git.sesse.net Git - mlt/blob - src/modules/avformat/consumer_avformat.c

   1 /*
   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
   6  *
   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.
  11  *
  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.
  16  *
  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
  20  */
  21
  22 // mlt Header files
  23 #include <framework/mlt_consumer.h>
  24 #include <framework/mlt_frame.h>
  25
  26 // System header files
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <limits.h>
  31 #include <pthread.h>
  32 #include <sys/time.h>
  33 #include <math.h>
  34 #include <unistd.h>
  35
  36 // avformat header files
  37 #include <avformat.h>
  38 #ifdef SWSCALE
  39 #include <swscale.h>
  40 #endif
  41 #include <opt.h>
  42
  43 //
  44 // This structure should be extended and made globally available in mlt
  45 //
  46
  47 typedef struct
  48 {
  49         int16_t *buffer;
  50         int size;
  51         int used;
  52         double time;
  53         int frequency;
  54         int channels;
  55 }
  56 *sample_fifo, sample_fifo_s;
  57
  58 sample_fifo sample_fifo_init( int frequency, int channels )
  59 {
  60         sample_fifo this = calloc( 1, sizeof( sample_fifo_s ) );
  61         this->frequency = frequency;
  62         this->channels = channels;
  63         return this;
  64 }
  65
  66 // sample_fifo_clear and check are temporarily aborted (not working as intended)
  67
  68 void sample_fifo_clear( sample_fifo this, double time )
  69 {
  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 )
  72         {
  73                 memmove( this->buffer, &this->buffer[ words ], ( this->used - words ) * sizeof( int16_t ) );
  74                 this->used -= words;
  75                 this->time = time;
  76         }
  77         else if ( ( int )( ( float )time * 100 ) != ( int )( ( float )this->time * 100 ) )
  78         {
  79                 this->used = 0;
  80                 this->time = time;
  81         }
  82 }
  83
  84 void sample_fifo_check( sample_fifo this, double time )
  85 {
  86         if ( this->used == 0 )
  87         {
  88                 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )this->time * 100 ) )
  89                         this->time = time;
  90         }
  91 }
  92
  93 void sample_fifo_append( sample_fifo this, int16_t *samples, int count )
  94 {
  95         if ( ( this->size - this->used ) < count )
  96         {
  97                 this->size += count * 5;
  98                 this->buffer = realloc( this->buffer, this->size * sizeof( int16_t ) );
  99         }
 100
 101         memcpy( &this->buffer[ this->used ], samples, count * sizeof( int16_t ) );
 102         this->used += count;
 103 }
 104
 105 int sample_fifo_used( sample_fifo this )
 106 {
 107         return this->used;
 108 }
 109
 110 int sample_fifo_fetch( sample_fifo this, int16_t *samples, int count )
 111 {
 112         if ( count > this->used )
 113                 count = this->used;
 114
 115         memcpy( samples, this->buffer, count * sizeof( int16_t ) );
 116         this->used -= count;
 117         memmove( this->buffer, &this->buffer[ count ], this->used * sizeof( int16_t ) );
 118
 119         this->time += ( double )count / this->channels / this->frequency;
 120
 121         return count;
 122 }
 123
 124 void sample_fifo_close( sample_fifo this )
 125 {
 126         free( this->buffer );
 127         free( this );
 128 }
 129
 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 );
 136
 137 /** Initialise the dv consumer.
 138 */
 139
 140 mlt_consumer consumer_avformat_init( mlt_profile profile, char *arg )
 141 {
 142         // Allocate the consumer
 143         mlt_consumer this = mlt_consumer_new( profile );
 144
 145         // If memory allocated and initialises without error
 146         if ( this != NULL )
 147         {
 148                 // Get properties from the consumer
 149                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 150
 151                 // Assign close callback
 152                 this->close = consumer_close;
 153
 154                 // Interpret the argument
 155                 if ( arg != NULL )
 156                         mlt_properties_set( properties, "target", arg );
 157
 158                 // sample and frame queue
 159                 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
 160
 161                 // Audio options not fully handled by AVOptions
 162 #define QSCALE_NONE (-99999)
 163                 mlt_properties_set_int( properties, "aq", QSCALE_NONE );
 164
 165                 // Video options not fully handled by AVOptions
 166                 mlt_properties_set_int( properties, "dc", 8 );
 167
 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 );
 171
 172                 // Ensure termination at end of the stream
 173                 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
 174
 175                 // Default to separate processing threads for producer and consumer with no frame dropping!
 176                 mlt_properties_set_int( properties, "real_time", -1 );
 177
 178                 // Set up start/stop/terminated callbacks
 179                 this->start = consumer_start;
 180                 this->stop = consumer_stop;
 181                 this->is_stopped = consumer_is_stopped;
 182         }
 183
 184         // Return this
 185         return this;
 186 }
 187
 188 /** Start the consumer.
