* all: added a new access_filter module: record + one hotkey to start/stop
[vlc.git] / 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_("Assigns 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 #define PMTPROG_TEXT N_("PMT Program number")
89 #define PMTPROG_LONGTEXT N_("Assigns a program number to the PMT.")
90
91 #define PID_TEXT N_("Set PID to id of ES")
92 #define PID_LONGTEXT N_("set PID to id of es")
93
94 #define SHAPING_TEXT N_("Shaping delay (ms)")
95 #define SHAPING_LONGTEXT N_("If enabled, the TS muxer will cut the " \
96   "stream in slices of the given duration, and ensure a constant bitrate " \
97   "between the two boundaries. This avoids having huge bitrate peaks for " \
98   "reference frames, in particular.")
99 #define KEYF_TEXT N_("Use keyframes")
100 #define KEYF_LONGTEXT N_("If enabled, and shaping is specified, " \
101   "the TS muxer will place the boundaries at the end of I pictures. In " \
102   "that case, the shaping duration given by the user is a worse case " \
103   "used when no reference frame is available. This enhances the efficiency " \
104   "of the shaping algorithm, since I frames are usually the biggest " \
105   "frames in the stream.")
106
107 #define PCR_TEXT N_("PCR delay (ms)")
108 #define PCR_LONGTEXT N_("This option allows you to set at which interval " \
109   "PCRs (Program Clock Reference) will be sent. " \
110   "This value should be below 100ms. (default is 30)")
111
112 #define BMIN_TEXT N_( "Minimum B (deprecated)")
113 #define BMIN_LONGTEXT N_( "This setting is deprecated and not used anymore" )
114
115 #define BMAX_TEXT N_( "Maximum B (deprecated)")
116 #define BMAX_LONGTEXT N_( "This setting is deprecated and not used anymore")
117
118 #define DTS_TEXT N_("DTS delay (ms)")
119 #define DTS_LONGTEXT N_("This option will delay the DTS (decoding time " \
120   "stamps) and PTS (presentation timestamps) of the data in the " \
121   "stream, compared to the PCRs. This allows for some buffering inside " \
122   "the client decoder.")
123
124 #define ACRYPT_TEXT N_("Crypt audio")
125 #define ACRYPT_LONGTEXT N_("Crypt audio using CSA")
126
127 #define CK_TEXT N_("CSA Key")
128 #define CK_LONGTEXT N_("Defines the CSA encryption key. This must be a " \
129   "16 char string (8 hexadecimal bytes).")
130
131 #define SOUT_CFG_PREFIX "sout-ts-"
132
133 vlc_module_begin();
134     set_description( _("TS muxer (libdvbpsi)") );
135     set_shortname( "MPEG-TS");
136     set_category( CAT_SOUT );
137     set_subcategory( SUBCAT_SOUT_MUX );
138     set_capability( "sout mux", 120 );
139     add_shortcut( "ts" );
140
141     add_integer( SOUT_CFG_PREFIX "pid-video", 0, NULL,VPID_TEXT, VPID_LONGTEXT,
142                                   VLC_TRUE );
143     add_integer( SOUT_CFG_PREFIX "pid-audio", 0, NULL, APID_TEXT,
144                  APID_LONGTEXT, VLC_TRUE );
145     add_integer( SOUT_CFG_PREFIX "pid-spu", 0, NULL, SPUPID_TEXT,
146                  SPUPID_LONGTEXT, VLC_TRUE );
147     add_integer( SOUT_CFG_PREFIX "pid-pmt", 0, NULL, PMTPID_TEXT,
148                  PMTPID_LONGTEXT, VLC_TRUE );
149     add_integer( SOUT_CFG_PREFIX "tsid", 0, NULL, TSID_TEXT,
150                  TSID_LONGTEXT, VLC_TRUE );
151     add_integer( SOUT_CFG_PREFIX "program-pmt", 1, NULL, PMTPROG_TEXT,
152                  PMTPROG_LONGTEXT, VLC_TRUE );
153     add_bool( SOUT_CFG_PREFIX "es-id-pid", 0, NULL, PID_TEXT, PID_LONGTEXT,
154               VLC_TRUE );
155
156     add_integer( SOUT_CFG_PREFIX "shaping", 200, NULL,SHAPING_TEXT,
157                  SHAPING_LONGTEXT, VLC_TRUE );
158     add_bool( SOUT_CFG_PREFIX "use-key-frames", VLC_FALSE, NULL, KEYF_TEXT,
159               KEYF_LONGTEXT, VLC_TRUE );
160
161     add_integer( SOUT_CFG_PREFIX "pcr", 30, NULL, PCR_TEXT, PCR_LONGTEXT,
162                  VLC_TRUE );
163     add_integer( SOUT_CFG_PREFIX "bmin", 0, NULL, BMIN_TEXT, BMIN_LONGTEXT,
164                  VLC_TRUE );
165     add_integer( SOUT_CFG_PREFIX "bmax", 0, NULL, BMAX_TEXT, BMAX_LONGTEXT,
166                  VLC_TRUE );
167     add_integer( SOUT_CFG_PREFIX "dts-delay", 200, NULL, DTS_TEXT,
168                  DTS_LONGTEXT, VLC_TRUE );
169
170     add_bool( SOUT_CFG_PREFIX "crypt-audio", VLC_TRUE, NULL, ACRYPT_TEXT,
171               ACRYPT_LONGTEXT, VLC_TRUE );
172
173     add_string( SOUT_CFG_PREFIX "csa-ck", NULL, NULL, CK_TEXT, CK_LONGTEXT,
174                 VLC_TRUE );
175
176     set_callbacks( Open, Close );
177 vlc_module_end();
178
179 /*****************************************************************************
180  * Local data structures
181  *****************************************************************************/
182 static const char *ppsz_sout_options[] = {
183     "pid-video", "pid-audio", "pid-spu", "pid-pmt", "tsid", "program-pmt", "es-id-pid",
184     "shaping", "pcr", "bmin", "bmax", "use-key-frames", "dts-delay",
185     "csa-ck", "crypt-audio",
186     NULL
187 };
188
189 typedef struct
190 {
191     int     i_depth;
192     block_t *p_first;
193     block_t **pp_last;
194 } sout_buffer_chain_t;
195
196 static inline void BufferChainInit  ( sout_buffer_chain_t *c )
197 {
198     c->i_depth = 0;
199     c->p_first = NULL;
200     c->pp_last = &c->p_first;
201 }
202 static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
203 {
204     *c->pp_last = b;
205     c->i_depth++;
206
207     while( b->p_next )
208     {
209         b = b->p_next;
210         c->i_depth++;
211     }
212     c->pp_last = &b->p_next;
213 }
214 static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
215 {
216     block_t *b = c->p_first;
217
218     if( b )
219     {
220         c->i_depth--;
221         c->p_first = b->p_next;
222
223         if( c->p_first == NULL )
224         {
225             c->pp_last = &c->p_first;
226         }
227
228         b->p_next = NULL;
229     }
230     return b;
231 }
232 static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
233 {
234     block_t *b = c->p_first;
235
236     return b;
237 }
238 static inline void BufferChainClean( sout_instance_t *p_sout,
239                                      sout_buffer_chain_t *c )
240 {
241     block_t *b;
242
243     while( ( b = BufferChainGet( c ) ) )
244     {
245         block_Release( b );
246     }
247     BufferChainInit( c );
248 }
249
250 typedef struct ts_stream_t
251 {
252     int             i_pid;
253     vlc_fourcc_t    i_codec;
254
255     int             i_stream_type;
256     int             i_stream_id;
257     int             i_continuity_counter;
258
259     /* to be used for carriege of DIV3 */
260     vlc_fourcc_t    i_bih_codec;
261     int             i_bih_width, i_bih_height;
262
263     /* Specific to mpeg4 in mpeg2ts */
264     int             i_es_id;
265
266     int             i_decoder_specific_info;
267     uint8_t         *p_decoder_specific_info;
268
269     /* language is iso639-2T */
270     uint8_t         lang[3];
271
272     sout_buffer_chain_t chain_pes;
273     mtime_t             i_pes_dts;
274     mtime_t             i_pes_length;
275     int                 i_pes_used;
276     vlc_bool_t          b_key_frame;
277
278 } ts_stream_t;
279
280 struct sout_mux_sys_t
281 {
282     int             i_pcr_pid;
283     sout_input_t    *p_pcr_input;
284
285     int             i_audio_bound;
286     int             i_video_bound;
287
288     vlc_bool_t      b_es_id_pid;
289     int             i_pid_video;
290     int             i_pid_audio;
291     int             i_pid_spu;
292     int             i_pid_free; // first usable pid
293
294     int             i_tsid;
295     int             i_pat_version_number;
296     ts_stream_t     pat;
297
298     int             i_pmt_version_number;
299     ts_stream_t     pmt;        // Up to now only one program
300     int             i_pmt_program_number;
301
302     int             i_mpeg4_streams;
303
304     int             i_null_continuity_counter;  /* Needed ? */
305
306     /* for TS building */
307     int64_t             i_bitrate_min;
308     int64_t             i_bitrate_max;
309
310     int64_t             i_shaping_delay;
311     int64_t             i_pcr_delay;
312
313     int64_t             i_dts_delay;
314
315     vlc_bool_t          b_use_key_frames;
316
317     mtime_t             i_pcr;  /* last PCR emited */
318
319     csa_t               *csa;
320     vlc_bool_t          b_crypt_audio;
321 };
322
323
324 /* Reserve a pid and return it */
325 static int  AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
326 {
327     int i_pid;
328     if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
329     {
330         i_pid = p_sys->i_pid_video;
331         p_sys->i_pid_video = 0;
332     }
333     else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
334     {
335         i_pid = p_sys->i_pid_audio;
336         p_sys->i_pid_audio = 0;
337     }
338     else if ( i_cat == SPU_ES && p_sys->i_pid_spu )
339     {
340         i_pid = p_sys->i_pid_spu;
341         p_sys->i_pid_spu = 0;
342     }
343     else
344     {
345         i_pid = ++p_sys->i_pid_free;
346     }
347     return i_pid;
348 }
349
350 /*****************************************************************************
351  * Local prototypes
352  *****************************************************************************/
353 static int Control  ( sout_mux_t *, int, va_list );
354 static int AddStream( sout_mux_t *, sout_input_t * );
355 static int DelStream( sout_mux_t *, sout_input_t * );
356 static int Mux      ( sout_mux_t * );
357
358 static block_t *FixPES( sout_mux_t *p_mux, block_fifo_t *p_fifo );
359 static void TSSchedule  ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
360                           mtime_t i_pcr_length, mtime_t i_pcr_dts );
361 static void TSDate      ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
362                           mtime_t i_pcr_length, mtime_t i_pcr_dts );
363 static void GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
