modules/stream_out/transcode/transcode.c

   1 /*****************************************************************************
   2  * transcode.c: transcoding stream output module
   3  *****************************************************************************
   4  * Copyright (C) 2003-2009 VLC authors and VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *          Jean-Paul Saman <jpsaman #_at_# m2x dot nl>
  10  *          Antoine Cellerier <dionoea at videolan dot org>
  11  *          Ilkka Ollakka <ileoo at videolan dot org>
  12  *
  13  * This program is free software; you can redistribute it and/or modify it
  14  * under the terms of the GNU Lesser General Public License as published by
  15  * the Free Software Foundation; either version 2.1 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21  * GNU Lesser General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU Lesser General Public License
  24  * along with this program; if not, write to the Free Software Foundation,
  25  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  26  *****************************************************************************/
  27
  28 /*****************************************************************************
  29  * Preamble
  30  *****************************************************************************/
  31 #ifdef HAVE_CONFIG_H
  32 # include "config.h"
  33 #endif
  34
  35 #include <vlc_common.h>
  36 #include <vlc_plugin.h>
  37
  38 #include <vlc_spu.h>
  39
  40 #include "transcode.h"
  41
  42 /*****************************************************************************
  43  * Module descriptor
  44  *****************************************************************************/
  45 #define VENC_TEXT N_("Video encoder")
  46 #define VENC_LONGTEXT N_( \
  47     "This is the video encoder module that will be used (and its associated "\
  48     "options).")
  49 #define VCODEC_TEXT N_("Destination video codec")
  50 #define VCODEC_LONGTEXT N_( \
  51     "This is the video codec that will be used.")
  52 #define VB_TEXT N_("Video bitrate")
  53 #define VB_LONGTEXT N_( \
  54     "Target bitrate of the transcoded video stream." )
  55 #define SCALE_TEXT N_("Video scaling")
  56 #define SCALE_LONGTEXT N_( \
  57     "Scale factor to apply to the video while transcoding (eg: 0.25)")
  58 #define FPS_TEXT N_("Video frame-rate")
  59 #define FPS_LONGTEXT N_( \
  60     "Target output frame rate for the video stream." )
  61 #define DEINTERLACE_TEXT N_("Deinterlace video")
  62 #define DEINTERLACE_LONGTEXT N_( \
  63     "Deinterlace the video before encoding." )
  64 #define DEINTERLACE_MODULE_TEXT N_("Deinterlace module")
  65 #define DEINTERLACE_MODULE_LONGTEXT N_( \
  66     "Specify the deinterlace module to use." )
  67 #define WIDTH_TEXT N_("Video width")
  68 #define WIDTH_LONGTEXT N_( \
  69     "Output video width." )
  70 #define HEIGHT_TEXT N_("Video height")
  71 #define HEIGHT_LONGTEXT N_( \
  72     "Output video height." )
  73 #define MAXWIDTH_TEXT N_("Maximum video width")
  74 #define MAXWIDTH_LONGTEXT N_( \
  75     "Maximum output video width." )
  76 #define MAXHEIGHT_TEXT N_("Maximum video height")
  77 #define MAXHEIGHT_LONGTEXT N_( \
  78     "Maximum output video height." )
  79 #define VFILTER_TEXT N_("Video filter")
  80 #define VFILTER_LONGTEXT N_( \
  81     "Video filters will be applied to the video streams (after overlays " \
  82     "are applied). You can enter a colon-separated list of filters." )
  83
  84 #define AENC_TEXT N_("Audio encoder")
  85 #define AENC_LONGTEXT N_( \
  86     "This is the audio encoder module that will be used (and its associated "\
  87     "options).")
  88 #define ACODEC_TEXT N_("Destination audio codec")
  89 #define ACODEC_LONGTEXT N_( \
  90     "This is the audio codec that will be used.")
  91 #define AB_TEXT N_("Audio bitrate")
  92 #define AB_LONGTEXT N_( \
  93     "Target bitrate of the transcoded audio stream." )
  94 #define ARATE_TEXT N_("Audio sample rate")
  95 #define ARATE_LONGTEXT N_( \
  96  "Sample rate of the transcoded audio stream (11250, 22500, 44100 or 48000).")
  97 #define ALANG_TEXT N_("Audio language")
  98 #define ALANG_LONGTEXT N_( \
  99     "This is the language of the audio stream.")