 189 */
 190
 191 static int consumer_start( mlt_consumer this )
 192 {
 193         // Get the properties
 194         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 195         int error = 0;
 196
 197         // Report information about available muxers and codecs as YAML Tiny
 198         char *s = mlt_properties_get( properties, "f" );
 199         if ( s && strcmp( s, "list" ) == 0 )
 200         {
 201                 fprintf( stderr, "---\nformats:\n" );
 202                 AVOutputFormat *format = NULL;
 203                 while ( ( format = av_oformat_next( format ) ) )
 204                         fprintf( stderr, "  - %s\n", format->name );
 205                 fprintf( stderr, "...\n" );
 206                 error = 1;
 207         }
 208         s = mlt_properties_get( properties, "acodec" );
 209         if ( s && strcmp( s, "list" ) == 0 )
 210         {
 211                 fprintf( stderr, "---\naudio_codecs:\n" );
 212                 AVCodec *codec = NULL;
 213                 while ( ( codec = av_codec_next( codec ) ) )
 214                         if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
 215                                 fprintf( stderr, "  - %s\n", codec->name );
 216                 fprintf( stderr, "...\n" );
 217                 error = 1;
 218         }
 219         s = mlt_properties_get( properties, "vcodec" );
 220         if ( s && strcmp( s, "list" ) == 0 )
 221         {
 222                 fprintf( stderr, "---\nvideo_codecs:\n" );
 223                 AVCodec *codec = NULL;
 224                 while ( ( codec = av_codec_next( codec ) ) )
 225                         if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
 226                                 fprintf( stderr, "  - %s\n", codec->name );
 227                 fprintf( stderr, "...\n" );
 228                 error = 1;
 229         }
 230
 231         // Check that we're not already running
 232         if ( !error && !mlt_properties_get_int( properties, "running" ) )
 233         {
 234                 // Allocate a thread
 235                 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
 236
 237                 // Get the width and height
 238                 int width = mlt_properties_get_int( properties, "width" );
 239                 int height = mlt_properties_get_int( properties, "height" );
 240
 241                 // Obtain the size property
 242                 char *size = mlt_properties_get( properties, "s" );
 243
 244                 // Interpret it
 245                 if ( size != NULL )
 246                 {
 247                         int tw, th;
 248                         if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
 249                         {
 250                                 width = tw;
 251                                 height = th;
 252                         }
 253                         else
 254                         {
 255                                 fprintf( stderr, "%s: Invalid size property %s - ignoring.\n", __FILE__, size );
 256                         }
 257                 }
 258
 259                 // Now ensure we honour the multiple of two requested by libavformat
 260                 width = ( width / 2 ) * 2;
 261                 height = ( height / 2 ) * 2;
 262                 mlt_properties_set_int( properties, "width", width );
 263                 mlt_properties_set_int( properties, "height", height );
 264
 265                 // We need to set these on the profile as well because the s property is
 266                 // an alias to mlt properties that correspond to profile settings.
 267                 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
 268                 if ( profile )
 269                 {
 270                         profile->width = width;
 271                         profile->height = height;
 272                 }
 273
 274                 // Handle the ffmpeg command line "-r" property for frame rate
 275                 if ( mlt_properties_get( properties, "r" ) )
 276                 {
 277                         double frame_rate = mlt_properties_get_double( properties, "r" );
 278                         AVRational rational = av_d2q( frame_rate, 255 );
 279                         mlt_properties_set_int( properties, "frame_rate_num", rational.num );
 280                         mlt_properties_set_int( properties, "frame_rate_den", rational.den );
 281                         if ( profile )
 282                         {
 283                                 profile->frame_rate_num = rational.num;
 284                                 profile->frame_rate_den = rational.den;
 285                                 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
 286                         }
 287                 }
 288
 289                 // Apply AVOptions that are synonyms for standard mlt_consumer options
 290                 if ( mlt_properties_get( properties, "ac" ) )
 291                         mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
 292                 if ( mlt_properties_get( properties, "ar" ) )
 293                         mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
 294
 295                 // Assign the thread to properties
 296                 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
 297
 298                 // Set the running state
 299                 mlt_properties_set_int( properties, "running", 1 );
 300
 301                 // Create the thread
 302                 pthread_create( thread, NULL, consumer_thread, this );
 303         }
 304         return error;
 305 }
 306
 307 /** Stop the consumer.
 308 */
 309
 310 static int consumer_stop( mlt_consumer this )
 311 {
 312         // Get the properties
 313         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 314
 315         // Check that we're running
 316         if ( mlt_properties_get_int( properties, "running" ) )
 317         {
 318                 // Get the thread
 319                 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
 320
 321                 // Stop the thread
 322                 mlt_properties_set_int( properties, "running", 0 );
 323
 324                 // Wait for termination
 325                 pthread_join( *thread, NULL );
 326         }
 327
 328         return 0;
 329 }
 330
 331 /** Determine if the consumer is stopped.
