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, "decoded_audio", 1 );
1332         if( p_sys->b_master_sync )
1333         {
1334             mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1335             if ( p_audio_buf->start_date - i_dts > MASTER_SYNC_MAX_DRIFT
1336                   || p_audio_buf->start_date - i_dts < -MASTER_SYNC_MAX_DRIFT )
1337             {
1338                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1339                 date_Set( &id->interpolated_pts, p_audio_buf->start_date );
1340                 i_dts = p_audio_buf->start_date + 1;
1341             }
1342             p_sys->i_master_drift = p_audio_buf->start_date - i_dts;
1343             date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1344             p_audio_buf->start_date -= p_sys->i_master_drift;
1345             p_audio_buf->end_date -= p_sys->i_master_drift;
1346         }
1347
1348         p_audio_block = p_audio_buf->p_sys;
1349         p_audio_block->i_buffer = p_audio_buf->i_nb_bytes;
1350         p_audio_block->i_dts = p_audio_block->i_pts =
1351             p_audio_buf->start_date;
1352         p_audio_block->i_length = p_audio_buf->end_date -
1353             p_audio_buf->start_date;
1354         p_audio_block->i_samples = p_audio_buf->i_nb_samples;
1355
1356         /* Run filter chain */
1357         for( i = 0; i < id->i_filter; i++ )
1358         {
1359             p_audio_block =
1360                 id->pp_filter[i]->pf_audio_filter( id->pp_filter[i],
1361                                                    p_audio_block );
1362         }
1363
1364         p_audio_buf->p_buffer = p_audio_block->p_buffer;
1365         p_audio_buf->i_nb_bytes = p_audio_block->i_buffer;
1366         p_audio_buf->i_nb_samples = p_audio_block->i_samples;
1367         p_audio_buf->start_date = p_audio_block->i_dts;
1368         p_audio_buf->end_date = p_audio_block->i_dts + p_audio_block->i_length;
1369
1370         p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1371         block_ChainAppend( out, p_block );
1372         block_Release( p_audio_block );
1373         free( p_audio_buf );
1374     }
1375
1376     return VLC_SUCCESS;
1377 }
1378
1379 static void audio_release_buffer( aout_buffer_t *p_buffer )
1380 {
1381     if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1382     if( p_buffer ) free( p_buffer );
1383 }
1384
1385 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1386 {
1387     aout_buffer_t *p_buffer;
1388     block_t *p_block;
1389     int i_size;
1390
1391     if( p_dec->fmt_out.audio.i_bitspersample )
1392     {
1393         i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1394             p_dec->fmt_out.audio.i_channels;
1395     }
1396     else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1397              p_dec->fmt_out.audio.i_frame_length )
1398     {
1399         i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1400             p_dec->fmt_out.audio.i_frame_length;
1401     }
1402     else
1403     {
1404         i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1405     }
1406
1407     p_buffer = malloc( sizeof(aout_buffer_t) );
1408     p_buffer->pf_release = audio_release_buffer;
1409     p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1410
1411     p_buffer->p_buffer = p_block->p_buffer;
1412     p_buffer->i_size = p_buffer->i_nb_bytes = p_block->i_buffer;
1413     p_buffer->i_nb_samples = i_samples;
1414     p_block->i_samples = i_samples;
1415
1416     return p_buffer;
1417 }
1418
1419 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1420 {
1421     if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1422     if( p_buffer ) free( p_buffer );
1423 }
1424
1425 /*
1426  * video
1427  */
1428 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1429 {
1430     sout_stream_sys_t *p_sys = p_stream->p_sys;
1431     int i;
1432
1433     /*
1434      * Open decoder
1435      */
1436
1437     /* Initialization of decoder structures */
1438     id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1439     id->p_decoder->fmt_out.i_extra = 0;
1440     id->p_decoder->fmt_out.p_extra = 0;
1441     id->p_decoder->pf_decode_video = 0;
1442     id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1443     id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1444     id->p_decoder->pf_picture_link    = video_link_picture_decoder;
1445     id->p_decoder->pf_picture_unlink  = video_unlink_picture_decoder;
1446     id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1447     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1448         id->p_decoder->p_owner->pp_pics[i] = 0;
1449     id->p_decoder->p_owner->p_sys = p_sys;
1450     /* id->p_decoder->p_cfg = p_sys->p_video_cfg; */
1451
1452     id->p_decoder->p_module =
1453         module_Need( id->p_decoder, "decoder", "$codec", 0 );
1454
1455     if( !id->p_decoder->p_module )
1456     {
1457         msg_Err( p_stream, "cannot find decoder" );
1458         return VLC_EGENERIC;
1459     }
1460
1461     /*
1462      * Open encoder.
1463      * Because some info about the decoded input will only be available
1464      * once the first frame is decoded, we actually only test the availability
1465      * of the encoder here.
1466      */
1467
1468     /* Initialization of encoder format structures */
1469     es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1470                     id->p_decoder->fmt_out.i_codec );
1471     id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1472
1473     /* The dimensions will be set properly later on.
1474      * Just put sensible values so we can test an encoder is available. */
1475     id->p_encoder->fmt_in.video.i_width =
1476         id->p_encoder->fmt_out.video.i_width ?
1477         id->p_encoder->fmt_out.video.i_width :
1478         id->p_decoder->fmt_in.video.i_width ?
1479         id->p_decoder->fmt_in.video.i_width : 16;
1480     id->p_encoder->fmt_in.video.i_height =
1481         id->p_encoder->fmt_out.video.i_height ?
1482         id->p_encoder->fmt_out.video.i_height :
1483         id->p_decoder->fmt_in.video.i_height ?
