git.sesse.net Git - vlc/blob - modules/mux/mpeg/ts.c

   1 /*****************************************************************************
   2  * ts.c: MPEG-II TS Muxer
   3  *****************************************************************************
   4  * Copyright (C) 2001, 2002 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Eric Petit <titer@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <stdlib.h>
  29
  30 #include <vlc/vlc.h>
  31 #include <vlc/input.h>
  32 #include <vlc/sout.h>
  33
  34 #include "iso_lang.h"
  35
  36 #include "bits.h"
  37 #include "pes.h"
  38 #include "csa.h"
  39
  40 #ifdef HAVE_DVBPSI_DR_H
  41 #   include <dvbpsi/dvbpsi.h>
  42 #   include <dvbpsi/descriptor.h>
  43 #   include <dvbpsi/pat.h>
  44 #   include <dvbpsi/pmt.h>
  45 #   include <dvbpsi/dr.h>
  46 #   include <dvbpsi/psi.h>
  47 #else
  48 #   include "dvbpsi.h"
  49 #   include "descriptor.h"
  50 #   include "tables/pat.h"
  51 #   include "tables/pmt.h"
  52 #   include "descriptors/dr.h"
  53 #   include "psi.h"
  54 #endif
  55
  56 /*
  57  * TODO:
  58  *  - check PCR frequency requirement
  59  *  - check PAT/PMT  "        "
  60  *  - check PCR/PCR "soft"
  61  *  - check if "registration" descriptor : "AC-3" should be a program
  62  *    descriptor or an es one. (xine want an es one)
  63  *
  64  *  - remove creation of PAT/PMT without dvbpsi
  65  *  - ?
  66  * FIXME:
  67  *  - subtitle support is far from perfect. I expect some subtitles drop
  68  *    if they arrive a bit late
  69  *    (We cannot rely on the fact that the fifo should be full)
  70  */
  71 /*****************************************************************************
  72  * Module descriptor
  73  *****************************************************************************/
  74 static int     Open   ( vlc_object_t * );
  75 static void    Close  ( vlc_object_t * );
  76
  77 #define VPID_TEXT N_("Video PID")
  78 #define VPID_LONGTEXT N_("Assigns a fixed PID to the video stream. The PCR " \
  79   "PID will automatically be the video.")
  80 #define APID_TEXT N_("Audio PID")
  81 #define APID_LONGTEXT N_("Assigns a fixed PID to the audio stream.")
  82 #define SPUPID_TEXT N_("SPU PID")
  83 #define SPUPID_LONGTEXT N_("Assigns a fixed PID to the SPU.")
  84 #define PMTPID_TEXT N_("PMT PID")
  85 #define PMTPID_LONGTEXT N_("Assings a fixed PID to the PMT")
  86 #define TSID_TEXT N_("TS ID")
  87 #define TSID_LONGTEXT N_("Assigns a fixed Transport Stream ID.")
  88
  89 #define SHAPING_TEXT N_("Shaping delay (ms)")
  90 #define SHAPING_LONGTEXT N_("If enabled, the TS muxer will cut the " \
  91   "stream in slices of the given duration, and ensure a constant bitrate " \
  92   "between the two boundaries. This avoids having huge bitrate peaks for " \
  93   "reference frames, in particular.")
  94 #define KEYF_TEXT N_("Use keyframes")
  95 #define KEYF_LONGTEXT N_("If enabled, and shaping is specified, " \
  96   "the TS muxer will place the boundaries at the end of I pictures. In " \
  97   "that case, the shaping duration given by the user is a worse case " \
  98   "used when no reference frame is available. This enhances the efficiency " \
  99   "of the shaping algorithm, since I frames are usually the biggest " \
 100   "frames in the stream.")
 101
 102 #define PCR_TEXT N_("PCR delay (ms)")
 103 #define PCR_LONGTEXT N_("This option allows you to set at which interval " \
 104   "PCRs (Program Clock Reference) will be sent. " \
 105   "This value should be below 100ms. (default is 30)")
 106
 107 #define DTS_TEXT N_("DTS delay (ms)")
 108 #define DTS_LONGTEXT N_("This option will delay the DTS (decoding time " \
 109   "stamps) and PTS (presentation timestamps) of the data in the " \
 110   "stream, compared to the PCRs. This allows for some buffering inside " \
 111   "the client decoder.")
 112
 113 #define ACRYPT_TEXT N_("Crypt audio")
 114 #define ACRYPT_LONGTEXT N_("Crypt audio using CSA")
 115
 116 #define CK_TEXT N_("CSA Key")
 117 #define CK_LONGTEXT N_("Defines the CSA encryption key. This must be a " \
 118   "16 char string (8 hexadecimal bytes).")
 119
 120 #define SOUT_CFG_PREFIX "sout-ts-"
 121
 122 vlc_module_begin();
 123     set_description( _("TS muxer (libdvbpsi)") );
 124     set_capability( "sout mux", 120 );
 125     add_shortcut( "ts" );
 126
 127     add_integer( SOUT_CFG_PREFIX "pid-video", 0, NULL,VPID_TEXT, VPID_LONGTEXT,
 128                                   VLC_TRUE );
 129     add_integer( SOUT_CFG_PREFIX "pid-audio", 0, NULL, APID_TEXT,
 130                  APID_LONGTEXT, VLC_TRUE );
 131     add_integer( SOUT_CFG_PREFIX "pid-spu", 0, NULL, SPUPID_TEXT,
 132                  SPUPID_LONGTEXT, VLC_TRUE );
 133     add_integer( SOUT_CFG_PREFIX "pid-pmt", 0, NULL, PMTPID_TEXT,
 134                  PMTPID_LONGTEXT, VLC_TRUE );
 135     add_integer( SOUT_CFG_PREFIX "tsid", 0, NULL, TSID_TEXT,
 136                  TSID_LONGTEXT, VLC_TRUE );
 137
 138     add_integer( SOUT_CFG_PREFIX "shaping", 200, NULL,SHAPING_TEXT,
 139                  SHAPING_LONGTEXT, VLC_TRUE );
 140     add_bool( SOUT_CFG_PREFIX "use-key-frames", VLC_FALSE, NULL, KEYF_TEXT,
 141               KEYF_LONGTEXT, VLC_TRUE );
 142
 143     add_integer( SOUT_CFG_PREFIX "pcr", 30, NULL, PCR_TEXT, PCR_LONGTEXT,
 144                  VLC_TRUE );
 145     add_integer( SOUT_CFG_PREFIX "bmin", 0, NULL, PCR_TEXT, PCR_LONGTEXT,
 146                  VLC_TRUE );
 147     add_integer( SOUT_CFG_PREFIX "bmax", 0, NULL, PCR_TEXT, PCR_LONGTEXT,
 148                  VLC_TRUE );
 149     add_integer( SOUT_CFG_PREFIX "dts-delay", 200, NULL, DTS_TEXT,
 150                  DTS_LONGTEXT, VLC_TRUE );
 151
 152     add_bool( SOUT_CFG_PREFIX "crypt-audio", VLC_TRUE, NULL, ACRYPT_TEXT,
 153               ACRYPT_LONGTEXT, VLC_TRUE );
 154
 155     add_string( SOUT_CFG_PREFIX "csa-ck", NULL, NULL, CK_TEXT, CK_LONGTEXT,
 156                 VLC_TRUE );
 157
 158     set_callbacks( Open, Close );
 159 vlc_module_end();
 160
 161 /*****************************************************************************
 162  * Local data structures
 163  *****************************************************************************/
 164 static const char *ppsz_sout_options[] = {
 165     "pid-video", "pid-audio", "pid-spu", "pid-pmt", "tsid", "shaping", "pcr",
 166     "bmin", "bmax", "use-key-frames", "dts-delay", "csa-ck", "crypt-audio",
 167     NULL
 168 };
 169
 170 #define SOUT_BUFFER_FLAGS_PRIVATE_PCR  ( 1 << BLOCK_FLAG_PRIVATE_SHIFT )
 171 #define SOUT_BUFFER_FLAGS_PRIVATE_CSA  ( 2 << BLOCK_FLAG_PRIVATE_SHIFT )
 172 typedef struct
 173 {
 174     int     i_depth;
 175     block_t *p_first;
 176     block_t **pp_last;
 177 } sout_buffer_chain_t;
 178
 179 static inline void BufferChainInit  ( sout_buffer_chain_t *c )
 180 {
 181     c->i_depth = 0;
 182     c->p_first = NULL;
 183     c->pp_last = &c->p_first;
 184 }
 185 static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
 186 {
 187     *c->pp_last = b;
 188     c->i_depth++;
 189
 190     while( b->p_next )
 191     {
 192         b = b->p_next;
 193         c->i_depth++;
 194     }
 195     c->pp_last = &b->p_next;
 196 }
 197 static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
 198 {
 199     block_t *b = c->p_first;
 200
 201     if( b )
 202     {
 203         c->i_depth--;
 204         c->p_first = b->p_next;
 205
 206         if( c->p_first == NULL )
 207         {
 208             c->pp_last = &c->p_first;
 209         }
 210
 211         b->p_next = NULL;
 212     }
 213     return b;
 214 }
 215 static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
 216 {
 217     block_t *b = c->p_first;
 218
 219     return b;
 220 }
 221 static inline void BufferChainClean( sout_instance_t *p_sout,
 222                                      sout_buffer_chain_t *c )
 223 {
 224     block_t *b;
 225
 226     while( ( b = BufferChainGet( c ) ) )
 227     {
 228         block_Release( b );
 229     }
 230     BufferChainInit( c );
 231 }
 232
 233 typedef struct ts_stream_t
 234 {
 235     int             i_pid;
 236     vlc_fourcc_t    i_codec;
 237
 238     int             i_stream_type;
 239     int             i_stream_id;
 240     int             i_continuity_counter;
 241
 242     /* to be used for carriege of DIV3 */
 243     vlc_fourcc_t    i_bih_codec;
 244     int             i_bih_width, i_bih_height;
 245
 246     /* Specific to mpeg4 in mpeg2ts */
 247     int             i_es_id;
 248
 249     int             i_decoder_specific_info;
 250     uint8_t         *p_decoder_specific_info;
 251
 252     /* language is iso639-2T */
 253     uint8_t         lang[3];
 254
 255     sout_buffer_chain_t chain_pes;
 256     mtime_t             i_pes_dts;
 257     mtime_t             i_pes_length;
 258     int                 i_pes_used;
 259     vlc_bool_t          b_key_frame;
 260
 261 } ts_stream_t;
 262
 263 struct sout_mux_sys_t
 264 {
 265     int             i_pcr_pid;
 266     sout_input_t    *p_pcr_input;
 267
 268     int             i_audio_bound;
 269     int             i_video_bound;
 270
 271     int             i_pid_video;
 272     int             i_pid_audio;
 273     int             i_pid_spu;
 274     int             i_pid_free; // first usable pid
 275
 276     int             i_tsid;
 277     int             i_pat_version_number;
 278     ts_stream_t     pat;
 279
 280     int             i_pmt_version_number;
 281     ts_stream_t     pmt;        // Up to now only one program
 282
 283     int             i_mpeg4_streams;
 284
 285     int             i_null_continuity_counter;  /* Needed ? */
 286
 287     /* for TS building */
 288     int64_t             i_bitrate_min;
 289     int64_t             i_bitrate_max;
 290
 291     int64_t             i_shaping_delay;
