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) 2003-2012 Ushodaya Enterprises Limited
   4  * Author: Charles Yates <charles.yates@pandora.be>
   5  * Author: Dan Dennedy <dan@dennedy.org>
   6  * Much code borrowed from ffmpeg.c: Copyright (c) 2000-2003 Fabrice Bellard
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 // mlt Header files
  24 #include <framework/mlt_consumer.h>
  25 #include <framework/mlt_frame.h>
  26 #include <framework/mlt_profile.h>
  27 #include <framework/mlt_log.h>
  28 #include <framework/mlt_events.h>
  29
  30 // System header files
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <limits.h>
  35 #include <pthread.h>
  36 #include <sys/time.h>
  37 #include <unistd.h>
  38
  39 // avformat header files
  40 #include <libavformat/avformat.h>
  41 #include <libavformat/avio.h>
  42 #ifdef SWSCALE
  43 #include <libswscale/swscale.h>
  44 #endif
  45 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
  46 #include <libavutil/pixdesc.h>
  47 #endif
  48 #include <libavutil/mathematics.h>
  49
  50 #if LIBAVUTIL_VERSION_INT < (50<<16)
  51 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
  52 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
  53 #endif
  54
  55 #if LIBAVCODEC_VERSION_MAJOR >= 53
  56 #include <libavutil/opt.h>
  57 #define CODEC_TYPE_VIDEO      AVMEDIA_TYPE_VIDEO
  58 #define CODEC_TYPE_AUDIO      AVMEDIA_TYPE_AUDIO
  59 #define PKT_FLAG_KEY AV_PKT_FLAG_KEY
  60 #else
  61 #include <libavcodec/opt.h>
  62 #endif
  63
  64 #define MAX_AUDIO_STREAMS (8)
  65 #define AUDIO_ENCODE_BUFFER_SIZE (48000 * 2 * MAX_AUDIO_STREAMS)
  66 #define AUDIO_BUFFER_SIZE (1024 * 42)
  67 #define VIDEO_BUFFER_SIZE (2048 * 1024)
  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                 // Some AVOption defaults we like
 199                 mlt_properties_set( properties, "strict", "experimental" );
 200
 201                 // Ensure termination at end of the stream
 202                 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
 203
 204                 // Default to separate processing threads for producer and consumer with no frame dropping!
 205                 mlt_properties_set_int( properties, "real_time", -1 );
 206                 mlt_properties_set_int( properties, "prefill", 1 );
 207
 208                 // Set up start/stop/terminated callbacks
 209                 consumer->start = consumer_start;
 210                 consumer->stop = consumer_stop;
 211                 consumer->is_stopped = consumer_is_stopped;
 212
 213                 mlt_events_register( properties, "consumer-fatal-error", NULL );
 214         }
 215
 216         // Return consumer
 217         return consumer;
 218 }
 219
 220 /** Start the consumer.
 221 */
 222
 223 static int consumer_start( mlt_consumer consumer )
 224 {
 225         // Get the properties
 226         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 227         int error = 0;
 228
 229         // Report information about available muxers and codecs as YAML Tiny
 230         char *s = mlt_properties_get( properties, "f" );
 231         if ( s && strcmp( s, "list" ) == 0 )
 232         {
 233                 mlt_properties doc = mlt_properties_new();
 234                 mlt_properties formats = mlt_properties_new();
 235                 char key[20];
 236                 AVOutputFormat *format = NULL;
 237
 238                 mlt_properties_set_data( properties, "f", formats, 0, (mlt_destructor) mlt_properties_close, NULL );
 239                 mlt_properties_set_data( doc, "formats", formats, 0, NULL, NULL );
 240                 while ( ( format = av_oformat_next( format ) ) )
 241                 {
 242                         snprintf( key, sizeof(key), "%d", mlt_properties_count( formats ) );
 243                         mlt_properties_set( formats, key, format->name );
 244                 }
 245                 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
 246                 mlt_properties_close( doc );
 247                 error = 1;
 248         }
 249         s = mlt_properties_get( properties, "acodec" );
 250         if ( s && strcmp( s, "list" ) == 0 )
 251         {
 252                 mlt_properties doc = mlt_properties_new();
 253                 mlt_properties codecs = mlt_properties_new();
 254                 char key[20];
 255                 AVCodec *codec = NULL;
 256
 257                 mlt_properties_set_data( properties, "acodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
 258                 mlt_properties_set_data( doc, "audio_codecs", codecs, 0, NULL, NULL );
 259                 while ( ( codec = av_codec_next( codec ) ) )
 260                         if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
 261                         {
 262                                 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
 263                                 mlt_properties_set( codecs, key, codec->name );
 264                         }
 265                 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
 266                 mlt_properties_close( doc );
 267                 error = 1;
 268         }
 269         s = mlt_properties_get( properties, "vcodec" );
 270         if ( s && strcmp( s, "list" ) == 0 )
 271         {
 272                 mlt_properties doc = mlt_properties_new();
 273                 mlt_properties codecs = mlt_properties_new();
 274                 char key[20];
 275                 AVCodec *codec = NULL;
 276
 277                 mlt_properties_set_data( properties, "vcodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
 278                 mlt_properties_set_data( doc, "video_codecs", codecs, 0, NULL, NULL );
 279                 while ( ( codec = av_codec_next( codec ) ) )
 280                         if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
 281                         {
 282                                 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
 283                                 mlt_properties_set( codecs, key, codec->name );
 284                         }
 285                 fprintf( stdout, "%s", mlt_properties_serialise_yaml( doc ) );
 286                 mlt_properties_close( doc );
 287                 error = 1;
 288         }
 289
 290         // Check that we're not already running
 291         if ( !error && !mlt_properties_get_int( properties, "running" ) )
 292         {
 293                 // Allocate a thread
 294                 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
 295
 296                 // Get the width and height
 297                 int width = mlt_properties_get_int( properties, "width" );
 298                 int height = mlt_properties_get_int( properties, "height" );
 299
 300                 // Obtain the size property
 301                 char *size = mlt_properties_get( properties, "s" );
 302
 303                 // Interpret it
 304                 if ( size != NULL )
 305                 {
 306                         int tw, th;
 307                         if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
 308                         {
 309                                 width = tw;
 310                                 height = th;
 311                         }
 312                         else
 313                         {
 314                                 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Invalid size property %s - ignoring.\n", size );
 315                         }
 316                 }
 317
 318                 // Now ensure we honour the multiple of two requested by libavformat
 319                 width = ( width / 2 ) * 2;
 320                 height = ( height / 2 ) * 2;
 321                 mlt_properties_set_int( properties, "width", width );
 322                 mlt_properties_set_int( properties, "height", height );
 323
 324                 // We need to set these on the profile as well because the s property is
 325                 // an alias to mlt properties that correspond to profile settings.
 326                 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
 327                 if ( profile )
 328                 {
 329                         profile->width = width;
 330                         profile->height = height;
 331                 }
 332
 333                 // Handle the ffmpeg command line "-r" property for frame rate
 334                 if ( mlt_properties_get( properties, "r" ) )
 335                 {
 336                         double frame_rate = mlt_properties_get_double( properties, "r" );
 337                         AVRational rational = av_d2q( frame_rate, 255 );
 338                         mlt_properties_set_int( properties, "frame_rate_num", rational.num );
 339                         mlt_properties_set_int( properties, "frame_rate_den", rational.den );
 340                         if ( profile )
 341                         {
 342                                 profile->frame_rate_num = rational.num;
 343                                 profile->frame_rate_den = rational.den;
 344                                 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
 345                         }
 346                 }
 347
 348                 // Apply AVOptions that are synonyms for standard mlt_consumer options
 349                 if ( mlt_properties_get( properties, "ac" ) )
 350                         mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
 351                 if ( mlt_properties_get( properties, "ar" ) )
 352                         mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
 353
 354                 // Assign the thread to properties
 355                 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
 356
 357                 // Set the running state
 358                 mlt_properties_set_int( properties, "running", 1 );
 359
 360                 // Create the thread
 361                 pthread_create( thread, NULL, consumer_thread, consumer );
 362         }
 363         return error;
 364 }
 365
 366 /** Stop the consumer.
