
);
1001 c
= audio_st
->codec
;
1003 sample_fifo_fetch( fifo
, buffer
, channels
* audio_input_frame_size
);
1005 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, buffer
);
1006 // Write the compressed frame in the media file
1007 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1008 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, audio_st
->time_base
);
1009 pkt
.flags
|= PKT_FLAG_KEY
;
1010 pkt
.stream_index
= audio_st
->index
;
1011 pkt
.data
= audio_outbuf
;
1014 if ( av_interleaved_write_frame( oc
, &pkt
) != 0)
1015 fprintf( stderr
, "%s: Error while writing audio frame\n", __FILE__
);
1017 audio_pts
+= c
->frame_size
;
1024 else if ( video_st
)
1026 if ( mlt_deque_count( queue
) )
1031 frame
= mlt_deque_pop_front( queue
);
1032 frame_properties
= MLT_FRAME_PROPERTIES( frame
);
1034 c
= video_st
->codec
;
1036 if ( mlt_properties_get_int( frame_properties
, "rendered" ) )
1043 mlt_events_fire( properties
, "consumer-frame-show", frame
, NULL
);
1045 mlt_frame_get_image( frame
, &image
, &img_fmt
, &img_width
, &img_height
, 0 );
1049 // Convert the mlt frame to an AVPicture
1050 for ( i
= 0; i
< height
; i
++ )
1052 p
= input
->data
[ 0 ] + i
* input
->linesize
[ 0 ];
1061 // Do the colour space conversion
1063 struct SwsContext
*context
= sws_getContext( width
, height
, PIX_FMT_YUV422
,
1064 width
, height
, video_st
->codec
->pix_fmt
, SWS_FAST_BILINEAR
, NULL
, NULL
, NULL
);
1065 sws_scale( context
, input
->data
, input
->linesize
, 0, height
,
1066 output
->data
, output
->linesize
);
1067 sws_freeContext( context
);
1069 img_convert( ( AVPicture
* )output
, video_st
->codec
->pix_fmt
, ( AVPicture
* )input
, PIX_FMT_YUV422
, width
, height
);
1072 // Apply the alpha if applicable
1073 if ( video_st
->codec
->pix_fmt
== PIX_FMT_RGBA32
)
1075 uint8_t *alpha
= mlt_frame_get_alpha_mask( frame
);
1078 for ( i
= 0; i
< height
; i
++ )
1080 n
= ( width
+ 7 ) / 8;
1081 p
= output
->data
[ 0 ] + i
* output
->linesize
[ 0 ];
1089 case 0: do { *p
= *alpha
++; p
+= 4;
1090 case 7: *p
= *alpha
++; p
+= 4;
1091 case 6: *p
= *alpha
++; p
+= 4;
1092 case 5: *p
= *alpha
++; p
+= 4;
1093 case 4: *p
= *alpha
++; p
+= 4;
1094 case 3: *p
= *alpha
++; p
+= 4;
1095 case 2: *p
= *alpha
++; p
+= 4;
1096 case 1: *p
= *alpha
++; p
+= 4;
1104 if (oc
->oformat
->flags
& AVFMT_RAWPICTURE
)
1106 // raw video case. The API will change slightly in the near future for that
1108 av_init_packet(&pkt
);
1110 pkt
.flags
|= PKT_FLAG_KEY
;
1111 pkt
.stream_index
= video_st
->index
;
1112 pkt
.data
= (uint8_t *)output
;
1113 pkt
.size
= sizeof(AVPicture
);
1115 ret
= av_write_frame(oc
, &pkt
);
1116 video_pts
+= c
->frame_size
;
1121 output
->quality
= video_st
->quality
;
1123 // Set frame interlace hints
1124 output
->interlaced_frame
= !mlt_properties_get_int( frame_properties
, "progressive" );
1125 output
->top_field_first
= mlt_properties_get_int( frame_properties
, "top_field_first" );
1128 out_size
= avcodec_encode_video(c
, video_outbuf
, video_outbuf_size
, output
);
1130 // If zero size, it means the image was buffered
1134 av_init_packet( &pkt
);
1136 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1137 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, video_st
->time_base
);
1138 if( c
->coded_frame
&& c
->coded_frame
->key_frame
)
1139 pkt
.flags
|= PKT_FLAG_KEY
;
1140 pkt
.stream_index
= video_st
->index
;
1141 pkt
.data
= video_outbuf
;
1144 // write the compressed frame in the media file
1145 ret
= av_interleaved_write_frame(oc
, &pkt
);
1146 video_pts
+= c
->frame_size
;
1148 // Dual pass logging
1149 if ( mlt_properties_get_data( properties
, "_logfile", NULL
) && c
->stats_out
)
1150 fprintf( mlt_properties_get_data( properties
