1 /*****************************************************************************
2 * ts.c: MPEG-II TS Muxer
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Eric Petit <titer@videolan.org>
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.
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.
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 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
31 #include <vlc/input.h>
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>
49 # include "descriptor.h"
50 # include "tables/pat.h"
51 # include "tables/pmt.h"
52 # include "descriptors/dr.h"
58 * - check PCR frequency requirement
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)
64 * - remove creation of PAT/PMT without dvbpsi
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)
71 /*****************************************************************************
73 *****************************************************************************/
74 static int Open ( vlc_object_t * );
75 static void Close ( vlc_object_t * );
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.")
83 #define SHAPING_TEXT N_("Shaping delay (ms)")
84 #define SHAPING_LONGTEXT N_("If enabled, the TS muxer will cut the " \
85 "stream in slices of the given duration, and ensure a constant bitrate " \
86 "between the two boundaries. This avoids having huge bitrate peaks for " \
87 "reference frames, in particular.")
88 #define KEYF_TEXT N_("Use keyframes")
89 #define KEYF_LONGTEXT N_("If enabled, and shaping is specified, " \
90 "the TS muxer will place the boundaries at the end of I pictures. In " \
91 "that case, the shaping duration given by the user is a worse case " \
92 "used when no reference frame is available. This enhances the efficiency " \
93 "of the shaping algorithm, since I frames are usually the biggest " \
94 "frames in the stream.")
96 #define PCR_TEXT N_("PCR delay (ms)")
97 #define PCR_LONGTEXT N_("This option allows you to set at which interval " \
98 "PCRs (Program Clock Reference) will be sent. " \
99 "This value should be below 100ms. (default is 30)")
101 #define DTS_TEXT N_("DTS delay (ms)")
102 #define DTS_LONGTEXT N_("This option will delay the DTS (decoding time " \
103 "stamps) and PTS (presentation timestamps) of the data in the " \
104 "stream, compared to the PCRs. This allows for some buffering inside " \
105 "the client decoder.")
107 #define ACRYPT_TEXT N_("Crypt audio")
108 #define ACRYPT_LONGTEXT N_("Crypt audio using CSA")
110 #define CK_TEXT N_("CSA Key")
111 #define CK_LONGTEXT N_("Defines the CSA encryption key. This must be a " \
112 "16 char string (8 hexadecimal bytes).")
114 #define SOUT_CFG_PREFIX "sout-ts-"
117 set_description( _("TS muxer (libdvbpsi)") );
118 set_capability( "sout mux", 120 );
119 add_shortcut( "ts" );
121 add_integer( SOUT_CFG_PREFIX "pid-video", 0, NULL,VPID_TEXT, VPID_LONGTEXT,
123 add_integer( SOUT_CFG_PREFIX "pid-audio", 0, NULL, APID_TEXT,
124 APID_LONGTEXT, VLC_TRUE );
126 add_integer( SOUT_CFG_PREFIX "shaping", 200, NULL,SHAPING_TEXT,
127 SHAPING_LONGTEXT, VLC_TRUE );
128 add_bool( SOUT_CFG_PREFIX "use-key-frames", VLC_FALSE, NULL, KEYF_TEXT,
129 KEYF_LONGTEXT, VLC_TRUE );
131 add_integer( SOUT_CFG_PREFIX "pcr", 30, NULL, PCR_TEXT, PCR_LONGTEXT,
133 add_integer( SOUT_CFG_PREFIX "dts-delay", 200, NULL, DTS_TEXT,
134 DTS_LONGTEXT, VLC_TRUE );
136 add_bool( SOUT_CFG_PREFIX "crypt-audio", VLC_TRUE, NULL, ACRYPT_TEXT,
137 ACRYPT_LONGTEXT, VLC_TRUE );
139 add_string( SOUT_CFG_PREFIX "csa-ck", NULL, NULL, CK_TEXT, CK_LONGTEXT,
142 set_callbacks( Open, Close );
145 /*****************************************************************************
146 * Local data structures
147 *****************************************************************************/
148 static const char *ppsz_sout_options[] = {
149 "pid-video", "pid-audio", "shaping", "pcr",
150 "use-key-frames", "dts-delay", "csa-ck", "crypt-audio", NULL
153 #define SOUT_BUFFER_FLAGS_PRIVATE_PCR ( 1 << BLOCK_FLAG_PRIVATE_SHIFT )
154 #define SOUT_BUFFER_FLAGS_PRIVATE_CSA ( 2 << BLOCK_FLAG_PRIVATE_SHIFT )
160 } sout_buffer_chain_t;
162 static inline void BufferChainInit ( sout_buffer_chain_t *c )
166 c->pp_last = &c->p_first;
168 static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
178 c->pp_last = &b->p_next;
180 static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
182 block_t *b = c->p_first;
187 c->p_first = b->p_next;
189 if( c->p_first == NULL )
191 c->pp_last = &c->p_first;
198 static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
200 block_t *b = c->p_first;
204 static inline void BufferChainClean( sout_instance_t *p_sout,
205 sout_buffer_chain_t *c )
209 while( ( b = BufferChainGet( c ) ) )
213 BufferChainInit( c );
216 typedef struct ts_stream_t
219 vlc_fourcc_t i_codec;
223 int i_continuity_counter;
225 /* to be used for carriege of DIV3 */
226 vlc_fourcc_t i_bih_codec;
227 int i_bih_width, i_bih_height;
229 /* Specific to mpeg4 in mpeg2ts */
232 int i_decoder_specific_info;
233 uint8_t *p_decoder_specific_info;
235 /* language is iso639-2T */
238 sout_buffer_chain_t chain_pes;
240 mtime_t i_pes_length;
242 vlc_bool_t b_key_frame;
246 struct sout_mux_sys_t
249 sout_input_t *p_pcr_input;
256 int i_pid_free; // first usable pid
258 int i_pat_version_number;
261 int i_pmt_version_number;
262 ts_stream_t pmt; // Up to now only one program
266 int i_null_continuity_counter; /* Needed ? */
268 /* for TS building */
269 int64_t i_bitrate_min;
270 int64_t i_bitrate_max;
272 int64_t i_shaping_delay;
277 vlc_bool_t b_use_key_frames;
279 mtime_t i_pcr; /* last PCR emited */
282 vlc_bool_t b_crypt_audio;
286 /* Reserve a pid and return it */
287 static int AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