1484         id->p_decoder->fmt_in.video.i_height : 16;
1485     id->p_encoder->fmt_in.video.i_frame_rate = 25;
1486     id->p_encoder->fmt_in.video.i_frame_rate_base = 1;
1487
1488     id->p_encoder->i_threads = p_sys->i_threads;
1489     id->p_encoder->p_cfg = p_sys->p_video_cfg;
1490
1491     id->p_encoder->p_module =
1492         module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1493     if( !id->p_encoder->p_module )
1494     {
1495         msg_Err( p_stream, "cannot find encoder" );
1496         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1497         id->p_decoder->p_module = 0;
1498         return VLC_EGENERIC;
1499     }
1500
1501     /* Close the encoder.
1502      * We'll open it only when we have the first frame. */
1503     module_Unneed( id->p_encoder, id->p_encoder->p_module );
1504     if( id->p_encoder->fmt_out.p_extra )
1505         free( id->p_encoder->fmt_out.p_extra );
1506     id->p_encoder->p_module = NULL;
1507
1508     if( p_sys->i_threads >= 1 )
1509     {
1510         int i_priority = p_sys->b_high_priority ? VLC_THREAD_PRIORITY_OUTPUT :
1511                            VLC_THREAD_PRIORITY_VIDEO;
1512         p_sys->id_video = id;
1513         vlc_mutex_init( p_stream, &p_sys->lock_out );
1514         vlc_cond_init( p_stream, &p_sys->cond );
1515         memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1516         p_sys->i_first_pic = 0;
1517         p_sys->i_last_pic = 0;
1518         p_sys->p_buffers = NULL;
1519         p_sys->b_die = p_sys->b_error = 0;
1520         if( vlc_thread_create( p_sys, "encoder", EncoderThread, i_priority,
1521                                VLC_FALSE ) )
1522         {
1523             msg_Err( p_stream, "cannot spawn encoder thread" );
1524             module_Unneed( id->p_decoder, id->p_decoder->p_module );
1525             id->p_decoder->p_module = 0;
1526             return VLC_EGENERIC;
1527         }
1528     }
1529
1530     return VLC_SUCCESS;
1531 }
1532
1533 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1534                                          sout_stream_id_t *id )
1535 {
1536     sout_stream_sys_t *p_sys = p_stream->p_sys;
1537
1538     /* Hack because of the copy packetizer which can fail to detect the
1539      * proper size (which forces us to wait until the 1st frame
1540      * is decoded) */
1541     int i_width = id->p_decoder->fmt_out.video.i_width -
1542         p_sys->i_crop_left - p_sys->i_crop_right;
1543     int i_height = id->p_decoder->fmt_out.video.i_height -
1544         p_sys->i_crop_top - p_sys->i_crop_bottom;
1545
1546     if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1547         id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1548     {
1549         /* Apply the scaling */
1550         id->p_encoder->fmt_out.video.i_width = i_width * p_sys->f_scale;
1551         id->p_encoder->fmt_out.video.i_height = i_height * p_sys->f_scale;
1552     }
1553     else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1554              id->p_encoder->fmt_out.video.i_height <= 0 )
1555     {
1556         id->p_encoder->fmt_out.video.i_height =
1557             id->p_encoder->fmt_out.video.i_width / (double)i_width * i_height;
1558     }
1559     else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1560              id->p_encoder->fmt_out.video.i_height > 0 )
1561     {
1562         id->p_encoder->fmt_out.video.i_width =
1563             id->p_encoder->fmt_out.video.i_height / (double)i_height * i_width;
1564     }
1565
1566     if( p_sys->i_maxwidth
1567          && id->p_encoder->fmt_out.video.i_width > p_sys->i_maxwidth )
1568         id->p_encoder->fmt_out.video.i_width = p_sys->i_maxwidth;
1569     if( p_sys->i_maxheight
1570          && id->p_encoder->fmt_out.video.i_height > p_sys->i_maxheight )
1571         id->p_encoder->fmt_out.video.i_height = p_sys->i_maxheight;
1572
1573     /* Make sure the size is at least a multiple of 2 */
1574     id->p_encoder->fmt_out.video.i_width =
1575         (id->p_encoder->fmt_out.video.i_width + 1) >> 1 << 1;
1576     id->p_encoder->fmt_out.video.i_height =
1577         (id->p_encoder->fmt_out.video.i_height + 1) >> 1 << 1;
1578
1579     id->p_encoder->fmt_in.video.i_width =
1580         id->p_encoder->fmt_out.video.i_width;
1581     id->p_encoder->fmt_in.video.i_height =
1582         id->p_encoder->fmt_out.video.i_height;
1583
1584     if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1585         !id->p_encoder->fmt_out.video.i_frame_rate_base )
1586     {
1587         if( id->p_decoder->fmt_out.video.i_frame_rate &&
1588             id->p_decoder->fmt_out.video.i_frame_rate_base )
1589         {
1590             id->p_encoder->fmt_out.video.i_frame_rate =
1591                 id->p_decoder->fmt_out.video.i_frame_rate;
1592             id->p_encoder->fmt_out.video.i_frame_rate_base =
1593                 id->p_decoder->fmt_out.video.i_frame_rate_base;
1594         }
1595         else
1596         {
1597             /* Pick a sensible default value */
1598             id->p_encoder->fmt_out.video.i_frame_rate = 25;
1599             id->p_encoder->fmt_out.video.i_frame_rate_base = 1;
1600         }
1601     }
1602
1603     id->p_encoder->fmt_in.video.i_frame_rate =
1604         id->p_encoder->fmt_out.video.i_frame_rate;
1605     id->p_encoder->fmt_in.video.i_frame_rate_base =
1606         id->p_encoder->fmt_out.video.i_frame_rate_base;
1607
1608     date_Init( &id->interpolated_pts,
1609                id->p_encoder->fmt_out.video.i_frame_rate,
1610                id->p_encoder->fmt_out.video.i_frame_rate_base );
1611
1612     /* Check whether a particular aspect ratio was requested */
1613     if( !id->p_encoder->fmt_out.video.i_aspect )
1614     {