364 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
365
366 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, vlc_bool_t b_pcr );
367 static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
368
369 static void PEStoTS  ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
370
371 /*****************************************************************************
372  * Open:
373  *****************************************************************************/
374 static int Open( vlc_object_t *p_this )
375 {
376     sout_mux_t          *p_mux =(sout_mux_t*)p_this;
377     sout_mux_sys_t      *p_sys;
378     vlc_value_t         val;
379
380     msg_Dbg( p_mux, "Open" );
381     sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
382
383     p_sys = malloc( sizeof( sout_mux_sys_t ) );
384
385     p_mux->pf_control   = Control;
386     p_mux->pf_addstream = AddStream;
387     p_mux->pf_delstream = DelStream;
388     p_mux->pf_mux       = Mux;
389     p_mux->p_sys        = p_sys;
390
391     srand( (uint32_t)mdate() );
392
393     p_sys->i_audio_bound = 0;
394     p_sys->i_video_bound = 0;
395
396     p_sys->i_pat_version_number = rand() % 32;
397     p_sys->pat.i_pid = 0;
398     p_sys->pat.i_continuity_counter = 0;
399
400     var_Get( p_mux, SOUT_CFG_PREFIX "tsid", &val );
401     if ( val.i_int )
402         p_sys->i_tsid = val.i_int;
403     else
404         p_sys->i_tsid = rand() % 65536;
405     p_sys->i_pmt_version_number = rand() % 32;
406     p_sys->pmt.i_continuity_counter = 0;
407
408     var_Get( p_mux, SOUT_CFG_PREFIX "program-pmt", &val );
409     if (val.i_int )
410     {
411         p_sys->i_pmt_program_number = val.i_int;
412     }
413     else
414     {
415         p_sys->i_pmt_program_number = 1;
416     }
417
418     var_Get( p_mux, SOUT_CFG_PREFIX "pid-pmt", &val );
419     if (val.i_int )
420     {
421         p_sys->pmt.i_pid = val.i_int;
422     }
423     else
424     {
425        p_sys->pmt.i_pid = 0x42;
426     }
427
428     p_sys->i_pid_free = p_sys->pmt.i_pid + 1;
429
430     var_Get( p_mux, SOUT_CFG_PREFIX "es-id-pid", &val );
431     p_sys->b_es_id_pid = val.b_bool;
432
433     var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
434     p_sys->i_pid_video = val.i_int;
435     if ( p_sys->i_pid_video > p_sys->i_pid_free )
436     {
437         p_sys->i_pid_free = p_sys->i_pid_video + 1;
438     }
439
440     var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
441     p_sys->i_pid_audio = val.i_int;
442     if ( p_sys->i_pid_audio > p_sys->i_pid_free )
443     {
444         p_sys->i_pid_free = p_sys->i_pid_audio + 1;
445     }
446
447     var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
448     p_sys->i_pid_spu = val.i_int;
449     if ( p_sys->i_pid_spu > p_sys->i_pid_free )
450     {
451         p_sys->i_pid_free = p_sys->i_pid_spu + 1;
452     }
453
454     p_sys->i_pcr_pid = 0x1fff;
455     p_sys->p_pcr_input = NULL;
456
457     p_sys->i_mpeg4_streams = 0;
458
459     p_sys->i_null_continuity_counter = 0;
460
461     /* Allow to create constrained stream */
462     var_Get( p_mux, SOUT_CFG_PREFIX "bmin", &val );
463     p_sys->i_bitrate_min = val.i_int;
464
465     var_Get( p_mux, SOUT_CFG_PREFIX "bmax", &val );
466     p_sys->i_bitrate_max = val.i_int;
467
468     if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
469         p_sys->i_bitrate_min > p_sys->i_bitrate_max )
470     {
471         msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
472                  "disabling bitrate control" );
473         p_sys->i_bitrate_min = 0;
474         p_sys->i_bitrate_max = 0;
475     }
476     if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
477     {
478         msg_Err( p_mux, "bmin and bmax no more supported "
479                  "(if you need them report it)" );
480     }
481
482     var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
483     p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
484     if( p_sys->i_shaping_delay <= 0 )
485     {
486         msg_Err( p_mux,
487                  "invalid shaping ("I64Fd"ms) resetting to 200ms",
488                  p_sys->i_shaping_delay / 1000 );
489         p_sys->i_shaping_delay = 200000;
490     }
491
492     var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
493     p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
494     if( p_sys->i_pcr_delay <= 0 ||
495         p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
496     {
497         msg_Err( p_mux,
498                  "invalid pcr delay ("I64Fd"ms) resetting to 30ms",
499                  p_sys->i_pcr_delay / 1000 );
500         p_sys->i_pcr_delay = 30000;
501     }
502
503     var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
504     p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
505
506     msg_Dbg( p_mux, "shaping="I64Fd" pcr="I64Fd" dts_delay="I64Fd,
507              p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
508
509     var_Get( p_mux, SOUT_CFG_PREFIX "use-key-frames", &val );
510     p_sys->b_use_key_frames = val.b_bool;
511
512     /* for TS generation */
513     p_sys->i_pcr    = 0;
514
515     p_sys->csa      = NULL;
516     var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
517     if( val.psz_string && *val.psz_string )
518     {
519         char *psz = val.psz_string;
520
521         /* skip 0x */
522         if( psz[0] == '0' && ( psz[1] == 'x' || psz[1] == 'X' ) )
523         {
524             psz += 2;
525         }
526         if( strlen( psz ) != 16 )
527         {
528             msg_Dbg( p_mux, "invalid csa ck (it must be 16 chars long)" );
529         }
530         else
531         {
532             uint64_t i_ck = strtoull( psz, NULL, 16 );
533             uint8_t  ck[8];
534             int      i;
535
536             for( i = 0; i < 8; i++ )
537             {
538                 ck[i] = ( i_ck >> ( 56 - 8*i) )&0xff;
539             }
540
541             msg_Dbg( p_mux, "using CSA scrambling with ck=%x:%x:%x:%x:%x:%x:%x:%x",
542                      ck[0], ck[1], ck[2], ck[3], ck[4], ck[5], ck[6], ck[7] );
543
544             p_sys->csa = csa_New();
545             csa_SetCW( p_sys->csa, ck, ck );
546         }
547     }
548     if( val.psz_string ) free( val.psz_string );
549
550     var_Get( p_mux, SOUT_CFG_PREFIX "crypt-audio", &val );
551     p_sys->b_crypt_audio = val.b_bool;
552
553     return VLC_SUCCESS;
554 }
555
556 /*****************************************************************************
557  * Close:
558  *****************************************************************************/
559 static void Close( vlc_object_t * p_this )
560 {
561     sout_mux_t          *p_mux = (sout_mux_t*)p_this;
562     sout_mux_sys_t      *p_sys = p_mux->p_sys;
563
564     msg_Dbg( p_mux, "Close" );
565     if( p_sys->csa )
566     {
567         csa_Delete( p_sys->csa );
568     }
569
570     free( p_sys );
571 }
572
573 /*****************************************************************************
574  * Control:
575  *****************************************************************************/
576 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
577 {
578     vlc_bool_t *pb_bool;
579     char **ppsz;
580
581    switch( i_query )
582    {
583        case MUX_CAN_ADD_STREAM_WHILE_MUXING:
584            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
585            *pb_bool = VLC_TRUE;
586            return VLC_SUCCESS;
587
588        case MUX_GET_ADD_STREAM_WAIT:
589            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
590            *pb_bool = VLC_FALSE;
591            return VLC_SUCCESS;
592
593        case MUX_GET_MIME:
594            ppsz = (char**)va_arg( args, char ** );
595            *ppsz = strdup( "video/mpeg" );  /* FIXME not sure */
596            return VLC_SUCCESS;
597
598         default:
599             return VLC_EGENERIC;
600    }
601 }
602
603 /*****************************************************************************
604  * AddStream: called for each stream addition
605  *****************************************************************************/
606 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
607 {
608     sout_mux_sys_t      *p_sys = p_mux->p_sys;
609     ts_stream_t         *p_stream;
610
611     p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
612
613     /* Init this new stream */
614     if ( p_sys->b_es_id_pid )
615         p_stream->i_pid = p_input->p_fmt->i_id & 0x1fff;
616     else
617         p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
618     p_stream->i_codec = p_input->p_fmt->i_codec;
619     p_stream->i_continuity_counter    = 0;
620     p_stream->i_decoder_specific_info = 0;
621     p_stream->p_decoder_specific_info = NULL;
622
623     msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
624              (char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
625
626     /* All others fields depand on codec */
627     switch( p_input->p_fmt->i_cat )
628     {
629         case VIDEO_ES:
630             switch( p_input->p_fmt->i_codec )
631             {
632                 case VLC_FOURCC( 'm', 'p','g', 'v' ):
633                     /* TODO: do we need to check MPEG-I/II ? */
634                     p_stream->i_stream_type = 0x02;
635                     p_stream->i_stream_id = 0xe0;
636                     break;
637                 case VLC_FOURCC( 'm', 'p','4', 'v' ):
638                     p_stream->i_stream_type = 0x10;
639                     p_stream->i_stream_id = 0xfa;
640                     p_sys->i_mpeg4_streams++;
641                     p_stream->i_es_id = p_stream->i_pid;
642                     break;
643                 case VLC_FOURCC( 'h', '2','6', '4' ):
644                     p_stream->i_stream_type = 0x1b;
645                     p_stream->i_stream_id = 0xe0;
646                     break;
647                 /* XXX dirty dirty but somebody want that:
648                  *     using crapy MS-codec XXX */
649                 /* I didn't want to do that :P */
