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",
184 } sout_buffer_chain_t;
186 static inline void BufferChainInit ( sout_buffer_chain_t *c )
190 c->pp_last = &c->p_first;
192 static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
202 c->pp_last = &b->p_next;
204 static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
206 block_t *b = c->p_first;
211 c->p_first = b->p_next;
213 if( c->p_first == NULL )
215 c->pp_last = &c->p_first;
222 static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
224 block_t *b = c->p_first;
228 static inline void BufferChainClean( sout_instance_t *p_sout,
229 sout_buffer_chain_t *c )
233 while( ( b = BufferChainGet( c ) ) )
237 BufferChainInit( c );
240 typedef struct ts_stream_t
243 vlc_fourcc_t i_codec;
247 int i_continuity_counter;
249 /* to be used for carriege of DIV3 */
250 vlc_fourcc_t i_bih_codec;
251 int i_bih_width, i_bih_height;
253 /* Specific to mpeg4 in mpeg2ts */
256 int i_decoder_specific_info;
257 uint8_t *p_decoder_specific_info;
259 /* language is iso639-2T */
262 sout_buffer_chain_t chain_pes;
264 mtime_t i_pes_length;
266 vlc_bool_t b_key_frame;
270 struct sout_mux_sys_t
273 sout_input_t *p_pcr_input;
281 int i_pid_free; // first usable pid
284 int i_pat_version_number;
287 int i_pmt_version_number;
288 ts_stream_t pmt; // Up to now only one program
292 int i_null_continuity_counter; /* Needed ? */
294 /* for TS building */
295 int64_t i_bitrate_min;
296 int64_t i_bitrate_max;
298 int64_t i_shaping_delay;
303 vlc_bool_t b_use_key_frames;
305 mtime_t i_pcr; /* last PCR emited */
308 vlc_bool_t b_crypt_audio;
312 /* Reserve a pid and return it */
313 static int AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
316 if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
318 i_pid = p_sys->i_pid_video;
319 p_sys->i_pid_video = 0;
321 else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
323 i_pid = p_sys->i_pid_audio;
324 p_sys->i_pid_audio = 0;
326 else if ( i_cat == SPU_ES && p_sys->i_pid_spu )
328 i_pid = p_sys->i_pid_spu;
329 p_sys->i_pid_spu = 0;
333 i_pid = ++p_sys->i_pid_free;
338 /*****************************************************************************
340 *****************************************************************************/
341 static int Control ( sout_mux_t *, int, va_list );
342 static int AddStream( sout_mux_t *, sout_input_t * );
343 static int DelStream( sout_mux_t *, sout_input_t * );
344 static int Mux ( sout_mux_t * );
346 static void TSSchedule ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
347 mtime_t i_pcr_length, mtime_t i_pcr_dts );
348 static void TSDate ( 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 GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
351 static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
353 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, vlc_bool_t b_pcr );
354 static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
356 static void PEStoTS ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
358 /*****************************************************************************
360 *****************************************************************************/
361 static int Open( vlc_object_t *p_this )
363 sout_mux_t *p_mux =(sout_mux_t*)p_this;
364 sout_mux_sys_t *p_sys;
367 msg_Dbg( p_mux, "Open" );
368 sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
370 p_sys = malloc( sizeof( sout_mux_sys_t ) );
372 p_mux->pf_control = Control;
373 p_mux->pf_addstream = AddStream;
374 p_mux->pf_delstream = DelStream;
376 p_mux->p_sys = p_sys;
378 srand( (uint32_t)mdate() );
380 p_sys->i_audio_bound = 0;
381 p_sys->i_video_bound = 0;
383 p_sys->i_pat_version_number = rand() % 32;
384 p_sys->pat.i_pid = 0;
385 p_sys->pat.i_continuity_counter = 0;
387 var_Get( p_mux, SOUT_CFG_PREFIX "tsid", &val );
389 p_sys->i_tsid = val.i_int;
391 p_sys->i_tsid = rand() % 65536;
392 p_sys->i_pmt_version_number = rand() % 32;
393 p_sys->pmt.i_continuity_counter = 0;
395 var_Get( p_mux, SOUT_CFG_PREFIX "pid-pmt", &val );
398 p_sys->pmt.i_pid = val.i_int;