1615         id->p_encoder->fmt_out.video.i_aspect =
1616             id->p_decoder->fmt_out.video.i_aspect;
1617     }
1618     id->p_encoder->fmt_in.video.i_aspect =
1619         id->p_encoder->fmt_out.video.i_aspect;
1620
1621     id->p_encoder->p_module =
1622         module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1623     if( !id->p_encoder->p_module )
1624     {
1625         msg_Err( p_stream, "cannot find encoder" );
1626         return VLC_EGENERIC;
1627     }
1628
1629     id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1630
1631     /* Hack for mp2v/mp1v transcoding support */
1632     if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','1','v') ||
1633         id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','2','v') )
1634     {
1635         id->p_encoder->fmt_out.i_codec = VLC_FOURCC('m','p','g','v');
1636     }
1637
1638     id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out,
1639                                              &id->p_encoder->fmt_out );
1640     if( !id->id )
1641     {
1642         msg_Err( p_stream, "cannot add this stream" );
1643         return VLC_EGENERIC;
1644     }
1645
1646     return VLC_SUCCESS;
1647 }
1648
1649 static void transcode_video_close( sout_stream_t *p_stream,
1650                                    sout_stream_id_t *id )
1651 {
1652     int i, j;
1653
1654     if( p_stream->p_sys->i_threads >= 1 )
1655     {
1656         vlc_mutex_lock( &p_stream->p_sys->lock_out );
1657         p_stream->p_sys->b_die = 1;
1658         vlc_cond_signal( &p_stream->p_sys->cond );
1659         vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1660         vlc_thread_join( p_stream->p_sys );
1661         vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1662         vlc_cond_destroy( &p_stream->p_sys->cond );
1663     }
1664
1665     /* Close decoder */
1666     if( id->p_decoder->p_module )
1667         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1668
1669     if( id->p_decoder->p_owner )
1670     {
1671         /* Clean-up pictures ring buffer */
1672         for( i = 0; i < PICTURE_RING_SIZE; i++ )
1673         {
1674             if( id->p_decoder->p_owner->pp_pics[i] )
1675                 video_del_buffer( VLC_OBJECT(id->p_decoder),
1676                                   id->p_decoder->p_owner->pp_pics[i] );
1677         }
1678         free( id->p_decoder->p_owner );
1679     }
1680
1681     /* Close encoder */
1682     if( id->p_encoder->p_module )
1683         module_Unneed( id->p_encoder, id->p_encoder->p_module );
1684
1685     /* Close filters */
1686     for( i = 0; i < id->i_filter; i++ )
1687     {
1688         vlc_object_detach( id->pp_filter[i] );
1689         if( id->pp_filter[i]->p_module )
1690             module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1691
1692         /* Clean-up pictures ring buffer */
1693         for( j = 0; j < PICTURE_RING_SIZE; j++ )
1694         {
1695             if( id->pp_filter[i]->p_owner->pp_pics[j] )
1696                 video_del_buffer( VLC_OBJECT(id->pp_filter[i]),
1697                                   id->pp_filter[i]->p_owner->pp_pics[j] );
1698         }
1699         free( id->pp_filter[i]->p_owner );
1700
1701         vlc_object_destroy( id->pp_filter[i] );
1702     }
1703     for( i = 0; i < id->i_vfilter; i++ )
1704     {
1705         vlc_object_detach( id->pp_vfilter[i] );
1706         if( id->pp_vfilter[i]->p_module )
1707             module_Unneed( id->pp_vfilter[i], id->pp_vfilter[i]->p_module );
1708
1709         /* Clean-up pictures ring buffer */
1710         for( j = 0; j < PICTURE_RING_SIZE; j++ )
1711         {
1712             if( id->pp_vfilter[i]->p_owner->pp_pics[j] )
1713                 video_del_buffer( VLC_OBJECT(id->pp_vfilter[i]),
1714                                   id->pp_vfilter[i]->p_owner->pp_pics[j] );
1715         }
1716         free( id->pp_vfilter[i]->p_owner );
1717
1718         vlc_object_destroy( id->pp_vfilter[i] );
1719     }
1720 }
1721
1722 static int transcode_video_process( sout_stream_t *p_stream,
1723                                     sout_stream_id_t *id,
1724                                     block_t *in, block_t **out )
1725 {
1726     sout_stream_sys_t *p_sys = p_stream->p_sys;
1727     int i_duplicate = 1, i;
1728     picture_t *p_pic, *p_pic2 = NULL;
1729     *out = NULL;
1730
1731     while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1732     {
1733         subpicture_t *p_subpic = 0;
1734         stats_UpdateInteger( p_stream->p_parent->p_parent, "decoded_video", 1 );
1735
1736         if( p_stream->p_sout->i_out_pace_nocontrol && p_sys->b_hurry_up )
1737         {
1738             mtime_t current_date = mdate();
1739             if( current_date + 50000 > p_pic->date )
1740             {
1741                 msg_Dbg( p_stream, "late picture skipped ("I64Fd")",
1742                          current_date + 50000 - p_pic->date );
1743                 p_pic->pf_release( p_pic );
1744                 continue;
1745             }
1746         }
1747
1748         if( p_sys->b_master_sync )
1749         {
1750             mtime_t i_video_drift;
1751             mtime_t i_master_drift = p_sys->i_master_drift;
1752             mtime_t i_pts;
1753
1754             i_pts = date_Get( &id->interpolated_pts ) + 1;
1755             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
1756                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
1757             {
1758                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1759                 date_Set( &id->interpolated_pts, p_pic->date );
1760                 i_pts = p_pic->date + 1;
1761             }
1762             i_video_drift = p_pic->date - i_pts;
1763             i_duplicate = 1;
