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 #include <framework/mlt_profile.h>
  26 #include <framework/mlt_log.h>
  27 #include <framework/mlt_events.h>
  28
  29 // System header files
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <limits.h>
  34 #include <pthread.h>
  35 #include <sys/time.h>
  36 #include <unistd.h>
  37
  38 // avformat header files
  39 #include <libavformat/avformat.h>
  40 #ifdef SWSCALE
  41 #include <libswscale/swscale.h>
  42 #endif
  43 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
  44 #include <libavutil/pixdesc.h>
  45 #endif
  46
  47 #if LIBAVUTIL_VERSION_INT < (50<<16)
  48 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
  49 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
  50 #endif
  51
  52 #if LIBAVCODEC_VERSION_MAJOR > 52
  53 #include <libavutil/opt.h>
  54 #define CODEC_TYPE_VIDEO      AVMEDIA_TYPE_VIDEO
  55 #define CODEC_TYPE_AUDIO      AVMEDIA_TYPE_AUDIO
  56 #define PKT_FLAG_KEY AV_PKT_FLAG_KEY
  57 #else
  58 #include <libavcodec/opt.h>
  59 #endif
  60
  61 #define MAX_AUDIO_STREAMS (8)
  62 #define AUDIO_ENCODE_BUFFER_SIZE (48000 * 2 * MAX_AUDIO_STREAMS)
  63 #define AUDIO_BUFFER_SIZE (1024 * 42)
  64 #define VIDEO_BUFFER_SIZE (2048 * 1024)
  65
  66 void avformat_lock( );
  67 void avformat_unlock( );
  68
  69 //
  70 // This structure should be extended and made globally available in mlt
  71 //
  72
  73 typedef struct
  74 {
  75         int16_t *buffer;
  76         int size;
  77         int used;
  78         double time;
  79         int frequency;
  80         int channels;
  81 }
  82 *sample_fifo, sample_fifo_s;
  83
  84 sample_fifo sample_fifo_init( int frequency, int channels )
  85 {
  86         sample_fifo fifo = calloc( 1, sizeof( sample_fifo_s ) );
  87         fifo->frequency = frequency;
  88         fifo->channels = channels;
  89         return fifo;
  90 }
  91
  92 // sample_fifo_clear and check are temporarily aborted (not working as intended)
  93
  94 void sample_fifo_clear( sample_fifo fifo, double time )
  95 {
  96         int words = ( float )( time - fifo->time ) * fifo->frequency * fifo->channels;
  97         if ( ( int )( ( float )time * 100 ) < ( int )( ( float )fifo->time * 100 ) && fifo->used > words && words > 0 )
  98         {
  99                 memmove( fifo->buffer, &fifo->buffer[ words ], ( fifo->used - words ) * sizeof( int16_t ) );
 100                 fifo->used -= words;
 101                 fifo->time = time;
 102         }
 103         else if ( ( int )( ( float )time * 100 ) != ( int )( ( float )fifo->time * 100 ) )
 104         {
 105                 fifo->used = 0;
 106                 fifo->time = time;
 107         }
 108 }
 109
 110 void sample_fifo_check( sample_fifo fifo, double time )
 111 {
 112         if ( fifo->used == 0 )
 113         {
 114                 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )fifo->time * 100 ) )
 115                         fifo->time = time;
 116         }
 117 }
 118
 119 void sample_fifo_append( sample_fifo fifo, int16_t *samples, int count )
 120 {
 121         if ( ( fifo->size - fifo->used ) < count )
 122         {
 123                 fifo->size += count * 5;
 124                 fifo->buffer = realloc( fifo->buffer, fifo->size * sizeof( int16_t ) );
 125         }
 126
 127         memcpy( &fifo->buffer[ fifo->used ], samples, count * sizeof( int16_t ) );
 128         fifo->used += count;
 129 }
 130
 131 int sample_fifo_used( sample_fifo fifo )
 132 {
 133         return fifo->used;
 134 }
 135
 136 int sample_fifo_fetch( sample_fifo fifo, int16_t *samples, int count )
 137 {
 138         if ( count > fifo->used )
 139                 count = fifo->used;
 140
 141         memcpy( samples, fifo->buffer, count * sizeof( int16_t ) );
 142         fifo->used -= count;
 143         memmove( fifo->buffer, &fifo->buffer[ count ], fifo->used * sizeof( int16_t ) );
 144
 145         fifo->time += ( double )count / fifo->channels / fifo->frequency;
 146
 147         return count;
 148 }
 149
 150 void sample_fifo_close( sample_fifo fifo )
 151 {
 152         free( fifo->buffer );
 153         free( fifo );
 154 }
 155
 156 // Forward references.
 157 static int consumer_start( mlt_consumer consumer );
 158 static int consumer_stop( mlt_consumer consumer );
 159 static int consumer_is_stopped( mlt_consumer consumer );
 160 static void *consumer_thread( void *arg );
 161 static void consumer_close( mlt_consumer consumer );
 162
 163 /** Initialise the consumer.
 164 */
 165
 166 mlt_consumer consumer_avformat_init( mlt_profile profile, char *arg )
 167 {
 168         // Allocate the consumer
 169         mlt_consumer consumer = mlt_consumer_new( profile );
 170
 171         // If memory allocated and initialises without error
 172         if ( consumer != NULL )
 173         {
 174                 // Get properties from the consumer
 175                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 176
 177                 // Assign close callback
 178                 consumer->close = consumer_close;
 179
 180                 // Interpret the argument
 181                 if ( arg != NULL )
 182                         mlt_properties_set( properties, "target", arg );
 183
 184                 // sample and frame queue
 185                 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
 186
 187                 // Audio options not fully handled by AVOptions
 188 #define QSCALE_NONE (-99999)
 189                 mlt_properties_set_int( properties, "aq", QSCALE_NONE );
 190
 191                 // Video options not fully handled by AVOptions
 192                 mlt_properties_set_int( properties, "dc", 8 );
 193
 194                 // Muxer options not fully handled by AVOptions
 195                 mlt_properties_set_double( properties, "muxdelay", 0.7 );
 196                 mlt_properties_set_double( properties, "muxpreload", 0.5 );
 197
 198                 // Ensure termination at end of the stream
 199                 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
 200
 201                 // Default to separate processing threads for producer and consumer with no frame dropping!
 202                 mlt_properties_set_int( properties, "real_time", -1 );
 203                 mlt_properties_set_int( properties, "prefill", 1 );
 204
 205                 // Set up start/stop/terminated callbacks
 206                 consumer->start = consumer_start;
 207                 consumer->stop = consumer_stop;
 208                 consumer->is_stopped = consumer_is_stopped;
 209
 210                 mlt_events_register( properties, "consumer-fatal-error", NULL );
 211         }
 212
 213         // Return consumer
 214         return consumer;
 215 }
 216
 217 /** Start the consumer.
