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Qt: do not show open options in both normal and advanced UI
[vlc.git] / modules / mux / mpeg / ts.c
blob0ba3a21402651e46dc12c2555435a149b26b5ba0
1 /*****************************************************************************
2 * ts.c: MPEG-II TS Muxer
3 *****************************************************************************
4 * Copyright (C) 2001-2005 the VideoLAN team
5 * $Id$
6 *
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Eric Petit <titer@videolan.org>
9 * Jean-Paul Saman <jpsaman #_at_# m2x.nl>
10 * Wallace Wadge <wwadge #_at_# gmail.com>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
26
27 /*****************************************************************************
28 * Preamble
29 *****************************************************************************/
30
31 #ifdef HAVE_CONFIG_H
32 # include "config.h"
33 #endif
34
35 #include <limits.h>
36
37 #include <vlc_common.h>
38 #include <vlc_plugin.h>
39 #include <vlc_sout.h>
40 #include <vlc_block.h>
41 #include <vlc_rand.h>
42
43 #include <vlc_iso_lang.h>
44
45 #include "bits.h"
46 #include "pes.h"
47 #include "csa.h"
48
49 # include <dvbpsi/dvbpsi.h>
50 # include <dvbpsi/demux.h>
51 # include <dvbpsi/descriptor.h>
52 # include <dvbpsi/pat.h>
53 # include <dvbpsi/pmt.h>
54 # include <dvbpsi/sdt.h>
55 # include <dvbpsi/dr.h>
56 # include <dvbpsi/psi.h>
57
58 /*
59 * TODO:
60 * - check PCR frequency requirement
61 * - check PAT/PMT " "
62 * - check PCR/PCR "soft"
63 * - check if "registration" descriptor : "AC-3" should be a program
64 * descriptor or an es one. (xine want an es one)
65 *
66 * - remove creation of PAT/PMT without dvbpsi
67 * - ?
68 * FIXME:
69 * - subtitle support is far from perfect. I expect some subtitles drop
70 * if they arrive a bit late
71 * (We cannot rely on the fact that the fifo should be full)
72 */
73
74 /*****************************************************************************
75 * Callback prototypes
76 *****************************************************************************/
77 static int ChangeKeyCallback ( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * );
78 static int ActiveKeyCallback ( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * );
79
80 /*****************************************************************************
81 * Module descriptor
82 *****************************************************************************/
83 static int Open ( vlc_object_t * );
84 static void Close ( vlc_object_t * );
85
86 #define VPID_TEXT N_("Video PID")
87 #define VPID_LONGTEXT N_("Assign a fixed PID to the video stream. The PCR " \
88 "PID will automatically be the video.")
89 #define APID_TEXT N_("Audio PID")
90 #define APID_LONGTEXT N_("Assign a fixed PID to the audio stream.")
91 #define SPUPID_TEXT N_("SPU PID")
92 #define SPUPID_LONGTEXT N_("Assign a fixed PID to the SPU.")
93 #define PMTPID_TEXT N_("PMT PID")
94 #define PMTPID_LONGTEXT N_("Assign a fixed PID to the PMT")
95 #define TSID_TEXT N_("TS ID")
96 #define TSID_LONGTEXT N_("Assign a fixed Transport Stream ID.")
97 #define NETID_TEXT N_("NET ID")
98 #define NETID_LONGTEXT N_("Assign a fixed Network ID (for SDT table)")
99
100 #define PMTPROG_TEXT N_("PMT Program numbers")
101 #define PMTPROG_LONGTEXT N_("Assign a program number to each PMT. This " \
102 "requires \"Set PID to ID of ES\" to be enabled." )
103
104 #define MUXPMT_TEXT N_("Mux PMT (requires --sout-ts-es-id-pid)")
105 #define MUXPMT_LONGTEXT N_("Define the pids to add to each pmt. This " \
106 "requires \"Set PID to ID of ES\" to be enabled." )
107
108 #define SDTDESC_TEXT N_("SDT Descriptors (requires --sout-ts-es-id-pid)")
109 #define SDTDESC_LONGTEXT N_("Defines the descriptors of each SDT. This" \
110 "requires \"Set PID to ID of ES\" to be enabled." )
111
112 #define PID_TEXT N_("Set PID to ID of ES")
113 #define PID_LONGTEXT N_("Sets PID to the ID if the incoming ES. This is for " \
114 "use with --ts-es-id-pid, and allows having the same PIDs in the input " \
115 "and output streams.")
116
117 #define ALIGNMENT_TEXT N_("Data alignment")
118 #define ALIGNMENT_LONGTEXT N_("Enforces alignment of all access units on " \
119 "PES boundaries. Disabling this might save some bandwidth but introduce incompatibilities.")
120
121 #define SHAPING_TEXT N_("Shaping delay (ms)")
122 #define SHAPING_LONGTEXT N_("Cut the " \
123 "stream in slices of the given duration, and ensure a constant bitrate " \
124 "between the two boundaries. This avoids having huge bitrate peaks, " \
125 "especially for reference frames." )
126
127 #define KEYF_TEXT N_("Use keyframes")
128 #define KEYF_LONGTEXT N_("If enabled, and shaping is specified, " \
129 "the TS muxer will place the boundaries at the end of I pictures. In " \
130 "that case, the shaping duration given by the user is a worse case " \
131 "used when no reference frame is available. This enhances the efficiency " \
132 "of the shaping algorithm, since I frames are usually the biggest " \
133 "frames in the stream.")
134
135 #define PCR_TEXT N_("PCR interval (ms)")
136 #define PCR_LONGTEXT N_("Set at which interval " \
137 "PCRs (Program Clock Reference) will be sent (in milliseconds). " \
138 "This value should be below 100ms. (default is 70ms).")
139
140 #define BMIN_TEXT N_( "Minimum B (deprecated)")
141 #define BMIN_LONGTEXT N_( "This setting is deprecated and not used anymore" )
142
143 #define BMAX_TEXT N_( "Maximum B (deprecated)")
144 #define BMAX_LONGTEXT N_( "This setting is deprecated and not used anymore")
145
146 #define DTS_TEXT N_("DTS delay (ms)")
147 #define DTS_LONGTEXT N_("Delay the DTS (decoding time " \
148 "stamps) and PTS (presentation timestamps) of the data in the " \
149 "stream, compared to the PCRs. This allows for some buffering inside " \
150 "the client decoder.")
151
152 #define ACRYPT_TEXT N_("Crypt audio")
153 #define ACRYPT_LONGTEXT N_("Crypt audio using CSA")
154 #define VCRYPT_TEXT N_("Crypt video")
155 #define VCRYPT_LONGTEXT N_("Crypt video using CSA")
156
157 #define CK_TEXT N_("CSA Key")
158 #define CK_LONGTEXT N_("CSA encryption key. This must be a " \
159 "16 char string (8 hexadecimal bytes).")
160
161 #define CK2_TEXT N_("Second CSA Key")
162 #define CK2_LONGTEXT N_("The even CSA encryption key. This must be a " \
163 "16 char string (8 hexadecimal bytes).")
164
165 #define CU_TEXT N_("CSA Key in use")
166 #define CU_LONGTEXT N_("CSA encryption key used. It can be the odd/first/1 " \
167 "(default) or the even/second/2 one.")
168
169 #define CPKT_TEXT N_("Packet size in bytes to encrypt")
170 #define CPKT_LONGTEXT N_("Size of the TS packet to encrypt. " \
171 "The encryption routines subtract the TS-header from the value before " \
172 "encrypting." )
173
174 #define SOUT_CFG_PREFIX "sout-ts-"
175 #define MAX_PMT 64 /* Maximum number of programs. FIXME: I just chose an arbitrary number. Where is the maximum in the spec? */
176 #define MAX_PMT_PID 64 /* Maximum pids in each pmt. FIXME: I just chose an arbitrary number. Where is the maximum in the spec? */
177
178 vlc_module_begin ()
179 set_description( N_("TS muxer (libdvbpsi)") )
180 set_shortname( "MPEG-TS")
181 set_category( CAT_SOUT )
182 set_subcategory( SUBCAT_SOUT_MUX )
183 set_capability( "sout mux", 120 )
184 add_shortcut( "ts" )
185
186 add_integer( SOUT_CFG_PREFIX "pid-video", 0,VPID_TEXT, VPID_LONGTEXT,
187 true )
188 add_integer( SOUT_CFG_PREFIX "pid-audio", 0, APID_TEXT,
189 APID_LONGTEXT, true )
190 add_integer( SOUT_CFG_PREFIX "pid-spu", 0, SPUPID_TEXT,
191 SPUPID_LONGTEXT, true )
192 add_integer( SOUT_CFG_PREFIX "pid-pmt", 0, PMTPID_TEXT,
193 PMTPID_LONGTEXT, true )
194 add_integer( SOUT_CFG_PREFIX "tsid", 0, TSID_TEXT,
195 TSID_LONGTEXT, true )
196 #ifdef HAVE_DVBPSI_SDT
197 add_integer( SOUT_CFG_PREFIX "netid", 0, NETID_TEXT,
198 NETID_LONGTEXT, true )
199 #endif
200 add_string( SOUT_CFG_PREFIX "program-pmt", NULL, PMTPROG_TEXT,
201 PMTPROG_LONGTEXT, true )
202 add_bool( SOUT_CFG_PREFIX "es-id-pid", false, PID_TEXT, PID_LONGTEXT,
203 true )
204 add_string( SOUT_CFG_PREFIX "muxpmt", NULL, MUXPMT_TEXT, MUXPMT_LONGTEXT, true )
205 #ifdef HAVE_DVBPSI_SDT
206 add_string( SOUT_CFG_PREFIX "sdtdesc", NULL, SDTDESC_TEXT, SDTDESC_LONGTEXT, true )
207 #endif
208 add_bool( SOUT_CFG_PREFIX "alignment", true, ALIGNMENT_TEXT,
209 ALIGNMENT_LONGTEXT, true )
210
211 add_integer( SOUT_CFG_PREFIX "shaping", 200, SHAPING_TEXT,
212 SHAPING_LONGTEXT, true )
213 add_bool( SOUT_CFG_PREFIX "use-key-frames", false, KEYF_TEXT,
214 KEYF_LONGTEXT, true )
215
216 add_integer( SOUT_CFG_PREFIX "pcr", 70, PCR_TEXT, PCR_LONGTEXT,
217 true )
218 add_integer( SOUT_CFG_PREFIX "bmin", 0, BMIN_TEXT, BMIN_LONGTEXT,
219 true )
220 add_integer( SOUT_CFG_PREFIX "bmax", 0, BMAX_TEXT, BMAX_LONGTEXT,
221 true )
222 add_integer( SOUT_CFG_PREFIX "dts-delay", 400, DTS_TEXT,
223 DTS_LONGTEXT, true )
224
225 add_bool( SOUT_CFG_PREFIX "crypt-audio", true, ACRYPT_TEXT,
226 ACRYPT_LONGTEXT, true )
227 add_bool( SOUT_CFG_PREFIX "crypt-video", true, VCRYPT_TEXT,
228 VCRYPT_LONGTEXT, true )
229
230 add_string( SOUT_CFG_PREFIX "csa-ck", NULL, CK_TEXT, CK_LONGTEXT,
231 true )
232 add_string( SOUT_CFG_PREFIX "csa2-ck", NULL, CK2_TEXT, CK2_LONGTEXT,
233 true )
234 add_string( SOUT_CFG_PREFIX "csa-use", "1", CU_TEXT, CU_LONGTEXT,
235 true )
236 add_integer( SOUT_CFG_PREFIX "csa-pkt", 188, CPKT_TEXT, CPKT_LONGTEXT, true )
237
238 set_callbacks( Open, Close )
239 vlc_module_end ()
240
241 /*****************************************************************************
242 * Local data structures
243 *****************************************************************************/
244 static const char *const ppsz_sout_options[] = {
245 "pid-video", "pid-audio", "pid-spu", "pid-pmt", "tsid",
246 #ifdef HAVE_DVBPSI_SDT
247 "netid", "sdtdesc",
248 #endif
249 "es-id-pid", "shaping", "pcr", "bmin", "bmax", "use-key-frames",
250 "dts-delay", "csa-ck", "csa2-ck", "csa-use", "csa-pkt", "crypt-audio", "crypt-video",
251 "muxpmt", "program-pmt", "alignment",
252 NULL
253 };
254
255 typedef struct pmt_map_t /* Holds the mapping between the pmt-pid/pmt table */
256 {
257 int i_pid;
258 unsigned long i_prog;
259 } pmt_map_t;
260
261 typedef struct sdt_desc_t
262 {
263 char *psz_provider;
264 char *psz_service_name; /* name of program */
265 } sdt_desc_t;
266
267 typedef struct
268 {
269 int i_depth;
270 block_t *p_first;
271 block_t **pp_last;
272 } sout_buffer_chain_t;