1764
1765             /* Set the pts of the frame being encoded */
1766             p_pic->date = i_pts;
1767
1768             if( i_video_drift < i_master_drift - 50000 )
1769             {
1770 #if 0
1771                 msg_Dbg( p_stream, "dropping frame (%i)",
1772                          (int)(i_video_drift - i_master_drift) );
1773 #endif
1774                 p_pic->pf_release( p_pic );
1775                 continue;
1776             }
1777             else if( i_video_drift > i_master_drift + 50000 )
1778             {
1779 #if 0
1780                 msg_Dbg( p_stream, "adding frame (%i)",
1781                          (int)(i_video_drift - i_master_drift) );
1782 #endif
1783                 i_duplicate = 2;
1784             }
1785         }
1786
1787         if( !id->p_encoder->p_module )
1788         {
1789             if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1790             {
1791                 p_pic->pf_release( p_pic );
1792                 transcode_video_close( p_stream, id );
1793                 id->b_transcode = VLC_FALSE;
1794                 return VLC_EGENERIC;
1795             }
1796
1797             /* Deinterlace */
1798             if( p_stream->p_sys->b_deinterlace )
1799             {
1800                 id->pp_filter[id->i_filter] =
1801                     vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1802                 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1803
1804                 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1805                     video_new_buffer_filter;
1806                 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1807                     video_del_buffer_filter;
1808
1809                 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1810                 id->pp_filter[id->i_filter]->fmt_out = id->p_decoder->fmt_out;
1811                 id->pp_filter[id->i_filter]->p_cfg = p_sys->p_deinterlace_cfg;
1812                 id->pp_filter[id->i_filter]->p_module =
1813                     module_Need( id->pp_filter[id->i_filter],
1814                                  "video filter2", p_sys->psz_deinterlace, 0 );
1815                 if( id->pp_filter[id->i_filter]->p_module )
1816                 {
1817                     id->pp_filter[id->i_filter]->p_owner =
1818                         malloc( sizeof(filter_owner_sys_t) );
1819                     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1820                         id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1821                     id->pp_filter[id->i_filter]->p_owner->p_sys = p_sys;
1822
1823                     id->i_filter++;
1824                 }
1825                 else
1826                 {
1827                     msg_Dbg( p_stream, "no video filter found" );
1828                     vlc_object_detach( id->pp_filter[id->i_filter] );
1829                     vlc_object_destroy( id->pp_filter[id->i_filter] );
1830                 }
1831             }
1832
1833             /* Check if we need a filter for chroma conversion or resizing */
1834             if( id->p_decoder->fmt_out.video.i_chroma !=
1835                 id->p_encoder->fmt_in.video.i_chroma ||
1836                 id->p_decoder->fmt_out.video.i_width !=
1837                 id->p_encoder->fmt_out.video.i_width ||
1838                 id->p_decoder->fmt_out.video.i_height !=
1839                 id->p_encoder->fmt_out.video.i_height ||
1840                 p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
1841                 p_sys->i_crop_left > 0 || p_sys->i_crop_right > 0 )
1842             {
1843                 id->pp_filter[id->i_filter] =
1844                     vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1845                 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1846
1847                 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1848                     video_new_buffer_filter;
1849                 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1850                     video_del_buffer_filter;
1851
1852                 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1853                 id->pp_filter[id->i_filter]->fmt_out = id->p_encoder->fmt_in;
1854                 id->pp_filter[id->i_filter]->p_cfg = NULL;
1855                 id->pp_filter[id->i_filter]->p_module =
1856                     module_Need( id->pp_filter[id->i_filter],
1857                                  "video filter2", 0, 0 );
1858                 if( id->pp_filter[id->i_filter]->p_module )
1859                 {
1860                     id->pp_filter[id->i_filter]->p_owner =
1861                         malloc( sizeof(filter_owner_sys_t) );
1862                     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1863                         id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1864                     id->pp_filter[id->i_filter]->p_owner->p_sys = p_sys;
1865
1866                     id->i_filter++;
1867                 }
1868                 else
1869                 {
1870                     msg_Dbg( p_stream, "no video filter found" );
1871                     vlc_object_detach( id->pp_filter[id->i_filter] );
1872                     vlc_object_destroy( id->pp_filter[id->i_filter] );
1873
1874                     p_pic->pf_release( p_pic );
1875                     transcode_video_close( p_stream, id );
1876                     id->b_transcode = VLC_FALSE;
1877                     return VLC_EGENERIC;
1878                 }
1879             }
1880
1881             for( i = 0; i < p_sys->i_vfilters; i++ )
1882             {
1883                 id->pp_vfilter[id->i_vfilter] =
