git.sesse.net Git - vlc/blob - modules/stream_out/transcode.c

   1 /*****************************************************************************
   2  * transcode.c: transcoding stream output module
   3  *****************************************************************************
   4  * Copyright (C) 2003-2008 the VideoLAN team
   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  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  25  *****************************************************************************/
  26
  27 /*****************************************************************************
  28  * Preamble
  29  *****************************************************************************/
  30 #ifdef HAVE_CONFIG_H
  31 # include "config.h"
  32 #endif
  33
  34 #include <vlc_common.h>
  35 #include <vlc_plugin.h>
  36 #include <vlc_input.h>
  37 #include <vlc_sout.h>
  38 #include <vlc_aout.h>
  39 #include <vlc_vout.h>
  40 #include <vlc_codec.h>
  41 #include <vlc_meta.h>
  42 #include <vlc_block.h>
  43 #include <vlc_filter.h>
  44 #include <vlc_osd.h>
  45
  46 #include <math.h>
  47
  48 #define MASTER_SYNC_MAX_DRIFT 100000
  49
  50 #include <assert.h>
  51
  52 /*****************************************************************************
  53  * Module descriptor
  54  *****************************************************************************/
  55 #define VENC_TEXT N_("Video encoder")
  56 #define VENC_LONGTEXT N_( \
  57     "This is the video encoder module that will be used (and its associated "\
  58     "options).")
  59 #define VCODEC_TEXT N_("Destination video codec")
  60 #define VCODEC_LONGTEXT N_( \
  61     "This is the video codec that will be used.")
  62 #define VB_TEXT N_("Video bitrate")
  63 #define VB_LONGTEXT N_( \
  64     "Target bitrate of the transcoded video stream." )
  65 #define SCALE_TEXT N_("Video scaling")
  66 #define SCALE_LONGTEXT N_( \
  67     "Scale factor to apply to the video while transcoding (eg: 0.25)")
  68 #define FPS_TEXT N_("Video frame-rate")
  69 #define FPS_LONGTEXT N_( \
  70     "Target output frame rate for the video stream." )
  71 #define DEINTERLACE_TEXT N_("Deinterlace video")
  72 #define DEINTERLACE_LONGTEXT N_( \
  73     "Deinterlace the video before encoding." )
  74 #define DEINTERLACE_MODULE_TEXT N_("Deinterlace module")
  75 #define DEINTERLACE_MODULE_LONGTEXT N_( \
  76     "Specify the deinterlace module to use." )
  77 #define WIDTH_TEXT N_("Video width")
  78 #define WIDTH_LONGTEXT N_( \
  79     "Output video width." )
  80 #define HEIGHT_TEXT N_("Video height")
  81 #define HEIGHT_LONGTEXT N_( \
  82     "Output video height." )
  83 #define MAXWIDTH_TEXT N_("Maximum video width")
  84 #define MAXWIDTH_LONGTEXT N_( \
  85     "Maximum output video width." )
  86 #define MAXHEIGHT_TEXT N_("Maximum video height")
  87 #define MAXHEIGHT_LONGTEXT N_( \
  88     "Maximum output video height." )
  89 #define VFILTER_TEXT N_("Video filter")
  90 #define VFILTER_LONGTEXT N_( \
  91     "Video filters will be applied to the video streams (after overlays " \
  92     "are applied). You must enter a comma-separated list of filters." )
  93
  94 #define AENC_TEXT N_("Audio encoder")
  95 #define AENC_LONGTEXT N_( \
  96     "This is the audio encoder module that will be used (and its associated "\
  97     "options).")
  98 #define ACODEC_TEXT N_("Destination audio codec")
  99 #define ACODEC_LONGTEXT N_( \
 100     "This is the audio codec that will be used.")
 101 #define AB_TEXT N_("Audio bitrate")
 102 #define AB_LONGTEXT N_( \
 103     "Target bitrate of the transcoded audio stream." )
 104 #define ARATE_TEXT N_("Audio sample rate")
 105 #define ARATE_LONGTEXT N_( \
 106  "Sample rate of the transcoded audio stream (11250, 22500, 44100 or 48000).")
 107 #define ACHANS_TEXT N_("Audio channels")
 108 #define ACHANS_LONGTEXT N_( \
 109     "Number of audio channels in the transcoded streams." )
 110 #define AFILTER_TEXT N_("Audio filter")
 111 #define AFILTER_LONGTEXT N_( \
 112     "Audio filters will be applied to the audio streams (after conversion " \
 113     "filters are applied). You must enter a comma-separated list of filters." )
 114
 115 #define SENC_TEXT N_("Subtitles encoder")
 116 #define SENC_LONGTEXT N_( \
 117     "This is the subtitles encoder module that will be used (and its " \
 118     "associated options)." )
 119 #define SCODEC_TEXT N_("Destination subtitles codec")
 120 #define SCODEC_LONGTEXT N_( \
 121     "This is the subtitles codec that will be used." )
 122
 123 #define SFILTER_TEXT N_("Overlays")
 124 #define SFILTER_LONGTEXT N_( \
 125     "This allows you to add overlays (also known as \"subpictures\" on the "\
 126     "transcoded video stream. The subpictures produced by the filters will "\
 127     "be overlayed directly onto the video. You must specify a comma-separated "\
 128     "list of subpicture modules" )
 129
 130 #define OSD_TEXT N_("OSD menu")
 131 #define OSD_LONGTEXT N_(\
 132     "Stream the On Screen Display menu (using the osdmenu subpicture module)." )
 133
 134 #define THREADS_TEXT N_("Number of threads")
 135 #define THREADS_LONGTEXT N_( \
 136     "Number of threads used for the transcoding." )
 137 #define HP_TEXT N_("High priority")
 138 #define HP_LONGTEXT N_( \
 139     "Runs the optional encoder thread at the OUTPUT priority instead of " \
 140     "VIDEO." )
 141
 142 #define ASYNC_TEXT N_("Synchronise on audio track")
 143 #define ASYNC_LONGTEXT N_( \
 144     "This option will drop/duplicate video frames to synchronise the video " \
 145     "track on the audio track." )
 146
 147 #define HURRYUP_TEXT N_( "Hurry up" )
 148 #define HURRYUP_LONGTEXT N_( "The transcoder will drop frames if your CPU " \
 149                 "can't keep up with the encoding rate." )
 150
 151 static const char *const ppsz_deinterlace_type[] =
 152 {
 153     "deinterlace", "ffmpeg-deinterlace"
 154 };
 155
 156 static int  Open ( vlc_object_t * );
 157 static void Close( vlc_object_t * );
 158
 159 #define SOUT_CFG_PREFIX "sout-transcode-"
 160
 161 vlc_module_begin ()
 162     set_shortname( N_("Transcode"))
 163     set_description( N_("Transcode stream output") )
 164     set_capability( "sout stream", 50 )
 165     add_shortcut( "transcode" )
 166     set_callbacks( Open, Close )
 167     set_category( CAT_SOUT )
 168     set_subcategory( SUBCAT_SOUT_STREAM )
 169     set_section( N_("Video"), NULL )
 170     add_module( SOUT_CFG_PREFIX "venc", "encoder", NULL, NULL, VENC_TEXT,
 171                 VENC_LONGTEXT, false )
 172     add_string( SOUT_CFG_PREFIX "vcodec", NULL, NULL, VCODEC_TEXT,
 173                 VCODEC_LONGTEXT, false )
 174     add_integer( SOUT_CFG_PREFIX "vb", 0, NULL, VB_TEXT,
 175                  VB_LONGTEXT, false )
 176     add_float( SOUT_CFG_PREFIX "scale", 1, NULL, SCALE_TEXT,
 177                SCALE_LONGTEXT, false )
 178     add_float( SOUT_CFG_PREFIX "fps", 0, NULL, FPS_TEXT,
 179                FPS_LONGTEXT, false )
 180     add_bool( SOUT_CFG_PREFIX "hurry-up", true, NULL, HURRYUP_TEXT,
 181                HURRYUP_LONGTEXT, false )
 182     add_bool( SOUT_CFG_PREFIX "deinterlace", false, NULL, DEINTERLACE_TEXT,
 183               DEINTERLACE_LONGTEXT, false )
 184     add_string( SOUT_CFG_PREFIX "deinterlace-module", "deinterlace", NULL,
 185                 DEINTERLACE_MODULE_TEXT, DEINTERLACE_MODULE_LONGTEXT,
 186                 false )
 187         change_string_list( ppsz_deinterlace_type, 0, 0 )
 188     add_integer( SOUT_CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
 189                  WIDTH_LONGTEXT, true )
 190     add_integer( SOUT_CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
 191                  HEIGHT_LONGTEXT, true )
 192     add_integer( SOUT_CFG_PREFIX "maxwidth", 0, NULL, MAXWIDTH_TEXT,
 193                  MAXWIDTH_LONGTEXT, true )
 194     add_integer( SOUT_CFG_PREFIX "maxheight", 0, NULL, MAXHEIGHT_TEXT,
 195                  MAXHEIGHT_LONGTEXT, true )
 196     add_module_list( SOUT_CFG_PREFIX "vfilter", "video filter2",
 197                      NULL, NULL,
 198                      VFILTER_TEXT, VFILTER_LONGTEXT, false )
 199
 200     set_section( N_("Audio"), NULL )
 201     add_module( SOUT_CFG_PREFIX "aenc", "encoder", NULL, NULL, AENC_TEXT,
 202                 AENC_LONGTEXT, false )
 203     add_string( SOUT_CFG_PREFIX "acodec", NULL, NULL, ACODEC_TEXT,
 204                 ACODEC_LONGTEXT, false )
 205     add_integer( SOUT_CFG_PREFIX "ab", 0, NULL, AB_TEXT,
 206                  AB_LONGTEXT, false )
 207     add_integer( SOUT_CFG_PREFIX "channels", 0, NULL, ACHANS_TEXT,
 208                  ACHANS_LONGTEXT, false )
 209     add_integer( SOUT_CFG_PREFIX "samplerate", 0, NULL, ARATE_TEXT,
 210                  ARATE_LONGTEXT, true )
 211     add_bool( SOUT_CFG_PREFIX "audio-sync", false, NULL, ASYNC_TEXT,
 212               ASYNC_LONGTEXT, false )
 213     add_module_list( SOUT_CFG_PREFIX "afilter",  "audio filter2",
 214                      NULL, NULL,
 215                      AFILTER_TEXT, AFILTER_LONGTEXT, false )
 216
 217     set_section( N_("Overlays/Subtitles"), NULL )
 218     add_module( SOUT_CFG_PREFIX "senc", "encoder", NULL, NULL, SENC_TEXT,
 219                 SENC_LONGTEXT, false )
 220     add_string( SOUT_CFG_PREFIX "scodec", NULL, NULL, SCODEC_TEXT,
 221                 SCODEC_LONGTEXT, false )
 222     add_bool( SOUT_CFG_PREFIX "soverlay", false, NULL, SCODEC_TEXT,
 223                SCODEC_LONGTEXT, false )
 224     add_module_list( SOUT_CFG_PREFIX "sfilter", "video filter",
 225                      NULL, NULL,
 226                      SFILTER_TEXT, SFILTER_LONGTEXT, false )
 227
 228     set_section( N_("On Screen Display"), NULL )
 229     add_bool( SOUT_CFG_PREFIX "osd", false, NULL, OSD_TEXT,
 230               OSD_LONGTEXT, false )
 231
 232     set_section( N_("Miscellaneous"), NULL )
 233     add_integer( SOUT_CFG_PREFIX "threads", 0, NULL, THREADS_TEXT,
 234                  THREADS_LONGTEXT, true )
 235     add_bool( SOUT_CFG_PREFIX "high-priority", false, NULL, HP_TEXT, HP_LONGTEXT,
 236               true )
 237
 238 vlc_module_end ()
 239
 240 static const char *const ppsz_sout_options[] = {
 241     "venc", "vcodec", "vb",
 242     "scale", "fps", "width", "height", "vfilter", "deinterlace",
 243     "deinterlace-module", "threads", "hurry-up", "aenc", "acodec", "ab",
 244     "afilter", "samplerate", "channels", "senc", "scodec", "soverlay",
 245     "sfilter", "osd", "audio-sync", "high-priority", "maxwidth", "maxheight",
 246     NULL
 247 };
 248
 249 /*****************************************************************************
 250  * Exported prototypes
 251  *****************************************************************************/
 252 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
 253 static int               Del ( sout_stream_t *, sout_stream_id_t * );
 254 static int               Send( sout_stream_t *, sout_stream_id_t *, block_t* );
 255
 256 static int  transcode_audio_new    ( sout_stream_t *, sout_stream_id_t * );
 257 static void transcode_audio_close  ( sout_stream_id_t * );