273
274 static inline void BufferChainInit ( sout_buffer_chain_t *c )
275 {
276 c->i_depth = 0;
277 c->p_first = NULL;
278 c->pp_last = &c->p_first;
279 }
280
281 static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
282 {
283 *c->pp_last = b;
284 c->i_depth++;
285
286 while( b->p_next )
287 {
288 b = b->p_next;
289 c->i_depth++;
290 }
291 c->pp_last = &b->p_next;
292 }
293
294 static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
295 {
296 block_t *b = c->p_first;
297
298 if( b )
299 {
300 c->i_depth--;
301 c->p_first = b->p_next;
302
303 if( c->p_first == NULL )
304 {
305 c->pp_last = &c->p_first;
306 }
307
308 b->p_next = NULL;
309 }
310 return b;
311 }
312
313 static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
314 {
315 block_t *b = c->p_first;
316
317 return b;
318 }
319
320 static inline void BufferChainClean( sout_buffer_chain_t *c )
321 {
322 block_t *b;
323
324 while( ( b = BufferChainGet( c ) ) )
325 {
326 block_Release( b );
327 }
328 BufferChainInit( c );
329 }
330
331 typedef struct ts_stream_t
332 {
333 int i_pid;
334 vlc_fourcc_t i_codec;
335
336 int i_stream_type;
337 int i_stream_id;
338 int i_continuity_counter;
339 bool b_discontinuity;
340
341 /* to be used for carriege of DIV3 */
342 vlc_fourcc_t i_bih_codec;
343 int i_bih_width, i_bih_height;
344
345 /* Specific to mpeg4 in mpeg2ts */
346 int i_es_id;
347
348 int i_decoder_specific_info;
349 uint8_t *p_decoder_specific_info;
350
351 /* language is iso639-2T */
352 int i_langs;
353 uint8_t *lang;
354
355 sout_buffer_chain_t chain_pes;
356 mtime_t i_pes_dts;
357 mtime_t i_pes_length;
358 int i_pes_used;
359 bool b_key_frame;
360
361 } ts_stream_t;
362
363 struct sout_mux_sys_t
364 {
365 int i_pcr_pid;
366 sout_input_t *p_pcr_input;
367
368 vlc_mutex_t csa_lock;
369
370 int i_audio_bound;
371 int i_video_bound;
372
373 bool b_es_id_pid;
374 bool b_sdt;
375 int i_pid_video;
376 int i_pid_audio;
377 int i_pid_spu;
378 int i_pid_free; /* first usable pid */
379
380 int i_tsid;
381 int i_netid;
382 int i_num_pmt;
383 int i_pmtslots;
384 int i_pat_version_number;
385 ts_stream_t pat;
386
387 int i_pmt_version_number;
388 ts_stream_t pmt[MAX_PMT];
389 pmt_map_t pmtmap[MAX_PMT_PID];
390 int i_pmt_program_number[MAX_PMT];
391 sdt_desc_t sdt_descriptors[MAX_PMT];
392 bool b_data_alignment;
393
394 int i_mpeg4_streams;
395
396 int i_null_continuity_counter; /* Needed ? */
397 ts_stream_t sdt;
398 dvbpsi_pmt_t *dvbpmt;
399
400 /* for TS building */
401 int64_t i_bitrate_min;
402 int64_t i_bitrate_max;
403
404 int64_t i_shaping_delay;
405 int64_t i_pcr_delay;
406
407 int64_t i_dts_delay;
408
409 bool b_use_key_frames;
410
411 mtime_t i_pcr; /* last PCR emited */
412
413 csa_t *csa;
414 int i_csa_pkt_size;
415 bool b_crypt_audio;
416 bool b_crypt_video;
417 };
418
419 /* Reserve a pid and return it */
420 static int AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
421 {
422 int i_pid;
423 if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
424 {
425 i_pid = p_sys->i_pid_video;
426 p_sys->i_pid_video = 0;
427 }
428 else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
429 {
430 i_pid = p_sys->i_pid_audio;
431 p_sys->i_pid_audio = 0;
432 }
433 else if ( i_cat == SPU_ES && p_sys->i_pid_spu )
434 {
435 i_pid = p_sys->i_pid_spu;
436 p_sys->i_pid_spu = 0;
437 }
438 else
439 {
440 i_pid = ++p_sys->i_pid_free;
441 }
442 return i_pid;
443 }
444
445 static int pmtcompare( const void *pa, const void *pb )
446 {
447 if ( ((pmt_map_t *)pa)->i_pid < ((pmt_map_t *)pb)->i_pid )
448 return -1;
449 else if ( ((pmt_map_t *)pa)->i_pid > ((pmt_map_t *)pb)->i_pid )
450 return 1;
451 else
452 return 0;
453 }
454
455 static int intcompare( const void *pa, const void *pb )
456 {
457 if ( *(int *)pa < *(int *)pb )
458 return -1;
459 else if ( *(int *)pa > *(int *)pb )
460 return 1;
461 else
462 return 0;
463 }
464
465 /*****************************************************************************
466 * Local prototypes
467 *****************************************************************************/
468 static int Control ( sout_mux_t *, int, va_list );
469 static int AddStream( sout_mux_t *, sout_input_t * );
470 static int DelStream( sout_mux_t *, sout_input_t * );
471 static int Mux ( sout_mux_t * );
472
473 static block_t *FixPES( sout_mux_t *p_mux, block_fifo_t *p_fifo );
474 static block_t *Add_ADTS( block_t *, es_format_t * );
475 static void TSSchedule ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
476 mtime_t i_pcr_length, mtime_t i_pcr_dts );
477 static void TSDate ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
478 mtime_t i_pcr_length, mtime_t i_pcr_dts );
479 static void GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
480 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
481
482 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, bool b_pcr );
483 static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
484
485 static void PEStoTS ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
486
487 /*****************************************************************************
488 * Open:
489 *****************************************************************************/
490 static int Open( vlc_object_t *p_this )
491 {
492 sout_mux_t *p_mux =(sout_mux_t*)p_this;
493 sout_mux_sys_t *p_sys = NULL;
494 vlc_value_t val;
495 int i;
496
497 config_ChainParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
498
499 p_sys = malloc( sizeof( sout_mux_sys_t ) );
500 if( !p_sys )
501 return VLC_ENOMEM;
502 p_sys->i_pmtslots = p_sys->b_sdt = 0;
503 p_sys->i_num_pmt = 1;
504 p_sys->dvbpmt = NULL;
505 memset( &p_sys->pmtmap, 0, sizeof(p_sys->pmtmap) );
506
507 vlc_mutex_init( &p_sys->csa_lock );
508
509 p_mux->pf_control = Control;
510 p_mux->pf_addstream = AddStream;
511 p_mux->pf_delstream = DelStream;
512 p_mux->pf_mux = Mux;
513 p_mux->p_sys = p_sys;
514
515 for ( i = 0; i < MAX_PMT; i++ )
516 p_sys->sdt_descriptors[i].psz_service_name
517 = p_sys->sdt_descriptors[i].psz_provider = NULL;
518 memset( p_sys->sdt_descriptors, 0, sizeof(sdt_desc_t) );
519
520 p_sys->i_audio_bound = 0;
521 p_sys->i_video_bound = 0;
522
523 p_sys->b_es_id_pid = var_GetBool( p_mux, SOUT_CFG_PREFIX "es-id-pid" );
524
525 var_Get( p_mux, SOUT_CFG_PREFIX "muxpmt", &val );
526 /*
527 fetch string of pmts. Here's a sample: --sout-ts-muxpmt="0x451,0x200,0x28a,0x240,,0x450,0x201,0x28b,0x241,,0x452,0x202,0x28c,0x242"
528 This would mean 0x451, 0x200, 0x28a, 0x240 would fall under one pmt (program), 0x450,0x201,0x28b,0x241 would fall under another
529 */
530 if( val.psz_string != NULL && *val.psz_string )
531 {
532 char *psz_next;
533 char *psz = val.psz_string;
534 uint16_t i_pid;
535 psz_next = psz;
536
537 while( psz != NULL )
538 {
539 i_pid = strtoul( psz, &psz_next, 0 );
540
541 if ( psz_next[0] != '\0' )
542 psz = &psz_next[1];
543 if ( i_pid == 0 )
544 {
545 p_sys->i_num_pmt++;
546 if ( p_sys->i_num_pmt > MAX_PMT )
547 {
548 msg_Err( p_mux,
549 "Number of PMTs greater than compiled maximum (%d)", MAX_PMT );
550 p_sys->i_num_pmt = MAX_PMT;
551 }
552 }
553 else
554 {
555 p_sys->pmtmap[p_sys->i_pmtslots].i_pid = i_pid;
556 p_sys->pmtmap[p_sys->i_pmtslots].i_prog = p_sys->i_num_pmt - 1;
557 p_sys->i_pmtslots++;
558 if ( p_sys->i_pmtslots > MAX_PMT_PID )
559 {
560 msg_Err( p_mux,
561 "Number of pids in PMT greater than compiled maximum (%d)",
562 MAX_PMT_PID );
563 p_sys->i_pmtslots = MAX_PMT_PID;
564 }
565 }
566
567 /* Now sort according to pids for fast search later on */
568 qsort( (void *)p_sys->pmtmap, p_sys->i_pmtslots,
569 sizeof(pmt_map_t), &pmtcompare );
570 if ( !*psz_next )
571 psz = NULL;
572 }
573 }
574 free( val.psz_string );
575
576 unsigned short subi[3];
577 vlc_rand_bytes(subi, sizeof(subi));
578 p_sys->i_pat_version_number = nrand48(subi) & 0x1f;
579 p_sys->pat.i_pid = 0;
580 p_sys->pat.i_continuity_counter = 0;
581 p_sys->pat.b_discontinuity = false;
582
583 var_Get( p_mux, SOUT_CFG_PREFIX "tsid", &val );
584 if ( val.i_int )
585 p_sys->i_tsid = val.i_int;
586 else
587 p_sys->i_tsid = nrand48(subi) & 0xffff;
588
589 p_sys->i_netid = nrand48(subi) & 0xffff;
590 #ifdef HAVE_DVBPSI_SDT
591 var_Get( p_mux, SOUT_CFG_PREFIX "netid", &val );
592 if ( val.i_int )
593 p_sys->i_netid = val.i_int;
594 #endif
595
596 p_sys->i_pmt_version_number = nrand48(subi) & 0x1f;
597 for( i = 0; i < p_sys->i_num_pmt; i++ )
598 {
599 p_sys->pmt[i].i_continuity_counter = 0;
600 p_sys->pmt[i].b_discontinuity = false;
601 }
602
603 p_sys->sdt.i_pid = 0x11;
604 p_sys->sdt.i_continuity_counter = 0;
605 p_sys->sdt.b_discontinuity = false;
606
607 #ifdef HAVE_DVBPSI_SDT
608 var_Get( p_mux, SOUT_CFG_PREFIX "sdtdesc", &val );
609 p_sys->b_sdt = val.psz_string && *val.psz_string ? true : false;
610
611 /* Syntax is provider_sdt1,service_name_sdt1,provider_sdt2,service_name_sdt2... */
612 if( p_sys->b_sdt )
613 {
614
615 char *psz = val.psz_string;
616 char *psz_sdttoken = psz;
617
618 i = 0;
619 while ( psz_sdttoken != NULL )
620 {
621 char *psz_end = strchr( psz_sdttoken, ',' );
622 if( psz_end != NULL )
623 {
624 *psz_end++ = '\0';
625 }
626 if ( !(i % 2) )
627 {
628 p_sys->sdt_descriptors[i/2].psz_provider
629 = strdup(psz_sdttoken);
630 }
631 else
632 {
633 p_sys->sdt_descriptors[i/2].psz_service_name
634 = strdup(psz_sdttoken);
635 }
636
637 i++;
638 psz_sdttoken = psz_end;
639 }
640 }
641 free( val.psz_string );
642 #else
643 p_sys->b_sdt = false;
644 #endif
645
646 p_sys->b_data_alignment = var_GetBool( p_mux, SOUT_CFG_PREFIX "alignment" );
647
648 var_Get( p_mux, SOUT_CFG_PREFIX "program-pmt", &val );
649 if( val.psz_string && *val.psz_string )
650 {
651 char *psz_next;
652 char *psz = val.psz_string;
653 uint16_t i_pid;
654
655 psz_next = psz;
656 i = 0;
657 while ( psz != NULL )
658 {
659 i_pid = strtoul( psz, &psz_next, 0 );
660 if( psz_next[0] != '\0' )
661 psz = &psz_next[1];
662 else
663 psz = NULL;
664
665 if( i_pid == 0 )
666 {
667 if( i > MAX_PMT )
668 msg_Err( p_mux, "Number of PMTs > maximum (%d)",
669 MAX_PMT );
670 }
671 else
672 {
673 p_sys->i_pmt_program_number[i] = i_pid;
674 i++;
675 }
676 }
677 }
678 else
679 {
680 /* Option not specified, use 1, 2, 3... */
681 for( i = 0; i < p_sys->i_num_pmt; i++ )
682 p_sys->i_pmt_program_number[i] = i + 1;
683 }
684 free( val.psz_string );
685
686 var_Get( p_mux, SOUT_CFG_PREFIX "pid-pmt", &val );
687 if( val.i_int )
688 {
689 for( i = 0; i < p_sys->i_num_pmt; i++ )
690 p_sys->pmt[i].i_pid = val.i_int + i; /* Does this make any sense? */