 218 */
 219
 220 static int consumer_start( mlt_consumer consumer )
 221 {
 222         // Get the properties
 223         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 224         int error = 0;
 225
 226         // Report information about available muxers and codecs as YAML Tiny
 227         char *s = mlt_properties_get( properties, "f" );
 228         if ( s && strcmp( s, "list" ) == 0 )
 229         {
 230                 mlt_properties doc = mlt_properties_new();
 231                 mlt_properties formats = mlt_properties_new();
 232                 char key[20];
 233                 AVOutputFormat *format = NULL;
 234
 235                 mlt_properties_set_data( properties, "f", formats, 0, (mlt_destructor) mlt_properties_close, NULL );
 236                 mlt_properties_set_data( doc, "formats", formats, 0, NULL, NULL );
 237                 while ( ( format = av_oformat_next( format ) ) )
 238                 {
 239                         snprintf( key, sizeof(key), "%d", mlt_properties_count( formats ) );
 240                         mlt_properties_set( formats, key, format->name );
 241                 }
 242                 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
 243                 mlt_properties_close( doc );
 244                 error = 1;
 245         }
 246         s = mlt_properties_get( properties, "acodec" );
 247         if ( s && strcmp( s, "list" ) == 0 )
 248         {
 249                 mlt_properties doc = mlt_properties_new();
 250                 mlt_properties codecs = mlt_properties_new();
 251                 char key[20];
 252                 AVCodec *codec = NULL;
 253
 254                 mlt_properties_set_data( properties, "acodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
 255                 mlt_properties_set_data( doc, "audio_codecs", codecs, 0, NULL, NULL );
 256                 while ( ( codec = av_codec_next( codec ) ) )
 257                         if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
 258                         {
 259                                 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
 260                                 mlt_properties_set( codecs, key, codec->name );
 261                         }
 262                 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
 263                 mlt_properties_close( doc );
 264                 error = 1;
 265         }
 266         s = mlt_properties_get( properties, "vcodec" );
 267         if ( s && strcmp( s, "list" ) == 0 )
 268         {
 269                 mlt_properties doc = mlt_properties_new();
 270                 mlt_properties codecs = mlt_properties_new();
 271                 char key[20];
 272                 AVCodec *codec = NULL;
 273
 274                 mlt_properties_set_data( properties, "vcodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
 275                 mlt_properties_set_data( doc, "video_codecs", codecs, 0, NULL, NULL );
 276                 while ( ( codec = av_codec_next( codec ) ) )
 277                         if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
 278                         {
 279                                 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
 280                                 mlt_properties_set( codecs, key, codec->name );
 281                         }
 282                 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
 283                 mlt_properties_close( doc );
 284                 error = 1;
 285         }
 286
 287         // Check that we're not already running
 288         if ( !error && !mlt_properties_get_int( properties, "running" ) )
 289         {
 290                 // Allocate a thread
 291                 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
 292
 293                 // Get the width and height
 294                 int width = mlt_properties_get_int( properties, "width" );
 295                 int height = mlt_properties_get_int( properties, "height" );
 296
 297                 // Obtain the size property
 298                 char *size = mlt_properties_get( properties, "s" );
 299
 300                 // Interpret it
 301                 if ( size != NULL )
 302                 {
 303                         int tw, th;
 304                         if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
 305                         {
 306                                 width = tw;
 307                                 height = th;
 308                         }
 309                         else
 310                         {
 311                                 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Invalid size property %s - ignoring.\n", size );
 312                         }
 313                 }
 314
 315                 // Now ensure we honour the multiple of two requested by libavformat
 316                 width = ( width / 2 ) * 2;
 317                 height = ( height / 2 ) * 2;
 318                 mlt_properties_set_int( properties, "width", width );
 319                 mlt_properties_set_int( properties, "height", height );
 320
 321                 // We need to set these on the profile as well because the s property is
 322                 // an alias to mlt properties that correspond to profile settings.
 323                 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
 324                 if ( profile )
 325                 {
 326                         profile->width = width;
 327                         profile->height = height;
 328                 }
 329
 330                 // Handle the ffmpeg command line "-r" property for frame rate
 331                 if ( mlt_properties_get( properties, "r" ) )
 332                 {
 333                         double frame_rate = mlt_properties_get_double( properties, "r" );
 334                         AVRational rational = av_d2q( frame_rate, 255 );
 335                         mlt_properties_set_int( properties, "frame_rate_num", rational.num );
 336                         mlt_properties_set_int( properties, "frame_rate_den", rational.den );
 337                         if ( profile )
 338                         {
 339                                 profile->frame_rate_num = rational.num;
 340                                 profile->frame_rate_den = rational.den;
 341                                 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
 342                         }
 343                 }
 344
 345                 // Apply AVOptions that are synonyms for standard mlt_consumer options
 346                 if ( mlt_properties_get( properties, "ac" ) )
 347                         mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
 348                 if ( mlt_properties_get( properties, "ar" ) )
 349                         mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
 350
 351                 // Assign the thread to properties
 352                 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
 353
 354                 // Set the running state
 355                 mlt_properties_set_int( properties, "running", 1 );
 356
 357                 // Create the thread
 358                 pthread_create( thread, NULL, consumer_thread, consumer );
 359         }
 360         return error;
 361 }
 362
 363 /** Stop the consumer.
 364 */
 365
 366 static int consumer_stop( mlt_consumer consumer )
 367 {
 368         // Get the properties
 369         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 370
 371         // Check that we're running
 372         if ( mlt_properties_get_int( properties, "running" ) )
 373         {
 374                 // Get the thread
 375                 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
 376
 377                 // Stop the thread
 378                 mlt_properties_set_int( properties, "running", 0 );
 379
 380                 // Wait for termination
 381                 pthread_join( *thread, NULL );
 382         }
 383
 384         return 0;
 385 }
 386
 387 /** Determine if the consumer is stopped.
 388 */
 389
 390 static int consumer_is_stopped( mlt_consumer consumer )
 391 {
 392         // Get the properties
 393         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 394         return !mlt_properties_get_int( properties, "running" );
 395 }
 396
 397 /** Process properties as AVOptions and apply to AV context obj
 398 */
 399
 400 static void apply_properties( void *obj, mlt_properties properties, int flags, int alloc )
 401 {
 402         int i;
 403         int count = mlt_properties_count( properties );
 404         for ( i = 0; i < count; i++ )
 405         {
 406                 const char *opt_name = mlt_properties_get_name( properties, i );
 407                 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
 408
 409                 if ( opt != NULL )
 410 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
 411                         av_set_string3( obj, opt_name, mlt_properties_get_value( properties, i), alloc, NULL );
 412 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
 413                         av_set_string2( obj, opt_name, mlt_properties_get_value( properties, i), alloc );
 414 #else
 415                         av_set_string( obj, opt_name, mlt_properties_get_value( properties, i) );
 416 #endif
 417         }
 418 }
 419
 420 /** Add an audio output stream
 421 */
 422
 423 static AVStream *add_audio_stream( mlt_consumer consumer, AVFormatContext *oc, int codec_id, int channels )
 424 {
 425         // Get the properties
 426         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 427
 428         // Create a new stream
 429         AVStream *st = av_new_stream( oc, oc->nb_streams );
 430
 431         // If created, then initialise from properties
 432         if ( st != NULL )
 433         {
 434                 AVCodecContext *c = st->codec;
 435
 436                 // Establish defaults from AVOptions
 437                 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
 438
 439                 c->codec_id = codec_id;
 440                 c->codec_type = CODEC_TYPE_AUDIO;
 441                 c->sample_fmt = SAMPLE_FMT_S16;
 442
 443 #if 0 // disabled until some audio codecs are multi-threaded
 444                 // Setup multi-threading
 445                 int thread_count = mlt_properties_get_int( properties, "threads" );
 446                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 447                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 448                 if ( thread_count > 1 )
 449                         c->thread_count = thread_count;
 450 #endif
 451
 452                 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 453                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 454
 455                 // Allow the user to override the audio fourcc
 456                 if ( mlt_properties_get( properties, "atag" ) )
 457                 {
 458                         char *tail = NULL;
 459                         char *arg = mlt_properties_get( properties, "atag" );
 460                         int tag = strtol( arg, &tail, 0);
 461                         if( !tail || *tail )
