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 #include <libswscale/swscale.h>
  43 #include <libavutil/pixdesc.h>
  44 #include <libavutil/mathematics.h>
  45 #include <libavutil/samplefmt.h>
  46
  47 #if LIBAVCODEC_VERSION_MAJOR >= 53
  48 #include <libavutil/opt.h>
  49 #define CODEC_TYPE_VIDEO      AVMEDIA_TYPE_VIDEO
  50 #define CODEC_TYPE_AUDIO      AVMEDIA_TYPE_AUDIO
  51 #define PKT_FLAG_KEY AV_PKT_FLAG_KEY
  52 #else
  53 #include <libavcodec/opt.h>
  54 #endif
  55
  56 #if LIBAVCODEC_VERSION_MAJOR < 55
  57 #define AV_CODEC_ID_PCM_S16LE CODEC_ID_PCM_S16LE
  58 #define AV_CODEC_ID_PCM_S16BE CODEC_ID_PCM_S16BE
  59 #define AV_CODEC_ID_PCM_U16LE CODEC_ID_PCM_U16LE
  60 #define AV_CODEC_ID_PCM_U16BE CODEC_ID_PCM_U16BE
  61 #define AV_CODEC_ID_H264      CODEC_ID_H264
  62 #define AV_CODEC_ID_NONE      CODEC_ID_NONE
  63 #define AV_CODEC_ID_AC3       CODEC_ID_AC3
  64 #define AV_CODEC_ID_VORBIS    CODEC_ID_VORBIS
  65 #define AV_CODEC_ID_RAWVIDEO  CODEC_ID_RAWVIDEO
  66 #define AV_CODEC_ID_MJPEG     CODEC_ID_MJPEG
  67 #endif
  68
  69 #define MAX_AUDIO_STREAMS (8)
  70 #define AUDIO_ENCODE_BUFFER_SIZE (48000 * 2 * MAX_AUDIO_STREAMS)
  71 #define AUDIO_BUFFER_SIZE (1024 * 42)
  72 #define VIDEO_BUFFER_SIZE (2048 * 1024)
  73
  74 //
  75 // This structure should be extended and made globally available in mlt
  76 //
  77
  78 typedef struct
  79 {
  80         uint8_t *buffer;
  81         int size;
  82         int used;
  83         double time;
  84         int frequency;
  85         int channels;
  86 }
  87 *sample_fifo, sample_fifo_s;
  88
  89 sample_fifo sample_fifo_init( int frequency, int channels )
  90 {
  91         sample_fifo fifo = calloc( 1, sizeof( sample_fifo_s ) );
  92         fifo->frequency = frequency;
  93         fifo->channels = channels;
  94         return fifo;
  95 }
  96
  97 // count is the number of samples multiplied by the number of bytes per sample
  98 void sample_fifo_append( sample_fifo fifo, uint8_t *samples, int count )
  99 {
 100         if ( ( fifo->size - fifo->used ) < count )
 101         {
 102                 fifo->size += count * 5;
 103                 fifo->buffer = realloc( fifo->buffer, fifo->size );
 104         }
 105
 106         memcpy( &fifo->buffer[ fifo->used ], samples, count );
 107         fifo->used += count;
 108 }
 109
 110 int sample_fifo_used( sample_fifo fifo )
 111 {
 112         return fifo->used;
 113 }
 114
 115 int sample_fifo_fetch( sample_fifo fifo, uint8_t *samples, int count )
 116 {
 117         if ( count > fifo->used )
 118                 count = fifo->used;
 119
 120         memcpy( samples, fifo->buffer, count );
 121         fifo->used -= count;
 122         memmove( fifo->buffer, &fifo->buffer[ count ], fifo->used );
 123
 124         fifo->time += ( double )count / fifo->channels / fifo->frequency;
 125
 126         return count;
 127 }
 128
 129 void sample_fifo_close( sample_fifo fifo )
 130 {
 131         free( fifo->buffer );
 132         free( fifo );
 133 }
 134
 135 // Forward references.
 136 static void property_changed( mlt_properties owner, mlt_consumer self, char *name );
 137 static int consumer_start( mlt_consumer consumer );
 138 static int consumer_stop( mlt_consumer consumer );
 139 static int consumer_is_stopped( mlt_consumer consumer );
 140 static void *consumer_thread( void *arg );
 141 static void consumer_close( mlt_consumer consumer );
 142
 143 /** Initialise the consumer.
 144 */
 145
 146 mlt_consumer consumer_avformat_init( mlt_profile profile, char *arg )
 147 {
 148         // Allocate the consumer
 149         mlt_consumer consumer = mlt_consumer_new( profile );
 150
 151         // If memory allocated and initialises without error
 152         if ( consumer != NULL )
 153         {
 154                 // Get properties from the consumer
 155                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 156
 157                 // Assign close callback
 158                 consumer->close = consumer_close;
 159
 160                 // Interpret the argument
 161                 if ( arg != NULL )
 162                         mlt_properties_set( properties, "target", arg );
 163
 164                 // sample and frame queue
 165                 mlt_properties_set_data( properties, "frame_queue", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
 166
 167                 // Audio options not fully handled by AVOptions
 168 #define QSCALE_NONE (-99999)
 169                 mlt_properties_set_int( properties, "aq", QSCALE_NONE );
 170
 171                 // Video options not fully handled by AVOptions
 172                 mlt_properties_set_int( properties, "dc", 8 );
 173
 174                 // Muxer options not fully handled by AVOptions
 175                 mlt_properties_set_double( properties, "muxdelay", 0.7 );
 176                 mlt_properties_set_double( properties, "muxpreload", 0.5 );
 177
 178                 // Ensure termination at end of the stream
 179                 mlt_properties_set_int( properties, "terminate_on_pause", 1 );
 180
 181                 // Default to separate processing threads for producer and consumer with no frame dropping!
 182                 mlt_properties_set_int( properties, "real_time", -1 );
 183                 mlt_properties_set_int( properties, "prefill", 1 );
 184
 185                 // Set up start/stop/terminated callbacks
 186                 consumer->start = consumer_start;
 187                 consumer->stop = consumer_stop;
 188                 consumer->is_stopped = consumer_is_stopped;
 189
 190                 mlt_events_register( properties, "consumer-fatal-error", NULL );
 191                 mlt_event event = mlt_events_listen( properties, consumer, "property-changed", ( mlt_listener )property_changed );
 192                 mlt_properties_set_data( properties, "property-changed event", event, 0, NULL, NULL );
 193         }
 194
 195         // Return consumer
 196         return consumer;
 197 }
 198
 199 static void property_changed( mlt_properties owner, mlt_consumer self, char *name )
 200 {
 201         mlt_properties properties = MLT_CONSUMER_PROPERTIES( self );
 202
 203         if ( !strcmp( name, "s" ) )
 204         {
 205                 // Obtain the size property
 206                 char *size = mlt_properties_get( properties, "s" );
 207                 int width = mlt_properties_get_int( properties, "width" );
 208                 int height = mlt_properties_get_int( properties, "height" );
 209                 int tw, th;
 210
 211                 if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
 212                 {
 213                         width = tw;
 214                         height = th;
 215                 }
 216                 else
 217                 {
 218                         mlt_log_warning( MLT_CONSUMER_SERVICE(self), "Invalid size property %s - ignoring.\n", size );
 219                 }
 220
 221                 // Now ensure we honour the multiple of two requested by libavformat
 222                 width = ( width / 2 ) * 2;
 223                 height = ( height / 2 ) * 2;
 224                 mlt_properties_set_int( properties, "width", width );
 225                 mlt_properties_set_int( properties, "height", height );
 226         }
 227         // "-aspect" on ffmpeg command line is display aspect ratio
 228         else if ( !strcmp( name, "aspect" ) )
 229         {
 230                 double ar = mlt_properties_get_double( properties, "aspect" );
 231                 AVRational rational = av_d2q( ar, 255 );
 232                 int width = mlt_properties_get_int( properties, "width" );
 233                 int height = mlt_properties_get_int( properties, "height" );
 234
 235                 // Update the profile and properties as well since this is an alias
 236                 // for mlt properties that correspond to profile settings
 237                 mlt_properties_set_int( properties, "display_aspect_num", rational.num );
 238                 mlt_properties_set_int( properties, "display_aspect_den", rational.den );
 239
 240                 // Now compute the sample aspect ratio
 241                 rational = av_d2q( ar * height / FFMAX(width, 1), 255 );
 242
 243                 // Update the profile and properties as well since this is an alias
 244                 // for mlt properties that correspond to profile settings
 245                 mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
 246                 mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
 247         }
 248         // Handle the ffmpeg command line "-r" property for frame rate
 249         else if ( !strcmp( name, "r" ) )
 250         {
 251                 double frame_rate = mlt_properties_get_double( properties, "r" );
 252                 AVRational rational = av_d2q( frame_rate, 255 );
 253                 mlt_properties_set_int( properties, "frame_rate_num", rational.num );
 254                 mlt_properties_set_int( properties, "frame_rate_den", rational.den );
 255         }
 256 }
 257
 258 /** Start the consumer.