402 p_sys->pmt.i_pid = 0x42;
405 p_sys->i_pid_free = p_sys->pmt.i_pid + 1;
407 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
408 p_sys->i_pid_video = val.i_int;
409 if ( p_sys->i_pid_video > p_sys->i_pid_free )
411 p_sys->i_pid_free = p_sys->i_pid_video + 1;
414 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
415 p_sys->i_pid_audio = val.i_int;
416 if ( p_sys->i_pid_audio > p_sys->i_pid_free )
418 p_sys->i_pid_free = p_sys->i_pid_audio + 1;
421 var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
422 p_sys->i_pid_spu = val.i_int;
423 if ( p_sys->i_pid_spu > p_sys->i_pid_free )
425 p_sys->i_pid_free = p_sys->i_pid_spu + 1;
428 p_sys->i_pcr_pid = 0x1fff;
429 p_sys->p_pcr_input = NULL;
431 p_sys->i_mpeg4_streams = 0;
433 p_sys->i_null_continuity_counter = 0;
435 /* Allow to create constrained stream */
436 var_Get( p_mux, SOUT_CFG_PREFIX "bmin", &val );
437 p_sys->i_bitrate_min = val.i_int;
439 var_Get( p_mux, SOUT_CFG_PREFIX "bmax", &val );
440 p_sys->i_bitrate_max = val.i_int;
442 if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
443 p_sys->i_bitrate_min > p_sys->i_bitrate_max )
445 msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
446 "disabling bitrate control" );
447 p_sys->i_bitrate_min = 0;
448 p_sys->i_bitrate_max = 0;
450 if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
452 msg_Err( p_mux, "bmin and bmax no more supported "
453 "(if you need them report it)" );
456 var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
457 p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
458 if( p_sys->i_shaping_delay <= 0 )
461 "invalid shaping ("I64Fd"ms) resetting to 200ms",
462 p_sys->i_shaping_delay / 1000 );
463 p_sys->i_shaping_delay = 200000;
466 var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
467 p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
468 if( p_sys->i_pcr_delay <= 0 ||
469 p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
472 "invalid pcr delay ("I64Fd"ms) resetting to 30ms",
473 p_sys->i_pcr_delay / 1000 );
474 p_sys->i_pcr_delay = 30000;
477 var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
478 p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
480 msg_Dbg( p_mux, "shaping="I64Fd" pcr="I64Fd" dts_delay="I64Fd,
481 p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
483 var_Get( p_mux, SOUT_CFG_PREFIX "use-key-frames", &val );
484 p_sys->b_use_key_frames = val.b_bool;
486 /* for TS generation */
490 var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
493 char *psz = val.psz_string;
496 if( psz[0] == '0' && ( psz[1] == 'x' || psz[1] == 'X' ) )
500 if( strlen( psz ) != 16 )
502 msg_Dbg( p_mux, "invalid csa ck (it must be 16 chars long)" );
506 uint64_t i_ck = strtoull( psz, NULL, 16 );
510 for( i = 0; i < 8; i++ )
512 ck[i] = ( i_ck >> ( 56 - 8*i) )&0xff;
515 msg_Dbg( p_mux, "using CSA scrambling with ck=%x:%x:%x:%x:%x:%x:%x:%x",
516 ck[0], ck[1], ck[2], ck[3], ck[4], ck[5], ck[6], ck[7] );
518 p_sys->csa = csa_New();
519 csa_SetCW( p_sys->csa, ck, ck );
522 if( val.psz_string ) free( val.psz_string );
524 var_Get( p_mux, SOUT_CFG_PREFIX "crypt-audio", &val );
525 p_sys->b_crypt_audio = val.b_bool;
530 /*****************************************************************************
532 *****************************************************************************/
533 static void Close( vlc_object_t * p_this )
535 sout_mux_t *p_mux = (sout_mux_t*)p_this;
536 sout_mux_sys_t *p_sys = p_mux->p_sys;
538 msg_Dbg( p_mux, "Close" );
541 csa_Delete( p_sys->csa );
547 /*****************************************************************************
549 *****************************************************************************/
550 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
557 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
558 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
562 case MUX_GET_ADD_STREAM_WAIT:
563 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
564 *pb_bool = VLC_FALSE;
568 ppsz = (char**)va_arg( args, char ** );
