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
 196         // Check that we're not already running
 197         if ( !mlt_properties_get_int( properties, "running" ) )
 198         {
 199                 // Allocate a thread
 200                 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
 201
 202                 // Get the width and height
 203                 int width = mlt_properties_get_int( properties, "width" );
 204                 int height = mlt_properties_get_int( properties, "height" );
 205
 206                 // Obtain the size property
 207                 char *size = mlt_properties_get( properties, "s" );
 208
 209                 // Interpret it
 210                 if ( size != NULL )
 211                 {
 212                         int tw, th;
 213                         if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
 214                         {
 215                                 width = tw;
 216                                 height = th;
 217                         }
 218                         else
 219                         {
 220                                 fprintf( stderr, "%s: Invalid size property %s - ignoring.\n", __FILE__, size );
 221                         }
 222                 }
 223
 224                 // Now ensure we honour the multiple of two requested by libavformat
 225                 width = ( width / 2 ) * 2;
 226                 height = ( height / 2 ) * 2;
 227                 mlt_properties_set_int( properties, "width", width );
 228                 mlt_properties_set_int( properties, "height", height );
 229
 230                 // We need to set these on the profile as well because the s property is
 231                 // an alias to mlt properties that correspond to profile settings.
 232                 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
 233                 if ( profile )
 234                 {
 235                         profile->width = width;
 236                         profile->height = height;
 237                 }
 238
 239                 // Handle the ffmpeg command line "-r" property for frame rate
 240                 if ( mlt_properties_get( properties, "r" ) )
 241                 {
 242                         double frame_rate = mlt_properties_get_double( properties, "r" );
 243                         AVRational rational = av_d2q( frame_rate, 255 );
 244                         mlt_properties_set_int( properties, "frame_rate_num", rational.num );
 245                         mlt_properties_set_int( properties, "frame_rate_den", rational.den );
 246                         if ( profile )
 247                         {
 248                                 profile->frame_rate_num = rational.num;
 249                                 profile->frame_rate_den = rational.den;
 250                                 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
 251                         }
 252                 }
 253
 254                 // Apply AVOptions that are synonyms for standard mlt_consumer options
 255                 if ( mlt_properties_get( properties, "ac" ) )
 256                         mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
 257                 if ( mlt_properties_get( properties, "ar" ) )
 258                         mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
 259
 260                 // Assign the thread to properties
 261                 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
 262
 263                 // Set the running state
 264                 mlt_properties_set_int( properties, "running", 1 );
 265
 266                 // Create the thread
 267                 pthread_create( thread, NULL, consumer_thread, this );
 268         }
 269         return 0;
 270 }
 271
 272 /** Stop the consumer.
 273 */
 274
 275 static int consumer_stop( mlt_consumer this )
 276 {
 277         // Get the properties
 278         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 279
 280         // Check that we're running
 281         if ( mlt_properties_get_int( properties, "running" ) )
 282         {
 283                 // Get the thread
 284                 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
 285
 286                 // Stop the thread
 287                 mlt_properties_set_int( properties, "running", 0 );
 288
 289                 // Wait for termination
 290                 pthread_join( *thread, NULL );
 291         }
 292
 293         return 0;
 294 }
 295
 296 /** Determine if the consumer is stopped.
 297 */
 298
 299 static int consumer_is_stopped( mlt_consumer this )
 300 {
 301         // Get the properties
 302         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 303         return !mlt_properties_get_int( properties, "running" );
 304 }
 305
 306 /** Process properties as AVOptions and apply to AV context obj
 307 */
 308
 309 static void apply_properties( void *obj, mlt_properties properties, int flags )
 310 {
 311         int i;
 312         int count = mlt_properties_count( properties );
 313         for ( i = 0; i < count; i++ )
 314         {
 315                 const char *opt_name = mlt_properties_get_name( properties, i );
 316                 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
 317                 if ( opt != NULL )
 318 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
 319                         av_set_string3( obj, opt_name, mlt_properties_get( properties, opt_name), 0, NULL );
 320 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
 321                         av_set_string2( obj, opt_name, mlt_properties_get( properties, opt_name), 0 );
 322 #else
 323                         av_set_string( obj, opt_name, mlt_properties_get( properties, opt_name) );
 324 #endif
 325         }
 326 }
 327
 328 /** Add an audio output stream
 329 */
 330
 331 static AVStream *add_audio_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
 332 {
 333         // Get the properties
 334         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 335
 336         // Create a new stream
 337         AVStream *st = av_new_stream( oc, 1 );
 338
 339         // If created, then initialise from properties
 340         if ( st != NULL )
 341         {
 342                 AVCodecContext *c = st->codec;
 343
 344                 // Establish defaults from AVOptions
 345                 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
 346
 347                 c->codec_id = codec_id;
 348                 c->codec_type = CODEC_TYPE_AUDIO;
 349
 350                 // Setup multi-threading
 351                 int thread_count = mlt_properties_get_int( properties, "threads" );