 258 static int  transcode_audio_process( sout_stream_t *, sout_stream_id_t *,
 259                                      block_t *, block_t ** );
 260
 261 static aout_buffer_t *audio_new_buffer( decoder_t *, int );
 262 static void audio_del_buffer( decoder_t *, aout_buffer_t * );
 263
 264 static int  transcode_video_new    ( sout_stream_t *, sout_stream_id_t * );
 265 static void transcode_video_close  ( sout_stream_t *, sout_stream_id_t * );
 266 static void transcode_video_encoder_init( sout_stream_t *, sout_stream_id_t *);
 267 static int  transcode_video_encoder_open( sout_stream_t *, sout_stream_id_t *);
 268 static int  transcode_video_process( sout_stream_t *, sout_stream_id_t *,
 269                                      block_t *, block_t ** );
 270
 271 static picture_t *video_new_buffer_decoder( decoder_t * );
 272 static void video_del_buffer_decoder( decoder_t *, picture_t * );
 273 static void video_link_picture_decoder( decoder_t *, picture_t * );
 274 static void video_unlink_picture_decoder( decoder_t *, picture_t * );
 275
 276 static int  transcode_spu_new    ( sout_stream_t *, sout_stream_id_t * );
 277 static void transcode_spu_close  ( sout_stream_id_t * );
 278 static int  transcode_spu_process( sout_stream_t *, sout_stream_id_t *,
 279                                    block_t *, block_t ** );
 280
 281 static int  transcode_osd_new    ( sout_stream_t *, sout_stream_id_t * );
 282 static void transcode_osd_close  ( sout_stream_t *, sout_stream_id_t * );
 283 static int  transcode_osd_process( sout_stream_t *, sout_stream_id_t *,
 284                                    block_t *, block_t ** );
 285
 286 static void* EncoderThread( vlc_object_t * p_this );
 287
 288 static const int pi_channels_maps[6] =
 289 {
 290     0,
 291     AOUT_CHAN_CENTER,   AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
 292     AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
 293     AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
 294      | AOUT_CHAN_REARRIGHT,
 295     AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
 296      | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
 297 };
 298
 299 #define PICTURE_RING_SIZE 64
 300 #define SUBPICTURE_RING_SIZE 20
 301
 302 #define ENC_FRAMERATE (25 * 1000 + .5)
 303 #define ENC_FRAMERATE_BASE 1000
 304
 305 struct sout_stream_sys_t
 306 {
 307     VLC_COMMON_MEMBERS
 308
 309     sout_stream_t   *p_out;
 310     sout_stream_id_t *id_video;
 311     block_t         *p_buffers;
 312     vlc_mutex_t     lock_out;
 313     vlc_cond_t      cond;
 314     picture_t *     pp_pics[PICTURE_RING_SIZE];
 315     int             i_first_pic, i_last_pic;
 316
 317     /* Audio */
 318     vlc_fourcc_t    i_acodec;   /* codec audio (0 if not transcode) */
 319     char            *psz_aenc;
 320     config_chain_t  *p_audio_cfg;
 321     uint32_t        i_sample_rate;
 322     uint32_t        i_channels;
 323     int             i_abitrate;
 324
 325     char            *psz_af2;
 326
 327     /* Video */
 328     vlc_fourcc_t    i_vcodec;   /* codec video (0 if not transcode) */
 329     char            *psz_venc;
 330     config_chain_t  *p_video_cfg;
 331     int             i_vbitrate;
 332     double          f_scale;
 333     double          f_fps;
 334     unsigned int    i_width, i_maxwidth;
 335     unsigned int    i_height, i_maxheight;
 336     bool            b_deinterlace;
 337     char            *psz_deinterlace;
 338     config_chain_t  *p_deinterlace_cfg;
 339     int             i_threads;
 340     bool            b_high_priority;
 341     bool            b_hurry_up;
 342
 343     char            *psz_vf2;
 344
 345     /* SPU */
 346     vlc_fourcc_t    i_scodec;   /* codec spu (0 if not transcode) */
 347     char            *psz_senc;
 348     bool            b_soverlay;
 349     config_chain_t  *p_spu_cfg;
 350     spu_t           *p_spu;
 351
 352     /* OSD Menu */
 353     vlc_fourcc_t    i_osdcodec; /* codec osd menu (0 if not transcode) */
 354     char            *psz_osdenc;
 355     config_chain_t  *p_osd_cfg;
 356     bool            b_osd;   /* true when osd es is registered */
 357
 358     /* Sync */
 359     bool            b_master_sync;
 360     mtime_t         i_master_drift;
 361 };
 362
 363 struct decoder_owner_sys_t
 364 {
 365     sout_stream_sys_t *p_sys;
 366 };
 367
 368 /*****************************************************************************
 369  * Open:
 370  *****************************************************************************/
 371 static int Open( vlc_object_t *p_this )
 372 {
 373     sout_stream_t     *p_stream = (sout_stream_t*)p_this;
 374     sout_stream_sys_t *p_sys;
 375     vlc_value_t       val;
 376
 377     p_sys = vlc_object_create( p_this, sizeof( sout_stream_sys_t ) );
 378
 379     p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
 380     if( !p_sys->p_out )
 381     {
 382         msg_Err( p_stream, "cannot create chain" );
 383         vlc_object_release( p_sys );
 384         return VLC_EGENERIC;
 385     }
 386
 387     p_sys->i_master_drift = 0;
 388
 389     config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
 390                    p_stream->p_cfg );
 391
 392     /* Audio transcoding parameters */
 393     var_Get( p_stream, SOUT_CFG_PREFIX "aenc", &val );
 394     p_sys->psz_aenc = NULL;
 395     p_sys->p_audio_cfg = NULL;
 396     if( val.psz_string && *val.psz_string )
 397     {
 398         char *psz_next;
 399         psz_next = config_ChainCreate( &p_sys->psz_aenc, &p_sys->p_audio_cfg,
 400                                        val.psz_string );
 401         free( psz_next );
 402     }
 403     free( val.psz_string );
 404
 405     var_Get( p_stream, SOUT_CFG_PREFIX "acodec", &val );
 406     p_sys->i_acodec = 0;
 407     if( val.psz_string && *val.psz_string )
 408     {
 409         char fcc[4] = "    ";
 410         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
 411         p_sys->i_acodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
 412     }
 413     free( val.psz_string );
 414
 415     var_Get( p_stream, SOUT_CFG_PREFIX "ab", &val );
 416     p_sys->i_abitrate = val.i_int;
 417     if( p_sys->i_abitrate < 4000 ) p_sys->i_abitrate *= 1000;
 418
 419     var_Get( p_stream, SOUT_CFG_PREFIX "samplerate", &val );
 420     p_sys->i_sample_rate = val.i_int;
 421
 422     var_Get( p_stream, SOUT_CFG_PREFIX "channels", &val );
 423     p_sys->i_channels = val.i_int;
 424
 425     if( p_sys->i_acodec )
 426     {
 427         if( ( p_sys->i_acodec == VLC_CODEC_MP3 ||
 428               p_sys->i_acodec == VLC_CODEC_MPGA ) && p_sys->i_channels > 2 )
 429         {
 430             msg_Warn( p_stream, "%d channels invalid for mp3, forcing to 2",
 431                       p_sys->i_channels );
 432             p_sys->i_channels = 2;
 433         }
 434         msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
 435                  (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
 436                  p_sys->i_channels, p_sys->i_abitrate / 1000 );
 437     }
 438
 439     var_Get( p_stream, SOUT_CFG_PREFIX "afilter", &val );
 440     if( val.psz_string && *val.psz_string )
 441         p_sys->psz_af2 = val.psz_string;
 442     else
 443     {
 444         free( val.psz_string );
 445         p_sys->psz_af2 = NULL;
 446     }
 447
 448     /* Video transcoding parameters */
 449     var_Get( p_stream, SOUT_CFG_PREFIX "venc", &val );
 450     p_sys->psz_venc = NULL;
 451     p_sys->p_video_cfg = NULL;
 452     if( val.psz_string && *val.psz_string )
 453     {
 454         char *psz_next;
 455         psz_next = config_ChainCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
 456                                    val.psz_string );
 457         free( psz_next );
 458     }
 459     free( val.psz_string );
 460
 461     var_Get( p_stream, SOUT_CFG_PREFIX "vcodec", &val );
 462     p_sys->i_vcodec = 0;
 463     if( val.psz_string && *val.psz_string )
 464     {
 465         char fcc[4] = "    ";
 466         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
 467         p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
 468     }
 469     free( val.psz_string );
 470
 471     var_Get( p_stream, SOUT_CFG_PREFIX "vb", &val );
 472     p_sys->i_vbitrate = val.i_int;
 473     if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
 474
 475     var_Get( p_stream, SOUT_CFG_PREFIX "scale", &val );
 476     p_sys->f_scale = val.f_float;
 477
 478     var_Get( p_stream, SOUT_CFG_PREFIX "fps", &val );
 479     p_sys->f_fps = val.f_float;
 480
 481     var_Get( p_stream, SOUT_CFG_PREFIX "hurry-up", &val );
 482     p_sys->b_hurry_up = val.b_bool;
 483
 484     var_Get( p_stream, SOUT_CFG_PREFIX "width", &val );
 485     p_sys->i_width = val.i_int;
 486
 487     var_Get( p_stream, SOUT_CFG_PREFIX "height", &val );
 488     p_sys->i_height = val.i_int;
 489
 490     var_Get( p_stream, SOUT_CFG_PREFIX "maxwidth", &val );
 491     p_sys->i_maxwidth = val.i_int;
 492
 493     var_Get( p_stream, SOUT_CFG_PREFIX "maxheight", &val );
 494     p_sys->i_maxheight = val.i_int;
 495
 496     var_Get( p_stream, SOUT_CFG_PREFIX "vfilter", &val );
 497     if( val.psz_string && *val.psz_string )
 498         p_sys->psz_vf2 = val.psz_string;
 499     else
 500     {
 501         free( val.psz_string );
 502         p_sys->psz_vf2 = NULL;
 503     }
 504
 505     var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace", &val );
 506     p_sys->b_deinterlace = val.b_bool;
 507
 508     var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace-module", &val );
 509     p_sys->psz_deinterlace = NULL;
 510     p_sys->p_deinterlace_cfg = NULL;
 511     if( val.psz_string && *val.psz_string )
 512     {
 513         char *psz_next;
 514         psz_next = config_ChainCreate( &p_sys->psz_deinterlace,
 515                                    &p_sys->p_deinterlace_cfg,
 516                                    val.psz_string );
 517         free( psz_next );
 518     }
 519     free( val.psz_string );
 520
 521     var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
 522     p_sys->i_threads = val.i_int;
 523     var_Get( p_stream, SOUT_CFG_PREFIX "high-priority", &val );
 524     p_sys->b_high_priority = val.b_bool;
 525
 526     if( p_sys->i_vcodec )
 527     {
 528         msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
 529                  (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
 530                  p_sys->f_scale, p_sys->i_vbitrate / 1000 );
 531     }
 532
 533     /* Subpictures transcoding parameters */
 534     p_sys->p_spu = NULL;
 535     p_sys->psz_senc = NULL;
 536     p_sys->p_spu_cfg = NULL;
 537     p_sys->i_scodec = 0;
 538
 539     var_Get( p_stream, SOUT_CFG_PREFIX "senc", &val );
 540     if( val.psz_string && *val.psz_string )
 541     {
 542         char *psz_next;
 543         psz_next = config_ChainCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
 544                                    val.psz_string );
 545         free( psz_next );
 546     }
 547     free( val.psz_string );
 548