569 *ppsz = strdup( "video/mpeg" ); /* FIXME not sure */
577 /*****************************************************************************
578 * AddStream: called for each stream addition
579 *****************************************************************************/
580 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
582 sout_mux_sys_t *p_sys = p_mux->p_sys;
583 ts_stream_t *p_stream;
585 p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
587 /* Init this new stream */
588 p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
589 p_stream->i_codec = p_input->p_fmt->i_codec;
590 p_stream->i_continuity_counter = 0;
591 p_stream->i_decoder_specific_info = 0;
592 p_stream->p_decoder_specific_info = NULL;
594 msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
595 (char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
597 /* All others fields depand on codec */
598 switch( p_input->p_fmt->i_cat )
601 switch( p_input->p_fmt->i_codec )
603 case VLC_FOURCC( 'm', 'p','g', 'v' ):
604 /* TODO: do we need to check MPEG-I/II ? */
605 p_stream->i_stream_type = 0x02;
606 p_stream->i_stream_id = 0xe0;
608 case VLC_FOURCC( 'm', 'p','4', 'v' ):
609 p_stream->i_stream_type = 0x10;
610 p_stream->i_stream_id = 0xfa;
611 p_sys->i_mpeg4_streams++;
612 p_stream->i_es_id = p_stream->i_pid;
614 case VLC_FOURCC( 'h', '2','6', '4' ):
615 p_stream->i_stream_type = 0x1b;
616 p_stream->i_stream_id = 0xe0;
618 /* XXX dirty dirty but somebody want that:
619 * using crapy MS-codec XXX */
620 /* I didn't want to do that :P */
621 case VLC_FOURCC( 'H', '2', '6', '3' ):
622 case VLC_FOURCC( 'I', '2', '6', '3' ):
623 case VLC_FOURCC( 'W', 'M', 'V', '3' ):
624 case VLC_FOURCC( 'W', 'M', 'V', '2' ):
625 case VLC_FOURCC( 'W', 'M', 'V', '1' ):
626 case VLC_FOURCC( 'D', 'I', 'V', '3' ):
627 case VLC_FOURCC( 'D', 'I', 'V', '2' ):
628 case VLC_FOURCC( 'D', 'I', 'V', '1' ):
629 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
630 p_stream->i_stream_type = 0xa0; // private
631 p_stream->i_stream_id = 0xa0; // beurk
632 p_stream->i_bih_codec = p_input->p_fmt->i_codec;
633 p_stream->i_bih_width = p_input->p_fmt->video.i_width;
634 p_stream->i_bih_height = p_input->p_fmt->video.i_height;
640 p_sys->i_video_bound++;
644 switch( p_input->p_fmt->i_codec )
646 case VLC_FOURCC( 'm', 'p','g', 'a' ):
647 p_stream->i_stream_type =
648 p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
649 p_stream->i_stream_id = 0xc0;
651 case VLC_FOURCC( 'a', '5','2', ' ' ):
652 p_stream->i_stream_type = 0x81;
653 p_stream->i_stream_id = 0xbd;
655 case VLC_FOURCC( 'l', 'p','c', 'm' ):
656 p_stream->i_stream_type = 0x83;
657 p_stream->i_stream_id = 0xbd;
659 case VLC_FOURCC( 'd', 't','s', ' ' ):
660 p_stream->i_stream_type = 0x06;
661 p_stream->i_stream_id = 0xbd;
664 case VLC_FOURCC( 'm', 'p','4', 'a' ):
665 p_stream->i_stream_type = 0x11;
666 p_stream->i_stream_id = 0xfa;
667 p_sys->i_mpeg4_streams++;
668 p_stream->i_es_id = p_stream->i_pid;
674 p_sys->i_audio_bound++;
678 switch( p_input->p_fmt->i_codec )
680 case VLC_FOURCC( 's', 'p','u', ' ' ):
681 p_stream->i_stream_type = 0x82;
682 p_stream->i_stream_id = 0xbd;
684 case VLC_FOURCC( 's', 'u','b', 't' ):
685 p_stream->i_stream_type = 0x12;
686 p_stream->i_stream_id = 0xfa;
687 p_sys->i_mpeg4_streams++;
688 p_stream->i_es_id = p_stream->i_pid;
690 case VLC_FOURCC('d','v','b','s'):
691 p_stream->i_stream_type = 0x06;
692 p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
693 p_stream->i_stream_id = 0xbd;
695 case VLC_FOURCC('t','e','l','x'):
696 p_stream->i_stream_type = 0x06;
697 p_stream->i_stream_id = 0xbd; /* FIXME */
712 p_stream->lang[2] = '\0';
713 if( p_input->p_fmt->psz_language )
715 char *psz = p_input->p_fmt->psz_language;
716 const iso639_lang_t *pl = NULL;
718 if( strlen( psz ) == 2 )
720 pl = GetLang_1( psz );
722 else if( strlen( psz ) == 3 )
724 pl = GetLang_2B( psz );
725 if( !strcmp( pl->psz_iso639_1, "??" ) )
727 pl = GetLang_2T( psz );
730 if( pl && strcmp( pl->psz_iso639_1, "??" ) )
732 p_stream->lang[0] = pl->psz_iso639_2T[0];
733 p_stream->lang[1] = pl->psz_iso639_2T[1];
