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
  27 // System header files
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <limits.h>
  32 #include <pthread.h>
  33 #include <sys/time.h>
  34 #include <math.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                                 fprintf( stderr, "%s: Invalid size property %s - ignoring.\n", __FILE__, 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->channels = mlt_properties_get_int( properties, "channels" );
 426
 427                 if ( mlt_properties_get( properties, "alang" ) != NULL )
 428                         strncpy( st->language, mlt_properties_get( properties, "alang" ), sizeof( st->language ) );
 429         }
 430         else
 431         {
 432                 fprintf( stderr, "%s: Could not allocate a stream for audio\n", __FILE__ );
 433         }
 434
 435         return st;
 436 }
 437
 438 static int open_audio( AVFormatContext *oc, AVStream *st, int audio_outbuf_size )
 439 {
 440         // We will return the audio input size from here
 441         int audio_input_frame_size = 0;
 442
 443         // Get the context
 444         AVCodecContext *c = st->codec;
 445
 446         // Find the encoder
 447         AVCodec *codec = avcodec_find_encoder( c->codec_id );
 448
 449         // Continue if codec found and we can open it
 450         if ( codec != NULL && avcodec_open( c, codec ) >= 0 )
 451         {
 452                 // ugly hack for PCM codecs (will be removed ASAP with new PCM
 453                 // support to compute the input frame size in samples
 454                 if ( c->frame_size <= 1 )
 455                 {
 456                         audio_input_frame_size = audio_outbuf_size / c->channels;
 457                         switch(st->codec->codec_id)
 458                         {
 459                                 case CODEC_ID_PCM_S16LE:
 460                                 case CODEC_ID_PCM_S16BE:
 461                                 case CODEC_ID_PCM_U16LE:
 462                                 case CODEC_ID_PCM_U16BE:
 463                                         audio_input_frame_size >>= 1;
 464                                         break;
 465                                 default:
 466                                         break;
 467                         }
 468                 }
 469                 else
 470                 {
 471                         audio_input_frame_size = c->frame_size;
 472                 }
 473
 474                 // Some formats want stream headers to be seperate (hmm)
 475                 if( !strcmp( oc->oformat->name, "mp4" ) ||
 476                         !strcmp( oc->oformat->name, "mov" ) ||
 477                         !strcmp( oc->oformat->name, "3gp" ) )
 478                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 479         }
 480         else
 481         {
 482                 fprintf( stderr, "%s: Unable to encode audio - disabling audio output.\n", __FILE__ );
 483         }
 484
 485         return audio_input_frame_size;
 486 }
 487
 488 static void close_audio( AVFormatContext *oc, AVStream *st )
 489 {
 490         avcodec_close( st->codec );
 491 }
 492
 493 /** Add a video output stream
 494 */
 495
 496 static AVStream *add_video_stream( mlt_consumer this, AVFormatContext *oc, int codec_id )
 497 {
 498         // Get the properties
 499         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 500
 501         // Create a new stream
 502         AVStream *st = av_new_stream( oc, 0 );
 503
 504         if ( st != NULL )
 505         {
 506                 char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
 507                 AVCodecContext *c = st->codec;
 508
 509                 // Establish defaults from AVOptions
 510                 avcodec_get_context_defaults2( c, CODEC_TYPE_VIDEO );
 511
 512                 c->codec_id = codec_id;
 513                 c->codec_type = CODEC_TYPE_VIDEO;
 514
 515                 // Setup multi-threading
 516                 int thread_count = mlt_properties_get_int( properties, "threads" );
 517                 if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
 518                         thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
 519                 if ( thread_count > 1 )
 520                         avcodec_thread_init( c, thread_count );
 521
 522                 // Process properties as AVOptions
 523                 apply_properties( c, properties, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM );
 524
 525                 // Set options controlled by MLT
 526                 c->width = mlt_properties_get_int( properties, "width" );
 527                 c->height = mlt_properties_get_int( properties, "height" );
 528                 c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
 529                 c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
 530                 if ( st->time_base.den == 0 )
 531                         st->time_base = c->time_base;
 532                 c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
 533
 534                 if ( mlt_properties_get( properties, "aspect" ) )
 535                 {
 536                         // "-aspect" on ffmpeg command line is display aspect ratio
 537                         double ar = mlt_properties_get_double( properties, "aspect" );
 538                         AVRational rational = av_d2q( ar, 255 );
 539
 540                         // Update the profile and properties as well since this is an alias
 541                         // for mlt properties that correspond to profile settings
