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
  83 #define SHAPING_TEXT N_("Shaping delay (ms)")
  84 #define SHAPING_LONGTEXT N_("If enabled, the TS muxer will cut the " \
  85   "stream in slices of the given duration, and ensure a constant bitrate " \
  86   "between the two boundaries. This avoids having huge bitrate peaks for " \
  87   "reference frames, in particular.")
  88 #define KEYF_TEXT N_("Use keyframes")
  89 #define KEYF_LONGTEXT N_("If enabled, and shaping is specified, " \
  90   "the TS muxer will place the boundaries at the end of I pictures. In " \
  91   "that case, the shaping duration given by the user is a worse case " \
  92   "used when no reference frame is available. This enhances the efficiency " \
  93   "of the shaping algorithm, since I frames are usually the biggest " \
  94   "frames in the stream.")
  95
  96 #define PCR_TEXT N_("PCR delay (ms)")
  97 #define PCR_LONGTEXT N_("This option allows you to set at which interval " \
  98   "PCRs (Program Clock Reference) will be sent. " \
  99   "This value should be below 100ms. (default is 30)")
 100
 101 #define DTS_TEXT N_("DTS delay (ms)")
 102 #define DTS_LONGTEXT N_("This option will delay the DTS (decoding time " \
 103   "stamps) and PTS (presentation timestamps) of the data in the " \
 104   "stream, compared to the PCRs. This allows for some buffering inside " \
 105   "the client decoder.")
 106
 107 #define ACRYPT_TEXT N_("Crypt audio")
 108 #define ACRYPT_LONGTEXT N_("Crypt audio using CSA")
 109
 110 #define CK_TEXT N_("CSA Key")
 111 #define CK_LONGTEXT N_("Defines the CSA encryption key. This must be a " \
 112   "16 char string (8 hexadecimal bytes).")
 113
 114 #define SOUT_CFG_PREFIX "sout-ts-"
 115
 116 vlc_module_begin();
 117     set_description( _("TS muxer (libdvbpsi)") );
 118     set_capability( "sout mux", 120 );
 119     add_shortcut( "ts" );
 120
 121     add_integer( SOUT_CFG_PREFIX "pid-video", 0, NULL,VPID_TEXT, VPID_LONGTEXT,
 122                                   VLC_TRUE );
 123     add_integer( SOUT_CFG_PREFIX "pid-audio", 0, NULL, APID_TEXT,
 124                  APID_LONGTEXT, VLC_TRUE );
 125
 126     add_integer( SOUT_CFG_PREFIX "shaping", 200, NULL,SHAPING_TEXT,
 127                  SHAPING_LONGTEXT, VLC_TRUE );
 128     add_bool( SOUT_CFG_PREFIX "use-key-frames", VLC_FALSE, NULL, KEYF_TEXT,
 129               KEYF_LONGTEXT, VLC_TRUE );
 130
 131     add_integer( SOUT_CFG_PREFIX "pcr", 30, NULL, PCR_TEXT, PCR_LONGTEXT,
 132                  VLC_TRUE );
 133     add_integer( SOUT_CFG_PREFIX "dts-delay", 200, NULL, DTS_TEXT,
 134                  DTS_LONGTEXT, VLC_TRUE );
 135
 136     add_bool( SOUT_CFG_PREFIX "crypt-audio", VLC_TRUE, NULL, ACRYPT_TEXT,
 137               ACRYPT_LONGTEXT, VLC_TRUE );
 138
 139     add_string( SOUT_CFG_PREFIX "csa-ck", NULL, NULL, CK_TEXT, CK_LONGTEXT,
 140                 VLC_TRUE );
 141
 142     set_callbacks( Open, Close );
 143 vlc_module_end();
 144
 145 /*****************************************************************************
 146  * Local data structures
 147  *****************************************************************************/
 148 static const char *ppsz_sout_options[] = {
 149     "pid-video", "pid-audio", "shaping", "pcr",
 150     "use-key-frames", "dts-delay", "csa-ck", "crypt-audio", NULL
 151 };
 152
 153 #define SOUT_BUFFER_FLAGS_PRIVATE_PCR  ( 1 << BLOCK_FLAG_PRIVATE_SHIFT )
 154 #define SOUT_BUFFER_FLAGS_PRIVATE_CSA  ( 2 << BLOCK_FLAG_PRIVATE_SHIFT )
 155 typedef struct
 156 {
 157     int     i_depth;
 158     block_t *p_first;
 159     block_t **pp_last;
 160 } sout_buffer_chain_t;
 161
 162 static inline void BufferChainInit  ( sout_buffer_chain_t *c )
 163 {
 164     c->i_depth = 0;
 165     c->p_first = NULL;
 166     c->pp_last = &c->p_first;
 167 }
 168 static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
 169 {
 170     *c->pp_last = b;
 171     c->i_depth++;
 172
 173     while( b->p_next )
 174     {
 175         b = b->p_next;
 176         c->i_depth++;
 177     }
 178     c->pp_last = &b->p_next;
 179 }
 180 static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
 181 {
 182     block_t *b = c->p_first;
 183
 184     if( b )
 185     {
 186         c->i_depth--;
 187         c->p_first = b->p_next;
 188
 189         if( c->p_first == NULL )
 190         {
 191             c->pp_last = &c->p_first;
 192         }
 193
 194         b->p_next = NULL;
 195     }
 196     return b;
 197 }
 198 static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
 199 {
 200     block_t *b = c->p_first;
 201
 202     return b;
 203 }
 204 static inline void BufferChainClean( sout_instance_t *p_sout,
 205                                      sout_buffer_chain_t *c )
 206 {
 207     block_t *b;
 208
 209     while( ( b = BufferChainGet( c ) ) )
 210     {
 211         block_Release( b );
 212     }
 213     BufferChainInit( c );
 214 }
 215
 216 typedef struct ts_stream_t
 217 {
 218     int             i_pid;
 219     vlc_fourcc_t    i_codec;
 220
 221     int             i_stream_type;
 222     int             i_stream_id;
 223     int             i_continuity_counter;
 224
 225     /* to be used for carriege of DIV3 */
 226     vlc_fourcc_t    i_bih_codec;
 227     int             i_bih_width, i_bih_height;
 228
 229     /* Specific to mpeg4 in mpeg2ts */
 230     int             i_es_id;
 231
 232     int             i_decoder_specific_info;
 233     uint8_t         *p_decoder_specific_info;
 234
 235     /* language is iso639-2T */
 236     uint8_t         lang[3];
 237
 238     sout_buffer_chain_t chain_pes;
 239     mtime_t             i_pes_dts;
 240     mtime_t             i_pes_length;
 241     int                 i_pes_used;
 242     vlc_bool_t          b_key_frame;
 243
 244 } ts_stream_t;
 245
 246 struct sout_mux_sys_t
 247 {
 248     int             i_pcr_pid;
 249     sout_input_t    *p_pcr_input;
 250
 251     int             i_audio_bound;
 252     int             i_video_bound;
 253
 254     int             i_pid_video;
 255     int             i_pid_audio;
 256     int             i_pid_free; // first usable pid
 257
 258     int             i_pat_version_number;
 259     ts_stream_t     pat;
 260
 261     int             i_pmt_version_number;
 262     ts_stream_t     pmt;        // Up to now only one program
 263
 264     int             i_mpeg4_streams;
 265
 266     int             i_null_continuity_counter;  /* Needed ? */
 267
 268     /* for TS building */
 269     int64_t             i_bitrate_min;
 270     int64_t             i_bitrate_max;
 271
 272     int64_t             i_shaping_delay;
 273     int64_t             i_pcr_delay;
 274
 275     int64_t             i_dts_delay;
 276
 277     vlc_bool_t          b_use_key_frames;
 278
 279     mtime_t             i_pcr;  /* last PCR emited */
 280
 281     csa_t               *csa;
 282     vlc_bool_t          b_crypt_audio;
 283 };
 284
 285
 286 /* Reserve a pid and return it */
 287 static int  AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
 288 {
 289     int i_pid;
 290     if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
 291     {
 292         i_pid = p_sys->i_pid_video;
 293         p_sys->i_pid_video = 0;
 294     }
 295     else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
 296     {
 297         i_pid = p_sys->i_pid_audio;
 298         p_sys->i_pid_audio = 0;
 299     }
 300     else
 301     {
 302         i_pid = ++p_sys->i_pid_free;
 303     }
 304     return i_pid;
 305 }
 306
 307 /*****************************************************************************
 308  * Local prototypes
 309  *****************************************************************************/
 310 static int Control  ( sout_mux_t *, int, va_list );
 311 static int AddStream( sout_mux_t *, sout_input_t * );
 312 static int DelStream( sout_mux_t *, sout_input_t * );
 313 static int Mux      ( sout_mux_t * );
 314
 315 static void TSSchedule  ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
 316                           mtime_t i_pcr_length, mtime_t i_pcr_dts );
 317 static void TSDate      ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
 318                           mtime_t i_pcr_length, mtime_t i_pcr_dts );
 319 static void GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
 320 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
 321
 322 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, vlc_bool_t b_pcr );
 323 static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
 324
 325 static void PEStoTS  ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
 326
 327 /*****************************************************************************
 328  * Open:
 329  *****************************************************************************/
 330 static int Open( vlc_object_t *p_this )
 331 {
 332     sout_mux_t          *p_mux =(sout_mux_t*)p_this;
 333     sout_mux_sys_t      *p_sys;
 334     vlc_value_t         val;
 335