1884                     vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1885                 vlc_object_attach( id->pp_vfilter[id->i_vfilter], p_stream );
1886
1887                 id->pp_vfilter[id->i_vfilter]->pf_vout_buffer_new =
1888                     video_new_buffer_filter;
1889                 id->pp_vfilter[id->i_vfilter]->pf_vout_buffer_del =
1890                     video_del_buffer_filter;
1891
1892                 id->pp_vfilter[id->i_vfilter]->fmt_in = id->p_encoder->fmt_in;
1893                 id->pp_vfilter[id->i_vfilter]->fmt_out = id->p_encoder->fmt_in;
1894                 id->pp_vfilter[id->i_vfilter]->p_cfg = p_sys->p_vfilters_cfg[i];
1895                 id->pp_vfilter[id->i_vfilter]->p_module =
1896                     module_Need( id->pp_vfilter[id->i_vfilter],
1897                           "video filter2", p_sys->psz_vfilters[i], 0 );
1898                 if( id->pp_vfilter[id->i_vfilter]->p_module )
1899                 {
1900                     id->pp_vfilter[id->i_vfilter]->p_owner =
1901                         malloc( sizeof(filter_owner_sys_t) );
1902                     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1903                         id->pp_vfilter[id->i_vfilter]->p_owner->pp_pics[i] = 0;
1904                     id->pp_vfilter[id->i_vfilter]->p_owner->p_sys = p_sys;
1905
1906                     id->i_vfilter++;
1907                 }
1908                 else
1909                 {
1910                     msg_Dbg( p_stream, "no video filter found" );
1911                     vlc_object_detach( id->pp_vfilter[id->i_vfilter] );
1912                     vlc_object_destroy( id->pp_vfilter[id->i_vfilter] );
1913                 }
1914             }
1915         }
1916
1917         /* Run filter chain */
1918         for( i = 0; i < id->i_filter; i++ )
1919         {
1920             p_pic = id->pp_filter[i]->pf_video_filter(id->pp_filter[i], p_pic);
1921         }
1922
1923         /*
1924          * Encoding
1925          */
1926
1927         /* Check if we have a subpicture to overlay */
1928         if( p_sys->p_spu )
1929         {
1930             p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date );
1931             /* TODO: get another pic */
1932         }
1933
1934         /* Overlay subpicture */
1935         if( p_subpic )
1936         {
1937             int i_scale_width, i_scale_height;
1938             video_format_t *p_fmt;
1939
1940             i_scale_width = id->p_encoder->fmt_in.video.i_width * 1000 /
1941                 id->p_decoder->fmt_out.video.i_width;
1942             i_scale_height = id->p_encoder->fmt_in.video.i_height * 1000 /
1943                 id->p_decoder->fmt_out.video.i_height;
1944
1945             if( p_pic->i_refcount && !id->i_filter )
1946             {
1947                 /* We can't modify the picture, we need to duplicate it */
1948                 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1949                 if( p_tmp )
1950                 {
1951                     vout_CopyPicture( p_stream, p_tmp, p_pic );
1952                     p_pic->pf_release( p_pic );
1953                     p_pic = p_tmp;
1954                 }
1955             }
1956
1957             if( id->i_filter )
1958                 p_fmt = &id->pp_filter[id->i_filter -1]->fmt_out.video;
1959             else
1960                 p_fmt = &id->p_decoder->fmt_out.video;
1961
1962             /* FIXME (shouldn't have to be done here) */
1963             p_fmt->i_sar_num = p_fmt->i_aspect *
1964                 p_fmt->i_height / p_fmt->i_width;
1965             p_fmt->i_sar_den = VOUT_ASPECT_FACTOR;
1966
1967             spu_RenderSubpictures( p_sys->p_spu, p_fmt, p_pic, p_pic, p_subpic,
1968                                    i_scale_width, i_scale_height );
1969         }
1970
1971         /* Run vfilter chain */
1972         for( i = 0; i < id->i_vfilter; i++ )
1973         {
1974             p_pic = id->pp_vfilter[i]->pf_video_filter(id->pp_vfilter[i], p_pic);
1975         }
1976
1977         if( p_sys->i_threads == 0 )
1978         {
1979             block_t *p_block;
1980             p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1981             block_ChainAppend( out, p_block );
1982         }
1983
1984         if( p_sys->b_master_sync )
1985         {
1986             mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1987             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
1988                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
1989             {
1990                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1991                 date_Set( &id->interpolated_pts, p_pic->date );
1992                 i_pts = p_pic->date + 1;
1993             }
1994             date_Increment( &id->interpolated_pts, 1 );
1995         }
1996
1997         if( p_sys->b_master_sync && i_duplicate > 1 )
1998         {
1999             mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
2000             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
2001                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
2002             {
2003                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
2004                 date_Set( &id->interpolated_pts, p_pic->date );
2005                 i_pts = p_pic->date + 1;
2006             }
2007             date_Increment( &id->interpolated_pts, 1 );
2008
2009             if( p_sys->i_threads >= 1 )
2010             {
2011                 /* We can't modify the picture, we need to duplicate it */
2012                 p_pic2 = video_new_buffer_decoder( id->p_decoder );
2013                 if( p_pic2 != NULL )
2014                 {
2015                     vout_CopyPicture( p_stream, p_pic2, p_pic );