 542                         mlt_properties_set_int( properties, "display_aspect_num", rational.num );
 543                         mlt_properties_set_int( properties, "display_aspect_den", rational.den );
 544                         mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( this ) );
 545                         if ( profile )
 546                         {
 547                                 profile->display_aspect_num = rational.num;
 548                                 profile->display_aspect_den = rational.den;
 549                                 mlt_properties_set_double( properties, "display_ratio", mlt_profile_dar( profile ) );
 550                         }
 551
 552                         // Now compute the sample aspect ratio
 553                         rational = av_d2q( ar * c->height / c->width, 255 );
 554                         c->sample_aspect_ratio = rational;
 555                         // Update the profile and properties as well since this is an alias
 556                         // for mlt properties that correspond to profile settings
 557                         mlt_properties_set_int( properties, "sample_aspect_num", rational.num );
 558                         mlt_properties_set_int( properties, "sample_aspect_den", rational.den );
 559                         if ( profile )
 560                         {
 561                                 profile->sample_aspect_num = rational.num;
 562                                 profile->sample_aspect_den = rational.den;
 563                                 mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
 564                         }
 565                 }
 566                 else
 567                 {
 568                         c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
 569                         c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
 570                 }
 571 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(21<<8)+0)
 572                 st->sample_aspect_ratio = c->sample_aspect_ratio;
 573 #endif
 574
 575                 if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
 576                 {
 577                         c->flags |= CODEC_FLAG_QSCALE;
 578                         st->quality = FF_QP2LAMBDA * mlt_properties_get_double( properties, "qscale" );
 579                 }
 580
 581                 // Allow the user to override the video fourcc
 582                 if ( mlt_properties_get( properties, "vtag" ) )
 583                 {
 584                         char *tail = NULL;
 585                         const char *arg = mlt_properties_get( properties, "vtag" );
 586                         int tag = strtol( arg, &tail, 0);
 587                         if( !tail || *tail )
 588                                 tag = arg[ 0 ] + ( arg[ 1 ] << 8 ) + ( arg[ 2 ] << 16 ) + ( arg[ 3 ] << 24 );
 589                         c->codec_tag = tag;
 590                 }
 591
 592                 // Some formats want stream headers to be seperate
 593                 if ( oc->oformat->flags & AVFMT_GLOBALHEADER )
 594                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 595
 596                 // Translate these standard mlt consumer properties to ffmpeg
 597                 if ( mlt_properties_get_int( properties, "progressive" ) == 0 &&
 598                      mlt_properties_get_int( properties, "deinterlace" ) == 0 )
 599                 {
 600                         if ( ! mlt_properties_get( properties, "ildct" ) || mlt_properties_get_int( properties, "ildct" ) )
 601                                 c->flags |= CODEC_FLAG_INTERLACED_DCT;
 602                         if ( ! mlt_properties_get( properties, "ilme" ) || mlt_properties_get_int( properties, "ilme" ) )
 603                                 c->flags |= CODEC_FLAG_INTERLACED_ME;
 604                 }
 605
 606                 // parse the ratecontrol override string
 607                 int i;
 608                 char *rc_override = mlt_properties_get( properties, "rc_override" );
 609                 for ( i = 0; rc_override; i++ )
 610                 {
 611                         int start, end, q;
 612                         int e = sscanf( rc_override, "%d,%d,%d", &start, &end, &q );
 613                         if ( e != 3 )
 614                                 fprintf( stderr, "%s: Error parsing rc_override\n", __FILE__ );
 615                         c->rc_override = av_realloc( c->rc_override, sizeof( RcOverride ) * ( i + 1 ) );
 616                         c->rc_override[i].start_frame = start;
 617                         c->rc_override[i].end_frame = end;
 618                         if ( q > 0 )
 619                         {
 620                                 c->rc_override[i].qscale = q;
 621                                 c->rc_override[i].quality_factor = 1.0;
 622                         }
 623                         else
 624                         {
 625                                 c->rc_override[i].qscale = 0;
 626                                 c->rc_override[i].quality_factor = -q / 100.0;
 627                         }
 628                         rc_override = strchr( rc_override, '/' );
 629                         if ( rc_override )
 630                                 rc_override++;
 631                 }
 632                 c->rc_override_count = i;
 633                 if ( !c->rc_initial_buffer_occupancy )
 634                         c->rc_initial_buffer_occupancy = c->rc_buffer_size * 3/4;
