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

   1 /*
   2  * consumer_avformat.c -- an encoder based on avformat
   3  * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
   4  * Author: Charles Yates <charles.yates@pandora.be>
   5  * Much code borrowed from ffmpeg.c: Copyright (c) 2000-2003 Fabrice Bellard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 // mlt Header files
  23 #include <framework/mlt_consumer.h>
  24 #include <framework/mlt_frame.h>
  25 #include <framework/mlt_profile.h>
  26 #include <framework/mlt_log.h>
  27
  28 // System header files
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <limits.h>
  33 #include <pthread.h>
  34 #include <sys/time.h>
  35 #include <unistd.h>
  36
  37 // avformat header files
  38 #include <avformat.h>
  39 #ifdef SWSCALE
  40 #include <swscale.h>
  41 #endif
  42 #include <opt.h>
  43
  44 #if LIBAVUTIL_VERSION_INT < (50<<16)
  45 #define PIX_FMT_RGB32 PIX_FMT_RGBA32
  46 #define PIX_FMT_YUYV422 PIX_FMT_YUV422
  47 #endif
  48
  49 //
  50 // This structure should be extended and made globally available in mlt
  51 //
  52
  53 typedef struct
  54 {
  55         int16_t *buffer;
  56         int size;
  57         int used;
  58         double time;
  59         int frequency;
  60         int channels;
  61 }
  62 *sample_fifo, sample_fifo_s;
  63
  64 sample_fifo sample_fifo_init( int frequency, int channels )
  65 {
  66         sample_fifo this = calloc( 1, sizeof( sample_fifo_s ) );
  67         this->frequency = frequency;
  68         this->channels = channels;
  69         return this;
  70 }
  71
  72 // sample_fifo_clear and check are temporarily aborted (not working as intended)
  73
  74 void sample_fifo_clear( sample_fifo this, double time )
  75 {
  76         int words = ( float )( time - this->time ) * this->frequency * this->channels;
  77         if ( ( int )( ( float )time * 100 ) < ( int )( ( float )this->time * 100 ) && this->used > words && words > 0 )
  78         {
  79                 memmove( this->buffer, &this->buffer[ words ], ( this->used - words ) * sizeof( int16_t ) );
  80                 this->used -= words;
  81                 this->time = time;
  82         }
  83         else if ( ( int )( ( float )time * 100 ) != ( int )( ( float )this->time * 100 ) )
  84         {
  85                 this->used = 0;
  86                 this->time = time;
  87         }
  88 }
  89
  90 void sample_fifo_check( sample_fifo this, double time )
  91 {
  92         if ( this->used == 0 )
  93         {
  94                 if ( ( int )( ( float )time * 100 ) < ( int )( ( float )this->time * 100 ) )
  95                         this->time = time;
  96         }
  97 }
  98
  99 void sample_fifo_append( sample_fifo this, int16_t *samples, int count )
 100 {
 101         if ( ( this->size - this->used ) < count )
 102         {
 103                 this->size += count * 5;
 104                 this->buffer = realloc( this->buffer, this->size * sizeof( int16_t ) );
 105         }
 106
 107         memcpy( &this->buffer[ this->used ], samples, count * sizeof( int16_t ) );
 108         this->used += count;
 109 }
 110
 111 int sample_fifo_used( sample_fifo this )
 112 {
 113         return this->used;
 114 }
 115
 116 int sample_fifo_fetch( sample_fifo this, int16_t *samples, int count )
 117 {
 118         if ( count > this->used )
 119                 count = this->used;
 120
 121         memcpy( samples, this->buffer, count * sizeof( int16_t ) );
 122         this->used -= count;
 123         memmove( this->buffer, &this->buffer[ count ], this->used * sizeof( int16_t ) );
 124
 125         this->time += ( double )count / this->channels / this->frequency;
 126
 127         return count;
 128 }
 129
 130 void sample_fifo_close( sample_fifo this )
 131 {
 132         free( this->buffer );
 133         free( this );
 134 }
 135
 136 // Forward references.
 137 static int consumer_start( mlt_consumer this );
 138 static int consumer_stop( mlt_consumer this );
 139 static int consumer_is_stopped( mlt_consumer this );
 140 static void *consumer_thread( void *arg );
 141 static void consumer_close( mlt_consumer this );
 142
 143 /** Initialise the dv consumer.
 144 */
 145
 146 mlt_consumer consumer_avformat_init( mlt_profile profile, char *arg )
 147 {
 148         // Allocate the consumer
 149         mlt_consumer this = mlt_consumer_new( profile );
 150
 151         // If memory allocated and initialises without error
 152         if ( this != NULL )
 153         {
 154                 // Get properties from the consumer
 155                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 156
 157                 // Assign close callback
 158                 this->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                 this->start = consumer_start;
 187                 this->stop = consumer_stop;
 188                 this->is_stopped = consumer_is_stopped;
 189         }
 190
 191         // Return this
 192         return this;
 193 }
 194
 195 /** Start the consumer.