 332 */
 333
 334 static int consumer_is_stopped( mlt_consumer this )
 335 {
 336         // Get the properties
 337         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 338         return !mlt_properties_get_int( properties, "running" );
 339 }
 340
 341 /** Process properties as AVOptions and apply to AV context obj
 342 */
 343
 344 static void apply_properties( void *obj, mlt_properties properties, int flags )
 345 {
 346         int i;
 347         int count = mlt_properties_count( properties );
 348         for ( i = 0; i < count; i++ )
 349         {
 350                 const char *opt_name = mlt_properties_get_name( properties, i );
 351                 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
 352                 if ( opt != NULL )
 353 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
 354                         av_set_string3( obj, opt_name, mlt_properties_get( properties, opt_name), 0, NULL );
 355 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
 356                         av_set_string2( obj, opt_name, mlt_properties_get( properties, opt_name), 0 );
 357 #else
 358                         av_set_string( obj, opt_name, mlt_properties_get( properties, opt_name) );
 359 #endif
 360         }
 361 }
 362
 363 /** Add an audio output stream
 364 */
 365
 366 static AVStream *add_audio_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
 367 {
 368         // Get the properties
 369         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 370
 371         // Create a new stream
 372         AVStream *st = av_new_stream( oc, 1 );
 373
 374         // If created, then initialise from properties
 375         if ( st != NULL )
 376         {
 377                 AVCodecContext *c = st->codec;
 378
 379                 // Establish defaults from AVOptions
 380                 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
 381
 382                 c->codec_id = codec_id;
 383                 c->codec_type = CODEC_TYPE_AUDIO;
 384
 385                 // Setup multi-threading
 386                 int thread_count = mlt_properties_get_int( properties, "threads" );
 387                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 388                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 389                 if ( thread_count > 1 )
 390                         avcodec_thread_init( c, thread_count );
 391
 392                 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 393                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 394
 395                 // Allow the user to override the audio fourcc
 396                 if ( mlt_properties_get( properties, "atag" ) )
 397                 {
 398                         char *tail = NULL;
 399                         char *arg = mlt_properties_get( properties, "atag" );
 400                         int tag = strtol( arg, &tail, 0);
 401                         if( !tail || *tail )
 402                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 403                         c->codec_tag = tag;
 404                 }
 405
 406                 // Process properties as AVOptions
 407                 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 408
 409                 int audio_qscale = mlt_properties_get_int( properties, "aq" );
 410         if ( audio_qscale > QSCALE_NONE )
 411                 {
 412                         c->flags |= CODEC_FLAG_QSCALE;
 413                         c->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
 414                 }
 415
 416                 // Set parameters controlled by MLT
 417                 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
 418                 c->channels = mlt_properties_get_int( properties, "channels" );
 419
 420                 if ( mlt_properties_get( properties, "alang" ) != NULL )
 421                         strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
 422         }
 423         else
 424         {
 425                 fprintf( stderr, "%s: Could not allocate a stream for audio\n", __FILE__ );
 426         }
 427
 428         return st;
 429 }
 430
 431 static int open_audio( AVFormatContext *oc, AVStream *st, int audio_outbuf_size )
 432 {
 433         // We will return the audio input size from here
 434         int audio_input_frame_size = 0;
 435
 436         // Get the context
 437         AVCodecContext *c = st->codec;
 438
 439         // Find the encoder
 440         AVCodec *codec = avcodec_find_encoder( c->codec_id );
 441
 442         // Continue if codec found and we can open it
 443         if ( codec != NULL && avcodec_open( c, codec ) >= 0 )
 444         {
 445                 // ugly hack for PCM codecs (will be removed ASAP with new PCM
 446                 // support to compute the input frame size in samples
 447                 if ( c->frame_size <= 1 )
 448                 {
 449                         audio_input_frame_size = audio_outbuf_size / c->channels;
 450                         switch(st->codec->codec_id)
 451                         {
 452                                 case CODEC_ID_PCM_S16LE:
 453                                 case CODEC_ID_PCM_S16BE:
 454                                 case CODEC_ID_PCM_U16LE:
 455                                 case CODEC_ID_PCM_U16BE:
 456                                         audio_input_frame_size >>= 1;
 457                                         break;
 458                                 default:
 459                                         break;
 460                         }
 461                 }
 462                 else
 463                 {
 464                         audio_input_frame_size = c->frame_size;
 465                 }
 466
 467                 // Some formats want stream headers to be seperate (hmm)
 468                 if( !strcmp( oc->oformat->name, "mp4" ) ||
 469                         !strcmp( oc->oformat->name, "mov" ) ||
 470                         !strcmp( oc->oformat->name, "3gp" ) )
 471                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 472         }
 473         else
 474         {
 475                 fprintf( stderr, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
 476         }
 477
 478         return audio_input_frame_size;
 479 }
 480
 481 static void close_audio( AVFormatContext *oc, AVStream *st )
 482 {
 483         avcodec_close( st->codec );
 484 }
 485
 486 /** Add a video output stream
 487 */
 488
 489 static AVStream *add_video_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
 490 {
 491         // Get the properties
 492         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 493
 494         // Create a new stream
 495         AVStream *st = av_new_stream( oc, 0 );
 496
 497         if ( st != NULL )
 498         {
 499                 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
 500                 AVCodecContext *c = st->codec;
 501
 502                 // Establish defaults from AVOptions
 503                 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
 504
 505                 c->codec_id = codec_id;
 506                 c->codec_type = CODEC_TYPE_VIDEO;
 507
 508                 // Setup multi-threading
 509                 int thread_count = mlt_properties_get_int( properties, "threads" );
 510                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 511                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 512                 if ( thread_count > 1 )
 513                         avcodec_thread_init( c, thread_count );
 514
 515                 // Process properties as AVOptions
 516                 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 517
 518                 // Set options controlled by MLT