 635                 c->intra_dc_precision = mlt_properties_get_int( properties, "dc" ) - 8;
 636
 637                 // Setup dual-pass
 638                 i = mlt_properties_get_int( properties, "pass" );
 639                 if ( i == 1 )
 640                         c->flags |= CODEC_FLAG_PASS1;
 641                 else if ( i == 2 )
 642                         c->flags |= CODEC_FLAG_PASS2;
 643                 if ( codec_id != CODEC_ID_H264 && ( c->flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) )
 644                 {
 645                         char logfilename[1024];
 646                         FILE *f;
 647                         int size;
 648                         char *logbuffer;
 649
 650                         snprintf( logfilename, sizeof(logfilename), "%s_2pass.log",
 651                                 mlt_properties_get( properties, "passlogfile" ) ? mlt_properties_get( properties, "passlogfile" ) : mlt_properties_get( properties, "target" ) );
 652                         if ( c->flags & CODEC_FLAG_PASS1 )
 653                         {
 654                                 f = fopen( logfilename, "w" );
 655                                 if ( !f )
 656                                         perror( logfilename );
 657                                 else
 658                                         mlt_properties_set_data( properties, "_logfile", f, 0, ( mlt_destructor )fclose, NULL );
 659                         }
 660                         else
 661                         {
 662                                 /* read the log file */
 663                                 f = fopen( logfilename, "r" );
 664                                 if ( !f )
 665                                 {
 666                                         perror(logfilename);
 667                                 }
 668                                 else
 669                                 {
 670                                         mlt_properties_set( properties, "_logfilename", logfilename );
 671                                         fseek( f, 0, SEEK_END );
 672                                         size = ftell( f );
 673                                         fseek( f, 0, SEEK_SET );
 674                                         logbuffer = av_malloc( size + 1 );
 675                                         if ( !logbuffer )
 676                                                 fprintf( stderr, "%s: Could not allocate log buffer\n", __FILE__ );
 677                                         else
 678                                         {
 679                                                 size = fread( logbuffer, 1, size, f );
 680                                                 fclose( f );
 681                                                 logbuffer[size] = '\0';
 682                                                 c->stats_in = logbuffer;
 683                                                 mlt_properties_set_data( properties, "_logbuffer", logbuffer, 0, ( mlt_destructor )av_free, NULL );
 684                                         }
 685                                 }
 686                         }
 687                 }
 688         }
 689         else
 690         {
 691                 fprintf( stderr, "%s: Could not allocate a stream for video\n", __FILE__ );
 692         }
 693
 694         return st;
 695 }
 696
 697 static AVFrame *alloc_picture( int pix_fmt, int width, int height )
 698 {
 699         // Allocate a frame
 700         AVFrame *picture = avcodec_alloc_frame();
 701
 702         // Determine size of the
 703         int size = avpicture_get_size(pix_fmt, width, height);
 704
 705         // Allocate the picture buf
 706         uint8_t *picture_buf = av_malloc(size);
 707
 708         // If we have both, then fill the image
 709         if ( picture != NULL && picture_buf != NULL )
 710         {
 711                 // Fill the frame with the allocated buffer
 712                 avpicture_fill( (AVPicture *)picture, picture_buf, pix_fmt, width, height);
 713         }
 714         else
 715         {
 716                 // Something failed - clean up what we can
 717                 av_free( picture );
 718                 av_free( picture_buf );
 719                 picture = NULL;
 720         }
 721
 722         return picture;
 723 }
 724
 725 static int open_video(AVFormatContext *oc, AVStream *st)
 726 {
 727         // Get the codec
 728         AVCodecContext *video_enc = st->codec;
 729
 730         // find the video encoder
 731         AVCodec *codec = avcodec_find_encoder( video_enc->codec_id );
 732
 733         if( codec && codec->pix_fmts )
 734         {
 735                 const enum PixelFormat *p = codec->pix_fmts;
 736                 for( ; *p!=-1; p++ )
 737                 {
 738                         if( *p == video_enc->pix_fmt )
 739                                 break;
 740                 }
 741                 if( *p == -1 )
 742                         video_enc->pix_fmt = codec->pix_fmts[ 0 ];
 743         }
 744
 745         // Open the codec safely
 746         return codec != NULL && avcodec_open( video_enc, codec ) >= 0;
 747 }
 748
 749 void close_video(AVFormatContext *oc, AVStream *st)
 750 {
 751         avcodec_close(st->codec);
 752 }
 753
 754 static inline long time_difference( struct timeval *time1 )
 755 {
 756         struct timeval time2;
 757         gettimeofday( &time2, NULL );
 758         return time2.tv_sec * 1000000 + time2.tv_usec - time1->tv_sec * 1000000 - time1->tv_usec;
 759 }
 760
 761 /** The main thread - the argument is simply the consumer.