 196 */
 197
 198 static int consumer_start( mlt_consumer this )
 199 {
 200         // Get the properties
 201         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 202         int error = 0;
 203
 204         // Report information about available muxers and codecs as YAML Tiny
 205         char *s = mlt_properties_get( properties, "f" );
 206         if ( s && strcmp( s, "list" ) == 0 )
 207         {
 208                 fprintf( stderr, "---\nformats:\n" );
 209                 AVOutputFormat *format = NULL;
 210                 while ( ( format = av_oformat_next( format ) ) )
 211                         fprintf( stderr, "  - %s\n", format->name );
 212                 fprintf( stderr, "...\n" );
 213                 error = 1;
 214         }
 215         s = mlt_properties_get( properties, "acodec" );
 216         if ( s && strcmp( s, "list" ) == 0 )
 217         {
 218                 fprintf( stderr, "---\naudio_codecs:\n" );
 219                 AVCodec *codec = NULL;
 220                 while ( ( codec = av_codec_next( codec ) ) )
 221                         if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
 222                                 fprintf( stderr, "  - %s\n", codec->name );
 223                 fprintf( stderr, "...\n" );
 224                 error = 1;
 225         }
 226         s = mlt_properties_get( properties, "vcodec" );
 227         if ( s && strcmp( s, "list" ) == 0 )
 228         {
 229                 fprintf( stderr, "---\nvideo_codecs:\n" );
 230                 AVCodec *codec = NULL;
 231                 while ( ( codec = av_codec_next( codec ) ) )
 232                         if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
 233                                 fprintf( stderr, "  - %s\n", codec->name );
 234                 fprintf( stderr, "...\n" );
 235                 error = 1;
 236         }
 237
 238         // Check that we're not already running
 239         if ( !error && !mlt_properties_get_int( properties, "running" ) )
 240         {
 241                 // Allocate a thread
 242                 pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
 243
 244                 // Get the width and height
 245                 int width = mlt_properties_get_int( properties, "width" );
 246                 int height = mlt_properties_get_int( properties, "height" );
 247
 248                 // Obtain the size property
 249                 char *size = mlt_properties_get( properties, "s" );
 250
 251                 // Interpret it
 252                 if ( size != NULL )
 253                 {
 254                         int tw, th;
 255                         if ( sscanf( size, "%dx%d", &tw, &th ) == 2 && tw > 0 && th > 0 )
 256                         {
 257                                 width = tw;
 258                                 height = th;
 259                         }
 260                         else
 261                         {
 262                                 mlt_log_warning( MLT_CONSUMER_SERVICE( this ), "Invalid size property %s - ignoring.\n", size );
 263                         }
 264                 }
 265
 266                 // Now ensure we honour the multiple of two requested by libavformat
 267                 width = ( width / 2 ) * 2;
 268                 height = ( height / 2 ) * 2;
 269                 mlt_properties_set_int( properties, "width", width );
 270                 mlt_properties_set_int( properties, "height", height );
 271
 272                 // We need to set these on the profile as well because the s property is
 273                 // an alias to mlt properties that correspond to profile settings.
 274                 mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
 275                 if ( profile )
 276                 {
 277                         profile->width = width;
 278                         profile->height = height;
 279                 }
 280
 281                 // Handle the ffmpeg command line "-r" property for frame rate
 282                 if ( mlt_properties_get( properties, "r" ) )
 283                 {
 284                         double frame_rate = mlt_properties_get_double( properties, "r" );
 285                         AVRational rational = av_d2q( frame_rate, 255 );
 286                         mlt_properties_set_int( properties, "frame_rate_num", rational.num );
 287                         mlt_properties_set_int( properties, "frame_rate_den", rational.den );
 288                         if ( profile )
 289                         {
 290                                 profile->frame_rate_num = rational.num;
 291                                 profile->frame_rate_den = rational.den;
 292                                 mlt_properties_set_double( properties, "fps", mlt_profile_fps( profile ) );
 293                         }
 294                 }
 295
 296                 // Apply AVOptions that are synonyms for standard mlt_consumer options
 297                 if ( mlt_properties_get( properties, "ac" ) )
 298                         mlt_properties_set_int( properties, "channels", mlt_properties_get_int( properties, "ac" ) );
 299                 if ( mlt_properties_get( properties, "ar" ) )
 300                         mlt_properties_set_int( properties, "frequency", mlt_properties_get_int( properties, "ar" ) );
 301
 302                 // Assign the thread to properties
 303                 mlt_properties_set_data( properties, "thread", thread, sizeof( pthread_t ), free, NULL );
 304
 305                 // Set the running state
 306                 mlt_properties_set_int( properties, "running", 1 );
 307
 308                 // Create the thread
 309                 pthread_create( thread, NULL, consumer_thread, this );
 310         }
 311         return error;
 312 }
 313
 314 /** Stop the consumer.
 315 */
 316
 317 static int consumer_stop( mlt_consumer this )
 318 {
 319         // Get the properties
 320         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 321
 322         // Check that we're running
 323         if ( mlt_properties_get_int( properties, "running" ) )
 324         {
 325                 // Get the thread
 326                 pthread_t *thread = mlt_properties_get_data( properties, "thread", NULL );
 327
 328                 // Stop the thread
 329                 mlt_properties_set_int( properties, "running", 0 );
 330
 331                 // Wait for termination
 332                 pthread_join( *thread, NULL );
 333         }
 334
 335         return 0;
 336 }
 337
 338 /** Determine if the consumer is stopped.