 519                 c->width = mlt_properties_get_int( properties, "width" );
 520                 c->height = mlt_properties_get_int( properties, "height" );
 521                 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
 522                 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
 523                 st->time_base = c->time_base;
 524                 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 525
 526                 if ( mlt_properties_get( properties, "aspect" ) )
 527                 {
 528                         // "-aspect" on ffmpeg command line is display aspect ratio
 529                         double ar = mlt_properties_get_double( properties, "aspect" );
 530                         AVRational rational = av_d2q( ar, 255 );
 531
 532                         // Update the profile and properties as well since this is an alias
 533                         // for mlt properties that correspond to profile settings
 534                         mlt_properties_set_int( properties, "display_aspect_num", rational.num );
 535                         mlt_properties_set_int( properties, "display_aspect_den", rational.den );
 536                         mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
 537                         if ( profile )
 538                         {
 539                                 profile->display_aspect_num = rational.num;
 540                                 profile->display_aspect_den = rational.den;
 541                                 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
 542                         }
 543
 544                         // Now compute the sample aspect ratio
 545                         rational = av_d2q( ar * c->height / c->width, 255 );
 546                         c->sample_aspect_ratio = rational;
 547                         // Update the profile and properties as well since this is an alias
 548                         // for mlt properties that correspond to profile settings
 549                         mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
 550                         mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
 551                         if ( profile )
 552                         {
 553                                 profile->sample_aspect_num = rational.num;
 554                                 profile->sample_aspect_den = rational.den;
 555                                 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
 556                         }
 557                 }
 558                 else
 559                 {
 560                         c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
 561                         c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
 562                 }
 563 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 564                 st->sample_aspect_ratio = c->sample_aspect_ratio;
 565 #endif
 566
 567                 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
 568                 {
 569                         c->flags |= CODEC_FLAG_QSCALE;
 570                         st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
 571                 }
 572
 573                 // Allow the user to override the video fourcc
 574                 if ( mlt_properties_get( properties, "vtag" ) )
 575                 {
 576                         char *tail = NULL;
 577                         const char *arg = mlt_properties_get( properties, "vtag" );
 578                         int tag = strtol( arg, &tail, 0);
 579                         if( !tail || *tail )
 580                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 581                         c->codec_tag = tag;
 582                 }
 583
 584                 // Some formats want stream headers to be seperate
 585                 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
 586                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 587
 588                 // Translate these standard mlt consumer properties to ffmpeg
 589                 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
 590                      mlt_properties_get_int( properties, "deinterlace" ) == 0 )
 591                 {
 592                         if ( mlt_properties_get_int( properties, "ildct" ) )
 593                                 c->flags |= CODEC_FLAG_INTERLACED_DCT;
 594                         if ( mlt_properties_get_int( properties, "ilme" ) )
 595                                 c->flags |= CODEC_FLAG_INTERLACED_ME;
 596                 }
 597
 598                 // parse the ratecontrol override string
 599                 int i;
 600                 char *rc_override = mlt_properties_get( properties, "rc_override" );
 601                 for ( i = 0; rc_override; i++ )
 602                 {
 603                         int start, end, q;
 604                         int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
 605                         if ( e != 3 )
 606                                 fprintf( stderr, "%s: Error parsing rc_override\n", __FILE__ );
 607                         c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
 608                         c->rc_override[i].start_frame = start;
 609                         c->rc_override[i].end_frame = end;
 610                         if ( q > 0 )
 611                         {
 612                                 c->rc_override[i].qscale = q;
 613                                 c->rc_override[i].quality_factor = 1.0;
 614                         }
 615                         else
 616                         {
 617                                 c->rc_override[i].qscale = 0;
 618                                 c->rc_override[i].quality_factor = -q / 100.0;
 619                         }
 620                         rc_override = strchr( rc_override, '/' );
 621                         if ( rc_override )
 622                                 rc_override++;
 623                 }
 624                 c->rc_override_count = i;
 625                 if ( !c->rc_initial_buffer_occupancy )
 626                         c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
 627                 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
 628
 629                 // Setup dual-pass
 630                 i = mlt_properties_get_int( properties, "pass" );
 631                 if ( i == 1 )
 632                         c->flags |= CODEC_FLAG_PASS1;
 633                 else if ( i == 2 )
 634                         c->flags |= CODEC_FLAG_PASS2;
 635                 if ( codec_id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
 636                 {
 637                         char logfilename[1024];
 638                         FILE *f;
 639                         int size;
 640                         char *logbuffer;
 641
 642                         snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
 643                                 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
 644                         if ( c->flags & CODEC_FLAG_PASS1 )
 645                         {
 646                                 f = fopen( logfilename, "w" );
 647                                 if ( !f )
 648                                         perror( logfilename );
 649                                 else
 650                                         mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
 651                         }
 652                         else
 653                         {
 654                                 /* read the log file */
 655                                 f = fopen( logfilename, "r" );
 656                                 if ( !f )
 657                                 {
 658                                         perror(logfilename);