 549     var_Get( p_stream, SOUT_CFG_PREFIX "scodec", &val );
 550     if( val.psz_string && *val.psz_string )
 551     {
 552         char fcc[4] = "    ";
 553         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
 554         p_sys->i_scodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
 555     }
 556     free( val.psz_string );
 557
 558     if( p_sys->i_scodec )
 559     {
 560         msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_scodec );
 561     }
 562
 563     var_Get( p_stream, SOUT_CFG_PREFIX "soverlay", &val );
 564     p_sys->b_soverlay = val.b_bool;
 565
 566     var_Get( p_stream, SOUT_CFG_PREFIX "sfilter", &val );
 567     if( val.psz_string && *val.psz_string )
 568     {
 569         p_sys->p_spu = spu_Create( p_stream );
 570         var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
 571         var_Set( p_sys->p_spu, "sub-filter", val );
 572         spu_Init( p_sys->p_spu );
 573     }
 574     free( val.psz_string );
 575
 576     /* OSD menu transcoding parameters */
 577     p_sys->psz_osdenc = NULL;
 578     p_sys->p_osd_cfg  = NULL;
 579     p_sys->i_osdcodec = 0;
 580     p_sys->b_osd   = false;
 581
 582     var_Get( p_stream, SOUT_CFG_PREFIX "osd", &val );
 583     if( val.b_bool )
 584     {
 585         vlc_value_t osd_val;
 586         char *psz_next;
 587
 588         psz_next = config_ChainCreate( &p_sys->psz_osdenc,
 589                                    &p_sys->p_osd_cfg, strdup( "dvbsub") );
 590         free( psz_next );
 591
 592         p_sys->i_osdcodec = VLC_CODEC_YUVP;
 593
 594         msg_Dbg( p_stream, "codec osd=%4.4s", (char *)&p_sys->i_osdcodec );
 595
 596         if( !p_sys->p_spu )
 597         {
 598             osd_val.psz_string = strdup("osdmenu");
 599             p_sys->p_spu = spu_Create( p_stream );
 600             var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
 601             var_Set( p_sys->p_spu, "sub-filter", osd_val );
 602             spu_Init( p_sys->p_spu );
 603             free( osd_val.psz_string );
 604         }
 605         else
 606         {
 607             osd_val.psz_string = strdup("osdmenu");
 608             var_Set( p_sys->p_spu, "sub-filter", osd_val );
 609             free( osd_val.psz_string );
 610         }
 611     }
 612
 613     /* Audio settings */
 614     var_Get( p_stream, SOUT_CFG_PREFIX "audio-sync", &val );
 615     p_sys->b_master_sync = val.b_bool;
 616     if( p_sys->f_fps > 0 ) p_sys->b_master_sync = true;
 617
 618     p_stream->pf_add    = Add;
 619     p_stream->pf_del    = Del;
 620     p_stream->pf_send   = Send;
 621     p_stream->p_sys     = p_sys;
 622
 623     return VLC_SUCCESS;
 624 }
 625
 626 /*****************************************************************************
 627  * Close:
 628  *****************************************************************************/
 629 static void Close( vlc_object_t * p_this )
 630 {
 631     sout_stream_t       *p_stream = (sout_stream_t*)p_this;
 632     sout_stream_sys_t   *p_sys = p_stream->p_sys;
 633
 634     sout_StreamDelete( p_sys->p_out );
 635
 636     free( p_sys->psz_af2 );
 637
 638     config_ChainDestroy( p_sys->p_audio_cfg );
 639     free( p_sys->psz_aenc );
 640
 641     free( p_sys->psz_vf2 );
 642
 643     config_ChainDestroy( p_sys->p_video_cfg );
 644     free( p_sys->psz_venc );
 645
 646     config_ChainDestroy( p_sys->p_deinterlace_cfg );
 647     free( p_sys->psz_deinterlace );
 648
 649     config_ChainDestroy( p_sys->p_spu_cfg );
 650     free( p_sys->psz_senc );
 651
 652     if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
 653
 654     config_ChainDestroy( p_sys->p_osd_cfg );
 655     free( p_sys->psz_osdenc );
 656
 657     vlc_object_release( p_sys );
 658 }
 659
 660 struct sout_stream_id_t
 661 {
 662     bool            b_transcode;
 663
 664     /* id of the out stream */
 665     void *id;
 666
 667     /* Decoder */
 668     decoder_t       *p_decoder;
 669
 670     /* Filters */
 671     filter_chain_t  *p_f_chain;
 672     /* User specified filters */
 673     filter_chain_t  *p_uf_chain;
 674
 675     /* Encoder */
 676     encoder_t       *p_encoder;
 677
 678     /* Sync */
 679     date_t          interpolated_pts;
 680 };
 681
 682 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
 683 {
 684     sout_stream_sys_t *p_sys = p_stream->p_sys;
 685     sout_stream_id_t *id;
 686
 687     id = calloc( 1, sizeof( sout_stream_id_t ) );
 688     if( !id )
 689         goto error;
 690
 691     id->id = NULL;
 692     id->p_decoder = NULL;
 693     id->p_encoder = NULL;
 694
 695     /* Create decoder object */
 696     id->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
 697     if( !id->p_decoder )
 698         goto error;
 699     vlc_object_attach( id->p_decoder, p_stream );
 700     id->p_decoder->p_module = NULL;
 701     id->p_decoder->fmt_in = *p_fmt;
 702     id->p_decoder->b_pace_control = true;
 703
 704     /* Create encoder object */
 705     id->p_encoder = sout_EncoderCreate( p_stream );
 706     if( !id->p_encoder )
 707         goto error;
 708     vlc_object_attach( id->p_encoder, p_stream );
 709     id->p_encoder->p_module = NULL;
 710
 711     /* Create destination format */
 712     es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
 713     id->p_encoder->fmt_out.i_id    = p_fmt->i_id;
 714     id->p_encoder->fmt_out.i_group = p_fmt->i_group;
 715     if( p_fmt->psz_language )
 716         id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
 717
 718     if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
 719     {
 720         msg_Dbg( p_stream,
 721                  "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
 722                  (char*)&p_fmt->i_codec, (char*)&p_sys->i_acodec );
 723
 724         /* Complete destination format */
 725         id->p_encoder->fmt_out.i_codec = p_sys->i_acodec;
 726         id->p_encoder->fmt_out.audio.i_rate = p_sys->i_sample_rate > 0 ?
 727             p_sys->i_sample_rate : p_fmt->audio.i_rate;
 728         id->p_encoder->fmt_out.i_bitrate = p_sys->i_abitrate;
 729         id->p_encoder->fmt_out.audio.i_bitspersample =
 730             p_fmt->audio.i_bitspersample;
 731         id->p_encoder->fmt_out.audio.i_channels = p_sys->i_channels > 0 ?
 732             p_sys->i_channels : p_fmt->audio.i_channels;
 733         /* Sanity check for audio channels */
 734         id->p_encoder->fmt_out.audio.i_channels =
 735             __MIN( id->p_encoder->fmt_out.audio.i_channels,
 736                    id->p_decoder->fmt_in.audio.i_channels );
 737         id->p_encoder->fmt_out.audio.i_original_channels =
 738             id->p_decoder->fmt_in.audio.i_physical_channels;
 739         if( id->p_decoder->fmt_in.audio.i_channels ==
 740             id->p_encoder->fmt_out.audio.i_channels )
 741         {
 742             id->p_encoder->fmt_out.audio.i_physical_channels =
 743                 id->p_decoder->fmt_in.audio.i_physical_channels;
 744         }
 745         else
 746         {
 747             id->p_encoder->fmt_out.audio.i_physical_channels =
 748                 pi_channels_maps[id->p_encoder->fmt_out.audio.i_channels];
 749         }
 750
 751         /* Build decoder -> filter -> encoder chain */
 752         if( transcode_audio_new( p_stream, id ) )
 753         {
 754             msg_Err( p_stream, "cannot create audio chain" );
 755             goto error;
 756         }
 757
 758         /* Open output stream */
 759         id->id = sout_StreamIdAdd( p_sys->p_out, &id->p_encoder->fmt_out );
 760         id->b_transcode = true;
 761
 762         if( !id->id )
 763         {
 764             transcode_audio_close( id );
 765             goto error;
 766         }
 767
 768         date_Init( &id->interpolated_pts, p_fmt->audio.i_rate, 1 );
 769     }
 770     else if( p_fmt->i_cat == VIDEO_ES &&
 771              (p_sys->i_vcodec != 0 || p_sys->psz_venc) )
 772     {
 773         msg_Dbg( p_stream,
 774                  "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
 775                  (char*)&p_fmt->i_codec, (char*)&p_sys->i_vcodec );
 776
 777         /* Complete destination format */
 778         id->p_encoder->fmt_out.i_codec = p_sys->i_vcodec;
 779         id->p_encoder->fmt_out.video.i_width  = p_sys->i_width & ~1;
 780         id->p_encoder->fmt_out.video.i_height = p_sys->i_height & ~1;
 781         id->p_encoder->fmt_out.i_bitrate = p_sys->i_vbitrate;
 782
 783         /* Build decoder -> filter -> encoder chain */
 784         if( transcode_video_new( p_stream, id ) )
 785         {
 786             msg_Err( p_stream, "cannot create video chain" );
 787             goto error;
 788         }
 789
 790         /* Stream will be added later on because we don't know
 791          * all the characteristics of the decoded stream yet */
 792         id->b_transcode = true;
 793
 794         if( p_sys->f_fps > 0 )
 795         {
 796             id->p_encoder->fmt_out.video.i_frame_rate =
 797                 (p_sys->f_fps * 1000) + 0.5;
 798             id->p_encoder->fmt_out.video.i_frame_rate_base =
 799                 ENC_FRAMERATE_BASE;
 800         }
 801     }
 802     else if( ( p_fmt->i_cat == SPU_ES ) &&
 803              ( p_sys->i_scodec || p_sys->psz_senc ) )
 804     {
 805         msg_Dbg( p_stream, "creating subtitles transcoding from fcc=`%4.4s' "
 806                  "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
 807                  (char*)&p_sys->i_scodec );
 808
 809         /* Complete destination format */
 810         id->p_encoder->fmt_out.i_codec = p_sys->i_scodec;
 811
 812         /* build decoder -> filter -> encoder */
 813         if( transcode_spu_new( p_stream, id ) )
 814         {
 815             msg_Err( p_stream, "cannot create subtitles chain" );
 816             goto error;
 817         }
 818
 819         /* open output stream */
 820         id->id = sout_StreamIdAdd( p_sys->p_out, &id->p_encoder->fmt_out );
 821         id->b_transcode = true;
 822
 823         if( !id->id )
 824         {
 825             transcode_spu_close( id );
 826             goto error;
 827         }
 828     }
 829     else if( p_fmt->i_cat == SPU_ES && p_sys->b_soverlay )
 830     {
 831         msg_Dbg( p_stream, "subtitles (fcc=`%4.4s') overlaying",
 832                  (char*)&p_fmt->i_codec );
 833
 834         id->b_transcode = true;
 835
 836         /* Build decoder -> filter -> overlaying chain */
 837         if( transcode_spu_new( p_stream, id ) )
 838         {
 839             msg_Err( p_stream, "cannot create subtitles chain" );
 840             goto error;
 841         }
 842     }
 843     else if( !p_sys->b_osd && (p_sys->i_osdcodec != 0 || p_sys->psz_osdenc) )
 844     {
 845         msg_Dbg( p_stream, "creating osd transcoding from fcc=`%4.4s' "
 846                  "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
 847                  (char*)&p_sys->i_scodec );
 848
 849         id->b_transcode = true;
 850
 851         /* Create a fake OSD menu elementary stream */
 852         if( transcode_osd_new( p_stream, id ) )
 853         {