290 if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
292 i_pid = p_sys->i_pid_video;
293 p_sys->i_pid_video = 0;
295 else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
297 i_pid = p_sys->i_pid_audio;
298 p_sys->i_pid_audio = 0;
302 i_pid = ++p_sys->i_pid_free;
307 /*****************************************************************************
309 *****************************************************************************/
310 static int Capability(sout_mux_t *, int, void *, void * );
311 static int AddStream( sout_mux_t *, sout_input_t * );
312 static int DelStream( sout_mux_t *, sout_input_t * );
313 static int Mux ( sout_mux_t * );
315 static void TSSchedule ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
316 mtime_t i_pcr_length, mtime_t i_pcr_dts );
317 static void TSDate ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
318 mtime_t i_pcr_length, mtime_t i_pcr_dts );
319 static void GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
320 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
322 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, vlc_bool_t b_pcr );
323 static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
325 static void PEStoTS ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
327 /*****************************************************************************
329 *****************************************************************************/
330 static int Open( vlc_object_t *p_this )
332 sout_mux_t *p_mux =(sout_mux_t*)p_this;
333 sout_mux_sys_t *p_sys;
336 msg_Dbg( p_mux, "Open" );
337 sout_ParseCfg( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
339 p_sys = malloc( sizeof( sout_mux_sys_t ) );
341 p_mux->pf_capacity = Capability;
342 p_mux->pf_addstream = AddStream;
343 p_mux->pf_delstream = DelStream;
345 p_mux->p_sys = p_sys;
347 srand( (uint32_t)mdate() );
349 p_sys->i_audio_bound = 0;
350 p_sys->i_video_bound = 0;
352 p_sys->i_pat_version_number = rand() % 32;
353 p_sys->pat.i_pid = 0;
354 p_sys->pat.i_continuity_counter = 0;
356 p_sys->i_pmt_version_number = rand() % 32;
357 p_sys->pmt.i_pid = 0x42;
358 p_sys->pmt.i_continuity_counter = 0;
360 p_sys->i_pid_free = 0x43;
362 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
363 p_sys->i_pid_video = val.i_int;
364 if ( p_sys->i_pid_video > p_sys->i_pid_free )
366 p_sys->i_pid_free = p_sys->i_pid_video + 1;
369 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
370 p_sys->i_pid_audio = val.i_int;
371 if ( p_sys->i_pid_audio > p_sys->i_pid_free )
373 p_sys->i_pid_free = p_sys->i_pid_audio + 1;
376 p_sys->i_pcr_pid = 0x1fff;
377 p_sys->p_pcr_input = NULL;
379 p_sys->i_mpeg4_streams = 0;
381 p_sys->i_null_continuity_counter = 0;
383 /* Allow to create constrained stream */
384 var_Get( p_mux, SOUT_CFG_PREFIX "bmin", &val );
385 p_sys->i_bitrate_min = 0;/*val.i_int;*/
387 var_Get( p_mux, SOUT_CFG_PREFIX "bmax", &val );
388 p_sys->i_bitrate_max = 0;/*val.i_int;*/
390 if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
391 p_sys->i_bitrate_min > p_sys->i_bitrate_max )
393 msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
394 "disabling bitrate control" );
395 p_sys->i_bitrate_min = 0;
396 p_sys->i_bitrate_max = 0;
398 if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
400 msg_Err( p_mux, "bmin and bmax no more supported "
401 "(if you need them report it)" );
404 var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
405 p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
406 if( p_sys->i_shaping_delay <= 0 )
409 "invalid shaping ("I64Fd"ms) resetting to 200ms",
410 p_sys->i_shaping_delay / 1000 );
411 p_sys->i_shaping_delay = 200000;
414 var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
415 p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
416 if( p_sys->i_pcr_delay <= 0 ||
417 p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
420 "invalid pcr delay ("I64Fd"ms) resetting to 30ms",
421 p_sys->i_pcr_delay / 1000 );
422 p_sys->i_pcr_delay = 30000;
425 var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
426 p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
428 msg_Dbg( p_mux, "shaping="I64Fd" pcr="I64Fd" dts_delay="I64Fd,
429 p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
431 var_Get( p_mux, SOUT_CFG_PREFIX "use-key-frames", &val );
432 p_sys->b_use_key_frames = val.b_bool;
434 /* for TS generation */
438 var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
441 char *psz = val.psz_string;
444 if( psz[0] == '0' && ( psz[1] == 'x' || psz[1] == 'X' ) )
448 if( strlen( psz ) != 16 )
450 msg_Dbg( p_mux, "invalid csa ck (it must be 16 chars long)" );
454 uint64_t i_ck = strtoll( psz, NULL, 16 );
458 for( i = 0; i < 8; i++ )
460 ck[i] = ( i_ck >> ( 56 - 8*i) )&0xff;
463 msg_Dbg( p_mux, "using CSA scrambling with ck=%x:%x:%x:%x:%x:%x:%x:%x",
464 ck[0], ck[1], ck[2], ck[3], ck[4], ck[5], ck[6], ck[7] );
466 p_sys->csa = csa_New();
467 csa_SetCW( p_sys->csa, ck, ck );
470 if( val.psz_string ) free( val.psz_string );
472 var_Get( p_mux, SOUT_CFG_PREFIX "crypt-audio", &val );
473 p_sys->b_crypt_audio = val.b_bool;
478 /*****************************************************************************
480 *****************************************************************************/
481 static void Close( vlc_object_t * p_this )
483 sout_mux_t *p_mux = (sout_mux_t*)p_this;
484 sout_mux_sys_t *p_sys = p_mux->p_sys;
486 msg_Dbg( p_mux, "Close" );
489 csa_Delete( p_sys->csa );
495 /*****************************************************************************
497 *****************************************************************************/
498 static int Capability( sout_mux_t *p_mux, int i_query, void *p_args,