 292     int64_t             i_pcr_delay;
 293
 294     int64_t             i_dts_delay;
 295
 296     vlc_bool_t          b_use_key_frames;
 297
 298     mtime_t             i_pcr;  /* last PCR emited */
 299
 300     csa_t               *csa;
 301     vlc_bool_t          b_crypt_audio;
 302 };
 303
 304
 305 /* Reserve a pid and return it */
 306 static int  AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
 307 {
 308     int i_pid;
 309     if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
 310     {
 311         i_pid = p_sys->i_pid_video;
 312         p_sys->i_pid_video = 0;
 313     }
 314     else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
 315     {
 316         i_pid = p_sys->i_pid_audio;
 317         p_sys->i_pid_audio = 0;
 318     }
 319     else if ( i_cat == SPU_ES && p_sys->i_pid_spu )
 320     {
 321         i_pid = p_sys->i_pid_spu;
 322         p_sys->i_pid_spu = 0;
 323     }
 324     else
 325     {
 326         i_pid = ++p_sys->i_pid_free;
 327     }
 328     return i_pid;
 329 }
 330
 331 /*****************************************************************************
 332  * Local prototypes
 333  *****************************************************************************/
 334 static int Control  ( sout_mux_t *, int, va_list );
 335 static int AddStream( sout_mux_t *, sout_input_t * );
 336 static int DelStream( sout_mux_t *, sout_input_t * );
 337 static int Mux      ( sout_mux_t * );
 338
 339 static void TSSchedule  ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
 340                           mtime_t i_pcr_length, mtime_t i_pcr_dts );
 341 static void TSDate      ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
 342                           mtime_t i_pcr_length, mtime_t i_pcr_dts );
 343 static void GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
 344 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
 345
 346 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, vlc_bool_t b_pcr );
 347 static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
 348
 349 static void PEStoTS  ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
 350
 351 /*****************************************************************************
 352  * Open:
 353  *****************************************************************************/
 354 static int Open( vlc_object_t *p_this )
 355 {
 356     sout_mux_t          *p_mux =(sout_mux_t*)p_this;
 357     sout_mux_sys_t      *p_sys;
 358     vlc_value_t         val;
 359
 360     msg_Dbg( p_mux, "Open" );
 361     sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
 362
 363     p_sys = malloc( sizeof( sout_mux_sys_t ) );
 364
 365     p_mux->pf_control   = Control;
 366     p_mux->pf_addstream = AddStream;
 367     p_mux->pf_delstream = DelStream;
 368     p_mux->pf_mux       = Mux;
 369     p_mux->p_sys        = p_sys;
 370
 371     srand( (uint32_t)mdate() );
 372
 373     p_sys->i_audio_bound = 0;
 374     p_sys->i_video_bound = 0;
 375
 376     p_sys->i_pat_version_number = rand() % 32;
 377     p_sys->pat.i_pid = 0;
 378     p_sys->pat.i_continuity_counter = 0;
 379
 380     var_Get( p_mux, SOUT_CFG_PREFIX "tsid", &val );
 381     if ( val.i_int )
 382         p_sys->i_tsid = val.i_int;
 383     else
 384         p_sys->i_tsid = rand() % 65536;
 385     p_sys->i_pmt_version_number = rand() % 32;
 386     p_sys->pmt.i_continuity_counter = 0;
 387
 388     var_Get( p_mux, SOUT_CFG_PREFIX "pid-pmt", &val );
 389     if (val.i_int )
 390     {
 391         p_sys->pmt.i_pid = val.i_int;
 392     }
 393     else
 394     {
 395        p_sys->pmt.i_pid = 0x42;
 396     }
 397
 398     p_sys->i_pid_free = p_sys->pmt.i_pid + 1;
 399
 400     var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
 401     p_sys->i_pid_video = val.i_int;
 402     if ( p_sys->i_pid_video > p_sys->i_pid_free )
 403     {
 404         p_sys->i_pid_free = p_sys->i_pid_video + 1;
 405     }
 406
 407     var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
 408     p_sys->i_pid_audio = val.i_int;
 409     if ( p_sys->i_pid_audio > p_sys->i_pid_free )
 410     {
 411         p_sys->i_pid_free = p_sys->i_pid_audio + 1;
 412     }
 413
 414     var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
 415     p_sys->i_pid_spu = val.i_int;
 416     if ( p_sys->i_pid_spu > p_sys->i_pid_free )
 417     {
 418         p_sys->i_pid_free = p_sys->i_pid_spu + 1;
 419     }
 420
 421     p_sys->i_pcr_pid = 0x1fff;
 422     p_sys->p_pcr_input = NULL;
 423
 424     p_sys->i_mpeg4_streams = 0;
 425
 426     p_sys->i_null_continuity_counter = 0;
 427
 428     /* Allow to create constrained stream */
 429     var_Get( p_mux, SOUT_CFG_PREFIX "bmin", &val );
 430     p_sys->i_bitrate_min = val.i_int;
 431
 432     var_Get( p_mux, SOUT_CFG_PREFIX "bmax", &val );
 433     p_sys->i_bitrate_max = val.i_int;
 434
 435     if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
 436         p_sys->i_bitrate_min > p_sys->i_bitrate_max )
 437     {
 438         msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
 439                  "disabling bitrate control" );
 440         p_sys->i_bitrate_min = 0;
 441         p_sys->i_bitrate_max = 0;
 442     }
 443     if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
 444     {
 445         msg_Err( p_mux, "bmin and bmax no more supported "
 446                  "(if you need them report it)" );
 447     }
 448
 449     var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
 450     p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
 451     if( p_sys->i_shaping_delay <= 0 )
 452     {
 453         msg_Err( p_mux,
 454                  "invalid shaping ("I64Fd"ms) resetting to 200ms",
 455                  p_sys->i_shaping_delay / 1000 );
 456         p_sys->i_shaping_delay = 200000;
 457     }
 458
 459     var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
 460     p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
 461     if( p_sys->i_pcr_delay <= 0 ||
 462         p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
 463     {
 464         msg_Err( p_mux,
 465                  "invalid pcr delay ("I64Fd"ms) resetting to 30ms",
 466                  p_sys->i_pcr_delay / 1000 );
 467         p_sys->i_pcr_delay = 30000;
 468     }
 469
 470     var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
 471     p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
 472
 473     msg_Dbg( p_mux, "shaping="I64Fd" pcr="I64Fd" dts_delay="I64Fd,
 474              p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
 475
 476     var_Get( p_mux, SOUT_CFG_PREFIX "use-key-frames", &val );
 477     p_sys->b_use_key_frames = val.b_bool;
 478
 479     /* for TS generation */
 480     p_sys->i_pcr    = 0;
 481
 482     p_sys->csa      = NULL;
 483     var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
 484     if( val.psz_string )
 485     {
 486         char *psz = val.psz_string;
 487
 488         /* skip 0x */
 489         if( psz[0] == '0' && ( psz[1] == 'x' || psz[1] == 'X' ) )
 490         {
 491             psz += 2;
 492         }
 493         if( strlen( psz ) != 16 )
 494         {
 495             msg_Dbg( p_mux, "invalid csa ck (it must be 16 chars long)" );
 496         }
 497         else
 498         {
 499             uint64_t i_ck = strtoull( psz, NULL, 16 );
 500             uint8_t  ck[8];
 501             int      i;
 502
 503             for( i = 0; i < 8; i++ )
 504             {
 505                 ck[i] = ( i_ck >> ( 56 - 8*i) )&0xff;
 506             }
 507
 508             msg_Dbg( p_mux, "using CSA scrambling with ck=%x:%x:%x:%x:%x:%x:%x:%x",
 509                      ck[0], ck[1], ck[2], ck[3], ck[4], ck[5], ck[6], ck[7] );
 510
 511             p_sys->csa = csa_New();
 512             csa_SetCW( p_sys->csa, ck, ck );
 513         }
 514     }
 515     if( val.psz_string ) free( val.psz_string );
 516
 517     var_Get( p_mux, SOUT_CFG_PREFIX "crypt-audio", &val );
 518     p_sys->b_crypt_audio = val.b_bool;
 519
 520     return VLC_SUCCESS;
 521 }
 522
 523 /*****************************************************************************
 524  * Close:
 525  *****************************************************************************/
 526 static void Close( vlc_object_t * p_this )
 527 {
 528     sout_mux_t          *p_mux = (sout_mux_t*)p_this;
 529     sout_mux_sys_t      *p_sys = p_mux->p_sys;
 530
 531     msg_Dbg( p_mux, "Close" );
 532     if( p_sys->csa )
 533     {
 534         csa_Delete( p_sys->csa );
 535     }
 536
 537     free( p_sys );
 538 }
 539
 540 /*****************************************************************************
 541  * Control:
 542  *****************************************************************************/
 543 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
 544 {
 545     vlc_bool_t *pb_bool;
 546     char **ppsz;
 547
 548    switch( i_query )
 549    {
 550        case MUX_CAN_ADD_STREAM_WHILE_MUXING:
 551            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 552            *pb_bool = VLC_TRUE;
 553            return VLC_SUCCESS;
 554
 555        case MUX_GET_ADD_STREAM_WAIT:
 556            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 557            *pb_bool = VLC_FALSE;
 558            return VLC_SUCCESS;
 559
 560        case MUX_GET_MIME:
 561            ppsz = (char**)va_arg( args, char ** );
 562            *ppsz = strdup( "video/mpeg" );  /* FIXME not sure */
 563            return VLC_SUCCESS;
 564
 565         default:
 566             return VLC_EGENERIC;
 567    }
 568 }
 569
 570 /*****************************************************************************
 571  * AddStream: called for each stream addition
 572  *****************************************************************************/