 659                                 }
 660                                 else
 661                                 {
 662                                         mlt_properties_set( properties, "_logfilename", logfilename );
 663                                         fseek( f, 0, SEEK_END );
 664                                         size = ftell( f );
 665                                         fseek( f, 0, SEEK_SET );
 666                                         logbuffer = av_malloc( size + 1 );
 667                                         if ( !logbuffer )
 668                                                 fprintf( stderr, "%s: Could not allocate log buffer\n", __FILE__ );
 669                                         else
 670                                         {
 671                                                 size = fread( logbuffer, 1, size, f );
 672                                                 fclose( f );
 673                                                 logbuffer[size] = '\0';
 674                                                 c->stats_in = logbuffer;
 675                                                 mlt_properties_set_data( properties, "_logbuffer", logbuffer, 0, ( mlt_destructor )av_free, NULL );
 676                                         }
 677                                 }
 678                         }
 679                 }
 680         }
 681         else
 682         {
 683                 fprintf( stderr, "%s: Could not allocate a stream for video\n", __FILE__ );
 684         }
 685
 686         return st;
 687 }
 688
 689 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
 690 {
 691         // Allocate a frame
 692         AVFrame *picture = avcodec_alloc_frame();
 693
 694         // Determine size of the
 695         int size = avpicture_get_size(pix_fmt, width, height);
 696
 697         // Allocate the picture buf
 698         uint8_t *picture_buf = av_malloc(size);
 699
 700         // If we have both, then fill the image
 701         if ( picture != NULL && picture_buf != NULL )
 702         {
 703                 // Fill the frame with the allocated buffer
 704                 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
 705         }
 706         else
 707         {
 708                 // Something failed - clean up what we can
 709                 av_free( picture );
 710                 av_free( picture_buf );
 711                 picture = NULL;
 712         }
 713
 714         return picture;
 715 }
 716
 717 static int open_video(AVFormatContext *oc, AVStream *st)
 718 {
 719         // Get the codec
 720         AVCodecContext *video_enc = st->codec;
 721
 722         // find the video encoder
 723         AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
 724
 725         if( codec && codec->pix_fmts )
 726         {
 727                 const enum PixelFormat *p = codec->pix_fmts;
 728                 for( ; *p!=-1; p++ )
 729                 {
 730                         if( *p == video_enc->pix_fmt )
 731                                 break;
 732                 }
 733                 if( *p == -1 )
 734                         video_enc->pix_fmt = codec->pix_fmts[ 0 ];
 735         }
 736
 737         // Open the codec safely
 738         return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
 739 }
 740
 741 void close_video(AVFormatContext *oc, AVStream *st)
 742 {
 743         avcodec_close(st->codec);
 744 }
 745
 746 static inline long time_difference( struct timeval *time1 )
 747 {
 748         struct timeval time2;
 749         gettimeofday( &time2, NULL );
 750         return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
 751 }
 752
 753 /** The main thread - the argument is simply the consumer.
 754 */
 755
 756 static void *consumer_thread( void *arg )
 757 {
 758         // Map the argument to the object
 759         mlt_consumer this = arg;
 760
 761         // Get the properties
 762         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 763
 764         // Get the terminate on pause property
 765         int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
 766         int terminated = 0;
 767
 768         // Determine if feed is slow (for realtime stuff)
 769         int real_time_output = mlt_properties_get_int( properties, "real_time" );
 770
 771         // Time structures
 772         struct timeval ante;
 773
 774         // Get the frame rate
 775         double fps = mlt_properties_get_double( properties, "fps" );
 776
 777         // Get width and height
 778         int width = mlt_properties_get_int( properties, "width" );
 779         int height = mlt_properties_get_int( properties, "height" );
 780         int img_width = width;
 781         int img_height = height;
 782
 783         // Get default audio properties
 784         mlt_audio_format aud_fmt = mlt_audio_pcm;
 785         int channels = mlt_properties_get_int( properties, "channels" );
 786         int frequency = mlt_properties_get_int( properties, "frequency" );
 787         int16_t *pcm = NULL;
 788         int samples = 0;
 789
 790         // AVFormat audio buffer and frame size
 791         int audio_outbuf_size = 10000;
 792         uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
 793         int audio_input_frame_size = 0;
 794
 795         // AVFormat video buffer and frame count
 796         int frame_count = 0;
 797         int video_outbuf_size = ( 1024 * 1024 );
 798         uint8_t *video_outbuf = av_malloc( video_outbuf_size );
 799
 800         // Used for the frame properties
 801         mlt_frame frame = NULL;
 802         mlt_properties frame_properties = NULL;
 803
 804         // Get the queues
 805         mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
 806         sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
 807
 808         // Need two av pictures for converting
 809         AVFrame *output = NULL;
 810         AVFrame *input = alloc_picture( PIX_FMT_YUV422, width, height );
 811
 812         // For receiving images from an mlt_frame
 813         uint8_t *image;
 814         mlt_image_format img_fmt = mlt_image_yuv422;
 815
 816         // For receiving audio samples back from the fifo
 817         int16_t *buffer = av_malloc( 48000 * 2 );
 818         int count = 0;
 819
 820         // Allocate the context
 821         AVFormatContext *oc = av_alloc_format_context( );
 822
 823         // Streams
 824         AVStream *audio_st = NULL;
 825         AVStream *video_st = NULL;
 826
 827         // Time stamps
 828         double audio_pts = 0;
 829         double video_pts = 0;
 830
 831         // Loop variable
 832         int i;
 833
 834         // Frames despatched
 835         long int frames = 0;
 836         long int total_time = 0;
 837
 838         // Determine the format
 839         AVOutputFormat *fmt = NULL;
 840         char *filename = mlt_properties_get( properties, "target" );
 841         char *format = mlt_properties_get( properties, "f" );
 842         char *vcodec = mlt_properties_get( properties, "vcodec" );
 843         char *acodec = mlt_properties_get( properties, "acodec" );
 844
 845         // Used to store and override codec ids
 846         int audio_codec_id;
 847         int video_codec_id;
 848
 849         // Check for user selected format first
 850         if ( format != NULL )
 851                 fmt = guess_format( format, NULL, NULL );
 852
 853         // Otherwise check on the filename
 854         if ( fmt == NULL && filename != NULL )
 855                 fmt = guess_format( NULL, filename, NULL );
 856
 857         // Otherwise default to mpeg
 858         if ( fmt == NULL )
 859                 fmt = guess_format( "mpeg", NULL, NULL );
 860
 861         // We need a filename - default to stdout?