 352                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 353                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 354                 if ( thread_count > 1 )
 355                         avcodec_thread_init( c, thread_count );
 356
 357                 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 358                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 359
 360                 // Allow the user to override the audio fourcc
 361                 if ( mlt_properties_get( properties, "atag" ) )
 362                 {
 363                         char *tail = NULL;
 364                         char *arg = mlt_properties_get( properties, "atag" );
 365                         int tag = strtol( arg, &tail, 0);
 366                         if( !tail || *tail )
 367                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 368                         c->codec_tag = tag;
 369                 }
 370
 371                 // Process properties as AVOptions
 372                 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 373
 374                 int audio_qscale = mlt_properties_get_int( properties, "aq" );
 375         if ( audio_qscale > QSCALE_NONE )
 376                 {
 377                         c->flags |= CODEC_FLAG_QSCALE;
 378                         c->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
 379                 }
 380
 381                 // Set parameters controlled by MLT
 382                 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
 383                 c->channels = mlt_properties_get_int( properties, "channels" );
 384
 385                 if ( mlt_properties_get( properties, "alang" ) != NULL )
 386                         strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
 387         }
 388         else
 389         {
 390                 fprintf( stderr, "%s: Could not allocate a stream for audio\n", __FILE__ );
 391         }
 392
 393         return st;
 394 }
 395
 396 static int open_audio( AVFormatContext *oc, AVStream *st, int audio_outbuf_size )
 397 {
 398         // We will return the audio input size from here
 399         int audio_input_frame_size = 0;
 400
 401         // Get the context
 402         AVCodecContext *c = st->codec;
 403
 404         // Find the encoder
 405         AVCodec *codec = avcodec_find_encoder( c->codec_id );
 406
 407         // Continue if codec found and we can open it
 408         if ( codec != NULL && avcodec_open( c, codec ) >= 0 )
 409         {
 410                 // ugly hack for PCM codecs (will be removed ASAP with new PCM
 411                 // support to compute the input frame size in samples
 412                 if ( c->frame_size <= 1 )
 413                 {
 414                         audio_input_frame_size = audio_outbuf_size / c->channels;
 415                         switch(st->codec->codec_id)
 416                         {
 417                                 case CODEC_ID_PCM_S16LE:
 418                                 case CODEC_ID_PCM_S16BE:
 419                                 case CODEC_ID_PCM_U16LE:
 420                                 case CODEC_ID_PCM_U16BE:
 421                                         audio_input_frame_size >>= 1;
 422                                         break;
 423                                 default:
 424                                         break;
 425                         }
 426                 }
 427                 else
 428                 {
 429                         audio_input_frame_size = c->frame_size;
 430                 }
 431
 432                 // Some formats want stream headers to be seperate (hmm)
 433                 if( !strcmp( oc->oformat->name, "mp4" ) ||
 434                         !strcmp( oc->oformat->name, "mov" ) ||
 435                         !strcmp( oc->oformat->name, "3gp" ) )
 436                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 437         }
 438         else
 439         {
 440                 fprintf( stderr, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
 441         }
 442
 443         return audio_input_frame_size;
 444 }
 445
 446 static void close_audio( AVFormatContext *oc, AVStream *st )
 447 {
 448         avcodec_close( st->codec );
 449 }
 450
 451 /** Add a video output stream
 452 */
 453
 454 static AVStream *add_video_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
 455 {
 456         // Get the properties
 457         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 458
 459         // Create a new stream
 460         AVStream *st = av_new_stream( oc, 0 );
 461
 462         if ( st != NULL )
 463         {
 464                 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
 465                 AVCodecContext *c = st->codec;
 466
 467                 // Establish defaults from AVOptions
 468                 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
 469
 470                 c->codec_id = codec_id;
 471                 c->codec_type = CODEC_TYPE_VIDEO;
 472
 473                 // Setup multi-threading
 474                 int thread_count = mlt_properties_get_int( properties, "threads" );
 475                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 476                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 477                 if ( thread_count > 1 )
 478                         avcodec_thread_init( c, thread_count );
 479
 480                 // Process properties as AVOptions
 481                 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 482
 483                 // Set options controlled by MLT
 484                 c->width = mlt_properties_get_int( properties, "width" );
 485                 c->height = mlt_properties_get_int( properties, "height" );
 486                 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
 487                 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
 488                 st->time_base = c->time_base;
 489                 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 490
 491                 if ( codec_id == CODEC_ID_DVVIDEO )
 492                 {
 493                         // Compensate for FFmpeg's notion of DV aspect ratios, which are
 494                         // based upon a width of 704. Since we do not have a normaliser
 495                         // that crops (nor is cropping 720 wide ITU-R 601 video always desirable)
 496                         // we just coerce the values to facilitate a passive behaviour through
 497                         // the rescale normaliser when using equivalent producers and consumers.