 259 */
 260
 261 static int consumer_start( mlt_consumer consumer )
 262 {
 263         // Get the properties
 264         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 265         int error = 0;
 266
 267         // Report information about available muxers and codecs as YAML Tiny
 268         char *s = mlt_properties_get( properties, "f" );
 269         if ( s && strcmp( s, "list" ) == 0 )
 270         {
 271                 mlt_properties doc = mlt_properties_new();
 272                 mlt_properties formats = mlt_properties_new();
 273                 char key[20];
 274                 AVOutputFormat *format = NULL;
 275
 276                 mlt_properties_set_data( properties, "f", formats, 0, (mlt_destructor) mlt_properties_close, NULL );
 277                 mlt_properties_set_data( doc, "formats", formats, 0, NULL, NULL );
 278                 while ( ( format = av_oformat_next( format ) ) )
 279                 {
 280                         snprintf( key, sizeof(key), "%d", mlt_properties_count( formats ) );
 281                         mlt_properties_set( formats, key, format->name );
 282                 }
 283                 s = mlt_properties_serialise_yaml( doc );
 284                 fprintf( stdout, "%s", s );
 285                 free( s );
 286                 mlt_properties_close( doc );
 287                 error = 1;
 288         }
 289         s = mlt_properties_get( properties, "acodec" );
 290         if ( s && strcmp( s, "list" ) == 0 )
 291         {
 292                 mlt_properties doc = mlt_properties_new();
 293                 mlt_properties codecs = mlt_properties_new();
 294                 char key[20];
 295                 AVCodec *codec = NULL;
 296
 297                 mlt_properties_set_data( properties, "acodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
 298                 mlt_properties_set_data( doc, "audio_codecs", codecs, 0, NULL, NULL );
 299                 while ( ( codec = av_codec_next( codec ) ) )
 300 #if (defined(FFUDIV) && LIBAVCODEC_VERSION_INT >= ((54<<16)+(56<<8)+100)) || (LIBAVCODEC_VERSION_INT >= ((54<<16)+(27<<8)+0))
 301                         if ( codec->encode2 && codec->type == CODEC_TYPE_AUDIO )
 302 #elif LIBAVCODEC_VERSION_INT >= ((54<<16)+(0<<8)+0)
 303                         if ( ( codec->encode || codec->encode2 ) && codec->type == CODEC_TYPE_AUDIO )
 304 #else
 305                         if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
 306 #endif
 307                         {
 308                                 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
 309                                 mlt_properties_set( codecs, key, codec->name );
 310                         }
 311                 s = mlt_properties_serialise_yaml( doc );
 312                 fprintf( stdout, "%s", s );
 313                 free( s );
 314                 mlt_properties_close( doc );
 315                 error = 1;
 316         }
 317         s = mlt_properties_get( properties, "vcodec" );
 318         if ( s && strcmp( s, "list" ) == 0 )
 319         {
 320                 mlt_properties doc = mlt_properties_new();
 321                 mlt_properties codecs = mlt_properties_new();
 322                 char key[20];
 323                 AVCodec *codec = NULL;
 324
 325                 mlt_properties_set_data( properties, "vcodec", codecs, 0, (mlt_destructor) mlt_properties_close, NULL );
 326                 mlt_properties_set_data( doc, "video_codecs", codecs, 0, NULL, NULL );
 327                 while ( ( codec = av_codec_next( codec ) ) )
 328 #if (defined(FFUDIV) && LIBAVCODEC_VERSION_INT >= ((54<<16)+(56<<8)+100)) || (LIBAVCODEC_VERSION_INT >= ((54<<16)+(27<<8)+0))
 329                         if ( codec->encode2 && codec->type == CODEC_TYPE_VIDEO )
 330 #elif LIBAVCODEC_VERSION_INT >= ((54<<16)+(0<<8)+0)
 331                         if ( (codec->encode || codec->encode2) && codec->type == CODEC_TYPE_VIDEO )
 332 #else
 333                         if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
 334 #endif
 335                         {
 336                                 snprintf( key, sizeof(key), "%d", mlt_properties_count( codecs ) );
 337                                 mlt_properties_set( codecs, key, codec->name );
 338                         }
 339                 s = mlt_properties_serialise_yaml( doc );
 340                 fprintf( stdout, "%s", s );
 341                 free( s );
 342                 mlt_properties_close( doc );
 343                 error = 1;
 344         }
 345
 346         // Check that we're not already running
 347         if ( !error && !mlt_properties_get_int( properties, "running" ) )
 348         {
 349                 // Allocate a thread
 350                 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
 351
 352                 mlt_event_block( mlt_properties_get_data( properties, "property-changed event", NULL ) );
 353
 354                 // Apply AVOptions that are synonyms for standard mlt_consumer options
 355                 if ( mlt_properties_get( properties, "ac" ) )
 356                         mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
 357                 if ( mlt_properties_get( properties, "ar" ) )
 358                         mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
 359
 360                 // Assign the thread to properties
 361                 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
 362
 363                 // Create the thread
 364                 pthread_create( thread, NULL, consumer_thread, consumer );
 365
 366                 // Set the running state
 367                 mlt_properties_set_int( properties, "running", 1 );
 368         }
 369         return error;
 370 }
 371
 372 /** Stop the consumer.
 373 */
 374
 375 static int consumer_stop( mlt_consumer consumer )
 376 {
 377         // Get the properties
 378         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 379         pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
 380
 381         // Check that we're running
 382         if ( thread )
 383         {
 384                 // Stop the thread
 385                 mlt_properties_set_int( properties, "running", 0 );
 386
 387                 // Wait for termination
 388                 pthread_join( *thread, NULL );
 389
 390                 mlt_properties_set_data( properties, "thread", NULL, 0, NULL, NULL );
 391                 mlt_event_unblock( mlt_properties_get_data( properties, "property-changed event", NULL ) );
 392         }
 393
 394         return 0;
 395 }
 396
 397 /** Determine if the consumer is stopped.
 398 */
 399
 400 static int consumer_is_stopped( mlt_consumer consumer )
 401 {
 402         // Get the properties
 403         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 404         return !mlt_properties_get_int( properties, "running" );
 405 }
 406
 407 /** Process properties as AVOptions and apply to AV context obj
 408 */
 409
 410 static void apply_properties( void *obj, mlt_properties properties, int flags )
 411 {
 412         int i;
 413         int count = mlt_properties_count( properties );
 414 #if LIBAVUTIL_VERSION_INT < ((51<<16)+(12<<8)+0)
 415         int alloc = 1;
 416 #endif
 417
 418         for ( i = 0; i < count; i++ )
 419         {
 420                 const char *opt_name = mlt_properties_get_name( properties, i );
 421 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(10<<8)+0)
 422                 const AVOption *opt = av_opt_find( obj, opt_name, NULL, flags, flags );
 423 #else
 424                 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
 425 #endif
 426
 427                 // If option not found, see if it was prefixed with a or v (-vb)
 428                 if ( !opt && (
 429                         ( opt_name[0] == 'v' && ( flags & AV_OPT_FLAG_VIDEO_PARAM ) ) ||
 430                         ( opt_name[0] == 'a' && ( flags & AV_OPT_FLAG_AUDIO_PARAM ) ) ) )
 431 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(10<<8)+0)
 432                         opt = av_opt_find( obj, ++opt_name, NULL, flags, flags );
 433 #else
 434                         opt = av_find_opt( obj, ++opt_name, NULL, flags, flags );
 435 #endif
 436                 // Apply option if found
 437                 if ( opt )
 438 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(12<<8)+0)
 439                         av_opt_set( obj, opt_name, mlt_properties_get_value( properties, i), 0 );
 440 #else
 441                         av_set_string3( obj, opt_name, mlt_properties_get_value( properties, i), alloc, NULL );
 442 #endif
 443         }
 444 }
 445
 446 static enum PixelFormat pick_pix_fmt( mlt_image_format img_fmt )
 447 {
 448         switch ( img_fmt )
 449         {
 450         case mlt_image_rgb24:
 451                 return PIX_FMT_RGB24;
 452         case mlt_image_rgb24a:
 453                 return PIX_FMT_RGBA;
 454         case mlt_image_yuv420p:
 455                 return PIX_FMT_YUV420P;
 456         default:
 457                 return PIX_FMT_YUYV422;
 458         }
 459 }
 460
 461 static int get_mlt_audio_format( int av_sample_fmt )
 462 {
 463         switch ( av_sample_fmt )
 464         {
 465         case AV_SAMPLE_FMT_U8:
 466                 return mlt_audio_u8;
 467         case AV_SAMPLE_FMT_S32:
 468                 return mlt_audio_s32le;
 469         case AV_SAMPLE_FMT_FLT:
 470                 return mlt_audio_f32le;
 471 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
 472         case AV_SAMPLE_FMT_U8P:
 473                 return mlt_audio_u8;
 474         case AV_SAMPLE_FMT_S32P:
 475                 return mlt_audio_s32le;
 476         case AV_SAMPLE_FMT_FLTP:
 477                 return mlt_audio_f32le;
 478 #endif
 479         default:
 480                 return mlt_audio_s16;
 481         }
 482 }
 483
 484 static int pick_sample_fmt( mlt_properties properties, AVCodec *codec )
 485 {
 486         int sample_fmt = AV_SAMPLE_FMT_S16;
 487         const char *format = mlt_properties_get( properties, "mlt_audio_format" );
 488         const int *p = codec->sample_fmts;
 489
 490         // get default av_sample_fmt from mlt_audio_format
 491         if ( format )
 492         {
 493                 if ( !strcmp( format, "s32le" ) )
 494                         sample_fmt = AV_SAMPLE_FMT_S32;
 495                 else if ( !strcmp( format, "f32le" ) )
 496                         sample_fmt = AV_SAMPLE_FMT_FLT;
 497                 else if ( !strcmp( format, "u8" ) )
 498                         sample_fmt = AV_SAMPLE_FMT_U8;
 499 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
 500                 else if ( !strcmp( format, "s32" ) )
 501                         sample_fmt = AV_SAMPLE_FMT_S32P;
 502                 else if ( !strcmp( format, "float" ) )
 503                         sample_fmt = AV_SAMPLE_FMT_FLTP;
 504 #endif
 505         }
 506         // check if codec supports our mlt_audio_format
 507         for ( ; *p != -1; p++ )
 508         {
 509                 if ( *p == sample_fmt )
 510                         return sample_fmt;
 511         }
 512         // no match - pick first one we support
 513         for ( p = codec->sample_fmts; *p != -1; p++ )
 514         {
 515                 switch (*p)
 516                 {
 517                 case AV_SAMPLE_FMT_U8:
 518                 case AV_SAMPLE_FMT_S16:
 519                 case AV_SAMPLE_FMT_S32:
 520                 case AV_SAMPLE_FMT_FLT:
 521 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
 522                 case AV_SAMPLE_FMT_U8P:
 523                 case AV_SAMPLE_FMT_S16P:
 524                 case AV_SAMPLE_FMT_S32P:
 525                 case AV_SAMPLE_FMT_FLTP:
 526 #endif
 527                         return *p;
 528                 default:
 529                         break;
 530                 }
 531         }
 532         mlt_log_error( properties, "audio codec sample_fmt not compatible" );
 533
 534         return AV_SAMPLE_FMT_NONE;
 535 }
 536
 537 static uint8_t* interleaved_to_planar( int samples, int channels, uint8_t* audio, int bytes_per_sample )
 538 {
 539         uint8_t *buffer = mlt_pool_alloc( AUDIO_ENCODE_BUFFER_SIZE );
 540         uint8_t *p = buffer;
 541         int c;
 542
 543         memset( buffer, 0, AUDIO_ENCODE_BUFFER_SIZE );
 544         for ( c = 0; c < channels; c++ )
 545         {
 546                 uint8_t *q = audio + c * bytes_per_sample;
 547                 int i = samples + 1;
 548                 while ( --i )
 549                 {
 550                         memcpy( p, q, bytes_per_sample );
 551                         p += bytes_per_sample;
 552                         q += channels * bytes_per_sample;
 553                 }
 554         }
 555         return buffer;
 556 }
 557
 558 /** Add an audio output stream
 559 */
 560
 561 static AVStream *add_audio_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec, int channels )
 562 {
 563         // Get the properties
 564         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 565
 566         // Create a new stream
 567 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
 568         AVStream *st = avformat_new_stream( oc, codec );
 569 #else
 570         AVStream *st = av_new_stream( oc, oc->nb_streams );
 571 #endif
 572
 573         // If created, then initialise from properties
 574         if ( st != NULL )
 575         {
 576                 AVCodecContext *c = st->codec;
 577
 578                 // Establish defaults from AVOptions
 579 #if LIBAVCODEC_VERSION_MAJOR >= 53
 580                 avcodec_get_context_defaults3( c, codec );
 581 #else
 582                 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
 583 #endif
 584
 585                 c->codec_id = codec->id;
 586                 c->codec_type = CODEC_TYPE_AUDIO;
 587                 c->sample_fmt = pick_sample_fmt( properties, codec );
 588
 589 #if 0 // disabled until some audio codecs are multi-threaded
 590                 // Setup multi-threading
 591                 int thread_count = mlt_properties_get_int( properties, "threads" );
 592                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 593                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 594                 if ( thread_count > 1 )
