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

   1 /*****************************************************************************
   2  * transcode.c: transcoding stream output module
   3  *****************************************************************************
   4  * Copyright (C) 2003-2004 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  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <math.h>
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc/input.h>
  35 #include <vlc/sout.h>
  36 #include <vlc/vout.h>
  37 #include <vlc/decoder.h>
  38 #include "vlc_filter.h"
  39 #include "vlc_osd.h"
  40
  41 #define MASTER_SYNC_MAX_DRIFT 100000
  42
  43 /*****************************************************************************
  44  * Module descriptor
  45  *****************************************************************************/
  46 #define VENC_TEXT N_("Video encoder")
  47 #define VENC_LONGTEXT N_( \
  48     "Allows you to specify the video encoder to use and its associated " \
  49     "options." )
  50 #define VCODEC_TEXT N_("Destination video codec")
  51 #define VCODEC_LONGTEXT N_( \
  52     "Allows you to specify the destination video codec used for the " \
  53     "streaming output." )
  54 #define VB_TEXT N_("Video bitrate")
  55 #define VB_LONGTEXT N_( \
  56     "Allows you to specify the video bitrate used for the streaming " \
  57     "output." )
  58 #define SCALE_TEXT N_("Video scaling")
  59 #define SCALE_LONGTEXT N_( \
  60     "Allows you to scale the video before encoding." )
  61 #define FPS_TEXT N_("Video frame-rate")
  62 #define FPS_LONGTEXT N_( \
  63     "Allows you to specify an output frame rate for the video." )
  64 #define DEINTERLACE_TEXT N_("Deinterlace video")
  65 #define DEINTERLACE_LONGTEXT N_( \
  66     "Allows you to deinterlace the video before encoding." )
  67 #define DEINTERLACE_MODULE_TEXT N_("Deinterlace module")
  68 #define DEINTERLACE_MODULE_LONGTEXT N_( \
  69     "Specifies the deinterlace module to use." )
  70 #define WIDTH_TEXT N_("Video width")
  71 #define WIDTH_LONGTEXT N_( \
  72     "Allows you to specify the output video width." )
  73 #define HEIGHT_TEXT N_("Video height")
  74 #define HEIGHT_LONGTEXT N_( \
  75     "Allows you to specify the output video height." )
  76 #define MAXWIDTH_TEXT N_("Maximum video width")
  77 #define MAXWIDTH_LONGTEXT N_( \
  78     "Allows you to specify a maximum output video width." )
  79 #define MAXHEIGHT_TEXT N_("Maximum video height")
  80 #define MAXHEIGHT_LONGTEXT N_( \
  81     "Allows you to specify a maximum output video height." )
  82 #define VFILTER_TEXT N_("Video filter")
  83 #define VFILTER_LONGTEXT N_( \
  84     "Allows you to specify video filters used after the video " \
  85     "transcoding and subpictures overlaying." )
  86
  87 #define CROPTOP_TEXT N_("Video crop top")
  88 #define CROPTOP_LONGTEXT N_( \
  89     "Allows you to specify the top coordinate for the video cropping." )
  90 #define CROPLEFT_TEXT N_("Video crop left")
  91 #define CROPLEFT_LONGTEXT N_( \
  92     "Allows you to specify the left coordinate for the video cropping." )
  93 #define CROPBOTTOM_TEXT N_("Video crop bottom")
  94 #define CROPBOTTOM_LONGTEXT N_( \
  95     "Allows you to specify the bottom coordinate for the video cropping." )
  96 #define CROPRIGHT_TEXT N_("Video crop right")
  97 #define CROPRIGHT_LONGTEXT N_( \
  98     "Allows you to specify the right coordinate for the video cropping." )
  99
 100 #define AENC_TEXT N_("Audio encoder")
 101 #define AENC_LONGTEXT N_( \
 102     "Allows you to specify the audio encoder to use and its associated " \
 103     "options." )
 104 #define ACODEC_TEXT N_("Destination audio codec")
 105 #define ACODEC_LONGTEXT N_( \
 106     "Allows you to specify the destination audio codec used for the " \
 107     "streaming output." )
 108 #define AB_TEXT N_("Audio bitrate")
 109 #define AB_LONGTEXT N_( \
 110     "Allows you to specify the audio bitrate used for the streaming " \
 111     "output." )
 112 #define ARATE_TEXT N_("Audio sample rate")
 113 #define ARATE_LONGTEXT N_( \
 114     "Allows you to specify the audio sample rate used for the streaming " \
 115     "output." )
 116 #define ACHANS_TEXT N_("Audio channels")
 117 #define ACHANS_LONGTEXT N_( \
 118     "Allows you to specify the number of audio channels used for the " \
 119     "streaming output." )
 120
 121 #define SENC_TEXT N_("Subtitles encoder")
 122 #define SENC_LONGTEXT N_( \
 123     "Allows you to specify the subtitles encoder to use and its associated " \
 124     "options." )
 125 #define SCODEC_TEXT N_("Destination subtitles codec")
 126 #define SCODEC_LONGTEXT N_( \
 127     "Allows you to specify the destination subtitles codec used for the " \
 128     "streaming output." )
 129 #define SFILTER_TEXT N_("Subpictures filter")
 130 #define SFILTER_LONGTEXT N_( \
 131     "Allows you to specify subpictures filters used during the video " \
 132     "transcoding. The subpictures produced by the filters will be overlayed " \
 133     "directly onto the video." )
 134
 135 #define OSD_TEXT N_("OSD menu")
 136 #define OSD_LONGTEXT N_(\
 137     "Enable streaming of the On Screen Display. It uses the osdmenu subfilter." )
 138
 139 #define THREADS_TEXT N_("Number of threads")
 140 #define THREADS_LONGTEXT N_( \
 141     "Allows you to specify the number of threads used for the transcoding." )
 142 #define HP_TEXT N_("High priority")
 143 #define HP_LONGTEXT N_( \
 144     "Runs the optional encoder thread at the OUTPUT priority instead of " \
 145     "VIDEO." )
 146
 147 #define ASYNC_TEXT N_("Synchronise on audio track")
 148 #define ASYNC_LONGTEXT N_( \
 149     "This option will drop/duplicate video frames to synchronise the video " \
 150     "track on the audio track." )
 151
 152 #define HURRYUP_TEXT N_( "Hurry up" )
 153 #define HURRYUP_LONGTEXT N_( "Allows you to specify if the transcoder " \
 154   "should drop frames if your CPU can't keep up with the encoding rate." )
 155
 156 static char *ppsz_deinterlace_type[] =
 157 {
 158     "deinterlace", "ffmpeg-deinterlace"
 159 };
 160
 161 static int  Open ( vlc_object_t * );
 162 static void Close( vlc_object_t * );
 163
 164 #define SOUT_CFG_PREFIX "sout-transcode-"
 165
 166 vlc_module_begin();
 167     set_shortname( _("Transcode"));
 168     set_description( _("Transcode stream output") );
 169     set_capability( "sout stream", 50 );
 170     add_shortcut( "transcode" );
 171     set_callbacks( Open, Close );
 172     set_category( CAT_SOUT );
 173     set_subcategory( SUBCAT_SOUT_STREAM );
 174     set_section( N_("Video"), NULL );
 175     add_string( SOUT_CFG_PREFIX "venc", NULL, NULL, VENC_TEXT,
 176                 VENC_LONGTEXT, VLC_FALSE );
 177     add_string( SOUT_CFG_PREFIX "vcodec", NULL, NULL, VCODEC_TEXT,
 178                 VCODEC_LONGTEXT, VLC_FALSE );
 179     add_integer( SOUT_CFG_PREFIX "vb", 800 * 1000, NULL, VB_TEXT,
 180                  VB_LONGTEXT, VLC_FALSE );
 181     add_float( SOUT_CFG_PREFIX "scale", 1, NULL, SCALE_TEXT,
 182                SCALE_LONGTEXT, VLC_FALSE );
 183     add_float( SOUT_CFG_PREFIX "fps", 0, NULL, FPS_TEXT,
 184                FPS_LONGTEXT, VLC_FALSE );
 185     add_bool( SOUT_CFG_PREFIX "hurry-up", VLC_TRUE, NULL, HURRYUP_TEXT,
 186                HURRYUP_LONGTEXT, VLC_FALSE );
 187     add_bool( SOUT_CFG_PREFIX "deinterlace", 0, NULL, DEINTERLACE_TEXT,
 188               DEINTERLACE_LONGTEXT, VLC_FALSE );
 189     add_string( SOUT_CFG_PREFIX "deinterlace-module", "deinterlace", NULL,
 190                 DEINTERLACE_MODULE_TEXT, DEINTERLACE_MODULE_LONGTEXT,
 191                 VLC_FALSE );
 192         change_string_list( ppsz_deinterlace_type, 0, 0 );
 193     add_integer( SOUT_CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
 194                  WIDTH_LONGTEXT, VLC_TRUE );
 195     add_integer( SOUT_CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
 196                  HEIGHT_LONGTEXT, VLC_TRUE );
 197     add_integer( SOUT_CFG_PREFIX "maxwidth", 0, NULL, MAXWIDTH_TEXT,
 198                  MAXWIDTH_LONGTEXT, VLC_TRUE );
 199     add_integer( SOUT_CFG_PREFIX "maxheight", 0, NULL, MAXHEIGHT_TEXT,
 200                  MAXHEIGHT_LONGTEXT, VLC_TRUE );
 201     add_module_list_cat( SOUT_CFG_PREFIX "vfilter", SUBCAT_VIDEO_VFILTER,
 202                      NULL, NULL,
 203                      VFILTER_TEXT, VFILTER_LONGTEXT, VLC_FALSE );
 204
 205     add_integer( SOUT_CFG_PREFIX "croptop", 0, NULL, CROPTOP_TEXT,
 206                  CROPTOP_LONGTEXT, VLC_TRUE );
 207     add_integer( SOUT_CFG_PREFIX "cropleft", 0, NULL, CROPLEFT_TEXT,
 208                  CROPLEFT_LONGTEXT, VLC_TRUE );
 209     add_integer( SOUT_CFG_PREFIX "cropbottom", 0, NULL, CROPBOTTOM_TEXT,
 210                  CROPBOTTOM_LONGTEXT, VLC_TRUE );
 211     add_integer( SOUT_CFG_PREFIX "cropright", 0, NULL, CROPRIGHT_TEXT,
 212                  CROPRIGHT_LONGTEXT, VLC_TRUE );
 213
 214     set_section( N_("Audio"), NULL );
 215     add_string( SOUT_CFG_PREFIX "aenc", NULL, NULL, AENC_TEXT,
 216                 AENC_LONGTEXT, VLC_FALSE );
 217     add_string( SOUT_CFG_PREFIX "acodec", NULL, NULL, ACODEC_TEXT,
 218                 ACODEC_LONGTEXT, VLC_FALSE );
 219     add_integer( SOUT_CFG_PREFIX "ab", 64000, NULL, AB_TEXT,
 220                  AB_LONGTEXT, VLC_FALSE );
 221     add_integer( SOUT_CFG_PREFIX "channels", 0, NULL, ACHANS_TEXT,
 222                  ACHANS_LONGTEXT, VLC_FALSE );
 223     add_integer( SOUT_CFG_PREFIX "samplerate", 0, NULL, ARATE_TEXT,
 224                  ARATE_LONGTEXT, VLC_TRUE );
 225     add_bool( SOUT_CFG_PREFIX "audio-sync", 0, NULL, ASYNC_TEXT,
 226               ASYNC_LONGTEXT, VLC_FALSE );
 227
 228     set_section( N_("Overlays/Subtitles"), NULL );
 229     add_string( SOUT_CFG_PREFIX "senc", NULL, NULL, SENC_TEXT,
 230                 SENC_LONGTEXT, VLC_FALSE );
 231     add_string( SOUT_CFG_PREFIX "scodec", NULL, NULL, SCODEC_TEXT,
 232                 SCODEC_LONGTEXT, VLC_FALSE );
 233     add_bool( SOUT_CFG_PREFIX "soverlay", 0, NULL, SCODEC_TEXT,
 234                SCODEC_LONGTEXT, VLC_FALSE );
 235     add_module_list_cat( SOUT_CFG_PREFIX "sfilter", SUBCAT_VIDEO_SUBPIC,
 236                      NULL, NULL,
 237                      SFILTER_TEXT, SFILTER_LONGTEXT, VLC_FALSE );
 238
 239     set_section( N_("On Screen Display"), NULL );
 240     add_bool( SOUT_CFG_PREFIX "osd", 0, NULL, OSD_TEXT,
 241               OSD_LONGTEXT, VLC_FALSE );
 242
 243     set_section( N_("Miscellaneous"), NULL );
 244     add_integer( SOUT_CFG_PREFIX "threads", 0, NULL, THREADS_TEXT,
 245                  THREADS_LONGTEXT, VLC_TRUE );
 246     add_bool( SOUT_CFG_PREFIX "high-priority", 0, NULL, HP_TEXT, HP_LONGTEXT,
 247               VLC_TRUE );
 248
 249 vlc_module_end();
 250
 251 static const char *ppsz_sout_options[] = {
 252     "venc", "vcodec", "vb", "croptop", "cropbottom", "cropleft", "cropright",
 253     "scale", "fps", "width", "height", "vfilter", "deinterlace",