 462                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 463                         c->codec_tag = tag;
 464                 }
 465
 466                 // Process properties as AVOptions
 467                 char *apre = mlt_properties_get( properties, "apre" );
 468                 if ( apre )
 469                 {
 470                         mlt_properties p = mlt_properties_load( apre );
 471                         apply_properties( c, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, 1 );
 472                         mlt_properties_close( p );
 473                 }
 474                 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, 0 );
 475
 476                 int audio_qscale = mlt_properties_get_int( properties, "aq" );
 477         if ( audio_qscale > QSCALE_NONE )
 478                 {
 479                         c->flags |= CODEC_FLAG_QSCALE;
 480                         c->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
 481                 }
 482
 483                 // Set parameters controlled by MLT
 484                 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
 485                 c->time_base = ( AVRational ){ 1, c->sample_rate };
 486                 c->channels = channels;
 487
 488                 if ( mlt_properties_get( properties, "alang" ) != NULL )
 489 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
 490                         av_metadata_set2( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
 491 #else
 492
 493                         strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
 494 #endif
 495         }
 496         else
 497         {
 498                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for audio\n" );
 499         }
 500
 501         return st;
 502 }
 503
 504 static int open_audio( mlt_properties properties, AVFormatContext *oc, AVStream *st, int audio_outbuf_size, const char *codec_name )
 505 {
 506         // We will return the audio input size from here
 507         int audio_input_frame_size = 0;
 508
 509         // Get the context
 510         AVCodecContext *c = st->codec;
 511
 512         // Find the encoder
 513         AVCodec *codec;
 514         if ( codec_name )
 515                 codec = avcodec_find_encoder_by_name( codec_name );
 516         else
 517                 codec = avcodec_find_encoder( c->codec_id );
 518
 519 #if LIBAVCODEC_VERSION_MAJOR > 52
 520         // Process properties as AVOptions on the AVCodec
 521         if ( codec && codec->priv_class && c->priv_data )
 522         {
 523                 char *apre = mlt_properties_get( properties, "apre" );
 524                 if ( apre )
 525                 {
 526                         mlt_properties p = mlt_properties_load( apre );
 527                         apply_properties( c->priv_data, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, 1 );
 528                         mlt_properties_close( p );
 529                 }
 530                 apply_properties( c->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, 0 );
 531         }
 532 #endif
 533
 534         avformat_lock();
 535
 536         // Continue if codec found and we can open it
 537         if ( codec != NULL && avcodec_open( c, codec ) >= 0 )
 538         {
 539                 // ugly hack for PCM codecs (will be removed ASAP with new PCM
 540                 // support to compute the input frame size in samples
 541                 if ( c->frame_size <= 1 )
 542                 {
 543                         audio_input_frame_size = audio_outbuf_size / c->channels;
 544                         switch(st->codec->codec_id)
 545                         {
 546                                 case CODEC_ID_PCM_S16LE:
 547                                 case CODEC_ID_PCM_S16BE:
 548                                 case CODEC_ID_PCM_U16LE:
 549                                 case CODEC_ID_PCM_U16BE:
 550                                         audio_input_frame_size >>= 1;
 551                                         break;
 552                                 default:
 553                                         break;
 554                         }
 555                 }
 556                 else
 557                 {
 558                         audio_input_frame_size = c->frame_size;
 559                 }
 560
 561                 // Some formats want stream headers to be seperate (hmm)
 562                 if ( !strcmp( oc->oformat->name, "mp4" ) ||
 563                          !strcmp( oc->oformat->name, "mov" ) ||
 564                          !strcmp( oc->oformat->name, "3gp" ) )
 565                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 566         }
 567         else
 568         {
 569                 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
 570         }
 571
 572         avformat_unlock();
 573
 574         return audio_input_frame_size;
 575 }
 576
 577 static void close_audio( AVFormatContext *oc, AVStream *st )
 578 {
 579         if ( st && st->codec )
 580         {
 581                 avformat_lock();
 582                 avcodec_close( st->codec );
 583                 avformat_unlock();
 584         }
 585 }
 586
 587 /** Add a video output stream
 588 */
 589
 590 static AVStream *add_video_stream( mlt_consumer consumer, AVFormatContext *oc, int codec_id )
 591 {
 592         // Get the properties
 593         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 594
 595         // Create a new stream
 596         AVStream *st = av_new_stream( oc, oc->nb_streams );
 597
 598         if ( st != NULL )
 599         {
 600                 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
 601                 AVCodecContext *c = st->codec;
 602
 603                 // Establish defaults from AVOptions
 604                 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
 605
 606                 c->codec_id = codec_id;
 607                 c->codec_type = CODEC_TYPE_VIDEO;
 608
 609                 // Setup multi-threading
 610                 int thread_count = mlt_properties_get_int( properties, "threads" );
 611                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 612                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 613                 if ( thread_count > 1 )
 614                         c->thread_count = thread_count;
 615
 616                 // Process properties as AVOptions
 617                 char *vpre = mlt_properties_get( properties, "vpre" );
 618                 if ( vpre )
 619                 {
 620                         mlt_properties p = mlt_properties_load( vpre );
 621 #ifdef AVDATADIR
 622                         if ( mlt_properties_count( p ) < 1 )
 623                         {
 624                                 AVCodec *codec = avcodec_find_encoder( c->codec_id );
 625                                 if ( codec )
 626                                 {
 627                                         char *path = malloc( strlen(AVDATADIR) + strlen(codec->name) + strlen(vpre) + strlen(".ffpreset") + 2 );
 628                                         strcpy( path, AVDATADIR );
 629                                         strcat( path, codec->name );
 630                                         strcat( path, "-" );
 631                                         strcat( path, vpre );
 632                                         strcat( path, ".ffpreset" );
 633
 634                                         mlt_properties_close( p );
 635                                         p = mlt_properties_load( path );
 636                                         mlt_properties_debug( p, path, stderr );
 637                                         free( path );
 638                                 }
 639                         }
 640                         else
 641                         {
 642                                 mlt_properties_debug( p, vpre, stderr );
 643                         }
 644 #endif
 645                         apply_properties( c, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, 1 );
 646                         mlt_properties_close( p );
 647                 }
 648                 int colorspace = mlt_properties_get_int( properties, "colorspace" );
 649                 mlt_properties_set( properties, "colorspace", NULL );
 650                 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, 0 );
 651                 mlt_properties_set_int( properties, "colorspace", colorspace );
 652
 653                 // Set options controlled by MLT
 654                 c->width = mlt_properties_get_int( properties, "width" );
 655                 c->height = mlt_properties_get_int( properties, "height" );
 656                 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
 657                 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
 658                 if ( st->time_base.den == 0 )
 659                         st->time_base = c->time_base;
 660 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
 661                 c->pix_fmt = pix_fmt ? av_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 662 #else
 663                 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 664 #endif
 665
 666 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
 667                 switch ( colorspace )
 668                 {
 669                 case 170:
 670                         c->colorspace = AVCOL_SPC_SMPTE170M;
 671                         break;
 672                 case 240:
 673                         c->colorspace = AVCOL_SPC_SMPTE240M;
 674                         break;
 675                 case 470:
 676                         c->colorspace = AVCOL_SPC_BT470BG;
 677                         break;
 678                 case 601:
 679                         c->colorspace = ( 576 % c->height ) ? AVCOL_SPC_SMPTE170M : AVCOL_SPC_BT470BG;
 680                         break;
 681                 case 709:
 682                         c->colorspace = AVCOL_SPC_BT709;
 683                         break;
 684                 }
 685 #endif
 686
 687                 if ( mlt_properties_get( properties, "aspect" ) )
 688                 {
 689                         // "-aspect" on ffmpeg command line is display aspect ratio
 690                         double ar = mlt_properties_get_double( properties, "aspect" );
 691                         AVRational rational = av_d2q( ar, 255 );
 692
 693                         // Update the profile and properties as well since this is an alias
 694                         // for mlt properties that correspond to profile settings
 695                         mlt_properties_set_int( properties, "display_aspect_num", rational.num );
 696                         mlt_properties_set_int( properties, "display_aspect_den", rational.den );
 697                         mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
 698                         if ( profile )
 699                         {
 700                                 profile->display_aspect_num = rational.num;
 701                                 profile->display_aspect_den = rational.den;
 702                                 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
