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 SHAPING_TEXT N_("Shaping delay (ms)")
90 #define SHAPING_LONGTEXT N_("If enabled, the TS muxer will cut the " \
91 "stream in slices of the given duration, and ensure a constant bitrate " \
92 "between the two boundaries. This avoids having huge bitrate peaks for " \
93 "reference frames, in particular.")
94 #define KEYF_TEXT N_("Use keyframes")
95 #define KEYF_LONGTEXT N_("If enabled, and shaping is specified, " \
96 "the TS muxer will place the boundaries at the end of I pictures. In " \
97 "that case, the shaping duration given by the user is a worse case " \
98 "used when no reference frame is available. This enhances the efficiency " \
99 "of the shaping algorithm, since I frames are usually the biggest " \
100 "frames in the stream.")
102 #define PCR_TEXT N_("PCR delay (ms)")
103 #define PCR_LONGTEXT N_("This option allows you to set at which interval " \
104 "PCRs (Program Clock Reference) will be sent. " \
105 "This value should be below 100ms. (default is 30)")
107 #define BMIN_TEXT N_( "Minimum B (deprecated)")
108 #define BMIN_LONGTEXT N_( "This setting is deprecated and not used anymore" )
110 #define BMAX_TEXT N_( "Maximum B (deprecated)")
111 #define BMAX_LONGTEXT N_( "This setting is deprecated and not used anymore")
113 #define DTS_TEXT N_("DTS delay (ms)")
114 #define DTS_LONGTEXT N_("This option will delay the DTS (decoding time " \
115 "stamps) and PTS (presentation timestamps) of the data in the " \
116 "stream, compared to the PCRs. This allows for some buffering inside " \
117 "the client decoder.")
119 #define ACRYPT_TEXT N_("Crypt audio")
120 #define ACRYPT_LONGTEXT N_("Crypt audio using CSA")
122 #define CK_TEXT N_("CSA Key")
123 #define CK_LONGTEXT N_("Defines the CSA encryption key. This must be a " \
124 "16 char string (8 hexadecimal bytes).")
126 #define SOUT_CFG_PREFIX "sout-ts-"
129 set_description( _("TS muxer (libdvbpsi)") );
130 set_shortname( "MPEG-TS");
131 set_category( CAT_SOUT );
132 set_subcategory( SUBCAT_SOUT_MUX );
133 set_capability( "sout mux", 120 );
134 add_shortcut( "ts" );
136 add_integer( SOUT_CFG_PREFIX "pid-video", 0, NULL,VPID_TEXT, VPID_LONGTEXT,
138 add_integer( SOUT_CFG_PREFIX "pid-audio", 0, NULL, APID_TEXT,
139 APID_LONGTEXT, VLC_TRUE );
140 add_integer( SOUT_CFG_PREFIX "pid-spu", 0, NULL, SPUPID_TEXT,
141 SPUPID_LONGTEXT, VLC_TRUE );
142 add_integer( SOUT_CFG_PREFIX "pid-pmt", 0, NULL, PMTPID_TEXT,
143 PMTPID_LONGTEXT, VLC_TRUE );
144 add_integer( SOUT_CFG_PREFIX "tsid", 0, NULL, TSID_TEXT,
145 TSID_LONGTEXT, VLC_TRUE );
147 add_integer( SOUT_CFG_PREFIX "shaping", 200, NULL,SHAPING_TEXT,
148 SHAPING_LONGTEXT, VLC_TRUE );
149 add_bool( SOUT_CFG_PREFIX "use-key-frames", VLC_FALSE, NULL, KEYF_TEXT,
150 KEYF_LONGTEXT, VLC_TRUE );
152 add_integer( SOUT_CFG_PREFIX "pcr", 30, NULL, PCR_TEXT, PCR_LONGTEXT,
154 add_integer( SOUT_CFG_PREFIX "bmin", 0, NULL, BMIN_TEXT, BMIN_LONGTEXT,
156 add_integer( SOUT_CFG_PREFIX "bmax", 0, NULL, BMAX_TEXT, BMAX_LONGTEXT,
158 add_integer( SOUT_CFG_PREFIX "dts-delay", 200, NULL, DTS_TEXT,
159 DTS_LONGTEXT, VLC_TRUE );
161 add_bool( SOUT_CFG_PREFIX "crypt-audio", VLC_TRUE, NULL, ACRYPT_TEXT,
162 ACRYPT_LONGTEXT, VLC_TRUE );
164 add_string( SOUT_CFG_PREFIX "csa-ck", NULL, NULL, CK_TEXT, CK_LONGTEXT,
167 set_callbacks( Open, Close );
170 /*****************************************************************************
171 * Local data structures
172 *****************************************************************************/
173 static const char *ppsz_sout_options[] = {
174 "pid-video", "pid-audio", "pid-spu", "pid-pmt", "tsid", "shaping", "pcr",
175 "bmin", "bmax", "use-key-frames", "dts-delay", "csa-ck", "crypt-audio",
179 #define SOUT_BUFFER_FLAGS_PRIVATE_PCR ( 1 << BLOCK_FLAG_PRIVATE_SHIFT )
180 #define SOUT_BUFFER_FLAGS_PRIVATE_CSA ( 2 << BLOCK_FLAG_PRIVATE_SHIFT )
186 } sout_buffer_chain_t;
188 static inline void BufferChainInit ( sout_buffer_chain_t *c )
192 c->pp_last = &c->p_first;
194 static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
204 c->pp_last = &b->p_next;
206 static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
208 block_t *b = c->p_first;
213 c->p_first = b->p_next;
215 if( c->p_first == NULL )
217 c->pp_last = &c->p_first;
224 static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
226 block_t *b = c->p_first;
230 static inline void BufferChainClean( sout_instance_t *p_sout,
231 sout_buffer_chain_t *c )
235 while( ( b = BufferChainGet( c ) ) )
239 BufferChainInit( c );
242 typedef struct ts_stream_t
245 vlc_fourcc_t i_codec;
249 int i_continuity_counter;
251 /* to be used for carriege of DIV3 */
252 vlc_fourcc_t i_bih_codec;
253 int i_bih_width, i_bih_height;
255 /* Specific to mpeg4 in mpeg2ts */
258 int i_decoder_specific_info;
259 uint8_t *p_decoder_specific_info;
261 /* language is iso639-2T */
264 sout_buffer_chain_t chain_pes;
266 mtime_t i_pes_length;
268 vlc_bool_t b_key_frame;
272 struct sout_mux_sys_t
275 sout_input_t *p_pcr_input;
283 int i_pid_free; // first usable pid
286 int i_pat_version_number;
289 int i_pmt_version_number;
290 ts_stream_t pmt; // Up to now only one program
294 int i_null_continuity_counter; /* Needed ? */
296 /* for TS building */
297 int64_t i_bitrate_min;
298 int64_t i_bitrate_max;
300 int64_t i_shaping_delay;
305 vlc_bool_t b_use_key_frames;
307 mtime_t i_pcr; /* last PCR emited */
310 vlc_bool_t b_crypt_audio;
314 /* Reserve a pid and return it */
315 static int AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
318 if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
320 i_pid = p_sys->i_pid_video;
321 p_sys->i_pid_video = 0;
323 else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
325 i_pid = p_sys->i_pid_audio;
326 p_sys->i_pid_audio = 0;
328 else if ( i_cat == SPU_ES && p_sys->i_pid_spu )
330 i_pid = p_sys->i_pid_spu;
331 p_sys->i_pid_spu = 0;
335 i_pid = ++p_sys->i_pid_free;