 762 */
 763
 764 static void *consumer_thread( void *arg )
 765 {
 766         // Map the argument to the object
 767         mlt_consumer this = arg;
 768
 769         // Get the properties
 770         mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
 771
 772         // Get the terminate on pause property
 773         int terminate_on_pause = mlt_properties_get_int( properties, "terminate_on_pause" );
 774         int terminated = 0;
 775
 776         // Determine if feed is slow (for realtime stuff)
 777         int real_time_output = mlt_properties_get_int( properties, "real_time" );
 778
 779         // Time structures
 780         struct timeval ante;
 781
 782         // Get the frame rate
 783         double fps = mlt_properties_get_double( properties, "fps" );
 784
 785         // Get width and height
 786         int width = mlt_properties_get_int( properties, "width" );
 787         int height = mlt_properties_get_int( properties, "height" );
 788         int img_width = width;
 789         int img_height = height;
 790
 791         // Get default audio properties
 792         mlt_audio_format aud_fmt = mlt_audio_pcm;
 793         int channels = mlt_properties_get_int( properties, "channels" );
 794         int frequency = mlt_properties_get_int( properties, "frequency" );
 795         int16_t *pcm = NULL;
 796         int samples = 0;
 797
 798         // AVFormat audio buffer and frame size
 799         int audio_outbuf_size = 10000;
 800         uint8_t *audio_outbuf = av_malloc( audio_outbuf_size );
 801         int audio_input_frame_size = 0;
 802
 803         // AVFormat video buffer and frame count
 804         int frame_count = 0;
 805         int video_outbuf_size = ( 1024 * 1024 );
 806         uint8_t *video_outbuf = av_malloc( video_outbuf_size );
 807
 808         // Used for the frame properties
 809         mlt_frame frame = NULL;
 810         mlt_properties frame_properties = NULL;
 811
 812         // Get the queues
 813         mlt_deque queue = mlt_properties_get_data( properties, "frame_queue", NULL );
 814         sample_fifo fifo = mlt_properties_get_data( properties, "sample_fifo", NULL );
 815
 816         // Need two av pictures for converting
 817         AVFrame *output = NULL;
 818         AVFrame *input = alloc_picture( PIX_FMT_YUYV422, width, height );
 819
 820         // For receiving images from an mlt_frame
 821         uint8_t *image;
 822         mlt_image_format img_fmt = mlt_image_yuv422;
 823
 824         // For receiving audio samples back from the fifo
 825         int16_t *buffer = av_malloc( 48000 * 2 );
 826         int count = 0;
 827
 828         // Allocate the context
 829         AVFormatContext *oc = av_alloc_format_context( );
 830
 831         // Streams
 832         AVStream *audio_st = NULL;
 833         AVStream *video_st = NULL;
 834
 835         // Time stamps
 836         double audio_pts = 0;
 837         double video_pts = 0;
 838
 839         // Loop variable
 840         int i;
 841
 842         // Frames despatched
 843         long int frames = 0;
 844         long int total_time = 0;
 845
 846         // Determine the format
 847         AVOutputFormat *fmt = NULL;
 848         const char *filename = mlt_properties_get( properties, "target" );
 849         char *format = mlt_properties_get( properties, "f" );
 850         char *vcodec = mlt_properties_get( properties, "vcodec" );
 851         char *acodec = mlt_properties_get( properties, "acodec" );
 852
 853         // Used to store and override codec ids
 854         int audio_codec_id;
 855         int video_codec_id;
 856
 857         // Check for user selected format first
 858         if ( format != NULL )
 859                 fmt = guess_format( format, NULL, NULL );
 860
 861         // Otherwise check on the filename
 862         if ( fmt == NULL && filename != NULL )
 863                 fmt = guess_format( NULL, filename, NULL );
 864
 865         // Otherwise default to mpeg
 866         if ( fmt == NULL )
 867                 fmt = guess_format( "mpeg", NULL, NULL );
 868
 869         // We need a filename - default to stdout?