691 }
692 else
693 {
694 for( i = 0; i < p_sys->i_num_pmt; i++ )
695 p_sys->pmt[i].i_pid = 0x42 + i;
696 }
697
698 p_sys->i_pid_free = p_sys->pmt[p_sys->i_num_pmt - 1].i_pid + 1;
699
700 p_sys->i_pid_video = var_GetInteger( p_mux, SOUT_CFG_PREFIX "pid-video" );
701 if ( p_sys->i_pid_video > p_sys->i_pid_free )
702 {
703 p_sys->i_pid_free = p_sys->i_pid_video + 1;
704 }
705
706 p_sys->i_pid_audio = var_GetInteger( p_mux, SOUT_CFG_PREFIX "pid-audio" );
707 if ( p_sys->i_pid_audio > p_sys->i_pid_free )
708 {
709 p_sys->i_pid_free = p_sys->i_pid_audio + 1;
710 }
711
712 p_sys->i_pid_spu = var_GetInteger( p_mux, SOUT_CFG_PREFIX "pid-spu" );
713 if ( p_sys->i_pid_spu > p_sys->i_pid_free )
714 {
715 p_sys->i_pid_free = p_sys->i_pid_spu + 1;
716 }
717
718 p_sys->i_pcr_pid = 0x1fff;
719 p_sys->p_pcr_input = NULL;
720
721 p_sys->i_mpeg4_streams = 0;
722
723 p_sys->i_null_continuity_counter = 0;
724
725 /* Allow to create constrained stream */
726 p_sys->i_bitrate_min = var_GetInteger( p_mux, SOUT_CFG_PREFIX "bmin" );
727
728 p_sys->i_bitrate_max = var_GetInteger( p_mux, SOUT_CFG_PREFIX "bmax" );
729
730 if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
731 p_sys->i_bitrate_min > p_sys->i_bitrate_max )
732 {
733 msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
734 "disabling bitrate control" );
735 p_sys->i_bitrate_min = 0;
736 p_sys->i_bitrate_max = 0;
737 }
738 if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
739 {
740 msg_Err( p_mux, "bmin and bmax no more supported "
741 "(if you need them report it)" );
742 }
743
744 var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
745 p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
746 if( p_sys->i_shaping_delay <= 0 )
747 {
748 msg_Err( p_mux,
749 "invalid shaping (%"PRId64"ms) resetting to 200ms",
750 p_sys->i_shaping_delay / 1000 );
751 p_sys->i_shaping_delay = 200000;
752 }
753
754 var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
755 p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
756 if( p_sys->i_pcr_delay <= 0 ||
757 p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
758 {
759 msg_Err( p_mux,
760 "invalid pcr delay (%"PRId64"ms) resetting to 70ms",
761 p_sys->i_pcr_delay / 1000 );
762 p_sys->i_pcr_delay = 70000;
763 }
764
765 var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
766 p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
767
768 msg_Dbg( p_mux, "shaping=%"PRId64" pcr=%"PRId64" dts_delay=%"PRId64,
769 p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
770
771 p_sys->b_use_key_frames = var_GetBool( p_mux, SOUT_CFG_PREFIX "use-key-frames" );
772
773 /* for TS generation */
774 p_sys->i_pcr = 0;
775
776 p_sys->csa = NULL;
777 var_Create( p_mux, SOUT_CFG_PREFIX "csa-ck", VLC_VAR_STRING | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND );
778 var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
779 if( val.psz_string && *val.psz_string )
780 {
781 int i_res;
782 vlc_value_t csa2;
783
784 p_sys->csa = csa_New();
785
786 var_Create( p_mux, SOUT_CFG_PREFIX "csa2-ck", VLC_VAR_STRING | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND );
787 var_Get( p_mux, SOUT_CFG_PREFIX "csa2-ck", &csa2 );
788 i_res = csa_SetCW( (vlc_object_t*)p_mux, p_sys->csa, val.psz_string, true );
789 if( i_res == VLC_SUCCESS && csa2.psz_string && *csa2.psz_string )
790 {
791 if( csa_SetCW( (vlc_object_t*)p_mux, p_sys->csa, csa2.psz_string, false ) != VLC_SUCCESS )
792 {
793 csa_SetCW( (vlc_object_t*)p_mux, p_sys->csa, val.psz_string, false );
794 }
795 }
796 else if( i_res == VLC_SUCCESS )
797 {
798 csa_SetCW( (vlc_object_t*)p_mux, p_sys->csa, val.psz_string, false );
799 }
800 else
801 {
802 csa_Delete( p_sys->csa );
803 p_sys->csa = NULL;
804 }
805
806 if( p_sys->csa )
807 {
808 vlc_value_t use_val, pkt_val;
809
810 var_Create( p_mux, SOUT_CFG_PREFIX "csa-use", VLC_VAR_STRING | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND );
811 var_Get( p_mux, SOUT_CFG_PREFIX "csa-use", &use_val );
812 var_AddCallback( p_mux, SOUT_CFG_PREFIX "csa-use", ActiveKeyCallback, NULL );
813 var_AddCallback( p_mux, SOUT_CFG_PREFIX "csa-ck", ChangeKeyCallback, (void *)1 );
814 var_AddCallback( p_mux, SOUT_CFG_PREFIX "csa2-ck", ChangeKeyCallback, NULL );
815
816 if ( var_Set( p_mux, SOUT_CFG_PREFIX "csa-use", use_val ) != VLC_SUCCESS )
817 {
818 var_SetString( p_mux, SOUT_CFG_PREFIX "csa-use", "odd" );
819 }
820 free( use_val.psz_string );
821
822 var_Get( p_mux, SOUT_CFG_PREFIX "csa-pkt", &pkt_val );
823 if( pkt_val.i_int < 12 || pkt_val.i_int > 188 )
824 {
825 msg_Err( p_mux, "wrong packet size %"PRId64" specified.",
826 pkt_val.i_int );
827 msg_Warn( p_mux, "using default packet size of 188 bytes" );
828 p_sys->i_csa_pkt_size = 188;
829 }
830 else p_sys->i_csa_pkt_size = pkt_val.i_int;
831 msg_Dbg( p_mux, "encrypting %d bytes of packet", p_sys->i_csa_pkt_size );
832 }
833 free( csa2.psz_string );
834 }
835 free( val.psz_string );
836
837 p_sys->b_crypt_audio = var_GetBool( p_mux, SOUT_CFG_PREFIX "crypt-audio" );
838
839 p_sys->b_crypt_video = var_GetBool( p_mux, SOUT_CFG_PREFIX "crypt-video" );
840
841 return VLC_SUCCESS;
842 }
843
844 /*****************************************************************************
845 * Close:
846 *****************************************************************************/
847 static void Close( vlc_object_t * p_this )
848 {
849 sout_mux_t *p_mux = (sout_mux_t*)p_this;
850 sout_mux_sys_t *p_sys = p_mux->p_sys;
851 int i;
852
853 if( p_sys->csa )
854 {
855 var_DelCallback( p_mux, SOUT_CFG_PREFIX "csa-ck", ChangeKeyCallback, NULL );
856 var_DelCallback( p_mux, SOUT_CFG_PREFIX "csa2-ck", ChangeKeyCallback, NULL );
857 var_DelCallback( p_mux, SOUT_CFG_PREFIX "csa-use", ActiveKeyCallback, NULL );
858 csa_Delete( p_sys->csa );
859 }
860
861 for( i = 0; i < MAX_PMT; i++ )
862 {
863 free( p_sys->sdt_descriptors[i].psz_service_name );
864 free( p_sys->sdt_descriptors[i].psz_provider );
865 }
866
867 vlc_mutex_destroy( &p_sys->csa_lock );
868 free( p_sys->dvbpmt );
869 free( p_sys );
870 }
871
872 /*****************************************************************************
873 * ChangeKeyCallback: called when changing the odd encryption key on the fly.
874 *****************************************************************************/
875 static int ChangeKeyCallback( vlc_object_t *p_this, char const *psz_cmd,
876 vlc_value_t oldval, vlc_value_t newval,
877 void *p_data )
878 {
879 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
880 sout_mux_t *p_mux = (sout_mux_t*)p_this;
881 sout_mux_sys_t *p_sys = p_mux->p_sys;
882 int ret;
883
884 vlc_mutex_lock( &p_sys->csa_lock );
885 ret = csa_SetCW( p_this, p_sys->csa, newval.psz_string,
886 !!(intptr_t)p_data );
887 vlc_mutex_unlock( &p_sys->csa_lock );
888
889 return ret;
890 }
891
892 /*****************************************************************************
893 * ActiveKeyCallback: called when changing the active (in use) encryption key on the fly.
894 *****************************************************************************/
895 static int ActiveKeyCallback( vlc_object_t *p_this, char const *psz_cmd,
896 vlc_value_t oldval, vlc_value_t newval,
897 void *p_data )
898 {
899 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
900 sout_mux_t *p_mux = (sout_mux_t*)p_this;
901 sout_mux_sys_t *p_sys = p_mux->p_sys;
902 int i_res = VLC_EBADVAR;
903
904 vlc_mutex_lock( &p_sys->csa_lock );
905 if( !strcmp(newval.psz_string, "odd" ) || !strcmp(newval.psz_string, "first" ) || !strcmp(newval.psz_string, "1" ) )
906 {
907 i_res = csa_UseKey( (vlc_object_t*)p_mux, p_sys->csa, 1 );
908 }
909 else if( !strcmp(newval.psz_string, "even" ) || !strcmp(newval.psz_string, "second" ) || !strcmp(newval.psz_string, "2" ) )
910 {
911 i_res = csa_UseKey( (vlc_object_t*)p_mux, p_sys->csa, 0 );
912 }
913 vlc_mutex_unlock( &p_sys->csa_lock );
914
915 return i_res;
916 }
917
918 /*****************************************************************************
919 * Control:
920 *****************************************************************************/
921 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
922 {
923 VLC_UNUSED(p_mux);
924 bool *pb_bool;
925 char **ppsz;
926
927 switch( i_query )
928 {
929 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
930 pb_bool = (bool*)va_arg( args, bool * );
931 *pb_bool = true;
932 return VLC_SUCCESS;
933
934 case MUX_GET_ADD_STREAM_WAIT:
935 pb_bool = (bool*)va_arg( args, bool * );
936 *pb_bool = false;
937 return VLC_SUCCESS;
938
939 case MUX_GET_MIME:
940 ppsz = (char**)va_arg( args, char ** );
941 *ppsz = strdup( "video/mpeg" ); /* FIXME not sure */
942 return VLC_SUCCESS;
943
944 default:
945 return VLC_EGENERIC;
946 }
947 }
948
949 /*****************************************************************************
950 * AddStream: called for each stream addition
951 *****************************************************************************/
952 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
953 {
954 sout_mux_sys_t *p_sys = p_mux->p_sys;
955 ts_stream_t *p_stream;
956 int i;
957
958 p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
959 if( !p_input->p_sys )
960 return VLC_ENOMEM;
961
962 /* Init this new stream */
963 if ( p_sys->b_es_id_pid )
964 p_stream->i_pid = p_input->p_fmt->i_id & 0x1fff;
965 else
966 p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
967 p_stream->i_codec = p_input->p_fmt->i_codec;
968 p_stream->i_continuity_counter = 0;
969 p_stream->b_discontinuity = false;
970 p_stream->i_decoder_specific_info = 0;
971 p_stream->p_decoder_specific_info = NULL;
972
973 msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
974 (char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
975
976 /* All others fields depand on codec */
977 switch( p_input->p_fmt->i_cat )
978 {
979 case VIDEO_ES:
980 switch( p_input->p_fmt->i_codec )
981 {
982 case VLC_CODEC_MPGV:
983 /* TODO: do we need to check MPEG-I/II ? */
984 p_stream->i_stream_type = 0x02;
985 p_stream->i_stream_id = 0xe0;
986 break;
987 case VLC_CODEC_MP4V:
988 p_stream->i_stream_type = 0x10;
989 p_stream->i_stream_id = 0xe0;
990 p_stream->i_es_id = p_stream->i_pid;
991 break;
992 case VLC_CODEC_H264:
993 p_stream->i_stream_type = 0x1b;
994 p_stream->i_stream_id = 0xe0;
995 break;
996 /* XXX dirty dirty but somebody want that:
997 * using crapy MS-codec XXX */
998 /* I didn't want to do that :P */
999 case VLC_CODEC_H263I:
1000 case VLC_CODEC_H263:
1001 case VLC_CODEC_WMV3:
1002 case VLC_CODEC_WMV2:
1003 case VLC_CODEC_WMV1:
1004 case VLC_CODEC_DIV3:
1005 case VLC_CODEC_DIV2:
1006 case VLC_CODEC_DIV1:
1007 case VLC_CODEC_MJPG:
1008 p_stream->i_stream_type = 0xa0; /* private */
1009 p_stream->i_stream_id = 0xa0; /* beurk */
1010 p_stream->i_bih_codec = p_input->p_fmt->i_codec;
1011 p_stream->i_bih_width = p_input->p_fmt->video.i_width;
1012 p_stream->i_bih_height = p_input->p_fmt->video.i_height;
1013 break;
1014 case VLC_CODEC_DIRAC:
1015 /* stream_id makes use of stream_id_extension */
1016 p_stream->i_stream_id = (PES_EXTENDED_STREAM_ID << 8) | 0x60;
1017 p_stream->i_stream_type = 0xd1;
1018 break;
1019 default:
1020 free( p_stream );
1021 return VLC_EGENERIC;
1022 }
1023 p_sys->i_video_bound++;
1024 break;
1025
1026 case AUDIO_ES:
1027 switch( p_input->p_fmt->i_codec )
1028 {
1029 case VLC_CODEC_MPGA:
1030 p_stream->i_stream_type =
1031 p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
1032 p_stream->i_stream_id = 0xc0;
1033 break;
1034 case VLC_CODEC_A52:
1035 p_stream->i_stream_type = 0x81;
1036 p_stream->i_stream_id = 0xbd;
1037 break;
1038 case VLC_CODEC_EAC3:
1039 p_stream->i_stream_type = 0x06;
1040 p_stream->i_stream_id = 0xbd;
1041 break;
1042 case VLC_CODEC_DVD_LPCM:
1043 p_stream->i_stream_type = 0x83;
1044 p_stream->i_stream_id = 0xbd;
1045 break;
1046 case VLC_CODEC_DTS:
1047 p_stream->i_stream_type = 0x06;
1048 p_stream->i_stream_id = 0xbd;
1049 break;
1050 case VLC_CODEC_MP4A:
1051 /* XXX: make that configurable in some way when LOAS
1052 * is implemented for AAC in TS */
1053 //p_stream->i_stream_type = 0x11; /* LOAS/LATM */
1054 p_stream->i_stream_type = 0x0f; /* ADTS */
1055 p_stream->i_stream_id = 0xc0;
1056 p_sys->i_mpeg4_streams++;
1057 p_stream->i_es_id = p_stream->i_pid;
1058 break;
1059 default:
1060 free( p_stream );
1061 return VLC_EGENERIC;
1062 }
1063 p_sys->i_audio_bound++;
1064 break;
1065
1066 case SPU_ES:
1067 switch( p_input->p_fmt->i_codec )
1068 {
1069 case VLC_CODEC_SPU:
1070 p_stream->i_stream_type = 0x82;
1071 p_stream->i_stream_id = 0xbd;
1072 break;
1073 case VLC_CODEC_SUBT:
1074 p_stream->i_stream_type = 0x12;
1075 p_stream->i_stream_id = 0xfa;
1076 p_sys->i_mpeg4_streams++;
1077 p_stream->i_es_id = p_stream->i_pid;
1078 break;
1079 case VLC_CODEC_DVBS:
1080 p_stream->i_stream_type = 0x06;
1081 p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
1082 p_stream->i_stream_id = 0xbd;
1083 break;
1084 case VLC_CODEC_TELETEXT:
1085 p_stream->i_stream_type = 0x06;
1086 p_stream->i_stream_id = 0xbd; /* FIXME */
1087 break;
1088 default:
1089 free( p_stream );
1090 return VLC_EGENERIC;
1091 }
1092 break;
1093
1094 default:
1095 free( p_stream );
1096 return VLC_EGENERIC;
1097 }
1098
1099 p_stream->i_langs = 1+p_input->p_fmt->i_extra_languages;
1100 p_stream->lang = malloc(p_stream->i_langs*3);
1101 if( !p_stream->lang )
1102 {
1103 p_stream->i_langs = 0;
1104 free( p_stream );
1105 return VLC_ENOMEM;
1106 }
1107 i = 1;
1108 p_stream->lang[0] =
1109 p_stream->lang[1] =
1110 p_stream->lang[2] = '\0';
1111 if( p_input->p_fmt->psz_language )
1112 {
1113 char *psz = p_input->p_fmt->psz_language;
1114 const iso639_lang_t *pl = NULL;
1115
1116 if( strlen( psz ) == 2 )
1117 {
1118 pl = GetLang_1( psz );
1119 }
1120 else if( strlen( psz ) == 3 )
1121 {
1122 pl = GetLang_2B( psz );
1123 if( !strcmp( pl->psz_iso639_1, "??" ) )
1124 {
1125 pl = GetLang_2T( psz );
1126 }
1127 }
1128 if( pl && strcmp( pl->psz_iso639_1, "??" ) )
1129 {
1130 p_stream->lang[0] = pl->psz_iso639_2T[0];
1131 p_stream->lang[1] = pl->psz_iso639_2T[1];
1132 p_stream->lang[2] = pl->psz_iso639_2T[2];
1133
1134 msg_Dbg( p_mux, " - lang=%c%c%c",
1135 p_stream->lang[0], p_stream->lang[1],
1136 p_stream->lang[2] );
1137 }
1138 }
1139 while( i < p_stream->i_langs ) {
1140 if( p_input->p_fmt->p_extra_languages[i-1].psz_language )
1141 {
1142 char *psz = p_input->p_fmt->p_extra_languages[i-1].psz_language;
1143 const iso639_lang_t *pl = NULL;
1144
1145 if( strlen( psz ) == 2 )
1146 {
1147 pl = GetLang_1( psz );
1148 }
1149 else if( strlen( psz ) == 3 )
1150 {
1151 pl = GetLang_2B( psz );
1152 if( !strcmp( pl->psz_iso639_1, "??" ) )
1153 {
1154 pl = GetLang_2T( psz );
1155 }
1156 }
1157 if( pl && strcmp( pl->psz_iso639_1, "??" ) )
1158 {
1159 p_stream->lang[i*3+0] = pl->psz_iso639_2T[0];
1160 p_stream->lang[i*3+1] = pl->psz_iso639_2T[1];
1161 p_stream->lang[i*3+2] = pl->psz_iso639_2T[2];
1162
1163 msg_Dbg( p_mux, " - lang=%c%c%c",
1164 p_stream->lang[i*3+0], p_stream->lang[i*3+1],
1165 p_stream->lang[i*3+2] );
1166 }
1167 }
1168 i++;
1169 }
1170
1171 /* Create decoder specific info for subt */
1172 if( p_stream->i_codec == VLC_CODEC_SUBT )
1173 {
1174 uint8_t *p;
1175
1176 p_stream->i_decoder_specific_info = 55;
1177 p_stream->p_decoder_specific_info = p =
1178 malloc( p_stream->i_decoder_specific_info );
1179 if( p )
1180 {
1181 p[0] = 0x10; /* textFormat, 0x10 for 3GPP TS 26.245 */
1182 p[1] = 0x00; /* flags: 1b: associated video info flag
1183 3b: reserved
1184 1b: duration flag
1185 3b: reserved */
1186 p[2] = 52; /* remaining size */
1187
1188 p += 3;
1189
1190 p[0] = p[1] = p[2] = p[3] = 0; p+=4; /* display flags */
1191 *p++ = 0; /* horizontal justification (-1: left, 0 center, 1 right) */
1192 *p++ = 1; /* vertical justification (-1: top, 0 center, 1 bottom) */
1193
1194 p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
1195 *p++ = 0xff; /* background a */
1196
1197 p[0] = p[1] = 0; p += 2; /* text box top */
1198 p[0] = p[1] = 0; p += 2; /* text box left */
1199 p[0] = p[1] = 0; p += 2; /* text box bottom */
1200 p[0] = p[1] = 0; p += 2; /* text box right */
1201
1202 p[0] = p[1] = 0; p += 2; /* start char */
1203 p[0] = p[1] = 0; p += 2; /* end char */
1204 p[0] = p[1] = 0; p += 2; /* default font id */
1205
1206 *p++ = 0; /* font style flags */
1207 *p++ = 12; /* font size */
1208
1209 p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
1210 *p++ = 0x00; /* foreground a */
1211
1212 p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
1213 memcpy( p, "ftab", 4 ); p += 4;
1214 *p++ = 0; *p++ = 1; /* entry count */
1215 p[0] = p[1] = 0; p += 2; /* font id */
1216 *p++ = 9; /* font name length */
1217 memcpy( p, "Helvetica", 9 ); /* font name */
1218 }
1219 else p_stream->i_decoder_specific_info = 0;
1220 }
1221 else
1222 {
1223 /* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
1224 p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
1225 if( p_stream->i_decoder_specific_info > 0 )
1226 {
1227 p_stream->p_decoder_specific_info =
1228 malloc( p_stream->i_decoder_specific_info );
1229 if( p_stream->p_decoder_specific_info )
1230 {
1231 memcpy( p_stream->p_decoder_specific_info,
1232 p_input->p_fmt->p_extra,
1233 p_input->p_fmt->i_extra );
1234 }
1235 else p_stream->i_decoder_specific_info = 0;
1236 }
1237 }
1238
1239 /* Init pes chain */
1240 BufferChainInit( &p_stream->chain_pes );
1241 p_stream->i_pes_dts = 0;
1242 p_stream->i_pes_length = 0;
1243 p_stream->i_pes_used = 0;
1244 p_stream->b_key_frame = 0;
1245
1246 /* We only change PMT version (PAT isn't changed) */
1247 p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
1248
1249 /* Update pcr_pid */
1250 if( p_input->p_fmt->i_cat != SPU_ES &&
1251 ( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
1252 {
1253 if( p_sys->p_pcr_input )
1254 {
1255 /* There was already a PCR stream, so clean context */
1256 /* FIXME */
1257 }
1258 p_sys->i_pcr_pid = p_stream->i_pid;
1259 p_sys->p_pcr_input = p_input;
1260
1261 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
1262 }
1263
1264 return VLC_SUCCESS;
1265 }
1266
1267 /*****************************************************************************
1268 * DelStream: called before a stream deletion
1269 *****************************************************************************/
1270 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
1271 {
1272 sout_mux_sys_t *p_sys = p_mux->p_sys;
1273 ts_stream_t *p_stream;
1274 vlc_value_t val;
1275
1276 p_stream = (ts_stream_t*)p_input->p_sys;
1277 msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
1278
1279 if( p_sys->i_pcr_pid == p_stream->i_pid )
1280 {
1281 int i;
1282
1283 /* Find a new pcr stream (Prefer Video Stream) */
1284 p_sys->i_pcr_pid = 0x1fff;
1285 p_sys->p_pcr_input = NULL;
1286 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1287 {
1288 if( p_mux->pp_inputs[i] == p_input )
1289 {
1290 continue;
1291 }
1292
1293 if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
1294 {
1295 p_sys->i_pcr_pid =
1296 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
1297 p_sys->p_pcr_input= p_mux->pp_inputs[i];
1298 break;
1299 }
1300 else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
1301 p_sys->i_pcr_pid == 0x1fff )
1302 {
1303 p_sys->i_pcr_pid =
1304 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
1305 p_sys->p_pcr_input= p_mux->pp_inputs[i];
1306 }
1307 }
1308 if( p_sys->p_pcr_input )
1309 {
1310 /* Empty TS buffer */
1311 /* FIXME */
1312 }
1313 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
1314 }
1315
1316 /* Empty all data in chain_pes */
1317 BufferChainClean( &p_stream->chain_pes );
1318
1319 free(p_stream->lang);
1320 free( p_stream->p_decoder_specific_info );
1321 if( p_stream->i_stream_id == 0xfa ||
1322 p_stream->i_stream_id == 0xfb ||
1323 p_stream->i_stream_id == 0xfe )
1324 {
1325 p_sys->i_mpeg4_streams--;
1326 }
1327
1328 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
1329 if( val.i_int > 0 )
1330 {
1331 int i_pid_video = val.i_int;
1332 if ( i_pid_video == p_stream->i_pid )
1333 {
1334 p_sys->i_pid_video = i_pid_video;
1335 msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
1336 }
1337 }
1338 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
1339 if( val.i_int > 0 )
1340 {
1341 int i_pid_audio = val.i_int;
1342 if ( i_pid_audio == p_stream->i_pid )
1343 {
1344 p_sys->i_pid_audio = i_pid_audio;
1345 msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
1346 }
1347 }
1348 var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
1349 if( val.i_int > 0 )
1350 {
1351 int i_pid_spu = val.i_int;
1352 if ( i_pid_spu == p_stream->i_pid )
1353 {
1354 p_sys->i_pid_spu = i_pid_spu;
1355 msg_Dbg( p_mux, "freeing spu PID %d", i_pid_spu );
1356 }
1357 }
1358 free( p_stream );
1359
1360 /* We only change PMT version (PAT isn't changed) */
1361 p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
1362
1363 return VLC_SUCCESS;
1364 }
1365
