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>
25 #include <framework/mlt_profile.h>
27 // System header files
37 // avformat header files
44 #if LIBAVUTIL_VERSION_INT < (50<<16)
45 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
46 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
50 // This structure should be extended and made globally available in mlt
62 *sample_fifo
, sample_fifo_s
;
64 sample_fifo
sample_fifo_init( int frequency
, int channels
)
66 sample_fifo
this = calloc( 1, sizeof( sample_fifo_s
) );
67 this->frequency
= frequency
;
68 this->channels
= channels
;
72 // sample_fifo_clear and check are temporarily aborted (not working as intended)
74 void sample_fifo_clear( sample_fifo
this, double time
)
76 int words
= ( float )( time
- this->time
) * this->frequency
* this->channels
;
77 if ( ( int )( ( float )time
* 100 ) < ( int )( ( float )this->time
* 100 ) && this->used
> words
&& words
> 0 )
79 memmove( this->buffer
, &this->buffer
[ words
], ( this->used
- words
) * sizeof( int16_t ) );
83 else if ( ( int )( ( float )time
* 100 ) != ( int )( ( float )this->time
* 100 ) )
90 void sample_fifo_check( sample_fifo
this, double time
)
92 if ( this->used
== 0 )
94 if ( ( int )( ( float )time
* 100 ) < ( int )( ( float )this->time
* 100 ) )
99 void sample_fifo_append( sample_fifo
this, int16_t *samples
, int count
)
101 if ( ( this->size
- this->used
) < count
)
103 this->size
+= count
* 5;
104 this->buffer
= realloc( this->buffer
, this->size
* sizeof( int16_t ) );
107 memcpy( &this->buffer
[ this->used
], samples
, count
* sizeof( int16_t ) );
111 int sample_fifo_used( sample_fifo
this )
116 int sample_fifo_fetch( sample_fifo
this, int16_t *samples
, int count
)
118 if ( count
> this->used
)
121 memcpy( samples
, this->buffer
, count
* sizeof( int16_t ) );
123 memmove( this->buffer
, &this->buffer
[ count
], this->used
* sizeof( int16_t ) );
125 this->time
+= ( double )count
/ this->channels
/ this->frequency
;
130 void sample_fifo_close( sample_fifo
this )
132 free( this->buffer
);
136 // Forward references.
137 static int consumer_start( mlt_consumer
this );
138 static int consumer_stop( mlt_consumer
this );
139 static int consumer_is_stopped( mlt_consumer
this );
140 static void *consumer_thread( void *arg
);
141 static void consumer_close( mlt_consumer
this );
143 /** Initialise the dv consumer.
146 mlt_consumer
consumer_avformat_init( mlt_profile profile
, char *arg
)
148 // Allocate the consumer
149 mlt_consumer
this = mlt_consumer_new( profile
);
151 // If memory allocated and initialises without error
154 // Get properties from the consumer
155 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
157 // Assign close callback
158 this->close
= consumer_close
;
160 // Interpret the argument
162 mlt_properties_set( properties
, "target", arg
);
164 // sample and frame queue
165 mlt_properties_set_data( properties
, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor
)mlt_deque_close
, NULL
);
167 // Audio options not fully handled by AVOptions
168 #define QSCALE_NONE (-99999)
169 mlt_properties_set_int( properties
, "aq", QSCALE_NONE
);
171 // Video options not fully handled by AVOptions
172 mlt_properties_set_int( properties
, "dc", 8 );
174 // Muxer options not fully handled by AVOptions
175 mlt_properties_set_double( properties
, "muxdelay", 0.7 );
176 mlt_properties_set_double( properties
, "muxpreload", 0.5 );
178 // Ensure termination at end of the stream
179 mlt_properties_set_int( properties
, "terminate_on_pause", 1 );
181 // Default to separate processing threads for producer and consumer with no frame dropping!
182 mlt_properties_set_int( properties
, "real_time", -1 );
183 mlt_properties_set_int( properties
, "prefill", 1 );
185 // Set up start/stop/terminated callbacks
186 this->start
= consumer_start
;
187 this->stop
= consumer_stop
;
188 this->is_stopped
= consumer_is_stopped
;
195 /** Start the consumer.