 870         if ( filename == NULL || !strcmp( filename, "" ) )
 871                 filename = "pipe:";
 872
 873         // Get the codec ids selected
 874         audio_codec_id = fmt->audio_codec;
 875         video_codec_id = fmt->video_codec;
 876
 877         // Check for audio codec overides
 878         if ( ( acodec && strcmp( "acodec", "none" ) == 0 ) || mlt_properties_get_int( properties, "an" ) )
 879                 audio_codec_id = CODEC_ID_NONE;
 880         else if ( acodec )
 881         {
 882                 AVCodec *p = avcodec_find_encoder_by_name( acodec );
 883                 if ( p != NULL )
 884                         audio_codec_id = p->id;
 885                 else
 886                         fprintf( stderr, "%s: audio codec %s unrecognised - ignoring\n", __FILE__, acodec );
 887         }
 888
 889         // Check for video codec overides
 890         if ( ( vcodec && strcmp( "vcodec", "none" ) == 0 ) || mlt_properties_get_int( properties, "vn" ) )
 891                 video_codec_id = CODEC_ID_NONE;
 892         else if ( vcodec )
 893         {
 894                 AVCodec *p = avcodec_find_encoder_by_name( vcodec );
 895                 if ( p != NULL )
 896                         video_codec_id = p->id;
 897                 else
 898                         fprintf( stderr, "%s: video codec %s unrecognised - ignoring\n", __FILE__, vcodec );
 899         }
 900
 901         // Write metadata
 902         char *tmp = NULL;
 903         int metavalue;
 904
 905         tmp = mlt_properties_get( properties, "meta.attr.title.markup");
 906         if (tmp != NULL) snprintf( oc->title, sizeof(oc->title), "%s", tmp );
 907
 908         tmp = mlt_properties_get( properties, "meta.attr.comment.markup");
 909         if (tmp != NULL) snprintf( oc->comment, sizeof(oc->comment), "%s", tmp );
 910
 911         tmp = mlt_properties_get( properties, "meta.attr.author.markup");
 912         if (tmp != NULL) snprintf( oc->author, sizeof(oc->author), "%s", tmp );
 913
 914         tmp = mlt_properties_get( properties, "meta.attr.copyright.markup");
 915         if (tmp != NULL) snprintf( oc->copyright, sizeof(oc->copyright), "%s", tmp );
 916
 917         tmp = mlt_properties_get( properties, "meta.attr.album.markup");
 918         if (tmp != NULL) snprintf( oc->album, sizeof(oc->album), "%s", tmp );
 919
 920         metavalue = mlt_properties_get_int( properties, "meta.attr.year.markup");
 921         if (metavalue != 0) oc->year = metavalue;
 922
 923         metavalue = mlt_properties_get_int( properties, "meta.attr.track.markup");
 924         if (metavalue != 0) oc->track = metavalue;
 925
 926         oc->oformat = fmt;
 927         snprintf( oc->filename, sizeof(oc->filename), "%s", filename );
 928
 929         // Add audio and video streams
 930         if ( video_codec_id != CODEC_ID_NONE )
 931                 video_st = add_video_stream( this, oc, video_codec_id );
 932         if ( audio_codec_id != CODEC_ID_NONE )
 933                 audio_st = add_audio_stream( this, oc, audio_codec_id );
 934
 935         // Set the parameters (even though we have none...)
 936         if ( av_set_parameters(oc, NULL) >= 0 )
 937         {
 938                 oc->preload = ( int )( mlt_properties_get_double( properties, "muxpreload" ) * AV_TIME_BASE );
 939                 oc->max_delay= ( int )( mlt_properties_get_double( properties, "muxdelay" ) * AV_TIME_BASE );
 940
 941                 // Process properties as AVOptions
 942                 apply_properties( oc, properties, AV_OPT_FLAG_ENCODING_PARAM );
 943
 944                 if ( video_st && !open_video( oc, video_st ) )
 945                         video_st = NULL;
 946                 if ( audio_st )
 947                         audio_input_frame_size = open_audio( oc, audio_st, audio_outbuf_size );
 948
 949                 // Open the output file, if needed
 950                 if ( !( fmt->flags & AVFMT_NOFILE ) )
 951                 {
 952                         if ( url_fopen( &oc->pb, filename, URL_WRONLY ) < 0 )
 953                         {
 954                                 fprintf( stderr, "%s: Could not open '%s'\n", __FILE__, filename );
 955                                 mlt_properties_set_int( properties, "running", 0 );
 956                         }
 957                 }
 958
 959                 // Write the stream header, if any
 960                 if ( mlt_properties_get_int( properties, "running" ) )
 961                         av_write_header( oc );
 962         }
 963         else
 964         {
 965                 fprintf( stderr, "%s: Invalid output format parameters\n", __FILE__ );
 966                 mlt_properties_set_int( properties, "running", 0 );
 967         }
 968
 969         // Allocate picture
 970         if ( video_st )
 971                 output = alloc_picture( video_st->codec->pix_fmt, width, height );
 972
 973         // Last check - need at least one stream
 974         if ( audio_st == NULL && video_st == NULL )
 975                 mlt_properties_set_int( properties, "running", 0 );
 976
 977         // Get the starting time (can ignore the times above)
 978         gettimeofday( &ante, NULL );
 979
 980         // Loop while running
 981         while( mlt_properties_get_int( properties, "running" ) && !terminated )
 982         {
 983                 // Get the frame
 984                 frame = mlt_consumer_rt_frame( this );
 985
 986                 // Check that we have a frame to work with
 987                 if ( frame != NULL )
 988                 {
 989                         // Increment frames despatched
 990                         frames ++;
 991
 992                         // Default audio args
 993                         frame_properties = MLT_FRAME_PROPERTIES( frame );
 994
 995                         // Check for the terminated condition
 996                         terminated = terminate_on_pause && mlt_properties_get_double( frame_properties, "_speed" ) == 0.0;
 997
 998                         // Get audio and append to the fifo
 999                         if ( !terminated && audio_st )
1000                         {
1001                                 samples = mlt_sample_calculator( fps, frequency, count ++ );
1002                                 mlt_frame_get_audio( frame, &pcm, &aud_fmt, &frequency, &channels, &samples );
1003
1004                                 // Create the fifo if we don't have one
1005                                 if ( fifo == NULL )
1006                                 {
1007                                         fifo = sample_fifo_init( frequency, channels );
1008                                         mlt_properties_set_data( properties, "sample_fifo", fifo, 0, ( mlt_destructor )sample_fifo_close, NULL );
1009                                 }
1010
1011                                 if ( mlt_properties_get_double( frame_properties, "_speed" ) != 1.0 )
1012                                         memset( pcm, 0, samples * channels * 2 );
1013
1014                                 // Append the samples
1015                                 sample_fifo_append( fifo, pcm, samples * channels );
1016                                 total_time += ( samples * 1000000 ) / frequency;
1017                         }
1018
1019                         // Encode the image
1020                         if ( !terminated && video_st )
1021                                 mlt_deque_push_back( queue, frame );
1022                         else
1023                                 mlt_frame_close( frame );
1024                 }
1025
1026                 // While we have stuff to process, process...