 498                         // = display_aspect / (width * height)
 499                         double ar = mlt_properties_get_double( properties, "aspect_ratio" );
 500                         if ( ar == 8.0/9.0 )  // 4:3 NTSC
 501                         {
 502                                 c->sample_aspect_ratio.num = 10;
 503                                 c->sample_aspect_ratio.den = 11;
 504                         }
 505                         else if ( ar == 16.0/15.0 ) // 4:3 PAL
 506                         {
 507                                 c->sample_aspect_ratio.num = 59;
 508                                 c->sample_aspect_ratio.den = 54;
 509                         }
 510                         else if ( ar == 32.0/27.0 ) // 16:9 NTSC
 511                         {
 512                                 c->sample_aspect_ratio.num = 40;
 513                                 c->sample_aspect_ratio.den = 33;
 514                         }
 515                         else // 16:9 PAL
 516                         {
 517                                 c->sample_aspect_ratio.num = 118;
 518                                 c->sample_aspect_ratio.den = 82;
 519                         }
 520                 }
 521                 else if ( mlt_properties_get( properties, "aspect" ) )
 522                 {
 523                         // "-aspect" on ffmpeg command line is display aspect ratio
 524                         double ar = mlt_properties_get_double( properties, "aspect" );
 525                         AVRational rational = av_d2q( ar, 255 );
 526
 527                         // Update the profile and properties as well since this is an alias
 528                         // for mlt properties that correspond to profile settings
 529                         mlt_properties_set_int( properties, "display_aspect_num", rational.num );
 530                         mlt_properties_set_int( properties, "display_aspect_den", rational.den );
 531                         mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
 532                         if ( profile )
 533                         {
 534                                 profile->display_aspect_num = rational.num;
 535                                 profile->display_aspect_den = rational.den;
 536                                 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
 537                         }
 538
 539                         // Now compute the sample aspect ratio
 540                         rational = av_d2q( ar * c->height / c->width, 255 );
 541                         c->sample_aspect_ratio = rational;
 542                         // Update the profile and properties as well since this is an alias
 543                         // for mlt properties that correspond to profile settings
 544                         mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
 545                         mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
 546                         if ( profile )
 547                         {
 548                                 profile->sample_aspect_num = rational.num;
 549                                 profile->sample_aspect_den = rational.den;
 550                                 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
 551                         }
 552
 553                 }
 554                 else
 555                 {
 556                         c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
 557                         c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
 558                 }
 559 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 560                 st->sample_aspect_ratio = c->sample_aspect_ratio;
 561 #endif
 562
 563                 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
 564                 {
 565                         c->flags |= CODEC_FLAG_QSCALE;
 566                         st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
 567                 }
 568
 569                 // Allow the user to override the video fourcc
 570                 if ( mlt_properties_get( properties, "vtag" ) )
 571                 {
 572                         char *tail = NULL;
 573                         const char *arg = mlt_properties_get( properties, "vtag" );
 574                         int tag = strtol( arg, &tail, 0);
 575                         if( !tail || *tail )
 576                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 577                         c->codec_tag = tag;
 578                 }
 579
 580                 // Some formats want stream headers to be seperate
 581                 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
 582                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 583
 584                 // Translate these standard mlt consumer properties to ffmpeg
 585                 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
 586                      mlt_properties_get_int( properties, "deinterlace" ) == 0 )
 587                 {
 588                         if ( mlt_properties_get_int( properties, "ildct" ) )
 589                                 c->flags |= CODEC_FLAG_INTERLACED_DCT;
 590                         if ( mlt_properties_get_int( properties, "ilme" ) )
 591                                 c->flags |= CODEC_FLAG_INTERLACED_ME;
 592                 }
 593
 594                 // parse the ratecontrol override string
 595                 int i;
 596                 char *rc_override = mlt_properties_get( properties, "rc_override" );
 597                 for ( i = 0; rc_override; i++ )
 598                 {
 599                         int start, end, q;
 600                         int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
 601                         if ( e != 3 )
 602                                 fprintf( stderr, "%s: Error parsing rc_override\n", __FILE__ );
 603                         c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
 604                         c->rc_override[i].start_frame = start;
 605                         c->rc_override[i].end_frame = end;
 606                         if ( q > 0 )
 607                         {