 254     "deinterlace-module", "threads", "hurry-up", "aenc", "acodec", "ab",
 255     "samplerate", "channels", "senc", "scodec", "soverlay", "sfilter",
 256     "osd", "audio-sync", "high-priority", "maxwidth", "maxheight", NULL
 257 };
 258
 259 /*****************************************************************************
 260  * Exported prototypes
 261  *****************************************************************************/
 262 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
 263 static int               Del ( sout_stream_t *, sout_stream_id_t * );
 264 static int               Send( sout_stream_t *, sout_stream_id_t *, block_t* );
 265
 266 static int  transcode_audio_new    ( sout_stream_t *, sout_stream_id_t * );
 267 static void transcode_audio_close  ( sout_stream_t *, sout_stream_id_t * );
 268 static int  transcode_audio_process( sout_stream_t *, sout_stream_id_t *,
 269                                      block_t *, block_t ** );
 270
 271 static aout_buffer_t *audio_new_buffer( decoder_t *, int );
 272 static void audio_del_buffer( decoder_t *, aout_buffer_t * );
 273
 274 static int  transcode_video_new    ( sout_stream_t *, sout_stream_id_t * );
 275 static void transcode_video_close  ( sout_stream_t *, sout_stream_id_t * );
 276 static int  transcode_video_encoder_open( sout_stream_t *, sout_stream_id_t *);
 277 static int  transcode_video_process( sout_stream_t *, sout_stream_id_t *,
 278                                      block_t *, block_t ** );
 279
 280 static void video_del_buffer( vlc_object_t *, picture_t * );
 281 static picture_t *video_new_buffer_decoder( decoder_t * );
 282 static void video_del_buffer_decoder( decoder_t *, picture_t * );
 283 static void video_link_picture_decoder( decoder_t *, picture_t * );
 284 static void video_unlink_picture_decoder( decoder_t *, picture_t * );
 285 static picture_t *video_new_buffer_filter( filter_t * );
 286 static void video_del_buffer_filter( filter_t *, picture_t * );
 287
 288 static int  transcode_spu_new    ( sout_stream_t *, sout_stream_id_t * );
 289 static void transcode_spu_close  ( sout_stream_t *, sout_stream_id_t * );
 290 static int  transcode_spu_process( sout_stream_t *, sout_stream_id_t *,
 291                                    block_t *, block_t ** );
 292
 293 static int  transcode_osd_new    ( sout_stream_t *, sout_stream_id_t * );
 294 static void transcode_osd_close  ( sout_stream_t *, sout_stream_id_t * );
 295 static int  transcode_osd_process( sout_stream_t *, sout_stream_id_t *,
 296                                    block_t *, block_t ** );
 297
 298 static int  EncoderThread( struct sout_stream_sys_t * p_sys );
 299
 300 static int pi_channels_maps[6] =
 301 {
 302     0,
 303     AOUT_CHAN_CENTER,   AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
 304     AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
 305     AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
 306      | AOUT_CHAN_REARRIGHT,
 307     AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
 308      | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
 309 };
 310
 311 #define PICTURE_RING_SIZE 64
 312 #define SUBPICTURE_RING_SIZE 20
 313
 314 struct sout_stream_sys_t
 315 {
 316     VLC_COMMON_MEMBERS
 317
 318     sout_stream_t   *p_out;
 319     sout_stream_id_t *id_video;
 320     block_t         *p_buffers;
 321     vlc_mutex_t     lock_out;
 322     vlc_cond_t      cond;
 323     picture_t *     pp_pics[PICTURE_RING_SIZE];
 324     int             i_first_pic, i_last_pic;
 325
 326     /* Audio */
 327     vlc_fourcc_t    i_acodec;   /* codec audio (0 if not transcode) */
 328     char            *psz_aenc;
 329     sout_cfg_t      *p_audio_cfg;
 330     int             i_sample_rate;
 331     int             i_channels;
 332     int             i_abitrate;
 333
 334     /* Video */
 335     vlc_fourcc_t    i_vcodec;   /* codec video (0 if not transcode) */
 336     char            *psz_venc;
 337     sout_cfg_t      *p_video_cfg;
 338     int             i_vbitrate;
 339     double          f_scale;
 340     double          f_fps;
 341     unsigned int    i_width, i_maxwidth;
 342     unsigned int    i_height, i_maxheight;
 343     vlc_bool_t      b_deinterlace;
 344     char            *psz_deinterlace;
 345     sout_cfg_t      *p_deinterlace_cfg;
 346     int             i_threads;
 347     vlc_bool_t      b_high_priority;
 348     vlc_bool_t      b_hurry_up;
 349     char            *psz_vfilters[10];
 350     sout_cfg_t      *p_vfilters_cfg[10];
 351     int             i_vfilters;
 352
 353     int             i_crop_top;
 354     int             i_crop_bottom;
 355     int             i_crop_right;
 356     int             i_crop_left;
 357
 358     /* SPU */
 359     vlc_fourcc_t    i_scodec;   /* codec spu (0 if not transcode) */
 360     char            *psz_senc;
 361     vlc_bool_t      b_soverlay;
 362     sout_cfg_t      *p_spu_cfg;
 363     spu_t           *p_spu;
 364
 365     /* OSD Menu */
 366     sout_stream_id_t *id_osd;   /* extension for streaming OSD menus */
 367     vlc_fourcc_t    i_osdcodec; /* codec osd menu (0 if not transcode) */
 368     char            *psz_osdenc;
 369     sout_cfg_t      *p_osd_cfg;
 370     vlc_bool_t      b_es_osd;      /* VLC_TRUE when osd es is registered */
 371     vlc_bool_t      b_sout_osd;
 372
 373     /* Sync */
 374     vlc_bool_t      b_master_sync;
 375     mtime_t         i_master_drift;
 376 };
 377
 378 struct decoder_owner_sys_t
 379 {
 380     picture_t *pp_pics[PICTURE_RING_SIZE];
 381     sout_stream_sys_t *p_sys;
 382 };
 383 struct filter_owner_sys_t
 384 {
 385     picture_t *pp_pics[PICTURE_RING_SIZE];
 386     sout_stream_sys_t *p_sys;
 387 };
 388
 389 /*****************************************************************************
 390  * Open:
 391  *****************************************************************************/
 392 static int Open( vlc_object_t *p_this )
 393 {
 394     sout_stream_t     *p_stream = (sout_stream_t*)p_this;
 395     sout_stream_sys_t *p_sys;
 396     vlc_value_t       val;
 397
 398     p_sys = vlc_object_create( p_this, sizeof( sout_stream_sys_t ) );
 399
 400     p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
 401     if( !p_sys->p_out )
 402     {
 403         msg_Err( p_stream, "cannot create chain" );
 404         vlc_object_destroy( p_sys );
 405         return VLC_EGENERIC;
 406     }
 407
 408     p_sys->i_master_drift = 0;
 409
 410     sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
 411                    p_stream->p_cfg );
 412
 413     /* Audio transcoding parameters */
 414     var_Get( p_stream, SOUT_CFG_PREFIX "aenc", &val );
 415     p_sys->psz_aenc = NULL;
 416     p_sys->p_audio_cfg = NULL;
 417     if( val.psz_string && *val.psz_string )
 418     {
 419         char *psz_next;
 420         psz_next = sout_CfgCreate( &p_sys->psz_aenc, &p_sys->p_audio_cfg,
 421                                    val.psz_string );
 422         if( psz_next ) free( psz_next );
 423     }
 424     if( val.psz_string ) free( val.psz_string );
 425
 426     var_Get( p_stream, SOUT_CFG_PREFIX "acodec", &val );
 427     p_sys->i_acodec = 0;
 428     if( val.psz_string && *val.psz_string )
 429     {
 430         char fcc[4] = "    ";
 431         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
 432         p_sys->i_acodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
 433     }
 434     if( val.psz_string ) free( val.psz_string );
 435
 436     var_Get( p_stream, SOUT_CFG_PREFIX "ab", &val );
 437     p_sys->i_abitrate = val.i_int;
 438     if( p_sys->i_abitrate < 4000 ) p_sys->i_abitrate *= 1000;
 439
 440     var_Get( p_stream, SOUT_CFG_PREFIX "samplerate", &val );
 441     p_sys->i_sample_rate = val.i_int;
 442
 443     var_Get( p_stream, SOUT_CFG_PREFIX "channels", &val );
 444     p_sys->i_channels = val.i_int;
 445
 446     if( p_sys->i_acodec )
 447     {
 448         if( (strncmp( (char *)&p_sys->i_acodec, "mp3", 3) == 0) &&
 449                             (p_sys->i_channels > 2) )
 450         {
 451             msg_Warn( p_stream, "%d channels invalid for mp3, forcing to 2",
 452                       p_sys->i_channels );
 453             p_sys->i_channels = 2;
 454         }
 455         msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
 456                  (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
 457                  p_sys->i_channels, p_sys->i_abitrate / 1000 );
 458     }
 459
 460     /* Video transcoding parameters */
 461     var_Get( p_stream, SOUT_CFG_PREFIX "venc", &val );
 462     p_sys->psz_venc = NULL;
 463     p_sys->p_video_cfg = NULL;
 464     if( val.psz_string && *val.psz_string )
 465     {
 466         char *psz_next;
 467         psz_next = sout_CfgCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
 468                                    val.psz_string );
 469         if( psz_next ) free( psz_next );
 470     }
 471     if( val.psz_string ) free( val.psz_string );
 472
 473     var_Get( p_stream, SOUT_CFG_PREFIX "vcodec", &val );
 474     p_sys->i_vcodec = 0;
 475     if( val.psz_string && *val.psz_string )
 476     {
 477         char fcc[4] = "    ";
 478         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
 479         p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
 480     }
 481     if( val.psz_string ) free( val.psz_string );
 482
 483     var_Get( p_stream, SOUT_CFG_PREFIX "vb", &val );
 484     p_sys->i_vbitrate = val.i_int;
 485     if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
 486
 487     var_Get( p_stream, SOUT_CFG_PREFIX "scale", &val );
 488     p_sys->f_scale = val.f_float;
 489
 490     var_Get( p_stream, SOUT_CFG_PREFIX "fps", &val );
 491     p_sys->f_fps = val.f_float;
 492
 493     var_Get( p_stream, SOUT_CFG_PREFIX "hurry-up", &val );
 494     p_sys->b_hurry_up = val.b_bool;
 495
 496     var_Get( p_stream, SOUT_CFG_PREFIX "width", &val );
 497     p_sys->i_width = val.i_int;
 498
 499     var_Get( p_stream, SOUT_CFG_PREFIX "height", &val );
 500     p_sys->i_height = val.i_int;
 501
 502     var_Get( p_stream, SOUT_CFG_PREFIX "maxwidth", &val );
 503     p_sys->i_maxwidth = val.i_int;
 504
 505     var_Get( p_stream, SOUT_CFG_PREFIX "maxheight", &val );
 506     p_sys->i_maxheight = val.i_int;
 507
 508     var_Get( p_stream, SOUT_CFG_PREFIX "vfilter", &val );
 509     p_sys->i_vfilters = 0;
 510     if( val.psz_string && *val.psz_string )
 511     {
 512         char *psz_parser = val.psz_string;
 513
 514         while( psz_parser != NULL && *psz_parser != '\0' )
 515         {
 516             psz_parser = sout_CfgCreate(
 517                                    &p_sys->psz_vfilters[p_sys->i_vfilters],
 518                                    &p_sys->p_vfilters_cfg[p_sys->i_vfilters],
 519                                    psz_parser );
 520             p_sys->i_vfilters++;
 521             if( psz_parser != NULL && *psz_parser != '\0' ) psz_parser++;
