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.")
82 #define SPUPID_TEXT N_("SPU PID")
83 #define SPUPID_LONGTEXT N_("Assigns a fixed PID to the SPU.")
84 #define PMTPID_TEXT N_("PMT PID")
85 #define PMTPID_LONGTEXT N_("Assings a fixed PID to the PMT")
86 #define TSID_TEXT N_("TS ID")
87 #define TSID_LONGTEXT N_("Assigns a fixed Transport Stream ID.")
89 #define PID_TEXT N_("Set PID to id of ES")
90 #define PID_LONGTEXT N_("set PID to id of es")
92 #define SHAPING_TEXT N_("Shaping delay (ms)")
93 #define SHAPING_LONGTEXT N_("If enabled, the TS muxer will cut the " \
94 "stream in slices of the given duration, and ensure a constant bitrate " \
95 "between the two boundaries. This avoids having huge bitrate peaks for " \
96 "reference frames, in particular.")
97 #define KEYF_TEXT N_("Use keyframes")
98 #define KEYF_LONGTEXT N_("If enabled, and shaping is specified, " \
99 "the TS muxer will place the boundaries at the end of I pictures. In " \
100 "that case, the shaping duration given by the user is a worse case " \
101 "used when no reference frame is available. This enhances the efficiency " \
102 "of the shaping algorithm, since I frames are usually the biggest " \
103 "frames in the stream.")
105 #define PCR_TEXT N_("PCR delay (ms)")
106 #define PCR_LONGTEXT N_("This option allows you to set at which interval " \
107 "PCRs (Program Clock Reference) will be sent. " \
108 "This value should be below 100ms. (default is 30)")
110 #define BMIN_TEXT N_( "Minimum B (deprecated)")
111 #define BMIN_LONGTEXT N_( "This setting is deprecated and not used anymore" )
113 #define BMAX_TEXT N_( "Maximum B (deprecated)")
114 #define BMAX_LONGTEXT N_( "This setting is deprecated and not used anymore")
116 #define DTS_TEXT N_("DTS delay (ms)")
117 #define DTS_LONGTEXT N_("This option will delay the DTS (decoding time " \
118 "stamps) and PTS (presentation timestamps) of the data in the " \
119 "stream, compared to the PCRs. This allows for some buffering inside " \
120 "the client decoder.")
122 #define ACRYPT_TEXT N_("Crypt audio")
123 #define ACRYPT_LONGTEXT N_("Crypt audio using CSA")
125 #define CK_TEXT N_("CSA Key")
126 #define CK_LONGTEXT N_("Defines the CSA encryption key. This must be a " \
127 "16 char string (8 hexadecimal bytes).")
129 #define SOUT_CFG_PREFIX "sout-ts-"
132 set_description( _("TS muxer (libdvbpsi)") );
133 set_shortname( "MPEG-TS");
134 set_category( CAT_SOUT );
135 set_subcategory( SUBCAT_SOUT_MUX );
136 set_capability( "sout mux", 120 );
137 add_shortcut( "ts" );
139 add_integer( SOUT_CFG_PREFIX "pid-video", 0, NULL,VPID_TEXT, VPID_LONGTEXT,
141 add_integer( SOUT_CFG_PREFIX "pid-audio", 0, NULL, APID_TEXT,
142 APID_LONGTEXT, VLC_TRUE );
143 add_integer( SOUT_CFG_PREFIX "pid-spu", 0, NULL, SPUPID_TEXT,
144 SPUPID_LONGTEXT, VLC_TRUE );
145 add_integer( SOUT_CFG_PREFIX "pid-pmt", 0, NULL, PMTPID_TEXT,
146 PMTPID_LONGTEXT, VLC_TRUE );
147 add_integer( SOUT_CFG_PREFIX "tsid", 0, NULL, TSID_TEXT,
148 TSID_LONGTEXT, VLC_TRUE );
149 add_bool( SOUT_CFG_PREFIX "es-id-pid", 0, NULL, PID_TEXT, PID_LONGTEXT,
152 add_integer( SOUT_CFG_PREFIX "shaping", 200, NULL,SHAPING_TEXT,
153 SHAPING_LONGTEXT, VLC_TRUE );
154 add_bool( SOUT_CFG_PREFIX "use-key-frames", VLC_FALSE, NULL, KEYF_TEXT,
155 KEYF_LONGTEXT, VLC_TRUE );
157 add_integer( SOUT_CFG_PREFIX "pcr", 30, NULL, PCR_TEXT, PCR_LONGTEXT,
159 add_integer( SOUT_CFG_PREFIX "bmin", 0, NULL, BMIN_TEXT, BMIN_LONGTEXT,
161 add_integer( SOUT_CFG_PREFIX "bmax", 0, NULL, BMAX_TEXT, BMAX_LONGTEXT,
163 add_integer( SOUT_CFG_PREFIX "dts-delay", 200, NULL, DTS_TEXT,
164 DTS_LONGTEXT, VLC_TRUE );
166 add_bool( SOUT_CFG_PREFIX "crypt-audio", VLC_TRUE, NULL, ACRYPT_TEXT,
167 ACRYPT_LONGTEXT, VLC_TRUE );
169 add_string( SOUT_CFG_PREFIX "csa-ck", NULL, NULL, CK_TEXT, CK_LONGTEXT,
172 set_callbacks( Open, Close );
175 /*****************************************************************************
176 * Local data structures
177 *****************************************************************************/
178 static const char *ppsz_sout_options[] = {
179 "pid-video", "pid-audio", "pid-spu", "pid-pmt", "tsid", "es-id-pid",
180 "shaping", "pcr", "bmin", "bmax", "use-key-frames", "dts-delay",
181 "csa-ck", "crypt-audio",
190 } sout_buffer_chain_t;
192 static inline void BufferChainInit ( sout_buffer_chain_t *c )
196 c->pp_last = &c->p_first;
198 static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
208 c->pp_last = &b->p_next;
210 static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
212 block_t *b = c->p_first;
217 c->p_first = b->p_next;
219 if( c->p_first == NULL )
221 c->pp_last = &c->p_first;
228 static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
230 block_t *b = c->p_first;
234 static inline void BufferChainClean( sout_instance_t *p_sout,
235 sout_buffer_chain_t *c )
239 while( ( b = BufferChainGet( c ) ) )
243 BufferChainInit( c );
246 typedef struct ts_stream_t
249 vlc_fourcc_t i_codec;
253 int i_continuity_counter;
255 /* to be used for carriege of DIV3 */
256 vlc_fourcc_t i_bih_codec;
257 int i_bih_width, i_bih_height;
259 /* Specific to mpeg4 in mpeg2ts */
262 int i_decoder_specific_info;
263 uint8_t *p_decoder_specific_info;
265 /* language is iso639-2T */
268 sout_buffer_chain_t chain_pes;
270 mtime_t i_pes_length;
272 vlc_bool_t b_key_frame;
276 struct sout_mux_sys_t
279 sout_input_t *p_pcr_input;
284 vlc_bool_t b_es_id_pid;
288 int i_pid_free; // first usable pid
291 int i_pat_version_number;
294 int i_pmt_version_number;
295 ts_stream_t pmt; // Up to now only one program
299 int i_null_continuity_counter; /* Needed ? */
301 /* for TS building */
302 int64_t i_bitrate_min;
303 int64_t i_bitrate_max;
305 int64_t i_shaping_delay;
310 vlc_bool_t b_use_key_frames;
312 mtime_t i_pcr; /* last PCR emited */
315 vlc_bool_t b_crypt_audio;
319 /* Reserve a pid and return it */
320 static int AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
323 if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
325 i_pid = p_sys->i_pid_video;
326 p_sys->i_pid_video = 0;