 336     msg_Dbg( p_mux, "Open" );
 337     sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
 338
 339     p_sys = malloc( sizeof( sout_mux_sys_t ) );
 340
 341     p_mux->pf_control   = Control;
 342     p_mux->pf_addstream = AddStream;
 343     p_mux->pf_delstream = DelStream;
 344     p_mux->pf_mux       = Mux;
 345     p_mux->p_sys        = p_sys;
 346
 347     srand( (uint32_t)mdate() );
 348
 349     p_sys->i_audio_bound = 0;
 350     p_sys->i_video_bound = 0;
 351
 352     p_sys->i_pat_version_number = rand() % 32;
 353     p_sys->pat.i_pid = 0;
 354     p_sys->pat.i_continuity_counter = 0;
 355
 356     p_sys->i_pmt_version_number = rand() % 32;
 357     p_sys->pmt.i_pid = 0x42;
 358     p_sys->pmt.i_continuity_counter = 0;
 359
 360     p_sys->i_pid_free = 0x43;
 361
 362     var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
 363     p_sys->i_pid_video = val.i_int;
 364     if ( p_sys->i_pid_video > p_sys->i_pid_free )
 365     {
 366         p_sys->i_pid_free = p_sys->i_pid_video + 1;
 367     }
 368
 369     var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
 370     p_sys->i_pid_audio = val.i_int;
 371     if ( p_sys->i_pid_audio > p_sys->i_pid_free )
 372     {
 373         p_sys->i_pid_free = p_sys->i_pid_audio + 1;
 374     }
 375
 376     p_sys->i_pcr_pid = 0x1fff;
 377     p_sys->p_pcr_input = NULL;
 378
 379     p_sys->i_mpeg4_streams = 0;
 380
 381     p_sys->i_null_continuity_counter = 0;
 382
 383     /* Allow to create constrained stream */
 384     var_Get( p_mux, SOUT_CFG_PREFIX "bmin", &val );
 385     p_sys->i_bitrate_min = 0;/*val.i_int;*/
 386
 387     var_Get( p_mux, SOUT_CFG_PREFIX "bmax", &val );
 388     p_sys->i_bitrate_max = 0;/*val.i_int;*/
 389
 390     if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
 391         p_sys->i_bitrate_min > p_sys->i_bitrate_max )
 392     {
 393         msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
 394                  "disabling bitrate control" );
 395         p_sys->i_bitrate_min = 0;
 396         p_sys->i_bitrate_max = 0;
 397     }
 398     if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
 399     {
 400         msg_Err( p_mux, "bmin and bmax no more supported "
 401                  "(if you need them report it)" );
 402     }
 403
 404     var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
 405     p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
 406     if( p_sys->i_shaping_delay <= 0 )
 407     {
 408         msg_Err( p_mux,
 409                  "invalid shaping ("I64Fd"ms) resetting to 200ms",
 410                  p_sys->i_shaping_delay / 1000 );
 411         p_sys->i_shaping_delay = 200000;
 412     }
 413
 414     var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
 415     p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
 416     if( p_sys->i_pcr_delay <= 0 ||
 417         p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
 418     {
 419         msg_Err( p_mux,
 420                  "invalid pcr delay ("I64Fd"ms) resetting to 30ms",
 421                  p_sys->i_pcr_delay / 1000 );
 422         p_sys->i_pcr_delay = 30000;
 423     }
 424
 425     var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
 426     p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
 427
 428     msg_Dbg( p_mux, "shaping="I64Fd" pcr="I64Fd" dts_delay="I64Fd,
 429              p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
 430
 431     var_Get( p_mux, SOUT_CFG_PREFIX "use-key-frames", &val );
 432     p_sys->b_use_key_frames = val.b_bool;
 433
 434     /* for TS generation */
 435     p_sys->i_pcr    = 0;
 436
 437     p_sys->csa      = NULL;
 438     var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
 439     if( val.psz_string )
 440     {
 441         char *psz = val.psz_string;
 442
 443         /* skip 0x */
 444         if( psz[0] == '0' && ( psz[1] == 'x' || psz[1] == 'X' ) )
 445         {
 446             psz += 2;
 447         }
 448         if( strlen( psz ) != 16 )
 449         {
 450             msg_Dbg( p_mux, "invalid csa ck (it must be 16 chars long)" );
 451         }
 452         else
 453         {
 454             uint64_t i_ck = strtoll( psz, NULL, 16 );
 455             uint8_t  ck[8];
 456             int      i;
 457
 458             for( i = 0; i < 8; i++ )
 459             {
 460                 ck[i] = ( i_ck >> ( 56 - 8*i) )&0xff;
 461             }
 462
 463             msg_Dbg( p_mux, "using CSA scrambling with ck=%x:%x:%x:%x:%x:%x:%x:%x",
 464                      ck[0], ck[1], ck[2], ck[3], ck[4], ck[5], ck[6], ck[7] );
 465
 466             p_sys->csa = csa_New();
 467             csa_SetCW( p_sys->csa, ck, ck );
 468         }
 469     }
 470     if( val.psz_string ) free( val.psz_string );
 471
 472     var_Get( p_mux, SOUT_CFG_PREFIX "crypt-audio", &val );
 473     p_sys->b_crypt_audio = val.b_bool;
 474
 475     return VLC_SUCCESS;
 476 }
 477
 478 /*****************************************************************************
 479  * Close:
 480  *****************************************************************************/
 481 static void Close( vlc_object_t * p_this )
 482 {
 483     sout_mux_t          *p_mux = (sout_mux_t*)p_this;
 484     sout_mux_sys_t      *p_sys = p_mux->p_sys;
 485
 486     msg_Dbg( p_mux, "Close" );
 487     if( p_sys->csa )
 488     {
 489         csa_Delete( p_sys->csa );
 490     }
 491
 492     free( p_sys );
 493 }
 494
 495 /*****************************************************************************
 496  * Control:
 497  *****************************************************************************/
 498 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
 499 {
 500     vlc_bool_t *pb_bool;
 501     char **ppsz;
 502
 503    switch( i_query )
 504    {
 505        case MUX_CAN_ADD_STREAM_WHILE_MUXING:
 506            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 507            *pb_bool = VLC_TRUE;
 508            return VLC_SUCCESS;
 509
 510        case MUX_GET_ADD_STREAM_WAIT:
 511            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 512            *pb_bool = VLC_FALSE;
 513            return VLC_SUCCESS;
 514
 515        case MUX_GET_MIME:
 516            ppsz = (char**)va_arg( args, char ** );
 517            *ppsz = strdup( "video/mpeg" );  /* FIXME not sure */
 518            return VLC_SUCCESS;
 519
 520         default:
 521             return VLC_EGENERIC;
 522    }
 523 }
 524
 525 /*****************************************************************************
 526  * AddStream: called for each stream addition
 527  *****************************************************************************/
 528 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
 529 {
 530     sout_mux_sys_t      *p_sys = p_mux->p_sys;
 531     ts_stream_t         *p_stream;
 532
 533     p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
 534
 535     /* Init this new stream */
 536     p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
 537     p_stream->i_codec = p_input->p_fmt->i_codec;
 538     p_stream->i_continuity_counter    = 0;
 539     p_stream->i_decoder_specific_info = 0;
 540     p_stream->p_decoder_specific_info = NULL;
 541
 542     msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
 543              (char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
 544
 545     /* All others fields depand on codec */
 546     switch( p_input->p_fmt->i_cat )
 547     {
 548         case VIDEO_ES:
 549             switch( p_input->p_fmt->i_codec )
 550             {
 551                 case VLC_FOURCC( 'm', 'p','g', 'v' ):
 552                     /* TODO: do we need to check MPEG-I/II ? */
 553                     p_stream->i_stream_type = 0x02;
 554                     p_stream->i_stream_id = 0xe0;
 555                     break;
 556                 case VLC_FOURCC( 'm', 'p','4', 'v' ):
 557                     p_stream->i_stream_type = 0x10;
 558                     p_stream->i_stream_id = 0xfa;
 559                     p_sys->i_mpeg4_streams++;
 560                     p_stream->i_es_id = p_stream->i_pid;
 561                     break;
 562                 case VLC_FOURCC( 'h', '2','6', '4' ):
 563                     p_stream->i_stream_type = 0x1b;
 564                     p_stream->i_stream_id = 0xe0;
 565                     break;
 566                 /* XXX dirty dirty but somebody want that:
 567                  *     using crapy MS-codec XXX */
 568                 /* I didn't want to do that :P */
 569                 case VLC_FOURCC( 'H', '2', '6', '3' ):
 570                 case VLC_FOURCC( 'I', '2', '6', '3' ):
 571                 case VLC_FOURCC( 'W', 'M', 'V', '3' ):
 572                 case VLC_FOURCC( 'W', 'M', 'V', '2' ):
 573                 case VLC_FOURCC( 'W', 'M', 'V', '1' ):
 574                 case VLC_FOURCC( 'D', 'I', 'V', '3' ):
 575                 case VLC_FOURCC( 'D', 'I', 'V', '2' ):
 576                 case VLC_FOURCC( 'D', 'I', 'V', '1' ):