650                 case VLC_FOURCC( 'H', '2', '6', '3' ):
651                 case VLC_FOURCC( 'I', '2', '6', '3' ):
652                 case VLC_FOURCC( 'W', 'M', 'V', '3' ):
653                 case VLC_FOURCC( 'W', 'M', 'V', '2' ):
654                 case VLC_FOURCC( 'W', 'M', 'V', '1' ):
655                 case VLC_FOURCC( 'D', 'I', 'V', '3' ):
656                 case VLC_FOURCC( 'D', 'I', 'V', '2' ):
657                 case VLC_FOURCC( 'D', 'I', 'V', '1' ):
658                 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
659                     p_stream->i_stream_type = 0xa0; // private
660                     p_stream->i_stream_id = 0xa0;   // beurk
661                     p_stream->i_bih_codec  = p_input->p_fmt->i_codec;
662                     p_stream->i_bih_width  = p_input->p_fmt->video.i_width;
663                     p_stream->i_bih_height = p_input->p_fmt->video.i_height;
664                     break;
665                 default:
666                     free( p_stream );
667                     return VLC_EGENERIC;
668             }
669             p_sys->i_video_bound++;
670             break;
671
672         case AUDIO_ES:
673             switch( p_input->p_fmt->i_codec )
674             {
675                 case VLC_FOURCC( 'm', 'p','g', 'a' ):
676                     p_stream->i_stream_type =
677                         p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
678                     p_stream->i_stream_id = 0xc0;
679                     break;
680                 case VLC_FOURCC( 'a', '5','2', ' ' ):
681                     p_stream->i_stream_type = 0x81;
682                     p_stream->i_stream_id = 0xbd;
683                     break;
684                 case VLC_FOURCC( 'l', 'p','c', 'm' ):
685                     p_stream->i_stream_type = 0x83;
686                     p_stream->i_stream_id = 0xbd;
687                     break;
688                 case VLC_FOURCC( 'd', 't','s', ' ' ):
689                     p_stream->i_stream_type = 0x06;
690                     p_stream->i_stream_id = 0xbd;
691                     break;
692
693                 case VLC_FOURCC( 'm', 'p','4', 'a' ):
694                     p_stream->i_stream_type = 0x11;
695                     p_stream->i_stream_id = 0xfa;
696                     p_sys->i_mpeg4_streams++;
697                     p_stream->i_es_id = p_stream->i_pid;
698                     break;
699                 default:
700                     free( p_stream );
701                     return VLC_EGENERIC;
702             }
703             p_sys->i_audio_bound++;
704             break;
705
706         case SPU_ES:
707             switch( p_input->p_fmt->i_codec )
708             {
709                 case VLC_FOURCC( 's', 'p','u', ' ' ):
710                     p_stream->i_stream_type = 0x82;
711                     p_stream->i_stream_id = 0xbd;
712                     break;
713                 case VLC_FOURCC( 's', 'u','b', 't' ):
714                     p_stream->i_stream_type = 0x12;
715                     p_stream->i_stream_id = 0xfa;
716                     p_sys->i_mpeg4_streams++;
717                     p_stream->i_es_id = p_stream->i_pid;
718                     break;
719                 case VLC_FOURCC('d','v','b','s'):
720                     p_stream->i_stream_type = 0x06;
721                     p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
722                     p_stream->i_stream_id = 0xbd;
723                     break;
724                 case VLC_FOURCC('t','e','l','x'):
725                     p_stream->i_stream_type = 0x06;
726                     p_stream->i_stream_id = 0xbd; /* FIXME */
727                     break;
728                 default:
729                     free( p_stream );
730                     return VLC_EGENERIC;
731             }
732             break;
733
734         default:
735             free( p_stream );
736             return VLC_EGENERIC;
737     }
738
739     p_stream->lang[0] =
740     p_stream->lang[1] =
741     p_stream->lang[2] = '\0';
742     if( p_input->p_fmt->psz_language )
743     {
744         char *psz = p_input->p_fmt->psz_language;
745         const iso639_lang_t *pl = NULL;
746
747         if( strlen( psz ) == 2 )
748         {
749             pl = GetLang_1( psz );
750         }
751         else if( strlen( psz ) == 3 )
752         {
753             pl = GetLang_2B( psz );
754             if( !strcmp( pl->psz_iso639_1, "??" ) )
755             {
756                 pl = GetLang_2T( psz );
757             }
758         }
759         if( pl && strcmp( pl->psz_iso639_1, "??" ) )
760         {
761             p_stream->lang[0] = pl->psz_iso639_2T[0];
762             p_stream->lang[1] = pl->psz_iso639_2T[1];
763             p_stream->lang[2] = pl->psz_iso639_2T[2];
764
765             msg_Dbg( p_mux, "    - lang=%c%c%c",
766                      p_stream->lang[0], p_stream->lang[1], p_stream->lang[2] );
767         }
768     }
769
770
771     /* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
772     p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
773     if( p_stream->i_decoder_specific_info > 0 )
774     {
775         p_stream->p_decoder_specific_info =
776             malloc( p_stream->i_decoder_specific_info );
777         memcpy( p_stream->p_decoder_specific_info,
778                 p_input->p_fmt->p_extra,
779                 p_input->p_fmt->i_extra );
780     }
781
782     /* Create decoder specific info for subt */
783     if( p_stream->i_codec == VLC_FOURCC( 's', 'u','b', 't' ) )
784     {
785         uint8_t *p;
786
787         p_stream->i_decoder_specific_info = 55;
788         p_stream->p_decoder_specific_info = p =
789             malloc( p_stream->i_decoder_specific_info );
790
791         p[0] = 0x10;    /* textFormat, 0x10 for 3GPP TS 26.245 */
792         p[1] = 0x00;    /* flags: 1b: associated video info flag
793                                   3b: reserved
794                                   1b: duration flag
795                                   3b: reserved */
796         p[2] = 52;      /* remaining size */
797
798         p += 3;
799
800         p[0] = p[1] = p[2] = p[3] = 0; p+=4;    /* display flags */
801         *p++ = 0;  /* horizontal justification (-1: left, 0 center, 1 right) */
802         *p++ = 1;  /* vertical   justification (-1: top, 0 center, 1 bottom) */
803
804         p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
805         *p++ = 0xff;                    /* background a */
806
807         p[0] = p[1] = 0; p += 2;        /* text box top */
808         p[0] = p[1] = 0; p += 2;        /* text box left */
809         p[0] = p[1] = 0; p += 2;        /* text box bottom */
810         p[0] = p[1] = 0; p += 2;        /* text box right */
811
812         p[0] = p[1] = 0; p += 2;        /* start char */
813         p[0] = p[1] = 0; p += 2;        /* end char */
814         p[0] = p[1] = 0; p += 2;        /* default font id */
815
816         *p++ = 0;                       /* font style flags */
817         *p++ = 12;                      /* font size */
818
819         p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
820         *p++ = 0x00;                    /* foreground a */
821
822         p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
823         memcpy( p, "ftab", 4 ); p += 4;
824         *p++ = 0; *p++ = 1;             /* entry count */
825         p[0] = p[1] = 0; p += 2;        /* font id */
826         *p++ = 9;                       /* font name length */
827         memcpy( p, "Helvetica", 9 );    /* font name */
828     }
829
830     /* Init pes chain */
831     BufferChainInit( &p_stream->chain_pes );
832     p_stream->i_pes_dts    = 0;
833     p_stream->i_pes_length = 0;
834     p_stream->i_pes_used   = 0;
835     p_stream->b_key_frame  = 0;
836
837     /* We only change PMT version (PAT isn't changed) */
838     p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
839
840     /* Update pcr_pid */
841     if( p_input->p_fmt->i_cat != SPU_ES &&
842         ( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
843     {
844         if( p_sys->p_pcr_input )
845         {
846             /* There was already a PCR stream, so clean context */
847             /* FIXME */
848         }
849         p_sys->i_pcr_pid   = p_stream->i_pid;
850         p_sys->p_pcr_input = p_input;
851
852         msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
853     }
854
855     return VLC_SUCCESS;
856 }
857
858 /*****************************************************************************
859  * DelStream: called before a stream deletion
860  *****************************************************************************/
861 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
862 {
863     sout_mux_sys_t  *p_sys = p_mux->p_sys;
864     ts_stream_t     *p_stream;
865     vlc_value_t     val;
866
867     p_stream = (ts_stream_t*)p_input->p_sys;
868     msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
869
870     if( p_sys->i_pcr_pid == p_stream->i_pid )
871     {
872         int i;
873
874         /* Find a new pcr stream (Prefer Video Stream) */
875         p_sys->i_pcr_pid = 0x1fff;
876         p_sys->p_pcr_input = NULL;
877         for( i = 0; i < p_mux->i_nb_inputs; i++ )
878         {
879             if( p_mux->pp_inputs[i] == p_input )
880             {
881                 continue;
882             }
883
884             if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
885             {
886                 p_sys->i_pcr_pid  =
887                     ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
888                 p_sys->p_pcr_input= p_mux->pp_inputs[i];
889                 break;
890             }
891             else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
892                      p_sys->i_pcr_pid == 0x1fff )
893             {
894                 p_sys->i_pcr_pid  =
895                     ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