 339 */
 340
 341 static int consumer_is_stopped( mlt_consumer this )
 342 {
 343         // Get the properties
 344         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 345         return !mlt_properties_get_int( properties, "running" );
 346 }
 347
 348 /** Process properties as AVOptions and apply to AV context obj
 349 */
 350
 351 static void apply_properties( void *obj, mlt_properties properties, int flags )
 352 {
 353         int i;
 354         int count = mlt_properties_count( properties );
 355         for ( i = 0; i < count; i++ )
 356         {
 357                 const char *opt_name = mlt_properties_get_name( properties, i );
 358                 const AVOption *opt = av_find_opt( obj, opt_name, NULL, flags, flags );
 359                 if ( opt != NULL )
 360 #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(7<<8)+0)
 361                         av_set_string3( obj, opt_name, mlt_properties_get( properties, opt_name), 0, NULL );
 362 #elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(59<<8)+0)
 363                         av_set_string2( obj, opt_name, mlt_properties_get( properties, opt_name), 0 );
 364 #else
 365                         av_set_string( obj, opt_name, mlt_properties_get( properties, opt_name) );
 366 #endif
 367         }
 368 }
 369
 370 /** Add an audio output stream
 371 */
 372
 373 static AVStream *add_audio_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
 374 {
 375         // Get the properties
 376         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 377
 378         // Create a new stream
 379         AVStream *st = av_new_stream( oc, 1 );
 380
 381         // If created, then initialise from properties
 382         if ( st != NULL )
 383         {
 384                 AVCodecContext *c = st->codec;
 385
 386                 // Establish defaults from AVOptions
 387                 avcodec_get_context_defaults2( c, CODEC_TYPE_AUDIO );
 388
 389                 c->codec_id = codec_id;
 390                 c->codec_type = CODEC_TYPE_AUDIO;
 391
 392                 // Setup multi-threading
 393                 int thread_count = mlt_properties_get_int( properties, "threads" );
 394                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 395                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 396                 if ( thread_count > 1 )
 397                         avcodec_thread_init( c, thread_count );
 398
 399                 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 400                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 401
 402                 // Allow the user to override the audio fourcc
 403                 if ( mlt_properties_get( properties, "atag" ) )
 404                 {
 405                         char *tail = NULL;
 406                         char *arg = mlt_properties_get( properties, "atag" );
 407                         int tag = strtol( arg, &tail, 0);
 408                         if( !tail || *tail )
 409                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 410                         c->codec_tag = tag;
 411                 }
 412
 413                 // Process properties as AVOptions
 414                 apply_properties( c, properties, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 415
 416                 int audio_qscale = mlt_properties_get_int( properties, "aq" );
 417         if ( audio_qscale > QSCALE_NONE )
 418                 {
 419                         c->flags |= CODEC_FLAG_QSCALE;
 420                         c->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
 421                 }
 422
 423                 // Set parameters controlled by MLT
 424                 c->sample_rate = mlt_properties_get_int( properties, "frequency" );
 425                 c->time_base = ( AVRational ){ 1, c->sample_rate };
 426                 c->channels = mlt_properties_get_int( properties, "channels" );
 427
 428                 if ( mlt_properties_get( properties, "alang" ) != NULL )
 429                         strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
 430         }
 431         else
 432         {
 433                 mlt_log_error( MLT_CONSUMER_SERVICE( this ), "Could not allocate a stream for audio\n" );
 434         }
 435
 436         return st;
 437 }
 438
 439 static int open_audio( AVFormatContext *oc, AVStream *st, int audio_outbuf_size )
 440 {
 441         // We will return the audio input size from here
 442         int audio_input_frame_size = 0;
 443
 444         // Get the context
 445         AVCodecContext *c = st->codec;
 446
 447         // Find the encoder
 448         AVCodec *codec = avcodec_find_encoder( c->codec_id );
 449
 450         // Continue if codec found and we can open it
 451         if ( codec != NULL && avcodec_open( c, codec ) >= 0 )
 452         {
 453                 // ugly hack for PCM codecs (will be removed ASAP with new PCM
 454                 // support to compute the input frame size in samples
 455                 if ( c->frame_size <= 1 )
 456                 {
 457                         audio_input_frame_size = audio_outbuf_size / c->channels;
 458                         switch(st->codec->codec_id)
 459                         {
 460                                 case CODEC_ID_PCM_S16LE:
 461                                 case CODEC_ID_PCM_S16BE:
 462                                 case CODEC_ID_PCM_U16LE:
 463                                 case CODEC_ID_PCM_U16BE:
 464                                         audio_input_frame_size >>= 1;
 465                                         break;
 466                                 default:
 467                                         break;
 468                         }
 469                 }
 470                 else
 471                 {
 472                         audio_input_frame_size = c->frame_size;
 473                 }
 474
 475                 // Some formats want stream headers to be seperate (hmm)
 476                 if ( !strcmp( oc->oformat->name, "mp4" ) ||
 477                          !strcmp( oc->oformat->name, "mov" ) ||
 478                          !strcmp( oc->oformat->name, "3gp" ) )
 479                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 480         }
 481         else
 482         {
 483                 mlt_log_warning( NULL, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
 484         }
 485
 486         return audio_input_frame_size;
 487 }
 488
 489 static void close_audio( AVFormatContext *oc, AVStream *st )
 490 {
 491         if ( st && st->codec )
 492         {
 493                 if ( st->codec->thread_count > 1 )
 494                         avcodec_thread_free( st->codec );
 495                 avcodec_close( st->codec );
 496         }
 497 }
 498
 499 /** Add a video output stream
 500 */
 501
 502 static AVStream *add_video_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
 503 {
 504         // Get the properties
 505         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 506
 507         // Create a new stream
 508         AVStream *st = av_new_stream( oc, 0 );
 509
 510         if ( st != NULL )
 511         {
 512                 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
 513                 AVCodecContext *c = st->codec;
 514
 515                 // Establish defaults from AVOptions
 516                 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
 517
 518                 c->codec_id = codec_id;
 519                 c->codec_type = CODEC_TYPE_VIDEO;
 520
 521                 // Setup multi-threading
 522                 int thread_count = mlt_properties_get_int( properties, "threads" );
 523                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 524                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 525                 if ( thread_count > 1 )
 526                         avcodec_thread_init( c, thread_count );
 527
 528                 // Process properties as AVOptions
 529                 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 530
 531                 // Set options controlled by MLT
 532                 c->width = mlt_properties_get_int( properties, "width" );