 577                 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
 578                     p_stream->i_stream_type = 0xa0; // private
 579                     p_stream->i_stream_id = 0xa0;   // beurk
 580                     p_stream->i_bih_codec  = p_input->p_fmt->i_codec;
 581                     p_stream->i_bih_width  = p_input->p_fmt->video.i_width;
 582                     p_stream->i_bih_height = p_input->p_fmt->video.i_height;
 583                     break;
 584                 default:
 585                     free( p_stream );
 586                     return VLC_EGENERIC;
 587             }
 588             p_sys->i_video_bound++;
 589             break;
 590
 591         case AUDIO_ES:
 592             switch( p_input->p_fmt->i_codec )
 593             {
 594                 case VLC_FOURCC( 'm', 'p','g', 'a' ):
 595                     p_stream->i_stream_type =
 596                         p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
 597                     p_stream->i_stream_id = 0xc0;
 598                     break;
 599                 case VLC_FOURCC( 'a', '5','2', ' ' ):
 600                     p_stream->i_stream_type = 0x81;
 601                     p_stream->i_stream_id = 0xbd;
 602                     break;
 603                 case VLC_FOURCC( 'l', 'p','c', 'm' ):
 604                     p_stream->i_stream_type = 0x83;
 605                     p_stream->i_stream_id = 0xbd;
 606                     break;
 607                 case VLC_FOURCC( 'd', 't','s', ' ' ):
 608                     p_stream->i_stream_type = 0x06;
 609                     p_stream->i_stream_id = 0xbd;
 610                     break;
 611
 612                 case VLC_FOURCC( 'm', 'p','4', 'a' ):
 613                     p_stream->i_stream_type = 0x11;
 614                     p_stream->i_stream_id = 0xfa;
 615                     p_sys->i_mpeg4_streams++;
 616                     p_stream->i_es_id = p_stream->i_pid;
 617                     break;
 618                 default:
 619                     free( p_stream );
 620                     return VLC_EGENERIC;
 621             }
 622             p_sys->i_audio_bound++;
 623             break;
 624
 625         case SPU_ES:
 626             switch( p_input->p_fmt->i_codec )
 627             {
 628                 case VLC_FOURCC( 's', 'p','u', ' ' ):
 629                     p_stream->i_stream_type = 0x82;
 630                     p_stream->i_stream_id = 0xbd;
 631                     break;
 632                 case VLC_FOURCC( 's', 'u','b', 't' ):
 633                     p_stream->i_stream_type = 0x12;
 634                     p_stream->i_stream_id = 0xfa;
 635                     p_sys->i_mpeg4_streams++;
 636                     p_stream->i_es_id = p_stream->i_pid;
 637                     break;
 638                 case VLC_FOURCC('d','v','b','s'):
 639                     p_stream->i_stream_type = 0x06;
 640                     p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
 641                     p_stream->i_stream_id = 0xa0;
 642                     break;
 643                 default:
 644                     free( p_stream );
 645                     return VLC_EGENERIC;
 646             }
 647             break;
 648
 649         default:
 650             free( p_stream );
 651             return VLC_EGENERIC;
 652     }
 653
 654     p_stream->lang[0] =
 655     p_stream->lang[1] =
 656     p_stream->lang[2] = '\0';
 657     if( p_input->p_fmt->psz_language )
 658     {
 659         char *psz = p_input->p_fmt->psz_language;
 660         const iso639_lang_t *pl = NULL;
 661
 662         if( strlen( psz ) == 2 )
 663         {
 664             pl = GetLang_1( psz );
 665         }
 666         else if( strlen( psz ) == 3 )
 667         {
 668             pl = GetLang_2B( psz );
 669             if( !strcmp( pl->psz_iso639_1, "??" ) )
 670             {
 671                 pl = GetLang_2T( psz );
 672             }
 673         }
 674         if( pl && strcmp( pl->psz_iso639_1, "??" ) )
 675         {
 676             p_stream->lang[0] = pl->psz_iso639_2T[0];
 677             p_stream->lang[1] = pl->psz_iso639_2T[1];
 678             p_stream->lang[2] = pl->psz_iso639_2T[2];
 679
 680             msg_Dbg( p_mux, "    - lang=%c%c%c",
 681                      p_stream->lang[0], p_stream->lang[1], p_stream->lang[2] );
 682         }
 683     }
 684
 685
 686     /* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
 687     p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
 688     if( p_stream->i_decoder_specific_info > 0 )
 689     {
 690         p_stream->p_decoder_specific_info =
 691             malloc( p_stream->i_decoder_specific_info );
 692         memcpy( p_stream->p_decoder_specific_info,
 693                 p_input->p_fmt->p_extra,
 694                 p_input->p_fmt->i_extra );
 695     }
 696
 697     /* Create decoder specific info for subt */
 698     if( p_stream->i_codec == VLC_FOURCC( 's', 'u','b', 't' ) )
 699     {
 700         uint8_t *p;
 701
 702         p_stream->i_decoder_specific_info = 55;
 703         p_stream->p_decoder_specific_info = p =
 704             malloc( p_stream->i_decoder_specific_info );
 705
 706         p[0] = 0x10;    /* textFormat, 0x10 for 3GPP TS 26.245 */
 707         p[1] = 0x00;    /* flags: 1b: associated video info flag
 708                                   3b: reserved
 709                                   1b: duration flag
 710                                   3b: reserved */
 711         p[2] = 52;      /* remaining size */
 712
 713         p += 3;
 714
 715         p[0] = p[1] = p[2] = p[3] = 0; p+=4;    /* display flags */
 716         *p++ = 0;  /* horizontal justification (-1: left, 0 center, 1 right) */
 717         *p++ = 1;  /* vertical   justification (-1: top, 0 center, 1 bottom) */
 718
 719         p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
 720         *p++ = 0xff;                    /* background a */
 721
 722         p[0] = p[1] = 0; p += 2;        /* text box top */
 723         p[0] = p[1] = 0; p += 2;        /* text box left */
 724         p[0] = p[1] = 0; p += 2;        /* text box bottom */
 725         p[0] = p[1] = 0; p += 2;        /* text box right */
 726
 727         p[0] = p[1] = 0; p += 2;        /* start char */
 728         p[0] = p[1] = 0; p += 2;        /* end char */
 729         p[0] = p[1] = 0; p += 2;        /* default font id */
 730
 731         *p++ = 0;                       /* font style flags */
 732         *p++ = 12;                      /* font size */
 733
 734         p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
 735         *p++ = 0x00;                    /* foreground a */
 736
 737         p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
 738         memcpy( p, "ftab", 4 ); p += 4;
 739         *p++ = 0; *p++ = 1;             /* entry count */
 740         p[0] = p[1] = 0; p += 2;        /* font id */
 741         *p++ = 9;                       /* font name length */
 742         memcpy( p, "Helvetica", 9 );    /* font name */
 743     }
 744
 745     /* Init pes chain */
 746     BufferChainInit( &p_stream->chain_pes );
 747     p_stream->i_pes_dts    = 0;
 748     p_stream->i_pes_length = 0;
 749     p_stream->i_pes_used   = 0;
 750     p_stream->b_key_frame  = 0;
 751
 752     /* We only change PMT version (PAT isn't changed) */
 753     p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
 754
 755     /* Update pcr_pid */
 756     if( p_input->p_fmt->i_cat != SPU_ES &&
 757         ( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
 758     {
 759         if( p_sys->p_pcr_input )
 760         {
 761             /* There was already a PCR stream, so clean context */
 762             /* FIXME */
 763         }
 764         p_sys->i_pcr_pid   = p_stream->i_pid;
 765         p_sys->p_pcr_input = p_input;
 766
 767         msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
 768     }
 769
 770     return VLC_SUCCESS;
 771 }
 772
 773 /*****************************************************************************
 774  * DelStream: called before a stream deletion
 775  *****************************************************************************/
 776 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
 777 {
 778     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 779     ts_stream_t     *p_stream;
 780     vlc_value_t     val;
 781
 782     p_stream = (ts_stream_t*)p_input->p_sys;
 783     msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
 784
 785     if( p_sys->i_pcr_pid == p_stream->i_pid )
 786     {
 787         int i;
 788
 789         /* Find a new pcr stream (Prefer Video Stream) */
 790         p_sys->i_pcr_pid = 0x1fff;
 791         p_sys->p_pcr_input = NULL;
 792         for( i = 0; i < p_mux->i_nb_inputs; i++ )
 793         {
 794             if( p_mux->pp_inputs[i] == p_input )
 795             {
 796                 continue;
 797             }
 798