503 case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
504 *(vlc_bool_t*)p_answer = VLC_TRUE;
505 return( SOUT_MUX_CAP_ERR_OK );
507 return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
511 /*****************************************************************************
512 * AddStream: called for each stream addition
513 *****************************************************************************/
514 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
516 sout_mux_sys_t *p_sys = p_mux->p_sys;
517 ts_stream_t *p_stream;
519 p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
521 /* Init this new stream */
522 p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
523 p_stream->i_codec = p_input->p_fmt->i_codec;
524 p_stream->i_continuity_counter = 0;
525 p_stream->i_decoder_specific_info = 0;
526 p_stream->p_decoder_specific_info = NULL;
528 msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
529 (char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
531 /* All others fields depand on codec */
532 switch( p_input->p_fmt->i_cat )
535 switch( p_input->p_fmt->i_codec )
537 case VLC_FOURCC( 'm', 'p','g', 'v' ):
538 /* TODO: do we need to check MPEG-I/II ? */
539 p_stream->i_stream_type = 0x02;
540 p_stream->i_stream_id = 0xe0;
542 case VLC_FOURCC( 'm', 'p','4', 'v' ):
543 p_stream->i_stream_type = 0x10;
544 p_stream->i_stream_id = 0xfa;
545 p_sys->i_mpeg4_streams++;
546 p_stream->i_es_id = p_stream->i_pid;
548 case VLC_FOURCC( 'h', '2','6', '4' ):
549 p_stream->i_stream_type = 0x1b;
550 p_stream->i_stream_id = 0xe0;
552 /* XXX dirty dirty but somebody want that:
553 * using crapy MS-codec XXX */
554 /* I didn't want to do that :P */
555 case VLC_FOURCC( 'H', '2', '6', '3' ):
556 case VLC_FOURCC( 'I', '2', '6', '3' ):
557 case VLC_FOURCC( 'W', 'M', 'V', '2' ):
558 case VLC_FOURCC( 'W', 'M', 'V', '1' ):
559 case VLC_FOURCC( 'D', 'I', 'V', '3' ):
560 case VLC_FOURCC( 'D', 'I', 'V', '2' ):
561 case VLC_FOURCC( 'D', 'I', 'V', '1' ):
562 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
563 p_stream->i_stream_type = 0xa0; // private
564 p_stream->i_stream_id = 0xa0; // beurk
565 p_stream->i_bih_codec = p_input->p_fmt->i_codec;
566 p_stream->i_bih_width = p_input->p_fmt->video.i_width;
567 p_stream->i_bih_height = p_input->p_fmt->video.i_height;
573 p_sys->i_video_bound++;
577 switch( p_input->p_fmt->i_codec )
579 case VLC_FOURCC( 'm', 'p','g', 'a' ):
580 p_stream->i_stream_type =
581 p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
582 p_stream->i_stream_id = 0xc0;
584 case VLC_FOURCC( 'a', '5','2', ' ' ):
585 p_stream->i_stream_type = 0x81;
586 p_stream->i_stream_id = 0xbd;
588 case VLC_FOURCC( 'l', 'p','c', 'm' ):
589 p_stream->i_stream_type = 0x83;
590 p_stream->i_stream_id = 0xbd;
592 case VLC_FOURCC( 'd', 't','s', ' ' ):
593 p_stream->i_stream_type = 0x06;
594 p_stream->i_stream_id = 0xbd;
597 case VLC_FOURCC( 'm', 'p','4', 'a' ):
598 p_stream->i_stream_type = 0x11;
599 p_stream->i_stream_id = 0xfa;
600 p_sys->i_mpeg4_streams++;
601 p_stream->i_es_id = p_stream->i_pid;
607 p_sys->i_audio_bound++;
611 switch( p_input->p_fmt->i_codec )
613 case VLC_FOURCC( 's', 'p','u', ' ' ):
614 p_stream->i_stream_type = 0x82;
615 p_stream->i_stream_id = 0xbd;
617 case VLC_FOURCC( 's', 'u','b', 't' ):
618 p_stream->i_stream_type = 0x12;
619 p_stream->i_stream_id = 0xfa;
620 p_sys->i_mpeg4_streams++;
621 p_stream->i_es_id = p_stream->i_pid;
623 case VLC_FOURCC('d','v','b','s'):
624 p_stream->i_stream_type = 0x06;
625 p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
626 p_stream->i_stream_id = 0xa0;
641 p_stream->lang[2] = '\0';
642 if( p_input->p_fmt->psz_language )
644 char *psz = p_input->p_fmt->psz_language;
645 const iso639_lang_t *pl = NULL;
647 if( strlen( psz ) == 2 )
649 pl = GetLang_1( psz );
651 else if( strlen( psz ) == 3 )
653 pl = GetLang_2B( psz );
654 if( !strcmp( pl->psz_iso639_1, "??" ) )
656 pl = GetLang_2T( psz );
659 if( pl && strcmp( pl->psz_iso639_1, "??" ) )
661 p_stream->lang[0] = pl->psz_iso639_2T[0];
662 p_stream->lang[1] = pl->psz_iso639_2T[1];
663 p_stream->lang[2] = pl->psz_iso639_2T[2];
665 msg_Dbg( p_mux, " - lang=%c%c%c",
666 p_stream->lang[0], p_stream->lang[1], p_stream->lang[2] );
671 /* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
672 p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
673 if( p_stream->i_decoder_specific_info > 0 )
675 p_stream->p_decoder_specific_info =
676 malloc( p_stream->i_decoder_specific_info );
677 memcpy( p_stream->p_decoder_specific_info,
678 p_input->p_fmt->p_extra,
679 p_input->p_fmt->i_extra );
682 /* Create decoder specific info for subt */
683 if( p_stream->i_codec == VLC_FOURCC( 's', 'u','b', 't' ) )
687 p_stream->i_decoder_specific_info = 55;
688 p_stream->p_decoder_specific_info = p =
689 malloc( p_stream->i_decoder_specific_info );
691 p[0] = 0x10; /* textFormat, 0x10 for 3GPP TS 26.245 */
692 p[1] = 0x00; /* flags: 1b: associated video info flag
696 p[2] = 52; /* remaining size */
700 p[0] = p[1] = p[2] = p[3] = 0; p+=4; /* display flags */
701 *p++ = 0; /* horizontal justification (-1: left, 0 center, 1 right) */
702 *p++ = 1; /* vertical justification (-1: top, 0 center, 1 bottom) */
704 p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
705 *p++ = 0xff; /* background a */
707 p[0] = p[1] = 0; p += 2; /* text box top */
708 p[0] = p[1] = 0; p += 2; /* text box left */
709 p[0] = p[1] = 0; p += 2; /* text box bottom */
710 p[0] = p[1] = 0; p += 2; /* text box right */
712 p[0] = p[1] = 0; p += 2; /* start char */
713 p[0] = p[1] = 0; p += 2; /* end char */
714 p[0] = p[1] = 0; p += 2; /* default font id */
716 *p++ = 0; /* font style flags */
717 *p++ = 12; /* font size */