 703                         }
 704
 705                         // Now compute the sample aspect ratio
 706                         rational = av_d2q( ar * c->height / c->width, 255 );
 707                         c->sample_aspect_ratio = rational;
 708                         // Update the profile and properties as well since this is an alias
 709                         // for mlt properties that correspond to profile settings
 710                         mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
 711                         mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
 712                         if ( profile )
 713                         {
 714                                 profile->sample_aspect_num = rational.num;
 715                                 profile->sample_aspect_den = rational.den;
 716                                 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
 717                         }
 718                 }
 719                 else
 720                 {
 721                         c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
 722                         c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
 723                 }
 724 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 725                 st->sample_aspect_ratio = c->sample_aspect_ratio;
 726 #endif
 727
 728                 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
 729                 {
 730                         c->flags |= CODEC_FLAG_QSCALE;
 731                         st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
 732                 }
 733
 734                 // Allow the user to override the video fourcc
 735                 if ( mlt_properties_get( properties, "vtag" ) )
 736                 {
 737                         char *tail = NULL;
 738                         const char *arg = mlt_properties_get( properties, "vtag" );
 739                         int tag = strtol( arg, &tail, 0);
 740                         if( !tail || *tail )
 741                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 742                         c->codec_tag = tag;
 743                 }
 744
 745                 // Some formats want stream headers to be seperate
 746                 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
 747                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 748
 749                 // Translate these standard mlt consumer properties to ffmpeg
 750                 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
 751                      mlt_properties_get_int( properties, "deinterlace" ) == 0 )
 752                 {
 753                         if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
 754                                 c->flags |= CODEC_FLAG_INTERLACED_DCT;
 755                         if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
 756                                 c->flags |= CODEC_FLAG_INTERLACED_ME;
 757                 }
 758
 759                 // parse the ratecontrol override string
 760                 int i;
 761                 char *rc_override = mlt_properties_get( properties, "rc_override" );
 762                 for ( i = 0; rc_override; i++ )
 763                 {
 764                         int start, end, q;
 765                         int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
 766                         if ( e != 3 )
 767                                 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Error parsing rc_override\n" );
 768                         c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
 769                         c->rc_override[i].start_frame = start;
 770                         c->rc_override[i].end_frame = end;
 771                         if ( q > 0 )
 772                         {
 773                                 c->rc_override[i].qscale = q;
 774                                 c->rc_override[i].quality_factor = 1.0;
 775                         }
 776                         else
 777                         {
 778                                 c->rc_override[i].qscale = 0;
 779                                 c->rc_override[i].quality_factor = -q / 100.0;
 780                         }
 781                         rc_override = strchr( rc_override, '/' );
 782                         if ( rc_override )
 783                                 rc_override++;
 784                 }
 785                 c->rc_override_count = i;
 786                 if ( !c->rc_initial_buffer_occupancy )
 787                         c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
 788                 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
 789
 790                 // Setup dual-pass
 791                 i = mlt_properties_get_int( properties, "pass" );
 792                 if ( i == 1 )
 793                         c->flags |= CODEC_FLAG_PASS1;
 794                 else if ( i == 2 )
 795                         c->flags |= CODEC_FLAG_PASS2;
 796                 if ( codec_id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
 797                 {
 798                         char logfilename[1024];
 799                         FILE *f;
 800                         int size;
 801                         char *logbuffer;
 802
 803                         snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
 804                                 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
 805                         if ( c->flags & CODEC_FLAG_PASS1 )
 806                         {
 807                                 f = fopen( logfilename, "w" );
 808                                 if ( !f )
 809                                         perror( logfilename );
 810                                 else
 811                                         mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
 812                         }
 813                         else
 814                         {
 815                                 /* read the log file */
 816                                 f = fopen( logfilename, "r" );
 817                                 if ( !f )
 818                                 {
 819                                         perror(logfilename);
 820                                 }
 821                                 else
 822                                 {
 823                                         mlt_properties_set( properties, "_logfilename", logfilename );
 824                                         fseek( f, 0, SEEK_END );
 825                                         size = ftell( f );
 826                                         fseek( f, 0, SEEK_SET );
 827                                         logbuffer = av_malloc( size + 1 );
 828                                         if ( !logbuffer )
 829                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate log buffer\n" );
 830                                         else
 831                                         {
 832                                                 size = fread( logbuffer, 1, size, f );
 833                                                 fclose( f );
 834                                                 logbuffer[size] = '\0';
 835                                                 c->stats_in = logbuffer;
 836                                                 mlt_properties_set_data( properties, "_logbuffer", logbuffer, 0, ( mlt_destructor )av_free, NULL );
 837                                         }
 838                                 }
 839                         }
 840                 }
 841         }
 842         else
 843         {
 844                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for video\n" );
 845         }
 846
 847         return st;
 848 }
 849
 850 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
 851 {
 852         // Allocate a frame
 853         AVFrame *picture = avcodec_alloc_frame();
 854
 855         // Determine size of the
 856         int size = avpicture_get_size(pix_fmt, width, height);
 857
 858         // Allocate the picture buf
 859         uint8_t *picture_buf = av_malloc(size);
 860
 861         // If we have both, then fill the image
 862         if ( picture != NULL && picture_buf != NULL )
 863         {
 864                 // Fill the frame with the allocated buffer
 865                 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
 866         }
 867         else
 868         {
 869                 // Something failed - clean up what we can
 870                 av_free( picture );
 871                 av_free( picture_buf );
 872                 picture = NULL;
 873         }
 874
 875         return picture;
 876 }
 877
 878 static int open_video( mlt_properties properties, AVFormatContext *oc, AVStream *st, const char *codec_name )
 879 {
 880         // Get the codec
 881         AVCodecContext *video_enc = st->codec;
 882
 883         // find the video encoder
 884         AVCodec *codec;
 885         if ( codec_name )
 886                 codec = avcodec_find_encoder_by_name( codec_name );
 887         else
 888                 codec = avcodec_find_encoder( video_enc->codec_id );
 889
 890 #if LIBAVCODEC_VERSION_MAJOR > 52
 891         // Process properties as AVOptions on the AVCodec
 892         if ( codec && codec->priv_class && video_enc->priv_data )
 893         {
 894                 char *vpre = mlt_properties_get( properties, "vpre" );
 895                 if ( vpre )
 896                 {
 897                         mlt_properties p = mlt_properties_load( vpre );
 898                         apply_properties( video_enc->priv_data, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, 1 );
 899                         mlt_properties_close( p );
 900                 }
 901                 apply_properties( video_enc->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, 0 );
 902         }
 903 #endif
 904
 905         if( codec && codec->pix_fmts )
 906         {
 907                 const enum PixelFormat *p = codec->pix_fmts;
 908                 for( ; *p!=-1; p++ )
 909                 {
 910                         if( *p == video_enc->pix_fmt )
 911                                 break;
 912                 }
 913                 if( *p == -1 )
 914                         video_enc->pix_fmt = codec->pix_fmts[ 0 ];
 915         }
 916
 917         // Open the codec safely
 918         avformat_lock();
 919         int result = codec != NULL && avcodec_open( video_enc, codec ) >= 0;
 920         avformat_unlock();
 921
 922         return result;
 923 }
 924
 925 void close_video(AVFormatContext *oc, AVStream *st)
 926 {
 927         if ( st && st->codec )
 928         {
 929                 avformat_lock();
 930                 avcodec_close(st->codec);
 931                 avformat_unlock();
 932         }
 933 }
 934
 935 static inline long time_difference( struct timeval *time1 )
 936 {
 937         struct timeval time2;
 938         gettimeofday( &time2, NULL );
 939         return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
 940 }
 941
 942 /** The main thread - the argument is simply the consumer.