 799             if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
 800             {
 801                 p_sys->i_pcr_pid  =
 802                     ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
 803                 p_sys->p_pcr_input= p_mux->pp_inputs[i];
 804                 break;
 805             }
 806             else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
 807                      p_sys->i_pcr_pid == 0x1fff )
 808             {
 809                 p_sys->i_pcr_pid  =
 810                     ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
 811                 p_sys->p_pcr_input= p_mux->pp_inputs[i];
 812             }
 813         }
 814         if( p_sys->p_pcr_input )
 815         {
 816             /* Empty TS buffer */
 817             /* FIXME */
 818         }
 819         msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
 820     }
 821
 822     /* Empty all data in chain_pes */
 823     BufferChainClean( p_mux->p_sout, &p_stream->chain_pes );
 824
 825     if( p_stream->p_decoder_specific_info )
 826     {
 827         free( p_stream->p_decoder_specific_info );
 828     }
 829     if( p_stream->i_stream_id == 0xfa ||
 830         p_stream->i_stream_id == 0xfb ||
 831         p_stream->i_stream_id == 0xfe )
 832     {
 833         p_sys->i_mpeg4_streams--;
 834     }
 835
 836     var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
 837     if( val.i_int > 0 )
 838     {
 839         int i_pid_video = val.i_int;
 840         if ( i_pid_video == p_stream->i_pid )
 841         {
 842             p_sys->i_pid_video = i_pid_video;
 843             msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
 844         }
 845     }
 846     var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
 847     if( val.i_int > 0 )
 848     {
 849         int i_pid_audio = val.i_int;
 850         if ( i_pid_audio == p_stream->i_pid )
 851         {
 852             p_sys->i_pid_audio = i_pid_audio;
 853             msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
 854         }
 855     }
 856     free( p_stream );
 857
 858     /* We only change PMT version (PAT isn't changed) */
 859     p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
 860
 861     return VLC_SUCCESS;
 862 }
 863
 864 /*****************************************************************************
 865  * Mux: Call each time there is new data for at least one stream
 866  *****************************************************************************
 867  *
 868  *****************************************************************************/
 869 static int Mux( sout_mux_t *p_mux )
 870 {
 871     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 872     ts_stream_t     *p_pcr_stream;
 873
 874     if( p_sys->i_pcr_pid == 0x1fff )
 875     {
 876         msg_Dbg( p_mux, "waiting for PCR streams" );
 877         msleep( 1000 );
 878         return VLC_SUCCESS;
 879     }
 880     p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
 881
 882     for( ;; )
 883     {
 884         sout_buffer_chain_t chain_ts;
 885         int                 i_packet_count;
 886         int                 i_packet_pos;
 887         mtime_t             i_pcr_dts;
 888         mtime_t             i_pcr_length;
 889         mtime_t             i_shaping_delay;
 890         int i;
 891
 892         if( p_pcr_stream->b_key_frame )
 893         {
 894             i_shaping_delay = p_pcr_stream->i_pes_length;
 895         }
 896         else
 897         {
 898             i_shaping_delay = p_sys->i_shaping_delay;
 899         }
 900
 901         /* 1: get enough PES packet for all input */
 902         for( ;; )
 903         {
 904             vlc_bool_t b_ok = VLC_TRUE;
 905             block_t *p_data;
 906
 907             /* Accumulate enough data in the pcr stream (>i_shaping_delay) */
 908             /* Accumulate enough data in all other stream ( >= length of pcr)*/
 909             for( i = 0; i < p_mux->i_nb_inputs; i++ )
 910             {
 911                 sout_input_t *p_input = p_mux->pp_inputs[i];
 912                 ts_stream_t *p_stream = (ts_stream_t*)p_input->p_sys;
 913                 int64_t i_spu_delay = 0;
 914
 915                 if( ( p_stream == p_pcr_stream &&
 916                       p_stream->i_pes_length < i_shaping_delay ) ||
 917                     p_stream->i_pes_dts + p_stream->i_pes_length <
 918                     p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
 919                 {
 920                     /* Need more data */
 921                     if( p_input->p_fifo->i_depth <= 50 )
 922                     {
 923                         if( p_input->p_fmt->i_cat == AUDIO_ES ||
 924                             p_input->p_fmt->i_cat == VIDEO_ES )
 925                         {
 926                             /* We need more data */
 927                             return VLC_SUCCESS;
 928                         }
 929                         else if( p_input->p_fifo->i_depth <= 0 )
 930                         {
 931                             /* spu, only one packet is needed */
 932                             continue;
 933                         }
 934                         else
 935                         {
 936                             /* Don't mux the SPU yet if it is too early */
 937                             block_t *p_spu = block_FifoShow( p_input->p_fifo );
 938
 939                             i_spu_delay =
 940                                 p_spu->i_dts - p_pcr_stream->i_pes_dts;
 941
 942                             if( i_spu_delay > 100000 &&
 943                                 i_spu_delay < I64C(100000000) ) continue;
 944                         }
 945                     }
 946                     b_ok = VLC_FALSE;
 947
 948                     p_data = block_FifoGet( p_input->p_fifo );
 949                     if( p_input->p_fifo->i_depth > 0 &&
 950                         p_input->p_fmt->i_cat != SPU_ES )
 951                     {
 952                         block_t *p_next = block_FifoShow( p_input->p_fifo );
 953                         p_data->i_length = p_next->i_dts - p_data->i_dts;
 954                     }
 955
 956                     if( ( p_pcr_stream->i_pes_dts > 0 &&
 957                           p_data->i_dts - 2000000 > p_pcr_stream->i_pes_dts +
 958                           p_pcr_stream->i_pes_length ) ||
 959                         p_data->i_dts < p_stream->i_pes_dts ||
 960                         ( p_stream->i_pes_dts > 0 &&
 961                           p_input->p_fmt->i_cat != SPU_ES &&
 962                           p_data->i_dts - 2000000 > p_stream->i_pes_dts +
 963                           p_stream->i_pes_length ) )
 964                     {
 965                         msg_Warn( p_mux, "packet with too strange dts "
 966                                   "(dts="I64Fd",old="I64Fd",pcr="I64Fd")",
 967                                   p_data->i_dts, p_stream->i_pes_dts,
 968                                   p_pcr_stream->i_pes_dts );
 969                         block_Release( p_data );
 970
 971                         BufferChainClean( p_mux->p_sout,
 972                                           &p_stream->chain_pes );
 973                         p_stream->i_pes_dts = 0;
 974                         p_stream->i_pes_used = 0;
 975                         p_stream->i_pes_length = 0;
 976
 977                         if( p_input->p_fmt->i_cat != SPU_ES )
 978                         {
 979                             BufferChainClean( p_mux->p_sout,
 980                                               &p_pcr_stream->chain_pes );
 981                             p_pcr_stream->i_pes_dts = 0;
 982                             p_pcr_stream->i_pes_used = 0;
 983                             p_pcr_stream->i_pes_length = 0;
 984                         }
 985                     }
 986                     else
 987                     {
 988                         if( p_input->p_fmt->i_cat == SPU_ES )
 989                         {
 990                             if( p_input->p_fmt->i_codec ==
 991                                 VLC_FOURCC('s','u','b','t') )
 992                             {
 993                                 /* Prepend header */
 994                                 p_data = block_Realloc( p_data, 2,
 995                                                         p_data->i_buffer );
 996                                 p_data->p_buffer[0] =
 997                                     ( (p_data->i_buffer - 2) >> 8) & 0xff;
 998                                 p_data->p_buffer[1] =
 999                                     ( (p_data->i_buffer - 2)     ) & 0xff;
1000
1001                                 /* remove trailling \0 if any */
1002                                 if( p_data->i_buffer > 2 &&
1003                                     p_data->p_buffer[p_data->i_buffer -1] ==
1004                                     '\0' )