1366 /*****************************************************************************
1367 * Mux: Call each time there is new data for at least one stream
1368 *****************************************************************************
1369 *
1370 *****************************************************************************/
1371 static int Mux( sout_mux_t *p_mux )
1372 {
1373 sout_mux_sys_t *p_sys = p_mux->p_sys;
1374 ts_stream_t *p_pcr_stream;
1375
1376 if( p_sys->i_pcr_pid == 0x1fff )
1377 {
1378 int i;
1379 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1380 {
1381 block_FifoEmpty( p_mux->pp_inputs[i]->p_fifo );
1382 }
1383 msg_Dbg( p_mux, "waiting for PCR streams" );
1384 return VLC_SUCCESS;
1385 }
1386 p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
1387
1388 for( ;; )
1389 {
1390 sout_buffer_chain_t chain_ts;
1391 int i_packet_count;
1392 int i_packet_pos;
1393 mtime_t i_pcr_dts;
1394 mtime_t i_pcr_length;
1395 mtime_t i_shaping_delay;
1396 int i;
1397
1398 if( p_pcr_stream->b_key_frame )
1399 {
1400 i_shaping_delay = p_pcr_stream->i_pes_length;
1401 }
1402 else
1403 {
1404 i_shaping_delay = p_sys->i_shaping_delay;
1405 }
1406
1407 /* 1: get enough PES packet for all input */
1408 for( ;; )
1409 {
1410 bool b_ok = true;
1411 block_t *p_data;
1412
1413 /* Accumulate enough data in the pcr stream (>i_shaping_delay) */
1414 /* Accumulate enough data in all other stream ( >= length of pcr)*/
1415 for( i = -1; i < p_mux->i_nb_inputs; i++ )
1416 {
1417 sout_input_t *p_input;
1418 ts_stream_t *p_stream;
1419 int64_t i_spu_delay = 0;
1420
1421 if( i == -1 )
1422 p_input = p_sys->p_pcr_input;
1423 else if( p_mux->pp_inputs[i]->p_sys == p_pcr_stream )
1424 continue;
1425 else
1426 p_input = p_mux->pp_inputs[i];
1427 p_stream = (ts_stream_t*)p_input->p_sys;
1428
1429 if( ( ( p_stream == p_pcr_stream ) &&
1430 ( p_stream->i_pes_length < i_shaping_delay ) ) ||
1431 ( p_stream->i_pes_dts + p_stream->i_pes_length <
1432 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length ) )
1433 {
1434 /* Need more data */
1435 if( block_FifoCount( p_input->p_fifo ) <= 1 )
1436 {
1437 if( ( p_input->p_fmt->i_cat == AUDIO_ES ) ||
1438 ( p_input->p_fmt->i_cat == VIDEO_ES ) )
1439 {
1440 /* We need more data */
1441 return VLC_SUCCESS;
1442 }
1443 else if( block_FifoCount( p_input->p_fifo ) <= 0 )
1444 {
1445 /* spu, only one packet is needed */
1446 continue;
1447 }
1448 else if( p_input->p_fmt->i_cat == SPU_ES )
1449 {
1450 /* Don't mux the SPU yet if it is too early */
1451 block_t *p_spu = block_FifoShow( p_input->p_fifo );
1452
1453 i_spu_delay =
1454 p_spu->i_dts - p_pcr_stream->i_pes_dts;
1455
1456 if( ( i_spu_delay > i_shaping_delay ) &&
1457 ( i_spu_delay < INT64_C(100000000) ) )
1458 continue;
1459
1460 if ( ( i_spu_delay >= INT64_C(100000000) ) ||
1461 ( i_spu_delay < INT64_C(10000) ) )
1462 {
1463 BufferChainClean( &p_stream->chain_pes );
1464 p_stream->i_pes_dts = 0;
1465 p_stream->i_pes_used = 0;
1466 p_stream->i_pes_length = 0;
1467 continue;
1468 }
1469 }
1470 }
1471 b_ok = false;
1472
1473 if( p_stream == p_pcr_stream || p_sys->b_data_alignment
1474 || p_input->p_fmt->i_codec !=
1475 VLC_CODEC_MPGA )
1476 {
1477 p_data = block_FifoGet( p_input->p_fifo );
1478
1479 if( p_input->p_fmt->i_codec ==
1480 VLC_CODEC_MP4A )
1481 p_data = Add_ADTS( p_data, p_input->p_fmt );
1482 }
1483 else
1484 p_data = FixPES( p_mux, p_input->p_fifo );
1485
1486 if( block_FifoCount( p_input->p_fifo ) > 0 &&
1487 p_input->p_fmt->i_cat != SPU_ES )
1488 {
1489 block_t *p_next = block_FifoShow( p_input->p_fifo );
1490 p_data->i_length = p_next->i_dts - p_data->i_dts;
1491 }
1492 else if( p_input->p_fmt->i_codec !=
1493 VLC_CODEC_SUBT )
1494 p_data->i_length = 1000;
1495
1496 if( ( p_pcr_stream->i_pes_dts > 0 &&
1497 p_data->i_dts - 10000000 > p_pcr_stream->i_pes_dts +
1498 p_pcr_stream->i_pes_length ) ||
1499 p_data->i_dts < p_stream->i_pes_dts ||
1500 ( p_stream->i_pes_dts > 0 &&
1501 p_input->p_fmt->i_cat != SPU_ES &&
1502 p_data->i_dts - 10000000 > p_stream->i_pes_dts +
1503 p_stream->i_pes_length ) )
1504 {
1505 msg_Warn( p_mux, "packet with too strange dts "
1506 "(dts=%"PRId64",old=%"PRId64",pcr=%"PRId64")",
1507 p_data->i_dts, p_stream->i_pes_dts,
1508 p_pcr_stream->i_pes_dts );
1509 block_Release( p_data );
1510
1511 BufferChainClean( &p_stream->chain_pes );
1512 p_stream->i_pes_dts = 0;
1513 p_stream->i_pes_used = 0;
1514 p_stream->i_pes_length = 0;
1515
1516 if( p_input->p_fmt->i_cat != SPU_ES )
1517 {
1518 BufferChainClean( &p_pcr_stream->chain_pes );
1519 p_pcr_stream->i_pes_dts = 0;
1520 p_pcr_stream->i_pes_used = 0;
1521 p_pcr_stream->i_pes_length = 0;
1522 }
1523 }
1524 else
1525 {
1526 int i_header_size = 0;
1527 int i_max_pes_size = 0;
1528 int b_data_alignment = 0;
1529 if( p_input->p_fmt->i_cat == SPU_ES )
1530 {
1531 if( p_input->p_fmt->i_codec ==
1532 VLC_CODEC_SUBT )
1533 {
1534 /* Prepend header */
1535 p_data = block_Realloc( p_data, 2,
1536 p_data->i_buffer );
1537 p_data->p_buffer[0] =
1538 ( (p_data->i_buffer - 2) >> 8) & 0xff;
1539 p_data->p_buffer[1] =
1540 ( (p_data->i_buffer - 2) ) & 0xff;
1541
1542 /* remove trailling \0 if any */
1543 if( p_data->i_buffer > 2 &&
1544 p_data->p_buffer[p_data->i_buffer -1] ==
1545 '\0' )
1546 p_data->i_buffer--;
1547
1548 /* Append a empty sub (sub text only) */
1549 if( p_data->i_length > 0 &&
1550 !( p_data->i_buffer == 1 &&
1551 *p_data->p_buffer == ' ' ) )
1552 {
1553 block_t *p_spu = block_New( p_mux, 3 );
1554
1555 p_spu->i_dts = p_spu->i_pts =
1556 p_data->i_dts + p_data->i_length;
1557 p_spu->i_length = 1000;
1558
1559 p_spu->p_buffer[0] = 0;
1560 p_spu->p_buffer[1] = 1;
1561 p_spu->p_buffer[2] = ' ';
1562
1563 EStoPES( p_mux->p_sout, &p_spu, p_spu,
1564 p_input->p_fmt,
1565 p_stream->i_stream_id, 1,
1566 0, 0, 0 );
1567 p_data->p_next = p_spu;
1568 }
1569 }
1570 else if( p_input->p_fmt->i_codec ==
1571 VLC_CODEC_TELETEXT )
1572 {
1573 /* EN 300 472 */
1574 i_header_size = 0x24;
1575 b_data_alignment = 1;
1576 }
1577 else if( p_input->p_fmt->i_codec ==
1578 VLC_CODEC_DVBS )
1579 {
1580 /* EN 300 743 */
1581 b_data_alignment = 1;
1582 }
1583 }
1584 else if( p_data->i_length < 0 ||
1585 p_data->i_length > 2000000 )
1586 {
1587 /* FIXME choose a better value, but anyway we
1588 * should never have to do that */
1589 p_data->i_length = 1000;
1590 }
1591
1592 p_stream->i_pes_length += p_data->i_length;
1593 if( p_stream->i_pes_dts == 0 )
1594 {
1595 p_stream->i_pes_dts = p_data->i_dts;
1596 }
1597
1598 /* Convert to pes */
1599 if( p_stream->i_stream_id == 0xa0 &&
1600 p_data->i_pts <= 0 )
1601 {
1602 /* XXX yes I know, it's awful, but it's needed,
1603 * so don't remove it ... */
1604 p_data->i_pts = p_data->i_dts;
1605 }
1606
1607 if( p_input->p_fmt->i_codec ==
1608 VLC_CODEC_DIRAC )
1609 {
1610 b_data_alignment = 1;
1611 /* dirac pes packets should be unbounded in
1612 * length, specify a suitibly large max size */
1613 i_max_pes_size = INT_MAX;
1614 }
1615
1616 EStoPES ( p_mux->p_sout, &p_data, p_data,
1617 p_input->p_fmt, p_stream->i_stream_id,
1618 1, b_data_alignment, i_header_size,
1619 i_max_pes_size );
1620
1621 BufferChainAppend( &p_stream->chain_pes, p_data );
1622
1623 if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
1624 && (p_data->i_flags & BLOCK_FLAG_TYPE_I)
1625 && !(p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME)
1626 && (p_stream->i_pes_length > 400000) )
1627 {
1628 i_shaping_delay = p_stream->i_pes_length;
1629 p_stream->b_key_frame = 1;
1630 }
1631 }
1632 }
1633 }
1634
1635 if( b_ok )
1636 {
1637 break;
1638 }
1639 }
1640
1641 /* save */
1642 i_pcr_dts = p_pcr_stream->i_pes_dts;
1643 i_pcr_length = p_pcr_stream->i_pes_length;
1644 p_pcr_stream->b_key_frame = 0;
1645
1646 /* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
1647 /* 2: calculate non accurate total size of muxed ts */
1648 i_packet_count = 0;
1649 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1650 {
1651 ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1652 block_t *p_pes;
1653
1654 /* False for pcr stream but it will be enough to do PCR algo */
1655 for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
1656 p_pes = p_pes->p_next )
1657 {
1658 int i_size = p_pes->i_buffer;
1659 if( p_pes->i_dts + p_pes->i_length >
1660 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1661 {
1662 mtime_t i_frag = p_pcr_stream->i_pes_dts +
1663 p_pcr_stream->i_pes_length - p_pes->i_dts;
1664 if( i_frag < 0 )
1665 {
1666 /* Next stream */
1667 break;
1668 }
1669 i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
1670 }
1671 i_packet_count += ( i_size + 183 ) / 184;
1672 }
1673 }
1674 /* add overhead for PCR (not really exact) */
1675 i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
1676
1677 /* 3: mux PES into TS */
1678 BufferChainInit( &chain_ts );
1679 /* append PAT/PMT -> FIXME with big pcr delay it won't have enough pat/pmt */
1680 GetPAT( p_mux, &chain_ts );
1681 GetPMT( p_mux, &chain_ts );
1682 i_packet_pos = 0;
1683 i_packet_count += chain_ts.i_depth;
1684 /* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
1685
1686 for( ;; )
1687 {
1688 int i_stream;
1689 mtime_t i_dts;
1690 ts_stream_t *p_stream;
1691 sout_input_t *p_input;
1692 block_t *p_ts;
1693 bool b_pcr;
1694
1695 /* Select stream (lowest dts) */
1696 for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
1697 {
1698 p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1699
1700 if( p_stream->i_pes_dts == 0 )
1701 {
1702 continue;
1703 }
1704
1705 if( i_stream == -1 ||
1706 p_stream->i_pes_dts < i_dts )
1707 {
1708 i_stream = i;
1709 i_dts = p_stream->i_pes_dts;
1710 }
1711 }
1712 if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
1713 {
1714 break;
1715 }
1716 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1717 p_input = p_mux->pp_inputs[i_stream];
1718
1719 /* do we need to issue pcr */
1720 b_pcr = false;
1721 if( p_stream == p_pcr_stream &&
1722 i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
1723 p_sys->i_pcr + p_sys->i_pcr_delay )
1724 {
1725 b_pcr = true;
1726 p_sys->i_pcr = i_pcr_dts + i_packet_pos *
1727 i_pcr_length / i_packet_count;
1728 }
1729
1730 /* Build the TS packet */
1731 p_ts = TSNew( p_mux, p_stream, b_pcr );
1732 if( p_sys->csa != NULL &&
1733 (p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) &&
1734 (p_input->p_fmt->i_cat != VIDEO_ES || p_sys->b_crypt_video) )
1735 {
1736 p_ts->i_flags |= BLOCK_FLAG_SCRAMBLED;
1737 }
1738 i_packet_pos++;
1739
1740 /* */