 533                 c->height = mlt_properties_get_int( properties, "height" );
 534                 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
 535                 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
 536                 if ( st->time_base.den == 0 )
 537                         st->time_base = c->time_base;
 538                 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 539
 540                 if ( mlt_properties_get( properties, "aspect" ) )
 541                 {
 542                         // "-aspect" on ffmpeg command line is display aspect ratio
 543                         double ar = mlt_properties_get_double( properties, "aspect" );
 544                         AVRational rational = av_d2q( ar, 255 );
 545
 546                         // Update the profile and properties as well since this is an alias
 547                         // for mlt properties that correspond to profile settings
 548                         mlt_properties_set_int( properties, "display_aspect_num", rational.num );
 549                         mlt_properties_set_int( properties, "display_aspect_den", rational.den );
 550                         mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
 551                         if ( profile )
 552                         {
 553                                 profile->display_aspect_num = rational.num;
 554                                 profile->display_aspect_den = rational.den;
 555                                 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
 556                         }
 557
 558                         // Now compute the sample aspect ratio
 559                         rational = av_d2q( ar * c->height / c->width, 255 );
 560                         c->sample_aspect_ratio = rational;
 561                         // Update the profile and properties as well since this is an alias
 562                         // for mlt properties that correspond to profile settings
 563                         mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
 564                         mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
 565                         if ( profile )
 566                         {
 567                                 profile->sample_aspect_num = rational.num;
 568                                 profile->sample_aspect_den = rational.den;
 569                                 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
 570                         }
 571                 }
 572                 else
 573                 {
 574                         c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
 575                         c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
 576                 }
 577 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 578                 st->sample_aspect_ratio = c->sample_aspect_ratio;
 579 #endif
 580
 581                 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
 582                 {
 583                         c->flags |= CODEC_FLAG_QSCALE;
 584                         st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
 585                 }
 586
 587                 // Allow the user to override the video fourcc
 588                 if ( mlt_properties_get( properties, "vtag" ) )
 589                 {
 590                         char *tail = NULL;
 591                         const char *arg = mlt_properties_get( properties, "vtag" );
 592                         int tag = strtol( arg, &tail, 0);
 593                         if( !tail || *tail )
 594                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 595                         c->codec_tag = tag;
 596                 }
 597
 598                 // Some formats want stream headers to be seperate
 599                 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
 600                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 601
 602                 // Translate these standard mlt consumer properties to ffmpeg
 603                 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
 604                      mlt_properties_get_int( properties, "deinterlace" ) == 0 )
 605                 {
 606                         if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
 607                                 c->flags |= CODEC_FLAG_INTERLACED_DCT;
 608                         if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
 609                                 c->flags |= CODEC_FLAG_INTERLACED_ME;
 610                 }
 611
 612                 // parse the ratecontrol override string
 613                 int i;
 614                 char *rc_override = mlt_properties_get( properties, "rc_override" );
 615                 for ( i = 0; rc_override; i++ )
 616                 {
 617                         int start, end, q;
 618                         int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
 619                         if ( e != 3 )
 620                                 mlt_log_warning( MLT_CONSUMER_SERVICE( this ), "Error parsing rc_override\n" );
 621                         c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
 622                         c->rc_override[i].start_frame = start;
 623                         c->rc_override[i].end_frame = end;
 624                         if ( q > 0 )
 625                         {
 626                                 c->rc_override[i].qscale = q;
 627                                 c->rc_override[i].quality_factor = 1.0;
 628                         }
 629                         else
 630                         {
 631                                 c->rc_override[i].qscale = 0;
 632                                 c->rc_override[i].quality_factor = -q / 100.0;
 633                         }
 634                         rc_override = strchr( rc_override, '/' );
 635                         if ( rc_override )
 636                                 rc_override++;
 637                 }
 638                 c->rc_override_count = i;
 639                 if ( !c->rc_initial_buffer_occupancy )
 640                         c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
 641                 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
 642
 643                 // Setup dual-pass
 644                 i = mlt_properties_get_int( properties, "pass" );
 645                 if ( i == 1 )
 646                         c->flags |= CODEC_FLAG_PASS1;
 647                 else if ( i == 2 )
 648                         c->flags |= CODEC_FLAG_PASS2;
 649                 if ( codec_id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
 650                 {
 651                         char logfilename[1024];
 652                         FILE *f;
 653                         int size;
 654                         char *logbuffer;
 655
 656                         snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
 657                                 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
 658                         if ( c->flags & CODEC_FLAG_PASS1 )
 659                         {
 660                                 f = fopen( logfilename, "w" );
 661                                 if ( !f )
 662                                         perror( logfilename );
 663                                 else
 664                                         mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
 665                         }
 666                         else
 667                         {
 668                                 /* read the log file */
 669                                 f = fopen( logfilename, "r" );
 670                                 if ( !f )
 671                                 {
 672                                         perror(logfilename);
 673                                 }
 674                                 else
 675                                 {
 676                                         mlt_properties_set( properties, "_logfilename", logfilename );
 677                                         fseek( f, 0, SEEK_END );