 573 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
 574 {
 575     sout_mux_sys_t      *p_sys = p_mux->p_sys;
 576     ts_stream_t         *p_stream;
 577
 578     p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
 579
 580     /* Init this new stream */
 581     p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
 582     p_stream->i_codec = p_input->p_fmt->i_codec;
 583     p_stream->i_continuity_counter    = 0;
 584     p_stream->i_decoder_specific_info = 0;
 585     p_stream->p_decoder_specific_info = NULL;
 586
 587     msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
 588              (char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
 589
 590     /* All others fields depand on codec */
 591     switch( p_input->p_fmt->i_cat )
 592     {
 593         case VIDEO_ES:
 594             switch( p_input->p_fmt->i_codec )
 595             {
 596                 case VLC_FOURCC( 'm', 'p','g', 'v' ):
 597                     /* TODO: do we need to check MPEG-I/II ? */
 598                     p_stream->i_stream_type = 0x02;
 599                     p_stream->i_stream_id = 0xe0;
 600                     break;
 601                 case VLC_FOURCC( 'm', 'p','4', 'v' ):
 602                     p_stream->i_stream_type = 0x10;
 603                     p_stream->i_stream_id = 0xfa;
 604                     p_sys->i_mpeg4_streams++;
 605                     p_stream->i_es_id = p_stream->i_pid;
 606                     break;
 607                 case VLC_FOURCC( 'h', '2','6', '4' ):
 608                     p_stream->i_stream_type = 0x1b;
 609                     p_stream->i_stream_id = 0xe0;
 610                     break;
 611                 /* XXX dirty dirty but somebody want that:
 612                  *     using crapy MS-codec XXX */
 613                 /* I didn't want to do that :P */
 614                 case VLC_FOURCC( 'H', '2', '6', '3' ):
 615                 case VLC_FOURCC( 'I', '2', '6', '3' ):
 616                 case VLC_FOURCC( 'W', 'M', 'V', '3' ):
 617                 case VLC_FOURCC( 'W', 'M', 'V', '2' ):
 618                 case VLC_FOURCC( 'W', 'M', 'V', '1' ):
 619                 case VLC_FOURCC( 'D', 'I', 'V', '3' ):
 620                 case VLC_FOURCC( 'D', 'I', 'V', '2' ):
 621                 case VLC_FOURCC( 'D', 'I', 'V', '1' ):
 622                 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
 623                     p_stream->i_stream_type = 0xa0; // private
 624                     p_stream->i_stream_id = 0xa0;   // beurk
 625                     p_stream->i_bih_codec  = p_input->p_fmt->i_codec;
 626                     p_stream->i_bih_width  = p_input->p_fmt->video.i_width;
 627                     p_stream->i_bih_height = p_input->p_fmt->video.i_height;
 628                     break;
 629                 default:
 630                     free( p_stream );
 631                     return VLC_EGENERIC;
 632             }
 633             p_sys->i_video_bound++;
 634             break;
 635
 636         case AUDIO_ES:
 637             switch( p_input->p_fmt->i_codec )
 638             {
 639                 case VLC_FOURCC( 'm', 'p','g', 'a' ):
 640                     p_stream->i_stream_type =
 641                         p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
 642                     p_stream->i_stream_id = 0xc0;
 643                     break;
 644                 case VLC_FOURCC( 'a', '5','2', ' ' ):
 645                     p_stream->i_stream_type = 0x81;
 646                     p_stream->i_stream_id = 0xbd;
 647                     break;
 648                 case VLC_FOURCC( 'l', 'p','c', 'm' ):
 649                     p_stream->i_stream_type = 0x83;
 650                     p_stream->i_stream_id = 0xbd;
 651                     break;
 652                 case VLC_FOURCC( 'd', 't','s', ' ' ):
 653                     p_stream->i_stream_type = 0x06;
 654                     p_stream->i_stream_id = 0xbd;
 655                     break;
 656
 657                 case VLC_FOURCC( 'm', 'p','4', 'a' ):
 658                     p_stream->i_stream_type = 0x11;
 659                     p_stream->i_stream_id = 0xfa;
 660                     p_sys->i_mpeg4_streams++;
 661                     p_stream->i_es_id = p_stream->i_pid;
 662                     break;
 663                 default:
 664                     free( p_stream );
 665                     return VLC_EGENERIC;
 666             }
 667             p_sys->i_audio_bound++;
 668             break;
 669
 670         case SPU_ES:
 671             switch( p_input->p_fmt->i_codec )
 672             {
 673                 case VLC_FOURCC( 's', 'p','u', ' ' ):
 674                     p_stream->i_stream_type = 0x82;
 675                     p_stream->i_stream_id = 0xbd;
 676                     break;
 677                 case VLC_FOURCC( 's', 'u','b', 't' ):
 678                     p_stream->i_stream_type = 0x12;
 679                     p_stream->i_stream_id = 0xfa;
 680                     p_sys->i_mpeg4_streams++;
 681                     p_stream->i_es_id = p_stream->i_pid;
 682                     break;
 683                 case VLC_FOURCC('d','v','b','s'):
 684                     p_stream->i_stream_type = 0x06;
 685                     p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
 686                     p_stream->i_stream_id = 0xbd;
 687                     break;
 688                 case VLC_FOURCC('t','e','l','x'):
 689                     p_stream->i_stream_type = 0x06;
 690                     p_stream->i_stream_id = 0xbd; /* FIXME */
 691                     break;
 692                 default:
 693                     free( p_stream );
 694                     return VLC_EGENERIC;
 695             }
 696             break;
 697
 698         default:
 699             free( p_stream );
 700             return VLC_EGENERIC;
 701     }
 702
 703     p_stream->lang[0] =
 704     p_stream->lang[1] =
 705     p_stream->lang[2] = '\0';
 706     if( p_input->p_fmt->psz_language )
 707     {
 708         char *psz = p_input->p_fmt->psz_language;
 709         const iso639_lang_t *pl = NULL;
 710
 711         if( strlen( psz ) == 2 )
 712         {
 713             pl = GetLang_1( psz );
 714         }
 715         else if( strlen( psz ) == 3 )
 716         {
 717             pl = GetLang_2B( psz );
 718             if( !strcmp( pl->psz_iso639_1, "??" ) )
 719             {
 720                 pl = GetLang_2T( psz );
 721             }
 722         }
 723         if( pl && strcmp( pl->psz_iso639_1, "??" ) )
 724         {
 725             p_stream->lang[0] = pl->psz_iso639_2T[0];
 726             p_stream->lang[1] = pl->psz_iso639_2T[1];
 727             p_stream->lang[2] = pl->psz_iso639_2T[2];
 728
 729             msg_Dbg( p_mux, "    - lang=%c%c%c",
 730                      p_stream->lang[0], p_stream->lang[1], p_stream->lang[2] );
 731         }
 732     }
 733
 734
 735     /* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
 736     p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
 737     if( p_stream->i_decoder_specific_info > 0 )
 738     {
 739         p_stream->p_decoder_specific_info =
 740             malloc( p_stream->i_decoder_specific_info );
 741         memcpy( p_stream->p_decoder_specific_info,
 742                 p_input->p_fmt->p_extra,
 743                 p_input->p_fmt->i_extra );
 744     }
 745
 746     /* Create decoder specific info for subt */
 747     if( p_stream->i_codec == VLC_FOURCC( 's', 'u','b', 't' ) )
 748     {
 749         uint8_t *p;
 750
 751         p_stream->i_decoder_specific_info = 55;
 752         p_stream->p_decoder_specific_info = p =
 753             malloc( p_stream->i_decoder_specific_info );
 754
 755         p[0] = 0x10;    /* textFormat, 0x10 for 3GPP TS 26.245 */
 756         p[1] = 0x00;    /* flags: 1b: associated video info flag
 757                                   3b: reserved
 758                                   1b: duration flag
 759                                   3b: reserved */
 760         p[2] = 52;      /* remaining size */
 761
 762         p += 3;
 763
 764         p[0] = p[1] = p[2] = p[3] = 0; p+=4;    /* display flags */
 765         *p++ = 0;  /* horizontal justification (-1: left, 0 center, 1 right) */
 766         *p++ = 1;  /* vertical   justification (-1: top, 0 center, 1 bottom) */
 767
 768         p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
 769         *p++ = 0xff;                    /* background a */
 770
 771         p[0] = p[1] = 0; p += 2;        /* text box top */
 772         p[0] = p[1] = 0; p += 2;        /* text box left */
 773         p[0] = p[1] = 0; p += 2;        /* text box bottom */
 774         p[0] = p[1] = 0; p += 2;        /* text box right */
 775
 776         p[0] = p[1] = 0; p += 2;        /* start char */
 777         p[0] = p[1] = 0; p += 2;        /* end char */
 778         p[0] = p[1] = 0; p += 2;        /* default font id */
 779
 780         *p++ = 0;                       /* font style flags */
 781         *p++ = 12;                      /* font size */
 782
 783         p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
 784         *p++ = 0x00;                    /* foreground a */
 785
 786         p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
 787         memcpy( p, "ftab", 4 ); p += 4;
 788         *p++ = 0; *p++ = 1;             /* entry count */
 789         p[0] = p[1] = 0; p += 2;        /* font id */
 790         *p++ = 9;                       /* font name length */
 791         memcpy( p, "Helvetica", 9 );    /* font name */
 792     }
 793
 794     /* Init pes chain */
 795     BufferChainInit( &p_stream->chain_pes );
 796     p_stream->i_pes_dts    = 0;