328 else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
330 i_pid = p_sys->i_pid_audio;
331 p_sys->i_pid_audio = 0;
333 else if ( i_cat == SPU_ES && p_sys->i_pid_spu )
335 i_pid = p_sys->i_pid_spu;
336 p_sys->i_pid_spu = 0;
340 i_pid = ++p_sys->i_pid_free;
345 /*****************************************************************************
347 *****************************************************************************/
348 static int Control ( sout_mux_t *, int, va_list );
349 static int AddStream( sout_mux_t *, sout_input_t * );
350 static int DelStream( sout_mux_t *, sout_input_t * );
351 static int Mux ( sout_mux_t * );
353 static void TSSchedule ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
354 mtime_t i_pcr_length, mtime_t i_pcr_dts );
355 static void TSDate ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
356 mtime_t i_pcr_length, mtime_t i_pcr_dts );
357 static void GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
358 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
360 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, vlc_bool_t b_pcr );
361 static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
363 static void PEStoTS ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
365 /*****************************************************************************
367 *****************************************************************************/
368 static int Open( vlc_object_t *p_this )
370 sout_mux_t *p_mux =(sout_mux_t*)p_this;
371 sout_mux_sys_t *p_sys;
374 msg_Dbg( p_mux, "Open" );
375 sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
377 p_sys = malloc( sizeof( sout_mux_sys_t ) );
379 p_mux->pf_control = Control;
380 p_mux->pf_addstream = AddStream;
381 p_mux->pf_delstream = DelStream;
383 p_mux->p_sys = p_sys;
385 srand( (uint32_t)mdate() );
387 p_sys->i_audio_bound = 0;
388 p_sys->i_video_bound = 0;
390 p_sys->i_pat_version_number = rand() % 32;
391 p_sys->pat.i_pid = 0;
392 p_sys->pat.i_continuity_counter = 0;
394 var_Get( p_mux, SOUT_CFG_PREFIX "tsid", &val );
396 p_sys->i_tsid = val.i_int;
398 p_sys->i_tsid = rand() % 65536;
399 p_sys->i_pmt_version_number = rand() % 32;
400 p_sys->pmt.i_continuity_counter = 0;
402 var_Get( p_mux, SOUT_CFG_PREFIX "pid-pmt", &val );
405 p_sys->pmt.i_pid = val.i_int;
409 p_sys->pmt.i_pid = 0x42;
412 p_sys->i_pid_free = p_sys->pmt.i_pid + 1;
414 var_Get( p_mux, SOUT_CFG_PREFIX "es-id-pid", &val );
415 p_sys->b_es_id_pid = val.b_bool;
417 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
418 p_sys->i_pid_video = val.i_int;
419 if ( p_sys->i_pid_video > p_sys->i_pid_free )
421 p_sys->i_pid_free = p_sys->i_pid_video + 1;
424 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
425 p_sys->i_pid_audio = val.i_int;
426 if ( p_sys->i_pid_audio > p_sys->i_pid_free )
428 p_sys->i_pid_free = p_sys->i_pid_audio + 1;
431 var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
432 p_sys->i_pid_spu = val.i_int;
433 if ( p_sys->i_pid_spu > p_sys->i_pid_free )
435 p_sys->i_pid_free = p_sys->i_pid_spu + 1;
438 p_sys->i_pcr_pid = 0x1fff;
439 p_sys->p_pcr_input = NULL;
441 p_sys->i_mpeg4_streams = 0;
443 p_sys->i_null_continuity_counter = 0;
445 /* Allow to create constrained stream */
446 var_Get( p_mux, SOUT_CFG_PREFIX "bmin", &val );
447 p_sys->i_bitrate_min = val.i_int;
449 var_Get( p_mux, SOUT_CFG_PREFIX "bmax", &val );
450 p_sys->i_bitrate_max = val.i_int;
452 if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
453 p_sys->i_bitrate_min > p_sys->i_bitrate_max )
455 msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
456 "disabling bitrate control" );
457 p_sys->i_bitrate_min = 0;
458 p_sys->i_bitrate_max = 0;
460 if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
462 msg_Err( p_mux, "bmin and bmax no more supported "
463 "(if you need them report it)" );
466 var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
467 p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
468 if( p_sys->i_shaping_delay <= 0 )
471 "invalid shaping ("I64Fd"ms) resetting to 200ms",
472 p_sys->i_shaping_delay / 1000 );
473 p_sys->i_shaping_delay = 200000;
476 var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
477 p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
478 if( p_sys->i_pcr_delay <= 0 ||
479 p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
482 "invalid pcr delay ("I64Fd"ms) resetting to 30ms",
483 p_sys->i_pcr_delay / 1000 );
484 p_sys->i_pcr_delay = 30000;
487 var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
488 p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
490 msg_Dbg( p_mux, "shaping="I64Fd" pcr="I64Fd" dts_delay="I64Fd,
491 p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
493 var_Get( p_mux, SOUT_CFG_PREFIX "use-key-frames", &val );
494 p_sys->b_use_key_frames = val.b_bool;
496 /* for TS generation */
500 var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
503 char *psz = val.psz_string;
506 if( psz[0] == '0' && ( psz[1] == 'x' || psz[1] == 'X' ) )
510 if( strlen( psz ) != 16 )
512 msg_Dbg( p_mux, "invalid csa ck (it must be 16 chars long)" );
516 uint64_t i_ck = strtoull( psz, NULL, 16 );
520 for( i = 0; i < 8; i++ )
522 ck[i] = ( i_ck >> ( 56 - 8*i) )&0xff;
525 msg_Dbg( p_mux, "using CSA scrambling with ck=%x:%x:%x:%x:%x:%x:%x:%x",
526 ck[0], ck[1], ck[2], ck[3], ck[4], ck[5], ck[6], ck[7] );
528 p_sys->csa = csa_New();
529 csa_SetCW( p_sys->csa, ck, ck );
532 if( val.psz_string ) free( val.psz_string );
534 var_Get( p_mux, SOUT_CFG_PREFIX "crypt-audio", &val );
535 p_sys->b_crypt_audio = val.b_bool;
540 /*****************************************************************************
542 *****************************************************************************/
543 static void Close( vlc_object_t * p_this )
545 sout_mux_t *p_mux = (sout_mux_t*)p_this;
546 sout_mux_sys_t *p_sys = p_mux->p_sys;
548 msg_Dbg( p_mux, "Close" );
551 csa_Delete( p_sys->csa );
557 /*****************************************************************************
559 *****************************************************************************/