 100 #define ACHANS_TEXT N_("Audio channels")
 101 #define ACHANS_LONGTEXT N_( \
 102     "Number of audio channels in the transcoded streams." )
 103 #define AFILTER_TEXT N_("Audio filter")
 104 #define AFILTER_LONGTEXT N_( \
 105     "Audio filters will be applied to the audio streams (after conversion " \
 106     "filters are applied). You can enter a colon-separated list of filters." )
 107
 108 #define SENC_TEXT N_("Subtitle encoder")
 109 #define SENC_LONGTEXT N_( \
 110     "This is the subtitle encoder module that will be used (and its " \
 111     "associated options)." )
 112 #define SCODEC_TEXT N_("Destination subtitle codec")
 113 #define SCODEC_LONGTEXT N_( \
 114     "This is the subtitle codec that will be used." )
 115
 116 #define SFILTER_TEXT N_("Overlays")
 117 #define SFILTER_LONGTEXT N_( \
 118     "This allows you to add overlays (also known as \"subpictures\" on the "\
 119     "transcoded video stream. The subpictures produced by the filters will "\
 120     "be overlayed directly onto the video. You can specify a colon-separated "\
 121     "list of subpicture modules" )
 122
 123 #define OSD_TEXT N_("OSD menu")
 124 #define OSD_LONGTEXT N_(\
 125     "Stream the On Screen Display menu (using the osdmenu subpicture module)." )
 126
 127 #define THREADS_TEXT N_("Number of threads")
 128 #define THREADS_LONGTEXT N_( \
 129     "Number of threads used for the transcoding." )
 130 #define HP_TEXT N_("High priority")
 131 #define HP_LONGTEXT N_( \
 132     "Runs the optional encoder thread at the OUTPUT priority instead of " \
 133     "VIDEO." )
 134
 135 #define ASYNC_TEXT N_("Synchronise on audio track")
 136 #define ASYNC_LONGTEXT N_( \
 137     "This option will drop/duplicate video frames to synchronise the video " \
 138     "track on the audio track." )
 139
 140 #define HURRYUP_TEXT N_( "Hurry up" )
 141 #define HURRYUP_LONGTEXT N_( "The transcoder will drop frames if your CPU " \
 142                 "can't keep up with the encoding rate." )
 143
 144 static const char *const ppsz_deinterlace_type[] =
 145 {
 146     "deinterlace", "ffmpeg-deinterlace"
 147 };
 148
 149 static int  Open ( vlc_object_t * );
 150 static void Close( vlc_object_t * );
 151
 152 #define SOUT_CFG_PREFIX "sout-transcode-"
 153
 154 vlc_module_begin ()
 155     set_shortname( N_("Transcode"))
 156     set_description( N_("Transcode stream output") )
 157     set_capability( "sout stream", 50 )
 158     add_shortcut( "transcode" )
 159     set_callbacks( Open, Close )
 160     set_category( CAT_SOUT )
 161     set_subcategory( SUBCAT_SOUT_STREAM )
 162     set_section( N_("Video"), NULL )
 163     add_module( SOUT_CFG_PREFIX "venc", "encoder", NULL, VENC_TEXT,
 164                 VENC_LONGTEXT, false )
 165     add_string( SOUT_CFG_PREFIX "vcodec", NULL, VCODEC_TEXT,
 166                 VCODEC_LONGTEXT, false )
 167     add_integer( SOUT_CFG_PREFIX "vb", 0, VB_TEXT,
 168                  VB_LONGTEXT, false )
 169     add_float( SOUT_CFG_PREFIX "scale", 0, SCALE_TEXT,
 170                SCALE_LONGTEXT, false )
 171     add_string( SOUT_CFG_PREFIX "fps", NULL, FPS_TEXT,
 172                FPS_LONGTEXT, false )
 173     add_bool( SOUT_CFG_PREFIX "hurry-up", false, HURRYUP_TEXT,
 174                HURRYUP_LONGTEXT, false )
 175     add_bool( SOUT_CFG_PREFIX "deinterlace", false, DEINTERLACE_TEXT,
 176               DEINTERLACE_LONGTEXT, false )
 177     add_string( SOUT_CFG_PREFIX "deinterlace-module", "deinterlace",
 178                 DEINTERLACE_MODULE_TEXT, DEINTERLACE_MODULE_LONGTEXT,
 179                 false )
 180         change_string_list( ppsz_deinterlace_type, ppsz_deinterlace_type )
 181     add_integer( SOUT_CFG_PREFIX "width", 0, WIDTH_TEXT,
 182                  WIDTH_LONGTEXT, true )
 183     add_integer( SOUT_CFG_PREFIX "height", 0, HEIGHT_TEXT,