 367 */
 368
 369 static int consumer_stop( mlt_consumer consumer )
 370 {
 371         // Get the properties
 372         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 373
 374         // Check that we're running
 375         if ( mlt_properties_get_int( properties, "running" ) )
 376         {
 377                 // Get the thread
 378                 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
 379
 380                 // Stop the thread
 381                 mlt_properties_set_int( properties, "running", 0 );
 382
 383                 // Wait for termination
 384                 pthread_join( *thread, NULL );
 385         }
 386
 387         return 0;
 388 }
 389
 390 /** Determine if the consumer is stopped.
 391 */
 392
 393 static int consumer_is_stopped( mlt_consumer consumer )
 394 {
 395         // Get the properties
 396         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 397         return !mlt_properties_get_int( properties, "running" );
 398 }
 399
 400 /** Process properties as AVOptions and apply to AV context obj
 401 */
 402
 403 static void apply_properties( void *obj, mlt_properties properties, int flags )
 404 {
 405         int i;
 406         int count = mlt_properties_count( properties );
 407 #if LIBAVUTIL_VERSION_INT < ((51<<16)+(12<<8)+0)
 408         int alloc = 1;
 409 #endif
 410
 411         for ( i = 0; i < count; i++ )
 412         {
 413                 const char *opt_name = mlt_properties_get_name( properties, i );
 414 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(7<<8)+0)
 415                 const AVOption *opt = av_opt_find( obj, opt_name, NULL, flags, flags );
 416 #else
 417                 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
 418 #endif
 419
 420                 // If option not found, see if it was prefixed with a or v (-vb)
 421                 if ( !opt && (
 422                         ( opt_name[0] == 'v' && ( flags & AV_OPT_FLAG_VIDEO_PARAM ) ) ||
 423                         ( opt_name[0] == 'a' && ( flags & AV_OPT_FLAG_AUDIO_PARAM ) ) ) )
 424 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(7<<8)+0)
 425                         opt = av_opt_find( obj, ++opt_name, NULL, flags, flags );
 426 #else
 427                         opt = av_find_opt( obj, ++opt_name, NULL, flags, flags );
 428 #endif
 429                 // Apply option if found
 430                 if ( opt )
 431 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(12<<8)+0)
 432                         av_opt_set( obj, opt_name, mlt_properties_get_value( properties, i), 0 );
 433 #elif LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
 434                         av_set_string3( obj, opt_name, mlt_properties_get_value( properties, i), alloc, NULL );
 435 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
 436                         av_set_string2( obj, opt_name, mlt_properties_get_value( properties, i), alloc );
 437 #else
 438                         av_set_string( obj, opt_name, mlt_properties_get_value( properties, i) );
 439 #endif
 440         }
 441 }
 442
 443 /** Add an audio output stream
 444 */
 445
 446 static AVStream *add_audio_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec, int channels )
 447 {
 448         // Get the properties
 449         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 450
 451         // Create a new stream
 452 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
 453         AVStream *st = avformat_new_stream( oc, codec );
 454 #else
 455         AVStream *st = av_new_stream( oc, oc->nb_streams );
 456 #endif
 457
 458         // If created, then initialise from properties
 459         if ( st != NULL )
 460         {
 461                 AVCodecContext *c = st->codec;
 462
 463                 // Establish defaults from AVOptions
 464 #if LIBAVCODEC_VERSION_MAJOR >= 53
 465                 avcodec_get_context_defaults3( c, codec );
 466 #else
 467                 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
 468 #endif
 469
 470                 c->codec_id = codec->id;
 471                 c->codec_type = CODEC_TYPE_AUDIO;
 472                 c->sample_fmt = SAMPLE_FMT_S16;
 473
 474 #if 0 // disabled until some audio codecs are multi-threaded
 475                 // Setup multi-threading
 476                 int thread_count = mlt_properties_get_int( properties, "threads" );
 477                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 478                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 479                 if ( thread_count > 1 )
 480                         c->thread_count = thread_count;
 481 #endif
 482
 483                 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 484                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 485
 486                 // Allow the user to override the audio fourcc
 487                 if ( mlt_properties_get( properties, "atag" ) )
 488                 {
 489                         char *tail = NULL;
 490                         char *arg = mlt_properties_get( properties, "atag" );
 491                         int tag = strtol( arg, &tail, 0);
 492                         if( !tail || *tail )
 493                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 494                         c->codec_tag = tag;
 495                 }
 496
 497                 // Process properties as AVOptions
 498                 char *apre = mlt_properties_get( properties, "apre" );
 499                 if ( apre )
 500                 {
 501                         mlt_properties p = mlt_properties_load( apre );
 502                         apply_properties( c, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 503                         mlt_properties_close( p );
 504                 }
 505                 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 506
 507                 int audio_qscale = mlt_properties_get_int( properties, "aq" );
 508         if ( audio_qscale > QSCALE_NONE )
 509                 {
 510                         c->flags |= CODEC_FLAG_QSCALE;
 511                         c->global_quality = FF_QP2LAMBDA * audio_qscale;
 512 #if LIBAVFORMAT_VERSION_MAJOR < 53
 513                         st->quality = c->global_quality;
 514 #endif
 515                 }
 516
 517                 // Set parameters controlled by MLT
 518                 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
 519                 c->time_base = ( AVRational ){ 1, c->sample_rate };
 520                 c->channels = channels;
 521
 522                 if ( mlt_properties_get( properties, "alang" ) != NULL )
 523 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
 524 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
 525                         av_dict_set( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
 526 #else
 527                         av_metadata_set2( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
 528 #endif
 529 #else
 530
 531                         strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
 532 #endif
 533         }
 534         else
 535         {
 536                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for audio\n" );
 537         }
 538
 539         return st;
 540 }
 541
 542 static int open_audio( mlt_properties properties, AVFormatContext *oc, AVStream *st, int audio_outbuf_size, const char *codec_name )
 543 {
 544         // We will return the audio input size from here
 545         int audio_input_frame_size = 0;
 546
 547         // Get the context
 548         AVCodecContext *c = st->codec;
 549
 550         // Find the encoder
 551         AVCodec *codec;
 552         if ( codec_name )
 553                 codec = avcodec_find_encoder_by_name( codec_name );
 554         else
 555                 codec = avcodec_find_encoder( c->codec_id );
 556
 557 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(122<<8)+0)
 558         // Process properties as AVOptions on the AVCodec
 559         if ( codec && codec->priv_class )
 560         {
 561                 char *apre = mlt_properties_get( properties, "apre" );
 562                 if ( !c->priv_data && codec->priv_data_size )
 563                 {
 564                         c->priv_data = av_mallocz( codec->priv_data_size );
 565                         *(const AVClass **) c->priv_data = codec->priv_class;
 566 //                      av_opt_set_defaults( c );
 567                 }
 568                 if ( apre )
 569                 {
 570                         mlt_properties p = mlt_properties_load( apre );
 571                         apply_properties( c->priv_data, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 572                         mlt_properties_close( p );
 573                 }
 574                 apply_properties( c->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 575         }
 576 #endif
 577
 578         // Continue if codec found and we can open it
 579 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
 580         if ( codec && avcodec_open2( c, codec, NULL ) >= 0 )
 581 #else
 582         if ( codec && avcodec_open( c, codec ) >= 0 )
 583 #endif
 584         {
 585                 // ugly hack for PCM codecs (will be removed ASAP with new PCM
 586                 // support to compute the input frame size in samples
 587                 if ( c->frame_size <= 1 )
 588                 {
 589                         audio_input_frame_size = audio_outbuf_size / c->channels;
 590                         switch(st->codec->codec_id)
 591                         {
 592                                 case CODEC_ID_PCM_S16LE:
 593                                 case CODEC_ID_PCM_S16BE:
 594                                 case CODEC_ID_PCM_U16LE:
 595                                 case CODEC_ID_PCM_U16BE:
 596                                         audio_input_frame_size >>= 1;
 597                                         break;
 598                                 default:
 599                                         break;
 600                         }
 601                 }
 602                 else
 603                 {
 604                         audio_input_frame_size = c->frame_size;
 605                 }
 606
 607                 // Some formats want stream headers to be seperate (hmm)
 608                 if ( !strcmp( oc->oformat->name, "mp4" ) ||
 609                          !strcmp( oc->oformat->name, "mov" ) ||
 610                          !strcmp( oc->oformat->name, "3gp" ) )
 611                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 612         }
 613         else
 614         {
 615                 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
 616         }
 617
 618         return audio_input_frame_size;
 619 }
 620
 621 static void close_audio( AVFormatContext *oc, AVStream *st )
 622 {
 623         if ( st && st->codec )
 624                 avcodec_close( st->codec );
 625 }
 626
 627 /** Add a video output stream
 628 */
 629
 630 static AVStream *add_video_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec )
 631 {
 632         // Get the properties
 633         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 634
 635         // Create a new stream
 636 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
 637         AVStream *st = avformat_new_stream( oc, codec );
 638 #else
 639         AVStream *st = av_new_stream( oc, oc->nb_streams );
 640 #endif
 641
 642         if ( st != NULL )
 643         {
 644                 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
 645                 AVCodecContext *c = st->codec;
 646
 647                 // Establish defaults from AVOptions
 648 #if LIBAVCODEC_VERSION_MAJOR >= 53
 649                 avcodec_get_context_defaults3( c, codec );
 650 #else
 651                 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
 652 #endif
 653
 654                 c->codec_id = codec->id;
 655                 c->codec_type = CODEC_TYPE_VIDEO;
 656
 657                 // Setup multi-threading
 658                 int thread_count = mlt_properties_get_int( properties, "threads" );
 659                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 660                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 661                 if ( thread_count > 1 )
 662 #if LIBAVCODEC_VERSION_MAJOR >= 53
 663                         c->thread_count = thread_count;
 664 #else
 665                         avcodec_thread_init( c, thread_count );
 666 #endif
 667
 668                 // Process properties as AVOptions
 669                 char *vpre = mlt_properties_get( properties, "vpre" );
 670                 if ( vpre )
 671                 {
 672                         mlt_properties p = mlt_properties_load( vpre );
 673 #ifdef AVDATADIR
 674                         if ( mlt_properties_count( p ) < 1 )
 675                         {
 676                                 AVCodec *codec = avcodec_find_encoder( c->codec_id );
 677                                 if ( codec )
 678                                 {
 679                                         char *path = malloc( strlen(AVDATADIR) + strlen(codec->name) + strlen(vpre) + strlen(".ffpreset") + 2 );
 680                                         strcpy( path, AVDATADIR );
 681                                         strcat( path, codec->name );
 682                                         strcat( path, "-" );
 683                                         strcat( path, vpre );
 684                                         strcat( path, ".ffpreset" );
 685
 686                                         mlt_properties_close( p );
 687                                         p = mlt_properties_load( path );
 688                                         if ( mlt_properties_count( p ) > 0 )
 689                                                 mlt_properties_debug( p, path, stderr );
 690                                         free( path );
 691                                 }
 692                         }
 693                         else
 694                         {
 695                                 mlt_properties_debug( p, vpre, stderr );
 696                         }
 697 #endif
 698                         apply_properties( c, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 699                         mlt_properties_close( p );
 700                 }
 701                 int colorspace = mlt_properties_get_int( properties, "colorspace" );
 702                 mlt_properties_set( properties, "colorspace", NULL );
 703                 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 704                 mlt_properties_set_int( properties, "colorspace", colorspace );
 705
 706                 // Set options controlled by MLT
 707                 c->width = mlt_properties_get_int( properties, "width" );
 708                 c->height = mlt_properties_get_int( properties, "height" );
 709                 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
 710                 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
 711                 if ( st->time_base.den == 0 )
 712                         st->time_base = c->time_base;
 713 #if LIBAVUTIL_VERSION_INT >= ((50<<16)+(8<<8)+0)
 714                 c->pix_fmt = pix_fmt ? av_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 715 #else
 716                 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 717 #endif
 718
 719 #if LIBAVCODEC_VERSION_INT > ((52<<16)+(28<<8)+0)
 720                 switch ( colorspace )
 721                 {
 722                 case 170:
 723                         c->colorspace = AVCOL_SPC_SMPTE170M;
 724                         break;
 725                 case 240:
 726                         c->colorspace = AVCOL_SPC_SMPTE240M;
 727                         break;
 728                 case 470:
 729                         c->colorspace = AVCOL_SPC_BT470BG;
 730                         break;
 731                 case 601:
 732                         c->colorspace = ( 576 % c->height ) ? AVCOL_SPC_SMPTE170M : AVCOL_SPC_BT470BG;
 733                         break;
 734                 case 709:
 735                         c->colorspace = AVCOL_SPC_BT709;
 736                         break;
 737                 }
 738 #endif
 739
 740                 if ( mlt_properties_get( properties, "aspect" ) )
 741                 {
 742                         // "-aspect" on ffmpeg command line is display aspect ratio
 743                         double ar = mlt_properties_get_double( properties, "aspect" );
 744                         AVRational rational = av_d2q( ar, 255 );
 745
 746                         // Update the profile and properties as well since this is an alias
 747                         // for mlt properties that correspond to profile settings
 748                         mlt_properties_set_int( properties, "display_aspect_num", rational.num );
 749                         mlt_properties_set_int( properties, "display_aspect_den", rational.den );
 750                         mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
 751                         if ( profile )
 752                         {
 753                                 profile->display_aspect_num = rational.num;
 754                                 profile->display_aspect_den = rational.den;
 755                                 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
 756                         }
 757
 758                         // Now compute the sample aspect ratio
 759                         rational = av_d2q( ar * c->height / c->width, 255 );
 760                         c->sample_aspect_ratio = rational;
 761                         // Update the profile and properties as well since this is an alias
 762                         // for mlt properties that correspond to profile settings
 763                         mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
 764                         mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
 765                         if ( profile )
 766                         {
 767                                 profile->sample_aspect_num = rational.num;
 768                                 profile->sample_aspect_den = rational.den;
 769                                 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
 770                         }
 771                 }
 772                 else
 773                 {
 774                         c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
 775                         c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
 776                 }
 777 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 778                 st->sample_aspect_ratio = c->sample_aspect_ratio;
 779 #endif
 780
 781                 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
 782                 {
 783                         c->flags |= CODEC_FLAG_QSCALE;
 784                         c->global_quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
 785 #if LIBAVFORMAT_VERSION_MAJOR < 53
 786                         st->quality = c->global_quality;
 787 #endif
 788                 }
 789
 790                 // Allow the user to override the video fourcc
 791                 if ( mlt_properties_get( properties, "vtag" ) )
 792                 {
 793                         char *tail = NULL;
 794                         const char *arg = mlt_properties_get( properties, "vtag" );
 795                         int tag = strtol( arg, &tail, 0);
 796                         if( !tail || *tail )