 678                                         size = ftell( f );
 679                                         fseek( f, 0, SEEK_SET );
 680                                         logbuffer = av_malloc( size + 1 );
 681                                         if ( !logbuffer )
 682                                                 mlt_log_fatal( MLT_CONSUMER_SERVICE( this ), "Could not allocate log buffer\n" );
 683                                         else
 684                                         {
 685                                                 size = fread( logbuffer, 1, size, f );
 686                                                 fclose( f );
 687                                                 logbuffer[size] = '\0';
 688                                                 c->stats_in = logbuffer;
 689                                                 mlt_properties_set_data( properties, "_logbuffer", logbuffer, 0, ( mlt_destructor )av_free, NULL );
 690                                         }
 691                                 }
 692                         }
 693                 }
 694         }
 695         else
 696         {
 697                 mlt_log_error( MLT_CONSUMER_SERVICE( this ), "Could not allocate a stream for video\n" );
 698         }
 699
 700         return st;
 701 }
 702
 703 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
 704 {
 705         // Allocate a frame
 706         AVFrame *picture = avcodec_alloc_frame();
 707
 708         // Determine size of the
 709         int size = avpicture_get_size(pix_fmt, width, height);
 710
 711         // Allocate the picture buf
 712         uint8_t *picture_buf = av_malloc(size);
 713
 714         // If we have both, then fill the image
 715         if ( picture != NULL && picture_buf != NULL )
 716         {
 717                 // Fill the frame with the allocated buffer
 718                 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
 719         }
 720         else
 721         {
 722                 // Something failed - clean up what we can
 723                 av_free( picture );
 724                 av_free( picture_buf );
 725                 picture = NULL;
 726         }
 727
 728         return picture;
 729 }
 730
 731 static int open_video(AVFormatContext *oc, AVStream *st)
 732 {
 733         // Get the codec
 734         AVCodecContext *video_enc = st->codec;
 735
 736         // find the video encoder
 737         AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
 738
 739         if( codec && codec->pix_fmts )
 740         {
 741                 const enum PixelFormat *p = codec->pix_fmts;
 742                 for( ; *p!=-1; p++ )
 743                 {
 744                         if( *p == video_enc->pix_fmt )
 745                                 break;
 746                 }
 747                 if( *p == -1 )
 748                         video_enc->pix_fmt = codec->pix_fmts[ 0 ];
 749         }
 750
 751         // Open the codec safely
 752         return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
 753 }
 754
 755 void close_video(AVFormatContext *oc, AVStream *st)
 756 {
 757         if ( st && st->codec )
 758         {
 759                 if ( st->codec->thread_count > 1 )
 760                 {
 761                         if ( st->codec->codec_id == CODEC_ID_H264 )
 762                                 // XXX: Some versions of x264 are crashing on close when using multiple threads
 763                                 return;
 764                         else
 765                                 avcodec_thread_free( st->codec );
 766                 }
 767                 avcodec_close(st->codec);
 768         }
 769 }
 770
 771 static inline long time_difference( struct timeval *time1 )
 772 {
 773         struct timeval time2;
 774         gettimeofday( &time2, NULL );
 775         return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
 776 }
 777
 778 /** The main thread - the argument is simply the consumer.
 779 */
 780
 781 static void *consumer_thread( void *arg )
 782 {
 783         // Map the argument to the object
 784         mlt_consumer this = arg;
 785
 786         // Get the properties
 787         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 788
 789         // Get the terminate on pause property
 790         int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
 791         int terminated = 0;
 792
 793         // Determine if feed is slow (for realtime stuff)
 794         int real_time_output = mlt_properties_get_int( properties, "real_time" );
 795
 796         // Time structures
 797         struct timeval ante;
 798
 799         // Get the frame rate
 800         double fps = mlt_properties_get_double( properties, "fps" );
 801
 802         // Get width and height
 803         int width = mlt_properties_get_int( properties, "width" );
 804         int height = mlt_properties_get_int( properties, "height" );
 805         int img_width = width;
 806         int img_height = height;
 807
 808         // Get default audio properties
 809         mlt_audio_format aud_fmt = mlt_audio_s16;
 810         int channels = mlt_properties_get_int( properties, "channels" );
 811         int frequency = mlt_properties_get_int( properties, "frequency" );
 812         int16_t *pcm = NULL;
 813         int samples = 0;
 814
 815         // AVFormat audio buffer and frame size
 816         int audio_outbuf_size = ( 1024 * 42 );
 817         uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
 818         int audio_input_frame_size = 0;
 819
 820         // AVFormat video buffer and frame count
 821         int frame_count = 0;
 822         int video_outbuf_size = ( 1024 * 1024 );
 823         uint8_t *video_outbuf = av_malloc( video_outbuf_size );
 824
 825         // Used for the frame properties
 826         mlt_frame frame = NULL;
 827         mlt_properties frame_properties = NULL;
 828
 829         // Get the queues
 830         mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
 831         sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
 832
 833         // Need two av pictures for converting
 834         AVFrame *output = NULL;
 835         AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
 836
 837         // For receiving images from an mlt_frame
 838         uint8_t *image;
 839         mlt_image_format img_fmt = mlt_image_yuv422;
 840
 841         // For receiving audio samples back from the fifo
 842         int16_t *buffer = av_malloc( 48000 * 2 );
 843         int count = 0;
 844
 845         // Allocate the context
 846 #if (LIBAVFORMAT_VERSION_INT >= ((52<<16)+(26<<8)+0))
 847         AVFormatContext *oc = avformat_alloc_context( );
 848 #else
 849         AVFormatContext *oc = av_alloc_format_context( );
 850 #endif
 851
 852         // Streams
 853         AVStream *audio_st = NULL;
 854         AVStream *video_st = NULL;
 855
 856         // Time stamps
 857         double audio_pts = 0;
 858         double video_pts = 0;
 859
 860         // Loop variable
 861         int i;
 862
 863         // Frames despatched
 864         long int frames = 0;
 865         long int total_time = 0;
 866
 867         // Determine the format
 868         AVOutputFormat *fmt = NULL;
 869         const char *filename = mlt_properties_get( properties, "target" );
 870         char *format = mlt_properties_get( properties, "f" );
 871         char *vcodec = mlt_properties_get( properties, "vcodec" );
 872         char *acodec = mlt_properties_get( properties, "acodec" );
 873
 874         // Used to store and override codec ids
 875         int audio_codec_id;
 876         int video_codec_id;
 877
 878         // Check for user selected format first
 879         if ( format != NULL )
 880                 fmt = guess_format( format, NULL, NULL );
 881
 882         // Otherwise check on the filename
 883         if ( fmt == NULL && filename != NULL )
 884                 fmt = guess_format( NULL, filename, NULL );
 885
 886         // Otherwise default to mpeg
 887         if ( fmt == NULL )
 888                 fmt = guess_format( "mpeg", NULL, NULL );
 889
 890         // We need a filename - default to stdout?