719 p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
720 *p++ = 0x00; /* foreground a */
722 p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
723 memcpy( p, "ftab", 4 ); p += 4;
724 *p++ = 0; *p++ = 1; /* entry count */
725 p[0] = p[1] = 0; p += 2; /* font id */
726 *p++ = 9; /* font name length */
727 memcpy( p, "Helvetica", 9 ); /* font name */
731 BufferChainInit( &p_stream->chain_pes );
732 p_stream->i_pes_dts = 0;
733 p_stream->i_pes_length = 0;
734 p_stream->i_pes_used = 0;
735 p_stream->b_key_frame = 0;
737 /* We only change PMT version (PAT isn't changed) */
738 p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
741 if( p_input->p_fmt->i_cat != SPU_ES &&
742 ( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
744 if( p_sys->p_pcr_input )
746 /* There was already a PCR stream, so clean context */
749 p_sys->i_pcr_pid = p_stream->i_pid;
750 p_sys->p_pcr_input = p_input;
752 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
758 /*****************************************************************************
759 * DelStream: called before a stream deletion
760 *****************************************************************************/
761 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
763 sout_mux_sys_t *p_sys = p_mux->p_sys;
764 ts_stream_t *p_stream;
767 p_stream = (ts_stream_t*)p_input->p_sys;
768 msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
770 if( p_sys->i_pcr_pid == p_stream->i_pid )
774 /* Find a new pcr stream (Prefer Video Stream) */
775 p_sys->i_pcr_pid = 0x1fff;
776 p_sys->p_pcr_input = NULL;
777 for( i = 0; i < p_mux->i_nb_inputs; i++ )
779 if( p_mux->pp_inputs[i] == p_input )
784 if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
787 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
788 p_sys->p_pcr_input= p_mux->pp_inputs[i];
791 else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
792 p_sys->i_pcr_pid == 0x1fff )
795 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
796 p_sys->p_pcr_input= p_mux->pp_inputs[i];
799 if( p_sys->p_pcr_input )
801 /* Empty TS buffer */
804 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
807 /* Empty all data in chain_pes */
808 BufferChainClean( p_mux->p_sout, &p_stream->chain_pes );
810 if( p_stream->p_decoder_specific_info )
812 free( p_stream->p_decoder_specific_info );
814 if( p_stream->i_stream_id == 0xfa ||
815 p_stream->i_stream_id == 0xfb ||
816 p_stream->i_stream_id == 0xfe )
818 p_sys->i_mpeg4_streams--;
821 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
824 int i_pid_video = val.i_int;
825 if ( i_pid_video == p_stream->i_pid )
827 p_sys->i_pid_video = i_pid_video;
828 msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
831 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
834 int i_pid_audio = val.i_int;
835 if ( i_pid_audio == p_stream->i_pid )
837 p_sys->i_pid_audio = i_pid_audio;
838 msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
843 /* We only change PMT version (PAT isn't changed) */
844 p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
849 /*****************************************************************************
850 * Mux: Call each time there is new data for at least one stream
851 *****************************************************************************
853 *****************************************************************************/
854 static int Mux( sout_mux_t *p_mux )
856 sout_mux_sys_t *p_sys = p_mux->p_sys;
857 ts_stream_t *p_pcr_stream;
859 if( p_sys->i_pcr_pid == 0x1fff )
861 msg_Dbg( p_mux, "waiting for PCR streams" );
865 p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
869 sout_buffer_chain_t chain_ts;
873 mtime_t i_pcr_length;
874 mtime_t i_shaping_delay;
877 if( p_pcr_stream->b_key_frame )
879 i_shaping_delay = p_pcr_stream->i_pes_length;
883 i_shaping_delay = p_sys->i_shaping_delay;
886 /* 1: get enough PES packet for all input */
889 vlc_bool_t b_ok = VLC_TRUE;
892 /* Accumulate enough data in the pcr stream (>i_shaping_delay) */
893 /* Accumulate enough data in all other stream ( >= length of pcr)*/
894 for( i = 0; i < p_mux->i_nb_inputs; i++ )
896 sout_input_t *p_input = p_mux->pp_inputs[i];
897 ts_stream_t *p_stream = (ts_stream_t*)p_input->p_sys;
898 int64_t i_spu_length = 0;
899 int64_t i_spu_dts = 0;
902 if( ( p_stream == p_pcr_stream &&
903 p_stream->i_pes_length < i_shaping_delay ) ||
904 p_stream->i_pes_dts + p_stream->i_pes_length <
905 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
908 if( p_input->p_fifo->i_depth <= 50 )
910 if( p_input->p_fmt->i_cat == AUDIO_ES ||
911 p_input->p_fmt->i_cat == VIDEO_ES )
913 /* We need more data */
916 else if( p_input->p_fifo->i_depth <= 0 )
918 /* spu, only one packet is needed */
924 p_data = block_FifoGet( p_input->p_fifo );
925 if( p_input->p_fmt->i_codec == VLC_FOURCC('s','u','b','t'))
927 i_spu_length = p_data->i_length;/* save info for SPU */
928 i_spu_dts = p_data->i_dts;
930 if( p_input->p_fifo->i_depth > 0 )
932 block_t *p_next = block_FifoShow( p_input->p_fifo );
934 p_data->i_length = p_next->i_dts - p_data->i_dts;
937 if( ( p_pcr_stream->i_pes_dts > 0 &&
938 p_data->i_dts - 2000000 > p_pcr_stream->i_pes_dts +
939 p_pcr_stream->i_pes_length ) ||
940 p_data->i_dts < p_stream->i_pes_dts ||
941 ( p_stream->i_pes_dts > 0 &&
942 p_input->p_fmt->i_cat != SPU_ES &&
943 p_data->i_dts - 2000000 > p_stream->i_pes_dts +
944 p_stream->i_pes_length ) )
946 msg_Warn( p_mux, "packet with too strange dts "
947 "(dts="I64Fd",old="I64Fd",pcr="I64Fd")",
948 p_data->i_dts, p_stream->i_pes_dts,
949 p_pcr_stream->i_pes_dts );
950 block_Release( p_data );
952 BufferChainClean( p_mux->p_sout,
953 &p_stream->chain_pes );
954 p_stream->i_pes_dts = 0;
955 p_stream->i_pes_used = 0;