1741 BufferChainAppend( &chain_ts, p_ts );
1742 }
1743
1744 /* 4: date and send */
1745 TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
1746 }
1747 }
1748
1749 #define STD_PES_PAYLOAD 170
1750 static block_t *FixPES( sout_mux_t *p_mux, block_fifo_t *p_fifo )
1751 {
1752 VLC_UNUSED(p_mux);
1753 block_t *p_data;
1754 size_t i_size;
1755
1756 p_data = block_FifoShow( p_fifo );
1757 i_size = p_data->i_buffer;
1758
1759 if( i_size == STD_PES_PAYLOAD )
1760 {
1761 return block_FifoGet( p_fifo );
1762 }
1763 else if( i_size > STD_PES_PAYLOAD )
1764 {
1765 block_t *p_new = block_New( p_mux, STD_PES_PAYLOAD );
1766 vlc_memcpy( p_new->p_buffer, p_data->p_buffer, STD_PES_PAYLOAD );
1767 p_new->i_pts = p_data->i_pts;
1768 p_new->i_dts = p_data->i_dts;
1769 p_new->i_length = p_data->i_length * STD_PES_PAYLOAD
1770 / p_data->i_buffer;
1771 p_data->i_buffer -= STD_PES_PAYLOAD;
1772 p_data->p_buffer += STD_PES_PAYLOAD;
1773 p_data->i_pts += p_new->i_length;
1774 p_data->i_dts += p_new->i_length;
1775 p_data->i_length -= p_new->i_length;
1776 p_data->i_flags |= BLOCK_FLAG_NO_KEYFRAME;
1777 return p_new;
1778 }
1779 else
1780 {
1781 block_t *p_next;
1782 int i_copy;
1783
1784 p_data = block_FifoGet( p_fifo );
1785 p_data = block_Realloc( p_data, 0, STD_PES_PAYLOAD );
1786 p_next = block_FifoShow( p_fifo );
1787 if ( p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME )
1788 {
1789 p_data->i_flags &= ~BLOCK_FLAG_NO_KEYFRAME;
1790 p_data->i_pts = p_next->i_pts;
1791 p_data->i_dts = p_next->i_dts;
1792 }
1793 i_copy = __MIN( STD_PES_PAYLOAD - i_size, p_next->i_buffer );
1794
1795 vlc_memcpy( &p_data->p_buffer[i_size], p_next->p_buffer, i_copy );
1796 p_next->i_pts += p_next->i_length * i_copy / p_next->i_buffer;
1797 p_next->i_dts += p_next->i_length * i_copy / p_next->i_buffer;
1798 p_next->i_length -= p_next->i_length * i_copy / p_next->i_buffer;
1799 p_next->i_buffer -= i_copy;
1800 p_next->p_buffer += i_copy;
1801 p_next->i_flags |= BLOCK_FLAG_NO_KEYFRAME;
1802
1803 if( !p_next->i_buffer )
1804 {
1805 p_next = block_FifoGet( p_fifo );
1806 block_Release( p_next );
1807 }
1808 return p_data;
1809 }
1810 }
1811
1812 static block_t *Add_ADTS( block_t *p_data, es_format_t *p_fmt )
1813 {
1814 uint8_t *p_extra = p_fmt->p_extra;
1815
1816 if( !p_data || p_fmt->i_extra < 2 || !p_extra )
1817 return p_data; /* no data to construct the headers */
1818
1819 int i_index = ( (p_extra[0] << 1) | (p_extra[1] >> 7) ) & 0x0f;
1820 int i_profile = (p_extra[0] >> 3) - 1; /* i_profile < 4 */
1821
1822 if( i_index == 0x0f && p_fmt->i_extra < 5 )
1823 return p_data; /* not enough data */
1824
1825 int i_channels = (p_extra[i_index == 0x0f ? 4 : 1] >> 3) & 0x0f;
1826
1827 #define ADTS_HEADER_SIZE 7 /* CRC needs 2 more bytes */
1828
1829
1830 /* keep a copy in case block_Realloc() fails */
1831 block_t *p_bak_block = block_Duplicate( p_data );
1832 if( !p_bak_block ) /* OOM, block_Realloc() is likely to lose our block */
1833 return p_data; /* the frame isn't correct but that's the best we have */
1834
1835 block_t *p_new_block = block_Realloc( p_data, ADTS_HEADER_SIZE,
1836 p_data->i_buffer );
1837 if( !p_new_block )
1838 return p_bak_block; /* OOM, send the (incorrect) original frame */
1839
1840 block_Release( p_bak_block ); /* we don't need the copy anymore */
1841
1842
1843 uint8_t *p_buffer = p_new_block->p_buffer;
1844
1845 /* fixed header */
1846 p_buffer[0] = 0xff;
1847 p_buffer[1] = 0xf1; /* 0xf0 | 0x00 | 0x00 | 0x01 */
1848 p_buffer[2] = (i_profile << 6) | ((i_index & 0x0f) << 2) | ((i_channels >> 2) & 0x01) ;
1849 p_buffer[3] = (i_channels << 6) | ((p_data->i_buffer >> 11) & 0x03);
1850
1851 /* variable header (starts at last 2 bits of 4th byte) */
1852
1853 int i_fullness = 0x7ff; /* 0x7ff means VBR */
1854 /* XXX: We should check if it's CBR or VBR, but no known implementation
1855 * do that, and it's a pain to calculate this field */
1856
1857 p_buffer[4] = p_data->i_buffer >> 3;
1858 p_buffer[5] = ((p_data->i_buffer & 0x07) << 5) | ((i_fullness >> 6) & 0x1f);
1859 p_buffer[6] = ((i_fullness & 0x3f) << 2) /* | 0xfc */;
1860
1861 return p_new_block;
1862 }
1863
1864 static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1865 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1866 {
1867 sout_mux_sys_t *p_sys = p_mux->p_sys;
1868 sout_buffer_chain_t new_chain;
1869 int i_packet_count = p_chain_ts->i_depth;
1870 int i;
1871
1872 BufferChainInit( &new_chain );
1873
1874 if ( i_pcr_length <= 0 )
1875 {
1876 i_pcr_length = i_packet_count;
1877 }
1878
1879 for( i = 0; i < i_packet_count; i++ )
1880 {
1881 block_t *p_ts = BufferChainGet( p_chain_ts );
1882 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1883
1884 BufferChainAppend( &new_chain, p_ts );
1885
1886 if( p_ts->i_dts &&
1887 p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
1888 {
1889 mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
1890 mtime_t i_cut_dts = p_ts->i_dts;
1891
1892 p_ts = BufferChainPeek( p_chain_ts );
1893 i++;
1894 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1895 while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
1896 {
1897 p_ts = BufferChainGet( p_chain_ts );
1898 i_max_diff = i_new_dts - p_ts->i_dts;
1899 i_cut_dts = p_ts->i_dts;
1900 BufferChainAppend( &new_chain, p_ts );
1901
1902 p_ts = BufferChainPeek( p_chain_ts );
1903 i++;
1904 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1905 }
1906 msg_Dbg( p_mux, "adjusting rate at %"PRId64"/%"PRId64" (%d/%d)",
1907 i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
1908 p_chain_ts->i_depth );
1909 if ( new_chain.i_depth )
1910 TSDate( p_mux, &new_chain,
1911 i_cut_dts - i_pcr_dts,
1912 i_pcr_dts );
1913 if ( p_chain_ts->i_depth )
1914 TSSchedule( p_mux,
1915 p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
1916 i_cut_dts );
1917 return;
1918 }
1919 }
1920
1921 if ( new_chain.i_depth )
1922 TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
1923 }
1924
1925 static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1926 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1927 {
1928 sout_mux_sys_t *p_sys = p_mux->p_sys;
1929 int i_packet_count = p_chain_ts->i_depth;
1930 int i;
1931
1932 if ( i_pcr_length / 1000 > 0 )
1933 {
1934 int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
1935 / (uint64_t)(i_pcr_length / 1000);
1936 if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
1937 {
1938 msg_Warn( p_mux, "max bitrate exceeded at %"PRId64
1939 " (%d bi/s for %d pkt in %"PRId64" us)",
1940 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1941 i_bitrate, i_packet_count, i_pcr_length);
1942 }
1943 #if 0
1944 else
1945 {
1946 msg_Dbg( p_mux, "starting at %"PRId64
1947 " (%d bi/s for %d packets in %"PRId64" us)",
1948 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1949 i_bitrate, i_packet_count, i_pcr_length);
1950 }
1951 #endif
1952 }
1953 else
1954 {
1955 /* This shouldn't happen, but happens in some rare heavy load
1956 * and packet losses conditions. */
1957 i_pcr_length = i_packet_count;
1958 }
1959
1960 /* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
1961 for( i = 0; i < i_packet_count; i++ )
1962 {
1963 block_t *p_ts = BufferChainGet( p_chain_ts );
1964 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1965
1966 p_ts->i_dts = i_new_dts;
1967 p_ts->i_length = i_pcr_length / i_packet_count;
1968
1969 if( p_ts->i_flags & BLOCK_FLAG_CLOCK )
1970 {
1971 /* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
1972 TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
1973 }
1974 if( p_ts->i_flags & BLOCK_FLAG_SCRAMBLED )
1975 {
1976 vlc_mutex_lock( &p_sys->csa_lock );
1977 csa_Encrypt( p_sys->csa, p_ts->p_buffer, p_sys->i_csa_pkt_size );
1978 vlc_mutex_unlock( &p_sys->csa_lock );
1979 }
1980
1981 /* latency */
1982 p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
1983
1984 sout_AccessOutWrite( p_mux->p_access, p_ts );
1985 }
1986 }
1987
1988 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
1989 bool b_pcr )
1990 {
1991 VLC_UNUSED(p_mux);
1992 block_t *p_pes = p_stream->chain_pes.p_first;
1993 block_t *p_ts;
1994
1995 bool b_new_pes = false;
1996 bool b_adaptation_field = false;
1997
1998 int i_payload_max = 184 - ( b_pcr ? 8 : 0 );
1999 int i_payload;
2000
2001 if( p_stream->i_pes_used <= 0 )
2002 {
2003 b_new_pes = true;
2004 }
2005 i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
2006 i_payload_max );
2007
2008 if( b_pcr || i_payload < i_payload_max )
2009 {
2010 b_adaptation_field = true;
2011 }
2012
2013 p_ts = block_New( p_mux, 188 );
2014
2015 if (b_new_pes && !(p_pes->i_flags & BLOCK_FLAG_NO_KEYFRAME) && p_pes->i_flags & BLOCK_FLAG_TYPE_I)
2016 {
2017 p_ts->i_flags |= BLOCK_FLAG_TYPE_I;
2018 }
2019
2020 p_ts->i_dts = p_pes->i_dts;
2021
2022 p_ts->p_buffer[0] = 0x47;
2023 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
2024 ( ( p_stream->i_pid >> 8 )&0x1f );
2025 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
2026 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
2027 p_stream->i_continuity_counter;
2028
2029 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
2030 p_stream->b_discontinuity = (p_pes->i_flags & BLOCK_FLAG_DISCONTINUITY);
2031
2032 if( b_adaptation_field )
2033 {
2034 int i;
2035
2036 if( b_pcr )
2037 {
2038 int i_stuffing = i_payload_max - i_payload;
2039
2040 p_ts->i_flags |= BLOCK_FLAG_CLOCK;
2041
2042 p_ts->p_buffer[4] = 7 + i_stuffing;
2043 p_ts->p_buffer[5] = 0x10; /* flags */
2044 if( p_stream->b_discontinuity )
2045 {
2046 p_ts->p_buffer[5] |= 0x80; /* flag TS dicontinuity */
2047 p_stream->b_discontinuity = false;
2048 }
2049 p_ts->p_buffer[6] = ( 0 )&0xff;
2050 p_ts->p_buffer[7] = ( 0 )&0xff;
2051 p_ts->p_buffer[8] = ( 0 )&0xff;
2052 p_ts->p_buffer[9] = ( 0 )&0xff;
2053 p_ts->p_buffer[10]= ( ( 0 )&0x80 ) | 0x7e;
2054 p_ts->p_buffer[11]= 0;
2055
2056 for( i = 12; i < 12 + i_stuffing; i++ )
2057 {
2058 p_ts->p_buffer[i] = 0xff;
2059 }
2060 }
2061 else
2062 {
2063 int i_stuffing = i_payload_max - i_payload;
2064
2065 p_ts->p_buffer[4] = i_stuffing - 1;
2066 if( i_stuffing > 1 )
2067 {
2068 p_ts->p_buffer[5] = 0x00;
2069 for( i = 6; i < 6 + i_stuffing - 2; i++ )
2070 {
2071 p_ts->p_buffer[i] = 0xff;
2072 }
2073 }
2074 }
2075 }
2076
2077 /* copy payload */
2078 memcpy( &p_ts->p_buffer[188 - i_payload],
2079 &p_pes->p_buffer[p_stream->i_pes_used], i_payload );
2080
2081 p_stream->i_pes_used += i_payload;
2082 p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