 522         }
 523     }
 524     if( val.psz_string ) free( val.psz_string );
 525     p_sys->psz_vfilters[p_sys->i_vfilters] = NULL;
 526     p_sys->p_vfilters_cfg[p_sys->i_vfilters] = NULL;
 527
 528     var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace", &val );
 529     p_sys->b_deinterlace = val.b_bool;
 530
 531     var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace-module", &val );
 532     p_sys->psz_deinterlace = NULL;
 533     p_sys->p_deinterlace_cfg = NULL;
 534     if( val.psz_string && *val.psz_string )
 535     {
 536         char *psz_next;
 537         psz_next = sout_CfgCreate( &p_sys->psz_deinterlace,
 538                                    &p_sys->p_deinterlace_cfg,
 539                                    val.psz_string );
 540         if( psz_next ) free( psz_next );
 541     }
 542     if( val.psz_string ) free( val.psz_string );
 543
 544     var_Get( p_stream, SOUT_CFG_PREFIX "croptop", &val );
 545     p_sys->i_crop_top = val.i_int;
 546     var_Get( p_stream, SOUT_CFG_PREFIX "cropbottom", &val );
 547     p_sys->i_crop_bottom = val.i_int;
 548     var_Get( p_stream, SOUT_CFG_PREFIX "cropleft", &val );
 549     p_sys->i_crop_left = val.i_int;
 550     var_Get( p_stream, SOUT_CFG_PREFIX "cropright", &val );
 551     p_sys->i_crop_right = val.i_int;
 552
 553     var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
 554     p_sys->i_threads = val.i_int;
 555     var_Get( p_stream, SOUT_CFG_PREFIX "high-priority", &val );
 556     p_sys->b_high_priority = val.b_bool;
 557
 558     if( p_sys->i_vcodec )
 559     {
 560         msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
 561                  (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
 562                  p_sys->f_scale, p_sys->i_vbitrate / 1000 );
 563     }
 564
 565     /* Subpictures transcoding parameters */
 566     p_sys->p_spu = NULL;
 567     p_sys->psz_senc = NULL;
 568     p_sys->p_spu_cfg = NULL;
 569     p_sys->i_scodec = 0;
 570
 571     var_Get( p_stream, SOUT_CFG_PREFIX "senc", &val );
 572     if( val.psz_string && *val.psz_string )
 573     {
 574         char *psz_next;
 575         psz_next = sout_CfgCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
 576                                    val.psz_string );
 577         if( psz_next ) free( psz_next );
 578     }
 579     if( val.psz_string ) free( val.psz_string );
 580
 581     var_Get( p_stream, SOUT_CFG_PREFIX "scodec", &val );
 582     if( val.psz_string && *val.psz_string )
 583     {
 584         char fcc[4] = "    ";
 585         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
 586         p_sys->i_scodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
 587     }
 588     if( val.psz_string ) free( val.psz_string );
 589
 590     if( p_sys->i_scodec )
 591     {
 592         msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_scodec );
 593     }
 594
 595     var_Get( p_stream, SOUT_CFG_PREFIX "soverlay", &val );
 596     p_sys->b_soverlay = val.b_bool;
 597
 598     var_Get( p_stream, SOUT_CFG_PREFIX "sfilter", &val );
 599     if( val.psz_string && *val.psz_string )
 600     {
 601         p_sys->p_spu = spu_Create( p_stream );
 602         var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
 603         var_Set( p_sys->p_spu, "sub-filter", val );
 604         spu_Init( p_sys->p_spu );
 605     }
 606     if( val.psz_string ) free( val.psz_string );
 607
 608     /* OSD menu transcoding parameters */
 609     p_sys->psz_osdenc = NULL;
 610     p_sys->p_osd_cfg  = NULL;
 611     p_sys->i_osdcodec = 0;
 612     p_sys->b_es_osd   = VLC_FALSE;
 613
 614     var_Get( p_stream, SOUT_CFG_PREFIX "osd", &val );
 615     p_sys->b_sout_osd = val.b_bool;
 616     if( p_sys->b_sout_osd )
 617     {
 618         vlc_value_t osd_val;
 619         char *psz_next;
 620
 621         psz_next = sout_CfgCreate( &p_sys->psz_osdenc,
 622                                    &p_sys->p_osd_cfg, strdup( "dvbsub") );
 623         if( psz_next ) free( psz_next );
 624
 625         p_sys->i_osdcodec = VLC_FOURCC('Y','U','V','P' );
 626
 627         msg_Dbg( p_stream, "codec osd=%4.4s", (char *)&p_sys->i_osdcodec );
 628
 629         if( !p_sys->p_spu )
 630         {
 631             osd_val.psz_string = strdup("osdmenu");
 632             p_sys->p_spu = spu_Create( p_stream );
 633             var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
 634             var_Set( p_sys->p_spu, "sub-filter", osd_val );
 635             spu_Init( p_sys->p_spu );
 636             if( osd_val.psz_string ) free( osd_val.psz_string );
 637         }
 638         else
 639         {
 640             osd_val.psz_string = strdup("osdmenu");
 641             var_Set( p_sys->p_spu, "sub-filter", osd_val );
 642             if( osd_val.psz_string ) free( osd_val.psz_string );
 643         }
 644     }
 645
 646     /* Audio settings */
 647     var_Get( p_stream, SOUT_CFG_PREFIX "audio-sync", &val );
 648     p_sys->b_master_sync = val.b_bool;
 649     if( p_sys->f_fps > 0 ) p_sys->b_master_sync = VLC_TRUE;
 650
 651     p_stream->pf_add    = Add;
 652     p_stream->pf_del    = Del;
 653     p_stream->pf_send   = Send;
 654     p_stream->p_sys     = p_sys;
 655
 656     return VLC_SUCCESS;
 657 }
 658
 659 /*****************************************************************************
 660  * Close:
 661  *****************************************************************************/
 662 static void Close( vlc_object_t * p_this )
 663 {
 664     sout_stream_t       *p_stream = (sout_stream_t*)p_this;
 665     sout_stream_sys_t   *p_sys = p_stream->p_sys;
 666
 667     sout_StreamDelete( p_sys->p_out );
 668
 669     while( p_sys->p_audio_cfg != NULL )
 670     {
 671         sout_cfg_t *p_next = p_sys->p_audio_cfg->p_next;
 672
 673         if( p_sys->p_audio_cfg->psz_name )
 674             free( p_sys->p_audio_cfg->psz_name );
 675         if( p_sys->p_audio_cfg->psz_value )
 676             free( p_sys->p_audio_cfg->psz_value );
 677         free( p_sys->p_audio_cfg );
 678
 679         p_sys->p_audio_cfg = p_next;
 680     }
 681     if( p_sys->psz_aenc ) free( p_sys->psz_aenc );
 682
 683     while( p_sys->p_video_cfg != NULL )
 684     {
 685         sout_cfg_t *p_next = p_sys->p_video_cfg->p_next;
 686
 687         if( p_sys->p_video_cfg->psz_name )
 688             free( p_sys->p_video_cfg->psz_name );
 689         if( p_sys->p_video_cfg->psz_value )
 690             free( p_sys->p_video_cfg->psz_value );
 691         free( p_sys->p_video_cfg );
 692
 693         p_sys->p_video_cfg = p_next;
 694     }
 695     if( p_sys->psz_venc ) free( p_sys->psz_venc );
 696
 697     while( p_sys->p_deinterlace_cfg != NULL )
 698     {
 699         sout_cfg_t *p_next = p_sys->p_deinterlace_cfg->p_next;
 700
 701         if( p_sys->p_deinterlace_cfg->psz_name )
 702             free( p_sys->p_deinterlace_cfg->psz_name );
 703         if( p_sys->p_deinterlace_cfg->psz_value )
 704             free( p_sys->p_deinterlace_cfg->psz_value );
 705         free( p_sys->p_deinterlace_cfg );
 706
 707         p_sys->p_deinterlace_cfg = p_next;
 708     }
 709     if( p_sys->psz_deinterlace ) free( p_sys->psz_deinterlace );
 710
 711     while( p_sys->p_spu_cfg != NULL )
 712     {
 713         sout_cfg_t *p_next = p_sys->p_spu_cfg->p_next;
 714
 715         if( p_sys->p_spu_cfg->psz_name )
 716             free( p_sys->p_spu_cfg->psz_name );
 717         if( p_sys->p_spu_cfg->psz_value )
 718             free( p_sys->p_spu_cfg->psz_value );
 719         free( p_sys->p_spu_cfg );
 720
 721         p_sys->p_spu_cfg = p_next;
 722     }
 723     if( p_sys->psz_senc ) free( p_sys->psz_senc );
 724
 725     if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
 726
 727     while( p_sys->p_osd_cfg != NULL )
 728     {
 729         sout_cfg_t *p_next = p_sys->p_osd_cfg->p_next;
 730
 731         if( p_sys->p_osd_cfg->psz_name )
 732             free( p_sys->p_osd_cfg->psz_name );
 733         if( p_sys->p_osd_cfg->psz_value )
 734             free( p_sys->p_osd_cfg->psz_value );
 735         free( p_sys->p_osd_cfg );
 736
 737         p_sys->p_osd_cfg = p_next;
 738     }
 739     if( p_sys->psz_osdenc ) free( p_sys->psz_osdenc );
 740
 741     vlc_object_destroy( p_sys );
 742 }
 743
 744 struct sout_stream_id_t
 745 {
 746     vlc_fourcc_t  b_transcode;
 747
 748     /* id of the out stream */
 749     void *id;
 750
 751     /* Decoder */
 752     decoder_t       *p_decoder;
 753
 754     /* Filters */
 755     filter_t        *pp_filter[10];
 756     int             i_filter;
 757     filter_t        *pp_vfilter[10];
 758     int             i_vfilter;
 759
 760     /* Encoder */
 761     encoder_t       *p_encoder;
 762
 763     /* Sync */
 764     date_t          interpolated_pts;
 765 };
 766
 767 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
 768 {
 769     sout_stream_sys_t *p_sys = p_stream->p_sys;
 770     sout_stream_id_t *id;
 771
 772     id = malloc( sizeof( sout_stream_id_t ) );
 773     memset( id, 0, sizeof(sout_stream_id_t) );
 774
 775     id->id = NULL;
 776     id->p_decoder = NULL;
 777     id->p_encoder = NULL;
 778
 779     /* Create decoder object */
 780     id->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
 781     if( !id->p_decoder )
 782     {
 783         msg_Err( p_stream, "out of memory" );
 784         goto error;
 785     }
 786     vlc_object_attach( id->p_decoder, p_stream );
 787     id->p_decoder->p_module = NULL;
 788     id->p_decoder->fmt_in = *p_fmt;
 789     id->p_decoder->b_pace_control = VLC_TRUE;
 790
 791     /* Create encoder object */
 792     id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
 793     if( !id->p_encoder )
 794     {
 795         msg_Err( p_stream, "out of memory" );
 796         goto error;
 797     }
 798     vlc_object_attach( id->p_encoder, p_stream );
 799     id->p_encoder->p_module = NULL;
 800
 801     /* Create destination format */
 802     es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
 803     id->p_encoder->fmt_out.i_id    = p_fmt->i_id;
 804     id->p_encoder->fmt_out.i_group = p_fmt->i_group;
 805     if( p_fmt->psz_language )
 806         id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
 807
 808     if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
 809     {
 810         msg_Dbg( p_stream,
 811                  "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
 812                  (char*)&p_fmt->i_codec, (char*)&p_sys->i_acodec );
 813
 814         /* Complete destination format */
 815         id->p_encoder->fmt_out.i_codec = p_sys->i_acodec;
 816         id->p_encoder->fmt_out.audio.i_rate = p_sys->i_sample_rate > 0 ?
 817             p_sys->i_sample_rate : (int)p_fmt->audio.i_rate;
 818         id->p_encoder->fmt_out.i_bitrate = p_sys->i_abitrate;
 819         id->p_encoder->fmt_out.audio.i_bitspersample =
 820             p_fmt->audio.i_bitspersample;
 821         id->p_encoder->fmt_out.audio.i_channels = p_sys->i_channels > 0 ?