560 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
567 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
568 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
572 case MUX_GET_ADD_STREAM_WAIT:
573 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
574 *pb_bool = VLC_FALSE;
578 ppsz = (char**)va_arg( args, char ** );
579 *ppsz = strdup( "video/mpeg" ); /* FIXME not sure */
587 /*****************************************************************************
588 * AddStream: called for each stream addition
589 *****************************************************************************/
590 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
592 sout_mux_sys_t *p_sys = p_mux->p_sys;
593 ts_stream_t *p_stream;
595 p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
597 /* Init this new stream */
598 if ( p_sys->b_es_id_pid )
599 p_stream->i_pid = p_input->p_fmt->i_id & 0x1fff;
601 p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
602 p_stream->i_codec = p_input->p_fmt->i_codec;
603 p_stream->i_continuity_counter = 0;
604 p_stream->i_decoder_specific_info = 0;
605 p_stream->p_decoder_specific_info = NULL;
607 msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
608 (char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
610 /* All others fields depand on codec */
611 switch( p_input->p_fmt->i_cat )
614 switch( p_input->p_fmt->i_codec )
616 case VLC_FOURCC( 'm', 'p','g', 'v' ):
617 /* TODO: do we need to check MPEG-I/II ? */
618 p_stream->i_stream_type = 0x02;
619 p_stream->i_stream_id = 0xe0;
621 case VLC_FOURCC( 'm', 'p','4', 'v' ):
622 p_stream->i_stream_type = 0x10;
623 p_stream->i_stream_id = 0xfa;
624 p_sys->i_mpeg4_streams++;
625 p_stream->i_es_id = p_stream->i_pid;
627 case VLC_FOURCC( 'h', '2','6', '4' ):
628 p_stream->i_stream_type = 0x1b;
629 p_stream->i_stream_id = 0xe0;
631 /* XXX dirty dirty but somebody want that:
632 * using crapy MS-codec XXX */
633 /* I didn't want to do that :P */
634 case VLC_FOURCC( 'H', '2', '6', '3' ):
635 case VLC_FOURCC( 'I', '2', '6', '3' ):
636 case VLC_FOURCC( 'W', 'M', 'V', '3' ):
637 case VLC_FOURCC( 'W', 'M', 'V', '2' ):
638 case VLC_FOURCC( 'W', 'M', 'V', '1' ):
639 case VLC_FOURCC( 'D', 'I', 'V', '3' ):
640 case VLC_FOURCC( 'D', 'I', 'V', '2' ):
641 case VLC_FOURCC( 'D', 'I', 'V', '1' ):
642 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
643 p_stream->i_stream_type = 0xa0; // private
644 p_stream->i_stream_id = 0xa0; // beurk
645 p_stream->i_bih_codec = p_input->p_fmt->i_codec;
646 p_stream->i_bih_width = p_input->p_fmt->video.i_width;
647 p_stream->i_bih_height = p_input->p_fmt->video.i_height;
653 p_sys->i_video_bound++;
657 switch( p_input->p_fmt->i_codec )
659 case VLC_FOURCC( 'm', 'p','g', 'a' ):
660 p_stream->i_stream_type =
661 p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
662 p_stream->i_stream_id = 0xc0;
664 case VLC_FOURCC( 'a', '5','2', ' ' ):
665 p_stream->i_stream_type = 0x81;
666 p_stream->i_stream_id = 0xbd;
668 case VLC_FOURCC( 'l', 'p','c', 'm' ):
669 p_stream->i_stream_type = 0x83;
670 p_stream->i_stream_id = 0xbd;
672 case VLC_FOURCC( 'd', 't','s', ' ' ):
673 p_stream->i_stream_type = 0x06;
674 p_stream->i_stream_id = 0xbd;
677 case VLC_FOURCC( 'm', 'p','4', 'a' ):
678 p_stream->i_stream_type = 0x11;
679 p_stream->i_stream_id = 0xfa;
680 p_sys->i_mpeg4_streams++;
681 p_stream->i_es_id = p_stream->i_pid;
687 p_sys->i_audio_bound++;
691 switch( p_input->p_fmt->i_codec )
693 case VLC_FOURCC( 's', 'p','u', ' ' ):
694 p_stream->i_stream_type = 0x82;
695 p_stream->i_stream_id = 0xbd;
697 case VLC_FOURCC( 's', 'u','b', 't' ):
698 p_stream->i_stream_type = 0x12;
699 p_stream->i_stream_id = 0xfa;
700 p_sys->i_mpeg4_streams++;
701 p_stream->i_es_id = p_stream->i_pid;
703 case VLC_FOURCC('d','v','b','s'):
704 p_stream->i_stream_type = 0x06;
705 p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
706 p_stream->i_stream_id = 0xbd;
708 case VLC_FOURCC('t','e','l','x'):
709 p_stream->i_stream_type = 0x06;
710 p_stream->i_stream_id = 0xbd; /* FIXME */
725 p_stream->lang[2] = '\0';
726 if( p_input->p_fmt->psz_language )
728 char *psz = p_input->p_fmt->psz_language;
729 const iso639_lang_t *pl = NULL;
731 if( strlen( psz ) == 2 )
733 pl = GetLang_1( psz );
735 else if( strlen( psz ) == 3 )
737 pl = GetLang_2B( psz );
738 if( !strcmp( pl->psz_iso639_1, "??" ) )
740 pl = GetLang_2T( psz );
743 if( pl && strcmp( pl->psz_iso639_1, "??" ) )
745 p_stream->lang[0] = pl->psz_iso639_2T[0];
746 p_stream->lang[1] = pl->psz_iso639_2T[1];
747 p_stream->lang[2] = pl->psz_iso639_2T[2];
749 msg_Dbg( p_mux, " - lang=%c%c%c",
750 p_stream->lang[0], p_stream->lang[1], p_stream->lang[2] );
755 /* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
756 p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
757 if( p_stream->i_decoder_specific_info > 0 )
759 p_stream->p_decoder_specific_info =
760 malloc( p_stream->i_decoder_specific_info );
761 memcpy( p_stream->p_decoder_specific_info,
762 p_input->p_fmt->p_extra,
763 p_input->p_fmt->i_extra );
766 /* Create decoder specific info for subt */
767 if( p_stream->i_codec == VLC_FOURCC( 's', 'u','b', 't' ) )
771 p_stream->i_decoder_specific_info = 55;
772 p_stream->p_decoder_specific_info = p =
773 malloc( p_stream->i_decoder_specific_info );
775 p[0] = 0x10; /* textFormat, 0x10 for 3GPP TS 26.245 */
776 p[1] = 0x00; /* flags: 1b: associated video info flag
780 p[2] = 52; /* remaining size */
784 p[0] = p[1] = p[2] = p[3] = 0; p+=4; /* display flags */
785 *p++ = 0; /* horizontal justification (-1: left, 0 center, 1 right) */
786 *p++ = 1; /* vertical justification (-1: top, 0 center, 1 bottom) */
788 p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
789 *p++ = 0xff; /* background a */
791 p[0] = p[1] = 0; p += 2; /* text box top */
792 p[0] = p[1] = 0; p += 2; /* text box left */
793 p[0] = p[1] = 0; p += 2; /* text box bottom */
794 p[0] = p[1] = 0; p += 2; /* text box right */
796 p[0] = p[1] = 0; p += 2; /* start char */
797 p[0] = p[1] = 0; p += 2; /* end char */