198 static int consumer_start( mlt_consumer
this )
200 // Get the properties
201 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
204 // Report information about available muxers and codecs as YAML Tiny
205 char *s
= mlt_properties_get( properties
, "f" );
206 if ( s
&& strcmp( s
, "list" ) == 0 )
208 fprintf( stderr
, "---\nformats:\n" );
209 AVOutputFormat
*format
= NULL
;
210 while ( ( format
= av_oformat_next( format
) ) )
211 fprintf( stderr
, " - %s\n", format
->name
);
212 fprintf( stderr
, "...\n" );
215 s
= mlt_properties_get( properties
, "acodec" );
216 if ( s
&& strcmp( s
, "list" ) == 0 )
218 fprintf( stderr
, "---\naudio_codecs:\n" );
219 AVCodec
*codec
= NULL
;
220 while ( ( codec
= av_codec_next( codec
) ) )
221 if ( codec
->encode
&& codec
->type
== CODEC_TYPE_AUDIO
)
222 fprintf( stderr
, " - %s\n", codec
->name
);
223 fprintf( stderr
, "...\n" );
226 s
= mlt_properties_get( properties
, "vcodec" );
227 if ( s
&& strcmp( s
, "list" ) == 0 )
229 fprintf( stderr
, "---\nvideo_codecs:\n" );
230 AVCodec
*codec
= NULL
;
231 while ( ( codec
= av_codec_next( codec
) ) )
232 if ( codec
->encode
&& codec
->type
== CODEC_TYPE_VIDEO
)
233 fprintf( stderr
, " - %s\n", codec
->name
);
234 fprintf( stderr
, "...\n" );
238 // Check that we're not already running
239 if ( !error
&& !mlt_properties_get_int( properties
, "running" ) )
242 pthread_t
*thread
= calloc( 1, sizeof( pthread_t
) );
244 // Get the width and height
245 int width
= mlt_properties_get_int( properties
, "width" );
246 int height
= mlt_properties_get_int( properties
, "height" );
248 // Obtain the size property
249 char *size
= mlt_properties_get( properties
, "s" );
255 if ( sscanf( size
, "%dx%d", &tw
, &th
) == 2 && tw
> 0 && th
> 0 )
262 fprintf( stderr
, "%s: Invalid size property %s - ignoring.\n", __FILE__
, size
);
266 // Now ensure we honour the multiple of two requested by libavformat
267 width
= ( width
/ 2 ) * 2;
268 height
= ( height
/ 2 ) * 2;
269 mlt_properties_set_int( properties
, "width", width
);
270 mlt_properties_set_int( properties
, "height", height
);
272 // We need to set these on the profile as well because the s property is
273 // an alias to mlt properties that correspond to profile settings.
274 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
277 profile
->width
= width
;
278 profile
->height
= height
;
281 // Handle the ffmpeg command line "-r" property for frame rate
282 if ( mlt_properties_get( properties
, "r" ) )
284 double frame_rate
= mlt_properties_get_double( properties
, "r" );
285 AVRational rational
= av_d2q( frame_rate
, 255 );
286 mlt_properties_set_int( properties
, "frame_rate_num", rational
.num
);
287 mlt_properties_set_int( properties
, "frame_rate_den", rational
.den
);
290 profile
->frame_rate_num
= rational
.num
;
291 profile
->frame_rate_den
= rational
.den
;
292 mlt_properties_set_double( properties
, "fps", mlt_profile_fps( profile
) );
296 // Apply AVOptions that are synonyms for standard mlt_consumer options
297 if ( mlt_properties_get( properties
, "ac" ) )
298 mlt_properties_set_int( properties
, "channels", mlt_properties_get_int( properties
, "ac" ) );
299 if ( mlt_properties_get( properties
, "ar" ) )
300 mlt_properties_set_int( properties
, "frequency", mlt_properties_get_int( properties
, "ar" ) );
302 // Assign the thread to properties
303 mlt_properties_set_data( properties
, "thread", thread
, sizeof( pthread_t
), free
, NULL
);
305 // Set the running state
306 mlt_properties_set_int( properties
, "running", 1 );
309 pthread_create( thread
, NULL
, consumer_thread
, this );
314 /** Stop the consumer.
317 static int consumer_stop( mlt_consumer
this )
319 // Get the properties
320 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
322 // Check that we're running
323 if ( mlt_properties_get_int( properties
, "running" ) )
326 pthread_t
*thread
= mlt_properties_get_data( properties
, "thread", NULL
);
329 mlt_properties_set_int( properties
, "running", 0 );
331 // Wait for termination
332 pthread_join( *thread
, NULL
);
338 /** Determine if the consumer is stopped.
341 static int consumer_is_stopped( mlt_consumer
this )
343 // Get the properties
344 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
345 return !mlt_properties_get_int( properties
, "running" );
348 /** Process properties as AVOptions and apply to AV context obj
351 static void apply_properties( void *obj
, mlt_properties properties
, int flags
)
354 int count
= mlt_properties_count( properties
);
355 for ( i
= 0; i
< count
; i
++ )
357 const char *opt_name
= mlt_properties_get_name( properties
, i
);
358 const AVOption
*opt
= av_find_opt( obj
, opt_name
, NULL
, flags
, flags
);
360 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
361 av_set_string3( obj
, opt_name
, mlt_properties_get( properties
, opt_name
), 0, NULL
);
362 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
363 av_set_string2( obj
, opt_name