 184                  HEIGHT_LONGTEXT, true )
 185     add_integer( SOUT_CFG_PREFIX "maxwidth", 0, MAXWIDTH_TEXT,
 186                  MAXWIDTH_LONGTEXT, true )
 187     add_integer( SOUT_CFG_PREFIX "maxheight", 0, MAXHEIGHT_TEXT,
 188                  MAXHEIGHT_LONGTEXT, true )
 189     add_module_list( SOUT_CFG_PREFIX "vfilter", "video filter2",
 190                      NULL, VFILTER_TEXT, VFILTER_LONGTEXT, false )
 191
 192     set_section( N_("Audio"), NULL )
 193     add_module( SOUT_CFG_PREFIX "aenc", "encoder", NULL, AENC_TEXT,
 194                 AENC_LONGTEXT, false )
 195     add_string( SOUT_CFG_PREFIX "acodec", NULL, ACODEC_TEXT,
 196                 ACODEC_LONGTEXT, false )
 197     add_integer( SOUT_CFG_PREFIX "ab", 96, AB_TEXT,
 198                  AB_LONGTEXT, false )
 199     add_string( SOUT_CFG_PREFIX "alang", NULL, ALANG_TEXT,
 200                 ALANG_LONGTEXT, true )
 201     add_integer( SOUT_CFG_PREFIX "channels", 0, ACHANS_TEXT,
 202                  ACHANS_LONGTEXT, false )
 203     add_integer( SOUT_CFG_PREFIX "samplerate", 0, ARATE_TEXT,
 204                  ARATE_LONGTEXT, true )
 205     add_bool( SOUT_CFG_PREFIX "audio-sync", false, ASYNC_TEXT,
 206               ASYNC_LONGTEXT, false )
 207     add_module_list( SOUT_CFG_PREFIX "afilter",  "audio filter",
 208                      NULL, AFILTER_TEXT, AFILTER_LONGTEXT, false )
 209
 210     set_section( N_("Overlays/Subtitles"), NULL )
 211     add_module( SOUT_CFG_PREFIX "senc", "encoder", NULL, SENC_TEXT,
 212                 SENC_LONGTEXT, false )
 213     add_string( SOUT_CFG_PREFIX "scodec", NULL, SCODEC_TEXT,
 214                 SCODEC_LONGTEXT, false )
 215     add_bool( SOUT_CFG_PREFIX "soverlay", false, SCODEC_TEXT,
 216                SCODEC_LONGTEXT, false )
 217     add_module_list( SOUT_CFG_PREFIX "sfilter", "video filter",
 218                      NULL, SFILTER_TEXT, SFILTER_LONGTEXT, false )
 219
 220     set_section( N_("On Screen Display"), NULL )
 221     add_bool( SOUT_CFG_PREFIX "osd", false, OSD_TEXT,
 222               OSD_LONGTEXT, false )
 223
 224     set_section( N_("Miscellaneous"), NULL )
 225     add_integer( SOUT_CFG_PREFIX "threads", 0, THREADS_TEXT,
 226                  THREADS_LONGTEXT, true )
 227     add_bool( SOUT_CFG_PREFIX "high-priority", false, HP_TEXT, HP_LONGTEXT,
 228               true )
 229
 230 vlc_module_end ()
 231
 232 static const char *const ppsz_sout_options[] = {
 233     "venc", "vcodec", "vb",
 234     "scale", "fps", "width", "height", "vfilter", "deinterlace",
 235     "deinterlace-module", "threads", "hurry-up", "aenc", "acodec", "ab", "alang",
 236     "afilter", "samplerate", "channels", "senc", "scodec", "soverlay",
 237     "sfilter", "osd", "audio-sync", "high-priority", "maxwidth", "maxheight",
 238     NULL
 239 };
 240
 241 /*****************************************************************************
 242  * Exported prototypes
 243  *****************************************************************************/
 244 static sout_stream_id_sys_t *Add ( sout_stream_t *, es_format_t * );
 245 static int               Del ( sout_stream_t *, sout_stream_id_sys_t * );
 246 static int               Send( sout_stream_t *, sout_stream_id_sys_t *, block_t* );
 247
 248 /*****************************************************************************
 249  * Open:
 250  *****************************************************************************/
 251 static int Open( vlc_object_t *p_this )
 252 {
 253     sout_stream_t     *p_stream = (sout_stream_t*)p_this;
 254     sout_stream_sys_t *p_sys;
 255     char              *psz_string;
 256
 257     if( !p_stream->p_next )
 258     {
 259         msg_Err( p_stream, "cannot create chain" );
 260         return VLC_EGENERIC;
 261     }
 262     p_sys = calloc( 1, sizeof( *p_sys ) );