 608                                 c->rc_override[i].qscale = q;
 609                                 c->rc_override[i].quality_factor = 1.0;
 610                         }
 611                         else
 612                         {
 613                                 c->rc_override[i].qscale = 0;
 614                                 c->rc_override[i].quality_factor = -q / 100.0;
 615                         }
 616                         rc_override = strchr( rc_override, '/' );
 617                         if ( rc_override )
 618                                 rc_override++;
 619                 }
 620                 c->rc_override_count = i;
 621                 if ( !c->rc_initial_buffer_occupancy )
 622                         c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
 623                 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
 624
 625                 // Setup dual-pass
 626                 i = mlt_properties_get_int( properties, "pass" );
 627                 if ( i == 1 )
 628                         c->flags |= CODEC_FLAG_PASS1;
 629                 else if ( i == 2 )
 630                         c->flags |= CODEC_FLAG_PASS2;
 631                 if ( codec_id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
 632                 {
 633                         char logfilename[1024];
 634                         FILE *f;
 635                         int size;
 636                         char *logbuffer;
 637
 638                         snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
 639                                 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
 640                         if ( c->flags & CODEC_FLAG_PASS1 )
 641                         {
 642                                 f = fopen( logfilename, "w" );
 643                                 if ( !f )
 644                                         perror( logfilename );
 645                                 else
 646                                         mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
 647                         }
 648                         else
 649                         {
 650                                 /* read the log file */
 651                                 f = fopen( logfilename, "r" );
 652                                 if ( !f )
 653                                 {
 654                                         perror(logfilename);
 655                                 }
 656                                 else
 657                                 {
 658                                         mlt_properties_set( properties, "_logfilename", logfilename );
 659                                         fseek( f, 0, SEEK_END );
 660                                         size = ftell( f );
 661                                         fseek( f, 0, SEEK_SET );
 662                                         logbuffer = av_malloc( size + 1 );
 663                                         if ( !logbuffer )
 664                                                 fprintf( stderr, "%s: Could not allocate log buffer\n", __FILE__ );
 665                                         else
 666                                         {
 667                                                 size = fread( logbuffer, 1, size, f );
 668                                                 fclose( f );
 669                                                 logbuffer[size] = '\0';
 670                                                 c->stats_in = logbuffer;
 671                                                 mlt_properties_set_data( properties, "_logbuffer", logbuffer, 0, ( mlt_destructor )av_free, NULL );
 672                                         }
 673                                 }
 674                         }
 675                 }
 676         }
 677         else
 678         {
 679                 fprintf( stderr, "%s: Could not allocate a stream for video\n", __FILE__ );
 680         }
 681
 682         return st;
 683 }
 684
 685 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
 686 {
 687         // Allocate a frame
 688         AVFrame *picture = avcodec_alloc_frame();
 689
 690         // Determine size of the
 691         int size = avpicture_get_size(pix_fmt, width, height);
 692
 693         // Allocate the picture buf
 694         uint8_t *picture_buf = av_malloc(size);
 695
 696         // If we have both, then fill the image
 697         if ( picture != NULL && picture_buf != NULL )
 698         {
 699                 // Fill the frame with the allocated buffer
 700                 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
 701         }
 702         else
 703         {
 704                 // Something failed - clean up what we can
 705                 av_free( picture );
 706                 av_free( picture_buf );
 707                 picture = NULL;
 708         }
 709
 710         return picture;
 711 }
 712
 713 static int open_video(AVFormatContext *oc, AVStream *st)
 714 {
 715         // Get the codec
 716         AVCodecContext *video_enc = st->codec;
 717
 718         // find the video encoder
 719         AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
 720
 721         if( codec && codec->pix_fmts )
 722         {
 723                 const enum PixelFormat *p = codec->pix_fmts;
 724                 for( ; *p!=-1; p++ )
 725                 {
 726                         if( *p == video_enc->pix_fmt )
 727                                 break;
 728                 }
 729                 if( *p == -1 )
 730                         video_enc->pix_fmt = codec->pix_fmts[ 0 ];
 731         }
 732
 733         // Open the codec safely
 734         return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
 735 }
 736
 737 void close_video(AVFormatContext *oc, AVStream *st)
 738 {
 739         avcodec_close(st->codec);
 740 }
 741
 742 static inline long time_difference( struct timeval *time1 )
 743 {
 744         struct timeval time2;
 745         gettimeofday( &time2, NULL );
 746         return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
 747 }
 748
 749 /** The main thread - the argument is simply the consumer.