2016                     p_pic2->date = i_pts;
2017                 }
2018             }
2019             else
2020             {
2021                 block_t *p_block;
2022                 p_pic->date = i_pts;
2023                 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
2024                 block_ChainAppend( out, p_block );
2025             }
2026         }
2027
2028         if( p_sys->i_threads == 0 )
2029         {
2030             p_pic->pf_release( p_pic );
2031         }
2032         else
2033         {
2034             vlc_mutex_lock( &p_sys->lock_out );
2035             p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
2036             p_sys->i_last_pic %= PICTURE_RING_SIZE;
2037             *out = p_sys->p_buffers;
2038             p_sys->p_buffers = NULL;
2039             if( p_pic2 != NULL )
2040             {
2041                 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic2;
2042                 p_sys->i_last_pic %= PICTURE_RING_SIZE;
2043             }
2044             vlc_cond_signal( &p_sys->cond );
2045             vlc_mutex_unlock( &p_sys->lock_out );
2046         }
2047     }
2048
2049     return VLC_SUCCESS;
2050 }
2051
2052 static int EncoderThread( sout_stream_sys_t *p_sys )
2053 {
2054     sout_stream_id_t *id = p_sys->id_video;
2055     picture_t *p_pic;
2056
2057     while( !p_sys->b_die && !p_sys->b_error )
2058     {
2059         block_t *p_block;
2060
2061         vlc_mutex_lock( &p_sys->lock_out );
2062         while( p_sys->i_last_pic == p_sys->i_first_pic )
2063         {
2064             vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
2065             if( p_sys->b_die || p_sys->b_error ) break;
2066         }
2067         if( p_sys->b_die || p_sys->b_error )
2068         {
2069             vlc_mutex_unlock( &p_sys->lock_out );
2070             break;
2071         }
2072
2073         p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
2074         p_sys->i_first_pic %= PICTURE_RING_SIZE;
2075         vlc_mutex_unlock( &p_sys->lock_out );
2076
2077         p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
2078         vlc_mutex_lock( &p_sys->lock_out );
2079         block_ChainAppend( &p_sys->p_buffers, p_block );
2080
2081         vlc_mutex_unlock( &p_sys->lock_out );
2082
2083         p_pic->pf_release( p_pic );
2084     }
2085
2086     while( p_sys->i_last_pic != p_sys->i_first_pic )
2087     {
2088         p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
2089         p_sys->i_first_pic %= PICTURE_RING_SIZE;
2090
2091         p_pic->pf_release( p_pic );
2092     }
2093
2094     block_ChainRelease( p_sys->p_buffers );
2095
2096     return 0;
2097 }
2098
2099 struct picture_sys_t
2100 {
2101     vlc_object_t *p_owner;
2102 };
2103
2104 static void video_release_buffer( picture_t *p_pic )
2105 {
2106     if( p_pic && !p_pic->i_refcount && p_pic->pf_release && p_pic->p_sys )
2107     {
2108         video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
2109     }
2110     else if( p_pic && p_pic->i_refcount > 0 ) p_pic->i_refcount--;
2111 }
2112
2113 static picture_t *video_new_buffer( vlc_object_t *p_this, picture_t **pp_ring,
2114                                     sout_stream_sys_t *p_sys )
2115 {
2116     decoder_t *p_dec = (decoder_t *)p_this;
2117     picture_t *p_pic;
2118     int i;
2119
2120     /* Find an empty space in the picture ring buffer */
2121     for( i = 0; i < PICTURE_RING_SIZE; i++ )
2122     {
2123         if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
2124         {
2125             pp_ring[i]->i_status = RESERVED_PICTURE;
2126             return pp_ring[i];
2127         }
2128     }
2129     for( i = 0; i < PICTURE_RING_SIZE; i++ )
2130     {
2131         if( pp_ring[i] == 0 ) break;
2132     }
2133
2134     if( i == PICTURE_RING_SIZE && p_sys->i_threads >= 1 )
2135     {
2136         int i_first_pic = p_sys->i_first_pic;
2137
2138         if( p_sys->i_first_pic != p_sys->i_last_pic )
2139         {
2140             /* Encoder still has stuff to encode, wait to clear-up the list */
2141             while( p_sys->i_first_pic == i_first_pic )
2142                 msleep( 100000 );
2143         }
2144
2145         /* Find an empty space in the picture ring buffer */
2146         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2147         {
2148             if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
2149             {
2150                 pp_ring[i]->i_status = RESERVED_PICTURE;
2151                 return pp_ring[i];
2152             }
2153         }
2154         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2155         {
2156             if( pp_ring[i] == 0 ) break;
2157         }
2158     }
2159
2160     if( i == PICTURE_RING_SIZE )
2161     {
2162         msg_Err( p_this, "decoder/filter is leaking pictures, "
2163                  "resetting its ring buffer" );
2164
2165         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2166         {
2167             pp_ring[i]->pf_release( pp_ring[i] );
2168         }
2169
2170         i = 0;
2171     }
2172
2173     p_pic = malloc( sizeof(picture_t) );
2174     p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2175     vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
2176                           p_dec->fmt_out.video.i_chroma,
2177                           p_dec->fmt_out.video.i_width,
2178                           p_dec->fmt_out.video.i_height,
2179                           p_dec->fmt_out.video.i_aspect );
2180
2181     if( !p_pic->i_planes )
2182     {
2183         free( p_pic );
2184         return 0;
2185     }
2186
2187     p_pic->pf_release = video_release_buffer;
2188     p_pic->p_sys = malloc( sizeof(picture_sys_t) );