896                 p_sys->p_pcr_input= p_mux->pp_inputs[i];
897             }
898         }
899         if( p_sys->p_pcr_input )
900         {
901             /* Empty TS buffer */
902             /* FIXME */
903         }
904         msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
905     }
906
907     /* Empty all data in chain_pes */
908     BufferChainClean( p_mux->p_sout, &p_stream->chain_pes );
909
910     if( p_stream->p_decoder_specific_info )
911     {
912         free( p_stream->p_decoder_specific_info );
913     }
914     if( p_stream->i_stream_id == 0xfa ||
915         p_stream->i_stream_id == 0xfb ||
916         p_stream->i_stream_id == 0xfe )
917     {
918         p_sys->i_mpeg4_streams--;
919     }
920
921     var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
922     if( val.i_int > 0 )
923     {
924         int i_pid_video = val.i_int;
925         if ( i_pid_video == p_stream->i_pid )
926         {
927             p_sys->i_pid_video = i_pid_video;
928             msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
929         }
930     }
931     var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
932     if( val.i_int > 0 )
933     {
934         int i_pid_audio = val.i_int;
935         if ( i_pid_audio == p_stream->i_pid )
936         {
937             p_sys->i_pid_audio = i_pid_audio;
938             msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
939         }
940     }
941     var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
942     if( val.i_int > 0 )
943     {
944         int i_pid_spu = val.i_int;
945         if ( i_pid_spu == p_stream->i_pid )
946         {
947             p_sys->i_pid_spu = i_pid_spu;
948             msg_Dbg( p_mux, "freeing spu PID %d", i_pid_spu );
949         }
950     }
951     free( p_stream );
952
953     /* We only change PMT version (PAT isn't changed) */
954     p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
955
956     return VLC_SUCCESS;
957 }
958
959 /*****************************************************************************
960  * Mux: Call each time there is new data for at least one stream
961  *****************************************************************************
962  *
963  *****************************************************************************/
964 static int Mux( sout_mux_t *p_mux )
965 {
966     sout_mux_sys_t  *p_sys = p_mux->p_sys;
967     ts_stream_t     *p_pcr_stream;
968
969     if( p_sys->i_pcr_pid == 0x1fff )
970     {
971         msg_Dbg( p_mux, "waiting for PCR streams" );
972         msleep( 1000 );
973         return VLC_SUCCESS;
974     }
975     p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
976
977     for( ;; )
978     {
979         sout_buffer_chain_t chain_ts;
980         int                 i_packet_count;
981         int                 i_packet_pos;
982         mtime_t             i_pcr_dts;
983         mtime_t             i_pcr_length;
984         mtime_t             i_shaping_delay;
985         int i;
986
987         if( p_pcr_stream->b_key_frame )
988         {
989             i_shaping_delay = p_pcr_stream->i_pes_length;
990         }
991         else
992         {
993             i_shaping_delay = p_sys->i_shaping_delay;
994         }
995
996         /* 1: get enough PES packet for all input */
997         for( ;; )
998         {
999             vlc_bool_t b_ok = VLC_TRUE;
1000             block_t *p_data;
1001
1002             /* Accumulate enough data in the pcr stream (>i_shaping_delay) */
1003             /* Accumulate enough data in all other stream ( >= length of pcr)*/
1004             for( i = -1; i < p_mux->i_nb_inputs; i++ )
1005             {
1006                 sout_input_t *p_input;
1007                 ts_stream_t *p_stream;
1008                 int64_t i_spu_delay = 0;
1009
1010                 if( i == -1 )
1011                     p_input = p_sys->p_pcr_input;
1012                 else if( p_mux->pp_inputs[i]->p_sys == p_pcr_stream )
1013                     continue;
1014                 else
1015                     p_input = p_mux->pp_inputs[i];
1016                 p_stream = (ts_stream_t*)p_input->p_sys;
1017
1018                 if( ( p_stream == p_pcr_stream &&
1019                       p_stream->i_pes_length < i_shaping_delay ) ||
1020                     p_stream->i_pes_dts + p_stream->i_pes_length <
1021                     p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1022                 {
1023                     /* Need more data */
1024                     if( p_input->p_fifo->i_depth <= 1 )
1025                     {
1026                         if( p_input->p_fmt->i_cat == AUDIO_ES ||
1027                             p_input->p_fmt->i_cat == VIDEO_ES )
1028                         {
1029                             /* We need more data */
1030                             return VLC_SUCCESS;
1031                         }
1032                         else if( p_input->p_fifo->i_depth <= 0 )
1033                         {
1034                             /* spu, only one packet is needed */
1035                             continue;
1036                         }
1037                         else
1038                         {
1039                             /* Don't mux the SPU yet if it is too early */
1040                             block_t *p_spu = block_FifoShow( p_input->p_fifo );
1041
1042                             i_spu_delay =
1043                                 p_spu->i_dts - p_pcr_stream->i_pes_dts;
1044
1045                             if( i_spu_delay > i_shaping_delay &&
1046                                 i_spu_delay < I64C(100000000) )
1047                                 continue;
1048
1049                             if ( i_spu_delay >= I64C(100000000)
1050                                   || i_spu_delay < 10000 )
1051                             {
1052                                 BufferChainClean( p_mux->p_sout,
1053                                                   &p_stream->chain_pes );
1054                                 p_stream->i_pes_dts = 0;
1055                                 p_stream->i_pes_used = 0;
1056                                 p_stream->i_pes_length = 0;
1057                                 continue;
1058                             }
1059                         }
1060                     }
1061                     b_ok = VLC_FALSE;
1062
1063                     if( p_stream == p_pcr_stream
1064                          || p_input->p_fmt->i_codec !=
1065                              VLC_FOURCC('m', 'p', 'g', 'a') )
1066                         p_data = block_FifoGet( p_input->p_fifo );
1067                     else
1068                         p_data = FixPES( p_mux, p_input->p_fifo );
1069
1070                     if( p_input->p_fifo->i_depth > 0 &&
1071                         p_input->p_fmt->i_cat != SPU_ES )
1072                     {
1073                         block_t *p_next = block_FifoShow( p_input->p_fifo );
1074                         p_data->i_length = p_next->i_dts - p_data->i_dts;
1075                     }
1076                     else
1077                         p_data->i_length = 1000;
1078
1079                     if( ( p_pcr_stream->i_pes_dts > 0 &&
1080                           p_data->i_dts - 10000000 > p_pcr_stream->i_pes_dts +
1081                           p_pcr_stream->i_pes_length ) ||
1082                         p_data->i_dts < p_stream->i_pes_dts ||
1083                         ( p_stream->i_pes_dts > 0 &&
1084                           p_input->p_fmt->i_cat != SPU_ES &&
1085                           p_data->i_dts - 10000000 > p_stream->i_pes_dts +
1086                           p_stream->i_pes_length ) )
1087                     {
1088                         msg_Warn( p_mux, "packet with too strange dts "
1089                                   "(dts="I64Fd",old="I64Fd",pcr="I64Fd")",
1090                                   p_data->i_dts, p_stream->i_pes_dts,
1091                                   p_pcr_stream->i_pes_dts );
1092                         block_Release( p_data );
1093
1094                         BufferChainClean( p_mux->p_sout,
1095                                           &p_stream->chain_pes );
1096                         p_stream->i_pes_dts = 0;
1097                         p_stream->i_pes_used = 0;
1098                         p_stream->i_pes_length = 0;
1099
1100                         if( p_input->p_fmt->i_cat != SPU_ES )
1101                         {
1102                             BufferChainClean( p_mux->p_sout,
1103                                               &p_pcr_stream->chain_pes );
1104                             p_pcr_stream->i_pes_dts = 0;
1105                             p_pcr_stream->i_pes_used = 0;
1106                             p_pcr_stream->i_pes_length = 0;
1107                         }
1108                     }
1109                     else
1110                     {
1111                         int i_header_size = 0;
1112                         int b_data_alignment = 0;
1113                         if( p_input->p_fmt->i_cat == SPU_ES )
1114                         {
1115                             if( p_input->p_fmt->i_codec ==
1116                                 VLC_FOURCC('s','u','b','t') )
1117                             {
1118                                 /* Prepend header */
1119                                 p_data = block_Realloc( p_data, 2,
1120                                                         p_data->i_buffer );
1121                                 p_data->p_buffer[0] =
1122                                     ( (p_data->i_buffer - 2) >> 8) & 0xff;
1123                                 p_data->p_buffer[1] =
1124                                     ( (p_data->i_buffer - 2)     ) & 0xff;
1125
1126                                 /* remove trailling \0 if any */
1127                                 if( p_data->i_buffer > 2 &&