 822             p_sys->i_channels : p_fmt->audio.i_channels;
 823         /* Sanity check for audio channels */
 824         id->p_encoder->fmt_out.audio.i_channels =
 825             __MIN( id->p_encoder->fmt_out.audio.i_channels,
 826                    id->p_decoder->fmt_in.audio.i_channels );
 827         id->p_encoder->fmt_out.audio.i_original_channels =
 828             id->p_decoder->fmt_in.audio.i_physical_channels;
 829         if( id->p_decoder->fmt_in.audio.i_channels ==
 830             id->p_encoder->fmt_out.audio.i_channels )
 831         {
 832             id->p_encoder->fmt_out.audio.i_physical_channels =
 833                 id->p_decoder->fmt_in.audio.i_physical_channels;
 834         }
 835         else
 836         {
 837             id->p_encoder->fmt_out.audio.i_physical_channels =
 838                 pi_channels_maps[id->p_encoder->fmt_out.audio.i_channels];
 839         }
 840
 841         /* Build decoder -> filter -> encoder chain */
 842         if( transcode_audio_new( p_stream, id ) )
 843         {
 844             msg_Err( p_stream, "cannot create audio chain" );
 845             goto error;
 846         }
 847
 848         /* Open output stream */
 849         id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
 850         id->b_transcode = VLC_TRUE;
 851
 852         if( !id->id )
 853         {
 854             transcode_audio_close( p_stream, id );
 855             goto error;
 856         }
 857
 858         date_Init( &id->interpolated_pts, p_fmt->audio.i_rate, 1 );
 859     }
 860     else if( p_fmt->i_cat == VIDEO_ES &&
 861              (p_sys->i_vcodec != 0 || p_sys->psz_venc) )
 862     {
 863         msg_Dbg( p_stream,
 864                  "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
 865                  (char*)&p_fmt->i_codec, (char*)&p_sys->i_vcodec );
 866
 867         /* Complete destination format */
 868         id->p_encoder->fmt_out.i_codec = p_sys->i_vcodec;
 869         id->p_encoder->fmt_out.video.i_width  = p_sys->i_width;
 870         id->p_encoder->fmt_out.video.i_height = p_sys->i_height;
 871         id->p_encoder->fmt_out.i_bitrate = p_sys->i_vbitrate;
 872
 873         /* Build decoder -> filter -> encoder chain */
 874         if( transcode_video_new( p_stream, id ) )
 875         {
 876             msg_Err( p_stream, "cannot create video chain" );
 877             goto error;
 878         }
 879
 880         /* Stream will be added later on because we don't know
 881          * all the characteristics of the decoded stream yet */
 882         id->b_transcode = VLC_TRUE;
 883
 884         if( p_sys->f_fps > 0 )
 885         {
 886             id->p_encoder->fmt_out.video.i_frame_rate =
 887                 (p_sys->f_fps * 1001) + 0.5;
 888             id->p_encoder->fmt_out.video.i_frame_rate_base = 1001;
 889         }
 890     }
 891     else if( p_fmt->i_cat == SPU_ES && (p_sys->i_scodec || p_sys->psz_senc) )
 892     {
 893         msg_Dbg( p_stream, "creating subtitles transcoding from fcc=`%4.4s' "
 894                  "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
 895                  (char*)&p_sys->i_scodec );
 896
 897         /* Complete destination format */
 898         id->p_encoder->fmt_out.i_codec = p_sys->i_scodec;
 899
 900         /* build decoder -> filter -> encoder */
 901         if( transcode_spu_new( p_stream, id ) )
 902         {
 903             msg_Err( p_stream, "cannot create subtitles chain" );
 904             goto error;
 905         }
 906
 907         /* open output stream */
 908         id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
 909         id->b_transcode = VLC_TRUE;
 910
 911         if( !id->id )
 912         {
 913             transcode_spu_close( p_stream, id );
 914             goto error;
 915         }
 916     }
 917     else if( p_fmt->i_cat == SPU_ES && p_sys->b_soverlay )
 918     {
 919         msg_Dbg( p_stream, "subtitles (fcc=`%4.4s') overlaying",
 920                  (char*)&p_fmt->i_codec );
 921
 922         id->b_transcode = VLC_TRUE;
 923
 924         /* Build decoder -> filter -> overlaying chain */
 925         if( transcode_spu_new( p_stream, id ) )
 926         {
 927             msg_Err( p_stream, "cannot create subtitles chain" );
 928             goto error;
 929         }
 930     }
 931     else
 932     {
 933         msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
 934                  (char*)&p_fmt->i_codec );
 935         id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
 936         id->b_transcode = VLC_FALSE;
 937
 938         if( !id->id ) goto error;
 939     }
 940
 941     if( p_sys->b_sout_osd )
 942     {
 943         /* Create a fake OSD menu elementary stream */
 944         if( !p_sys->b_es_osd && (p_sys->i_osdcodec != 0 || p_sys->psz_osdenc) )
 945         {
 946             if( transcode_osd_new( p_stream, p_sys->id_osd ) )
 947             {
 948                 msg_Err( p_stream, "cannot create osd chain" );
 949                 goto error;
 950             }
 951             p_sys->b_es_osd = VLC_TRUE;
 952         }
 953     }
 954     return id;
 955
 956  error:
 957     if( id->p_decoder )
 958     {
 959         vlc_object_detach( id->p_decoder );
 960         vlc_object_destroy( id->p_decoder );
 961     }
 962
 963     if( id->p_encoder )
 964     {
 965         vlc_object_detach( id->p_encoder );
 966         es_format_Clean( &id->p_encoder->fmt_out );
 967         vlc_object_destroy( id->p_encoder );
 968     }
 969
 970     free( id );
 971     return NULL;
 972 }
 973
 974 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
 975 {
 976     sout_stream_sys_t *p_sys = p_stream->p_sys;
 977
 978     if( p_sys->b_es_osd )
 979         transcode_osd_close( p_stream, p_sys->id_osd );
 980
 981     if( id->b_transcode )
 982     {
 983         switch( id->p_decoder->fmt_in.i_cat )
 984         {
 985         case AUDIO_ES:
 986             transcode_audio_close( p_stream, id );
 987             break;
 988         case VIDEO_ES:
 989             transcode_video_close( p_stream, id );
 990             break;
 991         case SPU_ES:
 992             transcode_spu_close( p_stream, id );
 993             break;
 994         }
 995     }
 996
 997     if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
 998
 999     if( id->p_decoder )
1000     {
1001         vlc_object_detach( id->p_decoder );
1002         vlc_object_destroy( id->p_decoder );
1003     }
1004
1005     if( id->p_encoder )
1006     {
1007         vlc_object_detach( id->p_encoder );
1008         es_format_Clean( &id->p_encoder->fmt_out );
1009         vlc_object_destroy( id->p_encoder );
1010     }
1011
1012     free( id );
1013
1014     return VLC_SUCCESS;
1015 }
1016
1017 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1018                  block_t *p_buffer )
1019 {
1020     sout_stream_sys_t *p_sys = p_stream->p_sys;
1021     block_t *p_out = NULL;
1022
1023     if( !id->b_transcode && id->id )
1024     {
1025         /* Transcode OSD menu pictures. */
1026         if( p_sys->b_es_osd )
1027         {
1028             transcode_osd_process( p_stream, id, p_buffer, &p_out );
1029         }
1030         return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
1031     }
1032     else if( !id->b_transcode )
1033     {
1034         block_Release( p_buffer );
1035         return VLC_EGENERIC;
1036     }
1037
1038     switch( id->p_decoder->fmt_in.i_cat )
1039     {
1040     case AUDIO_ES:
1041         transcode_audio_process( p_stream, id, p_buffer, &p_out );
1042         break;
1043
1044     case VIDEO_ES:
1045         if( transcode_video_process( p_stream, id, p_buffer, &p_out )
1046             != VLC_SUCCESS )
1047         {
1048             return VLC_EGENERIC;
1049         }
1050         break;
1051
1052     case SPU_ES:
1053         if( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
1054             VLC_SUCCESS )
1055         {
1056             return VLC_EGENERIC;
1057         }
1058         break;
1059
1060     default:
1061         p_out = NULL;
1062         block_Release( p_buffer );
1063         break;
1064     }
1065
1066     if( p_out ) return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_out );
1067     return VLC_SUCCESS;
1068 }
1069
1070 /****************************************************************************
1071  * decoder reencoder part
1072  ****************************************************************************/
1073 int audio_BitsPerSample( vlc_fourcc_t i_format )
1074 {
1075     switch( i_format )
1076     {
1077     case VLC_FOURCC('u','8',' ',' '):
1078     case VLC_FOURCC('s','8',' ',' '):
1079         return 8;
1080
1081     case VLC_FOURCC('u','1','6','l'):
1082     case VLC_FOURCC('s','1','6','l'):
1083     case VLC_FOURCC('u','1','6','b'):
1084     case VLC_FOURCC('s','1','6','b'):
1085         return 16;
1086
1087     case VLC_FOURCC('u','2','4','l'):
1088     case VLC_FOURCC('s','2','4','l'):
1089     case VLC_FOURCC('u','2','4','b'):
1090     case VLC_FOURCC('s','2','4','b'):
1091         return 24;
1092
1093     case VLC_FOURCC('u','3','2','l'):
1094     case VLC_FOURCC('s','3','2','l'):
1095     case VLC_FOURCC('u','3','2','b'):
1096     case VLC_FOURCC('s','3','2','b'):
1097     case VLC_FOURCC('f','l','3','2'):
1098     case VLC_FOURCC('f','i','3','2'):
1099         return 32;
1100
1101     case VLC_FOURCC('f','l','6','4'):
1102         return 64;
1103     }
1104
1105     return 0;
1106 }
1107
1108 static filter_t *transcode_audio_filter_new( sout_stream_t *p_stream,
1109                                              sout_stream_id_t *id,
1110                                              es_format_t *p_fmt_in,
1111                                              es_format_t *p_fmt_out )
1112 {
1113     filter_t *p_filter = vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1114
1115     vlc_object_attach( p_filter, p_stream );
1116     p_filter->pf_audio_buffer_new = (block_t* (*) (filter_t*, int))__block_New;
1117
1118     p_filter->fmt_in = *p_fmt_in;
1119     p_filter->fmt_out = *p_fmt_out;
1120
1121     p_filter->p_module = module_Need( p_filter, "audio filter2", 0, 0 );
1122     if( p_filter->p_module )
1123     {
1124         p_filter->fmt_out.audio.i_bitspersample =
1125             audio_BitsPerSample( p_filter->fmt_out.i_codec );
1126         *p_fmt_in = p_filter->fmt_out;
1127     }
1128     else
1129     {
1130         vlc_object_detach( p_filter );
1131         vlc_object_destroy( p_filter );
1132         p_filter = 0;
1133     }
1134
1135     return p_filter;
1136 }
1137
1138 static int transcode_audio_new( sout_stream_t *p_stream,
1139                                 sout_stream_id_t *id )
1140 {
1141     sout_stream_sys_t *p_sys = p_stream->p_sys;
1142     es_format_t fmt_last;
1143     int i_pass = 6;
1144
1145     /*
1146      * Open decoder
1147      */
1148
1149     /* Initialization of decoder structures */
1150     id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1151     id->p_decoder->fmt_out.i_extra = 0;
1152     id->p_decoder->fmt_out.p_extra = 0;
1153     id->p_decoder->pf_decode_audio = 0;
1154     id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
1155     id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
1156     /* id->p_decoder->p_cfg = p_sys->p_audio_cfg; */
1157
1158     id->p_decoder->p_module =
1159         module_Need( id->p_decoder, "decoder", "$codec", 0 );
1160
1161     if( !id->p_decoder->p_module )
1162     {
1163         msg_Err( p_stream, "cannot find decoder" );
1164         return VLC_EGENERIC;
1165     }
1166     id->p_decoder->fmt_out.audio.i_bitspersample =
1167         audio_BitsPerSample( id->p_decoder->fmt_out.i_codec );
1168     fmt_last = id->p_decoder->fmt_out;
1169     /* FIX decoders so we don't have to do this */
1170     fmt_last.audio.i_rate = id->p_decoder->fmt_in.audio.i_rate;
1171
1172     /*
1173      * Open encoder
1174      */
1175
1176     /* Initialization of encoder format structures */
1177     es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1178                     id->p_decoder->fmt_out.i_codec );
1179     id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
1180
1181     /* Initialization of encoder format structures */
1182     es_format_Init( &id->p_encoder->fmt_in, AUDIO_ES, AOUT_FMT_S16_NE );
1183     id->p_encoder->fmt_in.audio.i_format = AOUT_FMT_S16_NE;
1184     id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
1185     id->p_encoder->fmt_in.audio.i_physical_channels =
1186         id->p_encoder->fmt_out.audio.i_physical_channels;
1187     id->p_encoder->fmt_in.audio.i_original_channels =
1188         id->p_encoder->fmt_out.audio.i_original_channels;