2189     p_pic->p_sys->p_owner = p_this;
2190     p_pic->i_status = RESERVED_PICTURE;
2191
2192     pp_ring[i] = p_pic;
2193
2194     return p_pic;
2195 }
2196
2197 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
2198 {
2199     return video_new_buffer( VLC_OBJECT(p_dec),
2200                              p_dec->p_owner->pp_pics, p_dec->p_owner->p_sys );
2201 }
2202
2203 static picture_t *video_new_buffer_filter( filter_t *p_filter )
2204 {
2205     return video_new_buffer( VLC_OBJECT(p_filter),
2206                              p_filter->p_owner->pp_pics,
2207                              p_filter->p_owner->p_sys );
2208 }
2209
2210 static void video_del_buffer( vlc_object_t *p_this, picture_t *p_pic )
2211 {
2212     if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
2213     if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
2214     if( p_pic ) free( p_pic );
2215 }
2216
2217 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
2218 {
2219     p_pic->i_refcount = 0;
2220     p_pic->i_status = DESTROYED_PICTURE;
2221 }
2222
2223 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
2224 {
2225     p_pic->i_refcount = 0;
2226     p_pic->i_status = DESTROYED_PICTURE;
2227 }
2228
2229 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
2230 {
2231     p_pic->i_refcount++;
2232 }
2233
2234 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
2235 {
2236     video_release_buffer( p_pic );
2237 }
2238
2239 /*
2240  * SPU
2241  */
2242 static subpicture_t *spu_new_buffer( decoder_t * );
2243 static void spu_del_buffer( decoder_t *, subpicture_t * );
2244
2245 static int transcode_spu_new( sout_stream_t *p_stream, sout_stream_id_t *id )
2246 {
2247     sout_stream_sys_t *p_sys = p_stream->p_sys;
2248
2249     /*
2250      * Open decoder
2251      */
2252
2253     /* Initialization of decoder structures */
2254     id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
2255     id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
2256     id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
2257     /* id->p_decoder->p_cfg = p_sys->p_spu_cfg; */
2258
2259     id->p_decoder->p_module =
2260         module_Need( id->p_decoder, "decoder", "$codec", 0 );
2261
2262     if( !id->p_decoder->p_module )
2263     {
2264         msg_Err( p_stream, "cannot find decoder" );
2265         return VLC_EGENERIC;
2266     }
2267
2268     if( !p_sys->b_soverlay )
2269     {
2270         /*
2271          * Open encoder
2272          */
2273
2274         /* Initialization of encoder format structures */
2275         es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
2276                         id->p_decoder->fmt_in.i_codec );
2277
2278         id->p_encoder->p_cfg = p_sys->p_spu_cfg;
2279
2280         id->p_encoder->p_module =
2281             module_Need( id->p_encoder, "encoder", p_sys->psz_senc, VLC_TRUE );
2282
2283         if( !id->p_encoder->p_module )
2284         {
2285             module_Unneed( id->p_decoder, id->p_decoder->p_module );
2286             msg_Err( p_stream, "cannot find encoder" );
2287             return VLC_EGENERIC;
2288         }
2289     }
2290
2291     if( !p_sys->p_spu )
2292     {
2293         p_sys->p_spu = spu_Create( p_stream );
2294         spu_Init( p_sys->p_spu );
2295     }
2296
2297     return VLC_SUCCESS;
2298 }
2299
2300 static void transcode_spu_close( sout_stream_t *p_stream, sout_stream_id_t *id)
2301 {
2302     /* Close decoder */
2303     if( id->p_decoder->p_module )
2304         module_Unneed( id->p_decoder, id->p_decoder->p_module );
2305
2306     /* Close encoder */
2307     if( id->p_encoder->p_module )
2308         module_Unneed( id->p_encoder, id->p_encoder->p_module );
2309 }
2310
2311 static int transcode_spu_process( sout_stream_t *p_stream,
2312                                   sout_stream_id_t *id,
2313                                   block_t *in, block_t **out )
2314 {
2315     sout_stream_sys_t *p_sys = p_stream->p_sys;
2316     subpicture_t *p_subpic;
2317     *out = NULL;
2318
2319     p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
2320     if( !p_subpic ) return VLC_EGENERIC;
2321
2322     if( p_sys->b_master_sync && p_sys->i_master_drift )
2323     {
2324         p_subpic->i_start -= p_sys->i_master_drift;
2325         if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2326     }
2327
2328     if( p_sys->b_soverlay )
2329     {
2330         spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
2331     }
2332     else
2333     {
2334         block_t *p_block;
2335
2336         p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
2337         spu_del_buffer( id->p_decoder, p_subpic );
2338
2339         if( p_block )
2340         {
2341             block_ChainAppend( out, p_block );
2342             return VLC_SUCCESS;
2343         }
2344     }
2345
2346     return VLC_EGENERIC;
2347 }
2348
2349 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2350 {
2351     sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2352     return spu_CreateSubpicture( p_stream->p_sys->p_spu );
2353 }
2354
2355 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2356 {
2357     sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2358     spu_DestroySubpicture( p_stream->p_sys->p_spu, p_subpic );
2359 }
2360
2361 /*
2362  * OSD menu
2363  */
2364 static int transcode_osd_new( sout_stream_t *p_stream, sout_stream_id_t *id )
2365 {
2366     sout_stream_sys_t *p_sys = p_stream->p_sys;
2367     es_format_t fmt;
2368
2369     fmt.i_cat = SPU_ES;
2370     fmt.i_id = 0xbd1f; /* pid ?? */
2371     fmt.i_group = 3;   /* pmt entry ?? */
2372     fmt.i_codec = VLC_FOURCC( 'Y', 'U', 'V', 'A' );
2373     fmt.psz_language = strdup( "osd" );
2374
2375     id = malloc( sizeof( sout_stream_id_t ) );