1027                 while ( 1 )
1028                 {
1029                         if (audio_st)
1030                                 audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
1031                         else
1032                                 audio_pts = 0.0;
1033
1034                         if (video_st)
1035                                 video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
1036                         else
1037                                 video_pts = 0.0;
1038
1039                         // Write interleaved audio and video frames
1040                         if ( !video_st || ( video_st && audio_st && audio_pts < video_pts ) )
1041                         {
1042                                 if ( channels * audio_input_frame_size < sample_fifo_used( fifo ) )
1043                                 {
1044                                         AVCodecContext *c;
1045                                         AVPacket pkt;
1046                                         av_init_packet( &pkt );
1047
1048                                         c = audio_st->codec;
1049
1050                                         sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1051
1052                                         pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1053                                         // Write the compressed frame in the media file
1054                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1055                                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1056                                         pkt.flags |= PKT_FLAG_KEY;
1057                                         pkt.stream_index= audio_st->index;
1058                                         pkt.data= audio_outbuf;
1059
1060                                         if ( pkt.size )
1061                                                 if ( av_interleaved_write_frame( oc, &pkt ) != 0)
1062                                                         fprintf( stderr, "%s: Error while writing audio frame\n", __FILE__ );
1063
1064                                         audio_pts += c->frame_size;
1065                                 }
1066                                 else
1067                                 {
1068                                         break;
1069                                 }
1070                         }
1071                         else if ( video_st )
1072                         {
1073                                 if ( mlt_deque_count( queue ) )
1074                                 {
1075                                         int out_size, ret;
1076                                         AVCodecContext *c;
1077
1078                                         frame = mlt_deque_pop_front( queue );
1079                                         frame_properties = MLT_FRAME_PROPERTIES( frame );
1080
1081                                         c = video_st->codec;
1082
1083                                         if ( mlt_properties_get_int( frame_properties, "rendered" ) )
1084                                         {
1085                                                 int i = 0;
1086                                                 int j = 0;
1087                                                 uint8_t *p;
1088                                                 uint8_t *q;
1089
1090                                                 mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
1091
1092                                                 mlt_frame_get_image( frame, &image, &img_fmt, &img_width, &img_height, 0 );
1093
1094                                                 q = image;
1095
1096                                                 // Convert the mlt frame to an AVPicture
1097                                                 for ( i = 0; i < height; i ++ )
1098                                                 {
1099                                                         p = input->data[ 0 ] + i * input->linesize[ 0 ];
1100                                                         j = width;
1101                                                         while( j -- )
1102                                                         {
1103                                                                 *p ++ = *q ++;
1104                                                                 *p ++ = *q ++;
1105                                                         }
1106                                                 }
1107
1108                                                 // Do the colour space conversion
1109 #ifdef SWSCALE
1110                                                 struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUYV422,
1111                                                         width, height, video_st->codec->pix_fmt, SWS_FAST_BILINEAR, NULL, NULL, NULL);
1112                                                 sws_scale( context, input->data, input->linesize, 0, height,
1113                                                         output->data, output->linesize);
1114                                                 sws_freeContext( context );
1115 #else
1116                                                 img_convert( ( AVPicture * )output, video_st->codec->pix_fmt, ( AVPicture * )input, PIX_FMT_YUYV422, width, height );
1117 #endif
1118
1119                                                 // Apply the alpha if applicable
1120                                                 if ( video_st->codec->pix_fmt == PIX_FMT_RGB32 )
1121                                                 {
1122                                                         uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
1123                                                         register int n;
1124
1125                                                         for ( i = 0; i < height; i ++ )
1126                                                         {
1127                                                                 n = ( width + 7 ) / 8;
1128                                                                 p = output->data[ 0 ] + i * output->linesize[ 0 ];
1129
1130                                                                 #ifndef __DARWIN__
1131                                                                 p += 3;