, mlt_properties_get( properties
, opt_name
), 0 );
365 av_set_string( obj
, opt_name
, mlt_properties_get( properties
, opt_name
) );
370 /** Add an audio output stream
373 static AVStream
*add_audio_stream( mlt_consumer
this, AVFormatContext
*oc
, int codec_id
)
375 // Get the properties
376 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
378 // Create a new stream
379 AVStream
*st
= av_new_stream( oc
, 1 );
381 // If created, then initialise from properties
384 AVCodecContext
*c
= st
->codec
;
386 // Establish defaults from AVOptions
387 avcodec_get_context_defaults2( c
, CODEC_TYPE_AUDIO
);
389 c
->codec_id
= codec_id
;
390 c
->codec_type
= CODEC_TYPE_AUDIO
;
392 // Setup multi-threading
393 int thread_count
= mlt_properties_get_int( properties
, "threads" );
394 if ( thread_count
== 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
395 thread_count
= atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
396 if ( thread_count
> 1 )
397 avcodec_thread_init( c
, thread_count
);
399 if (oc
->oformat
->flags
& AVFMT_GLOBALHEADER
)
400 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
402 // Allow the user to override the audio fourcc
403 if ( mlt_properties_get( properties
, "atag" ) )
406 char *arg
= mlt_properties_get( properties
, "atag" );
407 int tag
= strtol( arg
, &tail
, 0);
409 tag
= arg
[ 0 ] + ( arg
[ 1 ] << 8 ) + ( arg
[ 2 ] << 16 ) + ( arg
[ 3 ] << 24 );
413 // Process properties as AVOptions
414 apply_properties( c
, properties
, AV_OPT_FLAG_AUDIO_PARAM
| AV_OPT_FLAG_ENCODING_PARAM
);
416 int audio_qscale
= mlt_properties_get_int( properties
, "aq" );
417 if ( audio_qscale
> QSCALE_NONE
)
419 c
->flags
|= CODEC_FLAG_QSCALE
;
420 c
->global_quality
= st
->quality
= FF_QP2LAMBDA
* audio_qscale
;
423 // Set parameters controlled by MLT
424 c
->sample_rate
= mlt_properties_get_int( properties
, "frequency" );
425 c
->channels
= mlt_properties_get_int( properties
, "channels" );
427 if ( mlt_properties_get( properties
, "alang" ) != NULL
)
428 strncpy( st
->language
, mlt_properties_get( properties
, "alang" ), sizeof( st
->language
) );
432 fprintf( stderr
, "%s: Could not allocate a stream for audio\n", __FILE__
);
438 static int open_audio( AVFormatContext
*oc
, AVStream
*st
, int audio_outbuf_size
)
440 // We will return the audio input size from here
441 int audio_input_frame_size
= 0;
444 AVCodecContext
*c
= st
->codec
;
447 AVCodec
*codec
= avcodec_find_encoder( c
->codec_id
);
449 // Continue if codec found and we can open it
450 if ( codec
!= NULL
&& avcodec_open( c
, codec
) >= 0 )
452 // ugly hack for PCM codecs (will be removed ASAP with new PCM
453 // support to compute the input frame size in samples
454 if ( c
->frame_size
<= 1 )
456 audio_input_frame_size
= audio_outbuf_size
/ c
->channels
;
457 switch(st
->codec
->codec_id
)
459 case CODEC_ID_PCM_S16LE
:
460 case CODEC_ID_PCM_S16BE
:
461 case CODEC_ID_PCM_U16LE
:
462 case CODEC_ID_PCM_U16BE
:
463 audio_input_frame_size
>>= 1;
471 audio_input_frame_size
= c
->frame_size
;
474 // Some formats want stream headers to be seperate (hmm)
475 if( !strcmp( oc
->oformat
->name
, "mp4" ) ||
476 !strcmp( oc
->oformat
->name
, "mov" ) ||
477 !strcmp( oc
->oformat
->name
, "3gp" ) )
478 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
482 fprintf( stderr
, "%s: Unable to encode audio - disabling audio output.\n", __FILE__
);
485 return audio_input_frame_size
;
488 static void close_audio( AVFormatContext
*oc
, AVStream
*st
)
490 avcodec_close( st
->codec
);
493 /** Add a video output stream
496 static AVStream
*add_video_stream( mlt_consumer
this, AVFormatContext
*oc
, int codec_id
)
498 // Get the properties
499 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
501 // Create a new stream
502 AVStream
*st
= av_new_stream( oc
, 0 );
506 char *pix_fmt
= mlt_properties_get( properties
, "pix_fmt" );
507 AVCodecContext
*c
= st
->codec
;
509 // Establish defaults from AVOptions
510 avcodec_get_context_defaults2( c
, CODEC_TYPE_VIDEO
);
512 c
->codec_id
= codec_id
;
513 c
->codec_type
= CODEC_TYPE_VIDEO
;
515 // Setup multi-threading
516 int thread_count
= mlt_properties_get_int( properties
, "threads" );
517 if ( thread_count
== 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
518 thread_count
= atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
519 if ( thread_count
> 1 )
520 avcodec_thread_init( c
, thread_count
);
522 // Process properties as AVOptions
523 apply_properties( c
, properties
, AV_OPT_FLAG_VIDEO_PARAM
| AV_OPT_FLAG_ENCODING_PARAM
);
525 // Set options controlled by MLT
526 c
->width
= mlt_properties_get_int( properties
, "width" );
527 c
->height
= mlt_properties_get_int( properties
, "height" );
528 c
->time_base
.num
= mlt_properties_get_int( properties
, "frame_rate_den" );
529 c
->time_base
.den
= mlt_properties_get_int( properties
, "frame_rate_num" );
530 if ( st
->time_base
.den
== 0 )
531 st
->time_base
= c
->time_base
;
532 c
->pix_fmt
= pix_fmt ?