798 p[0] = p[1] = 0; p += 2; /* default font id */
800 *p++ = 0; /* font style flags */
801 *p++ = 12; /* font size */
803 p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
804 *p++ = 0x00; /* foreground a */
806 p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
807 memcpy( p, "ftab", 4 ); p += 4;
808 *p++ = 0; *p++ = 1; /* entry count */
809 p[0] = p[1] = 0; p += 2; /* font id */
810 *p++ = 9; /* font name length */
811 memcpy( p, "Helvetica", 9 ); /* font name */
815 BufferChainInit( &p_stream->chain_pes );
816 p_stream->i_pes_dts = 0;
817 p_stream->i_pes_length = 0;
818 p_stream->i_pes_used = 0;
819 p_stream->b_key_frame = 0;
821 /* We only change PMT version (PAT isn't changed) */
822 p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
825 if( p_input->p_fmt->i_cat != SPU_ES &&
826 ( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
828 if( p_sys->p_pcr_input )
830 /* There was already a PCR stream, so clean context */
833 p_sys->i_pcr_pid = p_stream->i_pid;
834 p_sys->p_pcr_input = p_input;
836 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
842 /*****************************************************************************
843 * DelStream: called before a stream deletion
844 *****************************************************************************/
845 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
847 sout_mux_sys_t *p_sys = p_mux->p_sys;
848 ts_stream_t *p_stream;
851 p_stream = (ts_stream_t*)p_input->p_sys;
852 msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
854 if( p_sys->i_pcr_pid == p_stream->i_pid )
858 /* Find a new pcr stream (Prefer Video Stream) */
859 p_sys->i_pcr_pid = 0x1fff;
860 p_sys->p_pcr_input = NULL;
861 for( i = 0; i < p_mux->i_nb_inputs; i++ )
863 if( p_mux->pp_inputs[i] == p_input )
868 if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
871 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
872 p_sys->p_pcr_input= p_mux->pp_inputs[i];
875 else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
876 p_sys->i_pcr_pid == 0x1fff )
879 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
880 p_sys->p_pcr_input= p_mux->pp_inputs[i];
883 if( p_sys->p_pcr_input )
885 /* Empty TS buffer */
888 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
891 /* Empty all data in chain_pes */
892 BufferChainClean( p_mux->p_sout, &p_stream->chain_pes );
894 if( p_stream->p_decoder_specific_info )
896 free( p_stream->p_decoder_specific_info );
898 if( p_stream->i_stream_id == 0xfa ||
899 p_stream->i_stream_id == 0xfb ||
900 p_stream->i_stream_id == 0xfe )
902 p_sys->i_mpeg4_streams--;
905 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
908 int i_pid_video = val.i_int;
909 if ( i_pid_video == p_stream->i_pid )
911 p_sys->i_pid_video = i_pid_video;
912 msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
915 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
918 int i_pid_audio = val.i_int;
919 if ( i_pid_audio == p_stream->i_pid )
921 p_sys->i_pid_audio = i_pid_audio;
922 msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
925 var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
928 int i_pid_spu = val.i_int;
929 if ( i_pid_spu == p_stream->i_pid )
931 p_sys->i_pid_spu = i_pid_spu;
932 msg_Dbg( p_mux, "freeing spu PID %d", i_pid_spu );
937 /* We only change PMT version (PAT isn't changed) */
938 p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
943 /*****************************************************************************
944 * Mux: Call each time there is new data for at least one stream
945 *****************************************************************************
947 *****************************************************************************/
948 static int Mux( sout_mux_t *p_mux )
950 sout_mux_sys_t *p_sys = p_mux->p_sys;
951 ts_stream_t *p_pcr_stream;
953 if( p_sys->i_pcr_pid == 0x1fff )
955 msg_Dbg( p_mux, "waiting for PCR streams" );
959 p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
963 sout_buffer_chain_t chain_ts;
967 mtime_t i_pcr_length;
968 mtime_t i_shaping_delay;
971 if( p_pcr_stream->b_key_frame )
973 i_shaping_delay = p_pcr_stream->i_pes_length;
977 i_shaping_delay = p_sys->i_shaping_delay;
980 /* 1: get enough PES packet for all input */
983 vlc_bool_t b_ok = VLC_TRUE;
986 /* Accumulate enough data in the pcr stream (>i_shaping_delay) */
987 /* Accumulate enough data in all other stream ( >= length of pcr)*/
988 for( i = 0; i < p_mux->i_nb_inputs; i++ )
990 sout_input_t *p_input = p_mux->pp_inputs[i];
991 ts_stream_t *p_stream = (ts_stream_t*)p_input->p_sys;
992 int64_t i_spu_delay = 0;
994 if( ( p_stream == p_pcr_stream &&
995 p_stream->i_pes_length < i_shaping_delay ) ||
996 p_stream->i_pes_dts + p_stream->i_pes_length <
997 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1000 if( p_input->p_fifo->i_depth <= 1 )
1002 if( p_input->p_fmt->i_cat == AUDIO_ES ||
1003 p_input->p_fmt->i_cat == VIDEO_ES )
1005 /* We need more data */
1008 else if( p_input->p_fifo->i_depth <= 0 )
1010 /* spu, only one packet is needed */
1015 /* Don't mux the SPU yet if it is too early */
1016 block_t *p_spu = block_FifoShow( p_input->p_fifo );
1019 p_spu->i_dts - p_pcr_stream->i_pes_dts;
1021 if( i_spu_delay > i_shaping_delay &&
1022 i_spu_delay < I64C(100000000) )
1025 if ( i_spu_delay >= I64C(100000000)
1026 || i_spu_delay < 10000 )
1028 BufferChainClean( p_mux->p_sout,
1029 &p_stream->chain_pes );
1030 p_stream->i_pes_dts = 0;
1031 p_stream->i_pes_used = 0;
1032 p_stream->i_pes_length = 0;
1039 p_data = block_FifoGet( p_input->p_fifo );
1040 if( p_input->p_fifo->i_depth > 0 &&
1041 p_input->p_fmt->i_cat != SPU_ES )
1043 block_t *p_next = block_FifoShow( p_input->p_fifo );
1044 p_data->i_length = p_next->i_dts - p_data->i_dts;
1047 p_data->i_length = 1000;
1049 if( ( p_pcr_stream->i_pes_dts > 0 &&
1050 p_data->i_dts - 10000000 > p_pcr_stream->i_pes_dts +
1051 p_pcr_stream->i_pes_length ) ||
1052 p_data->i_dts < p_stream->i_pes_dts ||
1053 ( p_stream->i_pes_dts > 0 &&
1054 p_input->p_fmt->i_cat != SPU_ES &&