1005                                     p_data->i_buffer--;
1006
1007                                 /* Append a empty sub (sub text only) */
1008                                 if( p_data->i_length > 0 &&
1009                                     !( p_data->i_buffer == 1 &&
1010                                        *p_data->p_buffer == ' ' ) )
1011                                 {
1012                                     block_t *p_spu = block_New( p_mux, 3 );
1013
1014                                     p_spu->i_dts = p_spu->i_pts =
1015                                         p_data->i_dts + p_data->i_length;
1016                                     p_spu->i_length = 1000;
1017
1018                                     p_spu->p_buffer[0] = 0;
1019                                     p_spu->p_buffer[1] = 1;
1020                                     p_spu->p_buffer[2] = ' ';
1021
1022                                     E_(EStoPES)( p_mux->p_sout, &p_spu, p_spu,
1023                                                  p_stream->i_stream_id, 1 );
1024                                     p_data->p_next = p_spu;
1025                                 }
1026                             }
1027
1028                             p_data->i_length = i_spu_delay;
1029                         }
1030                         else if( p_data->i_length < 0 ||
1031                                  p_data->i_length > 2000000 )
1032                         {
1033                             /* FIXME choose a better value, but anyway we
1034                              * should never have to do that */
1035                             p_data->i_length = 1000;
1036                         }
1037
1038                         p_stream->i_pes_length += p_data->i_length;
1039                         if( p_stream->i_pes_dts == 0 )
1040                         {
1041                             p_stream->i_pes_dts = p_data->i_dts;
1042                         }
1043
1044                         /* Convert to pes */
1045                         if( p_stream->i_stream_id == 0xa0 &&
1046                             p_data->i_pts <= 0 )
1047                         {
1048                             /* XXX yes I know, it's awfull, but it's needed,
1049                              * so don't remove it ... */
1050                             p_data->i_pts = p_data->i_dts;
1051                         }
1052                         E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
1053                                        p_stream->i_stream_id, 1 );
1054
1055                         BufferChainAppend( &p_stream->chain_pes, p_data );
1056
1057                         if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
1058                             && (p_data->i_flags & BLOCK_FLAG_TYPE_I )
1059                             && (p_stream->i_pes_length > 300000) )
1060                         {
1061                             i_shaping_delay = p_stream->i_pes_length;
1062                             p_stream->b_key_frame = 1;
1063                         }
1064                     }
1065                 }
1066             }
1067
1068             if( b_ok )
1069             {
1070                 break;
1071             }
1072         }
1073
1074         /* save */
1075         i_pcr_dts      = p_pcr_stream->i_pes_dts;
1076         i_pcr_length   = p_pcr_stream->i_pes_length;
1077         p_pcr_stream->b_key_frame = 0;
1078
1079         /* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
1080         /* 2: calculate non accurate total size of muxed ts */
1081         i_packet_count = 0;
1082         for( i = 0; i < p_mux->i_nb_inputs; i++ )
1083         {
1084             ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1085             block_t *p_pes;
1086
1087             /* False for pcr stream but it will be enough to do PCR algo */
1088             for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
1089                  p_pes = p_pes->p_next )
1090             {
1091                 int i_size = p_pes->i_buffer;
1092                 if( p_pes->i_dts + p_pes->i_length >
1093                     p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1094                 {
1095                     mtime_t i_frag = p_pcr_stream->i_pes_dts +
1096                         p_pcr_stream->i_pes_length - p_pes->i_dts;
1097                     if( i_frag < 0 )
1098                     {
1099                         /* Next stream */
1100                         break;
1101                     }
1102                     i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
1103                 }
1104                 i_packet_count += ( i_size + 183 ) / 184;
1105             }
1106         }
1107         /* add overhead for PCR (not really exact) */
1108         i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
1109
1110
1111         /* 3: mux PES into TS */
1112         BufferChainInit( &chain_ts );
1113         /* append PAT/PMT  -> FIXME with big pcr delay it won't have enough pat/pmt */
1114         GetPAT( p_mux, &chain_ts);
1115         GetPMT( p_mux, &chain_ts );
1116         i_packet_pos = 0;
1117         i_packet_count += chain_ts.i_depth;
1118         /* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
1119
1120         for( ;; )
1121         {
1122             int         i_stream;
1123             mtime_t     i_dts;
1124             ts_stream_t *p_stream;
1125             sout_input_t *p_input;
1126             block_t *p_ts;
1127             vlc_bool_t   b_pcr;
1128
1129             /* Select stream (lowest dts) */
1130             for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
1131             {
1132                 p_input = p_mux->pp_inputs[i];
1133                 p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1134
1135                 if( p_stream->i_pes_dts == 0 )
1136                 {
1137                     continue;
1138                 }
1139
1140                 if( i_stream == -1 ||
1141                     p_stream->i_pes_dts < i_dts )
1142                 {
1143                     i_stream = i;
1144                     i_dts = p_stream->i_pes_dts;
1145                 }
1146             }
1147             if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
1148             {
1149                 break;
1150             }
1151             p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1152
1153             /* do we need to issue pcr */
1154             b_pcr = VLC_FALSE;
1155             if( p_stream == p_pcr_stream &&
1156                 i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
1157                 p_sys->i_pcr + p_sys->i_pcr_delay )
1158             {
1159                 b_pcr = VLC_TRUE;
1160                 p_sys->i_pcr = i_pcr_dts + i_packet_pos *
1161                     i_pcr_length / i_packet_count;
1162             }
1163
1164             /* Build the TS packet */
1165             p_ts = TSNew( p_mux, p_stream, b_pcr );
1166             if( p_sys->csa != NULL &&
1167                  (p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) )
1168             {
1169                 p_ts->i_flags |= SOUT_BUFFER_FLAGS_PRIVATE_CSA;
1170             }
1171             i_packet_pos++;
1172
1173             /* */
1174             BufferChainAppend( &chain_ts, p_ts );
1175         }
1176
1177         /* 4: date and send */
1178         TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
1179     }
1180 }
1181
1182 static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1183                         mtime_t i_pcr_length, mtime_t i_pcr_dts )
1184 {
1185     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1186     sout_buffer_chain_t new_chain;
1187     int i_packet_count = p_chain_ts->i_depth;
1188     int i;
1189
1190     BufferChainInit( &new_chain );
1191
1192     if ( i_pcr_length <= 0 )
1193     {
1194         i_pcr_length = i_packet_count;
1195     }
1196
1197     for( i = 0; i < i_packet_count; i++ )
1198     {
1199         block_t *p_ts = BufferChainGet( p_chain_ts );
1200         mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1201
1202         BufferChainAppend( &new_chain, p_ts );
1203
1204         if( p_ts->i_dts &&
1205             p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
1206         {
1207             mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
1208             mtime_t i_cut_dts = p_ts->i_dts;
1209
1210             p_ts = BufferChainPeek( p_chain_ts );
1211             i++;
1212             i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1213             while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
1214             {
1215                 p_ts = BufferChainGet( p_chain_ts );
1216                 i_max_diff = i_new_dts - p_ts->i_dts;
1217                 i_cut_dts = p_ts->i_dts;
1218                 BufferChainAppend( &new_chain, p_ts );
1219
1220                 p_ts = BufferChainPeek( p_chain_ts );