 750 */
 751
 752 static void *consumer_thread( void *arg )
 753 {
 754         // Map the argument to the object
 755         mlt_consumer this = arg;
 756
 757         // Get the properties
 758         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 759
 760         // Get the terminate on pause property
 761         int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
 762         int terminated = 0;
 763
 764         // Determine if feed is slow (for realtime stuff)
 765         int real_time_output = mlt_properties_get_int( properties, "real_time" );
 766
 767         // Time structures
 768         struct timeval ante;
 769
 770         // Get the frame rate
 771         double fps = mlt_properties_get_double( properties, "fps" );
 772
 773         // Get width and height
 774         int width = mlt_properties_get_int( properties, "width" );
 775         int height = mlt_properties_get_int( properties, "height" );
 776         int img_width = width;
 777         int img_height = height;
 778
 779         // Get default audio properties
 780         mlt_audio_format aud_fmt = mlt_audio_pcm;
 781         int channels = mlt_properties_get_int( properties, "channels" );
 782         int frequency = mlt_properties_get_int( properties, "frequency" );
 783         int16_t *pcm = NULL;
 784         int samples = 0;
 785
 786         // AVFormat audio buffer and frame size
 787         int audio_outbuf_size = 10000;
 788         uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
 789         int audio_input_frame_size = 0;
 790
 791         // AVFormat video buffer and frame count
 792         int frame_count = 0;
 793         int video_outbuf_size = ( 1024 * 1024 );
 794         uint8_t *video_outbuf = av_malloc( video_outbuf_size );
 795
 796         // Used for the frame properties
 797         mlt_frame frame = NULL;
 798         mlt_properties frame_properties = NULL;
 799
 800         // Get the queues
 801         mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
 802         sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
 803
 804         // Need two av pictures for converting
 805         AVFrame *output = NULL;
 806         AVFrame *input = alloc_picture( PIX_FMT_YUV422, width, height );
 807
 808         // For receiving images from an mlt_frame
 809         uint8_t *image;
 810         mlt_image_format img_fmt = mlt_image_yuv422;
 811
 812         // For receiving audio samples back from the fifo
 813         int16_t *buffer = av_malloc( 48000 * 2 );
 814         int count = 0;
 815
 816         // Allocate the context
 817         AVFormatContext *oc = av_alloc_format_context( );
 818
 819         // Streams
 820         AVStream *audio_st = NULL;
 821         AVStream *video_st = NULL;
 822
 823         // Time stamps
 824         double audio_pts = 0;
 825         double video_pts = 0;
 826
 827         // Loop variable
 828         int i;
 829
 830         // Frames despatched
 831         long int frames = 0;
 832         long int total_time = 0;
 833
 834         // Determine the format
 835         AVOutputFormat *fmt = NULL;
 836         char *filename = mlt_properties_get( properties, "target" );
 837         char *format = mlt_properties_get( properties, "f" );
 838         char *vcodec = mlt_properties_get( properties, "vcodec" );
 839         char *acodec = mlt_properties_get( properties, "acodec" );
 840
 841         // Used to store and override codec ids
 842         int audio_codec_id;
 843         int video_codec_id;
 844
 845         // Check for user selected format first
 846         if ( format != NULL )
 847                 fmt = guess_format( format, NULL, NULL );
 848
 849         // Otherwise check on the filename
 850         if ( fmt == NULL && filename != NULL )
 851                 fmt = guess_format( NULL, filename, NULL );
 852
 853         // Otherwise default to mpeg
 854         if ( fmt == NULL )
 855                 fmt = guess_format( "mpeg", NULL, NULL );
 856
 857         // We need a filename - default to stdout?
 858         if ( filename == NULL || !strcmp( filename, "" ) )
 859                 filename = "pipe:";
 860
 861         // Get the codec ids selected
 862         audio_codec_id = fmt->audio_codec;
 863         video_codec_id = fmt->video_codec;
 864
 865         // Check for audio codec overides
 866         if ( acodec != NULL )
 867         {
 868                 AVCodec *p = avcodec_find_encoder_by_name( acodec );
 869                 if ( p != NULL )
 870                         audio_codec_id = p->id;
 871                 else
 872                         fprintf( stderr, "%s: audio codec %s unrecognised - ignoring\n", __FILE__, acodec );
 873         }
 874
 875         // Check for video codec overides
 876         if ( vcodec != NULL )
 877         {
 878                 AVCodec *p = avcodec_find_encoder_by_name( vcodec );
 879                 if ( p != NULL )
 880                         video_codec_id = p->id;
 881                 else
 882                         fprintf( stderr, "%s: video codec %s unrecognised - ignoring\n", __FILE__, vcodec );
 883         }
 884
 885         // Write metadata
 886         char *tmp = NULL;
 887         int metavalue;
 888
 889         tmp = mlt_properties_get( properties, "meta.attr.title.markup");
 890         if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
 891
 892         tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
 893         if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
 894
 895         tmp = mlt_properties_get( properties, "meta.attr.author.markup");
 896         if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
 897
 898         tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
 899         if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
 900
 901         tmp = mlt_properties_get( properties, "meta.attr.album.markup");
 902         if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
 903
 904         metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
 905         if (metavalue != 0) oc->year = metavalue;
 906
 907         metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
 908         if (metavalue != 0) oc->track = metavalue;
 909
 910         oc->oformat = fmt;
 911         snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
 912
 913         // Add audio and video streams
 914         if ( fmt->video_codec != CODEC_ID_NONE )
 915                 video_st = add_video_stream( this, oc, video_codec_id );
 916         if ( fmt->audio_codec != CODEC_ID_NONE )
 917                 audio_st = add_audio_stream( this, oc, audio_codec_id );
 918
 919         // Set the parameters (even though we have none...)