1189     id->p_encoder->fmt_in.audio.i_channels =
1190         id->p_encoder->fmt_out.audio.i_channels;
1191     id->p_encoder->fmt_in.audio.i_bitspersample =
1192         audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1193
1194     id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
1195
1196     id->p_encoder->p_module =
1197         module_Need( id->p_encoder, "encoder", p_sys->psz_aenc, VLC_TRUE );
1198     if( !id->p_encoder->p_module )
1199     {
1200         msg_Err( p_stream, "cannot find encoder" );
1201         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1202         id->p_decoder->p_module = 0;
1203         return VLC_EGENERIC;
1204     }
1205     id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
1206     id->p_encoder->fmt_in.audio.i_bitspersample =
1207         audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1208
1209     /* Load conversion filters */
1210     if( fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels ||
1211         fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate )
1212     {
1213         /* We'll have to go through fl32 first */
1214         es_format_t fmt_out = id->p_encoder->fmt_in;
1215         fmt_out.i_codec = fmt_out.audio.i_format = VLC_FOURCC('f','l','3','2');
1216
1217         id->pp_filter[id->i_filter] =
1218             transcode_audio_filter_new( p_stream, id, &fmt_last, &fmt_out );
1219
1220         if( id->pp_filter[id->i_filter] ) id->i_filter++;
1221     }
1222
1223     while( i_pass-- )
1224     {
1225         if( fmt_last.audio.i_channels !=
1226             id->p_encoder->fmt_in.audio.i_channels ||
1227             fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate ||
1228             fmt_last.i_codec != id->p_encoder->fmt_in.i_codec )
1229         {
1230             id->pp_filter[id->i_filter] =
1231                 transcode_audio_filter_new( p_stream, id, &fmt_last,
1232                                             &id->p_encoder->fmt_in );
1233
1234             if( id->pp_filter[id->i_filter] ) id->i_filter++;
1235             else break;
1236         }
1237     }
1238
1239     /* Final checks to see if conversions were successful */
1240     if( fmt_last.i_codec != id->p_encoder->fmt_in.i_codec )
1241     {
1242         msg_Err( p_stream, "no audio filter found (%4.4s->%4.4s)",
1243                  (char *)&fmt_last.i_codec,
1244                  (char *)&id->p_encoder->fmt_in.i_codec );
1245         transcode_audio_close( p_stream, id );
1246         return VLC_EGENERIC;
1247     }
1248
1249     if( fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels )
1250     {
1251         msg_Err( p_stream, "no audio filter found for mixing from"
1252                  " %i to %i channels", fmt_last.audio.i_channels,
1253                  id->p_encoder->fmt_in.audio.i_channels );
1254 #if 0
1255         /* FIXME : this might work, but only if the encoder is restarted */
1256         id->p_encoder->fmt_in.audio.i_channels = fmt_last.audio.i_channels;
1257         id->p_encoder->fmt_out.audio.i_channels = fmt_last.audio.i_channels;
1258
1259         id->p_encoder->fmt_in.audio.i_physical_channels =
1260             id->p_encoder->fmt_in.audio.i_original_channels =
1261                 fmt_last.audio.i_physical_channels;
1262         id->p_encoder->fmt_out.audio.i_physical_channels =
1263             id->p_encoder->fmt_out.audio.i_original_channels =
1264                 fmt_last.audio.i_physical_channels;
1265 #else
1266         transcode_audio_close( p_stream, id );
1267         return VLC_EGENERIC;
1268 #endif
1269     }
1270
1271     if( fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate )
1272     {
1273         msg_Err( p_stream, "no audio filter found for resampling from"
1274                  " %iHz to %iHz", fmt_last.audio.i_rate,
1275                  id->p_encoder->fmt_in.audio.i_rate );
1276 #if 0
1277         /* FIXME : this might work, but only if the encoder is restarted */
1278         id->p_encoder->fmt_in.audio.i_rate = fmt_last.audio.i_rate;
1279         id->p_encoder->fmt_out.audio.i_rate = fmt_last.audio.i_rate;
1280 #else
1281         transcode_audio_close( p_stream, id );
1282         return VLC_EGENERIC;
1283 #endif
1284     }
1285
1286     /* FIXME: Hack for mp3 transcoding support */
1287     if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC( 'm','p','3',' ' ) )
1288         id->p_encoder->fmt_out.i_codec = VLC_FOURCC( 'm','p','g','a' );
1289
1290     return VLC_SUCCESS;
1291 }
1292
1293 static void transcode_audio_close( sout_stream_t *p_stream,
1294                                    sout_stream_id_t *id )
1295 {
1296     int i;
1297
1298     /* Close decoder */
1299     if( id->p_decoder->p_module )
1300         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1301     id->p_decoder->p_module = 0;
1302
1303     /* Close encoder */
1304     if( id->p_encoder->p_module )
1305         module_Unneed( id->p_encoder, id->p_encoder->p_module );
1306     id->p_encoder->p_module = 0;
1307
1308     /* Close filters */
1309     for( i = 0; i < id->i_filter; i++ )
1310     {
1311         vlc_object_detach( id->pp_filter[i] );
1312         if( id->pp_filter[i]->p_module )
1313             module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1314         vlc_object_destroy( id->pp_filter[i] );
1315     }
1316 }
1317
1318 static int transcode_audio_process( sout_stream_t *p_stream,
1319                                     sout_stream_id_t *id,
1320                                     block_t *in, block_t **out )
1321 {
1322     sout_stream_sys_t *p_sys = p_stream->p_sys;
1323     aout_buffer_t *p_audio_buf;
1324     block_t *p_block, *p_audio_block;
1325     int i;
1326     *out = NULL;
1327
1328     while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
1329                                                           &in )) )
1330     {
1331         stats_UpdateInteger( p_stream->p_parent->p_parent, STATS_DECODED_AUDIO,
1332                              1, NULL );
1333         if( p_sys->b_master_sync )
1334         {
1335             mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1336             if ( p_audio_buf->start_date - i_dts > MASTER_SYNC_MAX_DRIFT
1337                   || p_audio_buf->start_date - i_dts < -MASTER_SYNC_MAX_DRIFT )
1338             {
1339                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1340                 date_Set( &id->interpolated_pts, p_audio_buf->start_date );
1341                 i_dts = p_audio_buf->start_date + 1;
1342             }
1343             p_sys->i_master_drift = p_audio_buf->start_date - i_dts;
1344             date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1345             p_audio_buf->start_date -= p_sys->i_master_drift;
1346             p_audio_buf->end_date -= p_sys->i_master_drift;
1347         }
1348
1349         p_audio_block = p_audio_buf->p_sys;
1350         p_audio_block->i_buffer = p_audio_buf->i_nb_bytes;
1351         p_audio_block->i_dts = p_audio_block->i_pts =
1352             p_audio_buf->start_date;
1353         p_audio_block->i_length = p_audio_buf->end_date -
1354             p_audio_buf->start_date;
1355         p_audio_block->i_samples = p_audio_buf->i_nb_samples;
1356
1357         /* Run filter chain */
1358         for( i = 0; i < id->i_filter; i++ )
1359         {
1360             p_audio_block =
1361                 id->pp_filter[i]->pf_audio_filter( id->pp_filter[i],
1362                                                    p_audio_block );
1363         }
1364
1365         p_audio_buf->p_buffer = p_audio_block->p_buffer;
1366         p_audio_buf->i_nb_bytes = p_audio_block->i_buffer;
1367         p_audio_buf->i_nb_samples = p_audio_block->i_samples;
1368         p_audio_buf->start_date = p_audio_block->i_dts;
1369         p_audio_buf->end_date = p_audio_block->i_dts + p_audio_block->i_length;
1370
1371         p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1372         block_ChainAppend( out, p_block );
1373         block_Release( p_audio_block );
1374         free( p_audio_buf );
1375     }
1376
1377     return VLC_SUCCESS;
1378 }
1379
1380 static void audio_release_buffer( aout_buffer_t *p_buffer )
1381 {
1382     if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1383     if( p_buffer ) free( p_buffer );
1384 }
1385
1386 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1387 {
1388     aout_buffer_t *p_buffer;
1389     block_t *p_block;
1390     int i_size;
1391
1392     if( p_dec->fmt_out.audio.i_bitspersample )
1393     {
1394         i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1395             p_dec->fmt_out.audio.i_channels;
1396     }
1397     else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1398              p_dec->fmt_out.audio.i_frame_length )
1399     {
1400         i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1401             p_dec->fmt_out.audio.i_frame_length;
1402     }
1403     else
1404     {
1405         i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1406     }
1407
1408     p_buffer = malloc( sizeof(aout_buffer_t) );
1409     p_buffer->pf_release = audio_release_buffer;
1410     p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1411
1412     p_buffer->p_buffer = p_block->p_buffer;
1413     p_buffer->i_size = p_buffer->i_nb_bytes = p_block->i_buffer;
1414     p_buffer->i_nb_samples = i_samples;
1415     p_block->i_samples = i_samples;
1416
1417     return p_buffer;
1418 }
1419
1420 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1421 {
1422     if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1423     if( p_buffer ) free( p_buffer );
1424 }
1425
1426 /*
1427  * video
1428  */
1429 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1430 {
1431     sout_stream_sys_t *p_sys = p_stream->p_sys;
1432     int i;
1433
1434     /*
1435      * Open decoder
1436      */
1437
1438     /* Initialization of decoder structures */
1439     id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1440     id->p_decoder->fmt_out.i_extra = 0;
1441     id->p_decoder->fmt_out.p_extra = 0;
1442     id->p_decoder->pf_decode_video = 0;
1443     id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1444     id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1445     id->p_decoder->pf_picture_link    = video_link_picture_decoder;
1446     id->p_decoder->pf_picture_unlink  = video_unlink_picture_decoder;
1447     id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1448     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1449         id->p_decoder->p_owner->pp_pics[i] = 0;
1450     id->p_decoder->p_owner->p_sys = p_sys;
1451     /* id->p_decoder->p_cfg = p_sys->p_video_cfg; */
1452
1453     id->p_decoder->p_module =
1454         module_Need( id->p_decoder, "decoder", "$codec", 0 );
1455
1456     if( !id->p_decoder->p_module )
1457     {
1458         msg_Err( p_stream, "cannot find decoder" );
1459         return VLC_EGENERIC;
1460     }
1461
1462     /*
1463      * Open encoder.
1464      * Because some info about the decoded input will only be available
1465      * once the first frame is decoded, we actually only test the availability
1466      * of the encoder here.
1467      */
1468
1469     /* Initialization of encoder format structures */
1470     es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1471                     id->p_decoder->fmt_out.i_codec );
1472     id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1473
1474     /* The dimensions will be set properly later on.
1475      * Just put sensible values so we can test an encoder is available. */
1476     id->p_encoder->fmt_in.video.i_width =
1477         id->p_encoder->fmt_out.video.i_width ?
1478         id->p_encoder->fmt_out.video.i_width :
1479         id->p_decoder->fmt_in.video.i_width ?
1480         id->p_decoder->fmt_in.video.i_width : 16;
1481     id->p_encoder->fmt_in.video.i_height =
1482         id->p_encoder->fmt_out.video.i_height ?
1483         id->p_encoder->fmt_out.video.i_height :
1484         id->p_decoder->fmt_in.video.i_height ?
1485         id->p_decoder->fmt_in.video.i_height : 16;
1486     id->p_encoder->fmt_in.video.i_frame_rate = 25;
1487     id->p_encoder->fmt_in.video.i_frame_rate_base = 1;
1488
1489     id->p_encoder->i_threads = p_sys->i_threads;
1490     id->p_encoder->p_cfg = p_sys->p_video_cfg;
1491
1492     id->p_encoder->p_module =
1493         module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1494     if( !id->p_encoder->p_module )
1495     {
1496         msg_Err( p_stream, "cannot find encoder" );
1497         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1498         id->p_decoder->p_module = 0;
1499         return VLC_EGENERIC;
1500     }
1501
1502     /* Close the encoder.