1128                                     p_data->p_buffer[p_data->i_buffer -1] ==
1129                                     '\0' )
1130                                     p_data->i_buffer--;
1131
1132                                 /* Append a empty sub (sub text only) */
1133                                 if( p_data->i_length > 0 &&
1134                                     !( p_data->i_buffer == 1 &&
1135                                        *p_data->p_buffer == ' ' ) )
1136                                 {
1137                                     block_t *p_spu = block_New( p_mux, 3 );
1138
1139                                     p_spu->i_dts = p_spu->i_pts =
1140                                         p_data->i_dts + p_data->i_length;
1141                                     p_spu->i_length = 1000;
1142
1143                                     p_spu->p_buffer[0] = 0;
1144                                     p_spu->p_buffer[1] = 1;
1145                                     p_spu->p_buffer[2] = ' ';
1146
1147                                     E_(EStoPES)( p_mux->p_sout, &p_spu, p_spu,
1148                                                  p_input->p_fmt,
1149                                                  p_stream->i_stream_id, 1,
1150                                                  0, 0, 0 );
1151                                     p_data->p_next = p_spu;
1152                                 }
1153                             }
1154                             else if( p_input->p_fmt->i_codec ==
1155                                        VLC_FOURCC('t','e','l','x') )
1156                             {
1157                                 /* EN 300 472 */
1158                                 i_header_size = 0x24;
1159                                 b_data_alignment = 1;
1160                             }
1161                         }
1162                         else if( p_data->i_length < 0 ||
1163                                  p_data->i_length > 2000000 )
1164                         {
1165                             /* FIXME choose a better value, but anyway we
1166                              * should never have to do that */
1167                             p_data->i_length = 1000;
1168                         }
1169
1170                         p_stream->i_pes_length += p_data->i_length;
1171                         if( p_stream->i_pes_dts == 0 )
1172                         {
1173                             p_stream->i_pes_dts = p_data->i_dts;
1174                         }
1175
1176                         /* Convert to pes */
1177                         if( p_stream->i_stream_id == 0xa0 &&
1178                             p_data->i_pts <= 0 )
1179                         {
1180                             /* XXX yes I know, it's awfull, but it's needed,
1181                              * so don't remove it ... */
1182                             p_data->i_pts = p_data->i_dts;
1183                         }
1184                         E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
1185                                        p_input->p_fmt, p_stream->i_stream_id,
1186                                        1, b_data_alignment, i_header_size, 0 );
1187
1188                         BufferChainAppend( &p_stream->chain_pes, p_data );
1189
1190                         if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
1191                             && (p_data->i_flags & BLOCK_FLAG_TYPE_I)
1192                             && !(p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME)
1193                             && (p_stream->i_pes_length > 400000) )
1194                         {
1195                             i_shaping_delay = p_stream->i_pes_length;
1196                             p_stream->b_key_frame = 1;
1197                         }
1198                     }
1199                 }
1200             }
1201
1202             if( b_ok )
1203             {
1204                 break;
1205             }
1206         }
1207
1208         /* save */
1209         i_pcr_dts      = p_pcr_stream->i_pes_dts;
1210         i_pcr_length   = p_pcr_stream->i_pes_length;
1211         p_pcr_stream->b_key_frame = 0;
1212
1213         /* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
1214         /* 2: calculate non accurate total size of muxed ts */
1215         i_packet_count = 0;
1216         for( i = 0; i < p_mux->i_nb_inputs; i++ )
1217         {
1218             ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1219             block_t *p_pes;
1220
1221             /* False for pcr stream but it will be enough to do PCR algo */
1222             for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
1223                  p_pes = p_pes->p_next )
1224             {
1225                 int i_size = p_pes->i_buffer;
1226                 if( p_pes->i_dts + p_pes->i_length >
1227                     p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1228                 {
1229                     mtime_t i_frag = p_pcr_stream->i_pes_dts +
1230                         p_pcr_stream->i_pes_length - p_pes->i_dts;
1231                     if( i_frag < 0 )
1232                     {
1233                         /* Next stream */
1234                         break;
1235                     }
1236                     i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
1237                 }
1238                 i_packet_count += ( i_size + 183 ) / 184;
1239             }
1240         }
1241         /* add overhead for PCR (not really exact) */
1242         i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
1243
1244         /* 3: mux PES into TS */
1245         BufferChainInit( &chain_ts );
1246         /* append PAT/PMT  -> FIXME with big pcr delay it won't have enough pat/pmt */
1247         GetPAT( p_mux, &chain_ts );
1248         GetPMT( p_mux, &chain_ts );
1249         i_packet_pos = 0;
1250         i_packet_count += chain_ts.i_depth;
1251         /* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
1252
1253         for( ;; )
1254         {
1255             int         i_stream;
1256             mtime_t     i_dts;
1257             ts_stream_t *p_stream;
1258             sout_input_t *p_input;
1259             block_t *p_ts;
1260             vlc_bool_t   b_pcr;
1261
1262             /* Select stream (lowest dts) */
1263             for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
1264             {
1265                 p_input = p_mux->pp_inputs[i];
1266                 p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1267
1268                 if( p_stream->i_pes_dts == 0 )
1269                 {
1270                     continue;
1271                 }
1272
1273                 if( i_stream == -1 ||
1274                     p_stream->i_pes_dts < i_dts )
1275                 {
1276                     i_stream = i;
1277                     i_dts = p_stream->i_pes_dts;
1278                 }
1279             }
1280             if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
1281             {
1282                 break;
1283             }
1284             p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1285
1286             /* do we need to issue pcr */
1287             b_pcr = VLC_FALSE;
1288             if( p_stream == p_pcr_stream &&
1289                 i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
1290                 p_sys->i_pcr + p_sys->i_pcr_delay )
1291             {
1292                 b_pcr = VLC_TRUE;
1293                 p_sys->i_pcr = i_pcr_dts + i_packet_pos *
1294                     i_pcr_length / i_packet_count;
1295             }
1296
1297             /* Build the TS packet */
1298             p_ts = TSNew( p_mux, p_stream, b_pcr );
1299             if( p_sys->csa != NULL &&
1300                  (p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) )
1301             {
1302                 p_ts->i_flags |= BLOCK_FLAG_SCRAMBLED;
1303             }
1304             i_packet_pos++;
1305
1306             /* */
1307             BufferChainAppend( &chain_ts, p_ts );
1308         }
1309
1310         /* 4: date and send */
1311         TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
1312     }
1313 }
1314
1315 #define STD_PES_PAYLOAD 170
1316 static block_t *FixPES( sout_mux_t *p_mux, block_fifo_t *p_fifo )
1317 {
1318     block_t *p_data;
1319     int i_size;
1320
1321     p_data = block_FifoShow( p_fifo );
1322     i_size = p_data->i_buffer;
1323
1324     if( i_size == STD_PES_PAYLOAD )
1325     {
1326         return block_FifoGet( p_fifo );
1327     }
1328     else if( i_size > STD_PES_PAYLOAD )
1329     {
1330         block_t *p_new = block_New( p_mux, STD_PES_PAYLOAD );
1331         p_mux->p_vlc->pf_memcpy( p_new->p_buffer, p_data->p_buffer, STD_PES_PAYLOAD );
1332         p_new->i_pts = p_data->i_pts;
1333         p_new->i_dts = p_data->i_dts;
1334         p_new->i_length = p_data->i_length * STD_PES_PAYLOAD
1335                             / p_data->i_buffer;
1336         p_data->i_buffer -= STD_PES_PAYLOAD;
1337         p_data->p_buffer += STD_PES_PAYLOAD;
1338         p_data->i_pts += p_new->i_length;
1339         p_data->i_dts += p_new->i_length;
1340         p_data->i_length -= p_new->i_length;
1341         p_data->i_flags |= BLOCK_FLAG_NO_KEYFRAME;
1342         return p_new;
1343     }
1344     else
1345     {
1346         block_t *p_next;
1347         p_data = block_FifoGet( p_fifo );
1348         p_data = block_Realloc( p_data, 0, STD_PES_PAYLOAD );
1349         p_next = block_FifoShow( p_fifo );
1350         if ( p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME )
1351         {
1352             p_data->i_flags &= ~BLOCK_FLAG_NO_KEYFRAME;
1353             p_data->i_pts = p_next->i_pts;
1354             p_data->i_dts = p_next->i_dts;
1355         }
1356         p_mux->p_vlc->pf_memcpy( &p_data->p_buffer[i_size], p_next->p_buffer,
1357                                  STD_PES_PAYLOAD - i_size );