2083 p_stream->i_pes_used / p_pes->i_buffer;
2084 p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
2085
2086 if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
2087 {
2088 p_pes = BufferChainGet( &p_stream->chain_pes );
2089 block_Release( p_pes );
2090
2091 p_pes = p_stream->chain_pes.p_first;
2092 if( p_pes )
2093 {
2094 p_stream->i_pes_dts = p_pes->i_dts;
2095 p_stream->i_pes_length = 0;
2096 while( p_pes )
2097 {
2098 p_stream->i_pes_length += p_pes->i_length;
2099
2100 p_pes = p_pes->p_next;
2101 }
2102 }
2103 else
2104 {
2105 p_stream->i_pes_dts = 0;
2106 p_stream->i_pes_length = 0;
2107 }
2108 p_stream->i_pes_used = 0;
2109 }
2110
2111 return p_ts;
2112 }
2113
2114 static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
2115 {
2116 mtime_t i_pcr = 9 * i_dts / 100;
2117
2118 p_ts->p_buffer[6] = ( i_pcr >> 25 )&0xff;
2119 p_ts->p_buffer[7] = ( i_pcr >> 17 )&0xff;
2120 p_ts->p_buffer[8] = ( i_pcr >> 9 )&0xff;
2121 p_ts->p_buffer[9] = ( i_pcr >> 1 )&0xff;
2122 p_ts->p_buffer[10]|= ( i_pcr << 7 )&0x80;
2123 }
2124
2125 #if 0
2126 static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
2127 mtime_t i_length, int i_bitrate_min,
2128 int i_bitrate_max )
2129 {
2130 sout_mux_sys_t *p_sys = p_mux->p_sys;
2131 sout_buffer_chain_t s = *c;
2132
2133 int i_packets = 0;
2134 int i_packets_min = 0;
2135 int i_packets_max = 0;
2136
2137 if( i_length <= 0 )
2138 {
2139 return;
2140 }
2141
2142 i_packets = c->i_depth;
2143 i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000 + 187 ) / 188;
2144 i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000 + 187 ) / 188;
2145
2146 if( i_packets < i_packets_min && i_packets_min > 0 )
2147 {
2148 block_t *p_pk;
2149 int i_div = ( i_packets_min - i_packets ) / i_packets;
2150 int i_mod = ( i_packets_min - i_packets ) % i_packets;
2151 int i_rest = 0;
2152
2153 /* We need to pad with null packets (pid=0x1fff)
2154 * We try to melt null packets with true packets */
2155 msg_Dbg( p_mux,
2156 "packets=%d but min=%d -> adding %d packets of padding",
2157 i_packets, i_packets_min, i_packets_min - i_packets );
2158
2159 BufferChainInit( c );
2160 while( ( p_pk = BufferChainGet( &s ) ) )
2161 {
2162 int i, i_null;
2163
2164 BufferChainAppend( c, p_pk );
2165
2166 i_null = i_div + ( i_rest + i_mod ) / i_packets;
2167
2168 for( i = 0; i < i_null; i++ )
2169 {
2170 block_t *p_null;
2171
2172 p_null = sout_BufferNew( p_mux->p_sout, 188 );
2173 p_null->p_buffer[0] = 0x47;
2174 p_null->p_buffer[1] = 0x1f;
2175 p_null->p_buffer[2] = 0xff;
2176 p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
2177 memset( &p_null->p_buffer[4], 0, 184 );
2178 p_sys->i_null_continuity_counter =
2179 ( p_sys->i_null_continuity_counter + 1 ) % 16;
2180
2181 BufferChainAppend( c, p_null );
2182 }
2183
2184 i_rest = ( i_rest + i_mod ) % i_packets;
2185 }
2186 }
2187 else if( i_packets > i_packets_max && i_packets_max > 0 )
2188 {
2189 block_t *p_pk;
2190 int i;
2191
2192 /* Arg, we need to drop packets, I don't do something clever (like
2193 * dropping complete pid, b frames, ... ), I just get the right amount
2194 * of packets and discard the others */
2195 msg_Warn( p_mux,
2196 "packets=%d but max=%d -> removing %d packets -> stream broken",
2197 i_packets, i_packets_max, i_packets - i_packets_max );
2198
2199 BufferChainInit( c );
2200 for( i = 0; i < i_packets_max; i++ )
2201 {
2202 BufferChainAppend( c, BufferChainGet( &s ) );
2203 }
2204
2205 while( ( p_pk = BufferChainGet( &s ) ) )
2206 {
2207 sout_BufferDelete( p_mux->p_sout, p_pk );
2208 }
2209 }
2210 }
2211 #endif
2212
2213 static void PEStoTS( sout_instance_t *p_sout,
2214 sout_buffer_chain_t *c, block_t *p_pes,
2215 ts_stream_t *p_stream )
2216 {
2217 VLC_UNUSED(p_sout);
2218 uint8_t *p_data;
2219 int i_size;
2220 int b_new_pes;
2221
2222 /* get PES total size */
2223 i_size = p_pes->i_buffer;
2224 p_data = p_pes->p_buffer;
2225
2226 b_new_pes = true;
2227
2228 for( ;; )
2229 {
2230 int b_adaptation_field;
2231 int i_copy;
2232 block_t *p_ts;
2233
2234 p_ts = block_New( p_sout, 188 );
2235 /* write header
2236 * 8b 0x47 sync byte
2237 * 1b transport_error_indicator
2238 * 1b payload_unit_start
2239 * 1b transport_priority
2240 * 13b pid
2241 * 2b transport_scrambling_control
2242 * 2b if adaptation_field 0x03 else 0x01
2243 * 4b continuity_counter
2244 */
2245
2246 i_copy = __MIN( i_size, 184 );
2247 b_adaptation_field = i_size < 184 ? true : false;
2248
2249 p_ts->p_buffer[0] = 0x47;
2250 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
2251 ( ( p_stream->i_pid >> 8 )&0x1f );
2252 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
2253 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
2254 p_stream->i_continuity_counter;
2255
2256 b_new_pes = false;
2257 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
2258
2259 if( b_adaptation_field )
2260 {
2261 int i_stuffing = 184 - i_copy;
2262 int i;
2263
2264 p_ts->p_buffer[4] = i_stuffing - 1;
2265 if( i_stuffing > 1 )
2266 {
2267 p_ts->p_buffer[5] = 0x00;
2268 if( p_stream->b_discontinuity )
2269 {
2270 p_ts->p_buffer[5] |= 0x80;
2271 p_stream->b_discontinuity = false;
2272 }
2273 for( i = 6; i < 6 + i_stuffing - 2; i++ )
2274 {
2275 p_ts->p_buffer[i] = 0xff;
2276 }
2277 }
2278 }
2279 /* copy payload */
2280 memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
2281 p_data += i_copy;
2282 i_size -= i_copy;
2283
2284 BufferChainAppend( c, p_ts );
2285
2286 if( i_size <= 0 )
2287 {
2288 block_t *p_next = p_pes->p_next;
2289
2290 p_pes->p_next = NULL;
2291 block_Release( p_pes );
2292 if( p_next == NULL )
2293 {
2294 break;
2295 }
2296 b_new_pes = true;
2297 p_pes = p_next;
2298 i_size = p_pes->i_buffer;
2299 p_data = p_pes->p_buffer;
2300 }
2301 }
2302
2303 return;
2304 }
2305
2306 static block_t *WritePSISection( sout_instance_t *p_sout,
2307 dvbpsi_psi_section_t* p_section )
2308 {
2309 VLC_UNUSED(p_sout);
2310 block_t *p_psi, *p_first = NULL;
2311
2312 while( p_section )
2313 {
2314 int i_size;
2315
2316 i_size = (uint32_t)( p_section->p_payload_end - p_section->p_data )+
2317 ( p_section->b_syntax_indicator ? 4 : 0 );
2318
2319 p_psi = block_New( p_sout, i_size + 1 );
2320 p_psi->i_pts = 0;
2321 p_psi->i_dts = 0;
2322 p_psi->i_length = 0;
2323 p_psi->i_buffer = i_size + 1;
2324
2325 p_psi->p_buffer[0] = 0; /* pointer */
2326 memcpy( p_psi->p_buffer + 1,
2327 p_section->p_data,
2328 i_size );
2329
2330 block_ChainAppend( &p_first, p_psi );
2331
2332 p_section = p_section->p_next;
2333 }
2334
2335 return( p_first );
2336 }
2337
2338 static void GetPAT( sout_mux_t *p_mux,
2339 sout_buffer_chain_t *c )
2340 {
2341 sout_mux_sys_t *p_sys = p_mux->p_sys;
2342 block_t *p_pat;
2343 dvbpsi_pat_t pat;
2344 dvbpsi_psi_section_t *p_section;
2345 int i;
2346
2347 dvbpsi_InitPAT( &pat, p_sys->i_tsid, p_sys->i_pat_version_number,
2348 1 ); /* b_current_next */
2349 /* add all programs */
2350 for ( i = 0; i < p_sys->i_num_pmt; i++ )
2351 dvbpsi_PATAddProgram( &pat,
2352 p_sys->i_pmt_program_number[i],
2353 p_sys->pmt[i].i_pid );
2354
2355 p_section = dvbpsi_GenPATSections( &pat,
2356 0 ); /* max program per section */
2357
2358 p_pat = WritePSISection( p_mux->p_sout, p_section );
2359
2360 PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
2361
2362 dvbpsi_DeletePSISections( p_section );
2363 dvbpsi_EmptyPAT( &pat );
2364 }
2365
2366 static uint32_t GetDescriptorLength24b( int i_length )
2367 {
2368 uint32_t i_l1, i_l2, i_l3;
2369
2370 i_l1 = i_length&0x7f;
2371 i_l2 = ( i_length >> 7 )&0x7f;
2372 i_l3 = ( i_length >> 14 )&0x7f;
2373
2374 return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
2375 }
2376
2377 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c )
2378 {
2379 sout_mux_sys_t *p_sys = p_mux->p_sys;
2380 block_t *p_pmt[MAX_PMT];
2381
2382 dvbpsi_pmt_es_t *p_es;
2383 dvbpsi_psi_section_t *p_section[MAX_PMT];
2384
2385 int i_pidinput;
2386 int i_stream;
2387 int i;
2388 int *p_usepid = NULL;
2389
2390 #ifdef HAVE_DVBPSI_SDT
2391 block_t *p_sdt;
2392 dvbpsi_sdt_t sdt;
2393
2394 dvbpsi_psi_section_t* p_section2;
2395 dvbpsi_sdt_service_t *p_service;
2396
2397 uint8_t *psz_sdt_desc;
2398 #endif
2399
2400 if( p_sys->dvbpmt == NULL )
2401 {
2402 p_sys->dvbpmt = malloc( p_sys->i_num_pmt * sizeof(dvbpsi_pmt_t) );
2403 if( !p_sys->dvbpmt )
2404 {
2405 return;
2406 }
2407 }
2408 #ifdef HAVE_DVBPSI_SDT
2409 if( p_sys->b_sdt )
2410 dvbpsi_InitSDT( &sdt, p_sys->i_tsid, 1, 1, p_sys->i_netid );
2411 #endif
2412
2413 for( i = 0; i < p_sys->i_num_pmt; i++ )
2414 {
2415 dvbpsi_InitPMT( &p_sys->dvbpmt[i],
2416 p_sys->i_pmt_program_number[i], /* program number */
2417 p_sys->i_pmt_version_number,
2418 1, /* b_current_next */
2419 p_sys->i_pcr_pid );
2420
2421 #ifdef HAVE_DVBPSI_SDT
2422 if( p_sys->b_sdt )
2423 {
2424 p_service = dvbpsi_SDTAddService( &sdt,
2425 p_sys->i_pmt_program_number[i], /* service id */
2426 0, /* eit schedule */
2427 0, /* eit present */
2428 4, /* running status ("4=RUNNING") */
2429 0 ); /* free ca */
2430
2431 #define psz_sdtprov p_sys->sdt_descriptors[i].psz_provider
2432 #define psz_sdtserv p_sys->sdt_descriptors[i].psz_service_name
2433
2434 /* FIXME: Ineffecient malloc's & ugly code...... */
2435 if( ( psz_sdtprov != NULL ) && ( psz_sdtserv != NULL ) )
2436 {
2437 psz_sdt_desc = malloc( 3 + strlen(psz_sdtprov)
2438 + strlen(psz_sdtserv) );
2439 if( psz_sdt_desc )
2440 {
2441 psz_sdt_desc[0] = 0x01; /* digital television service */
2442
2443 /* service provider name length */
2444 psz_sdt_desc[1] = (char)strlen(psz_sdtprov);
2445 memcpy( &psz_sdt_desc[2], psz_sdtprov, strlen(psz_sdtprov) );
2446
2447 /* service name length */
2448 psz_sdt_desc[ 2 + strlen(psz_sdtprov) ]
2449 = (char)strlen(psz_sdtserv);
2450 memcpy( &psz_sdt_desc[3+strlen(psz_sdtprov)], psz_sdtserv,
2451 strlen(psz_sdtserv) );
2452
2453 dvbpsi_SDTServiceAddDescriptor( p_service, 0x48,
2454 3 + strlen(psz_sdtprov) + strlen(psz_sdtserv),
2455 (uint8_t *)psz_sdt_desc );
2456 free( psz_sdt_desc );
2457 psz_sdt_desc = NULL;
2458 }
2459 }
2460 #undef psz_sdtprov
2461 #undef psz_sdtserv
2462 }
2463 #endif
2464 }
2465
2466 if( p_sys->i_mpeg4_streams > 0 )
2467 {
2468 uint8_t iod[4096];
2469 bits_buffer_t bits;
2470 bits_buffer_t bits_fix_IOD;
2471
2472 /* Make valgrind happy : it works at byte level not bit one so
2473 * bit_write confuse it (but DON'T CHANGE the way that bit_write is
2474 * working (needed when fixing some bits) */
2475 memset( iod, 0, 4096 );
2476
2477 bits_initwrite( &bits, 4096, iod );
2478 /* IOD_label_scope */