 263     p_sys->i_master_drift = 0;
 264
 265     config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
 266                    p_stream->p_cfg );
 267
 268     /* Audio transcoding parameters */
 269     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "aenc" );
 270     p_sys->psz_aenc = NULL;
 271     p_sys->p_audio_cfg = NULL;
 272     if( psz_string && *psz_string )
 273     {
 274         char *psz_next;
 275         psz_next = config_ChainCreate( &p_sys->psz_aenc, &p_sys->p_audio_cfg,
 276                                        psz_string );
 277         free( psz_next );
 278     }
 279     free( psz_string );
 280
 281     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "acodec" );
 282     p_sys->i_acodec = 0;
 283     if( psz_string && *psz_string )
 284     {
 285         char fcc[5] = "    \0";
 286         memcpy( fcc, psz_string, __MIN( strlen( psz_string ), 4 ) );
 287         p_sys->i_acodec = vlc_fourcc_GetCodecFromString( AUDIO_ES, fcc );
 288         msg_Dbg( p_stream, "Checking codec mapping for %s got %4.4s ", fcc, (char*)&p_sys->i_acodec);
 289     }
 290     free( psz_string );
 291
 292     p_sys->psz_alang = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "alang" );
 293
 294     p_sys->i_abitrate = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ab" );
 295     if( p_sys->i_abitrate < 4000 ) p_sys->i_abitrate *= 1000;
 296
 297     p_sys->i_sample_rate = var_GetInteger( p_stream, SOUT_CFG_PREFIX "samplerate" );
 298
 299     p_sys->i_channels = var_GetInteger( p_stream, SOUT_CFG_PREFIX "channels" );
 300
 301     if( p_sys->i_acodec )
 302     {
 303         if( ( p_sys->i_acodec == VLC_CODEC_MP3 ||
 304               p_sys->i_acodec == VLC_CODEC_MP2 ||
 305               p_sys->i_acodec == VLC_CODEC_MPGA ) && p_sys->i_channels > 2 )
 306         {
 307             msg_Warn( p_stream, "%d channels invalid for mp2/mp3, forcing to 2",
 308                       p_sys->i_channels );
 309             p_sys->i_channels = 2;
 310         }
 311         msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
 312                  (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
 313                  p_sys->i_channels, p_sys->i_abitrate / 1000 );
 314     }
 315
 316     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "afilter" );
 317     if( psz_string && *psz_string )
 318         p_sys->psz_af = strdup( psz_string );
 319     else
 320         p_sys->psz_af = NULL;
 321     free( psz_string );
 322
 323     /* Video transcoding parameters */
 324     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "venc" );
 325     p_sys->psz_venc = NULL;
 326     p_sys->p_video_cfg = NULL;
 327     if( psz_string && *psz_string )
 328     {
 329         char *psz_next;
 330         psz_next = config_ChainCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
 331                                    psz_string );
 332         free( psz_next );
 333     }
 334     free( psz_string );
 335
 336     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "vcodec" );
 337     p_sys->i_vcodec = 0;
 338     if( psz_string && *psz_string )
 339     {
 340         char fcc[5] = "    \0";
 341         memcpy( fcc, psz_string, __MIN( strlen( psz_string ), 4 ) );
 342         p_sys->i_vcodec = vlc_fourcc_GetCodecFromString( VIDEO_ES, fcc );
 343         msg_Dbg( p_stream, "Checking video codec mapping for %s got %4.4s ", fcc, (char*)&p_sys->i_vcodec);
 344     }
 345     free( psz_string );
 346
 347     p_sys->i_vbitrate = var_GetInteger( p_stream, SOUT_CFG_PREFIX "vb" );
 348     if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
 349
 350     p_sys->f_scale = var_GetFloat( p_stream, SOUT_CFG_PREFIX "scale" );
 351
 352     p_sys->b_master_sync = var_InheritURational( p_stream, &p_sys->fps_num, &p_sys->fps_den, SOUT_CFG_PREFIX "fps" );