1358         p_next->i_pts += p_next->i_length * (STD_PES_PAYLOAD - i_size)
1359                            / p_next->i_buffer;
1360         p_next->i_dts += p_next->i_length * (STD_PES_PAYLOAD - i_size)
1361                            / p_next->i_buffer;
1362         p_next->i_length -= p_next->i_length * (STD_PES_PAYLOAD - i_size)
1363                            / p_next->i_buffer;
1364         p_next->i_buffer -= STD_PES_PAYLOAD - i_size;
1365         p_next->p_buffer += STD_PES_PAYLOAD - i_size;
1366         p_next->i_flags |= BLOCK_FLAG_NO_KEYFRAME;
1367         return p_data;
1368     }
1369 }
1370
1371 static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1372                         mtime_t i_pcr_length, mtime_t i_pcr_dts )
1373 {
1374     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1375     sout_buffer_chain_t new_chain;
1376     int i_packet_count = p_chain_ts->i_depth;
1377     int i;
1378
1379     BufferChainInit( &new_chain );
1380
1381     if ( i_pcr_length <= 0 )
1382     {
1383         i_pcr_length = i_packet_count;
1384     }
1385
1386     for( i = 0; i < i_packet_count; i++ )
1387     {
1388         block_t *p_ts = BufferChainGet( p_chain_ts );
1389         mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1390
1391         BufferChainAppend( &new_chain, p_ts );
1392
1393         if( p_ts->i_dts &&
1394             p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
1395         {
1396             mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
1397             mtime_t i_cut_dts = p_ts->i_dts;
1398
1399             p_ts = BufferChainPeek( p_chain_ts );
1400             i++;
1401             i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1402             while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
1403             {
1404                 p_ts = BufferChainGet( p_chain_ts );
1405                 i_max_diff = i_new_dts - p_ts->i_dts;
1406                 i_cut_dts = p_ts->i_dts;
1407                 BufferChainAppend( &new_chain, p_ts );
1408
1409                 p_ts = BufferChainPeek( p_chain_ts );
1410                 i++;
1411                 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1412             }
1413             msg_Dbg( p_mux, "adjusting rate at "I64Fd"/"I64Fd" (%d/%d)",
1414                      i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
1415                      p_chain_ts->i_depth );
1416             if ( new_chain.i_depth )
1417                 TSDate( p_mux, &new_chain,
1418                         i_cut_dts - i_pcr_dts,
1419                         i_pcr_dts );
1420             if ( p_chain_ts->i_depth )
1421                 TSSchedule( p_mux,
1422                             p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
1423                             i_cut_dts );
1424             return;
1425         }
1426     }
1427
1428     if ( new_chain.i_depth )
1429         TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
1430 }
1431
1432 static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1433                     mtime_t i_pcr_length, mtime_t i_pcr_dts )
1434 {
1435     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1436     int i_packet_count = p_chain_ts->i_depth;
1437     int i;
1438
1439     if ( i_pcr_length / 1000 > 0 )
1440     {
1441         int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
1442                           / (uint64_t)(i_pcr_length / 1000);
1443         if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
1444         {
1445             msg_Warn( p_mux, "max bitrate exceeded at "I64Fd
1446                       " (%d bi/s for %d pkt in "I64Fd" us)",
1447                       i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1448                       i_bitrate, i_packet_count, i_pcr_length);
1449         }
1450 #if 0
1451         else
1452         {
1453             msg_Dbg( p_mux, "starting at "I64Fd
1454                      " (%d bi/s for %d packets in "I64Fd" us)",
1455                      i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1456                      i_bitrate, i_packet_count, i_pcr_length);
1457         }
1458 #endif
1459     }
1460     else
1461     {
1462         /* This shouldn't happen, but happens in some rare heavy load
1463          * and packet losses conditions. */
1464         i_pcr_length = i_packet_count;
1465     }
1466
1467     /* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
1468     for( i = 0; i < i_packet_count; i++ )
1469     {
1470         block_t *p_ts = BufferChainGet( p_chain_ts );
1471         mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1472
1473         p_ts->i_dts    = i_new_dts;
1474         p_ts->i_length = i_pcr_length / i_packet_count;
1475
1476         if( p_ts->i_flags & BLOCK_FLAG_CLOCK )
1477         {
1478             /* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
1479             TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
1480         }
1481         if( p_ts->i_flags & BLOCK_FLAG_SCRAMBLED )
1482         {
1483             csa_Encrypt( p_sys->csa, p_ts->p_buffer, 0 );
1484         }
1485
1486         /* latency */
1487         p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
1488
1489         sout_AccessOutWrite( p_mux->p_access, p_ts );
1490     }
1491 }
1492
1493 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
1494                        vlc_bool_t b_pcr )
1495 {
1496     block_t *p_pes = p_stream->chain_pes.p_first;
1497     block_t *p_ts;
1498
1499     vlc_bool_t b_new_pes = VLC_FALSE;
1500     vlc_bool_t b_adaptation_field = VLC_FALSE;
1501
1502     int        i_payload_max = 184 - ( b_pcr ? 8 : 0 );
1503     int        i_payload;
1504
1505     if( p_stream->i_pes_used <= 0 )
1506     {
1507         b_new_pes = VLC_TRUE;
1508     }
1509     i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
1510                        i_payload_max );
1511
1512     if( b_pcr || i_payload < i_payload_max )
1513     {
1514         b_adaptation_field = VLC_TRUE;
1515     }
1516
1517     p_ts = block_New( p_mux, 188 );
1518     p_ts->i_dts = p_pes->i_dts;
1519
1520     p_ts->p_buffer[0] = 0x47;
1521     p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
1522         ( ( p_stream->i_pid >> 8 )&0x1f );
1523     p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1524     p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
1525         p_stream->i_continuity_counter;
1526
1527     p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1528
1529     if( b_adaptation_field )
1530     {
1531         int i;
1532
1533         if( b_pcr )
1534         {
1535             int     i_stuffing = i_payload_max - i_payload;
1536
1537             p_ts->i_flags |= BLOCK_FLAG_CLOCK;
1538
1539             p_ts->p_buffer[4] = 7 + i_stuffing;
1540             p_ts->p_buffer[5] = 0x10;   /* flags */
1541             p_ts->p_buffer[6] = ( 0 )&0xff;
1542             p_ts->p_buffer[7] = ( 0 )&0xff;
1543             p_ts->p_buffer[8] = ( 0 )&0xff;
1544             p_ts->p_buffer[9] = ( 0 )&0xff;
1545             p_ts->p_buffer[10]= ( ( 0 )&0x80 ) | 0x7e;
1546             p_ts->p_buffer[11]= 0;
1547
1548             for( i = 12; i < 12 + i_stuffing; i++ )
1549             {
1550                 p_ts->p_buffer[i] = 0xff;
1551             }
1552         }
1553         else
1554         {
1555             int i_stuffing = i_payload_max - i_payload;
1556
1557             p_ts->p_buffer[4] = i_stuffing - 1;
1558             if( i_stuffing > 1 )
1559             {
1560                 p_ts->p_buffer[5] = 0x00;
1561                 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1562                 {
1563                     p_ts->p_buffer[i] = 0xff;
1564                 }
1565             }
1566         }
1567     }
1568
1569     /* copy payload */
1570     memcpy( &p_ts->p_buffer[188 - i_payload],
1571             &p_pes->p_buffer[p_stream->i_pes_used], i_payload );
1572
1573     p_stream->i_pes_used += i_payload;
1574     p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
1575         p_stream->i_pes_used / p_pes->i_buffer;
1576     p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
1577
1578     if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
1579     {
1580         p_pes = BufferChainGet( &p_stream->chain_pes );
1581         block_Release( p_pes );
1582
1583         p_pes = p_stream->chain_pes.p_first;
1584         if( p_pes )
1585         {
1586             p_stream->i_pes_dts    = p_pes->i_dts;
1587             p_stream->i_pes_length = 0;
1588             while( p_pes )
1589             {
1590                 p_stream->i_pes_length += p_pes->i_length;
1591
1592                 p_pes = p_pes->p_next;
1593             }
1594         }
1595         else
1596         {
1597             p_stream->i_pes_dts = 0;
1598             p_stream->i_pes_length = 0;
1599         }
1600         p_stream->i_pes_used = 0;
1601     }
1602
1603     return p_ts;
1604 }
1605
1606
1607 static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
1608 {
1609     mtime_t i_pcr = 9 * i_dts / 100;
1610
1611     p_ts->p_buffer[6]  = ( i_pcr >> 25 )&0xff;
1612     p_ts->p_buffer[7]  = ( i_pcr >> 17 )&0xff;
1613     p_ts->p_buffer[8]  = ( i_pcr >> 9  )&0xff;
1614     p_ts->p_buffer[9]  = ( i_pcr >> 1  )&0xff;
1615     p_ts->p_buffer[10]|= ( i_pcr << 7  )&0x80;
1616 }
1617
1618 #if 0
1619 static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
1620                               mtime_t i_length, int i_bitrate_min,
1621                               int i_bitrate_max )
1622 {
1623     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1624     sout_buffer_chain_t s = *c;
1625
1626     int i_packets = 0;
1627     int i_packets_min = 0;
1628     int i_packets_max = 0;
1629
1630     if( i_length <= 0 )
1631     {
1632         return;
1633     }
1634
1635     i_packets     = c->i_depth;
1636     i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000  + 187 ) / 188;