 797     p_stream->i_pes_length = 0;
 798     p_stream->i_pes_used   = 0;
 799     p_stream->b_key_frame  = 0;
 800
 801     /* We only change PMT version (PAT isn't changed) */
 802     p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
 803
 804     /* Update pcr_pid */
 805     if( p_input->p_fmt->i_cat != SPU_ES &&
 806         ( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
 807     {
 808         if( p_sys->p_pcr_input )
 809         {
 810             /* There was already a PCR stream, so clean context */
 811             /* FIXME */
 812         }
 813         p_sys->i_pcr_pid   = p_stream->i_pid;
 814         p_sys->p_pcr_input = p_input;
 815
 816         msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
 817     }
 818
 819     return VLC_SUCCESS;
 820 }
 821
 822 /*****************************************************************************
 823  * DelStream: called before a stream deletion
 824  *****************************************************************************/
 825 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
 826 {
 827     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 828     ts_stream_t     *p_stream;
 829     vlc_value_t     val;
 830
 831     p_stream = (ts_stream_t*)p_input->p_sys;
 832     msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
 833
 834     if( p_sys->i_pcr_pid == p_stream->i_pid )
 835     {
 836         int i;
 837
 838         /* Find a new pcr stream (Prefer Video Stream) */
 839         p_sys->i_pcr_pid = 0x1fff;
 840         p_sys->p_pcr_input = NULL;
 841         for( i = 0; i < p_mux->i_nb_inputs; i++ )
 842         {
 843             if( p_mux->pp_inputs[i] == p_input )
 844             {
 845                 continue;
 846             }
 847
 848             if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
 849             {
 850                 p_sys->i_pcr_pid  =
 851                     ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
 852                 p_sys->p_pcr_input= p_mux->pp_inputs[i];
 853                 break;
 854             }
 855             else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
 856                      p_sys->i_pcr_pid == 0x1fff )
 857             {
 858                 p_sys->i_pcr_pid  =
 859                     ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
 860                 p_sys->p_pcr_input= p_mux->pp_inputs[i];
 861             }
 862         }
 863         if( p_sys->p_pcr_input )
 864         {
 865             /* Empty TS buffer */
 866             /* FIXME */
 867         }
 868         msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
 869     }
 870
 871     /* Empty all data in chain_pes */
 872     BufferChainClean( p_mux->p_sout, &p_stream->chain_pes );
 873
 874     if( p_stream->p_decoder_specific_info )
 875     {
 876         free( p_stream->p_decoder_specific_info );
 877     }
 878     if( p_stream->i_stream_id == 0xfa ||
 879         p_stream->i_stream_id == 0xfb ||
 880         p_stream->i_stream_id == 0xfe )
 881     {
 882         p_sys->i_mpeg4_streams--;
 883     }
 884
 885     var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
 886     if( val.i_int > 0 )
 887     {
 888         int i_pid_video = val.i_int;
 889         if ( i_pid_video == p_stream->i_pid )
 890         {
 891             p_sys->i_pid_video = i_pid_video;
 892             msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
 893         }
 894     }
 895     var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
 896     if( val.i_int > 0 )
 897     {
 898         int i_pid_audio = val.i_int;
 899         if ( i_pid_audio == p_stream->i_pid )
 900         {
 901             p_sys->i_pid_audio = i_pid_audio;
 902             msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
 903         }
 904     }
 905     var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
 906     if( val.i_int > 0 )
 907     {
 908         int i_pid_spu = val.i_int;
 909         if ( i_pid_spu == p_stream->i_pid )
 910         {
 911             p_sys->i_pid_spu = i_pid_spu;
 912             msg_Dbg( p_mux, "freeing spu PID %d", i_pid_spu );
 913         }
 914     }
 915     free( p_stream );
 916
 917     /* We only change PMT version (PAT isn't changed) */
 918     p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
 919
 920     return VLC_SUCCESS;
 921 }
 922
 923 /*****************************************************************************
 924  * Mux: Call each time there is new data for at least one stream
 925  *****************************************************************************
 926  *
 927  *****************************************************************************/
 928 static int Mux( sout_mux_t *p_mux )
 929 {
 930     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 931     ts_stream_t     *p_pcr_stream;
 932
 933     if( p_sys->i_pcr_pid == 0x1fff )
 934     {
 935         msg_Dbg( p_mux, "waiting for PCR streams" );
 936         msleep( 1000 );
 937         return VLC_SUCCESS;
 938     }
 939     p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
 940
 941     for( ;; )
 942     {
 943         sout_buffer_chain_t chain_ts;
 944         int                 i_packet_count;
 945         int                 i_packet_pos;
 946         mtime_t             i_pcr_dts;
 947         mtime_t             i_pcr_length;
 948         mtime_t             i_shaping_delay;
 949         int i;
 950
 951         if( p_pcr_stream->b_key_frame )
 952         {
 953             i_shaping_delay = p_pcr_stream->i_pes_length;
 954         }
 955         else
 956         {
 957             i_shaping_delay = p_sys->i_shaping_delay;
 958         }
 959
 960         /* 1: get enough PES packet for all input */
 961         for( ;; )
 962         {
 963             vlc_bool_t b_ok = VLC_TRUE;
 964             block_t *p_data;
 965
 966             /* Accumulate enough data in the pcr stream (>i_shaping_delay) */
 967             /* Accumulate enough data in all other stream ( >= length of pcr)*/
 968             for( i = 0; i < p_mux->i_nb_inputs; i++ )
 969             {
 970                 sout_input_t *p_input = p_mux->pp_inputs[i];
 971                 ts_stream_t *p_stream = (ts_stream_t*)p_input->p_sys;
 972                 int64_t i_spu_delay = 0;
 973
 974                 if( ( p_stream == p_pcr_stream &&
 975                       p_stream->i_pes_length < i_shaping_delay ) ||
 976                     p_stream->i_pes_dts + p_stream->i_pes_length <
 977                     p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
 978                 {
 979                     /* Need more data */
 980                     if( p_input->p_fifo->i_depth <= 1 )
 981                     {
 982                         if( p_input->p_fmt->i_cat == AUDIO_ES ||
 983                             p_input->p_fmt->i_cat == VIDEO_ES )
 984                         {
 985                             /* We need more data */
 986                             return VLC_SUCCESS;
 987                         }
 988                         else if( p_input->p_fifo->i_depth <= 0 )
 989                         {
 990                             /* spu, only one packet is needed */
 991                             continue;
 992                         }
 993                         else
 994                         {
 995                             /* Don't mux the SPU yet if it is too early */
 996                             block_t *p_spu = block_FifoShow( p_input->p_fifo );
 997
 998                             i_spu_delay =
 999                                 p_spu->i_dts - p_pcr_stream->i_pes_dts;
1000
1001                             if( i_spu_delay > i_shaping_delay &&
1002                                 i_spu_delay < I64C(100000000) )
1003                                 continue;
1004
1005                             if ( i_spu_delay >= I64C(100000000)
1006                                   || i_spu_delay < 10000 )
1007                             {
1008                                 BufferChainClean( p_mux->p_sout,
1009                                                   &p_stream->chain_pes );
1010                                 p_stream->i_pes_dts = 0;
1011                                 p_stream->i_pes_used = 0;
1012                                 p_stream->i_pes_length = 0;
1013                                 continue;
1014                             }
1015                         }
1016                     }
1017                     b_ok = VLC_FALSE;
1018
1019                     p_data = block_FifoGet( p_input->p_fifo );
1020                     if( p_input->p_fifo->i_depth > 0 &&
1021                         p_input->p_fmt->i_cat != SPU_ES )
1022                     {
1023                         block_t *p_next = block_FifoShow( p_input->p_fifo );
1024                         p_data->i_length = p_next->i_dts - p_data->i_dts;
1025                     }
1026                     else
1027                         p_data->i_length = 1000;
1028
1029                     if( ( p_pcr_stream->i_pes_dts > 0 &&
1030                           p_data->i_dts - 10000000 > p_pcr_stream->i_pes_dts +
1031                           p_pcr_stream->i_pes_length ) ||
1032                         p_data->i_dts < p_stream->i_pes_dts ||
1033                         ( p_stream->i_pes_dts > 0 &&
1034                           p_input->p_fmt->i_cat != SPU_ES &&
1035                           p_data->i_dts - 10000000 > p_stream->i_pes_dts +
1036                           p_stream->i_pes_length ) )
1037                     {
1038                         msg_Warn( p_mux, "packet with too strange dts "
1039                                   "(dts="I64Fd",old="I64Fd",pcr="I64Fd")",