 797                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 798                         c->codec_tag = tag;
 799                 }
 800
 801                 // Some formats want stream headers to be seperate
 802                 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
 803                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 804
 805                 // Translate these standard mlt consumer properties to ffmpeg
 806                 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
 807                      mlt_properties_get_int( properties, "deinterlace" ) == 0 )
 808                 {
 809                         if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
 810                                 c->flags |= CODEC_FLAG_INTERLACED_DCT;
 811                         if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
 812                                 c->flags |= CODEC_FLAG_INTERLACED_ME;
 813                 }
 814
 815                 // parse the ratecontrol override string
 816                 int i;
 817                 char *rc_override = mlt_properties_get( properties, "rc_override" );
 818                 for ( i = 0; rc_override; i++ )
 819                 {
 820                         int start, end, q;
 821                         int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
 822                         if ( e != 3 )
 823                                 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Error parsing rc_override\n" );
 824                         c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
 825                         c->rc_override[i].start_frame = start;
 826                         c->rc_override[i].end_frame = end;
 827                         if ( q > 0 )
 828                         {
 829                                 c->rc_override[i].qscale = q;
 830                                 c->rc_override[i].quality_factor = 1.0;
 831                         }
 832                         else
 833                         {
 834                                 c->rc_override[i].qscale = 0;
 835                                 c->rc_override[i].quality_factor = -q / 100.0;
 836                         }
 837                         rc_override = strchr( rc_override, '/' );
 838                         if ( rc_override )
 839                                 rc_override++;
 840                 }
 841                 c->rc_override_count = i;
 842                 if ( !c->rc_initial_buffer_occupancy )
 843                         c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
 844                 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
 845
 846                 // Setup dual-pass
 847                 i = mlt_properties_get_int( properties, "pass" );
 848                 if ( i == 1 )
 849                         c->flags |= CODEC_FLAG_PASS1;
 850                 else if ( i == 2 )
 851                         c->flags |= CODEC_FLAG_PASS2;
 852                 if ( codec->id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
 853                 {
 854                         char logfilename[1024];
 855                         FILE *f;
 856                         int size;
 857                         char *logbuffer;
 858
 859                         snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
 860                                 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
 861                         if ( c->flags & CODEC_FLAG_PASS1 )
 862                         {
 863                                 f = fopen( logfilename, "w" );
 864                                 if ( !f )
 865                                         perror( logfilename );
 866                                 else
 867                                         mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
 868                         }
 869                         else
 870                         {
 871                                 /* read the log file */
 872                                 f = fopen( logfilename, "r" );
 873                                 if ( !f )
 874                                 {
 875                                         perror(logfilename);
 876                                 }
 877                                 else
 878                                 {
 879                                         mlt_properties_set( properties, "_logfilename", logfilename );
 880                                         fseek( f, 0, SEEK_END );
 881                                         size = ftell( f );
 882                                         fseek( f, 0, SEEK_SET );
 883                                         logbuffer = av_malloc( size + 1 );
 884                                         if ( !logbuffer )
 885                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate log buffer\n" );
 886                                         else
 887                                         {
 888                                                 size = fread( logbuffer, 1, size, f );
 889                                                 fclose( f );
 890                                                 logbuffer[size] = '\0';
 891                                                 c->stats_in = logbuffer;
 892                                         }
 893                                 }
 894                         }
 895                 }
 896         }
 897         else
 898         {
 899                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for video\n" );
 900         }
 901
 902         return st;
 903 }
 904
 905 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
 906 {
 907         // Allocate a frame
 908         AVFrame *picture = avcodec_alloc_frame();
 909
 910         // Determine size of the
 911         int size = avpicture_get_size(pix_fmt, width, height);
 912
 913         // Allocate the picture buf
 914         uint8_t *picture_buf = av_malloc(size);
 915
 916         // If we have both, then fill the image
 917         if ( picture != NULL && picture_buf != NULL )
 918         {
 919                 // Fill the frame with the allocated buffer
 920                 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
 921         }
 922         else
 923         {
 924                 // Something failed - clean up what we can
 925                 av_free( picture );
 926                 av_free( picture_buf );
 927                 picture = NULL;
 928         }
 929
 930         return picture;
 931 }
 932
 933 static int open_video( mlt_properties properties, AVFormatContext *oc, AVStream *st, const char *codec_name )
 934 {
 935         // Get the codec
 936         AVCodecContext *video_enc = st->codec;
 937
 938         // find the video encoder
 939         AVCodec *codec;
 940         if ( codec_name )
 941                 codec = avcodec_find_encoder_by_name( codec_name );
 942         else
 943                 codec = avcodec_find_encoder( video_enc->codec_id );
 944
 945 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(122<<8)+0)
 946         // Process properties as AVOptions on the AVCodec
 947         if ( codec && codec->priv_class )
 948         {
 949                 char *vpre = mlt_properties_get( properties, "vpre" );
 950                 if ( !video_enc->priv_data && codec->priv_data_size )
 951                 {
 952                         video_enc->priv_data = av_mallocz( codec->priv_data_size );
 953                         *(const AVClass **) video_enc->priv_data = codec->priv_class;
 954 //                      av_opt_set_defaults( video_enc );
 955                 }
 956                 if ( vpre )
 957                 {
 958                         mlt_properties p = mlt_properties_load( vpre );
 959                         apply_properties( video_enc->priv_data, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 960                         mlt_properties_close( p );
 961                 }
 962                 apply_properties( video_enc->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 963         }
 964 #endif
 965
 966         if( codec && codec->pix_fmts )
 967         {
 968                 const enum PixelFormat *p = codec->pix_fmts;
 969                 for( ; *p!=-1; p++ )
 970                 {
 971                         if( *p == video_enc->pix_fmt )
 972                                 break;
 973                 }
 974                 if( *p == -1 )
 975                         video_enc->pix_fmt = codec->pix_fmts[ 0 ];
 976         }
 977
 978 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
 979         int result = codec && avcodec_open2( video_enc, codec, NULL ) >= 0;
 980 #else
 981         int result = codec && avcodec_open( video_enc, codec ) >= 0;
 982 #endif
 983
 984         return result;
 985 }
 986
 987 void close_video(AVFormatContext *oc, AVStream *st)
 988 {
 989         if ( st && st->codec )
 990         {
 991                 av_freep( &st->codec->stats_in );
 992                 avcodec_close(st->codec);
 993         }
 994 }
 995
 996 static inline long time_difference( struct timeval *time1 )
 997 {
 998         struct timeval time2;
 999         gettimeofday( &time2, NULL );
1000         return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
1001 }
1002
1003 static int mlt_write(void *h, uint8_t *buf, int size)
1004 {
1005         mlt_properties properties = (mlt_properties) h;
1006         mlt_events_fire( properties, "avformat-write", buf, size, NULL );
1007         return 0;
1008 }
1009
1010 static void write_transmitter( mlt_listener listener, mlt_properties owner, mlt_service service, void **args )
1011 {
1012         listener( owner, service, (uint8_t*) args[0], (int) args[1] );
1013 }
1014
1015
1016 /** The main thread - the argument is simply the consumer.