 595                         c->thread_count = thread_count;
 596 #endif
 597
 598                 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 599                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 600
 601                 // Allow the user to override the audio fourcc
 602                 if ( mlt_properties_get( properties, "atag" ) )
 603                 {
 604                         char *tail = NULL;
 605                         char *arg = mlt_properties_get( properties, "atag" );
 606                         int tag = strtol( arg, &tail, 0);
 607                         if( !tail || *tail )
 608                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 609                         c->codec_tag = tag;
 610                 }
 611
 612                 // Process properties as AVOptions
 613                 char *apre = mlt_properties_get( properties, "apre" );
 614                 if ( apre )
 615                 {
 616                         mlt_properties p = mlt_properties_load( apre );
 617                         apply_properties( c, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 618                         mlt_properties_close( p );
 619                 }
 620                 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 621
 622                 int audio_qscale = mlt_properties_get_int( properties, "aq" );
 623                 if ( audio_qscale > QSCALE_NONE )
 624                 {
 625                         c->flags |= CODEC_FLAG_QSCALE;
 626                         c->global_quality = FF_QP2LAMBDA * audio_qscale;
 627 #if LIBAVFORMAT_VERSION_MAJOR < 53
 628                         st->quality = c->global_quality;
 629 #endif
 630                 }
 631
 632                 // Set parameters controlled by MLT
 633                 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
 634                 c->time_base = ( AVRational ){ 1, c->sample_rate };
 635                 c->channels = channels;
 636
 637                 if ( mlt_properties_get( properties, "alang" ) != NULL )
 638 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
 639                         av_dict_set( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
 640 #else
 641                         av_metadata_set2( &oc->metadata, "language", mlt_properties_get( properties, "alang" ), 0 );
 642 #endif
 643         }
 644         else
 645         {
 646                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for audio\n" );
 647         }
 648
 649         return st;
 650 }
 651
 652 static int open_audio( mlt_properties properties, AVFormatContext *oc, AVStream *st, int audio_outbuf_size, const char *codec_name )
 653 {
 654         // We will return the audio input size from here
 655         int audio_input_frame_size = 0;
 656
 657         // Get the context
 658         AVCodecContext *c = st->codec;
 659
 660         // Find the encoder
 661         AVCodec *codec;
 662         if ( codec_name )
 663                 codec = avcodec_find_encoder_by_name( codec_name );
 664         else
 665                 codec = avcodec_find_encoder( c->codec_id );
 666
 667         // Process properties as AVOptions on the AVCodec
 668         if ( codec && codec->priv_class )
 669         {
 670                 char *apre = mlt_properties_get( properties, "apre" );
 671                 if ( !c->priv_data && codec->priv_data_size )
 672                 {
 673                         c->priv_data = av_mallocz( codec->priv_data_size );
 674                         *(const AVClass **) c->priv_data = codec->priv_class;
 675 //                      av_opt_set_defaults( c );
 676                 }
 677                 if ( apre )
 678                 {
 679                         mlt_properties p = mlt_properties_load( apre );
 680                         apply_properties( c->priv_data, p, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 681                         mlt_properties_close( p );
 682                 }
 683                 apply_properties( c->priv_data, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 684         }
 685
 686         // Continue if codec found and we can open it
 687 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
 688         if ( codec && avcodec_open2( c, codec, NULL ) >= 0 )
 689 #else
 690         if ( codec && avcodec_open( c, codec ) >= 0 )
 691 #endif
 692         {
 693                 // ugly hack for PCM codecs (will be removed ASAP with new PCM
 694                 // support to compute the input frame size in samples
 695                 if ( c->frame_size <= 1 )
 696                 {
 697                         audio_input_frame_size = audio_outbuf_size / c->channels;
 698                         switch(st->codec->codec_id)
 699                         {
 700                                 case AV_CODEC_ID_PCM_S16LE:
 701                                 case AV_CODEC_ID_PCM_S16BE:
 702                                 case AV_CODEC_ID_PCM_U16LE:
 703                                 case AV_CODEC_ID_PCM_U16BE:
 704                                         audio_input_frame_size >>= 1;
 705                                         break;
 706                                 default:
 707                                         break;
 708                         }
 709                 }
 710                 else
 711                 {
 712                         audio_input_frame_size = c->frame_size;
 713                 }
 714
 715                 // Some formats want stream headers to be seperate (hmm)
 716                 if ( !strcmp( oc->oformat->name, "mp4" ) ||
 717                          !strcmp( oc->oformat->name, "mov" ) ||
 718                          !strcmp( oc->oformat->name, "3gp" ) )
 719                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 720         }
 721         else
 722         {
 723                 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
 724                 audio_input_frame_size = 0;
 725         }
 726
 727         return audio_input_frame_size;
 728 }
 729
 730 static void close_audio( AVFormatContext *oc, AVStream *st )
 731 {
 732         if ( st && st->codec )
 733                 avcodec_close( st->codec );
 734 }
 735
 736 /** Add a video output stream
 737 */
 738
 739 static AVStream *add_video_stream( mlt_consumer consumer, AVFormatContext *oc, AVCodec *codec )
 740 {
 741         // Get the properties
 742         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 743
 744         // Create a new stream
 745 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(10<<8)+0)
 746         AVStream *st = avformat_new_stream( oc, codec );
 747 #else
 748         AVStream *st = av_new_stream( oc, oc->nb_streams );
 749 #endif
 750
 751         if ( st != NULL )
 752         {
 753                 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
 754                 AVCodecContext *c = st->codec;
 755
 756                 // Establish defaults from AVOptions
 757 #if LIBAVCODEC_VERSION_MAJOR >= 53
 758                 avcodec_get_context_defaults3( c, codec );
 759 #else
 760                 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
 761 #endif
 762
 763                 c->codec_id = codec->id;
 764                 c->codec_type = CODEC_TYPE_VIDEO;
 765
 766                 // Setup multi-threading
 767                 int thread_count = mlt_properties_get_int( properties, "threads" );
 768                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 769                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 770                 if ( thread_count > 1 )
 771 #if LIBAVCODEC_VERSION_MAJOR >= 53
 772                         c->thread_count = thread_count;
 773 #else
 774                         avcodec_thread_init( c, thread_count );
 775 #endif
 776
 777                 // Process properties as AVOptions
 778                 char *vpre = mlt_properties_get( properties, "vpre" );
 779                 if ( vpre )
 780                 {
 781                         mlt_properties p = mlt_properties_load( vpre );
 782 #ifdef AVDATADIR
 783                         if ( mlt_properties_count( p ) < 1 )
 784                         {
 785                                 AVCodec *codec = avcodec_find_encoder( c->codec_id );
 786                                 if ( codec )
 787                                 {
 788                                         char *path = malloc( strlen(AVDATADIR) + strlen(codec->name) + strlen(vpre) + strlen(".ffpreset") + 2 );
 789                                         strcpy( path, AVDATADIR );
 790                                         strcat( path, codec->name );
 791                                         strcat( path, "-" );
 792                                         strcat( path, vpre );
 793                                         strcat( path, ".ffpreset" );
 794
 795                                         mlt_properties_close( p );
 796                                         p = mlt_properties_load( path );
 797                                         if ( mlt_properties_count( p ) > 0 )
 798                                                 mlt_properties_debug( p, path, stderr );
 799                                         free( path );
 800                                 }
 801                         }
 802                         else
 803                         {
 804                                 mlt_properties_debug( p, vpre, stderr );
 805                         }
 806 #endif
 807                         apply_properties( c, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 808                         mlt_properties_close( p );
 809                 }
 810                 int colorspace = mlt_properties_get_int( properties, "colorspace" );
 811                 mlt_properties_set( properties, "colorspace", NULL );
 812                 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 813                 mlt_properties_set_int( properties, "colorspace", colorspace );
 814
 815                 // Set options controlled by MLT
 816                 c->width = mlt_properties_get_int( properties, "width" );
 817                 c->height = mlt_properties_get_int( properties, "height" );
 818                 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
 819                 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
 820                 if ( st->time_base.den == 0 )
 821                         st->time_base = c->time_base;
 822                 c->pix_fmt = pix_fmt ? av_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 823
 824                 switch ( colorspace )
 825                 {
 826                 case 170:
 827                         c->colorspace = AVCOL_SPC_SMPTE170M;
 828                         break;
 829                 case 240:
 830                         c->colorspace = AVCOL_SPC_SMPTE240M;
 831                         break;
 832                 case 470:
 833                         c->colorspace = AVCOL_SPC_BT470BG;
 834                         break;
 835                 case 601:
 836                         c->colorspace = ( 576 % c->height ) ? AVCOL_SPC_SMPTE170M : AVCOL_SPC_BT470BG;
 837                         break;
 838                 case 709:
 839                         c->colorspace = AVCOL_SPC_BT709;
 840                         break;
 841                 }
 842
 843                 if ( mlt_properties_get( properties, "aspect" ) )
 844                 {
 845                         // "-aspect" on ffmpeg command line is display aspect ratio
 846                         double ar = mlt_properties_get_double( properties, "aspect" );
 847                         c->sample_aspect_ratio = av_d2q( ar * c->height / c->width, 255 );
 848                 }
 849                 else
 850                 {
 851                         c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
 852                         c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
 853                 }
 854                 st->sample_aspect_ratio = c->sample_aspect_ratio;
 855
 856                 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
 857                 {
 858                         c->flags |= CODEC_FLAG_QSCALE;
 859                         c->global_quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
 860 #if LIBAVFORMAT_VERSION_MAJOR < 53
 861                         st->quality = c->global_quality;
 862 #endif
 863                 }
 864
 865                 // Allow the user to override the video fourcc
 866                 if ( mlt_properties_get( properties, "vtag" ) )
 867                 {
 868                         char *tail = NULL;
 869                         const char *arg = mlt_properties_get( properties, "vtag" );
 870                         int tag = strtol( arg, &tail, 0);
 871                         if( !tail || *tail )
 872                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 873                         c->codec_tag = tag;
 874                 }
 875
 876                 // Some formats want stream headers to be seperate
 877                 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
 878                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 879
 880                 // Translate these standard mlt consumer properties to ffmpeg
 881                 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
 882                      mlt_properties_get_int( properties, "deinterlace" ) == 0 )
 883                 {
 884                         if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
 885                                 c->flags |= CODEC_FLAG_INTERLACED_DCT;
 886                         if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
 887                                 c->flags |= CODEC_FLAG_INTERLACED_ME;
 888                 }
 889
 890                 // parse the ratecontrol override string
 891                 int i;
 892                 char *rc_override = mlt_properties_get( properties, "rc_override" );
 893                 for ( i = 0; rc_override; i++ )
 894                 {
 895                         int start, end, q;
 896                         int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