1637     i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000  + 187 ) / 188;
1638
1639     if( i_packets < i_packets_min && i_packets_min > 0 )
1640     {
1641         block_t *p_pk;
1642         int i_div = ( i_packets_min - i_packets ) / i_packets;
1643         int i_mod = ( i_packets_min - i_packets ) % i_packets;
1644         int i_rest = 0;
1645
1646         /* We need to pad with null packets (pid=0x1fff)
1647          * We try to melt null packets with true packets */
1648         msg_Dbg( p_mux,
1649                  "packets=%d but min=%d -> adding %d packets of padding",
1650                  i_packets, i_packets_min, i_packets_min - i_packets );
1651
1652         BufferChainInit( c );
1653         while( ( p_pk = BufferChainGet( &s ) ) )
1654         {
1655             int i, i_null;
1656
1657             BufferChainAppend( c, p_pk );
1658
1659             i_null = i_div + ( i_rest + i_mod ) / i_packets;
1660
1661             for( i = 0; i < i_null; i++ )
1662             {
1663                 block_t *p_null;
1664
1665                 p_null = sout_BufferNew( p_mux->p_sout, 188 );
1666                 p_null->p_buffer[0] = 0x47;
1667                 p_null->p_buffer[1] = 0x1f;
1668                 p_null->p_buffer[2] = 0xff;
1669                 p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
1670                 memset( &p_null->p_buffer[4], 0, 184 );
1671                 p_sys->i_null_continuity_counter =
1672                     ( p_sys->i_null_continuity_counter + 1 ) % 16;
1673
1674                 BufferChainAppend( c, p_null );
1675             }
1676
1677             i_rest = ( i_rest + i_mod ) % i_packets;
1678         }
1679     }
1680     else if( i_packets > i_packets_max && i_packets_max > 0 )
1681     {
1682         block_t *p_pk;
1683         int           i;
1684
1685         /* Arg, we need to drop packets, I don't do something clever (like
1686          * dropping complete pid, b frames, ... ), I just get the right amount
1687          * of packets and discard the others */
1688         msg_Warn( p_mux,
1689                   "packets=%d but max=%d -> removing %d packets -> stream broken",
1690                   i_packets, i_packets_max, i_packets - i_packets_max );
1691
1692         BufferChainInit( c );
1693         for( i = 0; i < i_packets_max; i++ )
1694         {
1695             BufferChainAppend( c, BufferChainGet( &s ) );
1696         }
1697
1698         while( ( p_pk = BufferChainGet( &s ) ) )
1699         {
1700             sout_BufferDelete( p_mux->p_sout, p_pk );
1701         }
1702     }
1703 }
1704 #endif
1705
1706 static void PEStoTS( sout_instance_t *p_sout,
1707                      sout_buffer_chain_t *c, block_t *p_pes,
1708                      ts_stream_t *p_stream )
1709 {
1710     uint8_t *p_data;
1711     int     i_size;
1712     int     b_new_pes;
1713
1714     /* get PES total size */
1715     i_size = p_pes->i_buffer;
1716     p_data = p_pes->p_buffer;
1717
1718     b_new_pes = VLC_TRUE;
1719
1720     for( ;; )
1721     {
1722         int           b_adaptation_field;
1723         int           i_copy;
1724         block_t *p_ts;
1725
1726         p_ts = block_New( p_sout, 188 );
1727         /* write header
1728          * 8b   0x47    sync byte
1729          * 1b           transport_error_indicator
1730          * 1b           payload_unit_start
1731          * 1b           transport_priority
1732          * 13b          pid
1733          * 2b           transport_scrambling_control
1734          * 2b           if adaptation_field 0x03 else 0x01
1735          * 4b           continuity_counter
1736          */
1737
1738         i_copy    = __MIN( i_size, 184 );
1739         b_adaptation_field = i_size < 184 ? VLC_TRUE : VLC_FALSE;
1740
1741         p_ts->p_buffer[0] = 0x47;
1742         p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
1743                             ( ( p_stream->i_pid >> 8 )&0x1f );
1744         p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1745         p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
1746                             p_stream->i_continuity_counter;
1747
1748         b_new_pes = VLC_FALSE;
1749         p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1750
1751         if( b_adaptation_field )
1752         {
1753             int i_stuffing = 184 - i_copy;
1754             int i;
1755
1756             p_ts->p_buffer[4] = i_stuffing - 1;
1757             if( i_stuffing > 1 )
1758             {
1759                 p_ts->p_buffer[5] = 0x00;
1760                 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1761                 {
1762                     p_ts->p_buffer[i] = 0xff;
1763                 }
1764             }
1765         }
1766         /* copy payload */
1767         memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
1768         p_data += i_copy;
1769         i_size -= i_copy;
1770
1771         BufferChainAppend( c, p_ts );
1772
1773         if( i_size <= 0 )
1774         {
1775             block_t *p_next = p_pes->p_next;
1776
1777             p_pes->p_next = NULL;
1778             block_Release( p_pes );
1779             if( p_next == NULL )
1780             {
1781                 break;
1782             }
1783             b_new_pes = VLC_TRUE;
1784             p_pes = p_next;
1785             i_size = p_pes->i_buffer;
1786             p_data = p_pes->p_buffer;
1787         }
1788     }
1789
1790     return;
1791 }
1792
1793 static block_t *WritePSISection( sout_instance_t *p_sout,
1794                                        dvbpsi_psi_section_t* p_section )
1795 {
1796     block_t   *p_psi, *p_first = NULL;
1797
1798
1799     while( p_section )
1800     {
1801         int             i_size;
1802
1803         i_size =  (uint32_t)( p_section->p_payload_end - p_section->p_data )+
1804                   ( p_section->b_syntax_indicator ? 4 : 0 );
1805
1806         p_psi = block_New( p_sout, i_size + 1 );
1807         p_psi->i_pts = 0;
1808         p_psi->i_dts = 0;
1809         p_psi->i_length = 0;
1810         p_psi->i_buffer = i_size + 1;
1811
1812         p_psi->p_buffer[0] = 0; // pointer
1813         memcpy( p_psi->p_buffer + 1,
1814                 p_section->p_data,
1815                 i_size );
1816
1817         block_ChainAppend( &p_first, p_psi );
1818
1819         p_section = p_section->p_next;
1820     }
1821
1822     return( p_first );
1823 }
1824
1825 static void GetPAT( sout_mux_t *p_mux,
1826                     sout_buffer_chain_t *c )
1827 {
1828     sout_mux_sys_t       *p_sys = p_mux->p_sys;
1829     block_t        *p_pat;
1830     dvbpsi_pat_t         pat;
1831     dvbpsi_psi_section_t *p_section;
1832
1833     dvbpsi_InitPAT( &pat, p_sys->i_tsid, p_sys->i_pat_version_number,
1834                     1 );      // b_current_next
1835     /* add all program (only one) */
1836     dvbpsi_PATAddProgram( &pat,
1837                           p_sys->i_pmt_program_number,                    // i_number
1838                           p_sys->pmt.i_pid );   // i_pid
1839
1840     p_section = dvbpsi_GenPATSections( &pat,
1841                                        0 );     // max program per section
1842
1843     p_pat = WritePSISection( p_mux->p_sout, p_section );
1844
1845     PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
1846
1847     dvbpsi_DeletePSISections( p_section );
1848     dvbpsi_EmptyPAT( &pat );
1849 }
1850
1851 static uint32_t GetDescriptorLength24b( int i_length )
1852 {
1853     uint32_t i_l1, i_l2, i_l3;
1854
1855     i_l1 = i_length&0x7f;
1856     i_l2 = ( i_length >> 7 )&0x7f;
1857     i_l3 = ( i_length >> 14 )&0x7f;
1858
1859     return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
1860 }
1861
1862 static void GetPMT( sout_mux_t *p_mux,
1863                     sout_buffer_chain_t *c )
1864 {
1865     sout_mux_sys_t  *p_sys = p_mux->p_sys;
1866     block_t   *p_pmt;
1867
1868     dvbpsi_pmt_t        pmt;
1869     dvbpsi_pmt_es_t     *p_es;
1870     dvbpsi_psi_section_t *p_section;
1871
1872     int                 i_stream;
1873
1874     dvbpsi_InitPMT( &pmt,
1875                     p_sys->i_pmt_program_number,   // program number
1876                     p_sys->i_pmt_version_number,
1877                     1,      // b_current_next
1878                     p_sys->i_pcr_pid );
1879
1880     if( p_sys->i_mpeg4_streams > 0 )
1881     {
1882         uint8_t iod[4096];
1883         bits_buffer_t bits;
1884         bits_buffer_t bits_fix_IOD;
1885
1886         /* Make valgrind happy : it works at byte level not bit one so
1887          * bit_write confuse it (but DON'T CHANGE the way that bit_write is
1888          * working (needed when fixing some bits) */
1889         memset( iod, 0, 4096 );
1890
1891         bits_initwrite( &bits, 4096, iod );
1892         // IOD_label_scope
1893         bits_write( &bits, 8,   0x11 );
1894         // IOD_label
1895         bits_write( &bits, 8,   0x01 );
1896         // InitialObjectDescriptor
1897         bits_align( &bits );
1898         bits_write( &bits, 8,   0x02 );     // tag
1899         bits_fix_IOD = bits;    // save states to fix length later
1900         bits_write( &bits, 24,
1901             GetDescriptorLength24b( 0 ) ); // variable length (fixed later)
1902         bits_write( &bits, 10,  0x01 );     // ObjectDescriptorID
1903         bits_write( &bits, 1,   0x00 );     // URL Flag
1904         bits_write( &bits, 1,   0x00 );     // includeInlineProfileLevelFlag
1905         bits_write( &bits, 4,   0x0f );     // reserved
1906         bits_write( &bits, 8,   0xff );     // ODProfile (no ODcapability )
1907         bits_write( &bits, 8,   0xff );     // sceneProfile
1908         bits_write( &bits, 8,   0xfe );     // audioProfile (unspecified)
1909         bits_write( &bits, 8,   0xfe );     // visualProfile( // )
1910         bits_write( &bits, 8,   0xff );     // graphicProfile (no )
1911         for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1912         {