1017 */
1018
1019 static void *consumer_thread( void *arg )
1020 {
1021         // Map the argument to the object
1022         mlt_consumer consumer = arg;
1023
1024         // Get the properties
1025         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
1026
1027         // Get the terminate on pause property
1028         int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
1029         int terminated = 0;
1030
1031         // Determine if feed is slow (for realtime stuff)
1032         int real_time_output = mlt_properties_get_int( properties, "real_time" );
1033
1034         // Time structures
1035         struct timeval ante;
1036
1037         // Get the frame rate
1038         double fps = mlt_properties_get_double( properties, "fps" );
1039
1040         // Get width and height
1041         int width = mlt_properties_get_int( properties, "width" );
1042         int height = mlt_properties_get_int( properties, "height" );
1043         int img_width = width;
1044         int img_height = height;
1045
1046         // Get default audio properties
1047         mlt_audio_format aud_fmt = mlt_audio_s16;
1048         int channels = mlt_properties_get_int( properties, "channels" );
1049         int total_channels = channels;
1050         int frequency = mlt_properties_get_int( properties, "frequency" );
1051         int16_t *pcm = NULL;
1052         int samples = 0;
1053
1054         // AVFormat audio buffer and frame size
1055         int audio_outbuf_size = AUDIO_BUFFER_SIZE;
1056         uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
1057         int audio_input_frame_size = 0;
1058
1059         // AVFormat video buffer and frame count
1060         int frame_count = 0;
1061         int video_outbuf_size = VIDEO_BUFFER_SIZE;
1062         uint8_t *video_outbuf = av_malloc( video_outbuf_size );
1063
1064         // Used for the frame properties
1065         mlt_frame frame = NULL;
1066         mlt_properties frame_properties = NULL;
1067
1068         // Get the queues
1069         mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
1070         sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
1071
1072         // Need two av pictures for converting
1073         AVFrame *output = NULL;
1074         AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
1075
1076         // For receiving images from an mlt_frame
1077         uint8_t *image;
1078         mlt_image_format img_fmt = mlt_image_yuv422;
1079
1080         // For receiving audio samples back from the fifo
1081         int16_t *audio_buf_1 = av_malloc( AUDIO_ENCODE_BUFFER_SIZE );
1082         int16_t *audio_buf_2 = NULL;
1083         int count = 0;
1084
1085         // Allocate the context
1086 #if (LIBAVFORMAT_VERSION_INT >= ((52<<16)+(26<<8)+0))
1087         AVFormatContext *oc = avformat_alloc_context( );
1088 #else
1089         AVFormatContext *oc = av_alloc_format_context( );
1090 #endif
1091
1092         // Streams
1093         AVStream *video_st = NULL;
1094         AVStream *audio_st[ MAX_AUDIO_STREAMS ];
1095
1096         // Time stamps
1097         double audio_pts = 0;
1098         double video_pts = 0;
1099
1100         // Frames dispatched
1101         long int frames = 0;
1102         long int total_time = 0;
1103
1104         // Determine the format
1105         AVOutputFormat *fmt = NULL;
1106         const char *filename = mlt_properties_get( properties, "target" );
1107         char *format = mlt_properties_get( properties, "f" );
1108         char *vcodec = mlt_properties_get( properties, "vcodec" );
1109         char *acodec = mlt_properties_get( properties, "acodec" );
1110         AVCodec *audio_codec = NULL;
1111         AVCodec *video_codec = NULL;
1112
1113         // Used to store and override codec ids
1114         int audio_codec_id;
1115         int video_codec_id;
1116
1117         // Misc
1118         char key[27];
1119         mlt_properties frame_meta_properties = mlt_properties_new();
1120
1121         // Initialize audio_st
1122         int i = MAX_AUDIO_STREAMS;
1123         while ( i-- )
1124                 audio_st[i] = NULL;
1125
1126         // Check for user selected format first
1127         if ( format != NULL )
1128 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1129                 fmt = guess_format( format, NULL, NULL );
1130 #else
1131                 fmt = av_guess_format( format, NULL, NULL );
1132 #endif
1133
1134         // Otherwise check on the filename
1135         if ( fmt == NULL && filename != NULL )
1136 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1137                 fmt = guess_format( NULL, filename, NULL );
1138 #else
1139                 fmt = av_guess_format( NULL, filename, NULL );
1140 #endif
1141
1142         // Otherwise default to mpeg
1143         if ( fmt == NULL )
1144 #if LIBAVFORMAT_VERSION_INT < ((52<<16)+(45<<8)+0)
1145                 fmt = guess_format( "mpeg", NULL, NULL );
1146 #else
1147                 fmt = av_guess_format( "mpeg", NULL, NULL );
1148 #endif
1149
1150         // We need a filename - default to stdout?
1151         if ( filename == NULL || !strcmp( filename, "" ) )
1152                 filename = "pipe:";
1153
1154         // Get the codec ids selected
1155         audio_codec_id = fmt->audio_codec;
1156         video_codec_id = fmt->video_codec;
1157
1158         // Check for audio codec overides
1159         if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
1160                 audio_codec_id = CODEC_ID_NONE;
1161         else if ( acodec )
1162         {
1163                 audio_codec = avcodec_find_encoder_by_name( acodec );
1164                 if ( audio_codec )
1165                 {
1166                         audio_codec_id = audio_codec->id;
1167                         if ( audio_codec_id == CODEC_ID_AC3 && avcodec_find_encoder_by_name( "ac3_fixed" ) )
1168                         {
1169                                 mlt_properties_set( properties, "_acodec", "ac3_fixed" );
1170                                 acodec = mlt_properties_get( properties, "_acodec" );
1171                                 audio_codec = avcodec_find_encoder_by_name( acodec );
1172                         }
1173                 }
1174                 else
1175                 {
1176                         audio_codec_id = CODEC_ID_NONE;
1177                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "audio codec %s unrecognised - ignoring\n", acodec );
1178                 }
1179         }
1180         else
1181         {
1182                 audio_codec = avcodec_find_encoder( audio_codec_id );
1183         }
1184
1185         // Check for video codec overides
1186         if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
1187                 video_codec_id = CODEC_ID_NONE;
1188         else if ( vcodec )
1189         {
1190                 video_codec = avcodec_find_encoder_by_name( vcodec );
1191                 if ( video_codec )
1192                 {
1193                         video_codec_id = video_codec->id;
1194                 }
1195                 else
1196                 {
1197                         video_codec_id = CODEC_ID_NONE;
1198                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "video codec %s unrecognised - ignoring\n", vcodec );
1199                 }
1200         }
1201         else
1202         {
1203                 video_codec = avcodec_find_encoder( video_codec_id );
1204         }
1205
1206         // Write metadata
1207 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(31<<8)+0)
1208         for ( i = 0; i < mlt_properties_count( properties ); i++ )
1209         {
1210                 char *name = mlt_properties_get_name( properties, i );
1211                 if ( name && !strncmp( name, "meta.attr.", 10 ) )
1212                 {
1213                         char *key = strdup( name + 10 );
1214                         char *markup = strrchr( key, '.' );
1215                         if ( markup && !strcmp( markup, ".markup") )
1216                         {
1217                                 markup[0] = '\0';
1218                                 if ( !strstr( key, ".stream." ) )
1219 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(43<<8)+0)
1220 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
1221                                         av_dict_set( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1222 #else
1223                                         av_metadata_set2( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1224 #endif
1225 #else
1226                                         av_metadata_set( &oc->metadata, key, mlt_properties_get_value( properties, i ) );
1227 #endif
1228                         }
1229                         free( key );
1230                 }
1231         }
1232 #else
1233         char *tmp = NULL;
1234         int metavalue;
1235
1236         tmp = mlt_properties_get( properties, "meta.attr.title.markup");
1237         if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
1238
1239         tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
1240         if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
1241
1242         tmp = mlt_properties_get( properties, "meta.attr.author.markup");
1243         if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
1244
1245         tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
1246         if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
1247
1248         tmp = mlt_properties_get( properties, "meta.attr.album.markup");
1249         if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
1250
1251         metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
1252         if (metavalue != 0) oc->year = metavalue;
1253
1254         metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
1255         if (metavalue != 0) oc->track = metavalue;
1256 #endif
1257
1258         oc->oformat = fmt;
1259         snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
1260
1261         // Get a frame now, so we can set some AVOptions from properties.
1262         frame = mlt_consumer_rt_frame( consumer );
1263
1264         // Set the timecode from the MLT metadata if available.
1265     if ( frame )
1266     {
1267         const char *timecode = mlt_properties_get( MLT_FRAME_PROPERTIES(frame), "meta.attr.vitc.markup" );
1268         if ( timecode && strcmp( timecode, "" ) )
1269         {
1270             mlt_properties_set( properties, "timecode", timecode );
1271             if ( strchr( timecode, ';' ) )
1272                 mlt_properties_set_int( properties, "drop_frame_timecode", 1 );
1273         }
1274     }
1275
1276         // Add audio and video streams
1277         if ( video_codec_id != CODEC_ID_NONE )
1278                 video_st = add_video_stream( consumer, oc, video_codec );
1279         if ( audio_codec_id != CODEC_ID_NONE )
1280         {
1281                 int is_multi = 0;
1282
1283                 total_channels = 0;
1284                 // multitrack audio
1285                 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
1286                 {
1287                         sprintf( key, "channels.%d", i );
1288                         int j = mlt_properties_get_int( properties, key );
1289                         if ( j )
1290                         {
1291                                 is_multi = 1;
1292                                 total_channels += j;
1293                                 audio_st[i] = add_audio_stream( consumer, oc, audio_codec, j );
1294                         }
1295                 }
1296                 // single track
1297                 if ( !is_multi )
1298                 {
1299                         audio_st[0] = add_audio_stream( consumer, oc, audio_codec, channels );
1300                         total_channels = channels;
1301                 }
1302         }
1303         mlt_properties_set_int( properties, "channels", total_channels );
1304
1305         // Set the parameters (even though we have none...)