 943 */
 944
 945 static void *consumer_thread( void *arg )
 946 {
 947         // Map the argument to the object
 948         mlt_consumer consumer = arg;
 949
 950         // Get the properties
 951         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 952
 953         // Get the terminate on pause property
 954         int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
 955         int terminated = 0;
 956
 957         // Determine if feed is slow (for realtime stuff)
 958         int real_time_output = mlt_properties_get_int( properties, "real_time" );
 959
 960         // Time structures
 961         struct timeval ante;
 962
 963         // Get the frame rate
 964         double fps = mlt_properties_get_double( properties, "fps" );
 965
 966         // Get width and height
 967         int width = mlt_properties_get_int( properties, "width" );
 968         int height = mlt_properties_get_int( properties, "height" );
 969         int img_width = width;
 970         int img_height = height;
 971
 972         // Get default audio properties
 973         mlt_audio_format aud_fmt = mlt_audio_s16;
 974         int channels = mlt_properties_get_int( properties, "channels" );
 975         int total_channels = channels;
 976         int frequency = mlt_properties_get_int( properties, "frequency" );
 977         int16_t *pcm = NULL;
 978         int samples = 0;
 979
 980         // AVFormat audio buffer and frame size
 981         int audio_outbuf_size = AUDIO_BUFFER_SIZE;
 982         uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
 983         int audio_input_frame_size = 0;
 984
 985         // AVFormat video buffer and frame count
 986         int frame_count = 0;
 987         int video_outbuf_size = VIDEO_BUFFER_SIZE;
 988         uint8_t *video_outbuf = av_malloc( video_outbuf_size );
 989
 990         // Used for the frame properties
 991         mlt_frame frame = NULL;
 992         mlt_properties frame_properties = NULL;
 993
 994         // Get the queues
 995         mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
 996         sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
 997
 998         // Need two av pictures for converting
 999         AVFrame *output = NULL;
1000         AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
1001
1002         // For receiving images from an mlt_frame
1003         uint8_t *image;
1004         mlt_image_format img_fmt = mlt_image_yuv422;
1005
1006         // For receiving audio samples back from the fifo
1007         int16_t *audio_buf_1 = av_malloc( AUDIO_ENCODE_BUFFER_SIZE );
1008         int16_t *audio_buf_2 = NULL;
1009         int count = 0;
1010
1011         // Allocate the context
1012 #if (LIBAVFORMAT_VERSION_INT >= ((52<<16)+(26<<8)+0))
1013         AVFormatContext *oc = avformat_alloc_context( );
1014 #else
1015         AVFormatContext *oc = av_alloc_format_context( );
1016 #endif
1017
1018         // Streams
1019         AVStream *video_st = NULL;
1020         AVStream *audio_st[ MAX_AUDIO_STREAMS ];
1021
1022         // Time stamps
1023         double audio_pts = 0;
1024         double video_pts = 0;
1025
1026         // Frames dispatched
1027         long int frames = 0;
1028         long int total_time = 0;
1029
1030         // Determine the format
1031         AVOutputFormat *fmt = NULL;
1032         const char *filename = mlt_properties_get( properties, "target" );
1033         char *format = mlt_properties_get( properties, "f" );
1034         char *vcodec = mlt_properties_get( properties, "vcodec" );
1035         char *acodec = mlt_properties_get( properties, "acodec" );
1036
1037         // Used to store and override codec ids
1038         int audio_codec_id;
1039         int video_codec_id;
1040
1041         // Misc
1042         char key[27];
1043         mlt_properties frame_meta_properties = mlt_properties_new();
1044
1045         // Initialize audio_st
1046         int i = MAX_AUDIO_STREAMS;
1047         while ( i-- )
1048                 audio_st[i] = NULL;
1049
1050         // Check for user selected format first
1051         if ( format != NULL )
1052 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1053                 fmt = guess_format( format, NULL, NULL );
1054 #else
1055                 fmt = av_guess_format( format, NULL, NULL );
1056 #endif
1057
1058         // Otherwise check on the filename
1059         if ( fmt == NULL && filename != NULL )
1060 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1061                 fmt = guess_format( NULL, filename, NULL );
1062 #else
1063                 fmt = av_guess_format( NULL, filename, NULL );
1064 #endif
1065
1066         // Otherwise default to mpeg
1067         if ( fmt == NULL )
1068 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1069                 fmt = guess_format( "mpeg", NULL, NULL );
1070 #else
1071                 fmt = av_guess_format( "mpeg", NULL, NULL );
1072 #endif
1073
1074         // We need a filename - default to stdout?
1075         if ( filename == NULL || !strcmp( filename, "" ) )
1076                 filename = "pipe:";
1077
1078         // Get the codec ids selected
1079         audio_codec_id = fmt->audio_codec;
1080         video_codec_id = fmt->video_codec;
1081
1082         // Check for audio codec overides
1083         if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
1084                 audio_codec_id = CODEC_ID_NONE;
1085         else if ( acodec )
1086         {
1087                 AVCodec *p = avcodec_find_encoder_by_name( acodec );
1088                 if ( p != NULL )
1089                 {
1090                         audio_codec_id = p->id;
1091                         if ( audio_codec_id == CODEC_ID_AC3 && avcodec_find_encoder_by_name( "ac3_fixed" ) )
1092                         {
1093                                 mlt_properties_set( properties, "_acodec", "ac3_fixed" );
1094                                 acodec = mlt_properties_get( properties, "_acodec" );
1095                         }
1096                 }
1097                 else
1098                 {
1099                         audio_codec_id = CODEC_ID_NONE;
1100                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "audio codec %s unrecognised - ignoring\n", acodec );
1101                 }
1102         }
1103
1104         // Check for video codec overides
1105         if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
1106                 video_codec_id = CODEC_ID_NONE;
1107         else if ( vcodec )
1108         {
1109                 AVCodec *p = avcodec_find_encoder_by_name( vcodec );
1110                 if ( p != NULL )
1111                 {
1112                         video_codec_id = p->id;
1113                 }
1114                 else
1115                 {
1116                         video_codec_id = CODEC_ID_NONE;
1117                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "video codec %s unrecognised - ignoring\n", vcodec );
1118                 }
1119         }
1120
1121         // Write metadata
1122 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
1123         for ( i = 0; i < mlt_properties_count( properties ); i++ )
1124         {
1125                 char *name = mlt_properties_get_name( properties, i );
1126                 if ( name && !strncmp( name, "meta.attr.", 10 ) )
1127                 {
1128                         char *key = strdup( name + 10 );
1129                         char *markup = strrchr( key, '.' );
1130                         if ( markup && !strcmp( markup, ".markup") )
1131                         {
1132                                 markup[0] = '\0';
1133                                 if ( !strstr( key, ".stream." ) )
1134 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
1135                                         av_metadata_set2( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1136 #else
1137                                         av_metadata_set( &oc->metadata, key, mlt_properties_get_value( properties, i ) );
1138 #endif
1139                         }
1140                         free( key );
1141                 }
1142         }
1143 #else
1144         char *tmp = NULL;
1145         int metavalue;
1146
1147         tmp = mlt_properties_get( properties, "meta.attr.title.markup");
1148         if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
1149
1150         tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
1151         if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
1152
1153         tmp = mlt_properties_get( properties, "meta.attr.author.markup");
1154         if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
1155
1156         tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
1157         if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
1158
1159         tmp = mlt_properties_get( properties, "meta.attr.album.markup");
1160         if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
1161
1162         metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
1163         if (metavalue != 0) oc->year = metavalue;
1164
1165         metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
1166         if (metavalue != 0) oc->track = metavalue;
1167 #endif
1168
1169         oc->oformat = fmt;
1170         snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
1171
1172         // Add audio and video streams
1173         if ( video_codec_id != CODEC_ID_NONE )
1174                 video_st = add_video_stream( consumer, oc, video_codec_id );
1175         if ( audio_codec_id != CODEC_ID_NONE )
1176         {
1177                 int is_multi = 0;
1178
1179                 total_channels = 0;
1180                 // multitrack audio
1181                 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
1182                 {
1183                         sprintf( key, "channels.%d", i );
1184                         int j = mlt_properties_get_int( properties, key );
1185                         if ( j )
1186                         {
1187                                 is_multi = 1;
1188                                 total_channels += j;
1189                                 audio_st[i] = add_audio_stream( consumer, oc, audio_codec_id, j );
1190                         }
1191                 }
1192                 // single track
1193                 if ( !is_multi )
1194                 {
1195                         audio_st[0] = add_audio_stream( consumer, oc, audio_codec_id, channels );
1196                         total_channels = channels;
1197                 }
1198         }
1199
1200         // Set the parameters (even though we have none...)