340 /*****************************************************************************
342 *****************************************************************************/
343 static int Control ( sout_mux_t *, int, va_list );
344 static int AddStream( sout_mux_t *, sout_input_t * );
345 static int DelStream( sout_mux_t *, sout_input_t * );
346 static int Mux ( sout_mux_t * );
348 static void TSSchedule ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
349 mtime_t i_pcr_length, mtime_t i_pcr_dts );
350 static void TSDate ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
351 mtime_t i_pcr_length, mtime_t i_pcr_dts );
352 static void GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
353 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
355 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, vlc_bool_t b_pcr );
356 static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
358 static void PEStoTS ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
360 /*****************************************************************************
362 *****************************************************************************/
363 static int Open( vlc_object_t *p_this )
365 sout_mux_t *p_mux =(sout_mux_t*)p_this;
366 sout_mux_sys_t *p_sys;
369 msg_Dbg( p_mux, "Open" );
370 sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
372 p_sys = malloc( sizeof( sout_mux_sys_t ) );
374 p_mux->pf_control = Control;
375 p_mux->pf_addstream = AddStream;
376 p_mux->pf_delstream = DelStream;
378 p_mux->p_sys = p_sys;
380 srand( (uint32_t)mdate() );
382 p_sys->i_audio_bound = 0;
383 p_sys->i_video_bound = 0;
385 p_sys->i_pat_version_number = rand() % 32;
386 p_sys->pat.i_pid = 0;
387 p_sys->pat.i_continuity_counter = 0;
389 var_Get( p_mux, SOUT_CFG_PREFIX "tsid", &val );
391 p_sys->i_tsid = val.i_int;
393 p_sys->i_tsid = rand() % 65536;
394 p_sys->i_pmt_version_number = rand() % 32;
395 p_sys->pmt.i_continuity_counter = 0;
397 var_Get( p_mux, SOUT_CFG_PREFIX "pid-pmt", &val );
400 p_sys->pmt.i_pid = val.i_int;
404 p_sys->pmt.i_pid = 0x42;
407 p_sys->i_pid_free = p_sys->pmt.i_pid + 1;
409 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
410 p_sys->i_pid_video = val.i_int;
411 if ( p_sys->i_pid_video > p_sys->i_pid_free )
413 p_sys->i_pid_free = p_sys->i_pid_video + 1;
416 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
417 p_sys->i_pid_audio = val.i_int;
418 if ( p_sys->i_pid_audio > p_sys->i_pid_free )
420 p_sys->i_pid_free = p_sys->i_pid_audio + 1;
423 var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
424 p_sys->i_pid_spu = val.i_int;
425 if ( p_sys->i_pid_spu > p_sys->i_pid_free )
427 p_sys->i_pid_free = p_sys->i_pid_spu + 1;
430 p_sys->i_pcr_pid = 0x1fff;
431 p_sys->p_pcr_input = NULL;
433 p_sys->i_mpeg4_streams = 0;
435 p_sys->i_null_continuity_counter = 0;
437 /* Allow to create constrained stream */
438 var_Get( p_mux, SOUT_CFG_PREFIX "bmin", &val );
439 p_sys->i_bitrate_min = val.i_int;
441 var_Get( p_mux, SOUT_CFG_PREFIX "bmax", &val );
442 p_sys->i_bitrate_max = val.i_int;
444 if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
445 p_sys->i_bitrate_min > p_sys->i_bitrate_max )
447 msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
448 "disabling bitrate control" );
449 p_sys->i_bitrate_min = 0;
450 p_sys->i_bitrate_max = 0;
452 if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
454 msg_Err( p_mux, "bmin and bmax no more supported "
455 "(if you need them report it)" );
458 var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
459 p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
460 if( p_sys->i_shaping_delay <= 0 )
463 "invalid shaping ("I64Fd"ms) resetting to 200ms",
464 p_sys->i_shaping_delay / 1000 );
465 p_sys->i_shaping_delay = 200000;
468 var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
469 p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
470 if( p_sys->i_pcr_delay <= 0 ||
471 p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
474 "invalid pcr delay ("I64Fd"ms) resetting to 30ms",
475 p_sys->i_pcr_delay / 1000 );
476 p_sys->i_pcr_delay = 30000;
479 var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
480 p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
482 msg_Dbg( p_mux, "shaping="I64Fd" pcr="I64Fd" dts_delay="I64Fd,
483 p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
485 var_Get( p_mux, SOUT_CFG_PREFIX "use-key-frames", &val );
486 p_sys->b_use_key_frames = val.b_bool;
488 /* for TS generation */
492 var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
495 char *psz = val.psz_string;
498 if( psz[0] == '0' && ( psz[1] == 'x' || psz[1] == 'X' ) )
502 if( strlen( psz ) != 16 )
504 msg_Dbg( p_mux, "invalid csa ck (it must be 16 chars long)" );
508 uint64_t i_ck = strtoull( psz, NULL, 16 );
512 for( i = 0; i < 8; i++ )
514 ck[i] = ( i_ck >> ( 56 - 8*i) )&0xff;
517 msg_Dbg( p_mux, "using CSA scrambling with ck=%x:%x:%x:%x:%x:%x:%x:%x",
518 ck[0], ck[1], ck[2], ck[3], ck[4], ck[5], ck[6], ck[7] );
520 p_sys->csa = csa_New();
521 csa_SetCW( p_sys->csa, ck, ck );
524 if( val.psz_string ) free( val.psz_string );
526 var_Get( p_mux, SOUT_CFG_PREFIX "crypt-audio", &val );
527 p_sys->b_crypt_audio = val.b_bool;
532 /*****************************************************************************
534 *****************************************************************************/
535 static void Close( vlc_object_t * p_this )
537 sout_mux_t *p_mux = (sout_mux_t*)p_this;
538 sout_mux_sys_t *p_sys = p_mux->p_sys;
540 msg_Dbg( p_mux, "Close" );
543 csa_Delete( p_sys->csa );
549 /*****************************************************************************
551 *****************************************************************************/
552 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
559 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
560 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
564 case MUX_GET_ADD_STREAM_WAIT:
565 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