avcodec_get_pix_fmt( pix_fmt
) : PIX_FMT_YUV420P
;
534 if ( mlt_properties_get( properties
, "aspect" ) )
536 // "-aspect" on ffmpeg command line is display aspect ratio
537 double ar
= mlt_properties_get_double( properties
, "aspect" );
538 AVRational rational
= av_d2q( ar
, 255 );
540 // Update the profile and properties as well since this is an alias
541 // for mlt properties that correspond to profile settings
542 mlt_properties_set_int( properties
, "display_aspect_num", rational
.num
);
543 mlt_properties_set_int( properties
, "display_aspect_den", rational
.den
);
544 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
547 profile
->display_aspect_num
= rational
.num
;
548 profile
->display_aspect_den
= rational
.den
;
549 mlt_properties_set_double( properties
, "display_ratio", mlt_profile_dar( profile
) );
552 // Now compute the sample aspect ratio
553 rational
= av_d2q( ar
* c
->height
/ c
->width
, 255 );
554 c
->sample_aspect_ratio
= rational
;
555 // Update the profile and properties as well since this is an alias
556 // for mlt properties that correspond to profile settings
557 mlt_properties_set_int( properties
, "sample_aspect_num", rational
.num
);
558 mlt_properties_set_int( properties
, "sample_aspect_den", rational
.den
);
561 profile
->sample_aspect_num
= rational
.num
;
562 profile
->sample_aspect_den
= rational
.den
;
563 mlt_properties_set_double( properties
, "aspect_ratio", mlt_profile_sar( profile
) );
568 c
->sample_aspect_ratio
.num
= mlt_properties_get_int( properties
, "sample_aspect_num" );
569 c
->sample_aspect_ratio
.den
= mlt_properties_get_int( properties
, "sample_aspect_den" );
571 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
572 st
->sample_aspect_ratio
= c
->sample_aspect_ratio
;
575 if ( mlt_properties_get_double( properties
, "qscale" ) > 0 )
577 c
->flags
|= CODEC_FLAG_QSCALE
;
578 st
->quality
= FF_QP2LAMBDA
* mlt_properties_get_double( properties
, "qscale" );
581 // Allow the user to override the video fourcc
582 if ( mlt_properties_get( properties
, "vtag" ) )
585 const char *arg
= mlt_properties_get( properties
, "vtag" );
586 int tag
= strtol( arg
, &tail
, 0);
588 tag
= arg
[ 0 ] + ( arg
[ 1 ] << 8 ) + ( arg
[ 2 ] << 16 ) + ( arg
[ 3 ] << 24 );
592 // Some formats want stream headers to be seperate
593 if ( oc
->oformat
->flags
& AVFMT_GLOBALHEADER
)
594 c
->flags
|= CODEC_FLAG_GLOBAL_HEADER
;
596 // Translate these standard mlt consumer properties to ffmpeg
597 if ( mlt_properties_get_int( properties
, "progressive" ) == 0 &&
598 mlt_properties_get_int( properties
, "deinterlace" ) == 0 )
600 if ( mlt_properties_get_int( properties
, "ildct" ) )
601 c
->flags
|= CODEC_FLAG_INTERLACED_DCT
;
602 if ( mlt_properties_get_int( properties
, "ilme" ) )
603 c
->flags
|= CODEC_FLAG_INTERLACED_ME
;
606 // parse the ratecontrol override string
608 char *rc_override
= mlt_properties_get( properties
, "rc_override" );
609 for ( i
= 0; rc_override
; i
++ )
612 int e
= sscanf( rc_override
, "%d,%d,%d", &start
, &end
, &q
);
614 fprintf( stderr
, "%s: Error parsing rc_override\n", __FILE__
);
615 c
->rc_override
= av_realloc( c
->rc_override
, sizeof( RcOverride
) * ( i
+ 1 ) );
616 c
->rc_override
[i
].start_frame
= start
;
617 c
->rc_override
[i
].end_frame
= end
;
620 c
->rc_override
[i
].qscale
= q
;
621 c
->rc_override
[i
].quality_factor
= 1.0;
625 c
->rc_override
[i
].qscale
= 0;
626 c
->rc_override
[i
].quality_factor
= -q
/ 100.0;
628 rc_override
= strchr( rc_override
, '/' );
632 c
->rc_override_count
= i
;
633 if ( !c
->rc_initial_buffer_occupancy
)
634 c
->rc_initial_buffer_occupancy
= c
->rc_buffer_size
* 3/4;
635 c
->intra_dc_precision
= mlt_properties_get_int( properties
, "dc" ) - 8;
638 i
= mlt_properties_get_int( properties
, "pass" );
640 c
->flags
|= CODEC_FLAG_PASS1
;
642 c
->flags
|= CODEC_FLAG_PASS2
;
643 if ( codec_id
!= CODEC_ID_H264
&& ( c
->flags
& ( CODEC_FLAG_PASS1
| CODEC_FLAG_PASS2
) ) )
645 char logfilename
[1024];
650 snprintf( logfilename
, sizeof(logfilename
), "%s_2pass.log",
651 mlt_properties_get( properties
, "passlogfile" ) ?