, "_logfile", NULL
), "%s", c
->stats_out
);
1154 fprintf( stderr
, "%s: error with video encode\n", __FILE__
);
1158 mlt_frame_close( frame
);
1167 if ( real_time_output
== 1 && frames
% 12 == 0 )
1169 long passed
= time_difference( &ante
);
1172 long pending
= ( ( ( long )sample_fifo_used( fifo
) * 1000 ) / frequency
) * 1000;
1175 if ( passed
< total_time
)
1177 long total
= ( total_time
- passed
);
1178 struct timespec t
= { total
/ 1000000, ( total
% 1000000 ) * 1000 };
1179 nanosleep( &t
, NULL
);
1185 if ( ! real_time_output
)
1188 if ( audio_st
&& audio_st
->codec
->frame_size
> 1 ) for (;;)
1190 AVCodecContext
*c
= audio_st
->codec
;
1192 av_init_packet( &pkt
);
1195 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1196 ( channels
* audio_input_frame_size
< sample_fifo_used( fifo
) ) )
1198 sample_fifo_fetch( fifo
, buffer
, channels
* audio_input_frame_size
);
1199 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, buffer
);
1201 if ( pkt
.size
<= 0 )
1202 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, NULL
);
1203 if ( pkt
.size
<= 0 )
1206 // Write the compressed frame in the media file
1207 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1208 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, audio_st
->time_base
);
1209 pkt
.flags
|= PKT_FLAG_KEY
;
1210 pkt
.stream_index
= audio_st
->index
;
1211 pkt
.data
= audio_outbuf
;
1212 if ( av_interleaved_write_frame( oc
, &pkt
) != 0 )
1214 fprintf( stderr
, "%s: Error while writing flushed audio frame\n", __FILE__
);
1220 if ( video_st
&& !( oc
->oformat
->flags
& AVFMT_RAWPICTURE
) ) for (;;)
1222 AVCodecContext
*c
= video_st
->codec
;
1224 av_init_packet( &pkt
);
1227 pkt
.size
= avcodec_encode_video( c
, video_outbuf
, video_outbuf_size
, NULL
);
1228 if ( pkt
.size
<= 0 )
1231 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1232 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, video_st
->time_base
);
1233 if( c
->coded_frame
&& c
->coded_frame
->key_frame
)
1234 pkt
.flags
|= PKT_FLAG_KEY
;
1235 pkt
.stream_index
= video_st
->index
;
1236 pkt
.data
= video_outbuf
;
1238 // write the compressed frame in the media file
1239 if ( av_interleaved_write_frame( oc
, &pkt
) != 0 )
1241 fprintf( stderr
, "%s: Error while writing flushed video frame\n". __FILE__
);
1250 close_video(oc
, video_st
);
1252 close_audio(oc
, audio_st
);
1254 // Write the trailer, if any
1255 av_write_trailer(oc
);
1258 for(i
= 0; i
< oc
->nb_streams
; i
++)
1259 av_freep(&oc
->streams
[i
]);
1261 // Close the output file
1262 if (!(fmt
->flags
& AVFMT_NOFILE
))
1263 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1266 url_fclose(&oc
->pb
);
1269 // Clean up input and output frames
1271 av_free( output
->data
[0] );
1273 av_free( input
->data
[0] );
1275 av_free( video_outbuf
);
1281 // Just in case we terminated on pause
1282 mlt_properties_set_int( properties
, "running", 0 );
1284 mlt_consumer_stopped( this );
1286 if ( mlt_properties_get_int( properties
, "pass" ) == 2 )
1288 // Remove the dual pass log file
1289 if ( mlt_properties_get( properties
, "_logfilename" ) )
1290 remove( mlt_properties_get( properties
, "_logfilename" ) );
1292 // Remove the x264 dual pass logs
1293 char *cwd
= getcwd( NULL
, 0 );
1294 char *file
= "x264_2pass.log";
1295 char *full
= malloc( strlen( cwd
) + strlen( file
) + 2 );
1296 sprintf( full
, "%s/%s", cwd
, file
);
1299 file
= "x264_2pass.log.temp";
1300 full
= malloc( strlen( cwd
) + strlen( file
) + 2 );
1301 sprintf( full
, "%s/%s", cwd
, file
);
1305 remove( "x264_2pass.log.temp" );
1311 /** Close the consumer.
1314 static void consumer_close( mlt_consumer
this )
1316 // Stop the consumer
1317 mlt_consumer_stop( this );
1320 mlt_consumer_close( this );