956 p_stream->i_pes_length = 0;
958 BufferChainClean( p_mux->p_sout,
959 &p_pcr_stream->chain_pes );
960 p_pcr_stream->i_pes_dts = 0;
961 p_pcr_stream->i_pes_used = 0;
962 p_pcr_stream->i_pes_length = 0;
967 if( p_input->p_fmt->i_cat == SPU_ES )
970 p_data->i_length = 1000;
971 if( p_input->p_fmt->i_codec ==
972 VLC_FOURCC('s','u','b','t') )
975 p_data = block_Realloc( p_data, 2,
977 p_data->p_buffer[0] =
978 ( (p_data->i_buffer - 2) >> 8) & 0xff;
979 p_data->p_buffer[1] =
980 ( (p_data->i_buffer - 2) ) & 0xff;
982 /* remove trailling \0 if any */
983 if( p_data->i_buffer > 2 &&
984 p_data->p_buffer[p_data->i_buffer -1] ==
989 else if( p_data->i_length < 0 ||
990 p_data->i_length > 2000000 )
992 /* FIXME choose a better value, but anyway we
993 * should never have to do that */
994 p_data->i_length = 1000;
997 p_stream->i_pes_length += p_data->i_length;
998 if( p_stream->i_pes_dts == 0 )
1000 p_stream->i_pes_dts = p_data->i_dts;
1003 /* Convert to pes */
1004 if( p_stream->i_stream_id == 0xa0 &&
1005 p_data->i_pts <= 0 )
1007 /* XXX yes I know, it's awfull, but it's needed,
1008 * so don't remove it ... */
1009 p_data->i_pts = p_data->i_dts;
1011 E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
1012 p_stream->i_stream_id, 1 );
1014 BufferChainAppend( &p_stream->chain_pes, p_data );
1016 if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
1017 && (p_data->i_flags & BLOCK_FLAG_TYPE_I )
1018 && (p_stream->i_pes_length > 300000) )
1020 i_shaping_delay = p_stream->i_pes_length;
1021 p_stream->b_key_frame = 1;
1024 /* Append a empty sub (sub text only) */
1025 if( i_spu_length > 0 )
1027 block_t *p_spu = block_New( p_mux, 3 );
1029 p_spu->i_dts = p_spu->i_pts = i_spu_dts +
1031 p_spu->i_length = 1000;
1033 p_spu->p_buffer[0] = 0;
1034 p_spu->p_buffer[1] = 1;
1035 p_spu->p_buffer[2] = ' ';
1037 p_stream->i_pes_length += p_spu->i_length;
1038 E_( EStoPES )( p_mux->p_sout, &p_spu, p_spu,
1039 p_stream->i_stream_id, 1 );
1040 BufferChainAppend( &p_stream->chain_pes, p_spu );
1053 i_pcr_dts = p_pcr_stream->i_pes_dts;
1054 i_pcr_length = p_pcr_stream->i_pes_length;
1055 p_pcr_stream->b_key_frame = 0;
1057 /* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
1058 /* 2: calculate non accurate total size of muxed ts */
1060 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1062 ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1065 /* False for pcr stream but it will be enough to do PCR algo */
1066 for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
1067 p_pes = p_pes->p_next )
1069 int i_size = p_pes->i_buffer;
1070 if( p_pes->i_dts + p_pes->i_length >
1071 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1073 mtime_t i_frag = p_pcr_stream->i_pes_dts +
1074 p_pcr_stream->i_pes_length - p_pes->i_dts;
1080 i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
1082 i_packet_count += ( i_size + 183 ) / 184;
1085 /* add overhead for PCR (not really exact) */
1086 i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
1089 /* 3: mux PES into TS */
1090 BufferChainInit( &chain_ts );
1091 /* append PAT/PMT -> FIXME with big pcr delay it won't have enough pat/pmt */
1092 GetPAT( p_mux, &chain_ts);
1093 GetPMT( p_mux, &chain_ts );
1095 i_packet_count += chain_ts.i_depth;
1096 /* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
1102 ts_stream_t *p_stream;
1103 sout_input_t *p_input;
1107 /* Select stream (lowest dts) */
1108 for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
1110 p_input = p_mux->pp_inputs[i];
1111 p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1113 if( p_stream->i_pes_dts == 0 )
1118 if( i_stream == -1 ||
1119 p_stream->i_pes_dts < i_dts )
1122 i_dts = p_stream->i_pes_dts;
1125 if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
1129 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1131 /* do we need to issue pcr */
1133 if( p_stream == p_pcr_stream &&
1134 i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
1135 p_sys->i_pcr + p_sys->i_pcr_delay )
1138 p_sys->i_pcr = i_pcr_dts + i_packet_pos *
1139 i_pcr_length / i_packet_count;
1142 /* Build the TS packet */
1143 p_ts = TSNew( p_mux, p_stream, b_pcr );
1144 if( p_sys->csa != NULL &&
1145 (p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) )
1147 p_ts->i_flags |= SOUT_BUFFER_FLAGS_PRIVATE_CSA;
1152 BufferChainAppend( &chain_ts, p_ts );
1155 /* 4: date and send */
1156 TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
1160 static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1161 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1163 sout_mux_sys_t *p_sys = p_mux->p_sys;
1164 sout_buffer_chain_t new_chain;
1165 int i_packet_count = p_chain_ts->i_depth;
1168 BufferChainInit( &new_chain );
1170 if ( i_pcr_length <= 0 )
1172 i_pcr_length = i_packet_count;
1175 for( i = 0; i < i_packet_count; i++ )
1177 block_t *p_ts = BufferChainGet( p_chain_ts );
1178 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1180 BufferChainAppend( &new_chain, p_ts );
1183 p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
1185 mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
1186 mtime_t i_cut_dts = p_ts->i_dts;
1188 p_ts = BufferChainPeek( p_chain_ts );
1190 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1191 while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
1193 p_ts = BufferChainGet( p_chain_ts );
1194 i_max_diff = i_new_dts - p_ts->i_dts;
1195 i_cut_dts = p_ts->i_dts;
1196 BufferChainAppend( &new_chain, p_ts );
1198 p_ts = BufferChainPeek( p_chain_ts );
1200 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1202 msg_Dbg( p_mux, "adjusting rate at "I64Fd"/"I64Fd" (%d/%d)",
1203 i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
1204 p_chain_ts->i_depth );
1205 if ( new_chain.i_depth )