1503      * We'll open it only when we have the first frame. */
1504     module_Unneed( id->p_encoder, id->p_encoder->p_module );
1505     if( id->p_encoder->fmt_out.p_extra )
1506         free( id->p_encoder->fmt_out.p_extra );
1507     id->p_encoder->p_module = NULL;
1508
1509     if( p_sys->i_threads >= 1 )
1510     {
1511         int i_priority = p_sys->b_high_priority ? VLC_THREAD_PRIORITY_OUTPUT :
1512                            VLC_THREAD_PRIORITY_VIDEO;
1513         p_sys->id_video = id;
1514         vlc_mutex_init( p_stream, &p_sys->lock_out );
1515         vlc_cond_init( p_stream, &p_sys->cond );
1516         memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1517         p_sys->i_first_pic = 0;
1518         p_sys->i_last_pic = 0;
1519         p_sys->p_buffers = NULL;
1520         p_sys->b_die = p_sys->b_error = 0;
1521         if( vlc_thread_create( p_sys, "encoder", EncoderThread, i_priority,
1522                                VLC_FALSE ) )
1523         {
1524             msg_Err( p_stream, "cannot spawn encoder thread" );
1525             module_Unneed( id->p_decoder, id->p_decoder->p_module );
1526             id->p_decoder->p_module = 0;
1527             return VLC_EGENERIC;
1528         }
1529     }
1530
1531     return VLC_SUCCESS;
1532 }
1533
1534 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1535                                          sout_stream_id_t *id )
1536 {
1537     sout_stream_sys_t *p_sys = p_stream->p_sys;
1538
1539     /* Hack because of the copy packetizer which can fail to detect the
1540      * proper size (which forces us to wait until the 1st frame
1541      * is decoded) */
1542     int i_width = id->p_decoder->fmt_out.video.i_width -
1543         p_sys->i_crop_left - p_sys->i_crop_right;
1544     int i_height = id->p_decoder->fmt_out.video.i_height -
1545         p_sys->i_crop_top - p_sys->i_crop_bottom;
1546
1547     if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1548         id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1549     {
1550         /* Apply the scaling */
1551         id->p_encoder->fmt_out.video.i_width = i_width * p_sys->f_scale;
1552         id->p_encoder->fmt_out.video.i_height = i_height * p_sys->f_scale;
1553     }
1554     else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1555              id->p_encoder->fmt_out.video.i_height <= 0 )
1556     {
1557         id->p_encoder->fmt_out.video.i_height =
1558             id->p_encoder->fmt_out.video.i_width / (double)i_width * i_height;
1559     }
1560     else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1561              id->p_encoder->fmt_out.video.i_height > 0 )
1562     {
1563         id->p_encoder->fmt_out.video.i_width =
1564             id->p_encoder->fmt_out.video.i_height / (double)i_height * i_width;
1565     }
1566
1567     if( p_sys->i_maxwidth
1568          && id->p_encoder->fmt_out.video.i_width > p_sys->i_maxwidth )
1569         id->p_encoder->fmt_out.video.i_width = p_sys->i_maxwidth;
1570     if( p_sys->i_maxheight
1571          && id->p_encoder->fmt_out.video.i_height > p_sys->i_maxheight )
1572         id->p_encoder->fmt_out.video.i_height = p_sys->i_maxheight;
1573
1574     /* Make sure the size is at least a multiple of 2 */
1575     id->p_encoder->fmt_out.video.i_width =
1576         (id->p_encoder->fmt_out.video.i_width + 1) >> 1 << 1;
1577     id->p_encoder->fmt_out.video.i_height =
1578         (id->p_encoder->fmt_out.video.i_height + 1) >> 1 << 1;
1579
1580     id->p_encoder->fmt_in.video.i_width =
1581         id->p_encoder->fmt_out.video.i_width;
1582     id->p_encoder->fmt_in.video.i_height =
1583         id->p_encoder->fmt_out.video.i_height;
1584
1585     if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1586         !id->p_encoder->fmt_out.video.i_frame_rate_base )
1587     {
1588         if( id->p_decoder->fmt_out.video.i_frame_rate &&
1589             id->p_decoder->fmt_out.video.i_frame_rate_base )
1590         {
1591             id->p_encoder->fmt_out.video.i_frame_rate =
1592                 id->p_decoder->fmt_out.video.i_frame_rate;
1593             id->p_encoder->fmt_out.video.i_frame_rate_base =
1594                 id->p_decoder->fmt_out.video.i_frame_rate_base;
1595         }
1596         else
1597         {
1598             /* Pick a sensible default value */
1599             id->p_encoder->fmt_out.video.i_frame_rate = 25;
1600             id->p_encoder->fmt_out.video.i_frame_rate_base = 1;
1601         }
1602     }
1603
1604     id->p_encoder->fmt_in.video.i_frame_rate =
1605         id->p_encoder->fmt_out.video.i_frame_rate;
1606     id->p_encoder->fmt_in.video.i_frame_rate_base =
1607         id->p_encoder->fmt_out.video.i_frame_rate_base;
1608
1609     date_Init( &id->interpolated_pts,
1610                id->p_encoder->fmt_out.video.i_frame_rate,
1611                id->p_encoder->fmt_out.video.i_frame_rate_base );
1612
1613     /* Check whether a particular aspect ratio was requested */
1614     if( !id->p_encoder->fmt_out.video.i_aspect )
1615     {
1616         id->p_encoder->fmt_out.video.i_aspect =
1617             id->p_decoder->fmt_out.video.i_aspect;
1618     }
1619     id->p_encoder->fmt_in.video.i_aspect =
1620         id->p_encoder->fmt_out.video.i_aspect;
1621
1622     id->p_encoder->p_module =
1623         module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1624     if( !id->p_encoder->p_module )
1625     {
1626         msg_Err( p_stream, "cannot find encoder" );
1627         return VLC_EGENERIC;
1628     }
1629
1630     id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1631
1632     /* Hack for mp2v/mp1v transcoding support */
1633     if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','1','v') ||
1634         id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','2','v') )
1635     {
1636         id->p_encoder->fmt_out.i_codec = VLC_FOURCC('m','p','g','v');
1637     }
1638
1639     id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out,
1640                                              &id->p_encoder->fmt_out );
1641     if( !id->id )
1642     {
1643         msg_Err( p_stream, "cannot add this stream" );
1644         return VLC_EGENERIC;
1645     }
1646
1647     return VLC_SUCCESS;
1648 }
1649
1650 static void transcode_video_close( sout_stream_t *p_stream,
1651                                    sout_stream_id_t *id )
1652 {
1653     int i, j;
1654
1655     if( p_stream->p_sys->i_threads >= 1 )
1656     {
1657         vlc_mutex_lock( &p_stream->p_sys->lock_out );
1658         p_stream->p_sys->b_die = 1;
1659         vlc_cond_signal( &p_stream->p_sys->cond );
1660         vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1661         vlc_thread_join( p_stream->p_sys );
1662         vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1663         vlc_cond_destroy( &p_stream->p_sys->cond );
1664     }
1665
1666     /* Close decoder */
1667     if( id->p_decoder->p_module )
1668         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1669
1670     if( id->p_decoder->p_owner )
1671     {
1672         /* Clean-up pictures ring buffer */
1673         for( i = 0; i < PICTURE_RING_SIZE; i++ )
1674         {
1675             if( id->p_decoder->p_owner->pp_pics[i] )
1676                 video_del_buffer( VLC_OBJECT(id->p_decoder),
1677                                   id->p_decoder->p_owner->pp_pics[i] );
1678         }
1679         free( id->p_decoder->p_owner );
1680     }
1681
1682     /* Close encoder */
1683     if( id->p_encoder->p_module )
1684         module_Unneed( id->p_encoder, id->p_encoder->p_module );
1685
1686     /* Close filters */
1687     for( i = 0; i < id->i_filter; i++ )
1688     {
1689         vlc_object_detach( id->pp_filter[i] );
1690         if( id->pp_filter[i]->p_module )
1691             module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1692
1693         /* Clean-up pictures ring buffer */
1694         for( j = 0; j < PICTURE_RING_SIZE; j++ )
1695         {
1696             if( id->pp_filter[i]->p_owner->pp_pics[j] )
1697                 video_del_buffer( VLC_OBJECT(id->pp_filter[i]),
1698                                   id->pp_filter[i]->p_owner->pp_pics[j] );
1699         }
1700         free( id->pp_filter[i]->p_owner );
1701
1702         vlc_object_destroy( id->pp_filter[i] );
1703     }
1704     for( i = 0; i < id->i_vfilter; i++ )
1705     {
1706         vlc_object_detach( id->pp_vfilter[i] );
1707         if( id->pp_vfilter[i]->p_module )
1708             module_Unneed( id->pp_vfilter[i], id->pp_vfilter[i]->p_module );
1709
1710         /* Clean-up pictures ring buffer */
1711         for( j = 0; j < PICTURE_RING_SIZE; j++ )
1712         {
1713             if( id->pp_vfilter[i]->p_owner->pp_pics[j] )
1714                 video_del_buffer( VLC_OBJECT(id->pp_vfilter[i]),
1715                                   id->pp_vfilter[i]->p_owner->pp_pics[j] );
1716         }
1717         free( id->pp_vfilter[i]->p_owner );
1718
1719         vlc_object_destroy( id->pp_vfilter[i] );
1720     }
1721 }
1722
1723 static int transcode_video_process( sout_stream_t *p_stream,
1724                                     sout_stream_id_t *id,
1725                                     block_t *in, block_t **out )
1726 {
1727     sout_stream_sys_t *p_sys = p_stream->p_sys;
1728     int i_duplicate = 1, i;
1729     picture_t *p_pic, *p_pic2 = NULL;
1730     *out = NULL;
1731
1732     while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1733     {
1734         subpicture_t *p_subpic = 0;
1735         stats_UpdateInteger( p_stream->p_parent->p_parent, STATS_DECODED_VIDEO,
1736                               1, NULL );
1737
1738         if( p_stream->p_sout->i_out_pace_nocontrol && p_sys->b_hurry_up )
1739         {
1740             mtime_t current_date = mdate();
1741             if( current_date + 50000 > p_pic->date )
1742             {
1743                 msg_Dbg( p_stream, "late picture skipped ("I64Fd")",
1744                          current_date + 50000 - p_pic->date );
1745                 p_pic->pf_release( p_pic );
1746                 continue;
1747             }
1748         }
1749
1750         if( p_sys->b_master_sync )
1751         {
1752             mtime_t i_video_drift;
1753             mtime_t i_master_drift = p_sys->i_master_drift;
1754             mtime_t i_pts;
1755
1756             i_pts = date_Get( &id->interpolated_pts ) + 1;
1757             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
1758                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
1759             {
1760                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1761                 date_Set( &id->interpolated_pts, p_pic->date );
1762                 i_pts = p_pic->date + 1;
1763             }
1764             i_video_drift = p_pic->date - i_pts;
1765             i_duplicate = 1;
1766
1767             /* Set the pts of the frame being encoded */
1768             p_pic->date = i_pts;
1769
1770             if( i_video_drift < i_master_drift - 50000 )
1771             {
1772 #if 0
1773                 msg_Dbg( p_stream, "dropping frame (%i)",
1774                          (int)(i_video_drift - i_master_drift) );
1775 #endif
1776                 p_pic->pf_release( p_pic );
1777                 continue;
1778             }
1779             else if( i_video_drift > i_master_drift + 50000 )
1780             {
1781 #if 0
1782                 msg_Dbg( p_stream, "adding frame (%i)",
1783                          (int)(i_video_drift - i_master_drift) );
1784 #endif
1785                 i_duplicate = 2;
1786             }
1787         }
1788
1789         if( !id->p_encoder->p_module )
1790         {
1791             if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1792             {
1793                 p_pic->pf_release( p_pic );
1794                 transcode_video_close( p_stream, id );
1795                 id->b_transcode = VLC_FALSE;
1796                 return VLC_EGENERIC;
1797             }
1798
1799             /* Deinterlace */
1800             if( p_stream->p_sys->b_deinterlace )
1801             {
1802                 id->pp_filter[id->i_filter] =
1803                     vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1804                 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1805
1806                 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1807                     video_new_buffer_filter;
1808                 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1809                     video_del_buffer_filter;
1810
1811                 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1812                 id->pp_filter[id->i_filter]->fmt_out = id->p_decoder->fmt_out;
1813                 id->pp_filter[id->i_filter]->p_cfg = p_sys->p_deinterlace_cfg;
1814                 id->pp_filter[id->i_filter]->p_module =
1815                     module_Need( id->pp_filter[id->i_filter],
1816                                  "video filter2", p_sys->psz_deinterlace, 0 );
1817                 if( id->pp_filter[id->i_filter]->p_module )
1818                 {
1819                     id->pp_filter[id->i_filter]->p_owner =