1221                 i++;
1222                 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1223             }
1224             msg_Dbg( p_mux, "adjusting rate at "I64Fd"/"I64Fd" (%d/%d)",
1225                      i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
1226                      p_chain_ts->i_depth );
1227             if ( new_chain.i_depth )
1228                 TSDate( p_mux, &new_chain,
1229                         i_cut_dts - i_pcr_dts,
1230                         i_pcr_dts );
1231             if ( p_chain_ts->i_depth )
1232                 TSSchedule( p_mux,
1233                             p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
1234                             i_cut_dts );
1235             return;
1236         }
1237     }
1238
1239     if ( new_chain.i_depth )
1240         TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
1241 }
1242
1243 static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1244                     mtime_t i_pcr_length, mtime_t i_pcr_dts )
1245 {
1246     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1247     int i_packet_count = p_chain_ts->i_depth;
1248     int i;
1249
1250     if ( i_pcr_length / 1000 > 0 )
1251     {
1252         int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
1253                           / (uint64_t)(i_pcr_length / 1000);
1254         if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
1255         {
1256             msg_Warn( p_mux, "max bitrate exceeded at "I64Fd
1257                       " (%d bi/s for %d pkt in "I64Fd" us)",
1258                       i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1259                       i_bitrate, i_packet_count, i_pcr_length);
1260         }
1261 #if 0
1262         else
1263         {
1264             msg_Dbg( p_mux, "starting at "I64Fd
1265                      " (%d bi/s for %d packets in "I64Fd" us)",
1266                      i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1267                      i_bitrate, i_packet_count, i_pcr_length);
1268         }
1269 #endif
1270     }
1271     else
1272     {
1273         /* This shouldn't happen, but happens in some rare heavy load
1274          * and packet losses conditions. */
1275         i_pcr_length = i_packet_count;
1276     }
1277
1278     /* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
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         p_ts->i_dts    = i_new_dts;
1285         p_ts->i_length = i_pcr_length / i_packet_count;
1286
1287         if( p_ts->i_flags & SOUT_BUFFER_FLAGS_PRIVATE_PCR )
1288         {
1289             /* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
1290             TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
1291         }
1292         if( p_ts->i_flags & SOUT_BUFFER_FLAGS_PRIVATE_CSA )
1293         {
1294             csa_Encrypt( p_sys->csa, p_ts->p_buffer, 0 );
1295         }
1296
1297         /* latency */
1298         p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
1299
1300         sout_AccessOutWrite( p_mux->p_access, p_ts );
1301     }
1302 }
1303
1304 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
1305                        vlc_bool_t b_pcr )
1306 {
1307     block_t *p_pes = p_stream->chain_pes.p_first;
1308     block_t *p_ts;
1309
1310     vlc_bool_t b_new_pes = VLC_FALSE;
1311     vlc_bool_t b_adaptation_field = VLC_FALSE;
1312
1313     int        i_payload_max = 184 - ( b_pcr ? 8 : 0 );
1314     int        i_payload;
1315
1316     if( p_stream->i_pes_used <= 0 )
1317     {
1318         b_new_pes = VLC_TRUE;
1319     }
1320     i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
1321                        i_payload_max );
1322
1323     if( b_pcr || i_payload < i_payload_max )
1324     {
1325         b_adaptation_field = VLC_TRUE;
1326     }
1327
1328     p_ts = block_New( p_mux, 188 );
1329     p_ts->i_dts = p_pes->i_dts;
1330
1331     p_ts->p_buffer[0] = 0x47;
1332     p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
1333         ( ( p_stream->i_pid >> 8 )&0x1f );
1334     p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1335     p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
1336         p_stream->i_continuity_counter;
1337
1338     p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1339
1340     if( b_adaptation_field )
1341     {
1342         int i;
1343
1344         if( b_pcr )
1345         {
1346             int     i_stuffing = i_payload_max - i_payload;
1347
1348             p_ts->i_flags |= SOUT_BUFFER_FLAGS_PRIVATE_PCR;
1349
1350             p_ts->p_buffer[4] = 7 + i_stuffing;
1351             p_ts->p_buffer[5] = 0x10;   /* flags */
1352             p_ts->p_buffer[6] = ( 0 )&0xff;
1353             p_ts->p_buffer[7] = ( 0 )&0xff;
1354             p_ts->p_buffer[8] = ( 0 )&0xff;
1355             p_ts->p_buffer[9] = ( 0 )&0xff;
1356             p_ts->p_buffer[10]= ( 0 )&0x80;
1357             p_ts->p_buffer[11]= 0;
1358
1359             for( i = 12; i < 12 + i_stuffing; i++ )
1360             {
1361                 p_ts->p_buffer[i] = 0xff;
1362             }
1363         }
1364         else
1365         {
1366             int i_stuffing = i_payload_max - i_payload;
1367
1368             p_ts->p_buffer[4] = i_stuffing - 1;
1369             if( i_stuffing > 1 )
1370             {
1371                 p_ts->p_buffer[5] = 0x00;
1372                 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1373                 {
1374                     p_ts->p_buffer[i] = 0xff;
1375                 }
1376             }
1377         }
1378     }
1379
1380     /* copy payload */
1381     memcpy( &p_ts->p_buffer[188 - i_payload],
1382             &p_pes->p_buffer[p_stream->i_pes_used], i_payload );
1383
1384     p_stream->i_pes_used += i_payload;
1385     p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
1386         p_stream->i_pes_used / p_pes->i_buffer;
1387     p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
1388
1389     if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
1390     {
1391         p_pes = BufferChainGet( &p_stream->chain_pes );
1392         block_Release( p_pes );
1393
1394         p_pes = p_stream->chain_pes.p_first;
1395         if( p_pes )
1396         {
1397             p_stream->i_pes_dts    = p_pes->i_dts;
1398             p_stream->i_pes_length = 0;
1399             while( p_pes )
1400             {
1401                 p_stream->i_pes_length += p_pes->i_length;
1402
1403                 p_pes = p_pes->p_next;
1404             }
1405         }
1406         else
1407         {
1408             p_stream->i_pes_dts = 0;
1409             p_stream->i_pes_length = 0;
1410         }
1411         p_stream->i_pes_used = 0;
1412     }
1413
1414     return p_ts;
1415 }
1416
1417
1418 static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
1419 {
1420     mtime_t i_pcr = 9 * i_dts / 100;
1421
1422     p_ts->p_buffer[6]  = ( i_pcr >> 25 )&0xff;
1423     p_ts->p_buffer[7]  = ( i_pcr >> 17 )&0xff;
1424     p_ts->p_buffer[8]  = ( i_pcr >> 9  )&0xff;
1425     p_ts->p_buffer[9]  = ( i_pcr >> 1  )&0xff;
1426     p_ts->p_buffer[10]|= ( i_pcr << 7  )&0x80;
1427 }
1428
1429 #if 0
1430 static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
1431                               mtime_t i_length, int i_bitrate_min,
1432                               int i_bitrate_max )
1433 {
1434     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1435     sout_buffer_chain_t s = *c;
1436
1437     int i_packets = 0;
1438     int i_packets_min = 0;
1439     int i_packets_max = 0;
1440
1441     if( i_length <= 0 )
1442     {
1443         return;
1444     }
1445
1446     i_packets     = c->i_depth;
1447     i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000  + 187 ) / 188;
1448     i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000  + 187 ) / 188;
1449
1450     if( i_packets < i_packets_min && i_packets_min > 0 )
1451     {
1452         block_t *p_pk;
1453         int i_div = ( i_packets_min - i_packets ) / i_packets;
1454         int i_mod = ( i_packets_min - i_packets ) % i_packets;
1455         int i_rest = 0;
1456
1457         /* We need to pad with null packets (pid=0x1fff)
1458          * We try to melt null packets with true packets */
1459         msg_Dbg( p_mux,
1460                  "packets=%d but min=%d -> adding %d packets of padding",
1461                  i_packets, i_packets_min, i_packets_min - i_packets );
1462
1463         BufferChainInit( c );
1464         while( ( p_pk = BufferChainGet( &s ) ) )
1465         {
1466             int i, i_null;
1467
1468             BufferChainAppend( c, p_pk );
1469
1470             i_null = i_div + ( i_rest + i_mod ) / i_packets;
1471
1472             for( i = 0; i < i_null; i++ )
1473             {
1474                 block_t *p_null;
1475
1476                 p_null = sout_BufferNew( p_mux->p_sout, 188 );
1477                 p_null->p_buffer[0] = 0x47;
1478                 p_null->p_buffer[1] = 0x1f;