2376     memset( id, 0, sizeof(sout_stream_id_t) );
2377
2378     id->id = NULL;
2379     id->p_decoder = NULL;
2380     id->p_encoder = NULL;
2381
2382     /* Create encoder object */
2383     id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
2384     if( !id->p_encoder )
2385     {
2386         msg_Err( p_stream, "out of memory" );
2387         goto error;
2388     }
2389     vlc_object_attach( id->p_encoder, p_stream );
2390     id->p_encoder->p_module = NULL;
2391
2392     /* Create fake destination format */
2393     es_format_Init( &id->p_encoder->fmt_out, fmt.i_cat, 0 );
2394     id->p_encoder->fmt_out.i_id    = fmt.i_id;
2395     id->p_encoder->fmt_out.i_group = fmt.i_group;
2396     id->p_encoder->fmt_out.psz_language = strdup( fmt.psz_language );
2397
2398     if( p_sys->i_osdcodec != 0 || p_sys->psz_osdenc )
2399     {
2400         msg_Dbg( p_stream, "creating osdmenu transcoding from fcc=`%4.4s' "
2401                  "to fcc=`%4.4s'", (char*)&fmt.i_codec,
2402                  (char*)&p_sys->i_osdcodec );
2403
2404         /* Complete destination format */
2405         id->p_encoder->fmt_out.i_codec = p_sys->i_osdcodec;
2406
2407         /*
2408          * Open encoder
2409          */
2410
2411         /* Initialization of encoder format structures */
2412         es_format_Init( &id->p_encoder->fmt_in, fmt.i_cat, fmt.i_codec );
2413         id->p_encoder->fmt_in.psz_language = strdup( fmt.psz_language );
2414
2415         id->p_encoder->p_cfg = p_sys->p_osd_cfg;
2416
2417         id->p_encoder->p_module =
2418             module_Need( id->p_encoder, "encoder", p_sys->psz_osdenc, VLC_TRUE );
2419
2420         if( !id->p_encoder->p_module )
2421         {
2422             msg_Err( p_stream, "cannot find encoder" );
2423             goto error;
2424         }
2425
2426         /* open output stream */
2427         id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
2428         id->b_transcode = VLC_TRUE;
2429
2430         if( !id->id ) goto error;
2431     }
2432     else
2433     {
2434         msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
2435                  (char*)&fmt.i_codec );
2436         id->id = p_sys->p_out->pf_add( p_sys->p_out, &fmt );
2437         id->b_transcode = VLC_FALSE;
2438
2439         if( !id->id ) goto error;
2440     }
2441
2442     p_sys->id_osd = id;
2443     p_sys->b_es_osd = VLC_TRUE;
2444
2445     if( !p_sys->p_spu )
2446     {
2447         p_sys->p_spu = spu_Create( p_stream );
2448         if( spu_Init( p_sys->p_spu ) != VLC_SUCCESS )
2449             msg_Err( p_sys, "spu initialisation failed" );
2450     }
2451
2452     if( fmt.psz_language )
2453         free( fmt.psz_language );
2454
2455     return VLC_SUCCESS;
2456
2457  error:
2458     msg_Err( p_stream, "starting osd encoding thread failed" );
2459     if( id->p_encoder->p_module )
2460             module_Unneed( id->p_encoder, id->p_encoder->p_module );
2461     if( id->p_encoder )
2462     {
2463         vlc_object_detach( id->p_encoder );
2464         vlc_object_destroy( id->p_encoder );
2465     }
2466     if( fmt.psz_language ) free( fmt.psz_language );
2467     if( id ) free( id );
2468     p_sys->id_osd = NULL;
2469     p_sys->b_es_osd = VLC_FALSE;
2470     return VLC_EGENERIC;
2471 }
2472
2473 static void transcode_osd_close( sout_stream_t *p_stream, sout_stream_id_t *id)
2474 {
2475     sout_stream_sys_t *p_sys = p_stream->p_sys;
2476
2477     /* Close encoder */
2478     if( p_sys->b_es_osd && id )
2479     {
2480         if( id->p_encoder->p_module )
2481             module_Unneed( id->p_encoder, id->p_encoder->p_module );
2482
2483         if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
2484
2485         if( id->p_encoder )
2486         {
2487             vlc_object_detach( id->p_encoder );
2488             vlc_object_destroy( id->p_encoder );
2489         }
2490     }
2491     p_sys->b_es_osd = VLC_FALSE;
2492     if( id ) free( id );
2493 }
2494
2495 static int transcode_osd_process( sout_stream_t *p_stream,
2496                                   sout_stream_id_t *id,
2497                                   block_t *in, block_t **out )
2498 {
2499     sout_stream_sys_t *p_sys = p_stream->p_sys;
2500     subpicture_t *p_subpic = NULL;
2501
2502     /* Check if we have a subpicture to send */
2503     if( p_sys->p_spu && in->i_dts > 0)
2504     {
2505         p_subpic = spu_SortSubpictures( p_sys->p_spu, in->i_dts );
2506     }
2507     else
2508     {
2509         msg_Warn( p_stream, "spu channel not initialized, doing it now" );
2510         if( !p_sys->p_spu )
2511         {
2512             p_sys->p_spu = spu_Create( p_stream );
2513             if( spu_Init( p_sys->p_spu ) != VLC_SUCCESS )
2514                 msg_Err( p_stream, "spu initialisation failed" );
2515         }
2516     }
2517
2518     if( p_subpic )
2519     {
2520         block_t *p_block = NULL;
2521
2522         if( p_sys->b_master_sync && p_sys->i_master_drift )
2523         {
2524             p_subpic->i_start -= p_sys->i_master_drift;
2525             if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2526         }
2527
2528         p_block = p_sys->id_osd->p_encoder->pf_encode_sub( p_sys->id_osd->p_encoder, p_subpic );
2529         if( p_block )
2530         {
2531             p_block->i_dts = p_block->i_pts = in->i_dts;
2532             block_ChainAppend( out, p_block );
2533             if( *out )
2534             {
2535                 if( p_sys->p_out->pf_send( p_sys->p_out, p_sys->id_osd->id, *out ) == VLC_SUCCESS )
2536                     spu_DestroySubpicture( p_sys->p_spu, p_subpic );
2537             }
2538             return VLC_SUCCESS;
2539         }
2540     }
2541     return VLC_EGENERIC;
2542 }