566 *pb_bool = VLC_FALSE;
570 ppsz = (char**)va_arg( args, char ** );
571 *ppsz = strdup( "video/mpeg" ); /* FIXME not sure */
579 /*****************************************************************************
580 * AddStream: called for each stream addition
581 *****************************************************************************/
582 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
584 sout_mux_sys_t *p_sys = p_mux->p_sys;
585 ts_stream_t *p_stream;
587 p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
589 /* Init this new stream */
590 p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
591 p_stream->i_codec = p_input->p_fmt->i_codec;
592 p_stream->i_continuity_counter = 0;
593 p_stream->i_decoder_specific_info = 0;
594 p_stream->p_decoder_specific_info = NULL;
596 msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
597 (char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
599 /* All others fields depand on codec */
600 switch( p_input->p_fmt->i_cat )
603 switch( p_input->p_fmt->i_codec )
605 case VLC_FOURCC( 'm', 'p','g', 'v' ):
606 /* TODO: do we need to check MPEG-I/II ? */
607 p_stream->i_stream_type = 0x02;
608 p_stream->i_stream_id = 0xe0;
610 case VLC_FOURCC( 'm', 'p','4', 'v' ):
611 p_stream->i_stream_type = 0x10;
612 p_stream->i_stream_id = 0xfa;
613 p_sys->i_mpeg4_streams++;
614 p_stream->i_es_id = p_stream->i_pid;
616 case VLC_FOURCC( 'h', '2','6', '4' ):
617 p_stream->i_stream_type = 0x1b;
618 p_stream->i_stream_id = 0xe0;
620 /* XXX dirty dirty but somebody want that:
621 * using crapy MS-codec XXX */
622 /* I didn't want to do that :P */
623 case VLC_FOURCC( 'H', '2', '6', '3' ):
624 case VLC_FOURCC( 'I', '2', '6', '3' ):
625 case VLC_FOURCC( 'W', 'M', 'V', '3' ):
626 case VLC_FOURCC( 'W', 'M', 'V', '2' ):
627 case VLC_FOURCC( 'W', 'M', 'V', '1' ):
628 case VLC_FOURCC( 'D', 'I', 'V', '3' ):
629 case VLC_FOURCC( 'D', 'I', 'V', '2' ):
630 case VLC_FOURCC( 'D', 'I', 'V', '1' ):
631 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
632 p_stream->i_stream_type = 0xa0; // private
633 p_stream->i_stream_id = 0xa0; // beurk
634 p_stream->i_bih_codec = p_input->p_fmt->i_codec;
635 p_stream->i_bih_width = p_input->p_fmt->video.i_width;
636 p_stream->i_bih_height = p_input->p_fmt->video.i_height;
642 p_sys->i_video_bound++;
646 switch( p_input->p_fmt->i_codec )
648 case VLC_FOURCC( 'm', 'p','g', 'a' ):
649 p_stream->i_stream_type =
650 p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
651 p_stream->i_stream_id = 0xc0;
653 case VLC_FOURCC( 'a', '5','2', ' ' ):
654 p_stream->i_stream_type = 0x81;
655 p_stream->i_stream_id = 0xbd;
657 case VLC_FOURCC( 'l', 'p','c', 'm' ):
658 p_stream->i_stream_type = 0x83;
659 p_stream->i_stream_id = 0xbd;
661 case VLC_FOURCC( 'd', 't','s', ' ' ):
662 p_stream->i_stream_type = 0x06;
663 p_stream->i_stream_id = 0xbd;
666 case VLC_FOURCC( 'm', 'p','4', 'a' ):
667 p_stream->i_stream_type = 0x11;
668 p_stream->i_stream_id = 0xfa;
669 p_sys->i_mpeg4_streams++;
670 p_stream->i_es_id = p_stream->i_pid;
676 p_sys->i_audio_bound++;
680 switch( p_input->p_fmt->i_codec )
682 case VLC_FOURCC( 's', 'p','u', ' ' ):
683 p_stream->i_stream_type = 0x82;
684 p_stream->i_stream_id = 0xbd;
686 case VLC_FOURCC( 's', 'u','b', 't' ):
687 p_stream->i_stream_type = 0x12;
688 p_stream->i_stream_id = 0xfa;
689 p_sys->i_mpeg4_streams++;
690 p_stream->i_es_id = p_stream->i_pid;
692 case VLC_FOURCC('d','v','b','s'):
693 p_stream->i_stream_type = 0x06;
694 p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
695 p_stream->i_stream_id = 0xbd;
697 case VLC_FOURCC('t','e','l','x'):
698 p_stream->i_stream_type = 0x06;
699 p_stream->i_stream_id = 0xbd; /* FIXME */
714 p_stream->lang[2] = '\0';
715 if( p_input->p_fmt->psz_language )
717 char *psz = p_input->p_fmt->psz_language;
718 const iso639_lang_t *pl = NULL;
720 if( strlen( psz ) == 2 )
722 pl = GetLang_1( psz );
724 else if( strlen( psz ) == 3 )
726 pl = GetLang_2B( psz );
727 if( !strcmp( pl->psz_iso639_1, "??" ) )
729 pl = GetLang_2T( psz );
732 if( pl && strcmp( pl->psz_iso639_1, "??" ) )
734 p_stream->lang[0] = pl->psz_iso639_2T[0];
735 p_stream->lang[1] = pl->psz_iso639_2T[1];
736 p_stream->lang[2] = pl->psz_iso639_2T[2];
738 msg_Dbg( p_mux, " - lang=%c%c%c",
739 p_stream->lang[0], p_stream->lang[1], p_stream->lang[2] );
744 /* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
745 p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
746 if( p_stream->i_decoder_specific_info > 0 )
748 p_stream->p_decoder_specific_info =
749 malloc( p_stream->i_decoder_specific_info );
750 memcpy( p_stream->p_decoder_specific_info,
751 p_input->p_fmt->p_extra,
752 p_input->p_fmt->i_extra );
755 /* Create decoder specific info for subt */
756 if( p_stream->i_codec == VLC_FOURCC( 's', 'u','b', 't' ) )
760 p_stream->i_decoder_specific_info = 55;
761 p_stream->p_decoder_specific_info = p =
762 malloc( p_stream->i_decoder_specific_info );
764 p[0] = 0x10; /* textFormat, 0x10 for 3GPP TS 26.245 */
765 p[1] = 0x00; /* flags: 1b: associated video info flag
769 p[2] = 52; /* remaining size */
773 p[0] = p[1] = p[2] = p[3] = 0; p+=4; /* display flags */
774 *p++ = 0; /* horizontal justification (-1: left, 0 center, 1 right) */
775 *p++ = 1; /* vertical justification (-1: top, 0 center, 1 bottom) */
777 p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
778 *p++ = 0xff; /* background a */
780 p[0] = p[1] = 0; p += 2; /* text box top */
781 p[0] = p[1] = 0; p += 2; /* text box left */
782 p[0] = p[1] = 0; p += 2; /* text box bottom */
783 p[0] = p[1] = 0; p += 2; /* text box right */
785 p[0] = p[1] = 0; p += 2; /* start char */
786 p[0] = p[1] = 0; p += 2; /* end char */
787 p[0] = p[1] = 0; p += 2; /* default font id */
789 *p++ = 0; /* font style flags */
790 *p++ = 12; /* font size */
792 p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
793 *p++ = 0x00; /* foreground a */
795 p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