1206 TSDate( p_mux, &new_chain,
1207 i_cut_dts - i_pcr_dts,
1209 if ( p_chain_ts->i_depth )
1211 p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
1217 if ( new_chain.i_depth )
1218 TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
1221 static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1222 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1224 sout_mux_sys_t *p_sys = p_mux->p_sys;
1225 int i_packet_count = p_chain_ts->i_depth;
1228 if ( i_pcr_length / 1000 > 0 )
1230 int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
1231 / (uint64_t)(i_pcr_length / 1000);
1232 if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
1234 msg_Warn( p_mux, "max bitrate exceeded at "I64Fd
1235 " (%d bi/s for %d pkt in "I64Fd" us)",
1236 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1237 i_bitrate, i_packet_count, i_pcr_length);
1242 msg_Dbg( p_mux, "starting at "I64Fd
1243 " (%d bi/s for %d packets in "I64Fd" us)",
1244 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1245 i_bitrate, i_packet_count, i_pcr_length);
1251 /* This shouldn't happen, but happens in some rare heavy load
1252 * and packet losses conditions. */
1253 i_pcr_length = i_packet_count;
1256 /* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
1257 for( i = 0; i < i_packet_count; i++ )
1259 block_t *p_ts = BufferChainGet( p_chain_ts );
1260 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1262 p_ts->i_dts = i_new_dts;
1263 p_ts->i_length = i_pcr_length / i_packet_count;
1265 if( p_ts->i_flags & SOUT_BUFFER_FLAGS_PRIVATE_PCR )
1267 /* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
1268 TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
1270 if( p_ts->i_flags & SOUT_BUFFER_FLAGS_PRIVATE_CSA )
1272 csa_Encrypt( p_sys->csa, p_ts->p_buffer, 0 );
1276 p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
1278 sout_AccessOutWrite( p_mux->p_access, p_ts );
1282 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
1285 block_t *p_pes = p_stream->chain_pes.p_first;
1288 vlc_bool_t b_new_pes = VLC_FALSE;
1289 vlc_bool_t b_adaptation_field = VLC_FALSE;
1291 int i_payload_max = 184 - ( b_pcr ? 8 : 0 );
1294 if( p_stream->i_pes_used <= 0 )
1296 b_new_pes = VLC_TRUE;
1298 i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
1301 if( b_pcr || i_payload < i_payload_max )
1303 b_adaptation_field = VLC_TRUE;
1306 p_ts = block_New( p_mux, 188 );
1307 p_ts->i_dts = p_pes->i_dts;
1309 p_ts->p_buffer[0] = 0x47;
1310 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
1311 ( ( p_stream->i_pid >> 8 )&0x1f );
1312 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1313 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
1314 p_stream->i_continuity_counter;
1316 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1318 if( b_adaptation_field )
1324 int i_stuffing = i_payload_max - i_payload;
1326 p_ts->i_flags |= SOUT_BUFFER_FLAGS_PRIVATE_PCR;
1328 p_ts->p_buffer[4] = 7 + i_stuffing;
1329 p_ts->p_buffer[5] = 0x10; /* flags */
1330 p_ts->p_buffer[6] = ( 0 )&0xff;
1331 p_ts->p_buffer[7] = ( 0 )&0xff;
1332 p_ts->p_buffer[8] = ( 0 )&0xff;
1333 p_ts->p_buffer[9] = ( 0 )&0xff;
1334 p_ts->p_buffer[10]= ( 0 )&0x80;
1335 p_ts->p_buffer[11]= 0;
1337 for( i = 12; i < 12 + i_stuffing; i++ )
1339 p_ts->p_buffer[i] = 0xff;
1344 int i_stuffing = i_payload_max - i_payload;
1346 p_ts->p_buffer[4] = i_stuffing - 1;
1347 if( i_stuffing > 1 )
1349 p_ts->p_buffer[5] = 0x00;
1350 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1352 p_ts->p_buffer[i] = 0xff;
1359 memcpy( &p_ts->p_buffer[188 - i_payload],
1360 &p_pes->p_buffer[p_stream->i_pes_used], i_payload );
1362 p_stream->i_pes_used += i_payload;
1363 p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
1364 p_stream->i_pes_used / p_pes->i_buffer;
1365 p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
1367 if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
1369 p_pes = BufferChainGet( &p_stream->chain_pes );
1370 block_Release( p_pes );
1372 p_pes = p_stream->chain_pes.p_first;
1375 p_stream->i_pes_dts = p_pes->i_dts;
1376 p_stream->i_pes_length = 0;
1379 p_stream->i_pes_length += p_pes->i_length;
1381 p_pes = p_pes->p_next;
1386 p_stream->i_pes_dts = 0;
1387 p_stream->i_pes_length = 0;
1389 p_stream->i_pes_used = 0;
1396 static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
1398 mtime_t i_pcr = 9 * i_dts / 100;
1400 p_ts->p_buffer[6] = ( i_pcr >> 25 )&0xff;
1401 p_ts->p_buffer[7] = ( i_pcr >> 17 )&0xff;
1402 p_ts->p_buffer[8] = ( i_pcr >> 9 )&0xff;
1403 p_ts->p_buffer[9] = ( i_pcr >> 1 )&0xff;
1404 p_ts->p_buffer[10]|= ( i_pcr << 7 )&0x80;
1408 static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
1409 mtime_t i_length, int i_bitrate_min,
1412 sout_mux_sys_t *p_sys = p_mux->p_sys;
1413 sout_buffer_chain_t s = *c;
1416 int i_packets_min = 0;
1417 int i_packets_max = 0;
1424 i_packets = c->i_depth;
1425 i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000 + 187 ) / 188;
1426 i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000 + 187 ) / 188;
1428 if( i_packets < i_packets_min && i_packets_min > 0 )
1431 int i_div = ( i_packets_min - i_packets ) / i_packets;
1432 int i_mod = ( i_packets_min - i_packets ) % i_packets;
1435 /* We need to pad with null packets (pid=0x1fff)
1436 * We try to melt null packets with true packets */
1438 "packets=%d but min=%d -> adding %d packets of padding",
1439 i_packets, i_packets_min, i_packets_min - i_packets );
1441 BufferChainInit( c );
1442 while( ( p_pk = BufferChainGet( &s ) ) )
1446 BufferChainAppend( c, p_pk );
1448 i_null = i_div + ( i_rest + i_mod ) / i_packets;
1450 for( i = 0; i < i_null; i++ )
1454 p_null = sout_BufferNew( p_mux->p_sout, 188 );
1455 p_null->p_buffer[0] = 0x47;