1913             ts_stream_t *p_stream;
1914             p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1915
1916             if( p_stream->i_stream_id == 0xfa ||
1917                 p_stream->i_stream_id == 0xfb ||
1918                 p_stream->i_stream_id == 0xfe )
1919             {
1920                 bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
1921                 /* ES descriptor */
1922                 bits_align( &bits );
1923                 bits_write( &bits, 8,   0x03 );     // ES_DescrTag
1924                 bits_fix_ESDescr = bits;
1925                 bits_write( &bits, 24,
1926                             GetDescriptorLength24b( 0 ) ); // variable size
1927                 bits_write( &bits, 16,  p_stream->i_es_id );
1928                 bits_write( &bits, 1,   0x00 );     // streamDependency
1929                 bits_write( &bits, 1,   0x00 );     // URL Flag
1930                 bits_write( &bits, 1,   0x00 );     // OCRStreamFlag
1931                 bits_write( &bits, 5,   0x1f );     // streamPriority
1932
1933                 // DecoderConfigDesciptor
1934                 bits_align( &bits );
1935                 bits_write( &bits, 8,   0x04 ); // DecoderConfigDescrTag
1936                 bits_fix_Decoder = bits;
1937                 bits_write( &bits, 24,  GetDescriptorLength24b( 0 ) );
1938                 if( p_stream->i_stream_type == 0x10 )
1939                 {
1940                     bits_write( &bits, 8, 0x20 );   // Visual 14496-2
1941                     bits_write( &bits, 6, 0x04 );   // VisualStream
1942                 }
1943                 else if( p_stream->i_stream_type == 0x1b )
1944                 {
1945                     bits_write( &bits, 8, 0x21 );   // Visual 14496-2
1946                     bits_write( &bits, 6, 0x04 );   // VisualStream
1947                 }
1948                 else if( p_stream->i_stream_type == 0x11  || p_stream->i_stream_type == 0x0f )
1949                 {
1950                     bits_write( &bits, 8, 0x40 );   // Audio 14496-3
1951                     bits_write( &bits, 6, 0x05 );   // AudioStream
1952                 }
1953                 else if( p_stream->i_stream_type == 0x12 &&
1954                          p_stream->i_codec == VLC_FOURCC('s','u','b','t') )
1955                 {
1956                     bits_write( &bits, 8, 0x0B );   // Text Stream
1957                     bits_write( &bits, 6, 0x04 );   // VisualStream
1958                 }
1959                 else
1960                 {
1961                     bits_write( &bits, 8, 0x00 );
1962                     bits_write( &bits, 6, 0x00 );
1963
1964                     msg_Err( p_mux->p_sout,"Unsupported stream_type => "
1965                              "broken IOD" );
1966                 }
1967                 bits_write( &bits, 1,   0x00 );     // UpStream
1968                 bits_write( &bits, 1,   0x01 );     // reserved
1969                 bits_write( &bits, 24,  1024 * 1024 );  // bufferSizeDB
1970                 bits_write( &bits, 32,  0x7fffffff );   // maxBitrate
1971                 bits_write( &bits, 32,  0 );            // avgBitrate
1972
1973                 if( p_stream->i_decoder_specific_info > 0 )
1974                 {
1975                     int i;
1976                     // DecoderSpecificInfo
1977                     bits_align( &bits );
1978                     bits_write( &bits, 8,   0x05 ); // tag
1979                     bits_write( &bits, 24, GetDescriptorLength24b(
1980                                 p_stream->i_decoder_specific_info ) );
1981                     for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
1982                     {
1983                         bits_write( &bits, 8,
1984                             ((uint8_t*)p_stream->p_decoder_specific_info)[i] );
1985                     }
1986                 }
1987                 /* fix Decoder length */
1988                 bits_write( &bits_fix_Decoder, 24,
1989                             GetDescriptorLength24b( bits.i_data -
1990                             bits_fix_Decoder.i_data - 3 ) );
1991
1992                 /* SLConfigDescriptor : predifined (0x01) */
1993                 bits_align( &bits );
1994                 bits_write( &bits, 8,   0x06 ); // tag
1995                 bits_write( &bits, 24,  GetDescriptorLength24b( 8 ) );
1996                 bits_write( &bits, 8,   0x01 ); // predefined
1997                 bits_write( &bits, 1,   0 );   // durationFlag
1998                 bits_write( &bits, 32,  0 );   // OCRResolution
1999                 bits_write( &bits, 8,   0 );   // OCRLength
2000                 bits_write( &bits, 8,   0 );   // InstantBitrateLength
2001                 bits_align( &bits );
2002
2003                 /* fix ESDescr length */
2004                 bits_write( &bits_fix_ESDescr, 24,
2005                             GetDescriptorLength24b( bits.i_data -
2006                             bits_fix_ESDescr.i_data - 3 ) );
2007             }
2008         }
2009         bits_align( &bits );
2010         /* fix IOD length */
2011         bits_write( &bits_fix_IOD, 24,
2012                     GetDescriptorLength24b( bits.i_data -
2013                                             bits_fix_IOD.i_data - 3 ) );
2014         dvbpsi_PMTAddDescriptor( &pmt, 0x1d, bits.i_data, bits.p_data );
2015     }
2016
2017     for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
2018     {
2019         ts_stream_t *p_stream;
2020
2021         p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
2022
2023         p_es = dvbpsi_PMTAddES( &pmt, p_stream->i_stream_type,
2024                                 p_stream->i_pid );
2025         if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
2026         {
2027             uint8_t     es_id[2];
2028
2029             /* SL descriptor */
2030             es_id[0] = (p_stream->i_es_id >> 8)&0xff;
2031             es_id[1] = (p_stream->i_es_id)&0xff;
2032             dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
2033         }
2034         else if( p_stream->i_stream_type == 0xa0 )
2035         {
2036             uint8_t data[512];
2037             int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
2038
2039             /* private DIV3 descripor */
2040             memcpy( &data[0], &p_stream->i_bih_codec, 4 );
2041             data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
2042             data[5] = ( p_stream->i_bih_width      )&0xff;
2043             data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
2044             data[7] = ( p_stream->i_bih_height     )&0xff;
2045             data[8] = ( i_extra >> 8 )&0xff;
2046             data[9] = ( i_extra      )&0xff;
2047             if( i_extra > 0 )
2048             {
2049                 memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
2050             }
2051
2052             /* 0xa0 is private */
2053             dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
2054         }
2055         else if( p_stream->i_stream_type == 0x81 )
2056         {
2057             uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
2058
2059             /* "registration" descriptor : "AC-3" */
2060             dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
2061         }
2062         else if( p_stream->i_codec == VLC_FOURCC('d','t','s',' ') )
2063         {
2064             /* DTS registration descriptor (ETSI TS 101 154 Annex F) */
2065
2066             /* DTS format identifier, frame size 1024 - FIXME */
2067             uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
2068             dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
2069         }
2070         else if( p_stream->i_codec == VLC_FOURCC('t','e','l','x') )
2071         {
2072             dvbpsi_PMTESAddDescriptor( p_es, 0x56,
2073                                        p_stream->i_decoder_specific_info,
2074                                        p_stream->p_decoder_specific_info );
2075         }
2076 #ifdef _DVBPSI_DR_59_H_
2077         else if( p_stream->i_codec == VLC_FOURCC('d','v','b','s') )
2078         {
2079             /* DVB subtitles */
2080             dvbpsi_subtitling_dr_t descr;
2081             dvbpsi_subtitle_t sub;
2082             dvbpsi_descriptor_t *p_descr;
2083
2084             memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
2085             sub.i_subtitling_type = 0x10; /* no aspect-ratio criticality */
2086             sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
2087             sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
2088
2089             descr.i_subtitles_number = 1;
2090             descr.p_subtitle[0] = sub;
2091
2092             p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
2093             /* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
2094             dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
2095                                        p_descr->i_length, p_descr->p_data );
2096             continue;
2097         }
2098 #endif /* _DVBPSI_DR_59_H_ */
2099
2100         if( p_stream->lang[0] != 0 )
2101         {
2102             uint8_t data[4];
2103
2104             /* I construct the content myself, way faster than looking at
2105              * over complicated/mind broken libdvbpsi way */
2106             data[0] = p_stream->lang[0];
2107             data[1] = p_stream->lang[1];
2108             data[2] = p_stream->lang[2];
2109             data[3] = 0x00; /* audio type: 0x00 undefined */
2110
2111             dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4, data );
2112         }
2113     }
2114
2115     p_section = dvbpsi_GenPMTSections( &pmt );
2116
2117     p_pmt = WritePSISection( p_mux->p_sout, p_section );
2118
2119     PEStoTS( p_mux->p_sout, c, p_pmt, &p_sys->pmt );
2120
2121     dvbpsi_DeletePSISections( p_section );
2122     dvbpsi_EmptyPMT( &pmt );
2123 }