796 memcpy( p, "ftab", 4 ); p += 4;
797 *p++ = 0; *p++ = 1; /* entry count */
798 p[0] = p[1] = 0; p += 2; /* font id */
799 *p++ = 9; /* font name length */
800 memcpy( p, "Helvetica", 9 ); /* font name */
804 BufferChainInit( &p_stream->chain_pes );
805 p_stream->i_pes_dts = 0;
806 p_stream->i_pes_length = 0;
807 p_stream->i_pes_used = 0;
808 p_stream->b_key_frame = 0;
810 /* We only change PMT version (PAT isn't changed) */
811 p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
814 if( p_input->p_fmt->i_cat != SPU_ES &&
815 ( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
817 if( p_sys->p_pcr_input )
819 /* There was already a PCR stream, so clean context */
822 p_sys->i_pcr_pid = p_stream->i_pid;
823 p_sys->p_pcr_input = p_input;
825 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
831 /*****************************************************************************
832 * DelStream: called before a stream deletion
833 *****************************************************************************/
834 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
836 sout_mux_sys_t *p_sys = p_mux->p_sys;
837 ts_stream_t *p_stream;
840 p_stream = (ts_stream_t*)p_input->p_sys;
841 msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
843 if( p_sys->i_pcr_pid == p_stream->i_pid )
847 /* Find a new pcr stream (Prefer Video Stream) */
848 p_sys->i_pcr_pid = 0x1fff;
849 p_sys->p_pcr_input = NULL;
850 for( i = 0; i < p_mux->i_nb_inputs; i++ )
852 if( p_mux->pp_inputs[i] == p_input )
857 if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
860 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
861 p_sys->p_pcr_input= p_mux->pp_inputs[i];
864 else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
865 p_sys->i_pcr_pid == 0x1fff )
868 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
869 p_sys->p_pcr_input= p_mux->pp_inputs[i];
872 if( p_sys->p_pcr_input )
874 /* Empty TS buffer */
877 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
880 /* Empty all data in chain_pes */
881 BufferChainClean( p_mux->p_sout, &p_stream->chain_pes );
883 if( p_stream->p_decoder_specific_info )
885 free( p_stream->p_decoder_specific_info );
887 if( p_stream->i_stream_id == 0xfa ||
888 p_stream->i_stream_id == 0xfb ||
889 p_stream->i_stream_id == 0xfe )
891 p_sys->i_mpeg4_streams--;
894 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
897 int i_pid_video = val.i_int;
898 if ( i_pid_video == p_stream->i_pid )
900 p_sys->i_pid_video = i_pid_video;
901 msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
904 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
907 int i_pid_audio = val.i_int;
908 if ( i_pid_audio == p_stream->i_pid )
910 p_sys->i_pid_audio = i_pid_audio;
911 msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
914 var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
917 int i_pid_spu = val.i_int;
918 if ( i_pid_spu == p_stream->i_pid )
920 p_sys->i_pid_spu = i_pid_spu;
921 msg_Dbg( p_mux, "freeing spu PID %d", i_pid_spu );
926 /* We only change PMT version (PAT isn't changed) */
927 p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
932 /*****************************************************************************
933 * Mux: Call each time there is new data for at least one stream
934 *****************************************************************************
936 *****************************************************************************/
937 static int Mux( sout_mux_t *p_mux )
939 sout_mux_sys_t *p_sys = p_mux->p_sys;
940 ts_stream_t *p_pcr_stream;
942 if( p_sys->i_pcr_pid == 0x1fff )
944 msg_Dbg( p_mux, "waiting for PCR streams" );
948 p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
952 sout_buffer_chain_t chain_ts;
956 mtime_t i_pcr_length;
957 mtime_t i_shaping_delay;
960 if( p_pcr_stream->b_key_frame )
962 i_shaping_delay = p_pcr_stream->i_pes_length;
966 i_shaping_delay = p_sys->i_shaping_delay;
969 /* 1: get enough PES packet for all input */
972 vlc_bool_t b_ok = VLC_TRUE;
975 /* Accumulate enough data in the pcr stream (>i_shaping_delay) */
976 /* Accumulate enough data in all other stream ( >= length of pcr)*/
977 for( i = 0; i < p_mux->i_nb_inputs; i++ )
979 sout_input_t *p_input = p_mux->pp_inputs[i];
980 ts_stream_t *p_stream = (ts_stream_t*)p_input->p_sys;
981 int64_t i_spu_delay = 0;
983 if( ( p_stream == p_pcr_stream &&
984 p_stream->i_pes_length < i_shaping_delay ) ||
985 p_stream->i_pes_dts + p_stream->i_pes_length <
986 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
989 if( p_input->p_fifo->i_depth <= 1 )
991 if( p_input->p_fmt->i_cat == AUDIO_ES ||
992 p_input->p_fmt->i_cat == VIDEO_ES )
994 /* We need more data */
997 else if( p_input->p_fifo->i_depth <= 0 )
999 /* spu, only one packet is needed */
1004 /* Don't mux the SPU yet if it is too early */
1005 block_t *p_spu = block_FifoShow( p_input->p_fifo );
1008 p_spu->i_dts - p_pcr_stream->i_pes_dts;
1010 if( i_spu_delay > i_shaping_delay &&
1011 i_spu_delay < I64C(100000000) )
1014 if ( i_spu_delay >= I64C(100000000)
1015 || i_spu_delay < 10000 )
1017 BufferChainClean( p_mux->p_sout,
1018 &p_stream->chain_pes );
1019 p_stream->i_pes_dts = 0;
1020 p_stream->i_pes_used = 0;
1021 p_stream->i_pes_length = 0;
1028 p_data = block_FifoGet( p_input->p_fifo );
1029 if( p_input->p_fifo->i_depth > 0 &&
1030 p_input->p_fmt->i_cat != SPU_ES )
1032 block_t *p_next = block_FifoShow( p_input->p_fifo );
1033 p_data->i_length = p_next->i_dts - p_data->i_dts;
1036 p_data->i_length = 1000;
1038 if( ( p_pcr_stream->i_pes_dts > 0 &&
1039 p_data->i_dts - 10000000 > p_pcr_stream->i_pes_dts +
1040 p_pcr_stream->i_pes_length ) ||
1041 p_data->i_dts < p_stream->i_pes_dts ||
1042 ( p_stream->i_pes_dts > 0 &&
1043 p_input->p_fmt->i_cat != SPU_ES &&
1044 p_data->i_dts - 10000000 > p_stream->i_pes_dts +
1045 p_stream->i_pes_length ) )
1047 msg_Warn( p_mux, "packet with too strange dts "
1048 "(dts="I64Fd",old="I64Fd",pcr="I64Fd")",