 891         if ( filename == NULL || !strcmp( filename, "" ) )
 892                 filename = "pipe:";
 893
 894         // Get the codec ids selected
 895         audio_codec_id = fmt->audio_codec;
 896         video_codec_id = fmt->video_codec;
 897
 898         // Check for audio codec overides
 899         if ( ( acodec && strcmp( acodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
 900                 audio_codec_id = CODEC_ID_NONE;
 901         else if ( acodec )
 902         {
 903                 AVCodec *p = avcodec_find_encoder_by_name( acodec );
 904                 if ( p != NULL )
 905                         audio_codec_id = p->id;
 906                 else
 907                         mlt_log_warning( MLT_CONSUMER_SERVICE( this ), "audio codec %s unrecognised - ignoring\n", acodec );
 908         }
 909
 910         // Check for video codec overides
 911         if ( ( vcodec && strcmp( vcodec, "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
 912                 video_codec_id = CODEC_ID_NONE;
 913         else if ( vcodec )
 914         {
 915                 AVCodec *p = avcodec_find_encoder_by_name( vcodec );
 916                 if ( p != NULL )
 917                         video_codec_id = p->id;
 918                 else
 919                         mlt_log_warning( MLT_CONSUMER_SERVICE( this ), "video codec %s unrecognised - ignoring\n", vcodec );
 920         }
 921
 922         // Write metadata
 923         char *tmp = NULL;
 924         int metavalue;
 925
 926         tmp = mlt_properties_get( properties, "meta.attr.title.markup");
 927         if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
 928
 929         tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
 930         if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
 931
 932         tmp = mlt_properties_get( properties, "meta.attr.author.markup");
 933         if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
 934
 935         tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
 936         if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
 937
 938         tmp = mlt_properties_get( properties, "meta.attr.album.markup");
 939         if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
 940
 941         metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
 942         if (metavalue != 0) oc->year = metavalue;
 943
 944         metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
 945         if (metavalue != 0) oc->track = metavalue;
 946
 947         oc->oformat = fmt;
 948         snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
 949
 950         // Add audio and video streams
 951         if ( video_codec_id != CODEC_ID_NONE )
 952                 video_st = add_video_stream( this, oc, video_codec_id );
 953         if ( audio_codec_id != CODEC_ID_NONE )
 954                 audio_st = add_audio_stream( this, oc, audio_codec_id );
 955
 956         // Set the parameters (even though we have none...)
 957         if ( av_set_parameters(oc, NULL) >= 0 )
 958         {
 959                 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
 960                 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
 961
 962                 // Process properties as AVOptions
 963                 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
 964
 965                 if ( video_st && !open_video( oc, video_st ) )
 966                         video_st = NULL;
 967                 if ( audio_st )
 968                         audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
 969
 970                 // Open the output file, if needed
 971                 if ( !( fmt->flags & AVFMT_NOFILE ) )
 972                 {
 973                         if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
 974                         {
 975                                 mlt_log_error( MLT_CONSUMER_SERVICE( this ), "Could not open '%s'\n", filename );
 976                                 mlt_properties_set_int( properties, "running", 0 );
 977                         }
 978                 }
 979
 980                 // Write the stream header, if any
 981                 if ( mlt_properties_get_int( properties, "running" ) )
 982                         av_write_header( oc );
 983         }
 984         else
 985         {
 986                 mlt_log_error( MLT_CONSUMER_SERVICE( this ), "Invalid output format parameters\n" );
 987                 mlt_properties_set_int( properties, "running", 0 );
 988         }
 989
 990         // Allocate picture
 991         if ( video_st )
 992                 output = alloc_picture( video_st->codec->pix_fmt, width, height );
 993
 994         // Last check - need at least one stream
 995         if ( audio_st == NULL && video_st == NULL )
 996                 mlt_properties_set_int( properties, "running", 0 );
 997
 998         // Get the starting time (can ignore the times above)
 999         gettimeofday( &ante, NULL );
1000
1001         // Loop while running
1002         while( mlt_properties_get_int( properties, "running" ) && !terminated )
1003         {
1004                 // Get the frame
1005                 frame = mlt_consumer_rt_frame( this );
1006
1007                 // Check that we have a frame to work with
1008                 if ( frame != NULL )
1009                 {
1010                         // Increment frames despatched
1011                         frames ++;
1012
1013                         // Default audio args
1014                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1015
1016                         // Check for the terminated condition
1017                         terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
1018
1019                         // Get audio and append to the fifo
1020                         if ( !terminated && audio_st )
1021                         {
1022                                 samples = mlt_sample_calculator( fps, frequency, count ++ );
1023                                 mlt_frame_get_audio( frame, (void**) &pcm, &aud_fmt, &frequency, &channels, &samples );
1024
1025                                 // Create the fifo if we don't have one
1026                                 if ( fifo == NULL )
1027                                 {
1028                                         fifo = sample_fifo_init( frequency, channels );
1029                                         mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1030                                 }
1031
1032                                 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1033                                         memset( pcm, 0, samples * channels * 2 );
1034
1035                                 // Append the samples
1036                                 sample_fifo_append( fifo, pcm, samples * channels );
1037                                 total_time += ( samples * 1000000 ) / frequency;
1038                         }
1039
1040                         // Encode the image
1041                         if ( !terminated && video_st )
1042                                 mlt_deque_push_back( queue, frame );
1043                         else
1044                                 mlt_frame_close( frame );
1045                 }
1046
1047                 // While we have stuff to process, process...