 854             msg_Err( p_stream, "cannot create osd chain" );
 855             goto error;
 856         }
 857         p_sys->b_osd = true;
 858     }
 859     else
 860     {
 861         msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
 862                  (char*)&p_fmt->i_codec );
 863         id->id = sout_StreamIdAdd( p_sys->p_out, p_fmt );
 864         id->b_transcode = false;
 865
 866         if( !id->id ) goto error;
 867     }
 868
 869     return id;
 870
 871 error:
 872     if( id )
 873     {
 874         if( id->p_decoder )
 875         {
 876             vlc_object_detach( id->p_decoder );
 877             vlc_object_release( id->p_decoder );
 878             id->p_decoder = NULL;
 879         }
 880
 881         if( id->p_encoder )
 882         {
 883             vlc_object_detach( id->p_encoder );
 884             es_format_Clean( &id->p_encoder->fmt_out );
 885             vlc_object_release( id->p_encoder );
 886             id->p_encoder = NULL;
 887         }
 888
 889         free( id );
 890     }
 891     return NULL;
 892 }
 893
 894 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
 895 {
 896     sout_stream_sys_t *p_sys = p_stream->p_sys;
 897
 898     if( id->b_transcode )
 899     {
 900         switch( id->p_decoder->fmt_in.i_cat )
 901         {
 902         case AUDIO_ES:
 903             transcode_audio_close( id );
 904             break;
 905         case VIDEO_ES:
 906             transcode_video_close( p_stream, id );
 907             break;
 908         case SPU_ES:
 909             if( p_sys->b_osd )
 910                 transcode_osd_close( p_stream, id );
 911             else
 912                 transcode_spu_close( id );
 913             break;
 914         }
 915     }
 916
 917     if( id->id ) sout_StreamIdDel( p_sys->p_out, id->id );
 918
 919     if( id->p_decoder )
 920     {
 921         vlc_object_detach( id->p_decoder );
 922         vlc_object_release( id->p_decoder );
 923         id->p_decoder = NULL;
 924     }
 925
 926     if( id->p_encoder )
 927     {
 928         vlc_object_detach( id->p_encoder );
 929         es_format_Clean( &id->p_encoder->fmt_out );
 930         vlc_object_release( id->p_encoder );
 931         id->p_encoder = NULL;
 932     }
 933     free( id );
 934
 935     return VLC_SUCCESS;
 936 }
 937
 938 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
 939                  block_t *p_buffer )
 940 {
 941     sout_stream_sys_t *p_sys = p_stream->p_sys;
 942     block_t *p_out = NULL;
 943
 944     if( !id->b_transcode )
 945     {
 946         if( id->id )
 947             return sout_StreamIdSend( p_sys->p_out, id->id, p_buffer );
 948
 949         block_Release( p_buffer );
 950         return VLC_EGENERIC;
 951     }
 952
 953     switch( id->p_decoder->fmt_in.i_cat )
 954     {
 955     case AUDIO_ES:
 956         transcode_audio_process( p_stream, id, p_buffer, &p_out );
 957         break;
 958
 959     case VIDEO_ES:
 960         if( transcode_video_process( p_stream, id, p_buffer, &p_out )
 961             != VLC_SUCCESS )
 962         {
 963             return VLC_EGENERIC;
 964         }
 965         break;
 966
 967     case SPU_ES:
 968         /* Transcode OSD menu pictures. */
 969         if( p_sys->b_osd )
 970         {
 971             if( transcode_osd_process( p_stream, id, p_buffer, &p_out ) !=
 972                 VLC_SUCCESS )
 973             {
 974                 return VLC_EGENERIC;
 975             }
 976         }
 977         else if ( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
 978             VLC_SUCCESS )
 979         {
 980             return VLC_EGENERIC;
 981         }
 982         break;
 983
 984     default:
 985         p_out = NULL;
 986         block_Release( p_buffer );
 987         break;
 988     }
 989
 990     if( p_out )
 991         return sout_StreamIdSend( p_sys->p_out, id->id, p_out );
 992     return VLC_SUCCESS;
 993 }
 994
 995 /****************************************************************************
 996  * decoder helper
 997  ****************************************************************************/
 998 static inline void video_timer_start( encoder_t * p_encoder )
 999 {
1000     stats_TimerStart( p_encoder, "encoding video frame",
1001                       STATS_TIMER_VIDEO_FRAME_ENCODING );
1002 }
1003
1004 static inline void video_timer_stop( encoder_t * p_encoder )
1005 {
1006     stats_TimerStop( p_encoder, STATS_TIMER_VIDEO_FRAME_ENCODING );
1007 }
1008
1009 static inline void video_timer_close( encoder_t * p_encoder )
1010 {
1011     stats_TimerDump(  p_encoder, STATS_TIMER_VIDEO_FRAME_ENCODING );
1012     stats_TimerClean( p_encoder, STATS_TIMER_VIDEO_FRAME_ENCODING );
1013 }
1014
1015 static inline void audio_timer_start( encoder_t * p_encoder )
1016 {
1017     stats_TimerStart( p_encoder, "encoding audio frame",
1018                       STATS_TIMER_AUDIO_FRAME_ENCODING );
1019 }
1020
1021 static inline void audio_timer_stop( encoder_t * p_encoder )
1022 {
1023     stats_TimerStop( p_encoder, STATS_TIMER_AUDIO_FRAME_ENCODING );
1024 }
1025
1026 static inline void audio_timer_close( encoder_t * p_encoder )
1027 {
1028     stats_TimerDump(  p_encoder, STATS_TIMER_AUDIO_FRAME_ENCODING );
1029     stats_TimerClean( p_encoder, STATS_TIMER_AUDIO_FRAME_ENCODING );
1030 }
1031
1032 /****************************************************************************
1033  * decoder reencoder part
1034  ****************************************************************************/
1035
1036 static block_t *transcode_audio_alloc( filter_t *p_filter, int size )
1037 {
1038     VLC_UNUSED( p_filter );
1039     return block_Alloc( size );
1040 }
1041
1042 static int transcode_audio_filter_allocation_init( filter_t *p_filter,
1043                                                    void *data )
1044 {
1045     VLC_UNUSED(data);
1046     p_filter->pf_audio_buffer_new = transcode_audio_alloc;
1047     return VLC_SUCCESS;
1048 }
1049
1050 static bool transcode_audio_filter_needed( const es_format_t *p_fmt1, const es_format_t *p_fmt2 )
1051 {
1052     if( p_fmt1->i_codec != p_fmt2->i_codec ||
1053         p_fmt1->audio.i_channels != p_fmt2->audio.i_channels ||
1054         p_fmt1->audio.i_rate != p_fmt2->audio.i_rate )
1055         return true;
1056     return false;
1057 }
1058 static int transcode_audio_filter_chain_build( sout_stream_t *p_stream, filter_chain_t *p_chain,
1059                                                const es_format_t *p_dst, const es_format_t *p_src )
1060 {
1061     if( !transcode_audio_filter_needed( p_dst, p_src ) )
1062         return VLC_SUCCESS;
1063
1064     es_format_t current = *p_src;
1065
1066     msg_Dbg( p_stream, "Looking for filter "
1067              "(%4.4s->%4.4s, channels %d->%d, rate %d->%d)",
1068          (const char *)&p_src->i_codec,
1069          (const char *)&p_dst->i_codec,
1070          p_src->audio.i_channels,
1071          p_dst->audio.i_channels,
1072          p_src->audio.i_rate,
1073          p_dst->audio.i_rate );
1074
1075     /* If any filter is needed, convert to fl32 */
1076     if( current.i_codec != VLC_CODEC_FL32 )
1077     {
1078         /* First step, convert to fl32 */
1079         current.i_codec =
1080         current.audio.i_format = VLC_CODEC_FL32;
1081
1082         if( !filter_chain_AppendFilter( p_chain, NULL, NULL, NULL, &current ) )
1083         {
1084             msg_Err( p_stream, "Failed to find conversion filter to fl32" );
1085             return VLC_EGENERIC;
1086         }
1087         current = *filter_chain_GetFmtOut( p_chain );
1088     }
1089
1090     /* Fix sample rate */
1091     if( current.audio.i_rate != p_dst->audio.i_rate )
1092     {
1093         current.audio.i_rate = p_dst->audio.i_rate;
1094         if( !filter_chain_AppendFilter( p_chain, NULL, NULL, NULL, &current ) )
1095         {
1096             msg_Err( p_stream, "Failed to find conversion filter for resampling" );
1097             return VLC_EGENERIC;
1098         }
1099         current = *filter_chain_GetFmtOut( p_chain );
1100     }
1101
1102     /* Fix channels */
1103     if( current.audio.i_channels != p_dst->audio.i_channels )
1104     {
1105         current.audio.i_channels = p_dst->audio.i_channels;
1106         current.audio.i_physical_channels = p_dst->audio.i_physical_channels;
1107         current.audio.i_original_channels = p_dst->audio.i_original_channels;
1108
1109         if( ( !current.audio.i_physical_channels || !current.audio.i_original_channels ) &&
1110             current.audio.i_channels < 6 )
1111             current.audio.i_physical_channels =
1112             current.audio.i_original_channels = pi_channels_maps[current.audio.i_channels];
1113
1114         if( !filter_chain_AppendFilter( p_chain, NULL, NULL, NULL, &current ) )
1115         {
1116             msg_Err( p_stream, "Failed to find conversion filter for channel mixing" );
1117             return VLC_EGENERIC;
1118         }
1119         current = *filter_chain_GetFmtOut( p_chain );
1120     }
1121
1122     /* And last step, convert to the requested codec */
1123     if( current.i_codec != p_dst->i_codec )
1124     {
1125         current.i_codec = p_dst->i_codec;
1126         if( !filter_chain_AppendFilter( p_chain, NULL, NULL, NULL, &current ) )
1127         {
1128             msg_Err( p_stream, "Failed to find conversion filter to %4.4s",
1129                      (const char*)&p_dst->i_codec);
1130             return VLC_EGENERIC;
1131         }
1132         current = *filter_chain_GetFmtOut( p_chain );
1133     }
1134
1135     if( transcode_audio_filter_needed( p_dst, &current ) )
1136     {
1137         /* Weird case, a filter has side effects, doomed */
1138         msg_Err( p_stream, "Failed to create a valid audio filter chain" );
1139         return VLC_EGENERIC;
1140     }
1141
1142     msg_Dbg( p_stream, "Got complete audio filter chain" );
1143     return VLC_SUCCESS;
1144 }
1145
1146 static int transcode_audio_new( sout_stream_t *p_stream,
1147                                 sout_stream_id_t *id )
1148 {
1149     sout_stream_sys_t *p_sys = p_stream->p_sys;
1150     es_format_t fmt_last;
1151
1152     /*
1153      * Open decoder
1154      */
1155
1156     /* Initialization of decoder structures */
1157     id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1158     id->p_decoder->fmt_out.i_extra = 0;
1159     id->p_decoder->fmt_out.p_extra = 0;
1160     id->p_decoder->pf_decode_audio = NULL;
1161     id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
1162     id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
1163     /* id->p_decoder->p_cfg = p_sys->p_audio_cfg; */
1164
1165     id->p_decoder->p_module =
1166         module_need( id->p_decoder, "decoder", "$codec", false );
1167     if( !id->p_decoder->p_module )
1168     {
1169         msg_Err( p_stream, "cannot find audio decoder" );
1170         return VLC_EGENERIC;
1171     }
1172     id->p_decoder->fmt_out.audio.i_bitspersample =
1173         aout_BitsPerSample( id->p_decoder->fmt_out.i_codec );
1174     fmt_last = id->p_decoder->fmt_out;