2479 bits_write( &bits, 8, 0x11 );
2480 /* IOD_label */
2481 bits_write( &bits, 8, 0x01 );
2482 /* InitialObjectDescriptor */
2483 bits_align( &bits );
2484 bits_write( &bits, 8, 0x02 ); /* tag */
2485 bits_fix_IOD = bits; /* save states to fix length later */
2486 bits_write( &bits, 24,
2487 GetDescriptorLength24b( 0 ) ); /* variable length (fixed later) */
2488 bits_write( &bits, 10, 0x01 ); /* ObjectDescriptorID */
2489 bits_write( &bits, 1, 0x00 ); /* URL Flag */
2490 bits_write( &bits, 1, 0x00 ); /* includeInlineProfileLevelFlag */
2491 bits_write( &bits, 4, 0x0f ); /* reserved */
2492 bits_write( &bits, 8, 0xff ); /* ODProfile (no ODcapability ) */
2493 bits_write( &bits, 8, 0xff ); /* sceneProfile */
2494 bits_write( &bits, 8, 0xfe ); /* audioProfile (unspecified) */
2495 bits_write( &bits, 8, 0xfe ); /* visualProfile( // ) */
2496 bits_write( &bits, 8, 0xff ); /* graphicProfile (no ) */
2497 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
2498 {
2499 ts_stream_t *p_stream;
2500 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
2501
2502 if( p_stream->i_stream_id == 0xfa ||
2503 p_stream->i_stream_id == 0xfb ||
2504 p_stream->i_stream_id == 0xfe )
2505 {
2506 bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
2507 /* ES descriptor */
2508 bits_align( &bits );
2509 bits_write( &bits, 8, 0x03 ); /* ES_DescrTag */
2510 bits_fix_ESDescr = bits;
2511 bits_write( &bits, 24,
2512 GetDescriptorLength24b( 0 ) ); /* variable size */
2513 bits_write( &bits, 16, p_stream->i_es_id );
2514 bits_write( &bits, 1, 0x00 ); /* streamDependency */
2515 bits_write( &bits, 1, 0x00 ); /* URL Flag */
2516 bits_write( &bits, 1, 0x00 ); /* OCRStreamFlag */
2517 bits_write( &bits, 5, 0x1f ); /* streamPriority */
2518
2519 /* DecoderConfigDesciptor */
2520 bits_align( &bits );
2521 bits_write( &bits, 8, 0x04 ); /* DecoderConfigDescrTag */
2522 bits_fix_Decoder = bits;
2523 bits_write( &bits, 24, GetDescriptorLength24b( 0 ) );
2524 if( p_stream->i_stream_type == 0x10 )
2525 {
2526 bits_write( &bits, 8, 0x20 ); /* Visual 14496-2 */
2527 bits_write( &bits, 6, 0x04 ); /* VisualStream */
2528 }
2529 else if( p_stream->i_stream_type == 0x1b )
2530 {
2531 bits_write( &bits, 8, 0x21 ); /* Visual 14496-2 */
2532 bits_write( &bits, 6, 0x04 ); /* VisualStream */
2533 }
2534 else if( p_stream->i_stream_type == 0x11 ||
2535 p_stream->i_stream_type == 0x0f )
2536 {
2537 bits_write( &bits, 8, 0x40 ); /* Audio 14496-3 */
2538 bits_write( &bits, 6, 0x05 ); /* AudioStream */
2539 }
2540 else if( p_stream->i_stream_type == 0x12 &&
2541 p_stream->i_codec == VLC_CODEC_SUBT )
2542 {
2543 bits_write( &bits, 8, 0x0B ); /* Text Stream */
2544 bits_write( &bits, 6, 0x04 ); /* VisualStream */
2545 }
2546 else
2547 {
2548 bits_write( &bits, 8, 0x00 );
2549 bits_write( &bits, 6, 0x00 );
2550
2551 msg_Err( p_mux->p_sout,"Unsupported stream_type => "
2552 "broken IOD" );
2553 }
2554 bits_write( &bits, 1, 0x00 ); /* UpStream */
2555 bits_write( &bits, 1, 0x01 ); /* reserved */
2556 bits_write( &bits, 24, 1024 * 1024 ); /* bufferSizeDB */
2557 bits_write( &bits, 32, 0x7fffffff ); /* maxBitrate */
2558 bits_write( &bits, 32, 0 ); /* avgBitrate */
2559
2560 if( p_stream->i_decoder_specific_info > 0 )
2561 {
2562 int i;
2563 /* DecoderSpecificInfo */
2564 bits_align( &bits );
2565 bits_write( &bits, 8, 0x05 ); /* tag */
2566 bits_write( &bits, 24, GetDescriptorLength24b(
2567 p_stream->i_decoder_specific_info ) );
2568 for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
2569 {
2570 bits_write( &bits, 8,
2571 ((uint8_t*)p_stream->p_decoder_specific_info)[i] );
2572 }
2573 }
2574 /* fix Decoder length */
2575 bits_write( &bits_fix_Decoder, 24,
2576 GetDescriptorLength24b( bits.i_data -
2577 bits_fix_Decoder.i_data - 3 ) );
2578
2579 /* SLConfigDescriptor : predefined (0x01) */
2580 bits_align( &bits );
2581 bits_write( &bits, 8, 0x06 ); /* tag */
2582 bits_write( &bits, 24, GetDescriptorLength24b( 8 ) );
2583 bits_write( &bits, 8, 0x01 );/* predefined */
2584 bits_write( &bits, 1, 0 ); /* durationFlag */
2585 bits_write( &bits, 32, 0 ); /* OCRResolution */
2586 bits_write( &bits, 8, 0 ); /* OCRLength */
2587 bits_write( &bits, 8, 0 ); /* InstantBitrateLength */
2588 bits_align( &bits );
2589
2590 /* fix ESDescr length */
2591 bits_write( &bits_fix_ESDescr, 24,
2592 GetDescriptorLength24b( bits.i_data -
2593 bits_fix_ESDescr.i_data - 3 ) );
2594 }
2595 }
2596 bits_align( &bits );
2597 /* fix IOD length */
2598 bits_write( &bits_fix_IOD, 24,
2599 GetDescriptorLength24b( bits.i_data -
2600 bits_fix_IOD.i_data - 3 ) );
2601
2602 #if 0 /* FIXME!!! This can't possibly work */
2603 i_pidinput = p_mux->pp_inputs[i]->p_fmt->i_id;
2604 p_usepid = bsearch( &i_pidinput, p_sys->pmtmap, p_sys->i_pmtslots,
2605 sizeof(pmt_map_t), intcompare );
2606 p_usepid = bsearch( &p_usepid, p_sys->pmtmap, p_sys->i_num_pmt,
2607 sizeof(pmt_map_t), pmtcompare );
2608 if( p_usepid != NULL )
2609 dvbpsi_PMTAddDescriptor(
2610 &p_sys->dvbpmt[((pmt_map_t *)p_usepid)->i_prog], 0x1d,
2611 bits.i_data, bits.p_data );
2612 else
2613 msg_Err( p_mux, "Received an unmapped PID" );
2614 #else
2615 dvbpsi_PMTAddDescriptor( &p_sys->dvbpmt[0], 0x1d, bits.i_data,
2616 bits.p_data );
2617 #endif
2618 }
2619
2620 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
2621 {
2622 ts_stream_t *p_stream;
2623
2624 p_stream = (ts_stream_t *)p_mux->pp_inputs[i_stream]->p_sys;
2625
2626 i_pidinput = p_mux->pp_inputs[i_stream]->p_fmt->i_id;
2627 p_usepid = bsearch( &i_pidinput, p_sys->pmtmap, p_sys->i_pmtslots,
2628 sizeof(pmt_map_t), intcompare );
2629
2630 if( p_usepid != NULL )
2631 p_es = dvbpsi_PMTAddES(
2632 &p_sys->dvbpmt[((pmt_map_t *)p_usepid)->i_prog],
2633 p_stream->i_stream_type, p_stream->i_pid );
2634 else
2635 /* If there's an error somewhere, dump it to the first pmt */
2636 p_es = dvbpsi_PMTAddES( &p_sys->dvbpmt[0], p_stream->i_stream_type,
2637 p_stream->i_pid );
2638
2639 if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
2640 {
2641 uint8_t es_id[2];
2642
2643 /* SL descriptor */
2644 es_id[0] = (p_stream->i_es_id >> 8)&0xff;
2645 es_id[1] = (p_stream->i_es_id)&0xff;
2646 dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
2647 }
2648 else if( p_stream->i_stream_type == 0xa0 )
2649 {
2650 uint8_t data[512];
2651 int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
2652
2653 /* private DIV3 descripor */
2654 memcpy( &data[0], &p_stream->i_bih_codec, 4 );
2655 data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
2656 data[5] = ( p_stream->i_bih_width )&0xff;
2657 data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
2658 data[7] = ( p_stream->i_bih_height )&0xff;
2659 data[8] = ( i_extra >> 8 )&0xff;
2660 data[9] = ( i_extra )&0xff;
2661 if( i_extra > 0 )
2662 {
2663 memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
2664 }
2665
2666 /* 0xa0 is private */
2667 dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
2668 }
2669 else if( p_stream->i_stream_type == 0x81 )
2670 {
2671 uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
2672
2673 /* "registration" descriptor : "AC-3" */
2674 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
2675 }
2676 else if( p_stream->i_codec == VLC_CODEC_DIRAC )
2677 {
2678 /* Dirac registration descriptor */
2679
2680 uint8_t data[4] = { 'd', 'r', 'a', 'c' };
2681 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
2682 }
2683 else if( p_stream->i_codec == VLC_CODEC_DTS )
2684 {
2685 /* DTS registration descriptor (ETSI TS 101 154 Annex F) */
2686
2687 /* DTS format identifier, frame size 1024 - FIXME */
2688 uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
2689 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
2690 }
2691 else if( p_stream->i_codec == VLC_CODEC_EAC3 )
2692 {
2693 uint8_t data[1] = { 0x00 };
2694 dvbpsi_PMTESAddDescriptor( p_es, 0x7a, 1, data );
2695 }
2696 else if( p_stream->i_codec == VLC_CODEC_TELETEXT )
2697 {
2698 if( p_stream->i_decoder_specific_info )
2699 {
2700 dvbpsi_PMTESAddDescriptor( p_es, 0x56,
2701 p_stream->i_decoder_specific_info,
2702 p_stream->p_decoder_specific_info );
2703 }
2704 continue;
2705 }
2706 else if( p_stream->i_codec == VLC_CODEC_DVBS )
2707 {
2708 /* DVB subtitles */
2709 if( p_stream->i_decoder_specific_info )
2710 {
2711 /* pass-through from the TS demux */
2712 dvbpsi_PMTESAddDescriptor( p_es, 0x59,
2713 p_stream->i_decoder_specific_info,
2714 p_stream->p_decoder_specific_info );
2715 }
2716 else
2717 {
2718 /* from the dvbsub transcoder */
2719 dvbpsi_subtitling_dr_t descr;
2720 dvbpsi_subtitle_t sub;
2721 dvbpsi_descriptor_t *p_descr;
2722
2723 memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
2724 sub.i_subtitling_type = 0x10; /* no aspect-ratio criticality */
2725 sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
2726 sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
2727
2728 descr.i_subtitles_number = 1;
2729 descr.p_subtitle[0] = sub;
2730
2731 p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
2732 /* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
2733 dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
2734 p_descr->i_length, p_descr->p_data );
2735 }
2736 continue;
2737 }
2738
2739 if( p_stream->lang[0] != 0 )
2740 {
2741 uint8_t data[4*p_stream->i_langs];
2742
2743 /* I construct the content myself, way faster than looking at
2744 * over complicated/mind broken libdvbpsi way */
2745 for(i = 0; i < p_stream->i_langs; i++ )
2746 {
2747 data[i*4+0] = p_stream->lang[i*3+0];
2748 data[i*4+1] = p_stream->lang[i*3+1];
2749 data[i*4+2] = p_stream->lang[i*3+2];
2750 data[i*4+3] = 0x00; /* audio type: 0x00 undefined */
2751 }
2752 dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4*p_stream->i_langs, data );
2753 }
2754 }
2755
2756 for( i = 0; i < p_sys->i_num_pmt; i++ )
2757 {
2758 p_section[i] = dvbpsi_GenPMTSections( &p_sys->dvbpmt[i] );
2759 p_pmt[i] = WritePSISection( p_mux->p_sout, p_section[i] );
2760 PEStoTS( p_mux->p_sout, c, p_pmt[i], &p_sys->pmt[i] );
2761 dvbpsi_DeletePSISections( p_section[i] );
2762 dvbpsi_EmptyPMT( &p_sys->dvbpmt[i] );
2763 }
2764
2765 #ifdef HAVE_DVBPSI_SDT
2766 if( p_sys->b_sdt )
2767 {
2768 p_section2 = dvbpsi_GenSDTSections( &sdt );
2769 p_sdt = WritePSISection( p_mux->p_sout, p_section2 );
2770 PEStoTS( p_mux->p_sout, c, p_sdt, &p_sys->sdt );
2771 dvbpsi_DeletePSISections( p_section2 );
2772 dvbpsi_EmptySDT( &sdt );
2773 }
2774 #endif
2775 }
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