1049 p_data->i_dts, p_stream->i_pes_dts,
1050 p_pcr_stream->i_pes_dts );
1051 block_Release( p_data );
1053 BufferChainClean( p_mux->p_sout,
1054 &p_stream->chain_pes );
1055 p_stream->i_pes_dts = 0;
1056 p_stream->i_pes_used = 0;
1057 p_stream->i_pes_length = 0;
1059 if( p_input->p_fmt->i_cat != SPU_ES )
1061 BufferChainClean( p_mux->p_sout,
1062 &p_pcr_stream->chain_pes );
1063 p_pcr_stream->i_pes_dts = 0;
1064 p_pcr_stream->i_pes_used = 0;
1065 p_pcr_stream->i_pes_length = 0;
1070 int i_header_size = 0;
1071 int b_data_alignment = 0;
1072 if( p_input->p_fmt->i_cat == SPU_ES )
1074 if( p_input->p_fmt->i_codec ==
1075 VLC_FOURCC('s','u','b','t') )
1077 /* Prepend header */
1078 p_data = block_Realloc( p_data, 2,
1080 p_data->p_buffer[0] =
1081 ( (p_data->i_buffer - 2) >> 8) & 0xff;
1082 p_data->p_buffer[1] =
1083 ( (p_data->i_buffer - 2) ) & 0xff;
1085 /* remove trailling \0 if any */
1086 if( p_data->i_buffer > 2 &&
1087 p_data->p_buffer[p_data->i_buffer -1] ==
1091 /* Append a empty sub (sub text only) */
1092 if( p_data->i_length > 0 &&
1093 !( p_data->i_buffer == 1 &&
1094 *p_data->p_buffer == ' ' ) )
1096 block_t *p_spu = block_New( p_mux, 3 );
1098 p_spu->i_dts = p_spu->i_pts =
1099 p_data->i_dts + p_data->i_length;
1100 p_spu->i_length = 1000;
1102 p_spu->p_buffer[0] = 0;
1103 p_spu->p_buffer[1] = 1;
1104 p_spu->p_buffer[2] = ' ';
1106 E_(EStoPES)( p_mux->p_sout, &p_spu, p_spu,
1108 p_stream->i_stream_id, 1,
1110 p_data->p_next = p_spu;
1113 else if( p_input->p_fmt->i_codec ==
1114 VLC_FOURCC('t','e','l','x') )
1117 i_header_size = 0x24;
1118 b_data_alignment = 1;
1121 else if( p_data->i_length < 0 ||
1122 p_data->i_length > 2000000 )
1124 /* FIXME choose a better value, but anyway we
1125 * should never have to do that */
1126 p_data->i_length = 1000;
1129 p_stream->i_pes_length += p_data->i_length;
1130 if( p_stream->i_pes_dts == 0 )
1132 p_stream->i_pes_dts = p_data->i_dts;
1135 /* Convert to pes */
1136 if( p_stream->i_stream_id == 0xa0 &&
1137 p_data->i_pts <= 0 )
1139 /* XXX yes I know, it's awfull, but it's needed,
1140 * so don't remove it ... */
1141 p_data->i_pts = p_data->i_dts;
1143 E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
1144 p_input->p_fmt, p_stream->i_stream_id,
1145 1, b_data_alignment, i_header_size );
1147 BufferChainAppend( &p_stream->chain_pes, p_data );
1149 if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
1150 && (p_data->i_flags & BLOCK_FLAG_TYPE_I)
1151 && !(p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME)
1152 && (p_stream->i_pes_length > 400000) )
1154 i_shaping_delay = p_stream->i_pes_length;
1155 p_stream->b_key_frame = 1;
1168 i_pcr_dts = p_pcr_stream->i_pes_dts;
1169 i_pcr_length = p_pcr_stream->i_pes_length;
1170 p_pcr_stream->b_key_frame = 0;
1172 /* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
1173 /* 2: calculate non accurate total size of muxed ts */
1175 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1177 ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1180 /* False for pcr stream but it will be enough to do PCR algo */
1181 for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
1182 p_pes = p_pes->p_next )
1184 int i_size = p_pes->i_buffer;
1185 if( p_pes->i_dts + p_pes->i_length >
1186 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1188 mtime_t i_frag = p_pcr_stream->i_pes_dts +
1189 p_pcr_stream->i_pes_length - p_pes->i_dts;
1195 i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
1197 i_packet_count += ( i_size + 183 ) / 184;
1200 /* add overhead for PCR (not really exact) */
1201 i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
1203 /* 3: mux PES into TS */
1204 BufferChainInit( &chain_ts );
1205 /* append PAT/PMT -> FIXME with big pcr delay it won't have enough pat/pmt */
1206 GetPAT( p_mux, &chain_ts);
1207 GetPMT( p_mux, &chain_ts );
1209 i_packet_count += chain_ts.i_depth;
1210 /* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
1216 ts_stream_t *p_stream;
1217 sout_input_t *p_input;
1221 /* Select stream (lowest dts) */
1222 for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
1224 p_input = p_mux->pp_inputs[i];
1225 p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1227 if( p_stream->i_pes_dts == 0 )
1232 if( i_stream == -1 ||
1233 p_stream->i_pes_dts < i_dts )
1236 i_dts = p_stream->i_pes_dts;
1239 if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
1243 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1245 /* do we need to issue pcr */
1247 if( p_stream == p_pcr_stream &&
1248 i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
1249 p_sys->i_pcr + p_sys->i_pcr_delay )
1252 p_sys->i_pcr = i_pcr_dts + i_packet_pos *
1253 i_pcr_length / i_packet_count;
1256 /* Build the TS packet */
1257 p_ts = TSNew( p_mux, p_stream, b_pcr );
1258 if( p_sys->csa != NULL &&
1259 (p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) )
1261 p_ts->i_flags |= SOUT_BUFFER_FLAGS_PRIVATE_CSA;
1266 BufferChainAppend( &chain_ts, p_ts );
1269 /* 4: date and send */
1270 TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
1274 static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1275 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1277 sout_mux_sys_t *p_sys = p_mux->p_sys;
1278 sout_buffer_chain_t new_chain;
1279 int i_packet_count = p_chain_ts->i_depth;
1282 BufferChainInit( &new_chain );
1284 if ( i_pcr_length <= 0 )
1286 i_pcr_length = i_packet_count;
1289 for( i = 0; i < i_packet_count; i++ )
1291 block_t *p_ts = BufferChainGet( p_chain_ts );
1292 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1294 BufferChainAppend( &new_chain, p_ts );
1297 p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
1299 mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
1300 mtime_t i_cut_dts = p_ts->i_dts;
1302 p_ts = BufferChainPeek( p_chain_ts );
1304 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1305 while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
1307 p_ts = BufferChainGet( p_chain_ts );