1201         if ( av_set_parameters(oc, NULL) >= 0 )
1202         {
1203                 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
1204                 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
1205
1206                 // Process properties as AVOptions
1207                 char *fpre = mlt_properties_get( properties, "fpre" );
1208                 if ( fpre )
1209                 {
1210                         mlt_properties p = mlt_properties_load( fpre );
1211                         apply_properties( oc, p, AV_OPT_FLAG_ENCODING_PARAM, 1 );
1212 #if LIBAVFORMAT_VERSION_MAJOR > 52
1213                         if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1214                                 apply_properties( oc->priv_data, p, AV_OPT_FLAG_ENCODING_PARAM, 1 );
1215 #endif
1216                         mlt_properties_close( p );
1217                 }
1218                 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM, 0 );
1219 #if LIBAVFORMAT_VERSION_MAJOR > 52
1220                 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1221                         apply_properties( oc->priv_data, properties, AV_OPT_FLAG_ENCODING_PARAM, 1 );
1222 #endif
1223
1224                 if ( video_st && !open_video( properties, oc, video_st, vcodec? vcodec : NULL ) )
1225                         video_st = NULL;
1226                 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1227                 {
1228                         audio_input_frame_size = open_audio( properties, oc, audio_st[i], audio_outbuf_size,
1229                                 acodec? acodec : NULL );
1230                         if ( !audio_input_frame_size )
1231                                 audio_st[i] = NULL;
1232                 }
1233
1234                 // Open the output file, if needed
1235                 if ( !( fmt->flags & AVFMT_NOFILE ) )
1236                 {
1237 #if LIBAVFORMAT_VERSION_MAJOR > 52
1238                         if ( avio_open( &oc->pb, filename, AVIO_FLAG_WRITE ) < 0 )
1239 #else
1240                         if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
1241 #endif
1242                         {
1243                                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not open '%s'\n", filename );
1244                                 mlt_properties_set_int( properties, "running", 0 );
1245                         }
1246                 }
1247
1248                 // Write the stream header.
1249                 if ( mlt_properties_get_int( properties, "running" ) )
1250                         av_write_header( oc );
1251         }
1252         else
1253         {
1254                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Invalid output format parameters\n" );
1255                 mlt_properties_set_int( properties, "running", 0 );
1256         }
1257
1258         // Allocate picture
1259         if ( video_st )
1260                 output = alloc_picture( video_st->codec->pix_fmt, width, height );
1261
1262         // Last check - need at least one stream
1263         if ( !audio_st[0] && !video_st )
1264                 mlt_properties_set_int( properties, "running", 0 );
1265
1266         // Get the starting time (can ignore the times above)
1267         gettimeofday( &ante, NULL );
1268
1269         // Loop while running
1270         while( mlt_properties_get_int( properties, "running" ) &&
1271                ( !terminated || ( video_st && mlt_deque_count( queue ) ) ) )
1272         {
1273                 frame = mlt_consumer_rt_frame( consumer );
1274
1275                 // Check that we have a frame to work with
1276                 if ( frame != NULL )
1277                 {
1278                         // Increment frames dispatched
1279                         frames ++;
1280
1281                         // Default audio args
1282                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1283
1284                         // Check for the terminated condition
1285                         terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1286
1287                         // Get audio and append to the fifo
1288                         if ( !terminated && audio_st[0] )
1289                         {
1290                                 samples = mlt_sample_calculator( fps, frequency, count ++ );
1291                                 mlt_frame_get_audio( frame, (void**) &pcm, &aud_fmt, &frequency, &channels, &samples );
1292
1293                                 // Save the audio channel remap properties for later
1294                                 mlt_properties_pass( frame_meta_properties, frame_properties, "meta.map.audio." );
1295
1296                                 // Create the fifo if we don't have one
1297                                 if ( fifo == NULL )
1298                                 {
1299                                         fifo = sample_fifo_init( frequency, channels );
1300                                         mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1301                                 }
1302
1303                                 // Silence if not normal forward speed
1304                                 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1305                                         memset( pcm, 0, samples * channels * 2 );
1306
1307                                 // Append the samples
1308                                 sample_fifo_append( fifo, pcm, samples * channels );
1309                                 total_time += ( samples * 1000000 ) / frequency;
1310
1311                                 if ( !video_st )
1312                                         mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1313                         }
1314
1315                         // Encode the image
1316                         if ( !terminated && video_st )
1317                                 mlt_deque_push_back( queue, frame );
1318                         else
1319                                 mlt_frame_close( frame );
1320                 }
1321
1322                 // While we have stuff to process, process...
1323                 while ( 1 )
1324                 {
1325                         // Write interleaved audio and video frames
1326                         if ( !video_st || ( video_st && audio_st[0] && audio_pts < video_pts ) )
1327                         {
1328                                 // Write audio
1329                                 if ( ( video_st && terminated ) || ( channels * audio_input_frame_size ) < sample_fifo_used( fifo ) )
1330                                 {
1331                                         int j = 0; // channel offset into interleaved source buffer
1332                                         int n = FFMIN( FFMIN( channels * audio_input_frame_size, sample_fifo_used( fifo ) ), AUDIO_ENCODE_BUFFER_SIZE );
1333
1334                                         // Get the audio samples
1335                                         if ( n > 0 )
1336                                         {
1337                                                 sample_fifo_fetch( fifo, audio_buf_1, n );
1338                                         }
1339                                         else if ( audio_codec_id == CODEC_ID_VORBIS && terminated )
1340                                         {
1341                                                 // This prevents an infinite loop when some versions of vorbis do not
1342                                                 // increment pts when encoding silence.
1343                                                 audio_pts = video_pts;
1344                                                 break;
1345                                         }
1346                                         else
1347                                         {
1348                                                 memset( audio_buf_1, 0, AUDIO_ENCODE_BUFFER_SIZE );
1349                                         }
1350                                         samples = n / channels;
1351
1352                                         // For each output stream
1353                                         for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i] && j < total_channels; i++ )
1354                                         {
1355                                                 AVStream *stream = audio_st[i];
1356                                                 AVCodecContext *codec = stream->codec;
1357                                                 AVPacket pkt;
1358
1359                                                 av_init_packet( &pkt );
1360
1361                                                 // Optimized for single track and no channel remap
1362                                                 if ( !audio_st[1] && !mlt_properties_count( frame_meta_properties ) )
1363                                                 {
1364                                                         pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, audio_buf_1 );
1365                                                 }
1366                                                 else
1367                                                 {
1368                                                         // Extract the audio channels according to channel mapping
1369                                                         int dest_offset = 0; // channel offset into interleaved dest buffer
1370
1371                                                         // Get the number of channels for this stream
1372                                                         sprintf( key, "channels.%d", i );
1373                                                         int current_channels = mlt_properties_get_int( properties, key );
1374
1375                                                         // Clear the destination audio buffer.