1306 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1307         if ( av_set_parameters(oc, NULL) >= 0 )
1308 #endif
1309         {
1310 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1311                 if ( mlt_properties_get( properties, "muxpreload" ) && ! mlt_properties_get( properties, "preload" ) )
1312                         mlt_properties_set_double( properties, "preload", mlt_properties_get_double( properties, "muxpreload" ) );
1313 #else
1314                 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
1315 #endif
1316                 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
1317
1318                 // Process properties as AVOptions
1319                 char *fpre = mlt_properties_get( properties, "fpre" );
1320                 if ( fpre )
1321                 {
1322                         mlt_properties p = mlt_properties_load( fpre );
1323                         apply_properties( oc, p, AV_OPT_FLAG_ENCODING_PARAM );
1324 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(110<<8)+0)
1325                         if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1326                                 apply_properties( oc->priv_data, p, AV_OPT_FLAG_ENCODING_PARAM );
1327 #endif
1328                         mlt_properties_close( p );
1329                 }
1330                 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
1331 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(110<<8)+0)
1332                 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1333                         apply_properties( oc->priv_data, properties, AV_OPT_FLAG_ENCODING_PARAM );
1334 #endif
1335
1336                 if ( video_st && !open_video( properties, oc, video_st, vcodec? vcodec : NULL ) )
1337                         video_st = NULL;
1338                 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1339                 {
1340                         audio_input_frame_size = open_audio( properties, oc, audio_st[i], audio_outbuf_size,
1341                                 acodec? acodec : NULL );
1342                         if ( !audio_input_frame_size )
1343                                 audio_st[i] = NULL;
1344                 }
1345
1346                 // Setup custom I/O if redirecting
1347                 if ( mlt_properties_get_int( properties, "redirect" ) )
1348                 {
1349                         int buffer_size = 32768;
1350                         unsigned char *buffer = av_malloc( buffer_size );
1351 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1352                         AVIOContext* io = avio_alloc_context( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1353 #else
1354                         ByteIOContext* io = av_alloc_put_byte( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1355 #endif
1356                         if ( buffer && io )
1357                         {
1358                                 oc->pb = io;
1359 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1360                                 oc->flags |= AVFMT_FLAG_CUSTOM_IO;
1361 #endif
1362                                 mlt_properties_set_data( properties, "avio_buffer", buffer, buffer_size, av_free, NULL );
1363                                 mlt_properties_set_data( properties, "avio_context", io, 0, av_free, NULL );
1364                                 mlt_events_register( properties, "avformat-write", (mlt_transmitter) write_transmitter );
1365                         }
1366                         else
1367                         {
1368                                 av_free( buffer );
1369                                 mlt_log_error( MLT_CONSUMER_SERVICE(consumer), "failed to setup output redirection\n" );
1370                         }
1371                 }
1372                 // Open the output file, if needed
1373                 else if ( !( fmt->flags & AVFMT_NOFILE ) )
1374                 {
1375 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1376                         if ( avio_open( &oc->pb, filename, AVIO_FLAG_WRITE ) < 0 )
1377 #else
1378                         if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
1379 #endif
1380                         {
1381                                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not open '%s'\n", filename );
1382                                 mlt_properties_set_int( properties, "running", 0 );
1383                         }
1384                 }
1385
1386                 // Write the stream header.
1387                 if ( mlt_properties_get_int( properties, "running" ) )
1388 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(2<<8)+0)
1389                         avformat_write_header( oc, NULL );
1390 #else
1391                         av_write_header( oc );
1392 #endif
1393         }
1394 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1395         else
1396         {
1397                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Invalid output format parameters\n" );
1398                 mlt_properties_set_int( properties, "running", 0 );
1399         }
1400 #endif
1401
1402         // Allocate picture
1403         if ( video_st )
1404                 output = alloc_picture( video_st->codec->pix_fmt, width, height );
1405
1406         // Last check - need at least one stream
1407         if ( !audio_st[0] && !video_st )
1408                 mlt_properties_set_int( properties, "running", 0 );
1409
1410         // Get the starting time (can ignore the times above)
1411         gettimeofday( &ante, NULL );
1412
1413         // Loop while running
1414         while( mlt_properties_get_int( properties, "running" ) &&
1415                ( !terminated || ( video_st && mlt_deque_count( queue ) ) ) )
1416         {
1417                 if ( !frame )
1418                         frame = mlt_consumer_rt_frame( consumer );
1419
1420                 // Check that we have a frame to work with
1421                 if ( frame != NULL )
1422                 {
1423                         // Increment frames dispatched
1424                         frames ++;
1425
1426                         // Default audio args
1427                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1428
1429                         // Check for the terminated condition
1430                         terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1431
1432                         // Get audio and append to the fifo
1433                         if ( !terminated && audio_st[0] )
1434                         {
1435                                 samples = mlt_sample_calculator( fps, frequency, count ++ );
1436                                 channels = total_channels;
1437                                 mlt_frame_get_audio( frame, (void**) &pcm, &aud_fmt, &frequency, &channels, &samples );
1438
1439                                 // Save the audio channel remap properties for later
1440                                 mlt_properties_pass( frame_meta_properties, frame_properties, "meta.map.audio." );
1441
1442                                 // Create the fifo if we don't have one
1443                                 if ( fifo == NULL )
1444                                 {
1445                                         fifo = sample_fifo_init( frequency, channels );
1446                                         mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1447                                 }
1448
1449                                 // Silence if not normal forward speed
1450                                 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1451                                         memset( pcm, 0, samples * channels * 2 );
1452
1453                                 // Append the samples
1454                                 sample_fifo_append( fifo, pcm, samples * channels );
1455                                 total_time += ( samples * 1000000 ) / frequency;
1456
1457                                 if ( !video_st )
1458                                         mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1459                         }
1460
1461                         // Encode the image
1462                         if ( !terminated && video_st )
1463                                 mlt_deque_push_back( queue, frame );
1464                         else
1465                                 mlt_frame_close( frame );
1466                         frame = NULL;
1467                 }
1468
1469                 // While we have stuff to process, process...
1470                 while ( 1 )
1471                 {
1472                         // Write interleaved audio and video frames
1473                         if ( !video_st || ( video_st && audio_st[0] && audio_pts < video_pts ) )
1474                         {
1475                                 // Write audio
1476                                 if ( ( video_st && terminated ) || ( channels * audio_input_frame_size ) < sample_fifo_used( fifo ) )
1477                                 {
1478                                         int j = 0; // channel offset into interleaved source buffer
1479                                         int n = FFMIN( FFMIN( channels * audio_input_frame_size, sample_fifo_used( fifo ) ), AUDIO_ENCODE_BUFFER_SIZE );
1480
1481                                         // Get the audio samples
1482                                         if ( n > 0 )
1483                                         {
1484                                                 sample_fifo_fetch( fifo, audio_buf_1, n );
1485                                         }
1486                                         else if ( audio_codec_id == CODEC_ID_VORBIS && terminated )
1487                                         {
1488                                                 // This prevents an infinite loop when some versions of vorbis do not
1489                                                 // increment pts when encoding silence.