 353
 354     p_sys->b_hurry_up = var_GetBool( p_stream, SOUT_CFG_PREFIX "hurry-up" );
 355
 356     p_sys->i_width = var_GetInteger( p_stream, SOUT_CFG_PREFIX "width" );
 357
 358     p_sys->i_height = var_GetInteger( p_stream, SOUT_CFG_PREFIX "height" );
 359
 360     p_sys->i_maxwidth = var_GetInteger( p_stream, SOUT_CFG_PREFIX "maxwidth" );
 361
 362     p_sys->i_maxheight = var_GetInteger( p_stream, SOUT_CFG_PREFIX "maxheight" );
 363
 364     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "vfilter" );
 365     if( psz_string && *psz_string )
 366         p_sys->psz_vf2 = strdup(psz_string );
 367     else
 368         p_sys->psz_vf2 = NULL;
 369     free( psz_string );
 370
 371     p_sys->b_deinterlace = var_GetBool( p_stream, SOUT_CFG_PREFIX "deinterlace" );
 372
 373     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "deinterlace-module" );
 374     p_sys->psz_deinterlace = NULL;
 375     p_sys->p_deinterlace_cfg = NULL;
 376     if( psz_string && *psz_string )
 377     {
 378         char *psz_next;
 379         psz_next = config_ChainCreate( &p_sys->psz_deinterlace,
 380                                    &p_sys->p_deinterlace_cfg,
 381                                    psz_string );
 382         free( psz_next );
 383     }
 384     free( psz_string );
 385
 386     p_sys->i_threads = var_GetInteger( p_stream, SOUT_CFG_PREFIX "threads" );
 387     p_sys->b_high_priority = var_GetBool( p_stream, SOUT_CFG_PREFIX "high-priority" );
 388
 389     if( p_sys->i_vcodec )
 390     {
 391         msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
 392                  (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
 393                  p_sys->f_scale, p_sys->i_vbitrate / 1000 );
 394     }
 395
 396     /* Subpictures transcoding parameters */
 397     p_sys->p_spu = NULL;
 398     p_sys->p_spu_blend = NULL;
 399     p_sys->psz_senc = NULL;
 400     p_sys->p_spu_cfg = NULL;
 401     p_sys->i_scodec = 0;
 402
 403     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "senc" );
 404     if( psz_string && *psz_string )
 405     {
 406         char *psz_next;
 407         psz_next = config_ChainCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
 408                                    psz_string );
 409         free( psz_next );
 410     }
 411     free( psz_string );
 412
 413     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "scodec" );
 414     if( psz_string && *psz_string )
 415     {
 416         char fcc[5] = "    \0";
 417         memcpy( fcc, psz_string, __MIN( strlen( psz_string ), 4 ) );
 418         p_sys->i_scodec = vlc_fourcc_GetCodecFromString( SPU_ES, fcc );
 419         msg_Dbg( p_stream, "Checking spu codec mapping for %s got %4.4s ", fcc, (char*)&p_sys->i_scodec);
 420     }
 421     free( psz_string );
 422
 423     if( p_sys->i_scodec )
 424     {
 425         msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_scodec );
 426     }
 427
 428     p_sys->b_soverlay = var_GetBool( p_stream, SOUT_CFG_PREFIX "soverlay" );
 429
 430     psz_string = var_GetString( p_stream, SOUT_CFG_PREFIX "sfilter" );
 431     if( psz_string && *psz_string )
 432     {
 433         p_sys->p_spu = spu_Create( p_stream );
 434         if( p_sys->p_spu )
 435             spu_ChangeSources( p_sys->p_spu, psz_string );
 436     }
 437     free( psz_string );
 438
 439     /* OSD menu transcoding parameters */
 440     p_sys->psz_osdenc = NULL;
 441     p_sys->p_osd_cfg  = NULL;
 442     p_sys->i_osdcodec = 0;
 443     p_sys->b_osd   = var_GetBool( p_stream, SOUT_CFG_PREFIX "osd" );
 444
 445     if( p_sys->b_osd )
 446     {
 447         char *psz_next;
 448
 449         psz_next = config_ChainCreate( &p_sys->psz_osdenc,
 450                                    &p_sys->p_osd_cfg, "dvbsub" );
 451         free( psz_next );
 452