1055 p_data->i_dts - 10000000 > p_stream->i_pes_dts +
1056 p_stream->i_pes_length ) )
1058 msg_Warn( p_mux, "packet with too strange dts "
1059 "(dts="I64Fd",old="I64Fd",pcr="I64Fd")",
1060 p_data->i_dts, p_stream->i_pes_dts,
1061 p_pcr_stream->i_pes_dts );
1062 block_Release( p_data );
1064 BufferChainClean( p_mux->p_sout,
1065 &p_stream->chain_pes );
1066 p_stream->i_pes_dts = 0;
1067 p_stream->i_pes_used = 0;
1068 p_stream->i_pes_length = 0;
1070 if( p_input->p_fmt->i_cat != SPU_ES )
1072 BufferChainClean( p_mux->p_sout,
1073 &p_pcr_stream->chain_pes );
1074 p_pcr_stream->i_pes_dts = 0;
1075 p_pcr_stream->i_pes_used = 0;
1076 p_pcr_stream->i_pes_length = 0;
1081 int i_header_size = 0;
1082 int b_data_alignment = 0;
1083 if( p_input->p_fmt->i_cat == SPU_ES )
1085 if( p_input->p_fmt->i_codec ==
1086 VLC_FOURCC('s','u','b','t') )
1088 /* Prepend header */
1089 p_data = block_Realloc( p_data, 2,
1091 p_data->p_buffer[0] =
1092 ( (p_data->i_buffer - 2) >> 8) & 0xff;
1093 p_data->p_buffer[1] =
1094 ( (p_data->i_buffer - 2) ) & 0xff;
1096 /* remove trailling \0 if any */
1097 if( p_data->i_buffer > 2 &&
1098 p_data->p_buffer[p_data->i_buffer -1] ==
1102 /* Append a empty sub (sub text only) */
1103 if( p_data->i_length > 0 &&
1104 !( p_data->i_buffer == 1 &&
1105 *p_data->p_buffer == ' ' ) )
1107 block_t *p_spu = block_New( p_mux, 3 );
1109 p_spu->i_dts = p_spu->i_pts =
1110 p_data->i_dts + p_data->i_length;
1111 p_spu->i_length = 1000;
1113 p_spu->p_buffer[0] = 0;
1114 p_spu->p_buffer[1] = 1;
1115 p_spu->p_buffer[2] = ' ';
1117 E_(EStoPES)( p_mux->p_sout, &p_spu, p_spu,
1119 p_stream->i_stream_id, 1,
1121 p_data->p_next = p_spu;
1124 else if( p_input->p_fmt->i_codec ==
1125 VLC_FOURCC('t','e','l','x') )
1128 i_header_size = 0x24;
1129 b_data_alignment = 1;
1132 else if( p_data->i_length < 0 ||
1133 p_data->i_length > 2000000 )
1135 /* FIXME choose a better value, but anyway we
1136 * should never have to do that */
1137 p_data->i_length = 1000;
1140 p_stream->i_pes_length += p_data->i_length;
1141 if( p_stream->i_pes_dts == 0 )
1143 p_stream->i_pes_dts = p_data->i_dts;
1146 /* Convert to pes */
1147 if( p_stream->i_stream_id == 0xa0 &&
1148 p_data->i_pts <= 0 )
1150 /* XXX yes I know, it's awfull, but it's needed,
1151 * so don't remove it ... */
1152 p_data->i_pts = p_data->i_dts;
1154 E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
1155 p_input->p_fmt, p_stream->i_stream_id,
1156 1, b_data_alignment, i_header_size );
1158 BufferChainAppend( &p_stream->chain_pes, p_data );
1160 if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
1161 && (p_data->i_flags & BLOCK_FLAG_TYPE_I)
1162 && !(p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME)
1163 && (p_stream->i_pes_length > 400000) )
1165 i_shaping_delay = p_stream->i_pes_length;
1166 p_stream->b_key_frame = 1;
1179 i_pcr_dts = p_pcr_stream->i_pes_dts;
1180 i_pcr_length = p_pcr_stream->i_pes_length;
1181 p_pcr_stream->b_key_frame = 0;
1183 /* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
1184 /* 2: calculate non accurate total size of muxed ts */
1186 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1188 ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1191 /* False for pcr stream but it will be enough to do PCR algo */
1192 for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
1193 p_pes = p_pes->p_next )
1195 int i_size = p_pes->i_buffer;
1196 if( p_pes->i_dts + p_pes->i_length >
1197 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1199 mtime_t i_frag = p_pcr_stream->i_pes_dts +
1200 p_pcr_stream->i_pes_length - p_pes->i_dts;
1206 i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
1208 i_packet_count += ( i_size + 183 ) / 184;
1211 /* add overhead for PCR (not really exact) */
1212 i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
1214 /* 3: mux PES into TS */
1215 BufferChainInit( &chain_ts );
1216 /* append PAT/PMT -> FIXME with big pcr delay it won't have enough pat/pmt */
1217 GetPAT( p_mux, &chain_ts);
1218 GetPMT( p_mux, &chain_ts );
1220 i_packet_count += chain_ts.i_depth;
1221 /* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
1227 ts_stream_t *p_stream;
1228 sout_input_t *p_input;
1232 /* Select stream (lowest dts) */
1233 for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
1235 p_input = p_mux->pp_inputs[i];
1236 p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1238 if( p_stream->i_pes_dts == 0 )
1243 if( i_stream == -1 ||
1244 p_stream->i_pes_dts < i_dts )
1247 i_dts = p_stream->i_pes_dts;
1250 if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
1254 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1256 /* do we need to issue pcr */
1258 if( p_stream == p_pcr_stream &&
1259 i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
1260 p_sys->i_pcr + p_sys->i_pcr_delay )
1263 p_sys->i_pcr = i_pcr_dts + i_packet_pos *
1264 i_pcr_length / i_packet_count;
1267 /* Build the TS packet */
1268 p_ts = TSNew( p_mux, p_stream, b_pcr );
1269 if( p_sys->csa != NULL &&
1270 (p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) )
1272 p_ts->i_flags |= BLOCK_FLAG_SCRAMBLED;
1277 BufferChainAppend( &chain_ts, p_ts );
1280 /* 4: date and send */
1281 TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
1285 static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1286 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1288 sout_mux_sys_t *p_sys = p_mux->p_sys;
1289 sout_buffer_chain_t new_chain;
1290 int i_packet_count = p_chain_ts->i_depth;
1293 BufferChainInit( &new_chain );
1295 if ( i_pcr_length <= 0 )
1297 i_pcr_length = i_packet_count;
1300 for( i = 0; i < i_packet_count; i++ )
1302 block_t *p_ts = BufferChainGet( p_chain_ts );
1303 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1305 BufferChainAppend( &new_chain, p_ts );
1308 p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
1310 mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
1311 mtime_t i_cut_dts = p_ts->i_dts;
1313 p_ts = BufferChainPeek( p_chain_ts );
1315 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1316 while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