1376                                                         if ( !audio_buf_2 )
1377                                                                 audio_buf_2 = av_mallocz( AUDIO_ENCODE_BUFFER_SIZE );
1378                                                         else
1379                                                                 memset( audio_buf_2, 0, AUDIO_ENCODE_BUFFER_SIZE );
1380
1381                                                         // For each output channel
1382                                                         while ( dest_offset < current_channels && j < total_channels )
1383                                                         {
1384                                                                 int map_start = -1, map_channels = 0;
1385                                                                 int source_offset = 0;
1386                                                                 int k;
1387
1388                                                                 // Look for a mapping that starts at j
1389                                                                 for ( k = 0; k < (MAX_AUDIO_STREAMS * 2) && map_start != j; k++ )
1390                                                                 {
1391                                                                         sprintf( key, "%d.channels", k );
1392                                                                         map_channels = mlt_properties_get_int( frame_meta_properties, key );
1393                                                                         sprintf( key, "%d.start", k );
1394                                                                         if ( mlt_properties_get( frame_meta_properties, key ) )
1395                                                                                 map_start = mlt_properties_get_int( frame_meta_properties, key );
1396                                                                         if ( map_start != j )
1397                                                                                 source_offset += map_channels;
1398                                                                 }
1399
1400                                                                 // If no mapping
1401                                                                 if ( map_start != j )
1402                                                                 {
1403                                                                         map_channels = current_channels;
1404                                                                         source_offset = j;
1405                                                                 }
1406
1407                                                                 // Copy samples if source offset valid
1408                                                                 if ( source_offset < channels )
1409                                                                 {
1410                                                                         // Interleave the audio buffer with the # channels for this stream/mapping.
1411                                                                         for ( k = 0; k < map_channels; k++, j++, source_offset++, dest_offset++ )
1412                                                                         {
1413                                                                                 int16_t *src = audio_buf_1 + source_offset;
1414                                                                                 int16_t *dest = audio_buf_2 + dest_offset;
1415                                                                                 int s = samples + 1;
1416
1417                                                                                 while ( --s ) {
1418                                                                                         *dest = *src;
1419                                                                                         dest += current_channels;
1420                                                                                         src += channels;
1421                                                                                 }
1422                                                                         }
1423                                                                 }
1424                                                                 // Otherwise silence
1425                                                                 else
1426                                                                 {
1427                                                                         j += current_channels;
1428                                                                         dest_offset += current_channels;
1429                                                                 }
1430                                                         }
1431                                                         pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, audio_buf_2 );
1432                                                 }
1433
1434                                                 // Write the compressed frame in the media file
1435                                                 if ( codec->coded_frame && codec->coded_frame->pts != AV_NOPTS_VALUE )
1436                                                 {
1437                                                         pkt.pts = av_rescale_q( codec->coded_frame->pts, codec->time_base, stream->time_base );
1438                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio stream %d pkt pts %"PRId64" frame pts %"PRId64,
1439                                                                 stream->index, pkt.pts, codec->coded_frame->pts );
1440                                                 }
1441                                                 pkt.flags |= PKT_FLAG_KEY;
1442                                                 pkt.stream_index = stream->index;
1443                                                 pkt.data = audio_outbuf;
1444
1445                                                 if ( pkt.size > 0 )
1446                                                 {
1447                                                         if ( av_interleaved_write_frame( oc, &pkt ) )
1448                                                         {
1449                                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing audio frame\n" );
1450                                                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1451                                                                 goto on_fatal_error;
1452                                                         }
1453                                                 }
1454
1455                                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", codec->frame_size );
1456                                                 if ( i == 0 )
1457                                                 {
1458                                                         audio_pts = (double)stream->pts.val * av_q2d( stream->time_base );
1459                                                 }
1460                                         }
1461                                 }
1462                                 else
1463                                 {
1464                                         break;
1465                                 }
1466                         }
1467                         else if ( video_st )
1468                         {
1469                                 // Write video
1470                                 if ( mlt_deque_count( queue ) )
1471                                 {
1472                                         int out_size, ret = 0;
1473                                         AVCodecContext *c;
1474
1475                                         frame = mlt_deque_pop_front( queue );
1476                                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1477
1478                                         c = video_st->codec;
1479
1480                                         if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1481                                         {
1482                                                 int i = 0;
1483                                                 uint8_t *p;
1484                                                 uint8_t *q;
1485
1486                                                 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1487
1488                                                 q = image;
1489
1490                                                 // Convert the mlt frame to an AVPicture
1491                                                 for ( i = 0; i < height; i ++ )
1492                                                 {
1493                                                         p = input->data[ 0 ] + i * input->linesize[ 0 ];
1494                                                         memcpy( p, q, width * 2 );
1495                                                         q += width * 2;
1496                                                 }
1497
1498                                                 // Do the colour space conversion
1499 #ifdef SWSCALE
1500                                                 int flags = SWS_BILINEAR;
1501 #ifdef USE_MMX
1502                                                 flags |= SWS_CPU_CAPS_MMX;
1503 #endif
1504 #ifdef USE_SSE
1505                                                 flags |= SWS_CPU_CAPS_MMX2;
1506 #endif
1507                                                 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1508                                                         width, height, video_st->codec->pix_fmt, flags, NULL, NULL, NULL);
1509                                                 sws_scale( context, (const uint8_t* const*) input->data, input->linesize, 0, height,
1510                                                         output->data, output->linesize);
1511                                                 sws_freeContext( context );
1512 #else
1513                                                 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1514 #endif
1515
1516                                                 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1517
1518                                                 // Apply the alpha if applicable
1519                                                 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1520                                                 {
1521                                                         uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1522                                                         register int n;
1523
1524                                                         for ( i = 0; i < height; i ++ )
1525                                                         {
1526                                                                 n = ( width + 7 ) / 8;
1527                                                                 p = output->data[ 0 ] + i * output->linesize[ 0 ] + 3;
1528
1529                                                                 switch( width % 8 )
1530                                                                 {
1531                                                                         case 0: do { *p = *alpha++; p += 4;
1532                                                                         case 7:          *p = *alpha++; p += 4;
1533                                                                         case 6:          *p = *alpha++; p += 4;
1534                                                                         case 5:          *p = *alpha++; p += 4;
1535                                                                         case 4:          *p = *alpha++; p += 4;
1536                                                                         case 3:          *p = *alpha++; p += 4;
1537                                                                         case 2:          *p = *alpha++; p += 4;
1538                                                                         case 1:          *p = *alpha++; p += 4;
1539                                                                                         }
1540                                                                                         while( --n );
1541                                                                 }
1542                                                         }
1543                                                 }
1544                                         }
1545
1546                                         if (oc->oformat->flags & AVFMT_RAWPICTURE)
1547                                         {