 920         if ( av_set_parameters(oc, NULL) >= 0 )
 921         {
 922                 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
 923                 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
 924
 925                 // Process properties as AVOptions
 926                 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
 927
 928                 if ( video_st && !open_video( oc, video_st ) )
 929                         video_st = NULL;
 930                 if ( audio_st )
 931                         audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
 932
 933                 // Open the output file, if needed
 934                 if ( !( fmt->flags & AVFMT_NOFILE ) )
 935                 {
 936                         if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
 937                         {
 938                                 fprintf( stderr, "%s: Could not open '%s'\n", __FILE__, filename );
 939                                 mlt_properties_set_int( properties, "running", 0 );
 940                         }
 941                 }
 942
 943                 // Write the stream header, if any
 944                 if ( mlt_properties_get_int( properties, "running" ) )
 945                         av_write_header( oc );
 946         }
 947         else
 948         {
 949                 fprintf( stderr, "%s: Invalid output format parameters\n", __FILE__ );
 950                 mlt_properties_set_int( properties, "running", 0 );
 951         }
 952
 953         // Allocate picture
 954         if ( video_st )
 955                 output = alloc_picture( video_st->codec->pix_fmt, width, height );
 956
 957         // Last check - need at least one stream
 958         if ( audio_st == NULL && video_st == NULL )
 959                 mlt_properties_set_int( properties, "running", 0 );
 960
 961         // Get the starting time (can ignore the times above)
 962         gettimeofday( &ante, NULL );
 963
 964         // Loop while running
 965         while( mlt_properties_get_int( properties, "running" ) && !terminated )
 966         {
 967                 // Get the frame
 968                 frame = mlt_consumer_rt_frame( this );
 969
 970                 // Check that we have a frame to work with
 971                 if ( frame != NULL )
 972                 {
 973                         // Increment frames despatched
 974                         frames ++;
 975
 976                         // Default audio args
 977                         frame_properties = MLT_FRAME_PROPERTIES( frame );
 978
 979                         // Check for the terminated condition
 980                         terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
 981
 982                         // Get audio and append to the fifo
 983                         if ( !terminated && audio_st )
 984                         {
 985                                 samples = mlt_sample_calculator( fps, frequency, count ++ );
 986                                 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
 987
 988                                 // Create the fifo if we don't have one
 989                                 if ( fifo == NULL )
 990                                 {
 991                                         fifo = sample_fifo_init( frequency, channels );
 992                                         mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
 993                                 }
 994
 995                                 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
 996                                         memset( pcm, 0, samples * channels * 2 );
 997
 998                                 // Append the samples
 999                                 sample_fifo_append( fifo, pcm, samples * channels );
1000                                 total_time += ( samples * 1000000 ) / frequency;
1001                         }
1002
1003                         // Encode the image
1004                         if ( !terminated && video_st )
1005                                 mlt_deque_push_back( queue, frame );
1006                         else
1007                                 mlt_frame_close( frame );
1008                 }
1009
1010                 // While we have stuff to process, process...