1048                 while ( 1 )
1049                 {
1050                         // Write interleaved audio and video frames
1051                         if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
1052                         {
1053                                 if ( ( channels * audio_input_frame_size ) < sample_fifo_used( fifo ) )
1054                                 {
1055                                         AVCodecContext *c;
1056                                         AVPacket pkt;
1057                                         av_init_packet( &pkt );
1058
1059                                         c = audio_st->codec;
1060
1061                                         sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1062
1063                                         pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1064                                         // Write the compressed frame in the media file
1065                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1066                                         {
1067                                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1068                                                 mlt_log_debug( MLT_CONSUMER_SERVICE( this ), "audio pkt pts %lld frame pts %lld", pkt.pts, c->coded_frame->pts );
1069                                         }
1070                                         pkt.flags |= PKT_FLAG_KEY;
1071                                         pkt.stream_index= audio_st->index;
1072                                         pkt.data= audio_outbuf;
1073
1074                                         if ( pkt.size )
1075                                                 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
1076                                                         mlt_log_error( MLT_CONSUMER_SERVICE( this ), "error writing audio frame\n" );
1077
1078                                         mlt_log_debug( MLT_CONSUMER_SERVICE( this ), " frame_size %d\n", c->frame_size );
1079                                         if ( audio_codec_id == CODEC_ID_VORBIS )
1080                                                 audio_pts = (double)c->coded_frame->pts * av_q2d( audio_st->time_base );
1081                                         else
1082                                                 audio_pts = (double)audio_st->pts.val * av_q2d( audio_st->time_base );
1083                                 }
1084                                 else
1085                                 {
1086                                         break;
1087                                 }
1088                         }
1089                         else if ( video_st )
1090                         {
1091                                 if ( mlt_deque_count( queue ) )
1092                                 {
1093                                         int out_size, ret;
1094                                         AVCodecContext *c;
1095
1096                                         frame = mlt_deque_pop_front( queue );
1097                                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1098
1099                                         c = video_st->codec;
1100
1101                                         if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1102                                         {
1103                                                 int i = 0;
1104                                                 int j = 0;
1105                                                 uint8_t *p;
1106                                                 uint8_t *q;
1107
1108                                                 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1109
1110                                                 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1111
1112                                                 q = image;
1113
1114                                                 // Convert the mlt frame to an AVPicture
1115                                                 for ( i = 0; i < height; i ++ )
1116                                                 {
1117                                                         p = input->data[ 0 ] + i * input->linesize[ 0 ];
1118                                                         j = width;
1119                                                         while( j -- )
1120                                                         {
1121                                                                 *p ++ = *q ++;
1122                                                                 *p ++ = *q ++;
1123                                                         }
1124                                                 }
1125
1126                                                 // Do the colour space conversion
1127 #ifdef SWSCALE
1128                                                 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1129                                                         width, height, video_st->codec->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL);
1130                                                 sws_scale( context, input->data, input->linesize, 0, height,
1131                                                         output->data, output->linesize);
1132                                                 sws_freeContext( context );
1133 #else
1134                                                 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1135 #endif
1136
1137                                                 // Apply the alpha if applicable
1138                                                 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1139                                                 {
1140                                                         uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1141                                                         register int n;
1142
1143                                                         for ( i = 0; i < height; i ++ )
1144                                                         {
1145                                                                 n = ( width + 7 ) / 8;
1146                                                                 p = output->data[ 0 ] + i * output->linesize[ 0 ];
1147
1148                                                                 #ifndef __DARWIN__
1149                                                                 p += 3;
1150                                                                 #endif
1151
1152                                                                 switch( width % 8 )
1153                                                                 {
1154                                                                         case 0: do { *p = *alpha++; p += 4;
1155                                                                         case 7:          *p = *alpha++; p += 4;
1156                                                                         case 6:          *p = *alpha++; p += 4;
1157                                                                         case 5:          *p = *alpha++; p += 4;
1158                                                                         case 4:          *p = *alpha++; p += 4;
1159                                                                         case 3:          *p = *alpha++; p += 4;
1160                                                                         case 2:          *p = *alpha++; p += 4;
1161                                                                         case 1:          *p = *alpha++; p += 4;
1162                                                                                         }
1163                                                                                         while( --n );
1164                                                                 }
1165                                                         }
1166                                                 }
1167                                         }
1168
1169                                         if (oc->oformat->flags & AVFMT_RAWPICTURE)
1170                                         {
1171                                                 // raw video case. The API will change slightly in the near future for that
1172                                                 AVPacket pkt;
1173                                                 av_init_packet(&pkt);
1174
1175                                                 pkt.flags |= PKT_FLAG_KEY;
1176                                                 pkt.stream_index= video_st->index;
1177                                                 pkt.data= (uint8_t *)output;
1178                                                 pkt.size= sizeof(AVPicture);
1179
1180                                                 ret = av_write_frame(oc, &pkt);
1181                                                 video_pts += c->frame_size;
1182                                         }
1183                                         else
1184                                         {
1185                                                 // Set the quality
1186                                                 output->quality = video_st->quality;
1187
1188                                                 // Set frame interlace hints
1189                                                 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1190                                                 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1191
1192                                                 // Encode the image
1193                                                 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1194
1195                                                 // If zero size, it means the image was buffered