 453         p_sys->i_osdcodec = VLC_CODEC_YUVP;
 454
 455         msg_Dbg( p_stream, "codec osd=%4.4s", (char *)&p_sys->i_osdcodec );
 456
 457         if( !p_sys->p_spu )
 458         {
 459             p_sys->p_spu = spu_Create( p_stream );
 460             if( p_sys->p_spu )
 461                 spu_ChangeSources( p_sys->p_spu, "osdmenu" );
 462         }
 463         else
 464         {
 465             spu_ChangeSources( p_sys->p_spu, "osdmenu" );
 466         }
 467     }
 468
 469     /* Audio settings */
 470     p_sys->b_master_sync = __MAX( p_sys->b_master_sync == VLC_SUCCESS, var_GetBool( p_stream, SOUT_CFG_PREFIX "audio-sync" ) );
 471
 472     p_stream->pf_add    = Add;
 473     p_stream->pf_del    = Del;
 474     p_stream->pf_send   = Send;
 475     p_stream->p_sys     = p_sys;
 476
 477     return VLC_SUCCESS;
 478 }
 479
 480 /*****************************************************************************
 481  * Close:
 482  *****************************************************************************/
 483 static void Close( vlc_object_t * p_this )
 484 {
 485     sout_stream_t       *p_stream = (sout_stream_t*)p_this;
 486     sout_stream_sys_t   *p_sys = p_stream->p_sys;
 487
 488     free( p_sys->psz_af );
 489
 490     config_ChainDestroy( p_sys->p_audio_cfg );
 491     free( p_sys->psz_aenc );
 492     free( p_sys->psz_alang );
 493
 494     free( p_sys->psz_vf2 );
 495
 496     config_ChainDestroy( p_sys->p_video_cfg );
 497     free( p_sys->psz_venc );
 498
 499     config_ChainDestroy( p_sys->p_deinterlace_cfg );
 500     free( p_sys->psz_deinterlace );
 501
 502     config_ChainDestroy( p_sys->p_spu_cfg );
 503     free( p_sys->psz_senc );
 504
 505     if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
 506     if( p_sys->p_spu_blend ) filter_DeleteBlend( p_sys->p_spu_blend );
 507
 508     config_ChainDestroy( p_sys->p_osd_cfg );
 509     free( p_sys->psz_osdenc );
 510
 511     free( p_sys );
 512 }
 513
 514 static sout_stream_id_sys_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
 515 {
 516     sout_stream_sys_t *p_sys = p_stream->p_sys;
 517     sout_stream_id_sys_t *id;
 518
 519     id = calloc( 1, sizeof( sout_stream_id_sys_t ) );
 520     if( !id )
 521         goto error;
 522
 523     id->id = NULL;
 524     id->p_decoder = NULL;
 525     id->p_encoder = NULL;
 526
 527     /* Create decoder object */
 528     id->p_decoder = vlc_object_create( p_stream, sizeof( decoder_t ) );
 529     if( !id->p_decoder )
 530         goto error;
 531     id->p_decoder->p_module = NULL;
 532     id->p_decoder->fmt_in = *p_fmt;
 533     id->p_decoder->b_pace_control = true;
 534
 535     /* Create encoder object */
 536     id->p_encoder = sout_EncoderCreate( p_stream );
 537     if( !id->p_encoder )
 538         goto error;
 539     id->p_encoder->p_module = NULL;
 540
 541     /* Create destination format */
 542     es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
 543     id->p_encoder->fmt_out.i_id    = p_fmt->i_id;
 544     id->p_encoder->fmt_out.i_group = p_fmt->i_group;
 545
 546     if( p_sys->psz_alang )
 547         id->p_encoder->fmt_out.psz_language = strdup( p_sys->psz_alang );
 548     else if( p_fmt->psz_language )
 549         id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
 550
 551     bool success;
 552
 553     if( p_fmt->i_cat == AUDIO_ES && p_sys->i_acodec )
 554         success = transcode_audio_add(p_stream, p_fmt, id);
 555     else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_vcodec )
 556         success = transcode_video_add(p_stream, p_fmt, id);
 557     else if( ( p_fmt->i_cat == SPU_ES ) &&
 558              ( p_sys->i_scodec || p_sys->b_soverlay ) )
 559         success = transcode_spu_add(p_stream, p_fmt, id);
 560     else if( !p_sys->b_osd && (p_sys->i_osdcodec != 0 || p_sys->psz_osdenc) )