1011                 while ( 1 )
1012                 {
1013                         if (audio_st)
1014                                 audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
1015                         else
1016                                 audio_pts = 0.0;
1017
1018                         if (video_st)
1019                                 video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
1020                         else
1021                                 video_pts = 0.0;
1022
1023                         // Write interleaved audio and video frames
1024                         if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
1025                         {
1026                                 if ( channels * audio_input_frame_size < sample_fifo_used( fifo ) )
1027                                 {
1028                                         AVCodecContext *c;
1029                                         AVPacket pkt;
1030                                         av_init_packet( &pkt );
1031
1032                                         c = audio_st->codec;
1033
1034                                         sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1035
1036                                         pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1037                                         // Write the compressed frame in the media file
1038                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1039                                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1040                                         pkt.flags |= PKT_FLAG_KEY;
1041                                         pkt.stream_index= audio_st->index;
1042                                         pkt.data= audio_outbuf;
1043
1044                                         if ( pkt.size )
1045                                                 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
1046                                                         fprintf( stderr, "%s: Error while writing audio frame\n", __FILE__ );
1047
1048                                         audio_pts += c->frame_size;
1049                                 }
1050                                 else
1051                                 {
1052                                         break;
1053                                 }
1054                         }
1055                         else if ( video_st )
1056                         {
1057                                 if ( mlt_deque_count( queue ) )
1058                                 {
1059                                         int out_size, ret;
1060                                         AVCodecContext *c;
1061
1062                                         frame = mlt_deque_pop_front( queue );
1063                                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1064
1065                                         c = video_st->codec;
1066
1067                                         if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1068                                         {
1069                                                 int i = 0;
1070                                                 int j = 0;
1071                                                 uint8_t *p;
1072                                                 uint8_t *q;
1073
1074                                                 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1075
1076                                                 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1077
1078                                                 q = image;
1079
1080                                                 // Convert the mlt frame to an AVPicture
1081                                                 for ( i = 0; i < height; i ++ )
1082                                                 {
1083                                                         p = input->data[ 0 ] + i * input->linesize[ 0 ];
1084                                                         j = width;
1085                                                         while( j -- )
1086                                                         {
1087                                                                 *p ++ = *q ++;
1088                                                                 *p ++ = *q ++;
1089                                                         }
1090                                                 }
1091
1092                                                 // Do the colour space conversion
1093 #ifdef SWSCALE
1094                                                 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUV422,
1095                                                         width, height, video_st->codec->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL);
1096                                                 sws_scale( context, input->data, input->linesize, 0, height,
1097                                                         output->data, output->linesize);
1098                                                 sws_freeContext( context );
1099 #else
1100                                                 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUV422, width, height );
1101 #endif
1102
1103                                                 // Apply the alpha if applicable
1104                                                 if ( video_st->codec->pix_fmt == PIX_FMT_RGBA32 )
1105                                                 {
1106                                                         uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1107                                                         register int n;
1108
1109                                                         for ( i = 0; i < height; i ++ )
1110                                                         {
1111                                                                 n = ( width + 7 ) / 8;
1112                                                                 p = output->data[ 0 ] + i * output->linesize[ 0 ];
1113
1114                                                                 #ifndef __DARWIN__
1115                                                                 p += 3;
1116                                                                 #endif
1117
1118                                                                 switch( width % 8 )
1119                                                                 {
1120                                                                         case 0: do { *p = *alpha++; p += 4;
1121                                                                         case 7:          *p = *alpha++; p += 4;
1122                                                                         case 6:          *p = *alpha++; p += 4;
1123                                                                         case 5:          *p = *alpha++; p += 4;
1124                                                                         case 4:          *p = *alpha++; p += 4;
1125                                                                         case 3:          *p = *alpha++; p += 4;
1126                                                                         case 2:          *p = *alpha++; p += 4;
1127                                                                         case 1:          *p = *alpha++; p += 4;
1128                                                                                         }
1129                                                                                         while( --n );
1130                                                                 }
1131                                                         }
1132                                                 }
1133                                         }
1134
1135                                         if (oc->oformat->flags & AVFMT_RAWPICTURE)
1136                                         {
1137                                                 // raw video case. The API will change slightly in the near future for that
1138                                                 AVPacket pkt;
1139                                                 av_init_packet(&pkt);
1140
1141                                                 pkt.flags |= PKT_FLAG_KEY;
1142                                                 pkt.stream_index= video_st->index;
1143                                                 pkt.data= (uint8_t *)output;
1144                                                 pkt.size= sizeof(AVPicture);
1145
1146                                                 ret = av_write_frame(oc, &pkt);
1147                                                 video_pts += c->frame_size;
1148                                         }
1149                                         else
1150                                         {
1151                                                 // Set the quality
1152                                                 output->quality = video_st->quality;
1153
1154                                                 // Set frame interlace hints