 897                         if ( e != 3 )
 898                                 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "Error parsing rc_override\n" );
 899                         c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
 900                         c->rc_override[i].start_frame = start;
 901                         c->rc_override[i].end_frame = end;
 902                         if ( q > 0 )
 903                         {
 904                                 c->rc_override[i].qscale = q;
 905                                 c->rc_override[i].quality_factor = 1.0;
 906                         }
 907                         else
 908                         {
 909                                 c->rc_override[i].qscale = 0;
 910                                 c->rc_override[i].quality_factor = -q / 100.0;
 911                         }
 912                         rc_override = strchr( rc_override, '/' );
 913                         if ( rc_override )
 914                                 rc_override++;
 915                 }
 916                 c->rc_override_count = i;
 917                 if ( !c->rc_initial_buffer_occupancy )
 918                         c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
 919                 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
 920
 921                 // Setup dual-pass
 922                 i = mlt_properties_get_int( properties, "pass" );
 923                 if ( i == 1 )
 924                         c->flags |= CODEC_FLAG_PASS1;
 925                 else if ( i == 2 )
 926                         c->flags |= CODEC_FLAG_PASS2;
 927                 if ( codec->id != AV_CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
 928                 {
 929                         char logfilename[1024];
 930                         FILE *f;
 931                         int size;
 932                         char *logbuffer;
 933
 934                         snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
 935                                 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
 936                         if ( c->flags & CODEC_FLAG_PASS1 )
 937                         {
 938                                 f = fopen( logfilename, "w" );
 939                                 if ( !f )
 940                                         perror( logfilename );
 941                                 else
 942                                         mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
 943                         }
 944                         else
 945                         {
 946                                 /* read the log file */
 947                                 f = fopen( logfilename, "r" );
 948                                 if ( !f )
 949                                 {
 950                                         perror(logfilename);
 951                                 }
 952                                 else
 953                                 {
 954                                         mlt_properties_set( properties, "_logfilename", logfilename );
 955                                         fseek( f, 0, SEEK_END );
 956                                         size = ftell( f );
 957                                         fseek( f, 0, SEEK_SET );
 958                                         logbuffer = av_malloc( size + 1 );
 959                                         if ( !logbuffer )
 960                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate log buffer\n" );
 961                                         else
 962                                         {
 963                                                 if ( size >= 0 )
 964                                                 {
 965                                                         size = fread( logbuffer, 1, size, f );
 966                                                         logbuffer[size] = '\0';
 967                                                         c->stats_in = logbuffer;
 968                                                 }
 969                                         }
 970                                         fclose( f );
 971                                 }
 972                         }
 973                 }
 974         }
 975         else
 976         {
 977                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not allocate a stream for video\n" );
 978         }
 979
 980         return st;
 981 }
 982
 983 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
 984 {
 985         // Allocate a frame
 986         AVFrame *picture = avcodec_alloc_frame();
 987
 988         // Determine size of the
 989         int size = avpicture_get_size(pix_fmt, width, height);
 990
 991         // Allocate the picture buf
 992         uint8_t *picture_buf = av_malloc(size);
 993
 994         // If we have both, then fill the image
 995         if ( picture != NULL && picture_buf != NULL )
 996         {
 997                 // Fill the frame with the allocated buffer
 998                 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
 999         }
1000         else
1001         {
1002                 // Something failed - clean up what we can
1003                 av_free( picture );
1004                 av_free( picture_buf );
1005                 picture = NULL;
1006         }
1007
1008         return picture;
1009 }
1010
1011 static int open_video( mlt_properties properties, AVFormatContext *oc, AVStream *st, const char *codec_name )
1012 {
1013         // Get the codec
1014         AVCodecContext *video_enc = st->codec;
1015
1016         // find the video encoder
1017         AVCodec *codec;
1018         if ( codec_name )
1019                 codec = avcodec_find_encoder_by_name( codec_name );
1020         else
1021                 codec = avcodec_find_encoder( video_enc->codec_id );
1022
1023         // Process properties as AVOptions on the AVCodec
1024         if ( codec && codec->priv_class )
1025         {
1026                 char *vpre = mlt_properties_get( properties, "vpre" );
1027                 if ( !video_enc->priv_data && codec->priv_data_size )
1028                 {
1029                         video_enc->priv_data = av_mallocz( codec->priv_data_size );
1030                         *(const AVClass **) video_enc->priv_data = codec->priv_class;
1031 //                      av_opt_set_defaults( video_enc );
1032                 }
1033                 if ( vpre )
1034                 {
1035                         mlt_properties p = mlt_properties_load( vpre );
1036                         apply_properties( video_enc->priv_data, p, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
1037                         mlt_properties_close( p );
1038                 }
1039                 apply_properties( video_enc->priv_data, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
1040         }
1041
1042         if( codec && codec->pix_fmts )
1043         {
1044                 const enum PixelFormat *p = codec->pix_fmts;
1045                 for( ; *p!=-1; p++ )
1046                 {
1047                         if( *p == video_enc->pix_fmt )
1048                                 break;
1049                 }
1050                 if( *p == -1 )
1051                         video_enc->pix_fmt = codec->pix_fmts[ 0 ];
1052         }
1053
1054 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
1055         int result = codec && avcodec_open2( video_enc, codec, NULL ) >= 0;
1056 #else
1057         int result = codec && avcodec_open( video_enc, codec ) >= 0;
1058 #endif
1059
1060         return result;
1061 }
1062
1063 void close_video(AVFormatContext *oc, AVStream *st)
1064 {
1065         if ( st && st->codec )
1066         {
1067                 av_freep( &st->codec->stats_in );
1068                 avcodec_close(st->codec);
1069         }
1070 }
1071
1072 static inline long time_difference( struct timeval *time1 )
1073 {
1074         struct timeval time2;
1075         gettimeofday( &time2, NULL );
1076         return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
1077 }
1078
1079 static int mlt_write(void *h, uint8_t *buf, int size)
1080 {
1081         mlt_properties properties = (mlt_properties) h;
1082         mlt_events_fire( properties, "avformat-write", buf, &size, NULL );
1083         return 0;
1084 }
1085
1086 static void write_transmitter( mlt_listener listener, mlt_properties owner, mlt_service service, void **args )
1087 {
1088         int *p_size = (int*) args[1];
1089         listener( owner, service, (uint8_t*) args[0], *p_size );
1090 }
1091
1092 /** The main thread - the argument is simply the consumer.
1093 */
1094
1095 static void *consumer_thread( void *arg )
1096 {
1097         // Map the argument to the object
1098         mlt_consumer consumer = arg;
1099
1100         // Get the properties
1101         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
1102
1103         // Get the terminate on pause property
1104         int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
1105         int terminated = 0;
1106
1107         // Determine if feed is slow (for realtime stuff)
1108         int real_time_output = mlt_properties_get_int( properties, "real_time" );
1109
1110         // Time structures
1111         struct timeval ante;
1112
1113         // Get the frame rate
1114         double fps = mlt_properties_get_double( properties, "fps" );
1115
1116         // Get width and height
1117         int width = mlt_properties_get_int( properties, "width" );
1118         int height = mlt_properties_get_int( properties, "height" );
1119         int img_width = width;
1120         int img_height = height;
1121
1122         // Get default audio properties
1123         int channels = mlt_properties_get_int( properties, "channels" );
1124         int total_channels = channels;
1125         int frequency = mlt_properties_get_int( properties, "frequency" );
1126         void *pcm = NULL;
1127         int samples = 0;
1128
1129         // AVFormat audio buffer and frame size
1130         int audio_outbuf_size = AUDIO_BUFFER_SIZE;
1131         uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
1132         int audio_input_nb_samples = 0;
1133
1134         // AVFormat video buffer and frame count
1135         int frame_count = 0;
1136         int video_outbuf_size = VIDEO_BUFFER_SIZE;
1137         uint8_t *video_outbuf = av_malloc( video_outbuf_size );
1138
1139         // Used for the frame properties
1140         mlt_frame frame = NULL;
1141         mlt_properties frame_properties = NULL;
1142
1143         // Get the queues
1144         mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
1145         sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
1146
1147         // For receiving images from an mlt_frame
1148         uint8_t *image;
1149         mlt_image_format img_fmt = mlt_image_yuv422;
1150         // Get the image format to use for rendering threads
1151         const char* img_fmt_name = mlt_properties_get( properties, "mlt_image_format" );
1152         if ( img_fmt_name )
1153         {
1154                 if ( !strcmp( img_fmt_name, "rgb24" ) )
1155                         img_fmt = mlt_image_rgb24;
1156                 else if ( !strcmp( img_fmt_name, "rgb24a" ) )
1157                         img_fmt = mlt_image_rgb24a;
1158                 else if ( !strcmp( img_fmt_name, "yuv420p" ) )
1159                         img_fmt = mlt_image_yuv420p;
1160         }
1161         else if ( mlt_properties_get( properties, "pix_fmt" ) )
1162         {
1163                 img_fmt_name = mlt_properties_get( properties, "pix_fmt" );
1164                 if ( !strcmp( img_fmt_name, "rgba" ) ||
1165                      !strcmp( img_fmt_name, "argb" ) ||
1166                      !strcmp( img_fmt_name, "bgra" ) )
1167                         img_fmt = mlt_image_rgb24a;
1168         }
1169
1170         // Need two av pictures for converting
1171         AVFrame *converted_avframe = NULL;
1172         AVFrame *audio_avframe = NULL;
1173         AVFrame *video_avframe = alloc_picture( pick_pix_fmt( img_fmt ), width, height );
1174
1175         // For receiving audio samples back from the fifo
1176         uint8_t *audio_buf_1 = av_malloc( AUDIO_ENCODE_BUFFER_SIZE );
1177         uint8_t *audio_buf_2 = NULL;
1178         int count = 0;
1179
1180         // Allocate the context
1181         AVFormatContext *oc = NULL;
1182
1183         // Streams
1184         AVStream *video_st = NULL;
1185         AVStream *audio_st[ MAX_AUDIO_STREAMS ];
1186
1187         // Time stamps
1188         double audio_pts = 0;
1189         double video_pts = 0;
1190
1191         // Frames dispatched
1192         long int frames = 0;
1193         long int total_time = 0;
1194
1195         // Determine the format
1196         AVOutputFormat *fmt = NULL;
1197         const char *filename = mlt_properties_get( properties, "target" );
1198         char *format = mlt_properties_get( properties, "f" );
1199         char *vcodec = mlt_properties_get( properties, "vcodec" );
1200         char *acodec = mlt_properties_get( properties, "acodec" );
1201         AVCodec *audio_codec = NULL;
1202         AVCodec *video_codec = NULL;
1203
1204         // Used to store and override codec ids
1205         int audio_codec_id;
1206         int video_codec_id;
1207
1208         // Misc
1209         char key[27];
1210         mlt_properties frame_meta_properties = mlt_properties_new();
1211         int error_count = 0;
1212         int64_t synth_audio_pts = 0;
1213
1214         // Initialize audio_st
1215         int i = MAX_AUDIO_STREAMS;
1216         while ( i-- )
1217                 audio_st[i] = NULL;
1218
1219         // Check for user selected format first
1220         if ( format != NULL )
1221                 fmt = av_guess_format( format, NULL, NULL );
1222
1223         // Otherwise check on the filename
1224         if ( fmt == NULL && filename != NULL )
1225                 fmt = av_guess_format( NULL, filename, NULL );
1226
1227         // Otherwise default to mpeg
1228         if ( fmt == NULL )
1229                 fmt = av_guess_format( "mpeg", NULL, NULL );
1230
1231         // We need a filename - default to stdout?