1318 p_ts = BufferChainGet( p_chain_ts );
1319 i_max_diff = i_new_dts - p_ts->i_dts;
1320 i_cut_dts = p_ts->i_dts;
1321 BufferChainAppend( &new_chain, p_ts );
1323 p_ts = BufferChainPeek( p_chain_ts );
1325 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1327 msg_Dbg( p_mux, "adjusting rate at "I64Fd"/"I64Fd" (%d/%d)",
1328 i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
1329 p_chain_ts->i_depth );
1330 if ( new_chain.i_depth )
1331 TSDate( p_mux, &new_chain,
1332 i_cut_dts - i_pcr_dts,
1334 if ( p_chain_ts->i_depth )
1336 p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
1342 if ( new_chain.i_depth )
1343 TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
1346 static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1347 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1349 sout_mux_sys_t *p_sys = p_mux->p_sys;
1350 int i_packet_count = p_chain_ts->i_depth;
1353 if ( i_pcr_length / 1000 > 0 )
1355 int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
1356 / (uint64_t)(i_pcr_length / 1000);
1357 if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
1359 msg_Warn( p_mux, "max bitrate exceeded at "I64Fd
1360 " (%d bi/s for %d pkt in "I64Fd" us)",
1361 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1362 i_bitrate, i_packet_count, i_pcr_length);
1367 msg_Dbg( p_mux, "starting at "I64Fd
1368 " (%d bi/s for %d packets in "I64Fd" us)",
1369 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1370 i_bitrate, i_packet_count, i_pcr_length);
1376 /* This shouldn't happen, but happens in some rare heavy load
1377 * and packet losses conditions. */
1378 i_pcr_length = i_packet_count;
1381 /* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
1382 for( i = 0; i < i_packet_count; i++ )
1384 block_t *p_ts = BufferChainGet( p_chain_ts );
1385 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1387 p_ts->i_dts = i_new_dts;
1388 p_ts->i_length = i_pcr_length / i_packet_count;
1390 if( p_ts->i_flags & BLOCK_FLAG_CLOCK )
1392 /* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
1393 TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
1395 if( p_ts->i_flags & BLOCK_FLAG_SCRAMBLED )
1397 csa_Encrypt( p_sys->csa, p_ts->p_buffer, 0 );
1401 p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
1403 sout_AccessOutWrite( p_mux->p_access, p_ts );
1407 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
1410 block_t *p_pes = p_stream->chain_pes.p_first;
1413 vlc_bool_t b_new_pes = VLC_FALSE;
1414 vlc_bool_t b_adaptation_field = VLC_FALSE;
1416 int i_payload_max = 184 - ( b_pcr ? 8 : 0 );
1419 if( p_stream->i_pes_used <= 0 )
1421 b_new_pes = VLC_TRUE;
1423 i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
1426 if( b_pcr || i_payload < i_payload_max )
1428 b_adaptation_field = VLC_TRUE;
1431 p_ts = block_New( p_mux, 188 );
1432 p_ts->i_dts = p_pes->i_dts;
1434 p_ts->p_buffer[0] = 0x47;
1435 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
1436 ( ( p_stream->i_pid >> 8 )&0x1f );
1437 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1438 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
1439 p_stream->i_continuity_counter;
1441 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1443 if( b_adaptation_field )
1449 int i_stuffing = i_payload_max - i_payload;
1451 p_ts->i_flags |= BLOCK_FLAG_CLOCK;
1453 p_ts->p_buffer[4] = 7 + i_stuffing;
1454 p_ts->p_buffer[5] = 0x10; /* flags */
1455 p_ts->p_buffer[6] = ( 0 )&0xff;
1456 p_ts->p_buffer[7] = ( 0 )&0xff;
1457 p_ts->p_buffer[8] = ( 0 )&0xff;
1458 p_ts->p_buffer[9] = ( 0 )&0xff;
1459 p_ts->p_buffer[10]= ( ( 0 )&0x80 ) | 0x7e;
1460 p_ts->p_buffer[11]= 0;
1462 for( i = 12; i < 12 + i_stuffing; i++ )
1464 p_ts->p_buffer[i] = 0xff;
1469 int i_stuffing = i_payload_max - i_payload;
1471 p_ts->p_buffer[4] = i_stuffing - 1;
1472 if( i_stuffing > 1 )
1474 p_ts->p_buffer[5] = 0x00;
1475 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1477 p_ts->p_buffer[i] = 0xff;
1484 memcpy( &p_ts->p_buffer[188 - i_payload],
1485 &p_pes->p_buffer[p_stream->i_pes_used], i_payload );
1487 p_stream->i_pes_used += i_payload;
1488 p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
1489 p_stream->i_pes_used / p_pes->i_buffer;
1490 p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
1492 if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
1494 p_pes = BufferChainGet( &p_stream->chain_pes );
1495 block_Release( p_pes );
1497 p_pes = p_stream->chain_pes.p_first;
1500 p_stream->i_pes_dts = p_pes->i_dts;
1501 p_stream->i_pes_length = 0;
1504 p_stream->i_pes_length += p_pes->i_length;
1506 p_pes = p_pes->p_next;
1511 p_stream->i_pes_dts = 0;
1512 p_stream->i_pes_length = 0;
1514 p_stream->i_pes_used = 0;
1521 static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
1523 mtime_t i_pcr = 9 * i_dts / 100;
1525 p_ts->p_buffer[6] = ( i_pcr >> 25 )&0xff;
1526 p_ts->p_buffer[7] = ( i_pcr >> 17 )&0xff;
1527 p_ts->p_buffer[8] = ( i_pcr >> 9 )&0xff;
1528 p_ts->p_buffer[9] = ( i_pcr >> 1 )&0xff;
1529 p_ts->p_buffer[10]|= ( i_pcr << 7 )&0x80;
1533 static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
1534 mtime_t i_length, int i_bitrate_min,
1537 sout_mux_sys_t *p_sys = p_mux->p_sys;
1538 sout_buffer_chain_t s = *c;
1541 int i_packets_min = 0;
1542 int i_packets_max = 0;
1549 i_packets = c->i_depth;
1550 i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000 + 187 ) / 188;
1551 i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000 + 187 ) / 188;
1553 if( i_packets < i_packets_min && i_packets_min > 0 )
1556 int i_div = ( i_packets_min - i_packets ) / i_packets;
1557 int i_mod = ( i_packets_min - i_packets ) % i_packets;
1560 /* We need to pad with null packets (pid=0x1fff)
1561 * We try to melt null packets with true packets */
1563 "packets=%d but min=%d -> adding %d packets of padding",
1564 i_packets, i_packets_min, i_packets_min - i_packets );
1566 BufferChainInit( c );
1567 while( ( p_pk = BufferChainGet( &s ) ) )
1571 BufferChainAppend( c, p_pk );
1573 i_null = i_div + ( i_rest + i_mod ) / i_packets;