1479                 p_null->p_buffer[2] = 0xff;
1480                 p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
1481                 memset( &p_null->p_buffer[4], 0, 184 );
1482                 p_sys->i_null_continuity_counter =
1483                     ( p_sys->i_null_continuity_counter + 1 ) % 16;
1484
1485                 BufferChainAppend( c, p_null );
1486             }
1487
1488             i_rest = ( i_rest + i_mod ) % i_packets;
1489         }
1490     }
1491     else if( i_packets > i_packets_max && i_packets_max > 0 )
1492     {
1493         block_t *p_pk;
1494         int           i;
1495
1496         /* Arg, we need to drop packets, I don't do something clever (like
1497          * dropping complete pid, b frames, ... ), I just get the right amount
1498          * of packets and discard the others */
1499         msg_Warn( p_mux,
1500                   "packets=%d but max=%d -> removing %d packets -> stream broken",
1501                   i_packets, i_packets_max, i_packets - i_packets_max );
1502
1503         BufferChainInit( c );
1504         for( i = 0; i < i_packets_max; i++ )
1505         {
1506             BufferChainAppend( c, BufferChainGet( &s ) );
1507         }
1508
1509         while( ( p_pk = BufferChainGet( &s ) ) )
1510         {
1511             sout_BufferDelete( p_mux->p_sout, p_pk );
1512         }
1513     }
1514 }
1515 #endif
1516
1517 static void PEStoTS( sout_instance_t *p_sout,
1518                      sout_buffer_chain_t *c, block_t *p_pes,
1519                      ts_stream_t *p_stream )
1520 {
1521     uint8_t *p_data;
1522     int     i_size;
1523     int     b_new_pes;
1524
1525     /* get PES total size */
1526     i_size = p_pes->i_buffer;
1527     p_data = p_pes->p_buffer;
1528
1529     b_new_pes = VLC_TRUE;
1530
1531     for( ;; )
1532     {
1533         int           b_adaptation_field;
1534         int           i_copy;
1535         block_t *p_ts;
1536
1537         p_ts = block_New( p_sout, 188 );
1538         /* write header
1539          * 8b   0x47    sync byte
1540          * 1b           transport_error_indicator
1541          * 1b           payload_unit_start
1542          * 1b           transport_priority
1543          * 13b          pid
1544          * 2b           transport_scrambling_control
1545          * 2b           if adaptation_field 0x03 else 0x01
1546          * 4b           continuity_counter
1547          */
1548
1549         i_copy    = __MIN( i_size, 184 );
1550         b_adaptation_field = i_size < 184 ? VLC_TRUE : VLC_FALSE;
1551
1552         p_ts->p_buffer[0] = 0x47;
1553         p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
1554                             ( ( p_stream->i_pid >> 8 )&0x1f );
1555         p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1556         p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
1557                             p_stream->i_continuity_counter;
1558
1559         b_new_pes = VLC_FALSE;
1560         p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1561
1562         if( b_adaptation_field )
1563         {
1564             int i_stuffing = 184 - i_copy;
1565             int i;
1566
1567             p_ts->p_buffer[4] = i_stuffing - 1;
1568             if( i_stuffing > 1 )
1569             {
1570                 p_ts->p_buffer[5] = 0x00;
1571                 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1572                 {
1573                     p_ts->p_buffer[i] = 0xff;
1574                 }
1575             }
1576         }
1577         /* copy payload */
1578         memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
1579         p_data += i_copy;
1580         i_size -= i_copy;
1581
1582         BufferChainAppend( c, p_ts );
1583
1584         if( i_size <= 0 )
1585         {
1586             block_t *p_next = p_pes->p_next;
1587
1588             p_pes->p_next = NULL;
1589             block_Release( p_pes );
1590             if( p_next == NULL )
1591             {
1592                 break;
1593             }
1594             b_new_pes = VLC_TRUE;
1595             p_pes = p_next;
1596             i_size = p_pes->i_buffer;
1597             p_data = p_pes->p_buffer;
1598         }
1599     }
1600
1601     return;
1602 }
1603
1604 static block_t *WritePSISection( sout_instance_t *p_sout,
1605                                        dvbpsi_psi_section_t* p_section )
1606 {
1607     block_t   *p_psi, *p_first = NULL;
1608
1609
1610     while( p_section )
1611     {
1612         int             i_size;
1613
1614         i_size =  (uint32_t)( p_section->p_payload_end - p_section->p_data )+
1615                   ( p_section->b_syntax_indicator ? 4 : 0 );
1616
1617         p_psi = block_New( p_sout, i_size + 1 );
1618         p_psi->i_pts = 0;
1619         p_psi->i_dts = 0;
1620         p_psi->i_length = 0;
1621         p_psi->i_buffer = i_size + 1;
1622
1623         p_psi->p_buffer[0] = 0; // pointer
1624         memcpy( p_psi->p_buffer + 1,
1625                 p_section->p_data,
1626                 i_size );
1627
1628         block_ChainAppend( &p_first, p_psi );
1629
1630         p_section = p_section->p_next;
1631     }
1632
1633     return( p_first );
1634 }
1635
1636 static void GetPAT( sout_mux_t *p_mux,
1637                     sout_buffer_chain_t *c )
1638 {
1639     sout_mux_sys_t       *p_sys = p_mux->p_sys;
1640     block_t        *p_pat;
1641     dvbpsi_pat_t         pat;
1642     dvbpsi_psi_section_t *p_section;
1643
1644     dvbpsi_InitPAT( &pat,
1645                     0x01,    // i_ts_id
1646                     p_sys->i_pat_version_number,
1647                     1 );      // b_current_next
1648     /* add all program (only one) */
1649     dvbpsi_PATAddProgram( &pat,
1650                           1,                    // i_number
1651                           p_sys->pmt.i_pid );   // i_pid
1652
1653     p_section = dvbpsi_GenPATSections( &pat,
1654                                        0 );     // max program per section
1655
1656     p_pat = WritePSISection( p_mux->p_sout, p_section );
1657
1658     PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
1659
1660     dvbpsi_DeletePSISections( p_section );
1661     dvbpsi_EmptyPAT( &pat );
1662 }
1663
1664 static uint32_t GetDescriptorLength24b( int i_length )
1665 {
1666     uint32_t i_l1, i_l2, i_l3;
1667
1668     i_l1 = i_length&0x7f;
1669     i_l2 = ( i_length >> 7 )&0x7f;
1670     i_l3 = ( i_length >> 14 )&0x7f;
1671
1672     return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
1673 }
1674
1675 static void GetPMT( sout_mux_t *p_mux,
1676                     sout_buffer_chain_t *c )
1677 {
1678     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1679     block_t   *p_pmt;
1680
1681     dvbpsi_pmt_t        pmt;
1682     dvbpsi_pmt_es_t     *p_es;
1683     dvbpsi_psi_section_t *p_section;
1684
1685     int                 i_stream;
1686
1687     dvbpsi_InitPMT( &pmt,
1688                     0x01,   // program number
1689                     p_sys->i_pmt_version_number,
1690                     1,      // b_current_next
1691                     p_sys->i_pcr_pid );
1692
1693     if( p_sys->i_mpeg4_streams > 0 )
1694     {
1695         uint8_t iod[4096];
1696         bits_buffer_t bits;
1697         bits_buffer_t bits_fix_IOD;
1698
1699         /* Make valgrind happy : it works at byte level not bit one so
1700          * bit_write confuse it (but DON'T CHANGE the way that bit_write is
1701          * working (needed when fixing some bits) */
1702         memset( iod, 0, 4096 );
1703
1704         bits_initwrite( &bits, 4096, iod );
1705         // IOD_label
1706         bits_write( &bits, 8,   0x01 );
1707         // InitialObjectDescriptor
1708         bits_align( &bits );
1709         bits_write( &bits, 8,   0x02 );     // tag
1710         bits_fix_IOD = bits;    // save states to fix length later
1711         bits_write( &bits, 24,
1712             GetDescriptorLength24b( 0 ) ); // variable length (fixed later)
1713         bits_write( &bits, 10,  0x01 );     // ObjectDescriptorID
1714         bits_write( &bits, 1,   0x00 );     // URL Flag
1715         bits_write( &bits, 1,   0x00 );     // includeInlineProfileLevelFlag
1716         bits_write( &bits, 4,   0x0f );     // reserved
1717         bits_write( &bits, 8,   0xff );     // ODProfile (no ODcapability )
1718         bits_write( &bits, 8,   0xff );     // sceneProfile
1719         bits_write( &bits, 8,   0xfe );     // audioProfile (unspecified)
1720         bits_write( &bits, 8,   0xfe );     // visualProfile( // )
1721         bits_write( &bits, 8,   0xff );     // graphicProfile (no )
1722         for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1723         {
1724             ts_stream_t *p_stream;
1725             p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1726
1727             if( p_stream->i_stream_id == 0xfa ||
1728                 p_stream->i_stream_id == 0xfb ||
1729                 p_stream->i_stream_id == 0xfe )
1730             {