 561         success = transcode_osd_add(p_stream, p_fmt, id);
 562     else
 563     {
 564         msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
 565                  (char*)&p_fmt->i_codec );
 566         id->id = sout_StreamIdAdd( p_stream->p_next, p_fmt );
 567         id->b_transcode = false;
 568
 569         success = id->id;
 570     }
 571
 572     if(!success)
 573         goto error;
 574
 575     return id;
 576
 577 error:
 578     if( id )
 579     {
 580         if( id->p_decoder )
 581         {
 582             vlc_object_release( id->p_decoder );
 583             id->p_decoder = NULL;
 584         }
 585
 586         if( id->p_encoder )
 587         {
 588             es_format_Clean( &id->p_encoder->fmt_out );
 589             vlc_object_release( id->p_encoder );
 590             id->p_encoder = NULL;
 591         }
 592
 593         free( id );
 594     }
 595     return NULL;
 596 }
 597
 598 static int Del( sout_stream_t *p_stream, sout_stream_id_sys_t *id )
 599 {
 600     sout_stream_sys_t *p_sys = p_stream->p_sys;
 601
 602     if( id->b_transcode )
 603     {
 604         switch( id->p_decoder->fmt_in.i_cat )
 605         {
 606         case AUDIO_ES:
 607             Send( p_stream, id, NULL );
 608             transcode_audio_close( id );
 609             break;
 610         case VIDEO_ES:
 611             Send( p_stream, id, NULL );
 612             transcode_video_close( p_stream, id );
 613             break;
 614         case SPU_ES:
 615             if( p_sys->b_osd )
 616                 transcode_osd_close( p_stream, id );
 617             else
 618                 transcode_spu_close( p_stream, id );
 619             break;
 620         }
 621     }
 622
 623     if( id->id ) sout_StreamIdDel( p_stream->p_next, id->id );
 624
 625     if( id->p_decoder )
 626     {
 627         vlc_object_release( id->p_decoder );
 628         id->p_decoder = NULL;
 629     }
 630
 631     if( id->p_encoder )
 632     {
 633         es_format_Clean( &id->p_encoder->fmt_out );
 634         vlc_object_release( id->p_encoder );
 635         id->p_encoder = NULL;
 636     }
 637     free( id );
 638
 639     return VLC_SUCCESS;
 640 }
 641
 642 static int Send( sout_stream_t *p_stream, sout_stream_id_sys_t *id,
 643                  block_t *p_buffer )
 644 {
 645     sout_stream_sys_t *p_sys = p_stream->p_sys;
 646     block_t *p_out = NULL;
 647
 648     if( !id->b_transcode )
 649     {
 650         if( id->id )
 651             return sout_StreamIdSend( p_stream->p_next, id->id, p_buffer );
 652
 653         block_Release( p_buffer );
 654         return VLC_EGENERIC;
 655     }
 656
 657     switch( id->p_decoder->fmt_in.i_cat )
 658     {
 659     case AUDIO_ES:
 660         transcode_audio_process( p_stream, id, p_buffer, &p_out );
 661         break;
 662
 663     case VIDEO_ES:
 664         if( transcode_video_process( p_stream, id, p_buffer, &p_out )
 665             != VLC_SUCCESS )
 666         {
 667             return VLC_EGENERIC;
 668         }
 669         break;
 670
 671     case SPU_ES:
 672         /* Transcode OSD menu pictures. */
 673         if( p_sys->b_osd )
 674         {
 675             if( transcode_osd_process( p_stream, id, p_buffer, &p_out ) !=
 676                 VLC_SUCCESS )
 677             {
 678                 return VLC_EGENERIC;
 679             }
 680         }
 681         else if ( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
 682             VLC_SUCCESS )
 683         {
 684             return VLC_EGENERIC;
 685         }
 686         break;
 687
 688     default:
 689         p_out = NULL;
 690         block_Release( p_buffer );
 691         break;
 692     }
 693
 694     if( p_out )
 695         return sout_StreamIdSend( p_stream->p_next, id->id, p_out );
 696     return VLC_SUCCESS;
 697 }