1820                         malloc( sizeof(filter_owner_sys_t) );
1821                     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1822                         id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1823                     id->pp_filter[id->i_filter]->p_owner->p_sys = p_sys;
1824
1825                     id->i_filter++;
1826                 }
1827                 else
1828                 {
1829                     msg_Dbg( p_stream, "no video filter found" );
1830                     vlc_object_detach( id->pp_filter[id->i_filter] );
1831                     vlc_object_destroy( id->pp_filter[id->i_filter] );
1832                 }
1833             }
1834
1835             /* Check if we need a filter for chroma conversion or resizing */
1836             if( id->p_decoder->fmt_out.video.i_chroma !=
1837                 id->p_encoder->fmt_in.video.i_chroma ||
1838                 id->p_decoder->fmt_out.video.i_width !=
1839                 id->p_encoder->fmt_out.video.i_width ||
1840                 id->p_decoder->fmt_out.video.i_height !=
1841                 id->p_encoder->fmt_out.video.i_height ||
1842                 p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
1843                 p_sys->i_crop_left > 0 || p_sys->i_crop_right > 0 )
1844             {
1845                 id->pp_filter[id->i_filter] =
1846                     vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1847                 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1848
1849                 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1850                     video_new_buffer_filter;
1851                 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1852                     video_del_buffer_filter;
1853
1854                 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1855                 id->pp_filter[id->i_filter]->fmt_out = id->p_encoder->fmt_in;
1856                 id->pp_filter[id->i_filter]->p_cfg = NULL;
1857                 id->pp_filter[id->i_filter]->p_module =
1858                     module_Need( id->pp_filter[id->i_filter],
1859                                  "video filter2", 0, 0 );
1860                 if( id->pp_filter[id->i_filter]->p_module )
1861                 {
1862                     id->pp_filter[id->i_filter]->p_owner =
1863                         malloc( sizeof(filter_owner_sys_t) );
1864                     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1865                         id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1866                     id->pp_filter[id->i_filter]->p_owner->p_sys = p_sys;
1867
1868                     id->i_filter++;
1869                 }
1870                 else
1871                 {
1872                     msg_Dbg( p_stream, "no video filter found" );
1873                     vlc_object_detach( id->pp_filter[id->i_filter] );
1874                     vlc_object_destroy( id->pp_filter[id->i_filter] );
1875
1876                     p_pic->pf_release( p_pic );
1877                     transcode_video_close( p_stream, id );
1878                     id->b_transcode = VLC_FALSE;
1879                     return VLC_EGENERIC;
1880                 }
1881             }
1882
1883             for( i = 0; i < p_sys->i_vfilters; i++ )
1884             {
1885                 id->pp_vfilter[id->i_vfilter] =
1886                     vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1887                 vlc_object_attach( id->pp_vfilter[id->i_vfilter], p_stream );
1888
1889                 id->pp_vfilter[id->i_vfilter]->pf_vout_buffer_new =
1890                     video_new_buffer_filter;
1891                 id->pp_vfilter[id->i_vfilter]->pf_vout_buffer_del =
1892                     video_del_buffer_filter;
1893
1894                 id->pp_vfilter[id->i_vfilter]->fmt_in = id->p_encoder->fmt_in;
1895                 id->pp_vfilter[id->i_vfilter]->fmt_out = id->p_encoder->fmt_in;
1896                 id->pp_vfilter[id->i_vfilter]->p_cfg = p_sys->p_vfilters_cfg[i];
1897                 id->pp_vfilter[id->i_vfilter]->p_module =
1898                     module_Need( id->pp_vfilter[id->i_vfilter],
1899                           "video filter2", p_sys->psz_vfilters[i], 0 );
1900                 if( id->pp_vfilter[id->i_vfilter]->p_module )
1901                 {
1902                     id->pp_vfilter[id->i_vfilter]->p_owner =
1903                         malloc( sizeof(filter_owner_sys_t) );
1904                     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1905                         id->pp_vfilter[id->i_vfilter]->p_owner->pp_pics[i] = 0;
1906                     id->pp_vfilter[id->i_vfilter]->p_owner->p_sys = p_sys;
1907
1908                     id->i_vfilter++;
1909                 }
1910                 else
1911                 {
1912                     msg_Dbg( p_stream, "no video filter found" );
1913                     vlc_object_detach( id->pp_vfilter[id->i_vfilter] );
1914                     vlc_object_destroy( id->pp_vfilter[id->i_vfilter] );
1915                 }
1916             }
1917         }
1918
1919         /* Run filter chain */
1920         for( i = 0; i < id->i_filter; i++ )
1921         {
1922             p_pic = id->pp_filter[i]->pf_video_filter(id->pp_filter[i], p_pic);
1923         }
1924
1925         /*
1926          * Encoding
1927          */
1928
1929         /* Check if we have a subpicture to overlay */
1930         if( p_sys->p_spu )
1931         {
1932             p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date );
1933             /* TODO: get another pic */
1934         }
1935
1936         /* Overlay subpicture */
1937         if( p_subpic )
1938         {
1939             int i_scale_width, i_scale_height;
1940             video_format_t *p_fmt;
1941
1942             i_scale_width = id->p_encoder->fmt_in.video.i_width * 1000 /
1943                 id->p_decoder->fmt_out.video.i_width;
1944             i_scale_height = id->p_encoder->fmt_in.video.i_height * 1000 /
1945                 id->p_decoder->fmt_out.video.i_height;
1946
1947             if( p_pic->i_refcount && !id->i_filter )
1948             {
1949                 /* We can't modify the picture, we need to duplicate it */
1950                 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1951                 if( p_tmp )
1952                 {
1953                     vout_CopyPicture( p_stream, p_tmp, p_pic );
1954                     p_pic->pf_release( p_pic );
1955                     p_pic = p_tmp;
1956                 }
1957             }
1958
1959             if( id->i_filter )
1960                 p_fmt = &id->pp_filter[id->i_filter -1]->fmt_out.video;
1961             else
1962                 p_fmt = &id->p_decoder->fmt_out.video;
1963
1964             /* FIXME (shouldn't have to be done here) */
1965             p_fmt->i_sar_num = p_fmt->i_aspect *
1966                 p_fmt->i_height / p_fmt->i_width;
1967             p_fmt->i_sar_den = VOUT_ASPECT_FACTOR;
1968
1969             spu_RenderSubpictures( p_sys->p_spu, p_fmt, p_pic, p_pic, p_subpic,
1970                                    i_scale_width, i_scale_height );
1971         }
1972
1973         /* Run vfilter chain */
1974         for( i = 0; i < id->i_vfilter; i++ )
1975         {
1976             p_pic = id->pp_vfilter[i]->pf_video_filter(id->pp_vfilter[i], p_pic);
1977         }
1978
1979         if( p_sys->i_threads == 0 )
1980         {
1981             block_t *p_block;
1982             p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1983             block_ChainAppend( out, p_block );
1984         }
1985
1986         if( p_sys->b_master_sync )
1987         {
1988             mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1989             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
1990                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
1991             {
1992                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1993                 date_Set( &id->interpolated_pts, p_pic->date );
1994                 i_pts = p_pic->date + 1;
1995             }
1996             date_Increment( &id->interpolated_pts, 1 );
1997         }
1998
1999         if( p_sys->b_master_sync && i_duplicate > 1 )
2000         {
2001             mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
2002             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
2003                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
2004             {
2005                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
2006                 date_Set( &id->interpolated_pts, p_pic->date );
2007                 i_pts = p_pic->date + 1;
2008             }
2009             date_Increment( &id->interpolated_pts, 1 );
2010
2011             if( p_sys->i_threads >= 1 )
2012             {
2013                 /* We can't modify the picture, we need to duplicate it */
2014                 p_pic2 = video_new_buffer_decoder( id->p_decoder );
2015                 if( p_pic2 != NULL )
2016                 {
2017                     vout_CopyPicture( p_stream, p_pic2, p_pic );
2018                     p_pic2->date = i_pts;
2019                 }
2020             }
2021             else
2022             {
2023                 block_t *p_block;
2024                 p_pic->date = i_pts;
2025                 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
2026                 block_ChainAppend( out, p_block );
2027             }
2028         }
2029
2030         if( p_sys->i_threads == 0 )
2031         {
2032             p_pic->pf_release( p_pic );
2033         }
2034         else
2035         {
2036             vlc_mutex_lock( &p_sys->lock_out );
2037             p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
2038             p_sys->i_last_pic %= PICTURE_RING_SIZE;
2039             *out = p_sys->p_buffers;
2040             p_sys->p_buffers = NULL;
2041             if( p_pic2 != NULL )
2042             {
2043                 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic2;
2044                 p_sys->i_last_pic %= PICTURE_RING_SIZE;
2045             }
2046             vlc_cond_signal( &p_sys->cond );
2047             vlc_mutex_unlock( &p_sys->lock_out );
2048         }
2049     }
2050
2051     return VLC_SUCCESS;
2052 }
2053
2054 static int EncoderThread( sout_stream_sys_t *p_sys )
2055 {
2056     sout_stream_id_t *id = p_sys->id_video;
2057     picture_t *p_pic;
2058
2059     while( !p_sys->b_die && !p_sys->b_error )
2060     {
2061         block_t *p_block;
2062
2063         vlc_mutex_lock( &p_sys->lock_out );
2064         while( p_sys->i_last_pic == p_sys->i_first_pic )
2065         {
2066             vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
2067             if( p_sys->b_die || p_sys->b_error ) break;
2068         }
2069         if( p_sys->b_die || p_sys->b_error )
2070         {
2071             vlc_mutex_unlock( &p_sys->lock_out );
2072             break;
2073         }
2074
2075         p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
2076         p_sys->i_first_pic %= PICTURE_RING_SIZE;
2077         vlc_mutex_unlock( &p_sys->lock_out );
2078
2079         p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
2080         vlc_mutex_lock( &p_sys->lock_out );
2081         block_ChainAppend( &p_sys->p_buffers, p_block );
2082
2083         vlc_mutex_unlock( &p_sys->lock_out );
2084
2085         p_pic->pf_release( p_pic );
2086     }
2087
2088     while( p_sys->i_last_pic != p_sys->i_first_pic )
2089     {
2090         p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
2091         p_sys->i_first_pic %= PICTURE_RING_SIZE;
2092
2093         p_pic->pf_release( p_pic );
2094     }
2095
2096     block_ChainRelease( p_sys->p_buffers );
2097
2098     return 0;
2099 }
2100
2101 struct picture_sys_t
2102 {
2103     vlc_object_t *p_owner;
2104 };
2105
2106 static void video_release_buffer( picture_t *p_pic )
2107 {
2108     if( p_pic && !p_pic->i_refcount && p_pic->pf_release && p_pic->p_sys )
2109     {
2110         video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
2111     }
2112     else if( p_pic && p_pic->i_refcount > 0 ) p_pic->i_refcount--;
2113 }
2114
2115 static picture_t *video_new_buffer( vlc_object_t *p_this, picture_t **pp_ring,
2116                                     sout_stream_sys_t *p_sys )
2117 {
2118     decoder_t *p_dec = (decoder_t *)p_this;
2119     picture_t *p_pic;
2120     int i;
2121
2122     /* Find an empty space in the picture ring buffer */
2123     for( i = 0; i < PICTURE_RING_SIZE; i++ )
2124     {
2125         if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
2126         {
2127             pp_ring[i]->i_status = RESERVED_PICTURE;
2128             return pp_ring[i];
2129         }
2130     }
2131     for( i = 0; i < PICTURE_RING_SIZE; i++ )
2132     {
2133         if( pp_ring[i] == 0 ) break;
2134     }
2135
2136     if( i == PICTURE_RING_SIZE && p_sys->i_threads >= 1 )
2137     {
2138         int i_first_pic = p_sys->i_first_pic;
2139
2140         if( p_sys->i_first_pic != p_sys->i_last_pic )
2141         {