1232         if ( filename == NULL || !strcmp( filename, "" ) )
1233                 filename = "pipe:";
1234
1235 #if LIBAVUTIL_VERSION_INT >= ((53<<16)+(2<<8)+0)
1236         avformat_alloc_output_context2( &oc, fmt, format, filename );
1237 #else
1238         oc = avformat_alloc_context( );
1239         oc->oformat = fmt;
1240         snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
1241
1242         if ( oc->oformat && oc->oformat->priv_class && !oc->priv_data && oc->oformat->priv_data_size ) {
1243                 oc->priv_data = av_mallocz( oc->oformat->priv_data_size );
1244                 if ( oc->priv_data ) {
1245                         *(const AVClass**)oc->priv_data = oc->oformat->priv_class;
1246                         av_opt_set_defaults( oc->priv_data );
1247                 }
1248         }
1249 #endif
1250
1251         // Get the codec ids selected
1252         audio_codec_id = fmt->audio_codec;
1253         video_codec_id = fmt->video_codec;
1254
1255         // Check for audio codec overides
1256         if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
1257                 audio_codec_id = AV_CODEC_ID_NONE;
1258         else if ( acodec )
1259         {
1260                 audio_codec = avcodec_find_encoder_by_name( acodec );
1261                 if ( audio_codec )
1262                 {
1263                         audio_codec_id = audio_codec->id;
1264                         if ( audio_codec_id == AV_CODEC_ID_AC3 && avcodec_find_encoder_by_name( "ac3_fixed" ) )
1265                         {
1266                                 mlt_properties_set( properties, "_acodec", "ac3_fixed" );
1267                                 acodec = mlt_properties_get( properties, "_acodec" );
1268                                 audio_codec = avcodec_find_encoder_by_name( acodec );
1269                         }
1270                         else if ( !strcmp( acodec, "aac" ) || !strcmp( acodec, "vorbis" ) )
1271                         {
1272                                 mlt_properties_set( properties, "astrict", "experimental" );
1273                         }
1274                 }
1275                 else
1276                 {
1277                         audio_codec_id = AV_CODEC_ID_NONE;
1278                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "audio codec %s unrecognised - ignoring\n", acodec );
1279                 }
1280         }
1281         else
1282         {
1283                 audio_codec = avcodec_find_encoder( audio_codec_id );
1284         }
1285
1286         // Check for video codec overides
1287         if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
1288                 video_codec_id = AV_CODEC_ID_NONE;
1289         else if ( vcodec )
1290         {
1291                 video_codec = avcodec_find_encoder_by_name( vcodec );
1292                 if ( video_codec )
1293                 {
1294                         video_codec_id = video_codec->id;
1295                 }
1296                 else
1297                 {
1298                         video_codec_id = AV_CODEC_ID_NONE;
1299                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "video codec %s unrecognised - ignoring\n", vcodec );
1300                 }
1301         }
1302         else
1303         {
1304                 video_codec = avcodec_find_encoder( video_codec_id );
1305         }
1306
1307         // Write metadata
1308         for ( i = 0; i < mlt_properties_count( properties ); i++ )
1309         {
1310                 char *name = mlt_properties_get_name( properties, i );
1311                 if ( name && !strncmp( name, "meta.attr.", 10 ) )
1312                 {
1313                         char *key = strdup( name + 10 );
1314                         char *markup = strrchr( key, '.' );
1315                         if ( markup && !strcmp( markup, ".markup") )
1316                         {
1317                                 markup[0] = '\0';
1318                                 if ( !strstr( key, ".stream." ) )
1319 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(8<<8)+0)
1320                                         av_dict_set( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1321 #else
1322                                         av_metadata_set2( &oc->metadata, key, mlt_properties_get_value( properties, i ), 0 );
1323 #endif
1324                         }
1325                         free( key );
1326                 }
1327         }
1328
1329         // Get a frame now, so we can set some AVOptions from properties.
1330         frame = mlt_consumer_rt_frame( consumer );
1331
1332         // Set the timecode from the MLT metadata if available.
1333     if ( frame )
1334     {
1335         const char *timecode = mlt_properties_get( MLT_FRAME_PROPERTIES(frame), "meta.attr.vitc.markup" );
1336         if ( timecode && strcmp( timecode, "" ) )
1337         {
1338             mlt_properties_set( properties, "timecode", timecode );
1339             if ( strchr( timecode, ';' ) )
1340                 mlt_properties_set_int( properties, "drop_frame_timecode", 1 );
1341         }
1342     }
1343
1344         // Add audio and video streams
1345         if ( video_codec_id != AV_CODEC_ID_NONE )
1346                 video_st = add_video_stream( consumer, oc, video_codec );
1347         if ( audio_codec_id != AV_CODEC_ID_NONE )
1348         {
1349                 int is_multi = 0;
1350
1351                 total_channels = 0;
1352                 // multitrack audio
1353                 for ( i = 0; i < MAX_AUDIO_STREAMS; i++ )
1354                 {
1355                         sprintf( key, "channels.%d", i );
1356                         int j = mlt_properties_get_int( properties, key );
1357                         if ( j )
1358                         {
1359                                 is_multi = 1;
1360                                 total_channels += j;
1361                                 audio_st[i] = add_audio_stream( consumer, oc, audio_codec, j );
1362                         }
1363                 }
1364                 // single track
1365                 if ( !is_multi )
1366                 {
1367                         audio_st[0] = add_audio_stream( consumer, oc, audio_codec, channels );
1368                         total_channels = channels;
1369                 }
1370         }
1371         mlt_properties_set_int( properties, "channels", total_channels );
1372
1373         // Audio format is determined when adding the audio stream
1374         mlt_audio_format aud_fmt = mlt_audio_none;
1375         if ( audio_st[0] )
1376                 aud_fmt = get_mlt_audio_format( audio_st[0]->codec->sample_fmt );
1377         int sample_bytes = mlt_audio_format_size( aud_fmt, 1, 1 );
1378         sample_bytes = sample_bytes ? sample_bytes : 1; // prevent divide by zero
1379
1380         // Set the parameters (even though we have none...)
1381 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1382         if ( av_set_parameters(oc, NULL) >= 0 )
1383 #endif
1384         {
1385 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1386                 if ( mlt_properties_get( properties, "muxpreload" ) && ! mlt_properties_get( properties, "preload" ) )
1387                         mlt_properties_set_double( properties, "preload", mlt_properties_get_double( properties, "muxpreload" ) );
1388 #else
1389                 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
1390 #endif
1391                 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
1392
1393                 // Process properties as AVOptions
1394                 char *fpre = mlt_properties_get( properties, "fpre" );
1395                 if ( fpre )
1396                 {
1397                         mlt_properties p = mlt_properties_load( fpre );
1398                         apply_properties( oc, p, AV_OPT_FLAG_ENCODING_PARAM );
1399                         if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1400                                 apply_properties( oc->priv_data, p, AV_OPT_FLAG_ENCODING_PARAM );
1401                         mlt_properties_close( p );
1402                 }
1403                 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
1404                 if ( oc->oformat && oc->oformat->priv_class && oc->priv_data )
1405                         apply_properties( oc->priv_data, properties, AV_OPT_FLAG_ENCODING_PARAM );
1406
1407                 if ( video_st && !open_video( properties, oc, video_st, vcodec? vcodec : NULL ) )
1408                         video_st = NULL;
1409                 for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
1410                 {
1411                         audio_input_nb_samples = open_audio( properties, oc, audio_st[i], audio_outbuf_size,
1412                                 acodec? acodec : NULL );
1413                         if ( !audio_input_nb_samples )
1414                         {
1415                                 // Remove the audio stream from the output context
1416                                 int j;
1417                                 for ( j = 0; j < oc->nb_streams; j++ )
1418                                 {
1419                                         if ( oc->streams[j] == audio_st[i] )
1420                                                 av_freep( &oc->streams[j] );
1421                                 }
1422                                 --oc->nb_streams;
1423                                 audio_st[i] = NULL;
1424                         }
1425                 }
1426
1427                 // Setup custom I/O if redirecting
1428                 if ( mlt_properties_get_int( properties, "redirect" ) )
1429                 {
1430                         int buffer_size = 32768;
1431                         unsigned char *buffer = av_malloc( buffer_size );
1432 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1433                         AVIOContext* io = avio_alloc_context( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1434 #else
1435                         ByteIOContext* io = av_alloc_put_byte( buffer, buffer_size, 1, properties, NULL, mlt_write, NULL );
1436 #endif
1437                         if ( buffer && io )
1438                         {
1439                                 oc->pb = io;
1440 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1441                                 oc->flags |= AVFMT_FLAG_CUSTOM_IO;
1442 #endif
1443                                 mlt_properties_set_data( properties, "avio_buffer", buffer, buffer_size, av_free, NULL );
1444                                 mlt_properties_set_data( properties, "avio_context", io, 0, av_free, NULL );
1445                                 mlt_events_register( properties, "avformat-write", (mlt_transmitter) write_transmitter );
1446                         }
1447                         else
1448                         {
1449                                 av_free( buffer );
1450                                 mlt_log_error( MLT_CONSUMER_SERVICE(consumer), "failed to setup output redirection\n" );
1451                         }
1452                 }
1453                 // Open the output file, if needed
1454                 else if ( !( fmt->flags & AVFMT_NOFILE ) )
1455                 {
1456 #if LIBAVFORMAT_VERSION_MAJOR >= 53
1457                         if ( avio_open( &oc->pb, filename, AVIO_FLAG_WRITE ) < 0 )
1458 #else
1459                         if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
1460 #endif
1461                         {
1462                                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Could not open '%s'\n", filename );
1463                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1464                                 goto on_fatal_error;
1465                         }
1466                 }
1467
1468                 // Write the stream header.