1575 for( i = 0; i < i_null; i++ )
1579 p_null = sout_BufferNew( p_mux->p_sout, 188 );
1580 p_null->p_buffer[0] = 0x47;
1581 p_null->p_buffer[1] = 0x1f;
1582 p_null->p_buffer[2] = 0xff;
1583 p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
1584 memset( &p_null->p_buffer[4], 0, 184 );
1585 p_sys->i_null_continuity_counter =
1586 ( p_sys->i_null_continuity_counter + 1 ) % 16;
1588 BufferChainAppend( c, p_null );
1591 i_rest = ( i_rest + i_mod ) % i_packets;
1594 else if( i_packets > i_packets_max && i_packets_max > 0 )
1599 /* Arg, we need to drop packets, I don't do something clever (like
1600 * dropping complete pid, b frames, ... ), I just get the right amount
1601 * of packets and discard the others */
1603 "packets=%d but max=%d -> removing %d packets -> stream broken",
1604 i_packets, i_packets_max, i_packets - i_packets_max );
1606 BufferChainInit( c );
1607 for( i = 0; i < i_packets_max; i++ )
1609 BufferChainAppend( c, BufferChainGet( &s ) );
1612 while( ( p_pk = BufferChainGet( &s ) ) )
1614 sout_BufferDelete( p_mux->p_sout, p_pk );
1620 static void PEStoTS( sout_instance_t *p_sout,
1621 sout_buffer_chain_t *c, block_t *p_pes,
1622 ts_stream_t *p_stream )
1628 /* get PES total size */
1629 i_size = p_pes->i_buffer;
1630 p_data = p_pes->p_buffer;
1632 b_new_pes = VLC_TRUE;
1636 int b_adaptation_field;
1640 p_ts = block_New( p_sout, 188 );
1643 * 1b transport_error_indicator
1644 * 1b payload_unit_start
1645 * 1b transport_priority
1647 * 2b transport_scrambling_control
1648 * 2b if adaptation_field 0x03 else 0x01
1649 * 4b continuity_counter
1652 i_copy = __MIN( i_size, 184 );
1653 b_adaptation_field = i_size < 184 ? VLC_TRUE : VLC_FALSE;
1655 p_ts->p_buffer[0] = 0x47;
1656 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
1657 ( ( p_stream->i_pid >> 8 )&0x1f );
1658 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1659 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
1660 p_stream->i_continuity_counter;
1662 b_new_pes = VLC_FALSE;
1663 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1665 if( b_adaptation_field )
1667 int i_stuffing = 184 - i_copy;
1670 p_ts->p_buffer[4] = i_stuffing - 1;
1671 if( i_stuffing > 1 )
1673 p_ts->p_buffer[5] = 0x00;
1674 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1676 p_ts->p_buffer[i] = 0xff;
1681 memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
1685 BufferChainAppend( c, p_ts );
1689 block_t *p_next = p_pes->p_next;
1691 p_pes->p_next = NULL;
1692 block_Release( p_pes );
1693 if( p_next == NULL )
1697 b_new_pes = VLC_TRUE;
1699 i_size = p_pes->i_buffer;
1700 p_data = p_pes->p_buffer;
1707 static block_t *WritePSISection( sout_instance_t *p_sout,
1708 dvbpsi_psi_section_t* p_section )
1710 block_t *p_psi, *p_first = NULL;
1717 i_size = (uint32_t)( p_section->p_payload_end - p_section->p_data )+
1718 ( p_section->b_syntax_indicator ? 4 : 0 );
1720 p_psi = block_New( p_sout, i_size + 1 );
1723 p_psi->i_length = 0;
1724 p_psi->i_buffer = i_size + 1;
1726 p_psi->p_buffer[0] = 0; // pointer
1727 memcpy( p_psi->p_buffer + 1,
1731 block_ChainAppend( &p_first, p_psi );
1733 p_section = p_section->p_next;
1739 static void GetPAT( sout_mux_t *p_mux,
1740 sout_buffer_chain_t *c )
1742 sout_mux_sys_t *p_sys = p_mux->p_sys;
1745 dvbpsi_psi_section_t *p_section;
1747 dvbpsi_InitPAT( &pat, p_sys->i_tsid, p_sys->i_pat_version_number,
1748 1 ); // b_current_next
1749 /* add all program (only one) */
1750 dvbpsi_PATAddProgram( &pat,
1752 p_sys->pmt.i_pid ); // i_pid
1754 p_section = dvbpsi_GenPATSections( &pat,
1755 0 ); // max program per section
1757 p_pat = WritePSISection( p_mux->p_sout, p_section );
1759 PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
1761 dvbpsi_DeletePSISections( p_section );
1762 dvbpsi_EmptyPAT( &pat );
1765 static uint32_t GetDescriptorLength24b( int i_length )
1767 uint32_t i_l1, i_l2, i_l3;
1769 i_l1 = i_length&0x7f;
1770 i_l2 = ( i_length >> 7 )&0x7f;
1771 i_l3 = ( i_length >> 14 )&0x7f;
1773 return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
1776 static void GetPMT( sout_mux_t *p_mux,
1777 sout_buffer_chain_t *c )
1779 sout_mux_sys_t *p_sys = p_mux->p_sys;
1783 dvbpsi_pmt_es_t *p_es;
1784 dvbpsi_psi_section_t *p_section;
1788 dvbpsi_InitPMT( &pmt,
1789 0x01, // program number
1790 p_sys->i_pmt_version_number,
1791 1, // b_current_next
1794 if( p_sys->i_mpeg4_streams > 0 )
1798 bits_buffer_t bits_fix_IOD;
1800 /* Make valgrind happy : it works at byte level not bit one so
1801 * bit_write confuse it (but DON'T CHANGE the way that bit_write is
1802 * working (needed when fixing some bits) */
1803 memset( iod, 0, 4096 );
1805 bits_initwrite( &bits, 4096, iod );
1807 bits_write( &bits, 8, 0x11 );
1809 bits_write( &bits, 8, 0x01 );
1810 // InitialObjectDescriptor
1811 bits_align( &bits );
1812 bits_write( &bits, 8, 0x02 ); // tag
1813 bits_fix_IOD = bits; // save states to fix length later
1814 bits_write( &bits, 24,
1815 GetDescriptorLength24b( 0 ) ); // variable length (fixed later)
1816 bits_write( &bits, 10, 0x01 ); // ObjectDescriptorID
1817 bits_write( &bits, 1, 0x00 ); // URL Flag
1818 bits_write( &bits, 1, 0x00 ); // includeInlineProfileLevelFlag
1819 bits_write( &bits, 4, 0x0f ); // reserved
1820 bits_write( &bits, 8, 0xff ); // ODProfile (no ODcapability )
1821 bits_write( &bits, 8, 0xff ); // sceneProfile
1822 bits_write( &bits, 8, 0xfe ); // audioProfile (unspecified)
1823 bits_write( &bits, 8, 0xfe ); // visualProfile( // )
1824 bits_write( &bits, 8, 0xff ); // graphicProfile (no )
1825 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1827 ts_stream_t *p_stream;
1828 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1830 if( p_stream->i_stream_id == 0xfa ||
1831 p_stream->i_stream_id == 0xfb ||
1832 p_stream->i_stream_id == 0xfe )
1834 bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
1836 bits_align( &bits );
1837 bits_write( &bits, 8, 0x03 ); // ES_DescrTag
1838 bits_fix_ESDescr = bits;
1839 bits_write( &bits, 24,
1840 GetDescriptorLength24b( 0 ) ); // variable size