1490                                                 audio_pts = video_pts;
1491                                                 break;
1492                                         }
1493                                         else
1494                                         {
1495                                                 memset( audio_buf_1, 0, AUDIO_ENCODE_BUFFER_SIZE );
1496                                         }
1497                                         samples = n / channels;
1498
1499                                         // For each output stream
1500                                         for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i] && j < total_channels; i++ )
1501                                         {
1502                                                 AVStream *stream = audio_st[i];
1503                                                 AVCodecContext *codec = stream->codec;
1504                                                 AVPacket pkt;
1505
1506                                                 av_init_packet( &pkt );
1507
1508                                                 // Optimized for single track and no channel remap
1509                                                 if ( !audio_st[1] && !mlt_properties_count( frame_meta_properties ) )
1510                                                 {
1511                                                         pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, audio_buf_1 );
1512                                                 }
1513                                                 else
1514                                                 {
1515                                                         // Extract the audio channels according to channel mapping
1516                                                         int dest_offset = 0; // channel offset into interleaved dest buffer
1517
1518                                                         // Get the number of channels for this stream
1519                                                         sprintf( key, "channels.%d", i );
1520                                                         int current_channels = mlt_properties_get_int( properties, key );
1521
1522                                                         // Clear the destination audio buffer.
1523                                                         if ( !audio_buf_2 )
1524                                                                 audio_buf_2 = av_mallocz( AUDIO_ENCODE_BUFFER_SIZE );
1525                                                         else
1526                                                                 memset( audio_buf_2, 0, AUDIO_ENCODE_BUFFER_SIZE );
1527
1528                                                         // For each output channel
1529                                                         while ( dest_offset < current_channels && j < total_channels )
1530                                                         {
1531                                                                 int map_start = -1, map_channels = 0;
1532                                                                 int source_offset = 0;
1533                                                                 int k;
1534
1535                                                                 // Look for a mapping that starts at j
1536                                                                 for ( k = 0; k < (MAX_AUDIO_STREAMS * 2) && map_start != j; k++ )
1537                                                                 {
1538                                                                         sprintf( key, "%d.channels", k );
1539                                                                         map_channels = mlt_properties_get_int( frame_meta_properties, key );
1540                                                                         sprintf( key, "%d.start", k );
1541                                                                         if ( mlt_properties_get( frame_meta_properties, key ) )
1542                                                                                 map_start = mlt_properties_get_int( frame_meta_properties, key );
1543                                                                         if ( map_start != j )
1544                                                                                 source_offset += map_channels;
1545                                                                 }
1546
1547                                                                 // If no mapping
1548                                                                 if ( map_start != j )
1549                                                                 {
1550                                                                         map_channels = current_channels;
1551                                                                         source_offset = j;
1552                                                                 }
1553
1554                                                                 // Copy samples if source offset valid
1555                                                                 if ( source_offset < channels )
1556                                                                 {
1557                                                                         // Interleave the audio buffer with the # channels for this stream/mapping.
1558                                                                         for ( k = 0; k < map_channels; k++, j++, source_offset++, dest_offset++ )
1559                                                                         {
1560                                                                                 int16_t *src = audio_buf_1 + source_offset;
1561                                                                                 int16_t *dest = audio_buf_2 + dest_offset;
1562                                                                                 int s = samples + 1;
1563
1564                                                                                 while ( --s ) {
1565                                                                                         *dest = *src;
1566                                                                                         dest += current_channels;
1567                                                                                         src += channels;
1568                                                                                 }
1569                                                                         }
1570                                                                 }
1571                                                                 // Otherwise silence
1572                                                                 else
1573                                                                 {
1574                                                                         j += current_channels;
1575                                                                         dest_offset += current_channels;
1576                                                                 }
1577                                                         }
1578                                                         pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, audio_buf_2 );
1579                                                 }
1580
1581                                                 // Write the compressed frame in the media file
1582                                                 if ( codec->coded_frame && codec->coded_frame->pts != AV_NOPTS_VALUE )
1583                                                 {
1584                                                         pkt.pts = av_rescale_q( codec->coded_frame->pts, codec->time_base, stream->time_base );
1585                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio stream %d pkt pts %"PRId64" frame pts %"PRId64,
1586                                                                 stream->index, pkt.pts, codec->coded_frame->pts );
1587                                                 }
1588                                                 pkt.flags |= PKT_FLAG_KEY;
1589                                                 pkt.stream_index = stream->index;
1590                                                 pkt.data = audio_outbuf;
1591
1592                                                 if ( pkt.size > 0 )
1593                                                 {
1594                                                         if ( av_interleaved_write_frame( oc, &pkt ) )
1595                                                         {
1596                                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing audio frame\n" );
1597                                                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1598                                                                 goto on_fatal_error;
1599                                                         }
1600                                                 }
1601
1602                                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", codec->frame_size );
1603                                                 if ( i == 0 )
1604                                                 {
1605                                                         audio_pts = (double)stream->pts.val * av_q2d( stream->time_base );
1606                                                 }
1607                                         }
1608                                 }
1609                                 else
1610                                 {
1611                                         break;
1612                                 }
1613                         }
1614                         else if ( video_st )
1615                         {
1616                                 // Write video
1617                                 if ( mlt_deque_count( queue ) )
1618                                 {
1619                                         int out_size, ret = 0;
1620                                         AVCodecContext *c;
1621
1622                                         frame = mlt_deque_pop_front( queue );
1623                                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1624
1625                                         c = video_st->codec;
1626
1627                                         if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1628                                         {
1629                                                 int i = 0;
1630                                                 uint8_t *p;
1631                                                 uint8_t *q;
1632
1633                                                 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1634
1635                                                 q = image;
1636
1637                                                 // Convert the mlt frame to an AVPicture
1638                                                 for ( i = 0; i < height; i ++ )
1639                                                 {
1640                                                         p = input->data[ 0 ] + i * input->linesize[ 0 ];
1641                                                         memcpy( p, q, width * 2 );
1642                                                         q += width * 2;
1643                                                 }
1644
1645                                                 // Do the colour space conversion
1646 #ifdef SWSCALE
1647                                                 int flags = SWS_BILINEAR;
1648 #ifdef USE_MMX
1649                                                 flags |= SWS_CPU_CAPS_MMX;
1650 #endif
1651 #ifdef USE_SSE
1652                                                 flags |= SWS_CPU_CAPS_MMX2;
1653 #endif
1654                                                 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1655                                                         width, height, video_st->codec->pix_fmt, flags, NULL, NULL, NULL);
1656                                                 sws_scale( context, (const uint8_t* const*) input->data, input->linesize, 0, height,
1657                                                         output->data, output->linesize);
1658                                                 sws_freeContext( context );
1659 #else
1660                                                 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1661 #endif
1662
1663                                                 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1664
1665                                                 // Apply the alpha if applicable
1666                                                 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1667                                                 {
1668                                                         uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1669                                                         register int n;
1670
1671                                                         for ( i = 0; i < height; i ++ )
1672                                                         {
1673                                                                 n = ( width + 7 ) / 8;
1674                                                                 p = output->data[ 0 ] + i * output->linesize[ 0 ] + 3;
1675
1676                                                                 switch( width % 8 )
1677                                                                 {
1678                                                                         case 0: do { *p = *alpha++; p += 4;
1679                                                                         case 7:          *p = *alpha++; p += 4;
1680                                                                         case 6:          *p = *alpha++; p += 4;
1681                                                                         case 5:          *p = *alpha++; p += 4;