1175     /* Fix AAC SBR changing number of channels and sampling rate */
1176     if( !(id->p_decoder->fmt_in.i_codec == VLC_CODEC_MP4A &&
1177         fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate &&
1178         fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels) )
1179         fmt_last.audio.i_rate = id->p_decoder->fmt_in.audio.i_rate;
1180
1181     /*
1182      * Open encoder
1183      */
1184
1185     /* Initialization of encoder format structures */
1186     es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1187                     id->p_decoder->fmt_out.i_codec );
1188     id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
1189
1190     id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
1191     id->p_encoder->fmt_in.audio.i_physical_channels =
1192         id->p_encoder->fmt_out.audio.i_physical_channels;
1193     id->p_encoder->fmt_in.audio.i_original_channels =
1194         id->p_encoder->fmt_out.audio.i_original_channels;
1195     id->p_encoder->fmt_in.audio.i_channels =
1196         id->p_encoder->fmt_out.audio.i_channels;
1197     id->p_encoder->fmt_in.audio.i_bitspersample =
1198         aout_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1199
1200     id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
1201     id->p_encoder->p_module =
1202         module_need( id->p_encoder, "encoder", p_sys->psz_aenc, true );
1203     if( !id->p_encoder->p_module )
1204     {
1205         msg_Err( p_stream, "cannot find audio encoder (module:%s fourcc:%4.4s)",
1206                  p_sys->psz_aenc ? p_sys->psz_aenc : "any",
1207                  (char *)&p_sys->i_acodec );
1208         module_unneed( id->p_decoder, id->p_decoder->p_module );
1209         id->p_decoder->p_module = NULL;
1210         return VLC_EGENERIC;
1211     }
1212     id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
1213     id->p_encoder->fmt_in.audio.i_bitspersample =
1214         aout_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1215
1216     /* Load user specified audio filters */
1217     if( p_sys->psz_af2 )
1218     {
1219         es_format_t fmt_fl32 = fmt_last;
1220         fmt_fl32.i_codec =
1221         fmt_fl32.audio.i_format = VLC_CODEC_FL32;
1222         if( transcode_audio_filter_chain_build( p_stream, id->p_uf_chain,
1223                                                 &fmt_fl32, &fmt_last ) )
1224         {
1225             transcode_audio_close( id );
1226             return VLC_EGENERIC;
1227         }
1228         fmt_last = fmt_fl32;
1229
1230         id->p_uf_chain = filter_chain_New( p_stream, "audio filter2", false,
1231                                            transcode_audio_filter_allocation_init, NULL, NULL );
1232         filter_chain_Reset( id->p_uf_chain, &fmt_last, &fmt_fl32 );
1233         if( filter_chain_AppendFromString( id->p_uf_chain, p_sys->psz_af2 ) > 0 )
1234             fmt_last = *filter_chain_GetFmtOut( id->p_uf_chain );
1235     }
1236
1237     /* Load conversion filters */
1238     id->p_f_chain = filter_chain_New( p_stream, "audio filter2", true,
1239                     transcode_audio_filter_allocation_init, NULL, NULL );
1240     filter_chain_Reset( id->p_f_chain, &fmt_last, &id->p_encoder->fmt_in );
1241
1242     if( transcode_audio_filter_chain_build( p_stream, id->p_f_chain,
1243                                             &id->p_encoder->fmt_in, &fmt_last ) )
1244     {
1245         transcode_audio_close( id );
1246         return VLC_EGENERIC;
1247     }
1248     fmt_last = id->p_encoder->fmt_in;
1249
1250     /* */
1251     id->p_encoder->fmt_out.i_codec =
1252         vlc_fourcc_GetCodec( AUDIO_ES, id->p_encoder->fmt_out.i_codec );
1253
1254     return VLC_SUCCESS;
1255 }
1256
1257 static void transcode_audio_close( sout_stream_id_t *id )
1258 {
1259     audio_timer_close( id->p_encoder );
1260
1261     /* Close decoder */
1262     if( id->p_decoder->p_module )
1263         module_unneed( id->p_decoder, id->p_decoder->p_module );
1264     id->p_decoder->p_module = NULL;
1265
1266     if( id->p_decoder->p_description )
1267         vlc_meta_Delete( id->p_decoder->p_description );
1268     id->p_decoder->p_description = NULL;
1269
1270     /* Close encoder */
1271     if( id->p_encoder->p_module )
1272         module_unneed( id->p_encoder, id->p_encoder->p_module );
1273     id->p_encoder->p_module = NULL;
1274
1275     /* Close filters */
1276     if( id->p_uf_chain )
1277         filter_chain_Delete( id->p_uf_chain );
1278     if( id->p_f_chain )
1279         filter_chain_Delete( id->p_f_chain );
1280 }
1281
1282 static int transcode_audio_process( sout_stream_t *p_stream,
1283                                     sout_stream_id_t *id,
1284                                     block_t *in, block_t **out )
1285 {
1286     sout_stream_sys_t *p_sys = p_stream->p_sys;
1287     aout_buffer_t *p_audio_buf;
1288     block_t *p_block, *p_audio_block;
1289     *out = NULL;
1290
1291     while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
1292                                                           &in )) )
1293     {
1294         sout_UpdateStatistic( p_stream->p_sout, SOUT_STATISTIC_DECODED_AUDIO, 1 );
1295         if( p_sys->b_master_sync )
1296         {
1297             mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1298             if ( p_audio_buf->i_pts - i_dts > MASTER_SYNC_MAX_DRIFT
1299                   || p_audio_buf->i_pts - i_dts < -MASTER_SYNC_MAX_DRIFT )
1300             {
1301                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1302                 date_Set( &id->interpolated_pts, p_audio_buf->i_pts );
1303                 i_dts = p_audio_buf->i_pts + 1;
1304             }
1305             p_sys->i_master_drift = p_audio_buf->i_pts - i_dts;
1306             date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1307             p_audio_buf->i_pts -= p_sys->i_master_drift;
1308         }
1309
1310         p_audio_block = p_audio_buf->p_sys;
1311         p_audio_block->i_buffer = p_audio_buf->i_buffer;
1312         p_audio_block->i_dts = p_audio_block->i_pts =
1313             p_audio_buf->i_pts;
1314         p_audio_block->i_length = p_audio_buf->i_length;
1315         p_audio_block->i_nb_samples = p_audio_buf->i_nb_samples;
1316
1317         /* Run filter chain */
1318         if( id->p_uf_chain )
1319         {
1320             p_audio_block = filter_chain_AudioFilter( id->p_uf_chain, p_audio_block );
1321             assert( p_audio_block );
1322         }
1323
1324         p_audio_block = filter_chain_AudioFilter( id->p_f_chain, p_audio_block );
1325         assert( p_audio_block );
1326
1327         p_audio_buf->p_buffer = p_audio_block->p_buffer;
1328         p_audio_buf->i_buffer = p_audio_block->i_buffer;
1329         p_audio_buf->i_nb_samples = p_audio_block->i_nb_samples;
1330         p_audio_buf->i_pts = p_audio_block->i_dts;
1331         p_audio_buf->i_length = p_audio_block->i_length;
1332
1333         audio_timer_start( id->p_encoder );
1334         p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1335         audio_timer_stop( id->p_encoder );
1336
1337         block_ChainAppend( out, p_block );
1338         block_Release( p_audio_block );
1339         free( p_audio_buf );
1340     }
1341
1342     return VLC_SUCCESS;
1343 }
1344
1345 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1346 {
1347     aout_buffer_t *p_buffer;
1348     block_t *p_block;
1349     int i_size;
1350
1351     if( p_dec->fmt_out.audio.i_bitspersample )
1352     {
1353         i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1354             p_dec->fmt_out.audio.i_channels;
1355     }
1356     else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1357              p_dec->fmt_out.audio.i_frame_length )
1358     {
1359         i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1360             p_dec->fmt_out.audio.i_frame_length;
1361     }
1362     else
1363     {
1364         i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1365     }
1366
1367     p_buffer = malloc( sizeof(aout_buffer_t) );
1368     if( !p_buffer ) return NULL;
1369     p_buffer->i_flags = 0;
1370     p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1371
1372     p_buffer->p_buffer = p_block->p_buffer;
1373     p_buffer->i_size = p_buffer->i_buffer = p_block->i_buffer;
1374     p_buffer->i_nb_samples = i_samples;
1375     p_block->i_nb_samples = i_samples;
1376
1377     return p_buffer;
1378 }
1379
1380 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1381 {
1382     VLC_UNUSED(p_dec);
1383     if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1384     free( p_buffer );
1385 }
1386
1387 /*
1388  * video
1389  */
1390
1391 static picture_t *transcode_video_filter_buffer_new( filter_t *p_filter )
1392 {
1393     p_filter->fmt_out.video.i_chroma = p_filter->fmt_out.i_codec;
1394     return picture_New( p_filter->fmt_out.video.i_chroma,
1395                         p_filter->fmt_out.video.i_width,
1396                         p_filter->fmt_out.video.i_height,
1397                         p_filter->fmt_out.video.i_aspect );
1398 }
1399 static void transcode_video_filter_buffer_del( filter_t *p_filter, picture_t *p_pic )
1400 {
1401     VLC_UNUSED(p_filter);
1402     picture_Release( p_pic );
1403 }
1404
1405 static int transcode_video_filter_allocation_init( filter_t *p_filter,
1406                                                    void *p_data )
1407 {
1408     VLC_UNUSED(p_data);
1409     p_filter->pf_vout_buffer_new = transcode_video_filter_buffer_new;
1410     p_filter->pf_vout_buffer_del = transcode_video_filter_buffer_del;
1411     return VLC_SUCCESS;
1412 }
1413
1414 static void transcode_video_filter_allocation_clear( filter_t *p_filter )
1415 {
1416     VLC_UNUSED(p_filter);
1417 }
1418
1419 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1420 {
1421     sout_stream_sys_t *p_sys = p_stream->p_sys;
1422
1423     /* Open decoder
1424      * Initialization of decoder structures
1425      */
1426     id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1427     id->p_decoder->fmt_out.i_extra = 0;
1428     id->p_decoder->fmt_out.p_extra = 0;
1429     id->p_decoder->pf_decode_video = NULL;
1430     id->p_decoder->pf_get_cc = NULL;
1431     id->p_decoder->pf_get_cc = 0;
1432     id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1433     id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1434     id->p_decoder->pf_picture_link    = video_link_picture_decoder;
1435     id->p_decoder->pf_picture_unlink  = video_unlink_picture_decoder;
1436     id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1437     if( !id->p_decoder->p_owner )
1438         return VLC_EGENERIC;
1439
1440     id->p_decoder->p_owner->p_sys = p_sys;
1441     /* id->p_decoder->p_cfg = p_sys->p_video_cfg; */
1442
1443     id->p_decoder->p_module =
1444         module_need( id->p_decoder, "decoder", "$codec", false );
1445
1446     if( !id->p_decoder->p_module )
1447     {
1448         msg_Err( p_stream, "cannot find video decoder" );
1449         free( id->p_decoder->p_owner );
1450         return VLC_EGENERIC;
1451     }
1452
1453     /*
1454      * Open encoder.