734 p_stream->lang[2] = pl->psz_iso639_2T[2];
736 msg_Dbg( p_mux, " - lang=%c%c%c",
737 p_stream->lang[0], p_stream->lang[1], p_stream->lang[2] );
742 /* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
743 p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
744 if( p_stream->i_decoder_specific_info > 0 )
746 p_stream->p_decoder_specific_info =
747 malloc( p_stream->i_decoder_specific_info );
748 memcpy( p_stream->p_decoder_specific_info,
749 p_input->p_fmt->p_extra,
750 p_input->p_fmt->i_extra );
753 /* Create decoder specific info for subt */
754 if( p_stream->i_codec == VLC_FOURCC( 's', 'u','b', 't' ) )
758 p_stream->i_decoder_specific_info = 55;
759 p_stream->p_decoder_specific_info = p =
760 malloc( p_stream->i_decoder_specific_info );
762 p[0] = 0x10; /* textFormat, 0x10 for 3GPP TS 26.245 */
763 p[1] = 0x00; /* flags: 1b: associated video info flag
767 p[2] = 52; /* remaining size */
771 p[0] = p[1] = p[2] = p[3] = 0; p+=4; /* display flags */
772 *p++ = 0; /* horizontal justification (-1: left, 0 center, 1 right) */
773 *p++ = 1; /* vertical justification (-1: top, 0 center, 1 bottom) */
775 p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
776 *p++ = 0xff; /* background a */
778 p[0] = p[1] = 0; p += 2; /* text box top */
779 p[0] = p[1] = 0; p += 2; /* text box left */
780 p[0] = p[1] = 0; p += 2; /* text box bottom */
781 p[0] = p[1] = 0; p += 2; /* text box right */
783 p[0] = p[1] = 0; p += 2; /* start char */
784 p[0] = p[1] = 0; p += 2; /* end char */
785 p[0] = p[1] = 0; p += 2; /* default font id */
787 *p++ = 0; /* font style flags */
788 *p++ = 12; /* font size */
790 p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
791 *p++ = 0x00; /* foreground a */
793 p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
794 memcpy( p, "ftab", 4 ); p += 4;
795 *p++ = 0; *p++ = 1; /* entry count */
796 p[0] = p[1] = 0; p += 2; /* font id */
797 *p++ = 9; /* font name length */
798 memcpy( p, "Helvetica", 9 ); /* font name */
802 BufferChainInit( &p_stream->chain_pes );
803 p_stream->i_pes_dts = 0;
804 p_stream->i_pes_length = 0;
805 p_stream->i_pes_used = 0;
806 p_stream->b_key_frame = 0;
808 /* We only change PMT version (PAT isn't changed) */
809 p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
812 if( p_input->p_fmt->i_cat != SPU_ES &&
813 ( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
815 if( p_sys->p_pcr_input )
817 /* There was already a PCR stream, so clean context */
820 p_sys->i_pcr_pid = p_stream->i_pid;
821 p_sys->p_pcr_input = p_input;
823 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
829 /*****************************************************************************
830 * DelStream: called before a stream deletion
831 *****************************************************************************/
832 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
834 sout_mux_sys_t *p_sys = p_mux->p_sys;
835 ts_stream_t *p_stream;
838 p_stream = (ts_stream_t*)p_input->p_sys;
839 msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
841 if( p_sys->i_pcr_pid == p_stream->i_pid )
845 /* Find a new pcr stream (Prefer Video Stream) */
846 p_sys->i_pcr_pid = 0x1fff;
847 p_sys->p_pcr_input = NULL;
848 for( i = 0; i < p_mux->i_nb_inputs; i++ )
850 if( p_mux->pp_inputs[i] == p_input )
855 if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
858 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
859 p_sys->p_pcr_input= p_mux->pp_inputs[i];
862 else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
863 p_sys->i_pcr_pid == 0x1fff )
866 ((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
867 p_sys->p_pcr_input= p_mux->pp_inputs[i];
870 if( p_sys->p_pcr_input )
872 /* Empty TS buffer */
875 msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
878 /* Empty all data in chain_pes */
879 BufferChainClean( p_mux->p_sout, &p_stream->chain_pes );
881 if( p_stream->p_decoder_specific_info )
883 free( p_stream->p_decoder_specific_info );
885 if( p_stream->i_stream_id == 0xfa ||
886 p_stream->i_stream_id == 0xfb ||