1308 i_max_diff = i_new_dts - p_ts->i_dts;
1309 i_cut_dts = p_ts->i_dts;
1310 BufferChainAppend( &new_chain, p_ts );
1312 p_ts = BufferChainPeek( p_chain_ts );
1314 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1316 msg_Dbg( p_mux, "adjusting rate at "I64Fd"/"I64Fd" (%d/%d)",
1317 i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
1318 p_chain_ts->i_depth );
1319 if ( new_chain.i_depth )
1320 TSDate( p_mux, &new_chain,
1321 i_cut_dts - i_pcr_dts,
1323 if ( p_chain_ts->i_depth )
1325 p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
1331 if ( new_chain.i_depth )
1332 TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
1335 static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1336 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1338 sout_mux_sys_t *p_sys = p_mux->p_sys;
1339 int i_packet_count = p_chain_ts->i_depth;
1342 if ( i_pcr_length / 1000 > 0 )
1344 int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
1345 / (uint64_t)(i_pcr_length / 1000);
1346 if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
1348 msg_Warn( p_mux, "max bitrate exceeded at "I64Fd
1349 " (%d bi/s for %d pkt in "I64Fd" us)",
1350 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1351 i_bitrate, i_packet_count, i_pcr_length);
1356 msg_Dbg( p_mux, "starting at "I64Fd
1357 " (%d bi/s for %d packets in "I64Fd" us)",
1358 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1359 i_bitrate, i_packet_count, i_pcr_length);
1365 /* This shouldn't happen, but happens in some rare heavy load
1366 * and packet losses conditions. */
1367 i_pcr_length = i_packet_count;
1370 /* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
1371 for( i = 0; i < i_packet_count; i++ )
1373 block_t *p_ts = BufferChainGet( p_chain_ts );
1374 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1376 p_ts->i_dts = i_new_dts;
1377 p_ts->i_length = i_pcr_length / i_packet_count;
1379 if( p_ts->i_flags & SOUT_BUFFER_FLAGS_PRIVATE_PCR )
1381 /* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
1382 TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
1384 if( p_ts->i_flags & SOUT_BUFFER_FLAGS_PRIVATE_CSA )
1386 csa_Encrypt( p_sys->csa, p_ts->p_buffer, 0 );
1390 p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
1392 sout_AccessOutWrite( p_mux->p_access, p_ts );
1396 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
1399 block_t *p_pes = p_stream->chain_pes.p_first;
1402 vlc_bool_t b_new_pes = VLC_FALSE;
1403 vlc_bool_t b_adaptation_field = VLC_FALSE;
1405 int i_payload_max = 184 - ( b_pcr ? 8 : 0 );
1408 if( p_stream->i_pes_used <= 0 )
1410 b_new_pes = VLC_TRUE;
1412 i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
1415 if( b_pcr || i_payload < i_payload_max )
1417 b_adaptation_field = VLC_TRUE;
1420 p_ts = block_New( p_mux, 188 );
1421 p_ts->i_dts = p_pes->i_dts;
1423 p_ts->p_buffer[0] = 0x47;
1424 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
1425 ( ( p_stream->i_pid >> 8 )&0x1f );
1426 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1427 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
1428 p_stream->i_continuity_counter;
1430 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1432 if( b_adaptation_field )
1438 int i_stuffing = i_payload_max - i_payload;
1440 p_ts->i_flags |= SOUT_BUFFER_FLAGS_PRIVATE_PCR;
1442 p_ts->p_buffer[4] = 7 + i_stuffing;
1443 p_ts->p_buffer[5] = 0x10; /* flags */
1444 p_ts->p_buffer[6] = ( 0 )&0xff;
1445 p_ts->p_buffer[7] = ( 0 )&0xff;
1446 p_ts->p_buffer[8] = ( 0 )&0xff;
1447 p_ts->p_buffer[9] = ( 0 )&0xff;
1448 p_ts->p_buffer[10]= ( 0 )&0x80;
1449 p_ts->p_buffer[11]= 0;
1451 for( i = 12; i < 12 + i_stuffing; i++ )
1453 p_ts->p_buffer[i] = 0xff;
1458 int i_stuffing = i_payload_max - i_payload;
1460 p_ts->p_buffer[4] = i_stuffing - 1;
1461 if( i_stuffing > 1 )
1463 p_ts->p_buffer[5] = 0x00;
1464 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1466 p_ts->p_buffer[i] = 0xff;
1473 memcpy( &p_ts->p_buffer[188 - i_payload],
1474 &p_pes->p_buffer[p_stream->i_pes_used], i_payload );
1476 p_stream->i_pes_used += i_payload;
1477 p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
1478 p_stream->i_pes_used / p_pes->i_buffer;
1479 p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
1481 if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
1483 p_pes = BufferChainGet( &p_stream->chain_pes );
1484 block_Release( p_pes );
1486 p_pes = p_stream->chain_pes.p_first;
1489 p_stream->i_pes_dts = p_pes->i_dts;
1490 p_stream->i_pes_length = 0;
1493 p_stream->i_pes_length += p_pes->i_length;
1495 p_pes = p_pes->p_next;
1500 p_stream->i_pes_dts = 0;
1501 p_stream->i_pes_length = 0;
1503 p_stream->i_pes_used = 0;
1510 static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
1512 mtime_t i_pcr = 9 * i_dts / 100;
1514 p_ts->p_buffer[6] = ( i_pcr >> 25 )&0xff;
1515 p_ts->p_buffer[7] = ( i_pcr >> 17 )&0xff;
1516 p_ts->p_buffer[8] = ( i_pcr >> 9 )&0xff;
1517 p_ts->p_buffer[9] = ( i_pcr >> 1 )&0xff;
1518 p_ts->p_buffer[10]|= ( i_pcr << 7 )&0x80;
1522 static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
1523 mtime_t i_length, int i_bitrate_min,
1526 sout_mux_sys_t *p_sys = p_mux->p_sys;
1527 sout_buffer_chain_t s = *c;
1530 int i_packets_min = 0;
1531 int i_packets_max = 0;
1538 i_packets = c->i_depth;
1539 i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000 + 187 ) / 188;
1540 i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000 + 187 ) / 188;
1542 if( i_packets < i_packets_min && i_packets_min > 0 )
1545 int i_div = ( i_packets_min - i_packets ) / i_packets;
1546 int i_mod = ( i_packets_min - i_packets ) % i_packets;
1549 /* We need to pad with null packets (pid=0x1fff)
1550 * We try to melt null packets with true packets */
1552 "packets=%d but min=%d -> adding %d packets of padding",
1553 i_packets, i_packets_min, i_packets_min - i_packets );
1555 BufferChainInit( c );
1556 while( ( p_pk = BufferChainGet( &s ) ) )
1560 BufferChainAppend( c, p_pk );