1455      * Because some info about the decoded input will only be available
1456      * once the first frame is decoded, we actually only test the availability
1457      * of the encoder here.
1458      */
1459
1460     /* Initialization of encoder format structures */
1461     es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1462                     id->p_decoder->fmt_out.i_codec );
1463     id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1464
1465     /* The dimensions will be set properly later on.
1466      * Just put sensible values so we can test an encoder is available. */
1467     id->p_encoder->fmt_in.video.i_width =
1468         id->p_encoder->fmt_out.video.i_width
1469           ? id->p_encoder->fmt_out.video.i_width
1470           : id->p_decoder->fmt_in.video.i_width
1471             ? id->p_decoder->fmt_in.video.i_width : 16;
1472     id->p_encoder->fmt_in.video.i_height =
1473         id->p_encoder->fmt_out.video.i_height
1474           ? id->p_encoder->fmt_out.video.i_height
1475           : id->p_decoder->fmt_in.video.i_height
1476             ? id->p_decoder->fmt_in.video.i_height : 16;
1477     id->p_encoder->fmt_in.video.i_frame_rate = ENC_FRAMERATE;
1478     id->p_encoder->fmt_in.video.i_frame_rate_base = ENC_FRAMERATE_BASE;
1479
1480     id->p_encoder->i_threads = p_sys->i_threads;
1481     id->p_encoder->p_cfg = p_sys->p_video_cfg;
1482
1483     id->p_encoder->p_module =
1484         module_need( id->p_encoder, "encoder", p_sys->psz_venc, true );
1485     if( !id->p_encoder->p_module )
1486     {
1487         msg_Err( p_stream, "cannot find video encoder (module:%s fourcc:%4.4s)",
1488                  p_sys->psz_venc ? p_sys->psz_venc : "any",
1489                  (char *)&p_sys->i_vcodec );
1490         module_unneed( id->p_decoder, id->p_decoder->p_module );
1491         id->p_decoder->p_module = 0;
1492         free( id->p_decoder->p_owner );
1493         return VLC_EGENERIC;
1494     }
1495
1496     /* Close the encoder.
1497      * We'll open it only when we have the first frame. */
1498     module_unneed( id->p_encoder, id->p_encoder->p_module );
1499     if( id->p_encoder->fmt_out.p_extra )
1500     {
1501         free( id->p_encoder->fmt_out.p_extra );
1502         id->p_encoder->fmt_out.p_extra = NULL;
1503         id->p_encoder->fmt_out.i_extra = 0;
1504     }
1505     id->p_encoder->p_module = NULL;
1506
1507     if( p_sys->i_threads >= 1 )
1508     {
1509         int i_priority = p_sys->b_high_priority ? VLC_THREAD_PRIORITY_OUTPUT :
1510                            VLC_THREAD_PRIORITY_VIDEO;
1511         p_sys->id_video = id;
1512         vlc_mutex_init( &p_sys->lock_out );
1513         vlc_cond_init( &p_sys->cond );
1514         memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1515         p_sys->i_first_pic = 0;
1516         p_sys->i_last_pic = 0;
1517         p_sys->p_buffers = NULL;
1518         p_sys->b_die = p_sys->b_error = 0;
1519         if( vlc_thread_create( p_sys, "encoder", EncoderThread, i_priority ) )
1520         {
1521             msg_Err( p_stream, "cannot spawn encoder thread" );
1522             module_unneed( id->p_decoder, id->p_decoder->p_module );
1523             id->p_decoder->p_module = 0;
1524             free( id->p_decoder->p_owner );
1525             return VLC_EGENERIC;
1526         }
1527     }
1528
1529     return VLC_SUCCESS;
1530 }
1531
1532 static void transcode_video_encoder_init( sout_stream_t *p_stream,
1533                                           sout_stream_id_t *id )
1534 {
1535     sout_stream_sys_t *p_sys = p_stream->p_sys;
1536
1537     /* Calculate scaling
1538      * width/height of source */
1539     int i_src_width = id->p_decoder->fmt_out.video.i_width;
1540     int i_src_height = id->p_decoder->fmt_out.video.i_height;
1541
1542     /* with/height scaling */
1543     float f_scale_width = 1;
1544     float f_scale_height = 1;
1545
1546     /* width/height of output stream */
1547     int i_dst_width;
1548     int i_dst_height;
1549
1550     /* aspect ratio */
1551     float f_aspect = (float)id->p_decoder->fmt_out.video.i_aspect /
1552                             VOUT_ASPECT_FACTOR;
1553
1554     msg_Dbg( p_stream, "decoder aspect is %i:%i",
1555                  id->p_decoder->fmt_out.video.i_aspect, VOUT_ASPECT_FACTOR );
1556
1557     /* Change f_aspect from source frame to source pixel */
1558     f_aspect = f_aspect * i_src_height / i_src_width;
1559     msg_Dbg( p_stream, "source pixel aspect is %f:1", f_aspect );
1560
1561     /* Calculate scaling factor for specified parameters */
1562     if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1563         id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1564     {
1565         /* Global scaling. Make sure width will remain a factor of 16 */
1566         float f_real_scale;
1567         int  i_new_height;
1568         int i_new_width = i_src_width * p_sys->f_scale;
1569
1570         if( i_new_width % 16 <= 7 && i_new_width >= 16 )
1571             i_new_width -= i_new_width % 16;
1572         else
1573             i_new_width += 16 - i_new_width % 16;
1574
1575         f_real_scale = (float)( i_new_width ) / (float) i_src_width;
1576
1577         i_new_height = __MAX( 16, i_src_height * (float)f_real_scale );
1578
1579         f_scale_width = f_real_scale;
1580         f_scale_height = (float) i_new_height / (float) i_src_height;
1581     }
1582     else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1583              id->p_encoder->fmt_out.video.i_height <= 0 )
1584     {
1585         /* Only width specified */
1586         f_scale_width = (float)id->p_encoder->fmt_out.video.i_width/i_src_width;
1587         f_scale_height = f_scale_width;
1588     }
1589     else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1590              id->p_encoder->fmt_out.video.i_height > 0 )
1591     {
1592          /* Only height specified */
1593          f_scale_height = (float)id->p_encoder->fmt_out.video.i_height/i_src_height;
1594          f_scale_width = f_scale_height;
1595      }
1596      else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1597               id->p_encoder->fmt_out.video.i_height > 0 )
1598      {
1599          /* Width and height specified */
1600          f_scale_width = (float)id->p_encoder->fmt_out.video.i_width/i_src_width;
1601          f_scale_height = (float)id->p_encoder->fmt_out.video.i_height/i_src_height;
1602      }
1603
1604      /* check maxwidth and maxheight
1605       */
1606      if( p_sys->i_maxwidth && f_scale_width > (float)p_sys->i_maxwidth /
1607                                                      i_src_width )
1608      {
1609          f_scale_width = (float)p_sys->i_maxwidth / i_src_width;
1610      }
1611
1612      if( p_sys->i_maxheight && f_scale_height > (float)p_sys->i_maxheight /
1613                                                        i_src_height )
1614      {
1615          f_scale_height = (float)p_sys->i_maxheight / i_src_height;
1616      }
1617
1618
1619      /* Change aspect ratio from source pixel to scaled pixel */
1620      f_aspect = f_aspect * f_scale_height / f_scale_width;
1621      msg_Dbg( p_stream, "scaled pixel aspect is %f:1", f_aspect );
1622
1623      /* f_scale_width and f_scale_height are now final */
1624      /* Calculate width, height from scaling
1625       * Make sure its multiple of 2
1626       */
1627      i_dst_width =  2 * (int)(f_scale_width*i_src_width/2+0.5);
1628      i_dst_height = 2 * (int)(f_scale_height*i_src_height/2+0.5);
1629
1630      /* Change aspect ratio from scaled pixel to output frame */
1631      f_aspect = f_aspect * i_dst_width / i_dst_height;
1632
1633      /* Store calculated values */
1634      id->p_encoder->fmt_out.video.i_width =
1635      id->p_encoder->fmt_out.video.i_visible_width = i_dst_width;
1636      id->p_encoder->fmt_out.video.i_height =
1637      id->p_encoder->fmt_out.video.i_visible_height = i_dst_height;
1638
1639      id->p_encoder->fmt_in.video.i_width =
1640      id->p_encoder->fmt_in.video.i_visible_width = i_dst_width;
1641      id->p_encoder->fmt_in.video.i_height =
1642      id->p_encoder->fmt_in.video.i_visible_height = i_dst_height;
1643
1644      msg_Dbg( p_stream, "source %ix%i, destination %ix%i",
1645          i_src_width, i_src_height,
1646          i_dst_width, i_dst_height
1647      );
1648
1649     /* Handle frame rate conversion */
1650     if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1651         !id->p_encoder->fmt_out.video.i_frame_rate_base )
1652     {
1653         if( id->p_decoder->fmt_out.video.i_frame_rate &&
1654             id->p_decoder->fmt_out.video.i_frame_rate_base )
1655         {
1656             id->p_encoder->fmt_out.video.i_frame_rate =
1657                 id->p_decoder->fmt_out.video.i_frame_rate;
1658             id->p_encoder->fmt_out.video.i_frame_rate_base =
1659                 id->p_decoder->fmt_out.video.i_frame_rate_base;
1660         }
1661         else
1662         {
1663             /* Pick a sensible default value */
1664             id->p_encoder->fmt_out.video.i_frame_rate = ENC_FRAMERATE;
1665             id->p_encoder->fmt_out.video.i_frame_rate_base = ENC_FRAMERATE_BASE;
1666         }
1667     }
1668
1669     id->p_encoder->fmt_in.video.i_frame_rate =
1670         id->p_encoder->fmt_out.video.i_frame_rate;
1671     id->p_encoder->fmt_in.video.i_frame_rate_base =
1672         id->p_encoder->fmt_out.video.i_frame_rate_base;
1673
1674     date_Init( &id->interpolated_pts,
1675                id->p_encoder->fmt_out.video.i_frame_rate,
1676                id->p_encoder->fmt_out.video.i_frame_rate_base );
1677
1678     /* Check whether a particular aspect ratio was requested */
1679     if( !id->p_encoder->fmt_out.video.i_aspect )
1680     {
1681         id->p_encoder->fmt_out.video.i_aspect =
1682                 (int)( f_aspect * VOUT_ASPECT_FACTOR + 0.5 );
1683     }
1684     id->p_encoder->fmt_in.video.i_aspect =
1685         id->p_encoder->fmt_out.video.i_aspect;
1686
1687     msg_Dbg( p_stream, "encoder aspect is %i:%i",
1688              id->p_encoder->fmt_out.video.i_aspect, VOUT_ASPECT_FACTOR );
1689
1690     id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1691 }
1692
1693 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1694                                          sout_stream_id_t *id )
1695 {
1696     sout_stream_sys_t *p_sys = p_stream->p_sys;
1697
1698
1699     msg_Dbg( p_stream, "destination (after video filters) %ix%i",
1700              id->p_encoder->fmt_in.video.i_width,
1701              id->p_encoder->fmt_in.video.i_height );
1702
1703     id->p_encoder->p_module =
1704         module_need( id->p_encoder, "encoder", p_sys->psz_venc, true );
1705     if( !id->p_encoder->p_module )
1706     {
1707         msg_Err( p_stream, "cannot find video encoder (module:%s fourcc:%4.4s)",
1708                  p_sys->psz_venc ? p_sys->psz_venc : "any",
1709                  (char *)&p_sys->i_vcodec );
1710         return VLC_EGENERIC;
1711     }
1712
1713     id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1714
1715     /*  */
1716     id->p_encoder->fmt_out.i_codec =
1717         vlc_fourcc_GetCodec( VIDEO_ES, id->p_encoder->fmt_out.i_codec );
1718
1719     id->id = sout_StreamIdAdd( p_stream->p_sys->p_out,
1720                                &id->p_encoder->fmt_out );
1721     if( !id->id )
1722     {
1723         msg_Err( p_stream, "cannot add this stream" );
1724         return VLC_EGENERIC;
1725     }
1726
1727     return VLC_SUCCESS;
1728 }
1729
1730 static void transcode_video_close( sout_stream_t *p_stream,
1731                                    sout_stream_id_t *id )
1732 {
1733     if( p_stream->p_sys->i_threads >= 1 )
1734     {
1735         vlc_mutex_lock( &p_stream->p_sys->lock_out );
1736         vlc_object_kill( p_stream->p_sys );
1737         vlc_cond_signal( &p_stream->p_sys->cond );
1738         vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1739         vlc_thread_join( p_stream->p_sys );
1740         vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1741         vlc_cond_destroy( &p_stream->p_sys->cond );
1742     }
1743
1744     video_timer_close( id->p_encoder );
1745
1746     /* Close decoder */
1747     if( id->p_decoder->p_module )
1748         module_unneed( id->p_decoder, id->p_decoder->p_module );
1749     if( id->p_decoder->p_description )
1750         vlc_meta_Delete( id->p_decoder->p_description );
1751
1752     free( id->p_decoder->p_owner );
1753
1754     /* Close encoder */
1755     if( id->p_encoder->p_module )
1756         module_unneed( id->p_encoder, id->p_encoder->p_module );
1757
1758     /* Close filters */
1759     if( id->p_f_chain )
1760         filter_chain_Delete( id->p_f_chain );
1761     if( id->p_uf_chain )
1762         filter_chain_Delete( id->p_uf_chain );
1763 }
1764
1765 static int transcode_video_process( sout_stream_t *p_stream,
1766                                     sout_stream_id_t *id,
1767                                     block_t *in, block_t **out )