1040                                   p_data->i_dts, p_stream->i_pes_dts,
1041                                   p_pcr_stream->i_pes_dts );
1042                         block_Release( p_data );
1043
1044                         BufferChainClean( p_mux->p_sout,
1045                                           &p_stream->chain_pes );
1046                         p_stream->i_pes_dts = 0;
1047                         p_stream->i_pes_used = 0;
1048                         p_stream->i_pes_length = 0;
1049
1050                         if( p_input->p_fmt->i_cat != SPU_ES )
1051                         {
1052                             BufferChainClean( p_mux->p_sout,
1053                                               &p_pcr_stream->chain_pes );
1054                             p_pcr_stream->i_pes_dts = 0;
1055                             p_pcr_stream->i_pes_used = 0;
1056                             p_pcr_stream->i_pes_length = 0;
1057                         }
1058                     }
1059                     else
1060                     {
1061                         int i_header_size = 0;
1062                         int b_data_alignment = 0;
1063                         if( p_input->p_fmt->i_cat == SPU_ES )
1064                         {
1065                             if( p_input->p_fmt->i_codec ==
1066                                 VLC_FOURCC('s','u','b','t') )
1067                             {
1068                                 /* Prepend header */
1069                                 p_data = block_Realloc( p_data, 2,
1070                                                         p_data->i_buffer );
1071                                 p_data->p_buffer[0] =
1072                                     ( (p_data->i_buffer - 2) >> 8) & 0xff;
1073                                 p_data->p_buffer[1] =
1074                                     ( (p_data->i_buffer - 2)     ) & 0xff;
1075
1076                                 /* remove trailling \0 if any */
1077                                 if( p_data->i_buffer > 2 &&
1078                                     p_data->p_buffer[p_data->i_buffer -1] ==
1079                                     '\0' )
1080                                     p_data->i_buffer--;
1081
1082                                 /* Append a empty sub (sub text only) */
1083                                 if( p_data->i_length > 0 &&
1084                                     !( p_data->i_buffer == 1 &&
1085                                        *p_data->p_buffer == ' ' ) )
1086                                 {
1087                                     block_t *p_spu = block_New( p_mux, 3 );
1088
1089                                     p_spu->i_dts = p_spu->i_pts =
1090                                         p_data->i_dts + p_data->i_length;
1091                                     p_spu->i_length = 1000;
1092
1093                                     p_spu->p_buffer[0] = 0;
1094                                     p_spu->p_buffer[1] = 1;
1095                                     p_spu->p_buffer[2] = ' ';
1096
1097                                     E_(EStoPES)( p_mux->p_sout, &p_spu, p_spu,
1098                                                  p_stream->i_stream_id, 1,
1099                                                  0, 0 );
1100                                     p_data->p_next = p_spu;
1101                                 }
1102                             }
1103                             else if( p_input->p_fmt->i_codec ==
1104                                        VLC_FOURCC('t','e','l','x') )
1105                             {
1106                                 /* EN 300 472 */
1107                                 i_header_size = 0x24;
1108                                 b_data_alignment = 1;
1109                             }
1110                         }
1111                         else if( p_data->i_length < 0 ||
1112                                  p_data->i_length > 2000000 )
1113                         {
1114                             /* FIXME choose a better value, but anyway we
1115                              * should never have to do that */
1116                             p_data->i_length = 1000;
1117                         }
1118
1119                         p_stream->i_pes_length += p_data->i_length;
1120                         if( p_stream->i_pes_dts == 0 )
1121                         {
1122                             p_stream->i_pes_dts = p_data->i_dts;
1123                         }
1124
1125                         /* Convert to pes */
1126                         if( p_stream->i_stream_id == 0xa0 &&
1127                             p_data->i_pts <= 0 )
1128                         {
1129                             /* XXX yes I know, it's awfull, but it's needed,
1130                              * so don't remove it ... */
1131                             p_data->i_pts = p_data->i_dts;
1132                         }
1133                         E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
1134                                        p_stream->i_stream_id, 1,
1135                                        b_data_alignment, i_header_size );
1136
1137                         BufferChainAppend( &p_stream->chain_pes, p_data );
1138
1139                         if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
1140                             && (p_data->i_flags & BLOCK_FLAG_TYPE_I)
1141                             && !(p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME)
1142                             && (p_stream->i_pes_length > 400000) )
1143                         {
1144                             i_shaping_delay = p_stream->i_pes_length;
1145                             p_stream->b_key_frame = 1;
1146                         }
1147                     }
1148                 }
1149             }
1150
1151             if( b_ok )
1152             {
1153                 break;
1154             }
1155         }
1156
1157         /* save */
1158         i_pcr_dts      = p_pcr_stream->i_pes_dts;
1159         i_pcr_length   = p_pcr_stream->i_pes_length;
1160         p_pcr_stream->b_key_frame = 0;
1161
1162         /* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
1163         /* 2: calculate non accurate total size of muxed ts */
1164         i_packet_count = 0;
1165         for( i = 0; i < p_mux->i_nb_inputs; i++ )
1166         {
1167             ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1168             block_t *p_pes;
1169
1170             /* False for pcr stream but it will be enough to do PCR algo */
1171             for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
1172                  p_pes = p_pes->p_next )
1173             {
1174                 int i_size = p_pes->i_buffer;
1175                 if( p_pes->i_dts + p_pes->i_length >
1176                     p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1177                 {
1178                     mtime_t i_frag = p_pcr_stream->i_pes_dts +
1179                         p_pcr_stream->i_pes_length - p_pes->i_dts;
1180                     if( i_frag < 0 )
1181                     {
1182                         /* Next stream */
1183                         break;
1184                     }
1185                     i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
1186                 }
1187                 i_packet_count += ( i_size + 183 ) / 184;
1188             }
1189         }
1190         /* add overhead for PCR (not really exact) */
1191         i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
1192
1193         /* 3: mux PES into TS */
1194         BufferChainInit( &chain_ts );
1195         /* append PAT/PMT  -> FIXME with big pcr delay it won't have enough pat/pmt */
1196         GetPAT( p_mux, &chain_ts);
1197         GetPMT( p_mux, &chain_ts );
1198         i_packet_pos = 0;
1199         i_packet_count += chain_ts.i_depth;
1200         /* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
1201
1202         for( ;; )
1203         {
1204             int         i_stream;
1205             mtime_t     i_dts;
1206             ts_stream_t *p_stream;
1207             sout_input_t *p_input;
1208             block_t *p_ts;
1209             vlc_bool_t   b_pcr;
1210
1211             /* Select stream (lowest dts) */
1212             for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
1213             {
1214                 p_input = p_mux->pp_inputs[i];
1215                 p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1216
1217                 if( p_stream->i_pes_dts == 0 )
1218                 {
1219                     continue;
1220                 }
1221
1222                 if( i_stream == -1 ||
1223                     p_stream->i_pes_dts < i_dts )
1224                 {
1225                     i_stream = i;
1226                     i_dts = p_stream->i_pes_dts;
1227                 }
1228             }
1229             if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
1230             {
1231                 break;
1232             }
1233             p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1234
1235             /* do we need to issue pcr */
1236             b_pcr = VLC_FALSE;
1237             if( p_stream == p_pcr_stream &&
1238                 i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
1239                 p_sys->i_pcr + p_sys->i_pcr_delay )
1240             {
1241                 b_pcr = VLC_TRUE;
1242                 p_sys->i_pcr = i_pcr_dts + i_packet_pos *
1243                     i_pcr_length / i_packet_count;
1244             }
1245
1246             /* Build the TS packet */
1247             p_ts = TSNew( p_mux, p_stream, b_pcr );
1248             if( p_sys->csa != NULL &&