mlt_properties_get( properties
, "passlogfile" ) : mlt_properties_get( properties
, "target" ) );
652 if ( c
->flags
& CODEC_FLAG_PASS1
)
654 f
= fopen( logfilename
, "w" );
656 perror( logfilename
);
658 mlt_properties_set_data( properties
, "_logfile", f
, 0, ( mlt_destructor
)fclose
, NULL
);
662 /* read the log file */
663 f
= fopen( logfilename
, "r" );
670 mlt_properties_set( properties
, "_logfilename", logfilename
);
671 fseek( f
, 0, SEEK_END
);
673 fseek( f
, 0, SEEK_SET
);
674 logbuffer
= av_malloc( size
+ 1 );
676 fprintf( stderr
, "%s: Could not allocate log buffer\n", __FILE__
);
679 size
= fread( logbuffer
, 1, size
, f
);
681 logbuffer
[size
] = '\0';
682 c
->stats_in
= logbuffer
;
683 mlt_properties_set_data( properties
, "_logbuffer", logbuffer
, 0, ( mlt_destructor
)av_free
, NULL
);
691 fprintf( stderr
, "%s: Could not allocate a stream for video\n", __FILE__
);
697 static AVFrame
*alloc_picture( int pix_fmt
, int width
, int height
)
700 AVFrame
*picture
= avcodec_alloc_frame();
702 // Determine size of the
703 int size
= avpicture_get_size(pix_fmt
, width
, height
);
705 // Allocate the picture buf
706 uint8_t *picture_buf
= av_malloc(size
);
708 // If we have both, then fill the image
709 if ( picture
!= NULL
&& picture_buf
!= NULL
)
711 // Fill the frame with the allocated buffer
712 avpicture_fill( (AVPicture
*)picture
, picture_buf
, pix_fmt
, width
, height
);
716 // Something failed - clean up what we can
718 av_free( picture_buf
);
725 static int open_video(AVFormatContext
*oc
, AVStream
*st
)
728 AVCodecContext
*video_enc
= st
->codec
;
730 // find the video encoder
731 AVCodec
*codec
= avcodec_find_encoder( video_enc
->codec_id
);
733 if( codec
&& codec
->pix_fmts
)
735 const enum PixelFormat
*p
= codec
->pix_fmts
;
738 if( *p
== video_enc
->pix_fmt
)
742 video_enc
->pix_fmt
= codec
->pix_fmts
[ 0 ];
745 // Open the codec safely
746 return codec
!= NULL
&& avcodec_open( video_enc
, codec
) >= 0;
749 void close_video(AVFormatContext
*oc
, AVStream
*st
)
751 avcodec_close(st
->codec
);
754 static inline long time_difference( struct timeval
*time1
)
756 struct timeval time2
;
757 gettimeofday( &time2
, NULL
);
758 return time2
.tv_sec
* 1000000 + time2
.tv_usec
- time1
->tv_sec
* 1000000 - time1
->tv_usec
;
761 /** The main thread - the argument is simply the consumer.
764 static void *consumer_thread( void *arg
)
766 // Map the argument to the object
767 mlt_consumer
this = arg
;
769 // Get the properties
770 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( this );
772 // Get the terminate on pause property
773 int terminate_on_pause
= mlt_properties_get_int( properties
, "terminate_on_pause" );
776 // Determine if feed is slow (for realtime stuff)
777 int real_time_output
= mlt_properties_get_int( properties
, "real_time" );
782 // Get the frame rate
783 double fps
= mlt_properties_get_double( properties
, "fps" );
785 // Get width and height
786 int width
= mlt_properties_get_int( properties
, "width" );
787 int height
= mlt_properties_get_int( properties
, "height" );
788 int img_width
= width
;
789 int img_height
= height
;
791 // Get default audio properties
792 mlt_audio_format aud_fmt
= mlt_audio_pcm
;
793 int channels
= mlt_properties_get_int( properties
, "channels" );
794 int frequency
= mlt_properties_get_int( properties
, "frequency" );
798 // AVFormat audio buffer and frame size
799 int audio_outbuf_size
= 10000;
800 uint8_t *audio_outbuf
= av_malloc( audio_outbuf_size
);
801 int audio_input_frame_size
= 0;
803 // AVFormat video buffer and frame count
805 int video_outbuf_size
= ( 1024 * 1024 );
806 uint8_t *video_outbuf
= av_malloc( video_outbuf_size
);
808 // Used for the frame properties
809 mlt_frame frame
= NULL
;
810 mlt_properties frame_properties
= NULL
;
813 mlt_deque queue
= mlt_properties_get_data( properties
, "frame_queue", NULL
);
814 sample_fifo fifo
= mlt_properties_get_data( properties
, "sample_fifo", NULL
);
816 // Need two av pictures for converting
817 AVFrame
*output
= NULL
;
818 AVFrame
*input
= alloc_picture( PIX_FMT_YUYV422
, width
, height
);
820 // For receiving images from an mlt_frame
822 mlt_image_format img_fmt
= mlt_image_yuv422
;
824 // For receiving audio samples back from the fifo
825 int16_t *buffer
= av_malloc( 48000 * 2 );
828 // Allocate the context
829 AVFormatContext
*oc
= av_alloc_format_context( );
832 AVStream
*audio_st
= NULL
;
833 AVStream
*video_st
= NULL
;
836 double audio_pts
= 0;
837 double video_pts
= 0;
844 long int total_time
= 0;
846 // Determine the format
847 AVOutputFormat
*fmt
= NULL
;
848 char *filename
= mlt_properties_get( properties
, "target" );
849 char *format
= mlt_properties_get( properties
, "f" );
850 char *vcodec
= mlt_properties_get( properties
, "vcodec" );
851 char *acodec
= mlt_properties_get( properties
, "acodec" );
853 // Used to store and override codec ids
857 // Check for user selected format first
858 if ( format
!= NULL
)
859 fmt
= guess_format( format
, NULL
, NULL
);
861 // Otherwise check on the filename
862 if ( fmt
== NULL
&& filename
!= NULL
)
863 fmt
= guess_format( NULL
, filename
, NULL
);
865 // Otherwise default to mpeg
867 fmt
= guess_format( "mpeg", NULL
, NULL
);
869 // We need a filename - default to stdout?