1562 i_null = i_div + ( i_rest + i_mod ) / i_packets;
1564 for( i = 0; i < i_null; i++ )
1568 p_null = sout_BufferNew( p_mux->p_sout, 188 );
1569 p_null->p_buffer[0] = 0x47;
1570 p_null->p_buffer[1] = 0x1f;
1571 p_null->p_buffer[2] = 0xff;
1572 p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
1573 memset( &p_null->p_buffer[4], 0, 184 );
1574 p_sys->i_null_continuity_counter =
1575 ( p_sys->i_null_continuity_counter + 1 ) % 16;
1577 BufferChainAppend( c, p_null );
1580 i_rest = ( i_rest + i_mod ) % i_packets;
1583 else if( i_packets > i_packets_max && i_packets_max > 0 )
1588 /* Arg, we need to drop packets, I don't do something clever (like
1589 * dropping complete pid, b frames, ... ), I just get the right amount
1590 * of packets and discard the others */
1592 "packets=%d but max=%d -> removing %d packets -> stream broken",
1593 i_packets, i_packets_max, i_packets - i_packets_max );
1595 BufferChainInit( c );
1596 for( i = 0; i < i_packets_max; i++ )
1598 BufferChainAppend( c, BufferChainGet( &s ) );
1601 while( ( p_pk = BufferChainGet( &s ) ) )
1603 sout_BufferDelete( p_mux->p_sout, p_pk );
1609 static void PEStoTS( sout_instance_t *p_sout,
1610 sout_buffer_chain_t *c, block_t *p_pes,
1611 ts_stream_t *p_stream )
1617 /* get PES total size */
1618 i_size = p_pes->i_buffer;
1619 p_data = p_pes->p_buffer;
1621 b_new_pes = VLC_TRUE;
1625 int b_adaptation_field;
1629 p_ts = block_New( p_sout, 188 );
1632 * 1b transport_error_indicator
1633 * 1b payload_unit_start
1634 * 1b transport_priority
1636 * 2b transport_scrambling_control
1637 * 2b if adaptation_field 0x03 else 0x01
1638 * 4b continuity_counter
1641 i_copy = __MIN( i_size, 184 );
1642 b_adaptation_field = i_size < 184 ? VLC_TRUE : VLC_FALSE;
1644 p_ts->p_buffer[0] = 0x47;
1645 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
1646 ( ( p_stream->i_pid >> 8 )&0x1f );
1647 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1648 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
1649 p_stream->i_continuity_counter;
1651 b_new_pes = VLC_FALSE;
1652 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1654 if( b_adaptation_field )
1656 int i_stuffing = 184 - i_copy;
1659 p_ts->p_buffer[4] = i_stuffing - 1;
1660 if( i_stuffing > 1 )
1662 p_ts->p_buffer[5] = 0x00;
1663 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1665 p_ts->p_buffer[i] = 0xff;
1670 memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
1674 BufferChainAppend( c, p_ts );
1678 block_t *p_next = p_pes->p_next;
1680 p_pes->p_next = NULL;
1681 block_Release( p_pes );
1682 if( p_next == NULL )
1686 b_new_pes = VLC_TRUE;
1688 i_size = p_pes->i_buffer;
1689 p_data = p_pes->p_buffer;
1696 static block_t *WritePSISection( sout_instance_t *p_sout,
1697 dvbpsi_psi_section_t* p_section )
1699 block_t *p_psi, *p_first = NULL;
1706 i_size = (uint32_t)( p_section->p_payload_end - p_section->p_data )+
1707 ( p_section->b_syntax_indicator ? 4 : 0 );
1709 p_psi = block_New( p_sout, i_size + 1 );
1712 p_psi->i_length = 0;
1713 p_psi->i_buffer = i_size + 1;
1715 p_psi->p_buffer[0] = 0; // pointer
1716 memcpy( p_psi->p_buffer + 1,
1720 block_ChainAppend( &p_first, p_psi );
1722 p_section = p_section->p_next;
1728 static void GetPAT( sout_mux_t *p_mux,
1729 sout_buffer_chain_t *c )
1731 sout_mux_sys_t *p_sys = p_mux->p_sys;
1734 dvbpsi_psi_section_t *p_section;
1736 dvbpsi_InitPAT( &pat, p_sys->i_tsid, p_sys->i_pat_version_number,
1737 1 ); // b_current_next
1738 /* add all program (only one) */
1739 dvbpsi_PATAddProgram( &pat,
1741 p_sys->pmt.i_pid ); // i_pid
1743 p_section = dvbpsi_GenPATSections( &pat,
1744 0 ); // max program per section
1746 p_pat = WritePSISection( p_mux->p_sout, p_section );
1748 PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
1750 dvbpsi_DeletePSISections( p_section );
1751 dvbpsi_EmptyPAT( &pat );
1754 static uint32_t GetDescriptorLength24b( int i_length )
1756 uint32_t i_l1, i_l2, i_l3;
1758 i_l1 = i_length&0x7f;
1759 i_l2 = ( i_length >> 7 )&0x7f;
1760 i_l3 = ( i_length >> 14 )&0x7f;
1762 return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
1765 static void GetPMT( sout_mux_t *p_mux,
1766 sout_buffer_chain_t *c )
1768 sout_mux_sys_t *p_sys = p_mux->p_sys;
1772 dvbpsi_pmt_es_t *p_es;
1773 dvbpsi_psi_section_t *p_section;
1777 dvbpsi_InitPMT( &pmt,
1778 0x01, // program number
1779 p_sys->i_pmt_version_number,
1780 1, // b_current_next
1783 if( p_sys->i_mpeg4_streams > 0 )
1787 bits_buffer_t bits_fix_IOD;
1789 /* Make valgrind happy : it works at byte level not bit one so
1790 * bit_write confuse it (but DON'T CHANGE the way that bit_write is
1791 * working (needed when fixing some bits) */
1792 memset( iod, 0, 4096 );
1794 bits_initwrite( &bits, 4096, iod );
1796 bits_write( &bits, 8, 0x01 );
1797 // InitialObjectDescriptor
1798 bits_align( &bits );
1799 bits_write( &bits, 8, 0x02 ); // tag
1800 bits_fix_IOD = bits; // save states to fix length later
1801 bits_write( &bits, 24,
1802 GetDescriptorLength24b( 0 ) ); // variable length (fixed later)
1803 bits_write( &bits, 10, 0x01 ); // ObjectDescriptorID
1804 bits_write( &bits, 1, 0x00 ); // URL Flag
1805 bits_write( &bits, 1, 0x00 ); // includeInlineProfileLevelFlag
1806 bits_write( &bits, 4, 0x0f ); // reserved
1807 bits_write( &bits, 8, 0xff ); // ODProfile (no ODcapability )
1808 bits_write( &bits, 8, 0xff ); // sceneProfile
1809 bits_write( &bits, 8, 0xfe ); // audioProfile (unspecified)
1810 bits_write( &bits, 8, 0xfe ); // visualProfile( // )
1811 bits_write( &bits, 8, 0xff ); // graphicProfile (no )
1812 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1814 ts_stream_t *p_stream;
1815 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1817 if( p_stream->i_stream_id == 0xfa ||
1818 p_stream->i_stream_id == 0xfb ||
1819 p_stream->i_stream_id == 0xfe )
1821 bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
1823 bits_align( &bits );
1824 bits_write( &bits, 8, 0x03 ); // ES_DescrTag
1825 bits_fix_ESDescr = bits;