1249                  (p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) )
1250             {
1251                 p_ts->i_flags |= SOUT_BUFFER_FLAGS_PRIVATE_CSA;
1252             }
1253             i_packet_pos++;
1254
1255             /* */
1256             BufferChainAppend( &chain_ts, p_ts );
1257         }
1258
1259         /* 4: date and send */
1260         TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
1261     }
1262 }
1263
1264 static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1265                         mtime_t i_pcr_length, mtime_t i_pcr_dts )
1266 {
1267     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1268     sout_buffer_chain_t new_chain;
1269     int i_packet_count = p_chain_ts->i_depth;
1270     int i;
1271
1272     BufferChainInit( &new_chain );
1273
1274     if ( i_pcr_length <= 0 )
1275     {
1276         i_pcr_length = i_packet_count;
1277     }
1278
1279     for( i = 0; i < i_packet_count; i++ )
1280     {
1281         block_t *p_ts = BufferChainGet( p_chain_ts );
1282         mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1283
1284         BufferChainAppend( &new_chain, p_ts );
1285
1286         if( p_ts->i_dts &&
1287             p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
1288         {
1289             mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
1290             mtime_t i_cut_dts = p_ts->i_dts;
1291
1292             p_ts = BufferChainPeek( p_chain_ts );
1293             i++;
1294             i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1295             while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
1296             {
1297                 p_ts = BufferChainGet( p_chain_ts );
1298                 i_max_diff = i_new_dts - p_ts->i_dts;
1299                 i_cut_dts = p_ts->i_dts;
1300                 BufferChainAppend( &new_chain, p_ts );
1301
1302                 p_ts = BufferChainPeek( p_chain_ts );
1303                 i++;
1304                 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1305             }
1306             msg_Dbg( p_mux, "adjusting rate at "I64Fd"/"I64Fd" (%d/%d)",
1307                      i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
1308                      p_chain_ts->i_depth );
1309             if ( new_chain.i_depth )
1310                 TSDate( p_mux, &new_chain,
1311                         i_cut_dts - i_pcr_dts,
1312                         i_pcr_dts );
1313             if ( p_chain_ts->i_depth )
1314                 TSSchedule( p_mux,
1315                             p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
1316                             i_cut_dts );
1317             return;
1318         }
1319     }
1320
1321     if ( new_chain.i_depth )
1322         TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
1323 }
1324
1325 static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1326                     mtime_t i_pcr_length, mtime_t i_pcr_dts )
1327 {
1328     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1329     int i_packet_count = p_chain_ts->i_depth;
1330     int i;
1331
1332     if ( i_pcr_length / 1000 > 0 )
1333     {
1334         int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
1335                           / (uint64_t)(i_pcr_length / 1000);
1336         if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
1337         {
1338             msg_Warn( p_mux, "max bitrate exceeded at "I64Fd
1339                       " (%d bi/s for %d pkt in "I64Fd" us)",
1340                       i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1341                       i_bitrate, i_packet_count, i_pcr_length);
1342         }
1343 #if 0
1344         else
1345         {
1346             msg_Dbg( p_mux, "starting at "I64Fd
1347                      " (%d bi/s for %d packets in "I64Fd" us)",
1348                      i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1349                      i_bitrate, i_packet_count, i_pcr_length);
1350         }
1351 #endif
1352     }
1353     else
1354     {
1355         /* This shouldn't happen, but happens in some rare heavy load
1356          * and packet losses conditions. */
1357         i_pcr_length = i_packet_count;
1358     }
1359
1360     /* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
1361     for( i = 0; i < i_packet_count; i++ )
1362     {
1363         block_t *p_ts = BufferChainGet( p_chain_ts );
1364         mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1365
1366         p_ts->i_dts    = i_new_dts;
1367         p_ts->i_length = i_pcr_length / i_packet_count;
1368
1369         if( p_ts->i_flags & SOUT_BUFFER_FLAGS_PRIVATE_PCR )
1370         {
1371             /* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
1372             TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
1373         }
1374         if( p_ts->i_flags & SOUT_BUFFER_FLAGS_PRIVATE_CSA )
1375         {
1376             csa_Encrypt( p_sys->csa, p_ts->p_buffer, 0 );
1377         }
1378
1379         /* latency */
1380         p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
1381
1382         sout_AccessOutWrite( p_mux->p_access, p_ts );
1383     }
1384 }
1385
1386 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
1387                        vlc_bool_t b_pcr )
1388 {
1389     block_t *p_pes = p_stream->chain_pes.p_first;
1390     block_t *p_ts;
1391
1392     vlc_bool_t b_new_pes = VLC_FALSE;
1393     vlc_bool_t b_adaptation_field = VLC_FALSE;
1394
1395     int        i_payload_max = 184 - ( b_pcr ? 8 : 0 );
1396     int        i_payload;
1397
1398     if( p_stream->i_pes_used <= 0 )
1399     {
1400         b_new_pes = VLC_TRUE;
1401     }
1402     i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
1403                        i_payload_max );
1404
1405     if( b_pcr || i_payload < i_payload_max )
1406     {
1407         b_adaptation_field = VLC_TRUE;
1408     }
1409
1410     p_ts = block_New( p_mux, 188 );
1411     p_ts->i_dts = p_pes->i_dts;
1412
1413     p_ts->p_buffer[0] = 0x47;
1414     p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
1415         ( ( p_stream->i_pid >> 8 )&0x1f );
1416     p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1417     p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
1418         p_stream->i_continuity_counter;
1419
1420     p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1421
1422     if( b_adaptation_field )
1423     {
1424         int i;
1425
1426         if( b_pcr )
1427         {
1428             int     i_stuffing = i_payload_max - i_payload;
1429
1430             p_ts->i_flags |= SOUT_BUFFER_FLAGS_PRIVATE_PCR;
1431
1432             p_ts->p_buffer[4] = 7 + i_stuffing;
1433             p_ts->p_buffer[5] = 0x10;   /* flags */
1434             p_ts->p_buffer[6] = ( 0 )&0xff;
1435             p_ts->p_buffer[7] = ( 0 )&0xff;
1436             p_ts->p_buffer[8] = ( 0 )&0xff;
1437             p_ts->p_buffer[9] = ( 0 )&0xff;
1438             p_ts->p_buffer[10]= ( 0 )&0x80;
1439             p_ts->p_buffer[11]= 0;
1440
1441             for( i = 12; i < 12 + i_stuffing; i++ )
1442             {
1443                 p_ts->p_buffer[i] = 0xff;
1444             }
1445         }
1446         else
1447         {
1448             int i_stuffing = i_payload_max - i_payload;
1449
1450             p_ts->p_buffer[4] = i_stuffing - 1;
1451             if( i_stuffing > 1 )
1452             {
1453                 p_ts->p_buffer[5] = 0x00;
1454                 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1455                 {
1456                     p_ts->p_buffer[i] = 0xff;
1457                 }
1458             }
1459         }
1460     }
1461
1462     /* copy payload */
1463     memcpy( &p_ts->p_buffer[188 - i_payload],
1464             &p_pes->p_buffer[p_stream->i_pes_used], i_payload );
1465
1466     p_stream->i_pes_used += i_payload;
1467     p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
1468         p_stream->i_pes_used / p_pes->i_buffer;
1469     p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
1470
1471     if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
1472     {
1473         p_pes = BufferChainGet( &p_stream->chain_pes );
1474         block_Release( p_pes );
1475
1476         p_pes = p_stream->chain_pes.p_first;
1477         if( p_pes )
1478         {
1479             p_stream->i_pes_dts    = p_pes->i_dts;
1480             p_stream->i_pes_length = 0;
1481             while( p_pes )
1482             {
1483                 p_stream->i_pes_length += p_pes->i_length;
1484
1485                 p_pes = p_pes->p_next;
1486             }
1487         }
1488         else
1489         {
1490             p_stream->i_pes_dts = 0;
1491             p_stream->i_pes_length = 0;
1492         }
1493         p_stream->i_pes_used = 0;
1494     }
1495
1496     return p_ts;
1497 }
1498
1499
1500 static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
1501 {
1502     mtime_t i_pcr = 9 * i_dts / 100;
1503
1504     p_ts->p_buffer[6]  = ( i_pcr >> 25 )&0xff;
1505     p_ts->p_buffer[7]  = ( i_pcr >> 17 )&0xff;
1506     p_ts->p_buffer[8]  = ( i_pcr >> 9  )&0xff;
1507     p_ts->p_buffer[9]  = ( i_pcr >> 1  )&0xff;
1508     p_ts->p_buffer[10]|= ( i_pcr << 7  )&0x80;
1509 }
1510
1511 #if 0
1512 static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
1513                               mtime_t i_length, int i_bitrate_min,
1514                               int i_bitrate_max )
1515 {
1516     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1517     sout_buffer_chain_t s = *c;
1518
1519     int i_packets = 0;
1520     int i_packets_min = 0;
1521     int i_packets_max = 0;
1522
1523     if( i_length <= 0 )
1524     {
1525         return;
1526     }
1527
1528     i_packets     = c->i_depth;
1529     i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000  + 187 ) / 188;