1768 {
1769     sout_stream_sys_t *p_sys = p_stream->p_sys;
1770     int i_duplicate = 1;
1771     picture_t *p_pic, *p_pic2 = NULL;
1772     *out = NULL;
1773
1774     while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1775     {
1776         subpicture_t *p_subpic = NULL;
1777
1778         sout_UpdateStatistic( p_stream->p_sout, SOUT_STATISTIC_DECODED_VIDEO, 1 );
1779
1780         if( p_stream->p_sout->i_out_pace_nocontrol && p_sys->b_hurry_up )
1781         {
1782             mtime_t current_date = mdate();
1783             if( current_date + 50000 > p_pic->date )
1784             {
1785                 msg_Dbg( p_stream, "late picture skipped (%"PRId64")",
1786                          current_date + 50000 - p_pic->date );
1787                 picture_Release( p_pic );
1788                 continue;
1789             }
1790         }
1791
1792         if( p_sys->b_master_sync )
1793         {
1794             mtime_t i_video_drift;
1795             mtime_t i_master_drift = p_sys->i_master_drift;
1796             mtime_t i_pts;
1797
1798             i_pts = date_Get( &id->interpolated_pts ) + 1;
1799             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
1800                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
1801             {
1802                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1803                 date_Set( &id->interpolated_pts, p_pic->date );
1804                 i_pts = p_pic->date + 1;
1805             }
1806             i_video_drift = p_pic->date - i_pts;
1807             i_duplicate = 1;
1808
1809             /* Set the pts of the frame being encoded */
1810             p_pic->date = i_pts;
1811
1812             if( i_video_drift < (i_master_drift - 50000) )
1813             {
1814 #if 0
1815                 msg_Dbg( p_stream, "dropping frame (%i)",
1816                          (int)(i_video_drift - i_master_drift) );
1817 #endif
1818                 picture_Release( p_pic );
1819                 continue;
1820             }
1821             else if( i_video_drift > (i_master_drift + 50000) )
1822             {
1823 #if 0
1824                 msg_Dbg( p_stream, "adding frame (%i)",
1825                          (int)(i_video_drift - i_master_drift) );
1826 #endif
1827                 i_duplicate = 2;
1828             }
1829         }
1830
1831         if( !id->p_encoder->p_module )
1832         {
1833             transcode_video_encoder_init( p_stream, id );
1834
1835             id->p_f_chain = filter_chain_New( p_stream, "video filter2",
1836                                               false,
1837                                transcode_video_filter_allocation_init,
1838                                transcode_video_filter_allocation_clear,
1839                                p_stream->p_sys );
1840
1841             /* Deinterlace */
1842             if( p_stream->p_sys->b_deinterlace )
1843             {
1844                 filter_chain_AppendFilter( id->p_f_chain,
1845                                            p_sys->psz_deinterlace,
1846                                            p_sys->p_deinterlace_cfg,
1847                                            &id->p_decoder->fmt_out,
1848                                            &id->p_decoder->fmt_out );
1849             }
1850
1851             /* Take care of the scaling and chroma conversions */
1852             if( ( id->p_decoder->fmt_out.video.i_chroma !=
1853                   id->p_encoder->fmt_in.video.i_chroma ) ||
1854                 ( id->p_decoder->fmt_out.video.i_width !=
1855                   id->p_encoder->fmt_in.video.i_width ) ||
1856                 ( id->p_decoder->fmt_out.video.i_height !=
1857                   id->p_encoder->fmt_in.video.i_height ) )
1858             {
1859                 filter_chain_AppendFilter( id->p_f_chain,
1860                                            NULL, NULL,
1861                                            &id->p_decoder->fmt_out,
1862                                            &id->p_encoder->fmt_in );
1863             }
1864
1865             if( p_sys->psz_vf2 )
1866             {
1867                 const es_format_t *p_fmt_out;
1868                 id->p_uf_chain = filter_chain_New( p_stream, "video filter2",
1869                                                    true,
1870                                    transcode_video_filter_allocation_init,
1871                                    transcode_video_filter_allocation_clear,
1872                                    p_stream->p_sys );
1873                 filter_chain_Reset( id->p_uf_chain, &id->p_encoder->fmt_in,
1874                                     &id->p_encoder->fmt_in );
1875                 filter_chain_AppendFromString( id->p_uf_chain, p_sys->psz_vf2 );
1876                 p_fmt_out = filter_chain_GetFmtOut( id->p_uf_chain );
1877                 es_format_Copy( &id->p_encoder->fmt_in, p_fmt_out );
1878                 id->p_encoder->fmt_out.video.i_width =
1879                     id->p_encoder->fmt_in.video.i_width;
1880                 id->p_encoder->fmt_out.video.i_height =
1881                     id->p_encoder->fmt_in.video.i_height;
1882                 id->p_encoder->fmt_out.video.i_aspect =
1883                     id->p_encoder->fmt_in.video.i_aspect;
1884             }
1885
1886             if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1887             {
1888                 picture_Release( p_pic );
1889                 transcode_video_close( p_stream, id );
1890                 id->b_transcode = false;
1891                 return VLC_EGENERIC;
1892             }
1893         }
1894
1895         /* Run filter chain */
1896         if( id->p_f_chain )
1897             p_pic = filter_chain_VideoFilter( id->p_f_chain, p_pic );
1898
1899         /*
1900          * Encoding
1901          */
1902
1903         /* Check if we have a subpicture to overlay */
1904         if( p_sys->p_spu )
1905         {
1906             p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date, false );
1907             /* TODO: get another pic */
1908         }
1909
1910         /* Overlay subpicture */
1911         if( p_subpic )
1912         {
1913             video_format_t fmt;
1914
1915             if( picture_IsReferenced( p_pic ) && !filter_chain_GetLength( id->p_f_chain ) )
1916             {
1917                 /* We can't modify the picture, we need to duplicate it */
1918                 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1919                 if( p_tmp )
1920                 {
1921                     picture_Copy( p_tmp, p_pic );
1922                     picture_Release( p_pic );
1923                     p_pic = p_tmp;
1924                 }
1925             }
1926
1927             if( filter_chain_GetLength( id->p_f_chain ) > 0 )
1928                 fmt = filter_chain_GetFmtOut( id->p_f_chain )->video;
1929             else
1930                 fmt = id->p_decoder->fmt_out.video;
1931
1932             /* FIXME (shouldn't have to be done here) */
1933             fmt.i_sar_num = fmt.i_aspect * fmt.i_height / fmt.i_width;
1934             fmt.i_sar_den = VOUT_ASPECT_FACTOR;
1935
1936             /* FIXME the mdate() seems highly suspicious */
1937             spu_RenderSubpictures( p_sys->p_spu, p_pic, &fmt,
1938                                    p_subpic, &id->p_decoder->fmt_out.video, mdate() );
1939         }
1940
1941         /* Run user specified filter chain */
1942         if( id->p_uf_chain )
1943             p_pic = filter_chain_VideoFilter( id->p_uf_chain, p_pic );
1944
1945         if( p_sys->i_threads == 0 )
1946         {
1947             block_t *p_block;
1948
1949             video_timer_start( id->p_encoder );
1950             p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1951             video_timer_stop( id->p_encoder );
1952
1953             block_ChainAppend( out, p_block );
1954         }
1955
1956         if( p_sys->b_master_sync )
1957         {
1958             mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1959             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
1960                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
1961             {
1962                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1963                 date_Set( &id->interpolated_pts, p_pic->date );
1964                 i_pts = p_pic->date + 1;
1965             }
1966             date_Increment( &id->interpolated_pts, 1 );
1967         }
1968
1969         if( p_sys->b_master_sync && i_duplicate > 1 )
1970         {
1971             mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1972             if( (p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT)
1973                  || ((p_pic->date - i_pts) < -MASTER_SYNC_MAX_DRIFT) )
1974             {
1975                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1976                 date_Set( &id->interpolated_pts, p_pic->date );
1977                 i_pts = p_pic->date + 1;
1978             }
1979             date_Increment( &id->interpolated_pts, 1 );
1980
1981             if( p_sys->i_threads >= 1 )
1982             {
1983                 /* We can't modify the picture, we need to duplicate it */
1984                 p_pic2 = video_new_buffer_decoder( id->p_decoder );
1985                 if( p_pic2 != NULL )
1986                 {
1987                     picture_Copy( p_pic2, p_pic );
1988                     p_pic2->date = i_pts;
1989                 }
1990             }
1991             else
1992             {
1993                 block_t *p_block;
1994                 p_pic->date = i_pts;
1995                 video_timer_start( id->p_encoder );
1996                 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1997                 video_timer_stop( id->p_encoder );
1998                 block_ChainAppend( out, p_block );
1999             }
2000         }
2001
2002         if( p_sys->i_threads == 0 )
2003         {
2004             picture_Release( p_pic );
2005         }
2006         else
2007         {
2008             vlc_mutex_lock( &p_sys->lock_out );
2009             p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
2010             p_sys->i_last_pic %= PICTURE_RING_SIZE;
2011             *out = p_sys->p_buffers;
2012             p_sys->p_buffers = NULL;
2013             if( p_pic2 != NULL )
2014             {
2015                 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic2;
2016                 p_sys->i_last_pic %= PICTURE_RING_SIZE;
2017             }
2018             vlc_cond_signal( &p_sys->cond );
2019             vlc_mutex_unlock( &p_sys->lock_out );
2020         }
2021     }
2022
2023     return VLC_SUCCESS;
2024 }
2025
2026 static void* EncoderThread( vlc_object_t* p_this )
2027 {
2028     sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_this;
2029     sout_stream_id_t *id = p_sys->id_video;
2030     picture_t *p_pic;
2031     int canc = vlc_savecancel ();
2032
2033     while( vlc_object_alive (p_sys) && !p_sys->b_error )
2034     {
2035         block_t *p_block;
2036
2037         vlc_mutex_lock( &p_sys->lock_out );
2038         while( p_sys->i_last_pic == p_sys->i_first_pic )
2039         {
2040             vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
2041             if( !vlc_object_alive (p_sys) || p_sys->b_error ) break;
2042         }
2043         if( !vlc_object_alive (p_sys) || p_sys->b_error )
2044         {
2045             vlc_mutex_unlock( &p_sys->lock_out );
2046             break;
2047         }
2048
2049         p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
2050         p_sys->i_first_pic %= PICTURE_RING_SIZE;
2051         vlc_mutex_unlock( &p_sys->lock_out );
2052
2053         video_timer_start( id->p_encoder );
2054         p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
2055         video_timer_stop( id->p_encoder );
2056
2057         vlc_mutex_lock( &p_sys->lock_out );
2058         block_ChainAppend( &p_sys->p_buffers, p_block );
2059
2060         vlc_mutex_unlock( &p_sys->lock_out );
2061         picture_Release( p_pic );
2062     }
2063
2064     while( p_sys->i_last_pic != p_sys->i_first_pic )
2065     {
2066         p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
2067         p_sys->i_first_pic %= PICTURE_RING_SIZE;
2068         picture_Release( p_pic );
2069     }
2070     block_ChainRelease( p_sys->p_buffers );
2071
2072     vlc_restorecancel (canc);
2073     return NULL;
2074 }
2075
2076 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
2077 {
2078     sout_stream_sys_t *p_ssys = p_dec->p_owner->p_sys;
2079     if( p_ssys->i_threads >= 1 )
2080     {
2081         int i_first_pic = p_ssys->i_first_pic;
2082
2083         if( p_ssys->i_first_pic != p_ssys->i_last_pic )
2084         {
2085             /* Encoder still has stuff to encode, wait to clear-up the list */
2086             while( p_ssys->i_first_pic == i_first_pic )
2087             {
2088 #warning THERE IS A DEFINITELY BUG! LOCKING IS INSUFFICIENT!