1132                                                                 #endif
1133
1134                                                                 switch( width % 8 )
1135                                                                 {
1136                                                                         case 0: do { *p = *alpha++; p += 4;
1137                                                                         case 7:          *p = *alpha++; p += 4;
1138                                                                         case 6:          *p = *alpha++; p += 4;
1139                                                                         case 5:          *p = *alpha++; p += 4;
1140                                                                         case 4:          *p = *alpha++; p += 4;
1141                                                                         case 3:          *p = *alpha++; p += 4;
1142                                                                         case 2:          *p = *alpha++; p += 4;
1143                                                                         case 1:          *p = *alpha++; p += 4;
1144                                                                                         }
1145                                                                                         while( --n );
1146                                                                 }
1147                                                         }
1148                                                 }
1149                                         }
1150
1151                                         if (oc->oformat->flags & AVFMT_RAWPICTURE)
1152                                         {
1153                                                 // raw video case. The API will change slightly in the near future for that
1154                                                 AVPacket pkt;
1155                                                 av_init_packet(&pkt);
1156
1157                                                 pkt.flags |= PKT_FLAG_KEY;
1158                                                 pkt.stream_index= video_st->index;
1159                                                 pkt.data= (uint8_t *)output;
1160                                                 pkt.size= sizeof(AVPicture);
1161
1162                                                 ret = av_write_frame(oc, &pkt);
1163                                                 video_pts += c->frame_size;
1164                                         }
1165                                         else
1166                                         {
1167                                                 // Set the quality
1168                                                 output->quality = video_st->quality;
1169
1170                                                 // Set frame interlace hints
1171                                                 output->interlaced_frame = !mlt_properties_get_int( frame_properties, "progressive" );
1172                                                 output->top_field_first = mlt_properties_get_int( frame_properties, "top_field_first" );
1173
1174                                                 // Encode the image
1175                                                 out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, output );
1176
1177                                                 // If zero size, it means the image was buffered
1178                                                 if (out_size > 0)
1179                                                 {
1180                                                         AVPacket pkt;
1181                                                         av_init_packet( &pkt );
1182
1183                                                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1184                                                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1185                                                         if( c->coded_frame && c->coded_frame->key_frame )
1186                                                                 pkt.flags |= PKT_FLAG_KEY;
1187                                                         pkt.stream_index= video_st->index;
1188                                                         pkt.data= video_outbuf;
1189                                                         pkt.size= out_size;
1190
1191                                                         // write the compressed frame in the media file
1192                                                         ret = av_interleaved_write_frame(oc, &pkt);
1193                                                         video_pts += c->frame_size;
1194
1195                                                         // Dual pass logging
1196                                                         if ( mlt_properties_get_data( properties, "_logfile", NULL ) && c->stats_out)
1197                                                                 fprintf( mlt_properties_get_data( properties, "_logfile", NULL ), "%s", c->stats_out );
1198                                                 }
1199                                                 else
1200                                                 {
1201                                                         fprintf( stderr, "%s: error with video encode\n", __FILE__ );
1202                                                 }
1203                                         }
1204                                         frame_count++;
1205                                         mlt_frame_close( frame );
1206                                 }
1207                                 else
1208                                 {
1209                                         break;
1210                                 }
1211                         }
1212                 }
1213
1214                 if ( real_time_output == 1 && frames % 12 == 0 )
1215                 {
1216                         long passed = time_difference( &ante );
1217                         if ( fifo != NULL )
1218                         {
1219                                 long pending = ( ( ( long )sample_fifo_used( fifo ) * 1000 ) / frequency ) * 1000;
1220                                 passed -= pending;
1221                         }