 862         if ( filename == NULL || !strcmp( filename, "" ) )
 863                 filename = "pipe:";
 864
 865         // Get the codec ids selected
 866         audio_codec_id = fmt->audio_codec;
 867         video_codec_id = fmt->video_codec;
 868
 869         // Check for audio codec overides
 870         if ( acodec != NULL )
 871         {
 872                 AVCodec *p = avcodec_find_encoder_by_name( acodec );
 873                 if ( p != NULL )
 874                         audio_codec_id = p->id;
 875                 else
 876                         fprintf( stderr, "%s: audio codec %s unrecognised - ignoring\n", __FILE__, acodec );
 877         }
 878
 879         // Check for video codec overides
 880         if ( vcodec != NULL )
 881         {
 882                 AVCodec *p = avcodec_find_encoder_by_name( vcodec );
 883                 if ( p != NULL )
 884                         video_codec_id = p->id;
 885                 else
 886                         fprintf( stderr, "%s: video codec %s unrecognised - ignoring\n", __FILE__, vcodec );
 887         }
 888
 889         // Write metadata
 890         char *tmp = NULL;
 891         int metavalue;
 892
 893         tmp = mlt_properties_get( properties, "meta.attr.title.markup");
 894         if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
 895
 896         tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
 897         if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
 898
 899         tmp = mlt_properties_get( properties, "meta.attr.author.markup");
 900         if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
 901
 902         tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
 903         if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
 904
 905         tmp = mlt_properties_get( properties, "meta.attr.album.markup");
 906         if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
 907
 908         metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
 909         if (metavalue != 0) oc->year = metavalue;
 910
 911         metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
 912         if (metavalue != 0) oc->track = metavalue;
 913
 914         oc->oformat = fmt;
 915         snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
 916
 917         // Add audio and video streams
 918         if ( fmt->video_codec != CODEC_ID_NONE )
 919                 video_st = add_video_stream( this, oc, video_codec_id );
 920         if ( fmt->audio_codec != CODEC_ID_NONE )
 921                 audio_st = add_audio_stream( this, oc, audio_codec_id );
 922
 923         // Set the parameters (even though we have none...)
 924         if ( av_set_parameters(oc, NULL) >= 0 )
 925         {
 926                 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
 927                 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
 928
 929                 // Process properties as AVOptions
 930                 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
 931
 932                 if ( video_st && !open_video( oc, video_st ) )
 933                         video_st = NULL;
 934                 if ( audio_st )
 935                         audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
 936
 937                 // Open the output file, if needed
 938                 if ( !( fmt->flags & AVFMT_NOFILE ) )
 939                 {
 940                         if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
 941                         {
 942                                 fprintf( stderr, "%s: Could not open '%s'\n", __FILE__, filename );
 943                                 mlt_properties_set_int( properties, "running", 0 );
 944                         }
 945                 }
 946
 947                 // Write the stream header, if any
 948                 if ( mlt_properties_get_int( properties, "running" ) )
 949                         av_write_header( oc );
 950         }
 951         else
 952         {
 953                 fprintf( stderr, "%s: Invalid output format parameters\n", __FILE__ );
 954                 mlt_properties_set_int( properties, "running", 0 );
 955         }
 956
 957         // Allocate picture
 958         if ( video_st )
 959                 output = alloc_picture( video_st->codec->pix_fmt, width, height );
 960
 961         // Last check - need at least one stream
 962         if ( audio_st == NULL && video_st == NULL )
 963                 mlt_properties_set_int( properties, "running", 0 );
 964
 965         // Get the starting time (can ignore the times above)
 966         gettimeofday( &ante, NULL );
 967
 968         // Loop while running
 969         while( mlt_properties_get_int( properties, "running" ) && !terminated )
 970         {
 971                 // Get the frame
 972                 frame = mlt_consumer_rt_frame( this );
 973
 974                 // Check that we have a frame to work with
 975                 if ( frame != NULL )
 976                 {
 977                         // Increment frames despatched
 978                         frames ++;
 979
 980                         // Default audio args
 981                         frame_properties = MLT_FRAME_PROPERTIES( frame );
 982
 983                         // Check for the terminated condition
 984                         terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
 985
 986                         // Get audio and append to the fifo
 987                         if ( !terminated && audio_st )
 988                         {
 989                                 samples = mlt_sample_calculator( fps, frequency, count ++ );
 990                                 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
 991
 992                                 // Create the fifo if we don't have one
 993                                 if ( fifo == NULL )
 994                                 {
 995                                         fifo = sample_fifo_init( frequency, channels );
 996                                         mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
 997                                 }
 998
 999                                 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1000                                         memset( pcm, 0, samples * channels * 2 );
1001
1002                                 // Append the samples
1003                                 sample_fifo_append( fifo, pcm, samples * channels );
1004                                 total_time += ( samples * 1000000 ) / frequency;
1005                         }
1006
1007                         // Encode the image
1008                         if ( !terminated && video_st )
1009                                 mlt_deque_push_back( queue, frame );
1010                         else
1011                                 mlt_frame_close( frame );
1012                 }
1013
1014                 // While we have stuff to process, process...