887 p_stream->i_stream_id == 0xfe )
889 p_sys->i_mpeg4_streams--;
892 var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
895 int i_pid_video = val.i_int;
896 if ( i_pid_video == p_stream->i_pid )
898 p_sys->i_pid_video = i_pid_video;
899 msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
902 var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
905 int i_pid_audio = val.i_int;
906 if ( i_pid_audio == p_stream->i_pid )
908 p_sys->i_pid_audio = i_pid_audio;
909 msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
912 var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
915 int i_pid_spu = val.i_int;
916 if ( i_pid_spu == p_stream->i_pid )
918 p_sys->i_pid_spu = i_pid_spu;
919 msg_Dbg( p_mux, "freeing spu PID %d", i_pid_spu );
924 /* We only change PMT version (PAT isn't changed) */
925 p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
930 /*****************************************************************************
931 * Mux: Call each time there is new data for at least one stream
932 *****************************************************************************
934 *****************************************************************************/
935 static int Mux( sout_mux_t *p_mux )
937 sout_mux_sys_t *p_sys = p_mux->p_sys;
938 ts_stream_t *p_pcr_stream;
940 if( p_sys->i_pcr_pid == 0x1fff )
942 msg_Dbg( p_mux, "waiting for PCR streams" );
946 p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
950 sout_buffer_chain_t chain_ts;
954 mtime_t i_pcr_length;
955 mtime_t i_shaping_delay;
958 if( p_pcr_stream->b_key_frame )
960 i_shaping_delay = p_pcr_stream->i_pes_length;
964 i_shaping_delay = p_sys->i_shaping_delay;
967 /* 1: get enough PES packet for all input */
970 vlc_bool_t b_ok = VLC_TRUE;
973 /* Accumulate enough data in the pcr stream (>i_shaping_delay) */
974 /* Accumulate enough data in all other stream ( >= length of pcr)*/
975 for( i = 0; i < p_mux->i_nb_inputs; i++ )
977 sout_input_t *p_input = p_mux->pp_inputs[i];
978 ts_stream_t *p_stream = (ts_stream_t*)p_input->p_sys;
979 int64_t i_spu_delay = 0;
981 if( ( p_stream == p_pcr_stream &&
982 p_stream->i_pes_length < i_shaping_delay ) ||
983 p_stream->i_pes_dts + p_stream->i_pes_length <
984 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
987 if( p_input->p_fifo->i_depth <= 1 )
989 if( p_input->p_fmt->i_cat == AUDIO_ES ||
990 p_input->p_fmt->i_cat == VIDEO_ES )
992 /* We need more data */
995 else if( p_input->p_fifo->i_depth <= 0 )
997 /* spu, only one packet is needed */
1002 /* Don't mux the SPU yet if it is too early */
1003 block_t *p_spu = block_FifoShow( p_input->p_fifo );
1006 p_spu->i_dts - p_pcr_stream->i_pes_dts;
1008 if( i_spu_delay > i_shaping_delay &&
1009 i_spu_delay < I64C(100000000) )
1012 if ( i_spu_delay >= I64C(100000000)
1013 || i_spu_delay < 10000 )
1015 BufferChainClean( p_mux->p_sout,
1016 &p_stream->chain_pes );
1017 p_stream->i_pes_dts = 0;
1018 p_stream->i_pes_used = 0;
1019 p_stream->i_pes_length = 0;
1026 p_data = block_FifoGet( p_input->p_fifo );
1027 if( p_input->p_fifo->i_depth > 0 &&
1028 p_input->p_fmt->i_cat != SPU_ES )
1030 block_t *p_next = block_FifoShow( p_input->p_fifo );
1031 p_data->i_length = p_next->i_dts - p_data->i_dts;
1034 p_data->i_length = 1000;
1036 if( ( p_pcr_stream->i_pes_dts > 0 &&
1037 p_data->i_dts - 10000000 > p_pcr_stream->i_pes_dts +
1038 p_pcr_stream->i_pes_length ) ||
1039 p_data->i_dts < p_stream->i_pes_dts ||
1040 ( p_stream->i_pes_dts > 0 &&
1041 p_input->p_fmt->i_cat != SPU_ES &&
1042 p_data->i_dts - 10000000 > p_stream->i_pes_dts +
1043 p_stream->i_pes_length ) )
1045 msg_Warn( p_mux, "packet with too strange dts "
1046 "(dts="I64Fd",old="I64Fd",pcr="I64Fd")",
1047 p_data->i_dts, p_stream->i_pes_dts,
1048 p_pcr_stream->i_pes_dts );
1049 block_Release( p_data );
1051 BufferChainClean( p_mux->p_sout,
1052 &p_stream->chain_pes );
1053 p_stream->i_pes_dts = 0;
1054 p_stream->i_pes_used = 0;
1055 p_stream->i_pes_length = 0;
1057 if( p_input->p_fmt->i_cat != SPU_ES )
1059 BufferChainClean( p_mux->p_sout,
1060 &p_pcr_stream->chain_pes );