2142             /* Encoder still has stuff to encode, wait to clear-up the list */
2143             while( p_sys->i_first_pic == i_first_pic )
2144                 msleep( 100000 );
2145         }
2146
2147         /* Find an empty space in the picture ring buffer */
2148         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2149         {
2150             if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
2151             {
2152                 pp_ring[i]->i_status = RESERVED_PICTURE;
2153                 return pp_ring[i];
2154             }
2155         }
2156         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2157         {
2158             if( pp_ring[i] == 0 ) break;
2159         }
2160     }
2161
2162     if( i == PICTURE_RING_SIZE )
2163     {
2164         msg_Err( p_this, "decoder/filter is leaking pictures, "
2165                  "resetting its ring buffer" );
2166
2167         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2168         {
2169             pp_ring[i]->pf_release( pp_ring[i] );
2170         }
2171
2172         i = 0;
2173     }
2174
2175     p_pic = malloc( sizeof(picture_t) );
2176     p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2177     vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
2178                           p_dec->fmt_out.video.i_chroma,
2179                           p_dec->fmt_out.video.i_width,
2180                           p_dec->fmt_out.video.i_height,
2181                           p_dec->fmt_out.video.i_aspect );
2182
2183     if( !p_pic->i_planes )
2184     {
2185         free( p_pic );
2186         return 0;
2187     }
2188
2189     p_pic->pf_release = video_release_buffer;
2190     p_pic->p_sys = malloc( sizeof(picture_sys_t) );
2191     p_pic->p_sys->p_owner = p_this;
2192     p_pic->i_status = RESERVED_PICTURE;
2193
2194     pp_ring[i] = p_pic;
2195
2196     return p_pic;
2197 }
2198
2199 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
2200 {
2201     return video_new_buffer( VLC_OBJECT(p_dec),
2202                              p_dec->p_owner->pp_pics, p_dec->p_owner->p_sys );
2203 }
2204
2205 static picture_t *video_new_buffer_filter( filter_t *p_filter )
2206 {
2207     return video_new_buffer( VLC_OBJECT(p_filter),
2208                              p_filter->p_owner->pp_pics,
2209                              p_filter->p_owner->p_sys );
2210 }
2211
2212 static void video_del_buffer( vlc_object_t *p_this, picture_t *p_pic )
2213 {
2214     if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
2215     if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
2216     if( p_pic ) free( p_pic );
2217 }
2218
2219 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
2220 {
2221     p_pic->i_refcount = 0;
2222     p_pic->i_status = DESTROYED_PICTURE;
2223 }
2224
2225 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
2226 {
2227     p_pic->i_refcount = 0;
2228     p_pic->i_status = DESTROYED_PICTURE;
2229 }
2230
2231 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
2232 {
2233     p_pic->i_refcount++;
2234 }
2235
2236 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
2237 {
2238     video_release_buffer( p_pic );
2239 }
2240
2241 /*
2242  * SPU
2243  */
2244 static subpicture_t *spu_new_buffer( decoder_t * );
2245 static void spu_del_buffer( decoder_t *, subpicture_t * );
2246
2247 static int transcode_spu_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     /*
2252      * Open decoder
2253      */
2254
2255     /* Initialization of decoder structures */
2256     id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
2257     id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
2258     id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
2259     /* id->p_decoder->p_cfg = p_sys->p_spu_cfg; */
2260
2261     id->p_decoder->p_module =
2262         module_Need( id->p_decoder, "decoder", "$codec", 0 );
2263
2264     if( !id->p_decoder->p_module )
2265     {
2266         msg_Err( p_stream, "cannot find decoder" );
2267         return VLC_EGENERIC;
2268     }
2269
2270     if( !p_sys->b_soverlay )
2271     {
2272         /*
2273          * Open encoder
2274          */
2275
2276         /* Initialization of encoder format structures */
2277         es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
2278                         id->p_decoder->fmt_in.i_codec );
2279
2280         id->p_encoder->p_cfg = p_sys->p_spu_cfg;
2281
2282         id->p_encoder->p_module =
2283             module_Need( id->p_encoder, "encoder", p_sys->psz_senc, VLC_TRUE );
2284
2285         if( !id->p_encoder->p_module )
2286         {
2287             module_Unneed( id->p_decoder, id->p_decoder->p_module );
2288             msg_Err( p_stream, "cannot find encoder" );
2289             return VLC_EGENERIC;
2290         }
2291     }
2292
2293     if( !p_sys->p_spu )
2294     {
2295         p_sys->p_spu = spu_Create( p_stream );
2296         spu_Init( p_sys->p_spu );
2297     }
2298
2299     return VLC_SUCCESS;
2300 }
2301
2302 static void transcode_spu_close( sout_stream_t *p_stream, sout_stream_id_t *id)
2303 {
2304     /* Close decoder */
2305     if( id->p_decoder->p_module )
2306         module_Unneed( id->p_decoder, id->p_decoder->p_module );
2307
2308     /* Close encoder */
2309     if( id->p_encoder->p_module )
2310         module_Unneed( id->p_encoder, id->p_encoder->p_module );
2311 }
2312
2313 static int transcode_spu_process( sout_stream_t *p_stream,
2314                                   sout_stream_id_t *id,
2315                                   block_t *in, block_t **out )
2316 {
2317     sout_stream_sys_t *p_sys = p_stream->p_sys;
2318     subpicture_t *p_subpic;
2319     *out = NULL;
2320
2321     p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
2322     if( !p_subpic ) return VLC_EGENERIC;
2323
2324     if( p_sys->b_master_sync && p_sys->i_master_drift )
2325     {
2326         p_subpic->i_start -= p_sys->i_master_drift;
2327         if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2328     }
2329
2330     if( p_sys->b_soverlay )
2331     {
2332         spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
2333     }
2334     else
2335     {
2336         block_t *p_block;
2337
2338         p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
2339         spu_del_buffer( id->p_decoder, p_subpic );
2340
2341         if( p_block )
2342         {
2343             block_ChainAppend( out, p_block );
2344             return VLC_SUCCESS;
2345         }
2346     }
2347
2348     return VLC_EGENERIC;
2349 }
2350
2351 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2352 {
2353     sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2354     return spu_CreateSubpicture( p_stream->p_sys->p_spu );
2355 }
2356
2357 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2358 {
2359     sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2360     spu_DestroySubpicture( p_stream->p_sys->p_spu, p_subpic );
2361 }
2362
2363 /*
2364  * OSD menu
2365  */
2366 static int transcode_osd_new( sout_stream_t *p_stream, sout_stream_id_t *id )
2367 {
2368     sout_stream_sys_t *p_sys = p_stream->p_sys;
2369     es_format_t fmt;
2370
2371     fmt.i_cat = SPU_ES;
2372     fmt.i_id = 0xbd1f; /* pid ?? */
2373     fmt.i_group = 3;   /* pmt entry ?? */
2374     fmt.i_codec = VLC_FOURCC( 'Y', 'U', 'V', 'A' );
2375     fmt.psz_language = strdup( "osd" );
2376
2377     id = malloc( sizeof( sout_stream_id_t ) );
2378     memset( id, 0, sizeof(sout_stream_id_t) );
2379
2380     id->id = NULL;
2381     id->p_decoder = NULL;
2382     id->p_encoder = NULL;
2383
2384     /* Create encoder object */
2385     id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
2386     if( !id->p_encoder )
2387     {
2388         msg_Err( p_stream, "out of memory" );
2389         goto error;
2390     }
2391     vlc_object_attach( id->p_encoder, p_stream );
2392     id->p_encoder->p_module = NULL;
2393
2394     /* Create fake destination format */
2395     es_format_Init( &id->p_encoder->fmt_out, fmt.i_cat, 0 );
2396     id->p_encoder->fmt_out.i_id    = fmt.i_id;
2397     id->p_encoder->fmt_out.i_group = fmt.i_group;
2398     id->p_encoder->fmt_out.psz_language = strdup( fmt.psz_language );
2399
2400     if( p_sys->i_osdcodec != 0 || p_sys->psz_osdenc )
2401     {
2402         msg_Dbg( p_stream, "creating osdmenu transcoding from fcc=`%4.4s' "
2403                  "to fcc=`%4.4s'", (char*)&fmt.i_codec,
2404                  (char*)&p_sys->i_osdcodec );
2405
2406         /* Complete destination format */
2407         id->p_encoder->fmt_out.i_codec = p_sys->i_osdcodec;
2408
2409         /*
2410          * Open encoder
2411          */
2412
2413         /* Initialization of encoder format structures */
2414         es_format_Init( &id->p_encoder->fmt_in, fmt.i_cat, fmt.i_codec );
2415         id->p_encoder->fmt_in.psz_language = strdup( fmt.psz_language );
2416
2417         id->p_encoder->p_cfg = p_sys->p_osd_cfg;
2418
2419         id->p_encoder->p_module =
2420             module_Need( id->p_encoder, "encoder", p_sys->psz_osdenc, VLC_TRUE );
2421
2422         if( !id->p_encoder->p_module )
2423         {
2424             msg_Err( p_stream, "cannot find encoder" );
2425             goto error;
2426         }
2427
2428         /* open output stream */
2429         id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
2430         id->b_transcode = VLC_TRUE;
2431
2432         if( !id->id ) goto error;
2433     }
2434     else
2435     {
2436         msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
2437                  (char*)&fmt.i_codec );
2438         id->id = p_sys->p_out->pf_add( p_sys->p_out, &fmt );
2439         id->b_transcode = VLC_FALSE;
2440
2441         if( !id->id ) goto error;
2442     }
2443
2444     p_sys->id_osd = id;
2445     p_sys->b_es_osd = VLC_TRUE;
2446
2447     if( !p_sys->p_spu )
2448     {
2449         p_sys->p_spu = spu_Create( p_stream );
2450         if( spu_Init( p_sys->p_spu ) != VLC_SUCCESS )
2451             msg_Err( p_sys, "spu initialisation failed" );
2452     }
2453
2454     if( fmt.psz_language )
2455         free( fmt.psz_language );
2456
2457     return VLC_SUCCESS;
2458
2459  error:
2460     msg_Err( p_stream, "starting osd encoding thread failed" );
2461     if( id->p_encoder->p_module )
2462             module_Unneed( id->p_encoder, id->p_encoder->p_module );
2463     if( id->p_encoder )
2464     {
2465         vlc_object_detach( id->p_encoder );
2466         vlc_object_destroy( id->p_encoder );
2467     }
2468     if( fmt.psz_language ) free( fmt.psz_language );
2469     if( id ) free( id );
2470     p_sys->id_osd = NULL;
2471     p_sys->b_es_osd = VLC_FALSE;
2472     return VLC_EGENERIC;
2473 }
2474
2475 static void transcode_osd_close( sout_stream_t *p_stream, sout_stream_id_t *id)
2476 {
2477     sout_stream_sys_t *p_sys = p_stream->p_sys;
2478
2479     /* Close encoder */
2480     if( p_sys->b_es_osd && id )
2481     {
2482         if( id->p_encoder->p_module )
2483             module_Unneed( id->p_encoder, id->p_encoder->p_module );
2484
2485         if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
2486
2487         if( id->p_encoder )
2488         {
2489             vlc_object_detach( id->p_encoder );
2490             vlc_object_destroy( id->p_encoder );
2491         }
2492     }
2493     p_sys->b_es_osd = VLC_FALSE;
2494     if( id ) free( id );
2495 }
2496
2497 static int transcode_osd_process( sout_stream_t *p_stream,
2498                                   sout_stream_id_t *id,
2499                                   block_t *in, block_t **out )
2500 {
2501     sout_stream_sys_t *p_sys = p_stream->p_sys;
2502     subpicture_t *p_subpic = NULL;
2503
2504     /* Check if we have a subpicture to send */
2505     if( p_sys->p_spu && in->i_dts > 0)
2506     {
2507         p_subpic = spu_SortSubpictures( p_sys->p_spu, in->i_dts );
2508     }
2509     else
2510     {
2511         msg_Warn( p_stream, "spu channel not initialized, doing it now" );
2512         if( !p_sys->p_spu )
2513         {
2514             p_sys->p_spu = spu_Create( p_stream );
2515             if( spu_Init( p_sys->p_spu ) != VLC_SUCCESS )
2516                 msg_Err( p_stream, "spu initialisation failed" );
2517         }
2518     }
2519
2520     if( p_subpic )
2521     {
2522         block_t *p_block = NULL;
2523
2524         if( p_sys->b_master_sync && p_sys->i_master_drift )
2525         {
2526             p_subpic->i_start -= p_sys->i_master_drift;
2527             if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2528         }
2529
2530         p_block = p_sys->id_osd->p_encoder->pf_encode_sub( p_sys->id_osd->p_encoder, p_subpic );
2531         if( p_block )
2532         {
2533             p_block->i_dts = p_block->i_pts = in->i_dts;
2534             block_ChainAppend( out, p_block );
2535             if( *out )
2536             {
2537                 if( p_sys->p_out->pf_send( p_sys->p_out, p_sys->id_osd->id, *out ) == VLC_SUCCESS )
2538                     spu_DestroySubpicture( p_sys->p_spu, p_subpic );
2539             }
2540             return VLC_SUCCESS;
2541         }
2542     }
2543     return VLC_EGENERIC;
2544 }