1015                 while ( 1 )
1016                 {
1017                         if (audio_st)
1018                                 audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
1019                         else
1020                                 audio_pts = 0.0;
1021
1022                         if (video_st)
1023                                 video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
1024                         else
1025                                 video_pts = 0.0;
1026
1027                         // Write interleaved audio and video frames
1028                         if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
1029                         {
1030                                 if ( channels * audio_input_frame_size < sample_fifo_used( fifo ) )
1031                                 {
1032                                         AVCodecContext *c;
1033                                         AVPacket pkt;
1034                                         av_init_packet( &pkt );
1035
1036                                         c = audio_st->codec;
1037
1038                                         sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1039
1040                                         pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1041                                         // Write the compressed frame in the media file
1042                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1043                                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1044                                         pkt.flags |= PKT_FLAG_KEY;
1045                                         pkt.stream_index= audio_st->index;
1046                                         pkt.data= audio_outbuf;
1047
1048                                         if ( pkt.size )
1049                                                 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
1050                                                         fprintf( stderr, "%s: Error while writing audio frame\n", __FILE__ );
1051
1052                                         audio_pts += c->frame_size;
1053                                 }
1054                                 else
1055                                 {
1056                                         break;
1057                                 }
1058                         }
1059                         else if ( video_st )
1060                         {
1061                                 if ( mlt_deque_count( queue ) )
1062                                 {
1063                                         int out_size, ret;
1064                                         AVCodecContext *c;
1065
1066                                         frame = mlt_deque_pop_front( queue );
1067                                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1068
1069                                         c = video_st->codec;
1070
1071                                         if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1072                                         {
1073                                                 int i = 0;
1074                                                 int j = 0;
1075                                                 uint8_t *p;
1076                                                 uint8_t *q;
1077
1078                                                 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1079
1080                                                 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1081
1082                                                 q = image;
1083
1084                                                 // Convert the mlt frame to an AVPicture
1085                                                 for ( i = 0; i < height; i ++ )
1086                                                 {
1087                                                         p = input->data[ 0 ] + i * input->linesize[ 0 ];
1088                                                         j = width;
1089                                                         while( j -- )
1090                                                         {
1091                                                                 *p ++ = *q ++;
1092                                                                 *p ++ = *q ++;
1093                                                         }
1094                                                 }
1095
1096                                                 // Do the colour space conversion
1097 #ifdef SWSCALE
1098                                                 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUV422,
1099                                                         width, height, video_st->codec->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL);
1100                                                 sws_scale( context, input->data, input->linesize, 0, height,
1101                                                         output->data, output->linesize);
1102                                                 sws_freeContext( context );
1103 #else
1104                                                 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUV422, width, height );
1105 #endif
1106
1107                                                 // Apply the alpha if applicable
1108                                                 if ( video_st->codec->pix_fmt == PIX_FMT_RGBA32 )
1109                                                 {
1110                                                         uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1111                                                         register int n;
1112
1113                                                         for ( i = 0; i < height; i ++ )
1114                                                         {
1115                                                                 n = ( width + 7 ) / 8;
1116                                                                 p = output->data[ 0 ] + i * output->linesize[ 0 ];
1117
1118                                                                 #ifndef __DARWIN__
1119                                                                 p += 3;
1120                                                                 #endif
1121
1122                                                                 switch( width % 8 )
1123                                                                 {
1124                                                                         case 0: do { *p = *alpha++; p += 4;
1125                                                                         case 7:          *p = *alpha++; p += 4;
1126                                                                         case 6:          *p = *alpha++; p += 4;
1127                                                                         case 5:          *p = *alpha++; p += 4;
1128                                                                         case 4:          *p = *alpha++; p += 4;
1129                                                                         case 3:          *p = *alpha++; p += 4;
1130                                                                         case 2:          *p = *alpha++; p += 4;
1131                                                                         case 1:          *p = *alpha++; p += 4;
1132                                                                                         }
1133                                                                                         while( --n );
1134                                                                 }
1135                                                         }
1136                                                 }
1137                                         }
1138
1139                                         if (oc->oformat->flags & AVFMT_RAWPICTURE)
1140                                         {
1141                                                 // raw video case. The API will change slightly in the near future for that
1142                                                 AVPacket pkt;
1143                                                 av_init_packet(&pkt);
1144
1145                                                 pkt.flags |= PKT_FLAG_KEY;
1146                                                 pkt.stream_index= video_st->index;
1147                                                 pkt.data= (uint8_t *)output;
1148                                                 pkt.size= sizeof(AVPicture);
1149
1150                                                 ret = av_write_frame(oc, &pkt);
1151                                                 video_pts += c->frame_size;
1152                                         }
1153                                         else
1154                                         {
1155                                                 // Set the quality
1156                                                 output->quality = video_st->quality;
1157
1158                                                 // Set frame interlace hints