1061 p_pcr_stream->i_pes_dts = 0;
1062 p_pcr_stream->i_pes_used = 0;
1063 p_pcr_stream->i_pes_length = 0;
1068 int i_header_size = 0;
1069 int b_data_alignment = 0;
1070 if( p_input->p_fmt->i_cat == SPU_ES )
1072 if( p_input->p_fmt->i_codec ==
1073 VLC_FOURCC('s','u','b','t') )
1075 /* Prepend header */
1076 p_data = block_Realloc( p_data, 2,
1078 p_data->p_buffer[0] =
1079 ( (p_data->i_buffer - 2) >> 8) & 0xff;
1080 p_data->p_buffer[1] =
1081 ( (p_data->i_buffer - 2) ) & 0xff;
1083 /* remove trailling \0 if any */
1084 if( p_data->i_buffer > 2 &&
1085 p_data->p_buffer[p_data->i_buffer -1] ==
1089 /* Append a empty sub (sub text only) */
1090 if( p_data->i_length > 0 &&
1091 !( p_data->i_buffer == 1 &&
1092 *p_data->p_buffer == ' ' ) )
1094 block_t *p_spu = block_New( p_mux, 3 );
1096 p_spu->i_dts = p_spu->i_pts =
1097 p_data->i_dts + p_data->i_length;
1098 p_spu->i_length = 1000;
1100 p_spu->p_buffer[0] = 0;
1101 p_spu->p_buffer[1] = 1;
1102 p_spu->p_buffer[2] = ' ';
1104 E_(EStoPES)( p_mux->p_sout, &p_spu, p_spu,
1106 p_stream->i_stream_id, 1,
1108 p_data->p_next = p_spu;
1111 else if( p_input->p_fmt->i_codec ==
1112 VLC_FOURCC('t','e','l','x') )
1115 i_header_size = 0x24;
1116 b_data_alignment = 1;
1119 else if( p_data->i_length < 0 ||
1120 p_data->i_length > 2000000 )
1122 /* FIXME choose a better value, but anyway we
1123 * should never have to do that */
1124 p_data->i_length = 1000;
1127 p_stream->i_pes_length += p_data->i_length;
1128 if( p_stream->i_pes_dts == 0 )
1130 p_stream->i_pes_dts = p_data->i_dts;
1133 /* Convert to pes */
1134 if( p_stream->i_stream_id == 0xa0 &&
1135 p_data->i_pts <= 0 )
1137 /* XXX yes I know, it's awfull, but it's needed,
1138 * so don't remove it ... */
1139 p_data->i_pts = p_data->i_dts;
1141 E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
1142 p_input->p_fmt, p_stream->i_stream_id,
1143 1, b_data_alignment, i_header_size );
1145 BufferChainAppend( &p_stream->chain_pes, p_data );
1147 if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
1148 && (p_data->i_flags & BLOCK_FLAG_TYPE_I)
1149 && !(p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME)
1150 && (p_stream->i_pes_length > 400000) )
1152 i_shaping_delay = p_stream->i_pes_length;
1153 p_stream->b_key_frame = 1;
1166 i_pcr_dts = p_pcr_stream->i_pes_dts;
1167 i_pcr_length = p_pcr_stream->i_pes_length;
1168 p_pcr_stream->b_key_frame = 0;
1170 /* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
1171 /* 2: calculate non accurate total size of muxed ts */
1173 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1175 ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1178 /* False for pcr stream but it will be enough to do PCR algo */
1179 for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
1180 p_pes = p_pes->p_next )
1182 int i_size = p_pes->i_buffer;
1183 if( p_pes->i_dts + p_pes->i_length >
1184 p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
1186 mtime_t i_frag = p_pcr_stream->i_pes_dts +
1187 p_pcr_stream->i_pes_length - p_pes->i_dts;
1193 i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
1195 i_packet_count += ( i_size + 183 ) / 184;
1198 /* add overhead for PCR (not really exact) */
1199 i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
1201 /* 3: mux PES into TS */
1202 BufferChainInit( &chain_ts );
1203 /* append PAT/PMT -> FIXME with big pcr delay it won't have enough pat/pmt */
1204 GetPAT( p_mux, &chain_ts);
1205 GetPMT( p_mux, &chain_ts );
1207 i_packet_count += chain_ts.i_depth;
1208 /* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
1214 ts_stream_t *p_stream;
1215 sout_input_t *p_input;
1219 /* Select stream (lowest dts) */
1220 for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
1222 p_input = p_mux->pp_inputs[i];
1223 p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
1225 if( p_stream->i_pes_dts == 0 )
1230 if( i_stream == -1 ||
1231 p_stream->i_pes_dts < i_dts )
1234 i_dts = p_stream->i_pes_dts;
1237 if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
1241 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1243 /* do we need to issue pcr */