1682                                                                         case 4:          *p = *alpha++; p += 4;
1683                                                                         case 3:          *p = *alpha++; p += 4;
1684                                                                         case 2:          *p = *alpha++; p += 4;
1685                                                                         case 1:          *p = *alpha++; p += 4;
1686                                                                                         }
1687                                                                                         while( --n );
1688                                                                 }
1689                                                         }
1690                                                 }
1691                                         }
1692
1693                                         if (oc->oformat->flags & AVFMT_RAWPICTURE)
1694                                         {
1695                                                 // raw video case. The API will change slightly in the near future for that
1696                                                 AVPacket pkt;
1697                                                 av_init_packet(&pkt);
1698
1699                                                 pkt.flags |= PKT_FLAG_KEY;
1700                                                 pkt.stream_index= video_st->index;
1701                                                 pkt.data= (uint8_t *)output;
1702                                                 pkt.size= sizeof(AVPicture);
1703
1704                                                 ret = av_write_frame(oc, &pkt);
1705                                                 video_pts += c->frame_size;
1706                                         }
1707                                         else
1708                                         {
1709                                                 // Set the quality
1710                                                 output->quality = c->global_quality;
1711
1712                                                 // Set frame interlace hints
1713                                                 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1714                                                 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1715                                                 output->pts = frame_count;
1716
1717                                                 // Encode the image
1718                                                 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1719
1720                                                 // If zero size, it means the image was buffered
1721                                                 if ( out_size > 0 )
1722                                                 {
1723                                                         AVPacket pkt;
1724                                                         av_init_packet( &pkt );
1725
1726                                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1727                                                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1728                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pkt pts %"PRId64" frame pts %"PRId64, pkt.pts, c->coded_frame->pts );
1729                                                         if( c->coded_frame && c->coded_frame->key_frame )
1730                                                                 pkt.flags |= PKT_FLAG_KEY;
1731                                                         pkt.stream_index= video_st->index;
1732                                                         pkt.data= video_outbuf;
1733                                                         pkt.size= out_size;
1734
1735                                                         // write the compressed frame in the media file
1736                                                         ret = av_interleaved_write_frame(oc, &pkt);
1737                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", c->frame_size );
1738                                                         video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1739
1740                                                         // Dual pass logging
1741                                                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1742                                                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1743                                                 }
1744                                                 else if ( out_size < 0 )
1745                                                 {
1746                                                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with video encode %d\n", frame_count );
1747                                                 }
1748                                         }
1749                                         frame_count++;
1750                                         if ( ret )
1751                                         {
1752                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing video frame\n" );
1753                                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1754                                                 goto on_fatal_error;
1755                                         }
1756                                         mlt_frame_close( frame );
1757                                         frame = NULL;
1758                                 }
1759                                 else
1760                                 {
1761                                         break;
1762                                 }
1763                         }
1764                         if ( audio_st[0] )
1765                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio pts %"PRId64" (%f) ", audio_st[0]->pts.val, audio_pts );
1766                         if ( video_st )
1767                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pts %"PRId64" (%f) ", video_st->pts.val, video_pts );
1768                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "\n" );
1769                 }
1770
1771                 if ( real_time_output == 1 && frames % 2 == 0 )
1772                 {
1773                         long passed = time_difference( &ante );
1774                         if ( fifo != NULL )
1775                         {
1776                                 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1777                                 passed -= pending;
1778                         }
1779                         if ( passed < total_time )
1780                         {
1781                                 long total = ( total_time - passed );
1782                                 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1783                                 nanosleep( &t, NULL );
1784                         }
1785                 }
1786         }
1787
1788         // Flush the encoder buffers
1789         if ( real_time_output <= 0 )
1790         {
1791                 // Flush audio fifo
1792                 // TODO: flush all audio streams
1793                 if ( audio_st[0] && audio_st[0]->codec->frame_size > 1 ) for (;;)
1794                 {
1795                         AVCodecContext *c = audio_st[0]->codec;
1796                         AVPacket pkt;
1797                         av_init_packet( &pkt );
1798                         pkt.size = 0;
1799
1800                         if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1801                                 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1802                         {
1803                                 sample_fifo_fetch( fifo, audio_buf_1, channels * audio_input_frame_size );
1804                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, audio_buf_1 );
1805                         }
1806                         if ( pkt.size <= 0 )
1807                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1808                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
1809                         if ( pkt.size <= 0 )
1810                                 break;
1811
1812                         // Write the compressed frame in the media file
1813                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1814                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st[0]->time_base );
1815                         pkt.flags |= PKT_FLAG_KEY;
1816                         pkt.stream_index = audio_st[0]->index;
1817                         pkt.data = audio_outbuf;
1818                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1819                         {
1820                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing flushed audio frame\n" );
1821                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1822                                 goto on_fatal_error;
1823                         }
1824                 }
1825
1826                 // Flush video
1827                 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1828                 {
1829                         AVCodecContext *c = video_st->codec;
1830                         AVPacket pkt;
1831                         av_init_packet( &pkt );
1832
1833                         // Encode the image
1834                         pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1835                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing video size %d\n", pkt.size );
1836                         if ( pkt.size <= 0 )
1837                                 break;
1838
1839                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1840                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1841                         if( c->coded_frame && c->coded_frame->key_frame )
1842                                 pkt.flags |= PKT_FLAG_KEY;
1843                         pkt.stream_index = video_st->index;
1844                         pkt.data = video_outbuf;
1845
1846                         // write the compressed frame in the media file
1847                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1848                         {
1849                                 mlt_log_fatal( MLT_CONSUMER_SERVICE(consumer), "error writing flushed video frame\n" );
1850                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1851                                 goto on_fatal_error;
1852                         }
1853                         // Dual pass logging
1854                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1855                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1856                 }
1857         }
1858
1859 on_fatal_error:
1860
1861         // Write the trailer, if any
1862         av_write_trailer( oc );
1863
1864         // close each codec
1865         if ( video_st )
1866                 close_video(oc, video_st);
1867         for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1868                 close_audio( oc, audio_st[i] );
1869
1870         // Free the streams
1871         for ( i = 0; i < oc->nb_streams; i++ )
1872                 av_freep( &oc->streams[i] );
1873
1874         // Close the output file
1875         if ( !( fmt->flags & AVFMT_NOFILE ) )
1876         {
1877 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1878                 if ( !mlt_properties_get_int( properties, "redirect" ) )
1879                         avio_close( oc->pb );
1880 #elif LIBAVFORMAT_VERSION_MAJOR >= 52
1881                 url_fclose( oc->pb );
1882 #else
1883                 url_fclose( &oc->pb );
1884 #endif
1885         }
1886
1887         // Clean up input and output frames
1888         if ( output )
1889                 av_free( output->data[0] );
1890         av_free( output );
1891         av_free( input->data[0] );
1892         av_free( input );
1893         av_free( video_outbuf );
1894         av_free( audio_buf_1 );
1895         av_free( audio_buf_2 );
1896
1897         // Free the stream
1898         av_free( oc );
1899
1900         // Just in case we terminated on pause
1901         mlt_properties_set_int( properties, "running", 0 );
1902
1903         mlt_consumer_stopped( consumer );
1904         mlt_properties_close( frame_meta_properties );
1905
1906         if ( mlt_properties_get_int( properties, "pass" ) > 1 )
1907         {
1908                 // Remove the dual pass log file
1909                 if ( mlt_properties_get( properties, "_logfilename" ) )
1910                         remove( mlt_properties_get( properties, "_logfilename" ) );
1911
1912                 // Remove the x264 dual pass logs
1913                 char *cwd = getcwd( NULL, 0 );
1914                 const char *file = "x264_2pass.log";
1915                 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1916                 sprintf( full, "%s/%s", cwd, file );
1917                 remove( full );
1918                 free( full );
1919                 file = "x264_2pass.log.temp";
1920                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1921                 sprintf( full, "%s/%s", cwd, file );
1922                 remove( full );
1923                 free( full );
1924                 file = "x264_2pass.log.mbtree";
1925                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1926                 sprintf( full, "%s/%s", cwd, file );
1927                 remove( full );
1928                 free( full );
1929                 free( cwd );
1930                 remove( "x264_2pass.log.temp" );
1931         }
1932
1933         while ( ( frame = mlt_deque_pop_back( queue ) ) )
1934                 mlt_frame_close( frame );
1935
1936         return NULL;
1937 }
1938
1939 /** Close the consumer.
1940 */
1941
1942 static void consumer_close( mlt_consumer consumer )
1943 {
1944         // Stop the consumer
1945         mlt_consumer_stop( consumer );
1946
1947         // Close the parent
1948         mlt_consumer_close( consumer );
1949
1950         // Free the memory
1951         free( consumer );
1952 }