1469                 if ( mlt_properties_get_int( properties, "running" ) )
1470 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(2<<8)+0)
1471                         avformat_write_header( oc, NULL );
1472 #else
1473                         av_write_header( oc );
1474 #endif
1475         }
1476 #if LIBAVFORMAT_VERSION_INT < ((53<<16)+(2<<8)+0)
1477         else
1478         {
1479                 mlt_log_error( MLT_CONSUMER_SERVICE( consumer ), "Invalid output format parameters\n" );
1480                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1481                 goto on_fatal_error;
1482         }
1483 #endif
1484
1485         // Last check - need at least one stream
1486         if ( !audio_st[0] && !video_st )
1487         {
1488                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1489                 goto on_fatal_error;
1490         }
1491
1492         // Allocate picture
1493         if ( video_st )
1494                 converted_avframe = alloc_picture( video_st->codec->pix_fmt, width, height );
1495
1496 #if LIBAVCODEC_VERSION_MAJOR >= 54
1497         // Allocate audio AVFrame
1498         if ( audio_st[0] )
1499         {
1500                 audio_avframe = avcodec_alloc_frame();
1501                 if ( audio_avframe ) {
1502                         AVCodecContext *c = audio_st[0]->codec;
1503                         audio_avframe->format = c->sample_fmt;
1504                         audio_avframe->nb_samples = audio_input_nb_samples;
1505                         audio_avframe->channel_layout = c->channel_layout;
1506                 } else {
1507                         mlt_log_error( MLT_CONSUMER_SERVICE(consumer), "failed to allocate audio AVFrame\n" );
1508                         mlt_events_fire( properties, "consumer-fatal-error", NULL );
1509                         goto on_fatal_error;
1510                 }
1511         }
1512 #endif
1513
1514         // Get the starting time (can ignore the times above)
1515         gettimeofday( &ante, NULL );
1516
1517         // Loop while running
1518         while( mlt_properties_get_int( properties, "running" ) &&
1519                ( !terminated || ( video_st && mlt_deque_count( queue ) ) ) )
1520         {
1521                 if ( !frame )
1522                         frame = mlt_consumer_rt_frame( consumer );
1523
1524                 // Check that we have a frame to work with
1525                 if ( frame != NULL )
1526                 {
1527                         // Increment frames dispatched
1528                         frames ++;
1529
1530                         // Default audio args
1531                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1532
1533                         // Check for the terminated condition
1534                         terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1535
1536                         // Get audio and append to the fifo
1537                         if ( !terminated && audio_st[0] )
1538                         {
1539                                 samples = mlt_sample_calculator( fps, frequency, count ++ );
1540                                 channels = total_channels;
1541                                 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
1542
1543                                 // Save the audio channel remap properties for later
1544                                 mlt_properties_pass( frame_meta_properties, frame_properties, "meta.map.audio." );
1545
1546                                 // Create the fifo if we don't have one
1547                                 if ( fifo == NULL )
1548                                 {
1549                                         fifo = sample_fifo_init( frequency, channels );
1550                                         mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1551                                 }
1552                                 if ( pcm )
1553                                 {
1554                                         // Silence if not normal forward speed
1555                                         if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1556                                                 memset( pcm, 0, samples * channels * sample_bytes );
1557
1558                                         // Append the samples
1559                                         sample_fifo_append( fifo, pcm, samples * channels * sample_bytes );
1560                                         total_time += ( samples * 1000000 ) / frequency;
1561                                 }
1562                                 if ( !video_st )
1563                                         mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1564                         }
1565
1566                         // Encode the image
1567                         if ( !terminated && video_st )
1568                                 mlt_deque_push_back( queue, frame );
1569                         else
1570                                 mlt_frame_close( frame );
1571                         frame = NULL;
1572                 }
1573
1574                 // While we have stuff to process, process...
1575                 while ( 1 )
1576                 {
1577                         // Write interleaved audio and video frames
1578                         if ( !video_st || ( video_st && audio_st[0] && audio_pts < video_pts ) )
1579                         {
1580                                 // Write audio
1581                                 if ( ( video_st && terminated ) || ( channels * audio_input_nb_samples ) < sample_fifo_used( fifo ) / sample_bytes )
1582                                 {
1583                                         int j = 0; // channel offset into interleaved source buffer
1584                                         int n = FFMIN( FFMIN( channels * audio_input_nb_samples, sample_fifo_used( fifo ) / sample_bytes ), AUDIO_ENCODE_BUFFER_SIZE );
1585
1586                                         // Get the audio samples
1587                                         if ( n > 0 )
1588                                         {
1589                                                 sample_fifo_fetch( fifo, audio_buf_1, n * sample_bytes );
1590                                         }
1591                                         else if ( audio_codec_id == AV_CODEC_ID_VORBIS && terminated )
1592                                         {
1593                                                 // This prevents an infinite loop when some versions of vorbis do not
1594                                                 // increment pts when encoding silence.
1595                                                 audio_pts = video_pts;
1596                                                 break;
1597                                         }
1598                                         else
1599                                         {
1600                                                 memset( audio_buf_1, 0, AUDIO_ENCODE_BUFFER_SIZE );
1601                                         }
1602                                         samples = n / channels;
1603
1604                                         // For each output stream
1605                                         for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i] && j < total_channels; i++ )
1606                                         {
1607                                                 AVStream *stream = audio_st[i];
1608                                                 AVCodecContext *codec = stream->codec;
1609                                                 AVPacket pkt;
1610
1611                                                 av_init_packet( &pkt );
1612                                                 pkt.data = audio_outbuf;
1613                                                 pkt.size = audio_outbuf_size;
1614
1615                                                 // Optimized for single track and no channel remap
1616                                                 if ( !audio_st[1] && !mlt_properties_count( frame_meta_properties ) )
1617                                                 {
1618                                                         void* p = audio_buf_1;
1619 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1620                                                         if ( codec->sample_fmt == AV_SAMPLE_FMT_FLTP )
1621                                                                 p = interleaved_to_planar( samples, channels, p, sizeof( float ) );
1622                                                         else if ( codec->sample_fmt == AV_SAMPLE_FMT_S16P )
1623                                                                 p = interleaved_to_planar( samples, channels, p, sizeof( int16_t ) );
1624                                                         else if ( codec->sample_fmt == AV_SAMPLE_FMT_S32P )
1625                                                                 p = interleaved_to_planar( samples, channels, p, sizeof( int32_t ) );
1626                                                         else if ( codec->sample_fmt == AV_SAMPLE_FMT_U8P )
1627                                                                 p = interleaved_to_planar( samples, channels, p, sizeof( uint8_t ) );
1628 #endif
1629 #if LIBAVCODEC_VERSION_MAJOR >= 54
1630                                                         audio_avframe->nb_samples = FFMAX( samples, audio_input_nb_samples );
1631 #if LIBAVCODEC_VERSION_MAJOR >= 55
1632                                                         if ( audio_codec_id == AV_CODEC_ID_VORBIS )
1633                                                                 audio_avframe->pts = synth_audio_pts;
1634                                                         synth_audio_pts += audio_avframe->nb_samples;
1635 #endif
1636                                                         avcodec_fill_audio_frame( audio_avframe, codec->channels, codec->sample_fmt,
1637                                                                 (const uint8_t*) p, AUDIO_ENCODE_BUFFER_SIZE, 0 );
1638                                                         int got_packet = 0;
1639                                                         int ret = avcodec_encode_audio2( codec, &pkt, audio_avframe, &got_packet );
1640                                                         if ( ret < 0 )
1641                                                                 pkt.size = ret;
1642                                                         else if ( !got_packet )
1643                                                                 pkt.size = 0;
1644 #else
1645                                                         codec->frame_size = FFMAX( samples, audio_input_nb_samples );
1646                                                         pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, p );
1647                                                         pkt.pts = codec->coded_frame? codec->coded_frame->pts : AV_NOPTS_VALUE;
1648                                                         pkt.flags |= PKT_FLAG_KEY;
1649 #endif
1650
1651 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
1652                                                         if ( p != audio_buf_1 )
1653                                                                 mlt_pool_release( p );
1654 #endif
1655                                                 }
1656                                                 else
1657                                                 {
1658                                                         // Extract the audio channels according to channel mapping
1659                                                         int dest_offset = 0; // channel offset into interleaved dest buffer
1660
1661                                                         // Get the number of channels for this stream
1662                                                         sprintf( key, "channels.%d", i );
1663                                                         int current_channels = mlt_properties_get_int( properties, key );
1664
1665                                                         // Clear the destination audio buffer.
1666                                                         if ( !audio_buf_2 )
1667                                                                 audio_buf_2 = av_mallocz( AUDIO_ENCODE_BUFFER_SIZE );
1668                                                         else
1669                                                                 memset( audio_buf_2, 0, AUDIO_ENCODE_BUFFER_SIZE );
1670
1671                                                         // For each output channel
1672                                                         while ( dest_offset < current_channels && j < total_channels )
1673                                                         {
1674                                                                 int map_start = -1, map_channels = 0;
1675                                                                 int source_offset = 0;
1676                                                                 int k;
1677
1678                                                                 // Look for a mapping that starts at j
1679                                                                 for ( k = 0; k < (MAX_AUDIO_STREAMS * 2) && map_start != j; k++ )
1680                                                                 {
1681                                                                         sprintf( key, "%d.channels", k );
1682                                                                         map_channels = mlt_properties_get_int( frame_meta_properties, key );
1683                                                                         sprintf( key, "%d.start", k );
1684                                                                         if ( mlt_properties_get( frame_meta_properties, key ) )
1685                                                                                 map_start = mlt_properties_get_int( frame_meta_properties, key );
1686                                                                         if ( map_start != j )
1687                                                                                 source_offset += map_channels;
1688                                                                 }
1689
1690                                                                 // If no mapping
1691                                                                 if ( map_start != j )
1692                                                                 {
1693                                                                         map_channels = current_channels;
1694                                                                         source_offset = j;
1695                                                                 }
1696
1697                                                                 // Copy samples if source offset valid
1698                                                                 if ( source_offset < channels )
1699                                                                 {
1700                                                                         // Interleave the audio buffer with the # channels for this stream/mapping.