1530     i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000  + 187 ) / 188;
1531
1532     if( i_packets < i_packets_min && i_packets_min > 0 )
1533     {
1534         block_t *p_pk;
1535         int i_div = ( i_packets_min - i_packets ) / i_packets;
1536         int i_mod = ( i_packets_min - i_packets ) % i_packets;
1537         int i_rest = 0;
1538
1539         /* We need to pad with null packets (pid=0x1fff)
1540          * We try to melt null packets with true packets */
1541         msg_Dbg( p_mux,
1542                  "packets=%d but min=%d -> adding %d packets of padding",
1543                  i_packets, i_packets_min, i_packets_min - i_packets );
1544
1545         BufferChainInit( c );
1546         while( ( p_pk = BufferChainGet( &s ) ) )
1547         {
1548             int i, i_null;
1549
1550             BufferChainAppend( c, p_pk );
1551
1552             i_null = i_div + ( i_rest + i_mod ) / i_packets;
1553
1554             for( i = 0; i < i_null; i++ )
1555             {
1556                 block_t *p_null;
1557
1558                 p_null = sout_BufferNew( p_mux->p_sout, 188 );
1559                 p_null->p_buffer[0] = 0x47;
1560                 p_null->p_buffer[1] = 0x1f;
1561                 p_null->p_buffer[2] = 0xff;
1562                 p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
1563                 memset( &p_null->p_buffer[4], 0, 184 );
1564                 p_sys->i_null_continuity_counter =
1565                     ( p_sys->i_null_continuity_counter + 1 ) % 16;
1566
1567                 BufferChainAppend( c, p_null );
1568             }
1569
1570             i_rest = ( i_rest + i_mod ) % i_packets;
1571         }
1572     }
1573     else if( i_packets > i_packets_max && i_packets_max > 0 )
1574     {
1575         block_t *p_pk;
1576         int           i;
1577
1578         /* Arg, we need to drop packets, I don't do something clever (like
1579          * dropping complete pid, b frames, ... ), I just get the right amount
1580          * of packets and discard the others */
1581         msg_Warn( p_mux,
1582                   "packets=%d but max=%d -> removing %d packets -> stream broken",
1583                   i_packets, i_packets_max, i_packets - i_packets_max );
1584
1585         BufferChainInit( c );
1586         for( i = 0; i < i_packets_max; i++ )
1587         {
1588             BufferChainAppend( c, BufferChainGet( &s ) );
1589         }
1590
1591         while( ( p_pk = BufferChainGet( &s ) ) )
1592         {
1593             sout_BufferDelete( p_mux->p_sout, p_pk );
1594         }
1595     }
1596 }
1597 #endif
1598
1599 static void PEStoTS( sout_instance_t *p_sout,
1600                      sout_buffer_chain_t *c, block_t *p_pes,
1601                      ts_stream_t *p_stream )
1602 {
1603     uint8_t *p_data;
1604     int     i_size;
1605     int     b_new_pes;
1606
1607     /* get PES total size */
1608     i_size = p_pes->i_buffer;
1609     p_data = p_pes->p_buffer;
1610
1611     b_new_pes = VLC_TRUE;
1612
1613     for( ;; )
1614     {
1615         int           b_adaptation_field;
1616         int           i_copy;
1617         block_t *p_ts;
1618
1619         p_ts = block_New( p_sout, 188 );
1620         /* write header
1621          * 8b   0x47    sync byte
1622          * 1b           transport_error_indicator
1623          * 1b           payload_unit_start
1624          * 1b           transport_priority
1625          * 13b          pid
1626          * 2b           transport_scrambling_control
1627          * 2b           if adaptation_field 0x03 else 0x01
1628          * 4b           continuity_counter
1629          */
1630
1631         i_copy    = __MIN( i_size, 184 );
1632         b_adaptation_field = i_size < 184 ? VLC_TRUE : VLC_FALSE;
1633
1634         p_ts->p_buffer[0] = 0x47;
1635         p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
1636                             ( ( p_stream->i_pid >> 8 )&0x1f );
1637         p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1638         p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
1639                             p_stream->i_continuity_counter;
1640
1641         b_new_pes = VLC_FALSE;
1642         p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1643
1644         if( b_adaptation_field )
1645         {
1646             int i_stuffing = 184 - i_copy;
1647             int i;
1648
1649             p_ts->p_buffer[4] = i_stuffing - 1;
1650             if( i_stuffing > 1 )
1651             {
1652                 p_ts->p_buffer[5] = 0x00;
1653                 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1654                 {
1655                     p_ts->p_buffer[i] = 0xff;
1656                 }
1657             }
1658         }
1659         /* copy payload */
1660         memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
1661         p_data += i_copy;
1662         i_size -= i_copy;
1663
1664         BufferChainAppend( c, p_ts );
1665
1666         if( i_size <= 0 )
1667         {
1668             block_t *p_next = p_pes->p_next;
1669
1670             p_pes->p_next = NULL;
1671             block_Release( p_pes );
1672             if( p_next == NULL )
1673             {
1674                 break;
1675             }
1676             b_new_pes = VLC_TRUE;
1677             p_pes = p_next;
1678             i_size = p_pes->i_buffer;
1679             p_data = p_pes->p_buffer;
1680         }
1681     }
1682
1683     return;
1684 }
1685
1686 static block_t *WritePSISection( sout_instance_t *p_sout,
1687                                        dvbpsi_psi_section_t* p_section )
1688 {
1689     block_t   *p_psi, *p_first = NULL;
1690
1691
1692     while( p_section )
1693     {
1694         int             i_size;
1695
1696         i_size =  (uint32_t)( p_section->p_payload_end - p_section->p_data )+
1697                   ( p_section->b_syntax_indicator ? 4 : 0 );
1698
1699         p_psi = block_New( p_sout, i_size + 1 );
1700         p_psi->i_pts = 0;
1701         p_psi->i_dts = 0;
1702         p_psi->i_length = 0;
1703         p_psi->i_buffer = i_size + 1;
1704
1705         p_psi->p_buffer[0] = 0; // pointer
1706         memcpy( p_psi->p_buffer + 1,
1707                 p_section->p_data,
1708                 i_size );
1709
1710         block_ChainAppend( &p_first, p_psi );
1711
1712         p_section = p_section->p_next;
1713     }
1714
1715     return( p_first );
1716 }
1717
1718 static void GetPAT( sout_mux_t *p_mux,
1719                     sout_buffer_chain_t *c )
1720 {
1721     sout_mux_sys_t       *p_sys = p_mux->p_sys;
1722     block_t        *p_pat;
1723     dvbpsi_pat_t         pat;
1724     dvbpsi_psi_section_t *p_section;
1725
1726     dvbpsi_InitPAT( &pat, p_sys->i_tsid, p_sys->i_pat_version_number,
1727                     1 );      // b_current_next
1728     /* add all program (only one) */
1729     dvbpsi_PATAddProgram( &pat,
1730                           1,                    // i_number
1731                           p_sys->pmt.i_pid );   // i_pid
1732
1733     p_section = dvbpsi_GenPATSections( &pat,
1734                                        0 );     // max program per section
1735
1736     p_pat = WritePSISection( p_mux->p_sout, p_section );
1737
1738     PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
1739
1740     dvbpsi_DeletePSISections( p_section );
1741     dvbpsi_EmptyPAT( &pat );
1742 }
1743
1744 static uint32_t GetDescriptorLength24b( int i_length )
1745 {
1746     uint32_t i_l1, i_l2, i_l3;
1747
1748     i_l1 = i_length&0x7f;
1749     i_l2 = ( i_length >> 7 )&0x7f;
1750     i_l3 = ( i_length >> 14 )&0x7f;
1751
1752     return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
1753 }
1754
1755 static void GetPMT( sout_mux_t *p_mux,
1756                     sout_buffer_chain_t *c )
1757 {
1758     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1759     block_t   *p_pmt;
1760
1761     dvbpsi_pmt_t        pmt;
1762     dvbpsi_pmt_es_t     *p_es;
1763     dvbpsi_psi_section_t *p_section;
1764
1765     int                 i_stream;
1766
1767     dvbpsi_InitPMT( &pmt,
1768                     0x01,   // program number
1769                     p_sys->i_pmt_version_number,
1770                     1,      // b_current_next
1771                     p_sys->i_pcr_pid );
1772
1773     if( p_sys->i_mpeg4_streams > 0 )
1774     {
1775         uint8_t iod[4096];
1776         bits_buffer_t bits;
1777         bits_buffer_t bits_fix_IOD;
1778
1779         /* Make valgrind happy : it works at byte level not bit one so
1780          * bit_write confuse it (but DON'T CHANGE the way that bit_write is
1781          * working (needed when fixing some bits) */
1782         memset( iod, 0, 4096 );
1783
1784         bits_initwrite( &bits, 4096, iod );
1785         // IOD_label
1786         bits_write( &bits, 8,   0x01 );
1787         // InitialObjectDescriptor
1788         bits_align( &bits );
1789         bits_write( &bits, 8,   0x02 );     // tag
1790         bits_fix_IOD = bits;    // save states to fix length later
1791         bits_write( &bits, 24,
1792             GetDescriptorLength24b( 0 ) ); // variable length (fixed later)
1793         bits_write( &bits, 10,  0x01 );     // ObjectDescriptorID
1794         bits_write( &bits, 1,   0x00 );     // URL Flag
1795         bits_write( &bits, 1,   0x00 );     // includeInlineProfileLevelFlag
1796         bits_write( &bits, 4,   0x0f );     // reserved
1797         bits_write( &bits, 8,   0xff );     // ODProfile (no ODcapability )
1798         bits_write( &bits, 8,   0xff );     // sceneProfile
1799         bits_write( &bits, 8,   0xfe );     // audioProfile (unspecified)
1800         bits_write( &bits, 8,   0xfe );     // visualProfile( // )