870 if ( filename
== NULL
|| !strcmp( filename
, "" ) )
873 // Get the codec ids selected
874 audio_codec_id
= fmt
->audio_codec
;
875 video_codec_id
= fmt
->video_codec
;
877 // Check for audio codec overides
878 if ( ( acodec
&& strcmp( "acodec", "none" ) == 0 ) || mlt_properties_get_int( properties
, "an" ) )
879 audio_codec_id
= CODEC_ID_NONE
;
882 AVCodec
*p
= avcodec_find_encoder_by_name( acodec
);
884 audio_codec_id
= p
->id
;
886 fprintf( stderr
, "%s: audio codec %s unrecognised - ignoring\n", __FILE__
, acodec
);
889 // Check for video codec overides
890 if ( ( vcodec
&& strcmp( "vcodec", "none" ) == 0 ) || mlt_properties_get_int( properties
, "vn" ) )
891 video_codec_id
= CODEC_ID_NONE
;
894 AVCodec
*p
= avcodec_find_encoder_by_name( vcodec
);
896 video_codec_id
= p
->id
;
898 fprintf( stderr
, "%s: video codec %s unrecognised - ignoring\n", __FILE__
, vcodec
);
905 tmp
= mlt_properties_get( properties
, "meta.attr.title.markup");
906 if (tmp
!= NULL
) snprintf( oc
->title
, sizeof(oc
->title
), "%s", tmp
);
908 tmp
= mlt_properties_get( properties
, "meta.attr.comment.markup");
909 if (tmp
!= NULL
) snprintf( oc
->comment
, sizeof(oc
->comment
), "%s", tmp
);
911 tmp
= mlt_properties_get( properties
, "meta.attr.author.markup");
912 if (tmp
!= NULL
) snprintf( oc
->author
, sizeof(oc
->author
), "%s", tmp
);
914 tmp
= mlt_properties_get( properties
, "meta.attr.copyright.markup");
915 if (tmp
!= NULL
) snprintf( oc
->copyright
, sizeof(oc
->copyright
), "%s", tmp
);
917 tmp
= mlt_properties_get( properties
, "meta.attr.album.markup");
918 if (tmp
!= NULL
) snprintf( oc
->album
, sizeof(oc
->album
), "%s", tmp
);
920 metavalue
= mlt_properties_get_int( properties
, "meta.attr.year.markup");
921 if (metavalue
!= 0) oc
->year
= metavalue
;
923 metavalue
= mlt_properties_get_int( properties
, "meta.attr.track.markup");
924 if (metavalue
!= 0) oc
->track
= metavalue
;
927 snprintf( oc
->filename
, sizeof(oc
->filename
), "%s", filename
);
929 // Add audio and video streams
930 if ( video_codec_id
!= CODEC_ID_NONE
)
931 video_st
= add_video_stream( this, oc
, video_codec_id
);
932 if ( audio_codec_id
!= CODEC_ID_NONE
)
933 audio_st
= add_audio_stream( this, oc
, audio_codec_id
);
935 // Set the parameters (even though we have none...)
936 if ( av_set_parameters(oc
, NULL
) >= 0 )
938 oc
->preload
= ( int )( mlt_properties_get_double( properties
, "muxpreload" ) * AV_TIME_BASE
);
939 oc
->max_delay
= ( int )( mlt_properties_get_double( properties
, "muxdelay" ) * AV_TIME_BASE
);
941 // Process properties as AVOptions
942 apply_properties( oc
, properties
, AV_OPT_FLAG_ENCODING_PARAM
);
944 if ( video_st
&& !open_video( oc
, video_st
) )
947 audio_input_frame_size
= open_audio( oc
, audio_st
, audio_outbuf_size
);
949 // Open the output file, if needed
950 if ( !( fmt
->flags
& AVFMT_NOFILE
) )
952 if ( url_fopen( &oc
->pb
, filename
, URL_WRONLY
) < 0 )
954 fprintf( stderr
, "%s: Could not open '%s'\n", __FILE__
, filename
);
955 mlt_properties_set_int( properties
, "running", 0 );
959 // Write the stream header, if any
960 if ( mlt_properties_get_int( properties
, "running" ) )
961 av_write_header( oc
);
965 fprintf( stderr
, "%s: Invalid output format parameters\n", __FILE__
);
966 mlt_properties_set_int( properties
, "running", 0 );
971 output
= alloc_picture( video_st
->codec
->pix_fmt
, width
, height
);
973 // Last check - need at least one stream
974 if ( audio_st
== NULL
&& video_st
== NULL
)
975 mlt_properties_set_int( properties
, "running", 0 );
977 // Get the starting time (can ignore the times above)
978 gettimeofday( &ante
, NULL
);
980 // Loop while running
981 while( mlt_properties_get_int( properties
, "running" ) && !terminated
)
984 frame
= mlt_consumer_rt_frame( this );
986 // Check that we have a frame to work with
989 // Increment frames despatched
992 // Default audio args
993 frame_properties
= MLT_FRAME_PROPERTIES( frame
);
995 // Check for the terminated condition
996 terminated
= terminate_on_pause
&& mlt_properties_get_double( frame_properties
, "_speed" ) == 0.0;
998 // Get audio and append to the fifo
999 if ( !terminated
&& audio_st
)
1001 samples
= mlt_sample_calculator( fps
, frequency
, count
++ );
1002 mlt_frame_get_audio( frame
, &pcm
, &aud_fmt
, &frequency
, &channels
, &samples
);
1004 // Create the fifo if we don't have one
1007 fifo
= sample_fifo_init( frequency
, channels
);
1008 mlt_properties_set_data( properties
, "sample_fifo", fifo
, 0, ( mlt_destructor
)sample_fifo_close
, NULL
);
1011 if ( mlt_properties_get_double( frame_properties
, "_speed" ) != 1.0 )
1012 memset( pcm
, 0, samples
* channels
* 2 );
1014 // Append the samples
1015 sample_fifo_append( fifo
, pcm
, samples
* channels
);
1016 total_time
+= ( samples
* 1000000 ) / frequency
;
1020 if ( !terminated
&& video_st
)
1021 mlt_deque_push_back( queue
, frame
);
1023 mlt_frame_close( frame
);
1026 // While we have stuff to process, process...