1159                                                 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1160                                                 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1161
1162                                                 // Encode the image
1163                                                 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1164
1165                                                 // If zero size, it means the image was buffered
1166                                                 if (out_size > 0)
1167                                                 {
1168                                                         AVPacket pkt;
1169                                                         av_init_packet( &pkt );
1170
1171                                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1172                                                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1173                                                         if( c->coded_frame && c->coded_frame->key_frame )
1174                                                                 pkt.flags |= PKT_FLAG_KEY;
1175                                                         pkt.stream_index= video_st->index;
1176                                                         pkt.data= video_outbuf;
1177                                                         pkt.size= out_size;
1178
1179                                                         // write the compressed frame in the media file
1180                                                         ret = av_interleaved_write_frame(oc, &pkt);
1181                                                         video_pts += c->frame_size;
1182
1183                                                         // Dual pass logging
1184                                                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out)
1185                                                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1186                                                 }
1187                                                 else
1188                                                 {
1189                                                         fprintf( stderr, "%s: error with video encode\n", __FILE__ );
1190                                                 }
1191                                         }
1192                                         frame_count++;
1193                                         mlt_frame_close( frame );
1194                                 }
1195                                 else
1196                                 {
1197                                         break;
1198                                 }
1199                         }
1200                 }
1201
1202                 if ( real_time_output == 1 && frames % 12 == 0 )
1203                 {
1204                         long passed = time_difference( &ante );
1205                         if ( fifo != NULL )
1206                         {
1207                                 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1208                                 passed -= pending;
1209                         }
1210                         if ( passed < total_time )
1211                         {
1212                                 long total = ( total_time - passed );
1213                                 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1214                                 nanosleep( &t, NULL );
1215                         }
1216                 }
1217         }
1218
1219 #ifdef FLUSH
1220         if ( ! real_time_output )
1221         {
1222                 // Flush audio fifo
1223                 if ( audio_st && audio_st->codec->frame_size > 1 ) for (;;)
1224                 {
1225                         AVCodecContext *c = audio_st->codec;
1226                         AVPacket pkt;
1227                         av_init_packet( &pkt );
1228                         pkt.size = 0;
1229
1230                         if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1231                                 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1232                         {
1233                                 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1234                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1235                         }
1236                         if ( pkt.size <= 0 )
1237                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1238                         if ( pkt.size <= 0 )
1239                                 break;
1240
1241                         // Write the compressed frame in the media file
1242                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1243                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1244                         pkt.flags |= PKT_FLAG_KEY;
1245                         pkt.stream_index = audio_st->index;
1246                         pkt.data = audio_outbuf;
1247                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1248                         {
1249                                 fprintf( stderr, "%s: Error while writing flushed audio frame\n", __FILE__ );
1250                                 break;
1251                         }
1252                 }
1253
1254                 // Flush video
1255                 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1256                 {
1257                         AVCodecContext *c = video_st->codec;
1258                         AVPacket pkt;
1259                         av_init_packet( &pkt );
1260
1261                         // Encode the image
1262                         pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1263                         if ( pkt.size <= 0 )
1264                                 break;
1265
1266                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1267                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1268                         if( c->coded_frame && c->coded_frame->key_frame )
1269                                 pkt.flags |= PKT_FLAG_KEY;
1270                         pkt.stream_index = video_st->index;
1271                         pkt.data = video_outbuf;
1272
1273                         // write the compressed frame in the media file
1274                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1275                         {
1276                                 fprintf( stderr, "%s: Error while writing flushed video frame\n". __FILE__ );
1277                                 break;
1278                         }
1279                 }
1280         }
1281 #endif
1282
1283         // close each codec
1284         if (video_st)
1285                 close_video(oc, video_st);
1286         if (audio_st)
1287                 close_audio(oc, audio_st);
1288
1289         // Write the trailer, if any
1290         av_write_trailer(oc);
1291
1292         // Free the streams
1293         for(i = 0; i < oc->nb_streams; i++)
1294                 av_freep(&oc->streams[i]);
1295
1296         // Close the output file
1297         if (!(fmt->flags & AVFMT_NOFILE))
1298 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1299                 url_fclose(oc->pb);
1300 #else
1301                 url_fclose(&oc->pb);
1302 #endif
1303
1304         // Clean up input and output frames
1305         if ( output )
1306                 av_free( output->data[0] );
1307         av_free( output );
1308         av_free( input->data[0] );
1309         av_free( input );
1310         av_free( video_outbuf );
1311         av_free( buffer );
1312
1313         // Free the stream
1314         av_free(oc);
1315
1316         // Just in case we terminated on pause
1317         mlt_properties_set_int( properties, "running", 0 );
1318
1319         mlt_consumer_stopped( this );
1320
1321         if ( mlt_properties_get_int( properties, "pass" ) == 2 )
1322         {
1323                 // Remove the dual pass log file
1324                 if ( mlt_properties_get( properties, "_logfilename" ) )
1325                         remove( mlt_properties_get( properties, "_logfilename" ) );
1326
1327                 // Remove the x264 dual pass logs
1328                 char *cwd = getcwd( NULL, 0 );
1329                 char *file = "x264_2pass.log";
1330                 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1331                 sprintf( full, "%s/%s", cwd, file );
1332                 remove( full );
1333                 free( full );
1334                 file = "x264_2pass.log.temp";
1335                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1336                 sprintf( full, "%s/%s", cwd, file );
1337                 remove( full );
1338                 free( full );
1339                 free( cwd );
1340                 remove( "x264_2pass.log.temp" );
1341         }
1342
1343         return NULL;
1344 }
1345
1346 /** Close the consumer.
1347 */
1348
1349 static void consumer_close( mlt_consumer this )
1350 {
1351         // Stop the consumer
1352         mlt_consumer_stop( this );
1353
1354         // Close the parent
1355         mlt_consumer_close( this );
1356
1357         // Free the memory
1358         free( this );
1359 }