1548                                                 // raw video case. The API will change slightly in the near future for that
1549                                                 AVPacket pkt;
1550                                                 av_init_packet(&pkt);
1551
1552                                                 pkt.flags |= PKT_FLAG_KEY;
1553                                                 pkt.stream_index= video_st->index;
1554                                                 pkt.data= (uint8_t *)output;
1555                                                 pkt.size= sizeof(AVPicture);
1556
1557                                                 ret = av_write_frame(oc, &pkt);
1558                                                 video_pts += c->frame_size;
1559                                         }
1560                                         else
1561                                         {
1562                                                 // Set the quality
1563                                                 output->quality = video_st->quality;
1564
1565                                                 // Set frame interlace hints
1566                                                 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1567                                                 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1568                                                 output->pts = frame_count;
1569
1570                                                 // Encode the image
1571                                                 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1572
1573                                                 // If zero size, it means the image was buffered
1574                                                 if ( out_size > 0 )
1575                                                 {
1576                                                         AVPacket pkt;
1577                                                         av_init_packet( &pkt );
1578
1579                                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1580                                                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1581                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pkt pts %"PRId64" frame pts %"PRId64, pkt.pts, c->coded_frame->pts );
1582                                                         if( c->coded_frame && c->coded_frame->key_frame )
1583                                                                 pkt.flags |= PKT_FLAG_KEY;
1584                                                         pkt.stream_index= video_st->index;
1585                                                         pkt.data= video_outbuf;
1586                                                         pkt.size= out_size;
1587
1588                                                         // write the compressed frame in the media file
1589                                                         ret = av_interleaved_write_frame(oc, &pkt);
1590                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", c->frame_size );
1591                                                         video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1592
1593                                                         // Dual pass logging
1594                                                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1595                                                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1596                                                 }
1597                                                 else if ( out_size < 0 )
1598                                                 {
1599                                                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with video encode %d\n", frame_count );
1600                                                 }
1601                                         }
1602                                         frame_count++;
1603                                         if ( ret )
1604                                         {
1605                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing video frame\n" );
1606                                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1607                                                 goto on_fatal_error;
1608                                         }
1609                                         mlt_frame_close( frame );
1610                                 }
1611                                 else
1612                                 {
1613                                         break;
1614                                 }
1615                         }
1616                         if ( audio_st[0] )
1617                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio pts %"PRId64" (%f) ", audio_st[0]->pts.val, audio_pts );
1618                         if ( video_st )
1619                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pts %"PRId64" (%f) ", video_st->pts.val, video_pts );
1620                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "\n" );
1621                 }
1622
1623                 if ( real_time_output == 1 && frames % 2 == 0 )
1624                 {
1625                         long passed = time_difference( &ante );
1626                         if ( fifo != NULL )
1627                         {
1628                                 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1629                                 passed -= pending;
1630                         }
1631                         if ( passed < total_time )
1632                         {
1633                                 long total = ( total_time - passed );
1634                                 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1635                                 nanosleep( &t, NULL );
1636                         }
1637                 }
1638         }
1639
1640         // Flush the encoder buffers
1641         if ( real_time_output <= 0 )
1642         {
1643                 // Flush audio fifo
1644                 // TODO: flush all audio streams
1645                 if ( audio_st[0] && audio_st[0]->codec->frame_size > 1 ) for (;;)
1646                 {
1647                         AVCodecContext *c = audio_st[0]->codec;
1648                         AVPacket pkt;
1649                         av_init_packet( &pkt );
1650                         pkt.size = 0;
1651
1652                         if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1653                                 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1654                         {
1655                                 sample_fifo_fetch( fifo, audio_buf_1, channels * audio_input_frame_size );
1656                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, audio_buf_1 );
1657                         }
1658                         if ( pkt.size <= 0 )
1659                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1660                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
1661                         if ( pkt.size <= 0 )
1662                                 break;
1663
1664                         // Write the compressed frame in the media file
1665                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1666                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st[0]->time_base );
1667                         pkt.flags |= PKT_FLAG_KEY;
1668                         pkt.stream_index = audio_st[0]->index;
1669                         pkt.data = audio_outbuf;
1670                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1671                         {
1672                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing flushed audio frame\n" );
1673                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1674                                 goto on_fatal_error;
1675                         }
1676                 }
1677
1678                 // Flush video
1679                 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1680                 {
1681                         AVCodecContext *c = video_st->codec;
1682                         AVPacket pkt;
1683                         av_init_packet( &pkt );
1684
1685                         // Encode the image
1686                         pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1687                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing video size %d\n", pkt.size );
1688                         if ( pkt.size <= 0 )
1689                                 break;
1690
1691                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1692                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1693                         if( c->coded_frame && c->coded_frame->key_frame )
1694                                 pkt.flags |= PKT_FLAG_KEY;
1695                         pkt.stream_index = video_st->index;
1696                         pkt.data = video_outbuf;
1697
1698                         // write the compressed frame in the media file
1699                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1700                         {
1701                                 mlt_log_fatal( MLT_CONSUMER_SERVICE(consumer), "error writing flushed video frame\n" );
1702                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1703                                 goto on_fatal_error;
1704                         }
1705                         // Dual pass logging
1706                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1707                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1708                 }
1709         }
1710
1711 on_fatal_error:
1712
1713         // Write the trailer, if any
1714         av_write_trailer( oc );
1715
1716         // close each codec
1717         if ( video_st )
1718                 close_video(oc, video_st);
1719         for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1720                 close_audio( oc, audio_st[i] );
1721
1722         // Free the streams
1723         for ( i = 0; i < oc->nb_streams; i++ )
1724                 av_freep( &oc->streams[i] );
1725
1726         // Close the output file
1727         if ( !( fmt->flags & AVFMT_NOFILE ) )
1728 #if LIBAVFORMAT_VERSION_MAJOR > 52
1729                 avio_close( oc->pb );
1730 #elif LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1731                 url_fclose( oc->pb );
1732 #else
1733                 url_fclose( &oc->pb );
1734 #endif
1735
1736         // Clean up input and output frames
1737         if ( output )
1738                 av_free( output->data[0] );
1739         av_free( output );
1740         av_free( input->data[0] );
1741         av_free( input );
1742         av_free( video_outbuf );
1743         av_free( audio_buf_1 );
1744         av_free( audio_buf_2 );
1745
1746         // Free the stream
1747         av_free( oc );
1748
1749         // Just in case we terminated on pause
1750         mlt_properties_set_int( properties, "running", 0 );
1751
1752         mlt_consumer_stopped( consumer );
1753         mlt_properties_close( frame_meta_properties );
1754
1755         if ( mlt_properties_get_int( properties, "pass" ) > 1 )
1756         {
1757                 // Remove the dual pass log file
1758                 if ( mlt_properties_get( properties, "_logfilename" ) )
1759                         remove( mlt_properties_get( properties, "_logfilename" ) );
1760
1761                 // Remove the x264 dual pass logs
1762                 char *cwd = getcwd( NULL, 0 );
1763                 const char *file = "x264_2pass.log";
1764                 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1765                 sprintf( full, "%s/%s", cwd, file );
1766                 remove( full );
1767                 free( full );
1768                 file = "x264_2pass.log.temp";
1769                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1770                 sprintf( full, "%s/%s", cwd, file );
1771                 remove( full );
1772                 free( full );
1773                 file = "x264_2pass.log.mbtree";
1774                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1775                 sprintf( full, "%s/%s", cwd, file );
1776                 remove( full );
1777                 free( full );
1778                 free( cwd );
1779                 remove( "x264_2pass.log.temp" );
1780         }
1781
1782         return NULL;
1783 }
1784
1785 /** Close the consumer.
1786 */
1787
1788 static void consumer_close( mlt_consumer consumer )
1789 {
1790         // Stop the consumer
1791         mlt_consumer_stop( consumer );
1792
1793         // Close the parent
1794         mlt_consumer_close( consumer );
1795
1796         // Free the memory
1797         free( consumer );
1798 }