1030 audio_pts
= (double)audio_st
->pts
.val
* audio_st
->time_base
.num
/ audio_st
->time_base
.den
;
1035 video_pts
= (double)video_st
->pts
.val
* video_st
->time_base
.num
/ video_st
->time_base
.den
;
1039 // Write interleaved audio and video frames
1040 if ( !video_st
|| ( video_st
&& audio_st
&& audio_pts
< video_pts
) )
1042 if ( channels
* audio_input_frame_size
< sample_fifo_used( fifo
) )
1046 av_init_packet( &pkt
);
1048 c
= audio_st
->codec
;
1050 sample_fifo_fetch( fifo
, buffer
, channels
* audio_input_frame_size
);
1052 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, buffer
);
1053 // Write the compressed frame in the media file
1054 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1055 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, audio_st
->time_base
);
1056 pkt
.flags
|= PKT_FLAG_KEY
;
1057 pkt
.stream_index
= audio_st
->index
;
1058 pkt
.data
= audio_outbuf
;
1061 if ( av_interleaved_write_frame( oc
, &pkt
) != 0)
1062 fprintf( stderr
, "%s: Error while writing audio frame\n", __FILE__
);
1064 audio_pts
+= c
->frame_size
;
1071 else if ( video_st
)
1073 if ( mlt_deque_count( queue
) )
1078 frame
= mlt_deque_pop_front( queue
);
1079 frame_properties
= MLT_FRAME_PROPERTIES( frame
);
1081 c
= video_st
->codec
;
1083 if ( mlt_properties_get_int( frame_properties
, "rendered" ) )
1090 mlt_events_fire( properties
, "consumer-frame-show", frame
, NULL
);
1092 mlt_frame_get_image( frame
, &image
, &img_fmt
, &img_width
, &img_height
, 0 );
1096 // Convert the mlt frame to an AVPicture
1097 for ( i
= 0; i
< height
; i
++ )
1099 p
= input
->data
[ 0 ] + i
* input
->linesize
[ 0 ];
1108 // Do the colour space conversion
1110 struct SwsContext
*context
= sws_getContext( width
, height
, PIX_FMT_YUYV422
,
1111 width
, height
, video_st
->codec
->pix_fmt
, SWS_FAST_BILINEAR
, NULL
, NULL
, NULL
);
1112 sws_scale( context
, input
->data
, input
->linesize
, 0, height
,
1113 output
->data
, output
->linesize
);
1114 sws_freeContext( context
);
1116 img_convert( ( AVPicture
* )output
, video_st
->codec
->pix_fmt
, ( AVPicture
* )input
, PIX_FMT_YUYV422
, width
, height
);
1119 // Apply the alpha if applicable
1120 if ( video_st
->codec
->pix_fmt
== PIX_FMT_RGB32
)
1122 uint8_t *alpha
= mlt_frame_get_alpha_mask( frame
);
1125 for ( i
= 0; i
< height
; i
++ )
1127 n
= ( width
+ 7 ) / 8;
1128 p
= output
->data
[ 0 ] + i
* output
->linesize
[ 0 ];
1136 case 0: do { *p
= *alpha
++; p
+= 4;
1137 case 7: *p
= *alpha
++; p
+= 4;
1138 case 6: *p
= *alpha
++; p
+= 4;
1139 case 5: *p
= *alpha
++; p
+= 4;
1140 case 4: *p
= *alpha
++; p
+= 4;
1141 case 3: *p
= *alpha
++; p
+= 4;
1142 case 2: *p
= *alpha
++; p
+= 4;
1143 case 1: *p
= *alpha
++; p
+= 4;
1151 if (oc
->oformat
->flags
& AVFMT_RAWPICTURE
)
1153 // raw video case. The API will change slightly in the near future for that
1155 av_init_packet(&pkt
);
1157 pkt
.flags
|= PKT_FLAG_KEY
;
1158 pkt
.stream_index
= video_st
->index
;
1159 pkt
.data
= (uint8_t *)output
;
1160 pkt
.size
= sizeof(AVPicture
);
1162 ret
= av_write_frame(oc
, &pkt
);
1163 video_pts
+= c
->frame_size
;
1168 output
->quality
= video_st
->quality
;
1170 // Set frame interlace hints
1171 output
->interlaced_frame
= !mlt_properties_get_int( frame_properties
, "progressive" );
1172 output
->top_field_first
= mlt_properties_get_int( frame_properties
, "top_field_first" );
1175 out_size
= avcodec_encode_video(c
, video_outbuf
, video_outbuf_size
, output
);
1177 // If zero size, it means the image was buffered
1181 av_init_packet( &pkt
);
1183 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1184 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, video_st
->time_base
);
1185 if( c
->coded_frame
&& c
->coded_frame
->key_frame
)
1186 pkt
.flags
|= PKT_FLAG_KEY
;
1187 pkt
.stream_index
= video_st
->index
;
1188 pkt
.data
= video_outbuf
;
1191 // write the compressed frame in the media file
1192 ret
= av_interleaved_write_frame(oc
, &pkt
);
1193 video_pts