1456 p_null->p_buffer[1] = 0x1f;
1457 p_null->p_buffer[2] = 0xff;
1458 p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
1459 memset( &p_null->p_buffer[4], 0, 184 );
1460 p_sys->i_null_continuity_counter =
1461 ( p_sys->i_null_continuity_counter + 1 ) % 16;
1463 BufferChainAppend( c, p_null );
1466 i_rest = ( i_rest + i_mod ) % i_packets;
1469 else if( i_packets > i_packets_max && i_packets_max > 0 )
1474 /* Arg, we need to drop packets, I don't do something clever (like
1475 * dropping complete pid, b frames, ... ), I just get the right amount
1476 * of packets and discard the others */
1478 "packets=%d but max=%d -> removing %d packets -> stream broken",
1479 i_packets, i_packets_max, i_packets - i_packets_max );
1481 BufferChainInit( c );
1482 for( i = 0; i < i_packets_max; i++ )
1484 BufferChainAppend( c, BufferChainGet( &s ) );
1487 while( ( p_pk = BufferChainGet( &s ) ) )
1489 sout_BufferDelete( p_mux->p_sout, p_pk );
1495 static void PEStoTS( sout_instance_t *p_sout,
1496 sout_buffer_chain_t *c, block_t *p_pes,
1497 ts_stream_t *p_stream )
1503 /* get PES total size */
1504 i_size = p_pes->i_buffer;
1505 p_data = p_pes->p_buffer;
1507 b_new_pes = VLC_TRUE;
1511 int b_adaptation_field;
1515 p_ts = block_New( p_sout, 188 );
1518 * 1b transport_error_indicator
1519 * 1b payload_unit_start
1520 * 1b transport_priority
1522 * 2b transport_scrambling_control
1523 * 2b if adaptation_field 0x03 else 0x01
1524 * 4b continuity_counter
1527 i_copy = __MIN( i_size, 184 );
1528 b_adaptation_field = i_size < 184 ? VLC_TRUE : VLC_FALSE;
1530 p_ts->p_buffer[0] = 0x47;
1531 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
1532 ( ( p_stream->i_pid >> 8 )&0x1f );
1533 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1534 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
1535 p_stream->i_continuity_counter;
1537 b_new_pes = VLC_FALSE;
1538 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1540 if( b_adaptation_field )
1542 int i_stuffing = 184 - i_copy;
1545 p_ts->p_buffer[4] = i_stuffing - 1;
1546 if( i_stuffing > 1 )
1548 p_ts->p_buffer[5] = 0x00;
1549 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1551 p_ts->p_buffer[i] = 0xff;
1556 memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
1560 BufferChainAppend( c, p_ts );
1564 block_t *p_next = p_pes->p_next;
1566 p_pes->p_next = NULL;
1567 block_Release( p_pes );
1568 if( p_next == NULL )
1572 b_new_pes = VLC_TRUE;
1574 i_size = p_pes->i_buffer;
1575 p_data = p_pes->p_buffer;
1582 static block_t *WritePSISection( sout_instance_t *p_sout,
1583 dvbpsi_psi_section_t* p_section )
1585 block_t *p_psi, *p_first = NULL;
1592 i_size = (uint32_t)( p_section->p_payload_end - p_section->p_data )+
1593 ( p_section->b_syntax_indicator ? 4 : 0 );
1595 p_psi = block_New( p_sout, i_size + 1 );
1598 p_psi->i_length = 0;
1599 p_psi->i_buffer = i_size + 1;
1601 p_psi->p_buffer[0] = 0; // pointer
1602 memcpy( p_psi->p_buffer + 1,
1606 block_ChainAppend( &p_first, p_psi );
1608 p_section = p_section->p_next;
1614 static void GetPAT( sout_mux_t *p_mux,
1615 sout_buffer_chain_t *c )
1617 sout_mux_sys_t *p_sys = p_mux->p_sys;
1620 dvbpsi_psi_section_t *p_section;
1622 dvbpsi_InitPAT( &pat,
1624 p_sys->i_pat_version_number,
1625 1 ); // b_current_next
1626 /* add all program (only one) */
1627 dvbpsi_PATAddProgram( &pat,
1629 p_sys->pmt.i_pid ); // i_pid
1631 p_section = dvbpsi_GenPATSections( &pat,
1632 0 ); // max program per section
1634 p_pat = WritePSISection( p_mux->p_sout, p_section );
1636 PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
1638 dvbpsi_DeletePSISections( p_section );
1639 dvbpsi_EmptyPAT( &pat );
1642 static uint32_t GetDescriptorLength24b( int i_length )
1644 uint32_t i_l1, i_l2, i_l3;
1646 i_l1 = i_length&0x7f;
1647 i_l2 = ( i_length >> 7 )&0x7f;
1648 i_l3 = ( i_length >> 14 )&0x7f;
1650 return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
1653 static void GetPMT( sout_mux_t *p_mux,
1654 sout_buffer_chain_t *c )
1656 sout_mux_sys_t *p_sys = p_mux->p_sys;
1660 dvbpsi_pmt_es_t *p_es;
1661 dvbpsi_psi_section_t *p_section;
1665 dvbpsi_InitPMT( &pmt,
1666 0x01, // program number
1667 p_sys->i_pmt_version_number,
1668 1, // b_current_next
1671 if( p_sys->i_mpeg4_streams > 0 )
1675 bits_buffer_t bits_fix_IOD;
1677 /* Make valgrind happy : it works at byte level not bit one so
1678 * bit_write confuse it (but DON'T CHANGE the way that bit_write is
1679 * working (needed when fixing some bits) */
1680 memset( iod, 0, 4096 );
1682 bits_initwrite( &bits, 4096, iod );
1684 bits_write( &bits, 8, 0x01 );
1685 // InitialObjectDescriptor
1686 bits_align( &bits );
1687 bits_write( &bits, 8, 0x02 ); // tag
1688 bits_fix_IOD = bits; // save states to fix length later
1689 bits_write( &bits, 24,
1690 GetDescriptorLength24b( 0 ) ); // variable length (fixed later)
1691 bits_write( &bits, 10, 0x01 ); // ObjectDescriptorID
1692 bits_write( &bits, 1, 0x00 ); // URL Flag
1693 bits_write( &bits, 1, 0x00 ); // includeInlineProfileLevelFlag
1694 bits_write( &bits, 4, 0x0f ); // reserved
1695 bits_write( &bits, 8, 0xff ); // ODProfile (no ODcapability )
1696 bits_write( &bits, 8, 0xff ); // sceneProfile
1697 bits_write( &bits, 8, 0xfe ); // audioProfile (unspecified)
1698 bits_write( &bits, 8, 0xfe ); // visualProfile( // )
1699 bits_write( &bits, 8, 0xff ); // graphicProfile (no )
1700 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1702 ts_stream_t *p_stream;
1703 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1705 if( p_stream->i_stream_id == 0xfa ||
1706 p_stream->i_stream_id == 0xfb ||
1707 p_stream->i_stream_id == 0xfe )
1709 bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
1711 bits_align( &bits );
1712 bits_write( &bits, 8, 0x03 ); // ES_DescrTag