1196                                                 if (out_size > 0)
1197                                                 {
1198                                                         AVPacket pkt;
1199                                                         av_init_packet( &pkt );
1200
1201                                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1202                                                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1203                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( this ), "video pkt pts %lld frame pts %lld", pkt.pts, c->coded_frame->pts );
1204                                                         if( c->coded_frame && c->coded_frame->key_frame )
1205                                                                 pkt.flags |= PKT_FLAG_KEY;
1206                                                         pkt.stream_index= video_st->index;
1207                                                         pkt.data= video_outbuf;
1208                                                         pkt.size= out_size;
1209
1210                                                         // write the compressed frame in the media file
1211                                                         ret = av_interleaved_write_frame(oc, &pkt);
1212                                                         mlt_log_debug( MLT_CONSUMER_SERVICE( this ), " frame_size %d\n", c->frame_size );
1213                                                         video_pts = (double)video_st->pts.val * av_q2d( video_st->time_base );
1214
1215                                                         // Dual pass logging
1216                                                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out )
1217                                                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1218                                                 }
1219                                                 else
1220                                                 {
1221                                                         mlt_log_warning( MLT_CONSUMER_SERVICE( this ), "error with video encode\n" );
1222                                                 }
1223                                         }
1224                                         frame_count++;
1225                                         mlt_frame_close( frame );
1226                                 }
1227                                 else
1228                                 {
1229                                         break;
1230                                 }
1231                         }
1232                         if ( audio_st )
1233                                 mlt_log_debug( MLT_CONSUMER_SERVICE( this ), "audio pts %lld (%f) ", audio_st->pts.val, audio_pts );
1234                         if ( video_st )
1235                                 mlt_log_debug( MLT_CONSUMER_SERVICE( this ), "video pts %lld (%f) ", video_st->pts.val, video_pts );
1236                         mlt_log_debug( MLT_CONSUMER_SERVICE( this ), "\n" );
1237                 }
1238
1239                 if ( real_time_output == 1 && frames % 12 == 0 )
1240                 {
1241                         long passed = time_difference( &ante );
1242                         if ( fifo != NULL )
1243                         {
1244                                 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1245                                 passed -= pending;
1246                         }
1247                         if ( passed < total_time )
1248                         {
1249                                 long total = ( total_time - passed );
1250                                 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1251                                 nanosleep( &t, NULL );
1252                         }
1253                 }
1254         }
1255
1256 #ifdef FLUSH
1257         if ( ! real_time_output )
1258         {
1259                 // Flush audio fifo
1260                 if ( audio_st && audio_st->codec->frame_size > 1 ) for (;;)
1261                 {
1262                         AVCodecContext *c = audio_st->codec;
1263                         AVPacket pkt;
1264                         av_init_packet( &pkt );
1265                         pkt.size = 0;
1266
1267                         if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1268                                 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1269                         {
1270                                 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1271                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1272                         }
1273                         if ( pkt.size <= 0 )
1274                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1275                         if ( pkt.size <= 0 )
1276                                 break;
1277
1278                         // Write the compressed frame in the media file
1279                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1280                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1281                         pkt.flags |= PKT_FLAG_KEY;
1282                         pkt.stream_index = audio_st->index;
1283                         pkt.data = audio_outbuf;
1284                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1285                         {
1286                                 fprintf( stderr, "%s: Error while writing flushed audio frame\n", __FILE__ );
1287                                 break;
1288                         }
1289                 }
1290
1291                 // Flush video
1292                 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1293                 {
1294                         AVCodecContext *c = video_st->codec;
1295                         AVPacket pkt;
1296                         av_init_packet( &pkt );
1297
1298                         // Encode the image
1299                         pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1300                         if ( pkt.size <= 0 )
1301                                 break;
1302
1303                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1304                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1305                         if( c->coded_frame && c->coded_frame->key_frame )
1306                                 pkt.flags |= PKT_FLAG_KEY;
1307                         pkt.stream_index = video_st->index;
1308                         pkt.data = video_outbuf;
1309
1310                         // write the compressed frame in the media file
1311                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1312                         {
1313                                 fprintf( stderr, "%s: Error while writing flushed video frame\n". __FILE__ );
1314                                 break;
1315                         }
1316                 }
1317         }
1318 #endif
1319
1320         // close each codec
1321         if (video_st)
1322                 close_video(oc, video_st);
1323         if (audio_st)
1324                 close_audio(oc, audio_st);
1325
1326         // Write the trailer, if any
1327         av_write_trailer(oc);
1328
1329         // Free the streams
1330         for(i = 0; i < oc->nb_streams; i++)
1331                 av_freep(&oc->streams[i]);
1332
1333         // Close the output file
1334         if (!(fmt->flags & AVFMT_NOFILE))
1335 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1336                 url_fclose(oc->pb);
1337 #else
1338                 url_fclose(&oc->pb);
1339 #endif
1340
1341         // Clean up input and output frames
1342         if ( output )
1343                 av_free( output->data[0] );
1344         av_free( output );
1345         av_free( input->data[0] );
1346         av_free( input );
1347         av_free( video_outbuf );
1348         av_free( buffer );
1349
1350         // Free the stream
1351         av_free(oc);
1352
1353         // Just in case we terminated on pause
1354         mlt_properties_set_int( properties, "running", 0 );
1355
1356         mlt_consumer_stopped( this );
1357
1358         if ( mlt_properties_get_int( properties, "pass" ) == 2 )
1359         {
1360                 // Remove the dual pass log file
1361                 if ( mlt_properties_get( properties, "_logfilename" ) )
1362                         remove( mlt_properties_get( properties, "_logfilename" ) );
1363
1364                 // Remove the x264 dual pass logs
1365                 char *cwd = getcwd( NULL, 0 );
1366                 const char *file = "x264_2pass.log";
1367                 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1368                 sprintf( full, "%s/%s", cwd, file );
1369                 remove( full );
1370                 free( full );
1371                 file = "x264_2pass.log.temp";
1372                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1373                 sprintf( full, "%s/%s", cwd, file );
1374                 remove( full );
1375                 free( full );
1376                 file = "x264_2pass.log.mbtree";
1377                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1378                 sprintf( full, "%s/%s", cwd, file );
1379                 remove( full );
1380                 free( full );
1381                 free( cwd );
1382                 remove( "x264_2pass.log.temp" );
1383         }
1384
1385         return NULL;
1386 }
1387
1388 /** Close the consumer.
1389 */
1390
1391 static void consumer_close( mlt_consumer this )
1392 {
1393         // Stop the consumer
1394         mlt_consumer_stop( this );
1395
1396         // Close the parent
1397         mlt_consumer_close( this );
1398
1399         // Free the memory
1400         free( this );
1401 }