1222                         if ( passed < total_time )
1223                         {
1224                                 long total = ( total_time - passed );
1225                                 struct timespec t = { total / 1000000, ( total % 1000000 ) * 1000 };
1226                                 nanosleep( &t, NULL );
1227                         }
1228                 }
1229         }
1230
1231 #ifdef FLUSH
1232         if ( ! real_time_output )
1233         {
1234                 // Flush audio fifo
1235                 if ( audio_st && audio_st->codec->frame_size > 1 ) for (;;)
1236                 {
1237                         AVCodecContext *c = audio_st->codec;
1238                         AVPacket pkt;
1239                         av_init_packet( &pkt );
1240                         pkt.size = 0;
1241
1242                         if ( /*( c->capabilities & CODEC_CAP_SMALL_LAST_FRAME ) &&*/
1243                                 ( channels * audio_input_frame_size < sample_fifo_used( fifo ) ) )
1244                         {
1245                                 sample_fifo_fetch( fifo, buffer, channels * audio_input_frame_size );
1246                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, buffer );
1247                         }
1248                         if ( pkt.size <= 0 )
1249                                 pkt.size = avcodec_encode_audio( c, audio_outbuf, audio_outbuf_size, NULL );
1250                         if ( pkt.size <= 0 )
1251                                 break;
1252
1253                         // Write the compressed frame in the media file
1254                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1255                                 pkt.pts = av_rescale_q( c->coded_frame->pts, c->time_base, audio_st->time_base );
1256                         pkt.flags |= PKT_FLAG_KEY;
1257                         pkt.stream_index = audio_st->index;
1258                         pkt.data = audio_outbuf;
1259                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1260                         {
1261                                 fprintf( stderr, "%s: Error while writing flushed audio frame\n", __FILE__ );
1262                                 break;
1263                         }
1264                 }
1265
1266                 // Flush video
1267                 if ( video_st && !( oc->oformat->flags & AVFMT_RAWPICTURE ) ) for (;;)
1268                 {
1269                         AVCodecContext *c = video_st->codec;
1270                         AVPacket pkt;
1271                         av_init_packet( &pkt );
1272
1273                         // Encode the image
1274                         pkt.size = avcodec_encode_video( c, video_outbuf, video_outbuf_size, NULL );
1275                         if ( pkt.size <= 0 )
1276                                 break;
1277
1278                         if ( c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE )
1279                                 pkt.pts= av_rescale_q( c->coded_frame->pts, c->time_base, video_st->time_base );
1280                         if( c->coded_frame && c->coded_frame->key_frame )
1281                                 pkt.flags |= PKT_FLAG_KEY;
1282                         pkt.stream_index = video_st->index;
1283                         pkt.data = video_outbuf;
1284
1285                         // write the compressed frame in the media file
1286                         if ( av_interleaved_write_frame( oc, &pkt ) != 0 )
1287                         {
1288                                 fprintf( stderr, "%s: Error while writing flushed video frame\n". __FILE__ );
1289                                 break;
1290                         }
1291                 }
1292         }
1293 #endif
1294
1295         // close each codec
1296         if (video_st)
1297                 close_video(oc, video_st);
1298         if (audio_st)
1299                 close_audio(oc, audio_st);
1300
1301         // Write the trailer, if any
1302         av_write_trailer(oc);
1303
1304         // Free the streams
1305         for(i = 0; i < oc->nb_streams; i++)
1306                 av_freep(&oc->streams[i]);
1307
1308         // Close the output file
1309         if (!(fmt->flags & AVFMT_NOFILE))
1310 #if LIBAVFORMAT_VERSION_INT >= ((52<<16)+(0<<8)+0)
1311                 url_fclose(oc->pb);
1312 #else
1313                 url_fclose(&oc->pb);
1314 #endif
1315
1316         // Clean up input and output frames
1317         if ( output )
1318                 av_free( output->data[0] );
1319         av_free( output );
1320         av_free( input->data[0] );
1321         av_free( input );
1322         av_free( video_outbuf );
1323         av_free( buffer );
1324
1325         // Free the stream
1326         av_free(oc);
1327
1328         // Just in case we terminated on pause
1329         mlt_properties_set_int( properties, "running", 0 );
1330
1331         mlt_consumer_stopped( this );
1332
1333         if ( mlt_properties_get_int( properties, "pass" ) == 2 )
1334         {
1335                 // Remove the dual pass log file
1336                 if ( mlt_properties_get( properties, "_logfilename" ) )
1337                         remove( mlt_properties_get( properties, "_logfilename" ) );
1338
1339                 // Remove the x264 dual pass logs
1340                 char *cwd = getcwd( NULL, 0 );
1341                 const char *file = "x264_2pass.log";
1342                 char *full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1343                 sprintf( full, "%s/%s", cwd, file );
1344                 remove( full );
1345                 free( full );
1346                 file = "x264_2pass.log.temp";
1347                 full = malloc( strlen( cwd ) + strlen( file ) + 2 );
1348                 sprintf( full, "%s/%s", cwd, file );
1349                 remove( full );
1350                 free( full );
1351                 free( cwd );
1352                 remove( "x264_2pass.log.temp" );
1353         }
1354
1355         return NULL;
1356 }
1357
1358 /** Close the consumer.
1359 */
1360
1361 static void consumer_close( mlt_consumer this )
1362 {
1363         // Stop the consumer
1364         mlt_consumer_stop( this );
1365
1366         // Close the parent
1367         mlt_consumer_close( this );
1368
1369         // Free the memory
1370         free( this );
1371 }