1731                 bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
1732                 /* ES descriptor */
1733                 bits_align( &bits );
1734                 bits_write( &bits, 8,   0x03 );     // ES_DescrTag
1735                 bits_fix_ESDescr = bits;
1736                 bits_write( &bits, 24,
1737                             GetDescriptorLength24b( 0 ) ); // variable size
1738                 bits_write( &bits, 16,  p_stream->i_es_id );
1739                 bits_write( &bits, 1,   0x00 );     // streamDependency
1740                 bits_write( &bits, 1,   0x00 );     // URL Flag
1741                 bits_write( &bits, 1,   0x00 );     // OCRStreamFlag
1742                 bits_write( &bits, 5,   0x1f );     // streamPriority
1743
1744                 // DecoderConfigDesciptor
1745                 bits_align( &bits );
1746                 bits_write( &bits, 8,   0x04 ); // DecoderConfigDescrTag
1747                 bits_fix_Decoder = bits;
1748                 bits_write( &bits, 24,  GetDescriptorLength24b( 0 ) );
1749                 if( p_stream->i_stream_type == 0x10 )
1750                 {
1751                     bits_write( &bits, 8, 0x20 );   // Visual 14496-2
1752                     bits_write( &bits, 6, 0x04 );   // VisualStream
1753                 }
1754                 else if( p_stream->i_stream_type == 0x11 )
1755                 {
1756                     bits_write( &bits, 8, 0x40 );   // Audio 14496-3
1757                     bits_write( &bits, 6, 0x05 );   // AudioStream
1758                 }
1759                 else if( p_stream->i_stream_type == 0x12 &&
1760                          p_stream->i_codec == VLC_FOURCC('s','u','b','t') )
1761                 {
1762                     bits_write( &bits, 8, 0x0B );   // Text Stream
1763                     bits_write( &bits, 6, 0x04 );   // VisualStream
1764                 }
1765                 else
1766                 {
1767                     bits_write( &bits, 8, 0x00 );
1768                     bits_write( &bits, 6, 0x00 );
1769
1770                     msg_Err( p_mux->p_sout,"Unsupported stream_type => "
1771                              "broken IOD" );
1772                 }
1773                 bits_write( &bits, 1,   0x00 );     // UpStream
1774                 bits_write( &bits, 1,   0x01 );     // reserved
1775                 bits_write( &bits, 24,  1024 * 1024 );  // bufferSizeDB
1776                 bits_write( &bits, 32,  0x7fffffff );   // maxBitrate
1777                 bits_write( &bits, 32,  0 );            // avgBitrate
1778
1779                 if( p_stream->i_decoder_specific_info > 0 )
1780                 {
1781                     int i;
1782                     // DecoderSpecificInfo
1783                     bits_align( &bits );
1784                     bits_write( &bits, 8,   0x05 ); // tag
1785                     bits_write( &bits, 24, GetDescriptorLength24b(
1786                                 p_stream->i_decoder_specific_info ) );
1787                     for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
1788                     {
1789                         bits_write( &bits, 8,
1790                             ((uint8_t*)p_stream->p_decoder_specific_info)[i] );
1791                     }
1792                 }
1793                 /* fix Decoder length */
1794                 bits_write( &bits_fix_Decoder, 24,
1795                             GetDescriptorLength24b( bits.i_data -
1796                             bits_fix_Decoder.i_data - 3 ) );
1797
1798                 /* SLConfigDescriptor : predifined (0x01) */
1799                 bits_align( &bits );
1800                 bits_write( &bits, 8,   0x06 ); // tag
1801                 bits_write( &bits, 24,  GetDescriptorLength24b( 8 ) );
1802                 bits_write( &bits, 8,   0x01 ); // predefined
1803                 bits_write( &bits, 1,   0 );   // durationFlag
1804                 bits_write( &bits, 32,  0 );   // OCRResolution
1805                 bits_write( &bits, 8,   0 );   // OCRLength
1806                 bits_write( &bits, 8,   0 );   // InstantBitrateLength
1807                 bits_align( &bits );
1808
1809                 /* fix ESDescr length */
1810                 bits_write( &bits_fix_ESDescr, 24,
1811                             GetDescriptorLength24b( bits.i_data -
1812                             bits_fix_ESDescr.i_data - 3 ) );
1813             }
1814         }
1815         bits_align( &bits );
1816         /* fix IOD length */
1817         bits_write( &bits_fix_IOD, 24,
1818                     GetDescriptorLength24b( bits.i_data -
1819                                             bits_fix_IOD.i_data - 3 ) );
1820         dvbpsi_PMTAddDescriptor( &pmt, 0x1d, bits.i_data, bits.p_data );
1821     }
1822
1823     for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1824     {
1825         ts_stream_t *p_stream;
1826
1827         p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1828
1829         p_es = dvbpsi_PMTAddES( &pmt, p_stream->i_stream_type,
1830                                 p_stream->i_pid );
1831         if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
1832         {
1833             uint8_t     es_id[2];
1834
1835             /* SL descriptor */
1836             es_id[0] = (p_stream->i_es_id >> 8)&0xff;
1837             es_id[1] = (p_stream->i_es_id)&0xff;
1838             dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
1839         }
1840         else if( p_stream->i_stream_type == 0xa0 )
1841         {
1842             uint8_t data[512];
1843             int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
1844
1845             /* private DIV3 descripor */
1846             memcpy( &data[0], &p_stream->i_bih_codec, 4 );
1847             data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
1848             data[5] = ( p_stream->i_bih_width      )&0xff;
1849             data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
1850             data[7] = ( p_stream->i_bih_height     )&0xff;
1851             data[8] = ( i_extra >> 8 )&0xff;
1852             data[9] = ( i_extra      )&0xff;
1853             if( i_extra > 0 )
1854             {
1855                 memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
1856             }
1857
1858             /* 0xa0 is private */
1859             dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
1860         }
1861         else if( p_stream->i_stream_type == 0x81 )
1862         {
1863             uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
1864
1865             /* "registration" descriptor : "AC-3" */
1866             dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
1867         }
1868         else if( p_stream->i_codec == VLC_FOURCC('d','t','s',' ') )
1869         {
1870             /* DTS registration descriptor (ETSI TS 101 154 Annex F) */
1871
1872             /* DTS format identifier, frame size 1024 - FIXME */
1873             uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
1874             dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
1875         }
1876 #ifdef _DVBPSI_DR_59_H_
1877         else if( p_stream->i_codec == VLC_FOURCC('d','v','b','s') )
1878         {
1879             /* DVB subtitles */
1880             dvbpsi_subtitling_dr_t descr;
1881             dvbpsi_subtitle_t sub;
1882             dvbpsi_descriptor_t *p_descr;
1883
1884             memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
1885             sub.i_subtitling_type = 0;
1886             sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
1887             sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
1888
1889             descr.i_subtitles_number = 1;
1890             descr.p_subtitle[0] = sub;
1891
1892             p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
1893             /* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
1894             dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
1895                                        p_descr->i_length, p_descr->p_data );
1896             continue;
1897         }
1898 #endif /* _DVBPSI_DR_59_H_ */
1899
1900         if( p_stream->lang[0] != 0 )
1901         {
1902             uint8_t data[4];
1903
1904             /* I construct the content myself, way faster than looking at
1905              * over complicated/mind broken libdvbpsi way */
1906             data[0] = p_stream->lang[0];
1907             data[1] = p_stream->lang[1];
1908             data[2] = p_stream->lang[2];
1909             data[3] = 0x00; /* audio type: 0x00 undefined */
1910
1911             dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4, data );
1912         }
1913     }
1914
1915     p_section = dvbpsi_GenPMTSections( &pmt );
1916
1917     p_pmt = WritePSISection( p_mux->p_sout, p_section );
1918
1919     PEStoTS( p_mux->p_sout, c, p_pmt, &p_sys->pmt );
1920
1921     dvbpsi_DeletePSISections( p_section );
1922     dvbpsi_EmptyPMT( &pmt );
1923 }