1701                                                                         for ( k = 0; k < map_channels; k++, j++, source_offset++, dest_offset++ )
1702                                                                         {
1703                                                                                 void *src = audio_buf_1 + source_offset * sample_bytes;
1704                                                                                 void *dest = audio_buf_2 + dest_offset * sample_bytes;
1705                                                                                 int s = samples + 1;
1706
1707                                                                                 while ( --s ) {
1708                                                                                         memcpy( dest, src, sample_bytes );
1709                                                                                         dest += current_channels * sample_bytes;
1710                                                                                         src += channels * sample_bytes;
1711                                                                                 }
1712                                                                         }
1713                                                                 }
1714                                                                 // Otherwise silence
1715                                                                 else
1716                                                                 {
1717                                                                         j += current_channels;
1718                                                                         dest_offset += current_channels;
1719                                                                 }
1720                                                         }
1721 #if LIBAVCODEC_VERSION_MAJOR >= 54
1722                                                         audio_avframe->nb_samples = FFMAX( samples, audio_input_nb_samples );
1723 #if LIBAVCODEC_VERSION_MAJOR >= 55
1724                                                         if ( audio_codec_id == AV_CODEC_ID_VORBIS )
1725                                                                 audio_avframe->pts = synth_audio_pts;
1726                                                         synth_audio_pts += audio_avframe->nb_samples;
1727 #endif
1728                                                         avcodec_fill_audio_frame( audio_avframe, codec->channels, codec->sample_fmt,
1729                                                                 (const uint8_t*) audio_buf_2, AUDIO_ENCODE_BUFFER_SIZE, 0 );
1730                                                         int got_packet = 0;
1731                                                         int ret = avcodec_encode_audio2( codec, &pkt, audio_avframe, &got_packet );
1732                                                         if ( ret < 0 )
1733                                                                 pkt.size = ret;
1734                                                         else if ( !got_packet )
1735                                                                 pkt.size = 0;
1736 #else
1737                                                         codec->frame_size = FFMAX( samples, audio_input_nb_samples );
1738                                                         pkt.size = avcodec_encode_audio( codec, audio_outbuf, audio_outbuf_size, (short*) audio_buf_2 );
1739                                                         pkt.pts = codec->coded_frame? codec->coded_frame->pts : AV_NOPTS_VALUE;
1740                                                         pkt.flags |= PKT_FLAG_KEY;
1741 #endif
1742                                                 }
1743
1744                                                 if ( pkt.size > 0 )
1745                                                 {
1746                                                         // Write the compressed frame in the media file
1747                                                         if ( pkt.pts != AV_NOPTS_VALUE )
1748                                                                 pkt.pts = av_rescale_q( pkt.pts, codec->time_base, stream->time_base );
1749 #if LIBAVCODEC_VERSION_MAJOR >= 55
1750                                                         if ( pkt.dts != AV_NOPTS_VALUE )
1751                                                                 pkt.dts = av_rescale_q( pkt.dts, codec->time_base, stream->time_base );
1752                                                         if ( pkt.duration > 0 )
1753                                                                 pkt.duration = av_rescale_q( pkt.duration, codec->time_base, stream->time_base );
1754 #endif
1755                                                         pkt.stream_index = stream->index;
1756                                                         if ( av_interleaved_write_frame( oc, &pkt ) )
1757                                                         {
1758                                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing audio frame\n" );
1759                                                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1760                                                                 goto on_fatal_error;
1761                                                         }
1762                                                         error_count = 0;
1763                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio stream %d pkt pts %"PRId64" frame_size %d stream pts %"PRId64"\n",
1764                                                                 stream->index, pkt.pts, codec->frame_size, stream->pts.val );
1765                                                 }
1766                                                 else if ( pkt.size < 0 )
1767                                                 {
1768                                                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with audio encode %d\n", frame_count );
1769                                                         if ( ++error_count > 2 )
1770                                                                 goto on_fatal_error;
1771                                                 }
1772
1773                                                 if ( i == 0 )
1774                                                 {
1775                                                         audio_pts = (double)stream->pts.val * av_q2d( stream->time_base );
1776                                                 }
1777                                         }
1778                                 }
1779                                 else
1780                                 {
1781                                         break;
1782                                 }
1783                         }
1784                         else if ( video_st )
1785                         {
1786                                 // Write video
1787                                 if ( mlt_deque_count( queue ) )
1788                                 {
1789                                         int ret = 0;
1790                                         AVCodecContext *c = video_st->codec;
1791
1792                                         frame = mlt_deque_pop_front( queue );
1793                                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1794
1795                                         if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1796                                         {
1797                                                 int i = 0;
1798                                                 uint8_t *p;
1799                                                 uint8_t *q;
1800                                                 int stride = mlt_image_format_size( img_fmt, width, 0, NULL );
1801
1802                                                 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1803                                                 q = image;
1804
1805                                                 // Convert the mlt frame to an AVPicture
1806                                                 if ( img_fmt == mlt_image_yuv420p )
1807                                                 {
1808                                                         memcpy( video_avframe->data[0], q, video_avframe->linesize[0] );
1809                                                         q += stride;
1810                                                         memcpy( video_avframe->data[1], q, video_avframe->linesize[1] );
1811                                                         q += stride / 4;
1812                                                         memcpy( video_avframe->data[2], q, video_avframe->linesize[2] );
1813                                                 }
1814                                                 else for ( i = 0; i < height; i ++ )
1815                                                 {
1816                                                         p = video_avframe->data[0] + i * video_avframe->linesize[0];
1817                                                         memcpy( p, q, stride );
1818                                                         q += stride;
1819                                                 }
1820
1821                                                 // Do the colour space conversion
1822                                                 int flags = SWS_BICUBIC;
1823 #ifdef USE_MMX
1824                                                 flags |= SWS_CPU_CAPS_MMX;
1825 #endif
1826 #ifdef USE_SSE
1827                                                 flags |= SWS_CPU_CAPS_MMX2;
1828 #endif
1829                                                 struct SwsContext *context = sws_getContext( width, height, pick_pix_fmt( img_fmt ),
1830                                                         width, height, c->pix_fmt, flags, NULL, NULL, NULL);
1831                                                 sws_scale( context, (const uint8_t* const*) video_avframe->data, video_avframe->linesize, 0, height,
1832                                                         converted_avframe->data, converted_avframe->linesize);
1833                                                 sws_freeContext( context );
1834
1835                                                 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1836
1837                                                 // Apply the alpha if applicable
1838                                                 if ( !mlt_properties_get( properties, "mlt_image_format" ) ||
1839                                                      strcmp( mlt_properties_get( properties, "mlt_image_format" ), "rgb24a" ) )
1840                                                 if ( c->pix_fmt == PIX_FMT_RGBA ||
1841                                                      c->pix_fmt == PIX_FMT_ARGB ||
1842                                                      c->pix_fmt == PIX_FMT_BGRA )
1843                                                 {
1844                                                         uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1845                                                         register int n;
1846
1847                                                         for ( i = 0; i < height; i ++ )
1848                                                         {
1849                                                                 n = ( width + 7 ) / 8;
1850                                                                 p = converted_avframe->data[ 0 ] + i * converted_avframe->linesize[ 0 ] + 3;
1851
1852                                                                 switch( width % 8 )
1853                                                                 {
1854                                                                         case 0: do { *p = *alpha++; p += 4;
1855                                                                         case 7:          *p = *alpha++; p += 4;
1856                                                                         case 6:          *p = *alpha++; p += 4;
1857                                                                         case 5:          *p = *alpha++; p += 4;
1858                                                                         case 4:          *p = *alpha++; p += 4;
1859                                                                         case 3:          *p = *alpha++; p += 4;
1860                                                                         case 2:          *p = *alpha++; p += 4;
1861                                                                         case 1:          *p = *alpha++; p += 4;
1862                                                                                         }
1863                                                                                         while( --n );
1864                                                                 }
1865                                                         }
1866                                                 }
1867                                         }
1868
1869                                         if (oc->oformat->flags & AVFMT_RAWPICTURE)
1870                                         {
1871                                                 // raw video case. The API will change slightly in the near future for that
1872                                                 AVPacket pkt;
1873                                                 av_init_packet(&pkt);
1874
1875                                                 // Set frame interlace hints
1876                                                 c->coded_frame->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1877                                                 c->coded_frame->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1878 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(61<<8)+100)
1879                                                 if ( mlt_properties_get_int( frame_properties, "progressive" ) )
1880                                                         c->field_order = AV_FIELD_PROGRESSIVE;
1881                                                 else
1882                                                         c->field_order = (mlt_properties_get_int( frame_properties, "top_field_first" )) ? AV_FIELD_TT : AV_FIELD_BB;
1883 #endif
1884                                                 pkt.flags |= PKT_FLAG_KEY;
1885                                                 pkt.stream_index = video_st->index;
1886                                                 pkt.data = (uint8_t *)converted_avframe;
1887                                                 pkt.size = sizeof(AVPicture);
1888
1889                                                 ret = av_write_frame(oc, &pkt);
1890                                                 video_pts += c->frame_size;
1891                                         }
1892                                         else
1893                                         {
1894                                                 AVPacket pkt;
1895                                                 av_init_packet( &pkt );
1896                                                 if ( c->codec->id == AV_CODEC_ID_RAWVIDEO ) {
1897                                                         pkt.data = NULL;
1898                                                         pkt.size = 0;
1899                                                 } else {
1900                                                         pkt.data = video_outbuf;
1901                                                         pkt.size = video_outbuf_size;
1902                                                 }
1903
1904                                                 // Set the quality
1905                                                 converted_avframe->quality = c->global_quality;
1906                                                 converted_avframe->pts = frame_count;
1907
1908                                                 // Set frame interlace hints
1909                                                 converted_avframe->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1910                                                 converted_avframe->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1911 #if LIBAVCODEC_VERSION_INT >= ((53<<16)+(61<<8)+100)
1912                                                 if ( mlt_properties_get_int( frame_properties, "progressive" ) )
1913                                                         c->field_order = AV_FIELD_PROGRESSIVE;
1914                                                 else if ( c->codec_id == AV_CODEC_ID_MJPEG )
1915                                                         c->field_order = (mlt_properties_get_int( frame_properties, "top_field_first" )) ? AV_FIELD_TT : AV_FIELD_BB;
1916                                                 else
1917                                                         c->field_order = (mlt_properties_get_int( frame_properties, "top_field_first" )) ? AV_FIELD_TB : AV_FIELD_BT;
1918 #endif
1919
1920                                                 // Encode the image
1921 #if LIBAVCODEC_VERSION_MAJOR >= 55
1922                                                 int got_packet;
1923                                                 ret = avcodec_encode_video2( c, &pkt, converted_avframe, &got_packet );
1924                                                 if ( ret < 0 )
1925                                                         pkt.size = ret;
1926                                                 else if ( !got_packet )
1927                                                         pkt.size = 0;
1928 #else