1801         bits_write( &bits, 8,   0xff );     // graphicProfile (no )
1802         for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1803         {
1804             ts_stream_t *p_stream;
1805             p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1806
1807             if( p_stream->i_stream_id == 0xfa ||
1808                 p_stream->i_stream_id == 0xfb ||
1809                 p_stream->i_stream_id == 0xfe )
1810             {
1811                 bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
1812                 /* ES descriptor */
1813                 bits_align( &bits );
1814                 bits_write( &bits, 8,   0x03 );     // ES_DescrTag
1815                 bits_fix_ESDescr = bits;
1816                 bits_write( &bits, 24,
1817                             GetDescriptorLength24b( 0 ) ); // variable size
1818                 bits_write( &bits, 16,  p_stream->i_es_id );
1819                 bits_write( &bits, 1,   0x00 );     // streamDependency
1820                 bits_write( &bits, 1,   0x00 );     // URL Flag
1821                 bits_write( &bits, 1,   0x00 );     // OCRStreamFlag
1822                 bits_write( &bits, 5,   0x1f );     // streamPriority
1823
1824                 // DecoderConfigDesciptor
1825                 bits_align( &bits );
1826                 bits_write( &bits, 8,   0x04 ); // DecoderConfigDescrTag
1827                 bits_fix_Decoder = bits;
1828                 bits_write( &bits, 24,  GetDescriptorLength24b( 0 ) );
1829                 if( p_stream->i_stream_type == 0x10 )
1830                 {
1831                     bits_write( &bits, 8, 0x20 );   // Visual 14496-2
1832                     bits_write( &bits, 6, 0x04 );   // VisualStream
1833                 }
1834                 else if( p_stream->i_stream_type == 0x11 )
1835                 {
1836                     bits_write( &bits, 8, 0x40 );   // Audio 14496-3
1837                     bits_write( &bits, 6, 0x05 );   // AudioStream
1838                 }
1839                 else if( p_stream->i_stream_type == 0x12 &&
1840                          p_stream->i_codec == VLC_FOURCC('s','u','b','t') )
1841                 {
1842                     bits_write( &bits, 8, 0x0B );   // Text Stream
1843                     bits_write( &bits, 6, 0x04 );   // VisualStream
1844                 }
1845                 else
1846                 {
1847                     bits_write( &bits, 8, 0x00 );
1848                     bits_write( &bits, 6, 0x00 );
1849
1850                     msg_Err( p_mux->p_sout,"Unsupported stream_type => "
1851                              "broken IOD" );
1852                 }
1853                 bits_write( &bits, 1,   0x00 );     // UpStream
1854                 bits_write( &bits, 1,   0x01 );     // reserved
1855                 bits_write( &bits, 24,  1024 * 1024 );  // bufferSizeDB
1856                 bits_write( &bits, 32,  0x7fffffff );   // maxBitrate
1857                 bits_write( &bits, 32,  0 );            // avgBitrate
1858
1859                 if( p_stream->i_decoder_specific_info > 0 )
1860                 {
1861                     int i;
1862                     // DecoderSpecificInfo
1863                     bits_align( &bits );
1864                     bits_write( &bits, 8,   0x05 ); // tag
1865                     bits_write( &bits, 24, GetDescriptorLength24b(
1866                                 p_stream->i_decoder_specific_info ) );
1867                     for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
1868                     {
1869                         bits_write( &bits, 8,
1870                             ((uint8_t*)p_stream->p_decoder_specific_info)[i] );
1871                     }
1872                 }
1873                 /* fix Decoder length */
1874                 bits_write( &bits_fix_Decoder, 24,
1875                             GetDescriptorLength24b( bits.i_data -
1876                             bits_fix_Decoder.i_data - 3 ) );
1877
1878                 /* SLConfigDescriptor : predifined (0x01) */
1879                 bits_align( &bits );
1880                 bits_write( &bits, 8,   0x06 ); // tag
1881                 bits_write( &bits, 24,  GetDescriptorLength24b( 8 ) );
1882                 bits_write( &bits, 8,   0x01 ); // predefined
1883                 bits_write( &bits, 1,   0 );   // durationFlag
1884                 bits_write( &bits, 32,  0 );   // OCRResolution
1885                 bits_write( &bits, 8,   0 );   // OCRLength
1886                 bits_write( &bits, 8,   0 );   // InstantBitrateLength
1887                 bits_align( &bits );
1888
1889                 /* fix ESDescr length */
1890                 bits_write( &bits_fix_ESDescr, 24,
1891                             GetDescriptorLength24b( bits.i_data -
1892                             bits_fix_ESDescr.i_data - 3 ) );
1893             }
1894         }
1895         bits_align( &bits );
1896         /* fix IOD length */
1897         bits_write( &bits_fix_IOD, 24,
1898                     GetDescriptorLength24b( bits.i_data -
1899                                             bits_fix_IOD.i_data - 3 ) );
1900         dvbpsi_PMTAddDescriptor( &pmt, 0x1d, bits.i_data, bits.p_data );
1901     }
1902
1903     for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1904     {
1905         ts_stream_t *p_stream;
1906
1907         p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1908
1909         p_es = dvbpsi_PMTAddES( &pmt, p_stream->i_stream_type,
1910                                 p_stream->i_pid );
1911         if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
1912         {
1913             uint8_t     es_id[2];
1914
1915             /* SL descriptor */
1916             es_id[0] = (p_stream->i_es_id >> 8)&0xff;
1917             es_id[1] = (p_stream->i_es_id)&0xff;
1918             dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
1919         }
1920         else if( p_stream->i_stream_type == 0xa0 )
1921         {
1922             uint8_t data[512];
1923             int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
1924
1925             /* private DIV3 descripor */
1926             memcpy( &data[0], &p_stream->i_bih_codec, 4 );
1927             data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
1928             data[5] = ( p_stream->i_bih_width      )&0xff;
1929             data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
1930             data[7] = ( p_stream->i_bih_height     )&0xff;
1931             data[8] = ( i_extra >> 8 )&0xff;
1932             data[9] = ( i_extra      )&0xff;
1933             if( i_extra > 0 )
1934             {
1935                 memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
1936             }
1937
1938             /* 0xa0 is private */
1939             dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
1940         }
1941         else if( p_stream->i_stream_type == 0x81 )
1942         {
1943             uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
1944
1945             /* "registration" descriptor : "AC-3" */
1946             dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
1947         }
1948         else if( p_stream->i_codec == VLC_FOURCC('d','t','s',' ') )
1949         {
1950             /* DTS registration descriptor (ETSI TS 101 154 Annex F) */
1951
1952             /* DTS format identifier, frame size 1024 - FIXME */
1953             uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
1954             dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
1955         }
1956         else if( p_stream->i_codec == VLC_FOURCC('t','e','l','x') )
1957         {
1958             dvbpsi_PMTESAddDescriptor( p_es, 0x56,
1959                                        p_stream->i_decoder_specific_info,
1960                                        p_stream->p_decoder_specific_info );
1961         }
1962 #ifdef _DVBPSI_DR_59_H_
1963         else if( p_stream->i_codec == VLC_FOURCC('d','v','b','s') )
1964         {
1965             /* DVB subtitles */
1966             dvbpsi_subtitling_dr_t descr;
1967             dvbpsi_subtitle_t sub;
1968             dvbpsi_descriptor_t *p_descr;
1969
1970             memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
1971             sub.i_subtitling_type = 0x10; /* no aspect-ratio criticality */
1972             sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
1973             sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
1974
1975             descr.i_subtitles_number = 1;
1976             descr.p_subtitle[0] = sub;
1977
1978             p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
1979             /* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
1980             dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
1981                                        p_descr->i_length, p_descr->p_data );
1982             continue;
1983         }
1984 #endif /* _DVBPSI_DR_59_H_ */
1985
1986         if( p_stream->lang[0] != 0 )
1987         {
1988             uint8_t data[4];
1989
1990             /* I construct the content myself, way faster than looking at
1991              * over complicated/mind broken libdvbpsi way */
1992             data[0] = p_stream->lang[0];
1993             data[1] = p_stream->lang[1];
1994             data[2] = p_stream->lang[2];
1995             data[3] = 0x00; /* audio type: 0x00 undefined */
1996
1997             dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4, data );
1998         }
1999     }
2000
2001     p_section = dvbpsi_GenPMTSections( &pmt );
2002
2003     p_pmt = WritePSISection( p_mux->p_sout, p_section );
2004
2005     PEStoTS( p_mux->p_sout, c, p_pmt, &p_sys->pmt );
2006
2007     dvbpsi_DeletePSISections( p_section );
2008     dvbpsi_EmptyPMT( &pmt );
2009 }