1245 if( p_stream == p_pcr_stream &&
1246 i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
1247 p_sys->i_pcr + p_sys->i_pcr_delay )
1250 p_sys->i_pcr = i_pcr_dts + i_packet_pos *
1251 i_pcr_length / i_packet_count;
1254 /* Build the TS packet */
1255 p_ts = TSNew( p_mux, p_stream, b_pcr );
1256 if( p_sys->csa != NULL &&
1257 (p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) )
1259 p_ts->i_flags |= BLOCK_FLAG_SCRAMBLED;
1264 BufferChainAppend( &chain_ts, p_ts );
1267 /* 4: date and send */
1268 TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
1272 static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1273 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1275 sout_mux_sys_t *p_sys = p_mux->p_sys;
1276 sout_buffer_chain_t new_chain;
1277 int i_packet_count = p_chain_ts->i_depth;
1280 BufferChainInit( &new_chain );
1282 if ( i_pcr_length <= 0 )
1284 i_pcr_length = i_packet_count;
1287 for( i = 0; i < i_packet_count; i++ )
1289 block_t *p_ts = BufferChainGet( p_chain_ts );
1290 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1292 BufferChainAppend( &new_chain, p_ts );
1295 p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
1297 mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
1298 mtime_t i_cut_dts = p_ts->i_dts;
1300 p_ts = BufferChainPeek( p_chain_ts );
1302 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1303 while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
1305 p_ts = BufferChainGet( p_chain_ts );
1306 i_max_diff = i_new_dts - p_ts->i_dts;
1307 i_cut_dts = p_ts->i_dts;
1308 BufferChainAppend( &new_chain, p_ts );
1310 p_ts = BufferChainPeek( p_chain_ts );
1312 i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1314 msg_Dbg( p_mux, "adjusting rate at "I64Fd"/"I64Fd" (%d/%d)",
1315 i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
1316 p_chain_ts->i_depth );
1317 if ( new_chain.i_depth )
1318 TSDate( p_mux, &new_chain,
1319 i_cut_dts - i_pcr_dts,
1321 if ( p_chain_ts->i_depth )
1323 p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
1329 if ( new_chain.i_depth )
1330 TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
1333 static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
1334 mtime_t i_pcr_length, mtime_t i_pcr_dts )
1336 sout_mux_sys_t *p_sys = p_mux->p_sys;
1337 int i_packet_count = p_chain_ts->i_depth;
1340 if ( i_pcr_length / 1000 > 0 )
1342 int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
1343 / (uint64_t)(i_pcr_length / 1000);
1344 if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
1346 msg_Warn( p_mux, "max bitrate exceeded at "I64Fd
1347 " (%d bi/s for %d pkt in "I64Fd" us)",
1348 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1349 i_bitrate, i_packet_count, i_pcr_length);
1354 msg_Dbg( p_mux, "starting at "I64Fd
1355 " (%d bi/s for %d packets in "I64Fd" us)",
1356 i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
1357 i_bitrate, i_packet_count, i_pcr_length);
1363 /* This shouldn't happen, but happens in some rare heavy load
1364 * and packet losses conditions. */
1365 i_pcr_length = i_packet_count;
1368 /* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
1369 for( i = 0; i < i_packet_count; i++ )
1371 block_t *p_ts = BufferChainGet( p_chain_ts );
1372 mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
1374 p_ts->i_dts = i_new_dts;
1375 p_ts->i_length = i_pcr_length / i_packet_count;
1377 if( p_ts->i_flags & BLOCK_FLAG_CLOCK )
1379 /* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
1380 TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
1382 if( p_ts->i_flags & BLOCK_FLAG_SCRAMBLED )
1384 csa_Encrypt( p_sys->csa, p_ts->p_buffer, 0 );
1388 p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
1390 sout_AccessOutWrite( p_mux->p_access, p_ts );
1394 static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
1397 block_t *p_pes = p_stream->chain_pes.p_first;
1400 vlc_bool_t b_new_pes = VLC_FALSE;
1401 vlc_bool_t b_adaptation_field = VLC_FALSE;
1403 int i_payload_max = 184 - ( b_pcr ? 8 : 0 );
1406 if( p_stream->i_pes_used <= 0 )