1929                                                 pkt.size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, converted_avframe );
1930                                                 pkt.pts = c->coded_frame? c->coded_frame->pts : AV_NOPTS_VALUE;
1931                                                 if ( c->coded_frame && c->coded_frame->key_frame )
1932                                                         pkt.flags |= PKT_FLAG_KEY;
1933 #endif
1934
1935                                                 // If zero size, it means the image was buffered
1936                                                 if ( pkt.size > 0 )
1937                                                 {
1938                                                         if ( pkt.pts != AV_NOPTS_VALUE )
1939                                                                 pkt.pts = av_rescale_q( pkt.pts, c->time_base, video_st->time_base );
1940 #if LIBAVCODEC_VERSION_MAJOR >= 55
1941                                                         if ( pkt.dts != AV_NOPTS_VALUE )
1942                                                                 pkt.dts = av_rescale_q( pkt.dts, c->time_base, video_st->time_base );
1943 #endif
1944                                                         pkt.stream_index = video_st->index;
1945
1946                                                         // write the compressed frame in the media file
1947                                                         ret = av_interleaved_write_frame(oc, &pkt);
1948                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), " frame_size %d\n", c->frame_size );
1949                                                         video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1950
1951                                                         // Dual pass logging
1952                                                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1953                                                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1954
1955                                                         error_count = 0;
1956                                                 }
1957                                                 else if ( pkt.size < 0 )
1958                                                 {
1959                                                         mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error with video encode %d\n", frame_count );
1960                                                         if ( ++error_count > 2 )
1961                                                                 goto on_fatal_error;
1962                                                         ret = 0;
1963                                                 }
1964                                         }
1965                                         frame_count++;
1966                                         if ( ret )
1967                                         {
1968                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( consumer ), "error writing video frame\n" );
1969                                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
1970                                                 goto on_fatal_error;
1971                                         }
1972                                         mlt_frame_close( frame );
1973                                         frame = NULL;
1974                                 }
1975                                 else
1976                                 {
1977                                         break;
1978                                 }
1979                         }
1980                         if ( audio_st[0] )
1981                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "audio pts %"PRId64" (%f) ", audio_st[0]->pts.val, audio_pts );
1982                         if ( video_st )
1983                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "video pts %"PRId64" (%f) ", video_st->pts.val, video_pts );
1984                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "\n" );
1985                 }
1986
1987                 if ( real_time_output == 1 && frames % 2 == 0 )
1988                 {
1989                         long passed = time_difference( &ante );
1990                         if ( fifo != NULL )
1991                         {
1992                                 long pending = ( ( ( long )sample_fifo_used( fifo ) / sample_bytes * 1000 ) / frequency ) * 1000;
1993                                 passed -= pending;
1994                         }
1995                         if ( passed < total_time )
1996                         {
1997                                 long total = ( total_time - passed );
1998                                 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1999                                 nanosleep( &t, NULL );
2000                         }
2001                 }
2002         }
2003
2004         // Flush the encoder buffers
2005         if ( real_time_output <= 0 )
2006         {
2007                 // Flush audio fifo
2008                 // TODO: flush all audio streams
2009                 if ( audio_st[0] && audio_st[0]->codec->frame_size > 1 ) for (;;)
2010                 {
2011                         AVCodecContext *c = audio_st[0]->codec;
2012                         AVPacket pkt;
2013                         av_init_packet( &pkt );
2014                         pkt.data = audio_outbuf;
2015                         pkt.size = 0;
2016
2017                         if ( fifo && sample_fifo_used( fifo ) > 0 )
2018                         {
2019                                 // Drain the MLT FIFO
2020                                 int samples = FFMIN( FFMIN( channels * audio_input_nb_samples, sample_fifo_used( fifo ) / sample_bytes ), AUDIO_ENCODE_BUFFER_SIZE );
2021                                 sample_fifo_fetch( fifo, audio_buf_1, samples * sample_bytes );
2022                                 void* p = audio_buf_1;
2023 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
2024                                 if ( c->sample_fmt == AV_SAMPLE_FMT_FLTP )
2025                                         p = interleaved_to_planar( audio_input_nb_samples, channels, p, sizeof( float ) );
2026                                 else if ( c->sample_fmt == AV_SAMPLE_FMT_S16P )
2027                                         p = interleaved_to_planar( audio_input_nb_samples, channels, p, sizeof( int16_t ) );
2028                                 else if ( c->sample_fmt == AV_SAMPLE_FMT_S32P )
2029                                         p = interleaved_to_planar( audio_input_nb_samples, channels, p, sizeof( int32_t ) );
2030                                 else if ( c->sample_fmt == AV_SAMPLE_FMT_U8P )
2031                                         p = interleaved_to_planar( audio_input_nb_samples, channels, p, sizeof( uint8_t ) );
2032 #endif
2033 #if LIBAVCODEC_VERSION_MAJOR >= 54
2034                                 pkt.size = audio_outbuf_size;
2035                                 audio_avframe->nb_samples = FFMAX( samples / channels, audio_input_nb_samples );
2036 #if LIBAVCODEC_VERSION_MAJOR >= 55
2037                                 if ( audio_codec_id == AV_CODEC_ID_VORBIS )
2038                                         audio_avframe->pts = synth_audio_pts;
2039                                 synth_audio_pts += audio_avframe->nb_samples;
2040 #endif
2041                                 avcodec_fill_audio_frame( audio_avframe, c->channels, c->sample_fmt,
2042                                         (const uint8_t*) p, AUDIO_ENCODE_BUFFER_SIZE, 0 );
2043                                 int got_packet = 0;
2044                                 int ret = avcodec_encode_audio2( c, &pkt, audio_avframe, &got_packet );
2045                                 if ( ret < 0 )
2046                                         pkt.size = ret;
2047                                 else if ( !got_packet )
2048                                         pkt.size = 0;
2049 #else
2050                                 c->frame_size = FFMAX( samples / channels, audio_input_nb_samples );
2051                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, p );
2052 #endif
2053 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(17<<8)+0)
2054                                 if ( p != audio_buf_1 )
2055                                         mlt_pool_release( p );
2056 #endif
2057                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
2058                         }
2059                         else
2060                         {
2061                                 // Drain the codec
2062                                 if ( pkt.size <= 0 ) {
2063 #if LIBAVCODEC_VERSION_MAJOR >= 54
2064                                         pkt.size = audio_outbuf_size;
2065                                         int got_packet = 0;
2066                                         int ret = avcodec_encode_audio2( c, &pkt, NULL, &got_packet );
2067                                         if ( ret < 0 )
2068                                                 pkt.size = ret;
2069                                         else if ( !got_packet )
2070                                                 pkt.size = 0;
2071 #else
2072                                         pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
2073                                         pkt.pts = c->coded_frame? c->coded_frame->pts : AV_NOPTS_VALUE;
2074                                         pkt.flags |= PKT_FLAG_KEY;
2075 #endif
2076                                 }
2077                                 mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing audio size %d\n", pkt.size );
2078                                 if ( pkt.size <= 0 )
2079                                         break;
2080                         }
2081
2082                         // Write the compressed frame in the media file
2083                         if ( pkt.pts != AV_NOPTS_VALUE )
2084                                 pkt.pts = av_rescale_q( pkt.pts, c->time_base, audio_st[0]->time_base );
2085 #if LIBAVCODEC_VERSION_MAJOR >= 55
2086                         if ( pkt.dts != AV_NOPTS_VALUE )
2087                                 pkt.dts = av_rescale_q( pkt.dts, c->time_base, audio_st[0]->time_base );
2088                         if ( pkt.duration > 0 )
2089                                 pkt.duration = av_rescale_q( pkt.duration, c->time_base, audio_st[0]->time_base );
2090 #endif
2091                         pkt.stream_index = audio_st[0]->index;
2092                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
2093                         {
2094                                 mlt_log_warning( MLT_CONSUMER_SERVICE( consumer ), "error writing flushed audio frame\n" );
2095                                 break;
2096                         }
2097                 }
2098
2099                 // Flush video
2100                 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
2101                 {
2102                         AVCodecContext *c = video_st->codec;
2103                         AVPacket pkt;
2104                         av_init_packet( &pkt );
2105                         if ( c->codec->id == AV_CODEC_ID_RAWVIDEO ) {
2106                                 pkt.data = NULL;
2107                                 pkt.size = 0;
2108                         } else {
2109                                 pkt.data = video_outbuf;
2110                                 pkt.size = video_outbuf_size;
2111                         }
2112
2113                         // Encode the image
2114 #if LIBAVCODEC_VERSION_MAJOR >= 55
2115                         int got_packet = 0;
2116                         int ret = avcodec_encode_video2( c, &pkt, NULL, &got_packet );
2117                         if ( ret < 0 )
2118                                 pkt.size = ret;
2119                         else if ( !got_packet )
2120                                 pkt.size = 0;
2121 #else
2122                         pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
2123                         pkt.pts = c->coded_frame? c->coded_frame->pts : AV_NOPTS_VALUE;
2124                         if( c->coded_frame && c->coded_frame->key_frame )
2125                                 pkt.flags |= PKT_FLAG_KEY;
2126 #endif
2127                         mlt_log_debug( MLT_CONSUMER_SERVICE( consumer ), "flushing video size %d\n", pkt.size );
2128                         if ( pkt.size <= 0 )
2129                                 break;
2130
2131                         if ( pkt.pts != AV_NOPTS_VALUE )
2132                                 pkt.pts = av_rescale_q( pkt.pts, c->time_base, video_st->time_base );
2133 #if LIBAVCODEC_VERSION_MAJOR >= 55
2134                         if ( pkt.dts != AV_NOPTS_VALUE )
2135                                 pkt.dts = av_rescale_q( pkt.dts, c->time_base, video_st->time_base );
2136 #endif
2137                         pkt.stream_index = video_st->index;
2138
2139                         // write the compressed frame in the media file
2140                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
2141                         {
2142                                 mlt_log_fatal( MLT_CONSUMER_SERVICE(consumer), "error writing flushed video frame\n" );
2143                                 mlt_events_fire( properties, "consumer-fatal-error", NULL );
2144                                 goto on_fatal_error;
2145                         }
2146                         // Dual pass logging
2147                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
2148                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
2149                 }
2150         }
2151
2152 on_fatal_error:
2153
2154         if ( frame )
2155                 mlt_frame_close( frame );
2156
2157         // Write the trailer, if any
2158         if ( frames )
2159                 av_write_trailer( oc );
2160
2161         // close each codec
2162         if ( video_st )
2163                 close_video(oc, video_st);
2164         for ( i = 0; i < MAX_AUDIO_STREAMS && audio_st[i]; i++ )
2165                 close_audio( oc, audio_st[i] );
2166
2167         // Free the streams
2168         for ( i = 0; i < oc->nb_streams; i++ )
2169                 av_freep( &oc->streams[i] );
2170
2171         // Close the output file
2172         if ( !( fmt->flags & AVFMT_NOFILE ) &&
2173                 !mlt_properties_get_int( properties, "redirect" ) )
2174         {
2175 #if LIBAVFORMAT_VERSION_MAJOR >= 53
2176                 if ( oc->pb  ) avio_close( oc->pb );
2177 #else
2178                 if ( oc->pb  ) url_fclose( oc->pb );
2179 #endif
2180         }
2181
2182         // Clean up input and output frames
2183         if ( converted_avframe )
2184                 av_free( converted_avframe->data[0] );
2185         av_free( converted_avframe );
2186         av_free( video_avframe->data[0] );
2187         av_free( video_avframe );
2188         av_free( video_outbuf );
2189         av_free( audio_avframe );
2190         av_free( audio_buf_1 );
2191         av_free( audio_buf_2 );
2192
2193         // Free the stream
2194         av_free( oc );
2195
2196         // Just in case we terminated on pause
2197         mlt_consumer_stopped( consumer );
2198         mlt_properties_close( frame_meta_properties );
2199
2200         if ( mlt_properties_get_int( properties, "pass" ) > 1 )
2201         {
2202                 // Remove the dual pass log file
2203                 if ( mlt_properties_get( properties, "_logfilename" ) )
2204                         remove( mlt_properties_get( properties, "_logfilename" ) );
2205
2206                 // Remove the x264 dual pass logs
2207                 char *cwd = getcwd( NULL, 0 );
2208                 const char *file = "x264_2pass.log";
2209                 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2210                 sprintf( full, "%s/%s", cwd, file );
2211                 remove( full );
2212                 free( full );
2213                 file = "x264_2pass.log.temp";
2214                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2215                 sprintf( full, "%s/%s", cwd, file );
2216                 remove( full );
2217                 free( full );
2218                 file = "x264_2pass.log.mbtree";
2219                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
2220                 sprintf( full, "%s/%s", cwd, file );
2221                 remove( full );
2222                 free( full );
2223                 free( cwd );
2224                 remove( "x264_2pass.log.temp" );
2225
2226                 // Recent versions of libavcodec/x264 support passlogfile and need cleanup if specified.
2227                 if ( !mlt_properties_get( properties, "_logfilename" ) &&
2228                       mlt_properties_get( properties, "passlogfile" ) )
2229                 {
2230                         file = mlt_properties_get( properties, "passlogfile" );
2231                         remove( file );
2232                         full = malloc( strlen( file ) + strlen( ".mbtree" ) + 1 );
2233                         sprintf( full, "%s.mbtree", file );
2234                         remove( full );
2235                         free( full );
2236                 }
2237         }
2238
2239         while ( ( frame = mlt_deque_pop_back( queue ) ) )
2240                 mlt_frame_close( frame );
2241
2242         return NULL;
2243 }
2244
2245 /** Close the consumer.
2246 */
2247
2248 static void consumer_close( mlt_consumer consumer )
2249 {
2250         // Stop the consumer
2251         mlt_consumer_stop( consumer );
2252
2253         // Close the parent
2254         mlt_consumer_close( consumer );
2255
2256         // Free the memory
2257         free( consumer );
2258 }