1713 bits_fix_ESDescr = bits;
1714 bits_write( &bits, 24,
1715 GetDescriptorLength24b( 0 ) ); // variable size
1716 bits_write( &bits, 16, p_stream->i_es_id );
1717 bits_write( &bits, 1, 0x00 ); // streamDependency
1718 bits_write( &bits, 1, 0x00 ); // URL Flag
1719 bits_write( &bits, 1, 0x00 ); // OCRStreamFlag
1720 bits_write( &bits, 5, 0x1f ); // streamPriority
1722 // DecoderConfigDesciptor
1723 bits_align( &bits );
1724 bits_write( &bits, 8, 0x04 ); // DecoderConfigDescrTag
1725 bits_fix_Decoder = bits;
1726 bits_write( &bits, 24, GetDescriptorLength24b( 0 ) );
1727 if( p_stream->i_stream_type == 0x10 )
1729 bits_write( &bits, 8, 0x20 ); // Visual 14496-2
1730 bits_write( &bits, 6, 0x04 ); // VisualStream
1732 else if( p_stream->i_stream_type == 0x11 )
1734 bits_write( &bits, 8, 0x40 ); // Audio 14496-3
1735 bits_write( &bits, 6, 0x05 ); // AudioStream
1737 else if( p_stream->i_stream_type == 0x12 &&
1738 p_stream->i_codec == VLC_FOURCC('s','u','b','t') )
1740 bits_write( &bits, 8, 0x0B ); // Text Stream
1741 bits_write( &bits, 6, 0x04 ); // VisualStream
1745 bits_write( &bits, 8, 0x00 );
1746 bits_write( &bits, 6, 0x00 );
1748 msg_Err( p_mux->p_sout,"Unsupported stream_type => "
1751 bits_write( &bits, 1, 0x00 ); // UpStream
1752 bits_write( &bits, 1, 0x01 ); // reserved
1753 bits_write( &bits, 24, 1024 * 1024 ); // bufferSizeDB
1754 bits_write( &bits, 32, 0x7fffffff ); // maxBitrate
1755 bits_write( &bits, 32, 0 ); // avgBitrate
1757 if( p_stream->i_decoder_specific_info > 0 )
1760 // DecoderSpecificInfo
1761 bits_align( &bits );
1762 bits_write( &bits, 8, 0x05 ); // tag
1763 bits_write( &bits, 24, GetDescriptorLength24b(
1764 p_stream->i_decoder_specific_info ) );
1765 for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
1767 bits_write( &bits, 8,
1768 ((uint8_t*)p_stream->p_decoder_specific_info)[i] );
1771 /* fix Decoder length */
1772 bits_write( &bits_fix_Decoder, 24,
1773 GetDescriptorLength24b( bits.i_data -
1774 bits_fix_Decoder.i_data - 3 ) );
1776 /* SLConfigDescriptor : predifined (0x01) */
1777 bits_align( &bits );
1778 bits_write( &bits, 8, 0x06 ); // tag
1779 bits_write( &bits, 24, GetDescriptorLength24b( 8 ) );
1780 bits_write( &bits, 8, 0x01 ); // predefined
1781 bits_write( &bits, 1, 0 ); // durationFlag
1782 bits_write( &bits, 32, 0 ); // OCRResolution
1783 bits_write( &bits, 8, 0 ); // OCRLength
1784 bits_write( &bits, 8, 0 ); // InstantBitrateLength
1785 bits_align( &bits );
1787 /* fix ESDescr length */
1788 bits_write( &bits_fix_ESDescr, 24,
1789 GetDescriptorLength24b( bits.i_data -
1790 bits_fix_ESDescr.i_data - 3 ) );
1793 bits_align( &bits );
1794 /* fix IOD length */
1795 bits_write( &bits_fix_IOD, 24,
1796 GetDescriptorLength24b( bits.i_data -
1797 bits_fix_IOD.i_data - 3 ) );
1798 dvbpsi_PMTAddDescriptor( &pmt, 0x1d, bits.i_data, bits.p_data );
1801 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1803 ts_stream_t *p_stream;
1805 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1807 p_es = dvbpsi_PMTAddES( &pmt, p_stream->i_stream_type,
1809 if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
1814 es_id[0] = (p_stream->i_es_id >> 8)&0xff;
1815 es_id[1] = (p_stream->i_es_id)&0xff;
1816 dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
1818 else if( p_stream->i_stream_type == 0xa0 )
1821 int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
1823 /* private DIV3 descripor */
1824 memcpy( &data[0], &p_stream->i_bih_codec, 4 );
1825 data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
1826 data[5] = ( p_stream->i_bih_width )&0xff;
1827 data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
1828 data[7] = ( p_stream->i_bih_height )&0xff;
1829 data[8] = ( i_extra >> 8 )&0xff;
1830 data[9] = ( i_extra )&0xff;
1833 memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
1836 /* 0xa0 is private */
1837 dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
1839 else if( p_stream->i_stream_type == 0x81 )
1841 uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
1843 /* "registration" descriptor : "AC-3" */
1844 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
1846 else if( p_stream->i_codec == VLC_FOURCC('d','t','s',' ') )
1848 /* DTS registration descriptor (ETSI TS 101 154 Annex F) */
1850 /* DTS format identifier, frame size 1024 - FIXME */
1851 uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
1852 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
1854 else if( p_stream->i_codec == VLC_FOURCC('d','v','b','s') )
1857 dvbpsi_subtitling_dr_t descr;
1858 dvbpsi_subtitle_t sub;
1859 dvbpsi_descriptor_t *p_descr;
1861 memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
1862 sub.i_subtitling_type = 0;
1863 sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
1864 sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
1866 descr.i_subtitles_number = 1;
1867 descr.p_subtitle[0] = sub;
1869 p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
1870 /* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
1871 dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
1872 p_descr->i_length, p_descr->p_data );
1876 if( p_stream->lang[0] != 0 )
1880 /* I construct the content myself, way faster than looking at
1881 * over complicated/mind broken libdvbpsi way */
1882 data[0] = p_stream->lang[0];
1883 data[1] = p_stream->lang[1];
1884 data[2] = p_stream->lang[2];
1885 data[3] = 0x00; /* audio type: 0x00 undefined */
1887 dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4, data );
1891 p_section = dvbpsi_GenPMTSections( &pmt );
1893 p_pmt = WritePSISection( p_mux->p_sout, p_section );
1895 PEStoTS( p_mux->p_sout, c, p_pmt, &p_sys->pmt );
1897 dvbpsi_DeletePSISections( p_section );
1898 dvbpsi_EmptyPMT( &pmt );