+= c
->frame_size
;
1195 // Dual pass logging
1196 if ( mlt_properties_get_data( properties
, "_logfile", NULL
) && c
->stats_out
)
1197 fprintf( mlt_properties_get_data( properties
, "_logfile", NULL
), "%s", c
->stats_out
);
1201 fprintf( stderr
, "%s: error with video encode\n", __FILE__
);
1205 mlt_frame_close( frame
);
1214 if ( real_time_output
== 1 && frames
% 12 == 0 )
1216 long passed
= time_difference( &ante
);
1219 long pending
= ( ( ( long )sample_fifo_used( fifo
) * 1000 ) / frequency
) * 1000;
1222 if ( passed
< total_time
)
1224 long total
= ( total_time
- passed
);
1225 struct timespec t
= { total
/ 1000000, ( total
% 1000000 ) * 1000 };
1226 nanosleep( &t
, NULL
);
1232 if ( ! real_time_output
)
1235 if ( audio_st
&& audio_st
->codec
->frame_size
> 1 ) for (;;)
1237 AVCodecContext
*c
= audio_st
->codec
;
1239 av_init_packet( &pkt
);
1242 if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1243 ( channels
* audio_input_frame_size
< sample_fifo_used( fifo
) ) )
1245 sample_fifo_fetch( fifo
, buffer
, channels
* audio_input_frame_size
);
1246 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, buffer
);
1248 if ( pkt
.size
<= 0 )
1249 pkt
.size
= avcodec_encode_audio( c
, audio_outbuf
, audio_outbuf_size
, NULL
);
1250 if ( pkt
.size
<= 0 )
1253 // Write the compressed frame in the media file
1254 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1255 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, audio_st
->time_base
);
1256 pkt
.flags
|= PKT_FLAG_KEY
;
1257 pkt
.stream_index
= audio_st
->index
;
1258 pkt
.data
= audio_outbuf
;
1259 if ( av_interleaved_write_frame( oc
, &pkt
) != 0 )
1261 fprintf( stderr
, "%s: Error while writing flushed audio frame\n", __FILE__
);
1267 if ( video_st
&& !( oc
->oformat
->flags
& AVFMT_RAWPICTURE
) ) for (;;)
1269 AVCodecContext
*c
= video_st
->codec
;
1271 av_init_packet( &pkt
);
1274 pkt
.size
= avcodec_encode_video( c
, video_outbuf
, video_outbuf_size
, NULL
);
1275 if ( pkt
.size
<= 0 )
1278 if ( c
->coded_frame
&& c
->coded_frame
->pts
!= AV_NOPTS_VALUE
)
1279 pkt
.pts
= av_rescale_q( c
->coded_frame
->pts
, c
->time_base
, video_st
->time_base
);
1280 if( c
->coded_frame
&& c
->coded_frame
->key_frame
)
1281 pkt
.flags
|= PKT_FLAG_KEY
;
1282 pkt
.stream_index
= video_st
->index
;
1283 pkt
.data
= video_outbuf
;
1285 // write the compressed frame in the media file
1286 if ( av_interleaved_write_frame( oc
, &pkt
) != 0 )
1288 fprintf( stderr
, "%s: Error while writing flushed video frame\n". __FILE__
);
1297 close_video(oc
, video_st
);
1299 close_audio(oc
, audio_st
);
1301 // Write the trailer, if any
1302 av_write_trailer(oc
);
1305 for(i
= 0; i
< oc
->nb_streams
; i
++)
1306 av_freep(&oc
->streams
[i
]);
1308 // Close the output file
1309 if (!(fmt
->flags
& AVFMT_NOFILE
))
1310 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1313 url_fclose(&oc
->pb
);
1316 // Clean up input and output frames
1318 av_free( output
->data
[0] );
1320 av_free( input
->data
[0] );
1322 av_free( video_outbuf
);
1328 // Just in case we terminated on pause
1329 mlt_properties_set_int( properties
, "running", 0 );
1331 mlt_consumer_stopped( this );
1333 if ( mlt_properties_get_int( properties
, "pass" ) == 2 )
1335 // Remove the dual pass log file
1336 if ( mlt_properties_get( properties
, "_logfilename" ) )
1337 remove( mlt_properties_get( properties
, "_logfilename" ) );
1339 // Remove the x264 dual pass logs
1340 char *cwd
= getcwd( NULL
, 0 );
1341 char *file
= "x264_2pass.log";
1342 char *full
= malloc( strlen( cwd
) + strlen( file
) + 2 );
1343 sprintf( full
, "%s/%s", cwd
, file
);
1346 file
= "x264_2pass.log.temp";
1347 full
= malloc( strlen( cwd
) + strlen( file
) + 2 );
1348 sprintf( full
, "%s/%s", cwd
, file
);
1352 remove( "x264_2pass.log.temp" );
1358 /** Close the consumer.
1361 static void consumer_close( mlt_consumer
this )
1363 // Stop the consumer
1364 mlt_consumer_stop( this );
1367 mlt_consumer_close( this );