2089                 msleep( 10000 );
2090                 barrier ();
2091             }
2092         }
2093     }
2094
2095     p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2096     return picture_New( p_dec->fmt_out.video.i_chroma,
2097                         p_dec->fmt_out.video.i_width,
2098                         p_dec->fmt_out.video.i_height,
2099                         p_dec->fmt_out.video.i_aspect );
2100 }
2101
2102 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
2103 {
2104     VLC_UNUSED(p_decoder);
2105     picture_Release( p_pic );
2106 }
2107
2108 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
2109 {
2110     VLC_UNUSED(p_dec);
2111     picture_Hold( p_pic );
2112 }
2113
2114 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
2115 {
2116     VLC_UNUSED(p_dec);
2117     picture_Release( p_pic );
2118 }
2119
2120 /*
2121  * SPU
2122  */
2123 static subpicture_t *spu_new_buffer( decoder_t * );
2124 static void spu_del_buffer( decoder_t *, subpicture_t * );
2125
2126 static int transcode_spu_new( sout_stream_t *p_stream, sout_stream_id_t *id )
2127 {
2128     sout_stream_sys_t *p_sys = p_stream->p_sys;
2129
2130     /*
2131      * Open decoder
2132      */
2133
2134     /* Initialization of decoder structures */
2135     id->p_decoder->pf_decode_sub = NULL;
2136     id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
2137     id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
2138     id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
2139     /* id->p_decoder->p_cfg = p_sys->p_spu_cfg; */
2140
2141     id->p_decoder->p_module =
2142         module_need( id->p_decoder, "decoder", "$codec", false );
2143
2144     if( !id->p_decoder->p_module )
2145     {
2146         msg_Err( p_stream, "cannot find spu decoder" );
2147         return VLC_EGENERIC;
2148     }
2149
2150     if( !p_sys->b_soverlay )
2151     {
2152         /* Open encoder */
2153         /* Initialization of encoder format structures */
2154         es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
2155                         id->p_decoder->fmt_in.i_codec );
2156
2157         id->p_encoder->p_cfg = p_sys->p_spu_cfg;
2158
2159         id->p_encoder->p_module =
2160             module_need( id->p_encoder, "encoder", p_sys->psz_senc, true );
2161
2162         if( !id->p_encoder->p_module )
2163         {
2164             module_unneed( id->p_decoder, id->p_decoder->p_module );
2165             msg_Err( p_stream, "cannot find spu encoder (%s)", p_sys->psz_senc );
2166             return VLC_EGENERIC;
2167         }
2168     }
2169
2170     if( !p_sys->p_spu )
2171     {
2172         p_sys->p_spu = spu_Create( p_stream );
2173         spu_Init( p_sys->p_spu );
2174     }
2175
2176     return VLC_SUCCESS;
2177 }
2178
2179 static void transcode_spu_close( sout_stream_id_t *id)
2180 {
2181     /* Close decoder */
2182     if( id->p_decoder->p_module )
2183         module_unneed( id->p_decoder, id->p_decoder->p_module );
2184     if( id->p_decoder->p_description )
2185         vlc_meta_Delete( id->p_decoder->p_description );
2186
2187     /* Close encoder */
2188     if( id->p_encoder->p_module )
2189         module_unneed( id->p_encoder, id->p_encoder->p_module );
2190 }
2191
2192 static int transcode_spu_process( sout_stream_t *p_stream,
2193                                   sout_stream_id_t *id,
2194                                   block_t *in, block_t **out )
2195 {
2196     sout_stream_sys_t *p_sys = p_stream->p_sys;
2197     subpicture_t *p_subpic;
2198     *out = NULL;
2199
2200     p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
2201     if( !p_subpic )
2202         return VLC_EGENERIC;
2203
2204     sout_UpdateStatistic( p_stream->p_sout, SOUT_STATISTIC_DECODED_SUBTITLE, 1 );
2205
2206     if( p_sys->b_master_sync && p_sys->i_master_drift )
2207     {
2208         p_subpic->i_start -= p_sys->i_master_drift;
2209         if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2210     }
2211
2212     if( p_sys->b_soverlay )
2213     {
2214         spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
2215     }
2216     else
2217     {
2218         block_t *p_block;
2219
2220         p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
2221         spu_del_buffer( id->p_decoder, p_subpic );
2222         if( p_block )
2223         {
2224             block_ChainAppend( out, p_block );
2225             return VLC_SUCCESS;
2226         }
2227     }
2228
2229     return VLC_EGENERIC;
2230 }
2231
2232 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2233 {
2234     VLC_UNUSED( p_dec );
2235     return subpicture_New();
2236 }
2237
2238 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2239 {
2240     VLC_UNUSED( p_dec );
2241     subpicture_Delete( p_subpic );
2242 }
2243
2244 /*
2245  * OSD menu
2246  */
2247 static int transcode_osd_new( sout_stream_t *p_stream, sout_stream_id_t *id )
2248 {
2249     sout_stream_sys_t *p_sys = p_stream->p_sys;
2250
2251     id->p_decoder->fmt_in.i_cat = SPU_ES;
2252     id->p_encoder->fmt_out.psz_language = strdup( "osd" );
2253
2254     if( p_sys->i_osdcodec != 0 || p_sys->psz_osdenc )
2255     {
2256         msg_Dbg( p_stream, "creating osdmenu transcoding from fcc=`%4.4s' "
2257                  "to fcc=`%4.4s'", (char*)&id->p_encoder->fmt_out.i_codec,
2258                  (char*)&p_sys->i_osdcodec );
2259
2260         /* Complete destination format */
2261         id->p_encoder->fmt_out.i_codec = p_sys->i_osdcodec;
2262
2263         /* Open encoder */
2264         es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
2265                         VLC_CODEC_YUVA );
2266         id->p_encoder->fmt_in.psz_language = strdup( "osd" );
2267
2268         id->p_encoder->p_cfg = p_sys->p_osd_cfg;
2269
2270         id->p_encoder->p_module =
2271             module_need( id->p_encoder, "encoder", p_sys->psz_osdenc, true );
2272
2273         if( !id->p_encoder->p_module )
2274         {
2275             msg_Err( p_stream, "cannot find spu encoder (%s)", p_sys->psz_osdenc );
2276             goto error;
2277         }
2278
2279         /* open output stream */
2280         id->id = sout_StreamIdAdd( p_sys->p_out, &id->p_encoder->fmt_out );
2281         id->b_transcode = true;
2282
2283         if( !id->id ) goto error;
2284     }
2285     else
2286     {
2287         msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
2288                  (char*)&id->p_decoder->fmt_out.i_codec );
2289         id->id = sout_StreamIdAdd( p_sys->p_out, &id->p_decoder->fmt_out );
2290         id->b_transcode = false;
2291
2292         if( !id->id ) goto error;
2293     }
2294
2295     if( !p_sys->p_spu )
2296     {
2297         p_sys->p_spu = spu_Create( p_stream );
2298         spu_Init( p_sys->p_spu );
2299     }
2300
2301     return VLC_SUCCESS;
2302
2303  error:
2304     msg_Err( p_stream, "starting osd encoding thread failed" );
2305     if( id->p_encoder->p_module )
2306             module_unneed( id->p_encoder, id->p_encoder->p_module );
2307     p_sys->b_osd = false;
2308     return VLC_EGENERIC;
2309 }
2310
2311 static void transcode_osd_close( sout_stream_t *p_stream, sout_stream_id_t *id)
2312 {
2313     sout_stream_sys_t *p_sys = p_stream->p_sys;
2314
2315     /* Close encoder */
2316     if( id )
2317     {
2318         if( id->p_encoder->p_module )
2319             module_unneed( id->p_encoder, id->p_encoder->p_module );
2320     }
2321     p_sys->b_osd = false;
2322 }
2323
2324 static int transcode_osd_process( sout_stream_t *p_stream,
2325                                   sout_stream_id_t *id,
2326                                   block_t *in, block_t **out )
2327 {
2328     sout_stream_sys_t *p_sys = p_stream->p_sys;
2329     subpicture_t *p_subpic = NULL;
2330
2331     /* Check if we have a subpicture to send */
2332     if( p_sys->p_spu && in->i_dts > 0)
2333     {
2334         p_subpic = spu_SortSubpictures( p_sys->p_spu, in->i_dts, false );
2335     }
2336     else
2337     {
2338         msg_Warn( p_stream, "spu channel not initialized, doing it now" );
2339         if( !p_sys->p_spu )
2340         {
2341             p_sys->p_spu = spu_Create( p_stream );
2342             spu_Init( p_sys->p_spu );
2343         }
2344     }
2345
2346     if( p_subpic )
2347     {
2348         block_t *p_block = NULL;
2349
2350         if( p_sys->b_master_sync && p_sys->i_master_drift )
2351         {
2352             p_subpic->i_start -= p_sys->i_master_drift;
2353             if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2354         }
2355
2356         p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
2357         subpicture_Delete( p_subpic );
2358         if( p_block )
2359         {
2360             p_block->i_dts = p_block->i_pts = in->i_dts;
2361             block_ChainAppend( out, p_block );
2362             return VLC_SUCCESS;
2363         }
2364     }
2365     return VLC_EGENERIC;
2366 }