1826 bits_write( &bits, 24,
1827 GetDescriptorLength24b( 0 ) ); // variable size
1828 bits_write( &bits, 16, p_stream->i_es_id );
1829 bits_write( &bits, 1, 0x00 ); // streamDependency
1830 bits_write( &bits, 1, 0x00 ); // URL Flag
1831 bits_write( &bits, 1, 0x00 ); // OCRStreamFlag
1832 bits_write( &bits, 5, 0x1f ); // streamPriority
1834 // DecoderConfigDesciptor
1835 bits_align( &bits );
1836 bits_write( &bits, 8, 0x04 ); // DecoderConfigDescrTag
1837 bits_fix_Decoder = bits;
1838 bits_write( &bits, 24, GetDescriptorLength24b( 0 ) );
1839 if( p_stream->i_stream_type == 0x10 )
1841 bits_write( &bits, 8, 0x20 ); // Visual 14496-2
1842 bits_write( &bits, 6, 0x04 ); // VisualStream
1844 else if( p_stream->i_stream_type == 0x11 )
1846 bits_write( &bits, 8, 0x40 ); // Audio 14496-3
1847 bits_write( &bits, 6, 0x05 ); // AudioStream
1849 else if( p_stream->i_stream_type == 0x12 &&
1850 p_stream->i_codec == VLC_FOURCC('s','u','b','t') )
1852 bits_write( &bits, 8, 0x0B ); // Text Stream
1853 bits_write( &bits, 6, 0x04 ); // VisualStream
1857 bits_write( &bits, 8, 0x00 );
1858 bits_write( &bits, 6, 0x00 );
1860 msg_Err( p_mux->p_sout,"Unsupported stream_type => "
1863 bits_write( &bits, 1, 0x00 ); // UpStream
1864 bits_write( &bits, 1, 0x01 ); // reserved
1865 bits_write( &bits, 24, 1024 * 1024 ); // bufferSizeDB
1866 bits_write( &bits, 32, 0x7fffffff ); // maxBitrate
1867 bits_write( &bits, 32, 0 ); // avgBitrate
1869 if( p_stream->i_decoder_specific_info > 0 )
1872 // DecoderSpecificInfo
1873 bits_align( &bits );
1874 bits_write( &bits, 8, 0x05 ); // tag
1875 bits_write( &bits, 24, GetDescriptorLength24b(
1876 p_stream->i_decoder_specific_info ) );
1877 for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
1879 bits_write( &bits, 8,
1880 ((uint8_t*)p_stream->p_decoder_specific_info)[i] );
1883 /* fix Decoder length */
1884 bits_write( &bits_fix_Decoder, 24,
1885 GetDescriptorLength24b( bits.i_data -
1886 bits_fix_Decoder.i_data - 3 ) );
1888 /* SLConfigDescriptor : predifined (0x01) */
1889 bits_align( &bits );
1890 bits_write( &bits, 8, 0x06 ); // tag
1891 bits_write( &bits, 24, GetDescriptorLength24b( 8 ) );
1892 bits_write( &bits, 8, 0x01 ); // predefined
1893 bits_write( &bits, 1, 0 ); // durationFlag
1894 bits_write( &bits, 32, 0 ); // OCRResolution
1895 bits_write( &bits, 8, 0 ); // OCRLength
1896 bits_write( &bits, 8, 0 ); // InstantBitrateLength
1897 bits_align( &bits );
1899 /* fix ESDescr length */
1900 bits_write( &bits_fix_ESDescr, 24,
1901 GetDescriptorLength24b( bits.i_data -
1902 bits_fix_ESDescr.i_data - 3 ) );
1905 bits_align( &bits );
1906 /* fix IOD length */
1907 bits_write( &bits_fix_IOD, 24,
1908 GetDescriptorLength24b( bits.i_data -
1909 bits_fix_IOD.i_data - 3 ) );
1910 dvbpsi_PMTAddDescriptor( &pmt, 0x1d, bits.i_data, bits.p_data );
1913 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1915 ts_stream_t *p_stream;
1917 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1919 p_es = dvbpsi_PMTAddES( &pmt, p_stream->i_stream_type,
1921 if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
1926 es_id[0] = (p_stream->i_es_id >> 8)&0xff;
1927 es_id[1] = (p_stream->i_es_id)&0xff;
1928 dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
1930 else if( p_stream->i_stream_type == 0xa0 )
1933 int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
1935 /* private DIV3 descripor */
1936 memcpy( &data[0], &p_stream->i_bih_codec, 4 );
1937 data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
1938 data[5] = ( p_stream->i_bih_width )&0xff;
1939 data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
1940 data[7] = ( p_stream->i_bih_height )&0xff;
1941 data[8] = ( i_extra >> 8 )&0xff;
1942 data[9] = ( i_extra )&0xff;
1945 memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
1948 /* 0xa0 is private */
1949 dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
1951 else if( p_stream->i_stream_type == 0x81 )
1953 uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
1955 /* "registration" descriptor : "AC-3" */
1956 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
1958 else if( p_stream->i_codec == VLC_FOURCC('d','t','s',' ') )
1960 /* DTS registration descriptor (ETSI TS 101 154 Annex F) */
1962 /* DTS format identifier, frame size 1024 - FIXME */
1963 uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
1964 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
1966 else if( p_stream->i_codec == VLC_FOURCC('t','e','l','x') )
1968 dvbpsi_PMTESAddDescriptor( p_es, 0x56,
1969 p_stream->i_decoder_specific_info,
1970 p_stream->p_decoder_specific_info );
1972 #ifdef _DVBPSI_DR_59_H_
1973 else if( p_stream->i_codec == VLC_FOURCC('d','v','b','s') )
1976 dvbpsi_subtitling_dr_t descr;
1977 dvbpsi_subtitle_t sub;
1978 dvbpsi_descriptor_t *p_descr;
1980 memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
1981 sub.i_subtitling_type = 0x10; /* no aspect-ratio criticality */
1982 sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
1983 sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
1985 descr.i_subtitles_number = 1;
1986 descr.p_subtitle[0] = sub;
1988 p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
1989 /* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
1990 dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
1991 p_descr->i_length, p_descr->p_data );
1994 #endif /* _DVBPSI_DR_59_H_ */
1996 if( p_stream->lang[0] != 0 )
2000 /* I construct the content myself, way faster than looking at
2001 * over complicated/mind broken libdvbpsi way */
2002 data[0] = p_stream->lang[0];
2003 data[1] = p_stream->lang[1];
2004 data[2] = p_stream->lang[2];
2005 data[3] = 0x00; /* audio type: 0x00 undefined */
2007 dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4, data );
2011 p_section = dvbpsi_GenPMTSections( &pmt );
2013 p_pmt = WritePSISection( p_mux->p_sout, p_section );
2015 PEStoTS( p_mux->p_sout, c, p_pmt, &p_sys->pmt );
2017 dvbpsi_DeletePSISections( p_section );
2018 dvbpsi_EmptyPMT( &pmt );