1841 bits_write( &bits, 16, p_stream->i_es_id );
1842 bits_write( &bits, 1, 0x00 ); // streamDependency
1843 bits_write( &bits, 1, 0x00 ); // URL Flag
1844 bits_write( &bits, 1, 0x00 ); // OCRStreamFlag
1845 bits_write( &bits, 5, 0x1f ); // streamPriority
1847 // DecoderConfigDesciptor
1848 bits_align( &bits );
1849 bits_write( &bits, 8, 0x04 ); // DecoderConfigDescrTag
1850 bits_fix_Decoder = bits;
1851 bits_write( &bits, 24, GetDescriptorLength24b( 0 ) );
1852 if( p_stream->i_stream_type == 0x10 )
1854 bits_write( &bits, 8, 0x20 ); // Visual 14496-2
1855 bits_write( &bits, 6, 0x04 ); // VisualStream
1857 else if( p_stream->i_stream_type == 0x1b )
1859 bits_write( &bits, 8, 0x21 ); // Visual 14496-2
1860 bits_write( &bits, 6, 0x04 ); // VisualStream
1862 else if( p_stream->i_stream_type == 0x11 || p_stream->i_stream_type == 0x0f )
1864 bits_write( &bits, 8, 0x40 ); // Audio 14496-3
1865 bits_write( &bits, 6, 0x05 ); // AudioStream
1867 else if( p_stream->i_stream_type == 0x12 &&
1868 p_stream->i_codec == VLC_FOURCC('s','u','b','t') )
1870 bits_write( &bits, 8, 0x0B ); // Text Stream
1871 bits_write( &bits, 6, 0x04 ); // VisualStream
1875 bits_write( &bits, 8, 0x00 );
1876 bits_write( &bits, 6, 0x00 );
1878 msg_Err( p_mux->p_sout,"Unsupported stream_type => "
1881 bits_write( &bits, 1, 0x00 ); // UpStream
1882 bits_write( &bits, 1, 0x01 ); // reserved
1883 bits_write( &bits, 24, 1024 * 1024 ); // bufferSizeDB
1884 bits_write( &bits, 32, 0x7fffffff ); // maxBitrate
1885 bits_write( &bits, 32, 0 ); // avgBitrate
1887 if( p_stream->i_decoder_specific_info > 0 )
1890 // DecoderSpecificInfo
1891 bits_align( &bits );
1892 bits_write( &bits, 8, 0x05 ); // tag
1893 bits_write( &bits, 24, GetDescriptorLength24b(
1894 p_stream->i_decoder_specific_info ) );
1895 for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
1897 bits_write( &bits, 8,
1898 ((uint8_t*)p_stream->p_decoder_specific_info)[i] );
1901 /* fix Decoder length */
1902 bits_write( &bits_fix_Decoder, 24,
1903 GetDescriptorLength24b( bits.i_data -
1904 bits_fix_Decoder.i_data - 3 ) );
1906 /* SLConfigDescriptor : predifined (0x01) */
1907 bits_align( &bits );
1908 bits_write( &bits, 8, 0x06 ); // tag
1909 bits_write( &bits, 24, GetDescriptorLength24b( 8 ) );
1910 bits_write( &bits, 8, 0x01 ); // predefined
1911 bits_write( &bits, 1, 0 ); // durationFlag
1912 bits_write( &bits, 32, 0 ); // OCRResolution
1913 bits_write( &bits, 8, 0 ); // OCRLength
1914 bits_write( &bits, 8, 0 ); // InstantBitrateLength
1915 bits_align( &bits );
1917 /* fix ESDescr length */
1918 bits_write( &bits_fix_ESDescr, 24,
1919 GetDescriptorLength24b( bits.i_data -
1920 bits_fix_ESDescr.i_data - 3 ) );
1923 bits_align( &bits );
1924 /* fix IOD length */
1925 bits_write( &bits_fix_IOD, 24,
1926 GetDescriptorLength24b( bits.i_data -
1927 bits_fix_IOD.i_data - 3 ) );
1928 dvbpsi_PMTAddDescriptor( &pmt, 0x1d, bits.i_data, bits.p_data );
1931 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1933 ts_stream_t *p_stream;
1935 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1937 p_es = dvbpsi_PMTAddES( &pmt, p_stream->i_stream_type,
1939 if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
1944 es_id[0] = (p_stream->i_es_id >> 8)&0xff;
1945 es_id[1] = (p_stream->i_es_id)&0xff;
1946 dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
1948 else if( p_stream->i_stream_type == 0xa0 )
1951 int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
1953 /* private DIV3 descripor */
1954 memcpy( &data[0], &p_stream->i_bih_codec, 4 );
1955 data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
1956 data[5] = ( p_stream->i_bih_width )&0xff;
1957 data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
1958 data[7] = ( p_stream->i_bih_height )&0xff;
1959 data[8] = ( i_extra >> 8 )&0xff;
1960 data[9] = ( i_extra )&0xff;
1963 memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
1966 /* 0xa0 is private */
1967 dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
1969 else if( p_stream->i_stream_type == 0x81 )
1971 uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
1973 /* "registration" descriptor : "AC-3" */
1974 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
1976 else if( p_stream->i_codec == VLC_FOURCC('d','t','s',' ') )
1978 /* DTS registration descriptor (ETSI TS 101 154 Annex F) */
1980 /* DTS format identifier, frame size 1024 - FIXME */
1981 uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
1982 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
1984 else if( p_stream->i_codec == VLC_FOURCC('t','e','l','x') )
1986 dvbpsi_PMTESAddDescriptor( p_es, 0x56,
1987 p_stream->i_decoder_specific_info,
1988 p_stream->p_decoder_specific_info );
1990 #ifdef _DVBPSI_DR_59_H_
1991 else if( p_stream->i_codec == VLC_FOURCC('d','v','b','s') )
1994 dvbpsi_subtitling_dr_t descr;
1995 dvbpsi_subtitle_t sub;
1996 dvbpsi_descriptor_t *p_descr;
1998 memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
1999 sub.i_subtitling_type = 0x10; /* no aspect-ratio criticality */
2000 sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
2001 sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
2003 descr.i_subtitles_number = 1;
2004 descr.p_subtitle[0] = sub;
2006 p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
2007 /* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
2008 dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
2009 p_descr->i_length, p_descr->p_data );
2012 #endif /* _DVBPSI_DR_59_H_ */
2014 if( p_stream->lang[0] != 0 )
2018 /* I construct the content myself, way faster than looking at
2019 * over complicated/mind broken libdvbpsi way */
2020 data[0] = p_stream->lang[0];
2021 data[1] = p_stream->lang[1];
2022 data[2] = p_stream->lang[2];
2023 data[3] = 0x00; /* audio type: 0x00 undefined */
2025 dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4, data );
2029 p_section = dvbpsi_GenPMTSections( &pmt );
2031 p_pmt = WritePSISection( p_mux->p_sout, p_section );
2033 PEStoTS( p_mux->p_sout, c, p_pmt, &p_sys->pmt );
2035 dvbpsi_DeletePSISections( p_section );
2036 dvbpsi_EmptyPMT( &pmt );