1155                                                 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1156                                                 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1157
1158                                                 // Encode the image
1159                                                 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1160
1161                                                 // If zero size, it means the image was buffered
1162                                                 if (out_size > 0)
1163                                                 {
1164                                                         AVPacket pkt;
1165                                                         av_init_packet( &pkt );
1166
1167                                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1168                                                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1169                                                         if( c->coded_frame && c->coded_frame->key_frame )
1170                                                                 pkt.flags |= PKT_FLAG_KEY;
1171                                                         pkt.stream_index= video_st->index;
1172                                                         pkt.data= video_outbuf;
1173                                                         pkt.size= out_size;
1174
1175                                                         // write the compressed frame in the media file
1176                                                         ret = av_interleaved_write_frame(oc, &pkt);
1177                                                         video_pts += c->frame_size;
1178
1179                                                         // Dual pass logging
1180                                                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out)
1181                                                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1182                                                 }
1183                                                 else
1184                                                 {
1185                                                         fprintf( stderr, "%s: error with video encode\n", __FILE__ );
1186                                                 }
1187                                         }
1188                                         frame_count++;
1189                                         mlt_frame_close( frame );
1190                                 }
1191                                 else
1192                                 {
1193                                         break;
1194                                 }
1195                         }
1196                 }
1197
1198                 if ( real_time_output == 1 && frames % 12 == 0 )
1199                 {
1200                         long passed = time_difference( &ante );
1201                         if ( fifo != NULL )
1202                         {
1203                                 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1204                                 passed -= pending;
1205                         }
1206                         if ( passed < total_time )
1207                         {
1208                                 long total = ( total_time - passed );
1209                                 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1210                                 nanosleep( &t, NULL );
1211                         }
1212                 }
1213         }
1214
1215 #ifdef FLUSH
1216         if ( ! real_time_output )
1217         {
1218                 // Flush audio fifo
1219                 if ( audio_st && audio_st->codec->frame_size > 1 ) for (;;)
1220                 {
1221                         AVCodecContext *c = audio_st->codec;
1222                         AVPacket pkt;
1223                         av_init_packet( &pkt );
1224                         pkt.size = 0;
1225
1226                         if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1227                                 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1228                         {
1229                                 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1230                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1231                         }
1232                         if ( pkt.size <= 0 )
1233                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1234                         if ( pkt.size <= 0 )
1235                                 break;
1236
1237                         // Write the compressed frame in the media file
1238                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1239                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1240                         pkt.flags |= PKT_FLAG_KEY;
1241                         pkt.stream_index = audio_st->index;
1242                         pkt.data = audio_outbuf;
1243                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1244                         {
1245                                 fprintf( stderr, "%s: Error while writing flushed audio frame\n", __FILE__ );
1246                                 break;
1247                         }
1248                 }
1249
1250                 // Flush video
1251                 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1252                 {
1253                         AVCodecContext *c = video_st->codec;
1254                         AVPacket pkt;
1255                         av_init_packet( &pkt );
1256
1257                         // Encode the image
1258                         pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1259                         if ( pkt.size <= 0 )
1260                                 break;
1261
1262                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1263                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1264                         if( c->coded_frame && c->coded_frame->key_frame )
1265                                 pkt.flags |= PKT_FLAG_KEY;
1266                         pkt.stream_index = video_st->index;
1267                         pkt.data = video_outbuf;
1268
1269                         // write the compressed frame in the media file
1270                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1271                         {
1272                                 fprintf( stderr, "%s: Error while writing flushed video frame\n". __FILE__ );
1273                                 break;
1274                         }
1275                 }
1276         }
1277 #endif
1278
1279         // close each codec
1280         if (video_st)
1281                 close_video(oc, video_st);
1282         if (audio_st)
1283                 close_audio(oc, audio_st);
1284
1285         // Write the trailer, if any
1286         av_write_trailer(oc);
1287
1288         // Free the streams
1289         for(i = 0; i < oc->nb_streams; i++)
1290                 av_freep(&oc->streams[i]);
1291
1292         // Close the output file
1293         if (!(fmt->flags & AVFMT_NOFILE))
1294 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1295                 url_fclose(oc->pb);
1296 #else
1297                 url_fclose(&oc->pb);
1298 #endif
1299
1300         // Clean up input and output frames
1301         if ( output )
1302                 av_free( output->data[0] );
1303         av_free( output );
1304         av_free( input->data[0] );
1305         av_free( input );
1306         av_free( video_outbuf );
1307         av_free( buffer );
1308
1309         // Free the stream
1310         av_free(oc);
1311
1312         // Just in case we terminated on pause
1313         mlt_properties_set_int( properties, "running", 0 );
1314
1315         mlt_consumer_stopped( this );
1316
1317         if ( mlt_properties_get_int( properties, "pass" ) == 2 )
1318         {
1319                 // Remove the dual pass log file
1320                 if ( mlt_properties_get( properties, "_logfilename" ) )
1321                         remove( mlt_properties_get( properties, "_logfilename" ) );
1322
1323                 // Remove the x264 dual pass logs
1324                 char *cwd = getcwd( NULL, 0 );
1325                 char *file = "x264_2pass.log";
1326                 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1327                 sprintf( full, "%s/%s", cwd, file );
1328                 remove( full );
1329                 free( full );
1330                 file = "x264_2pass.log.temp";
1331                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1332                 sprintf( full, "%s/%s", cwd, file );
1333                 remove( full );
1334                 free( full );
1335                 free( cwd );
1336                 remove( "x264_2pass.log.temp" );
1337         }
1338
1339         return NULL;
1340 }
1341
1342 /** Close the consumer.
1343 */
1344
1345 static void consumer_close( mlt_consumer this )
1346 {
1347         // Stop the consumer
1348         mlt_consumer_stop( this );
1349
1350         // Close the parent
1351         mlt_consumer_close( this );
1352
1353         // Free the memory
1354         free( this );
1355 }