1408 b_new_pes = VLC_TRUE;
1410 i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
1413 if( b_pcr || i_payload < i_payload_max )
1415 b_adaptation_field = VLC_TRUE;
1418 p_ts = block_New( p_mux, 188 );
1419 p_ts->i_dts = p_pes->i_dts;
1421 p_ts->p_buffer[0] = 0x47;
1422 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
1423 ( ( p_stream->i_pid >> 8 )&0x1f );
1424 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1425 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
1426 p_stream->i_continuity_counter;
1428 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1430 if( b_adaptation_field )
1436 int i_stuffing = i_payload_max - i_payload;
1438 p_ts->i_flags |= BLOCK_FLAG_CLOCK;
1440 p_ts->p_buffer[4] = 7 + i_stuffing;
1441 p_ts->p_buffer[5] = 0x10; /* flags */
1442 p_ts->p_buffer[6] = ( 0 )&0xff;
1443 p_ts->p_buffer[7] = ( 0 )&0xff;
1444 p_ts->p_buffer[8] = ( 0 )&0xff;
1445 p_ts->p_buffer[9] = ( 0 )&0xff;
1446 p_ts->p_buffer[10]= ( 0 )&0x80;
1447 p_ts->p_buffer[11]= 0;
1449 for( i = 12; i < 12 + i_stuffing; i++ )
1451 p_ts->p_buffer[i] = 0xff;
1456 int i_stuffing = i_payload_max - i_payload;
1458 p_ts->p_buffer[4] = i_stuffing - 1;
1459 if( i_stuffing > 1 )
1461 p_ts->p_buffer[5] = 0x00;
1462 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1464 p_ts->p_buffer[i] = 0xff;
1471 memcpy( &p_ts->p_buffer[188 - i_payload],
1472 &p_pes->p_buffer[p_stream->i_pes_used], i_payload );
1474 p_stream->i_pes_used += i_payload;
1475 p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
1476 p_stream->i_pes_used / p_pes->i_buffer;
1477 p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
1479 if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
1481 p_pes = BufferChainGet( &p_stream->chain_pes );
1482 block_Release( p_pes );
1484 p_pes = p_stream->chain_pes.p_first;
1487 p_stream->i_pes_dts = p_pes->i_dts;
1488 p_stream->i_pes_length = 0;
1491 p_stream->i_pes_length += p_pes->i_length;
1493 p_pes = p_pes->p_next;
1498 p_stream->i_pes_dts = 0;
1499 p_stream->i_pes_length = 0;
1501 p_stream->i_pes_used = 0;
1508 static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
1510 mtime_t i_pcr = 9 * i_dts / 100;
1512 p_ts->p_buffer[6] = ( i_pcr >> 25 )&0xff;
1513 p_ts->p_buffer[7] = ( i_pcr >> 17 )&0xff;
1514 p_ts->p_buffer[8] = ( i_pcr >> 9 )&0xff;
1515 p_ts->p_buffer[9] = ( i_pcr >> 1 )&0xff;
1516 p_ts->p_buffer[10]|= ( i_pcr << 7 )&0x80;
1520 static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
1521 mtime_t i_length, int i_bitrate_min,
1524 sout_mux_sys_t *p_sys = p_mux->p_sys;
1525 sout_buffer_chain_t s = *c;
1528 int i_packets_min = 0;
1529 int i_packets_max = 0;
1536 i_packets = c->i_depth;
1537 i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000 + 187 ) / 188;
1538 i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000 + 187 ) / 188;
1540 if( i_packets < i_packets_min && i_packets_min > 0 )
1543 int i_div = ( i_packets_min - i_packets ) / i_packets;
1544 int i_mod = ( i_packets_min - i_packets ) % i_packets;
1547 /* We need to pad with null packets (pid=0x1fff)
1548 * We try to melt null packets with true packets */
1550 "packets=%d but min=%d -> adding %d packets of padding",
1551 i_packets, i_packets_min, i_packets_min - i_packets );
1553 BufferChainInit( c );
1554 while( ( p_pk = BufferChainGet( &s ) ) )
1558 BufferChainAppend( c, p_pk );
1560 i_null = i_div + ( i_rest + i_mod ) / i_packets;
1562 for( i = 0; i < i_null; i++ )
1566 p_null = sout_BufferNew( p_mux->p_sout, 188 );
1567 p_null->p_buffer[0] = 0x47;
1568 p_null->p_buffer[1] = 0x1f;
1569 p_null->p_buffer[2] = 0xff;
1570 p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
1571 memset( &p_null->p_buffer[4], 0, 184 );
1572 p_sys->i_null_continuity_counter =
1573 ( p_sys->i_null_continuity_counter + 1 ) % 16;
1575 BufferChainAppend( c, p_null );
1578 i_rest = ( i_rest + i_mod ) % i_packets;
1581 else if( i_packets > i_packets_max && i_packets_max > 0 )
1586 /* Arg, we need to drop packets, I don't do something clever (like
1587 * dropping complete pid, b frames, ... ), I just get the right amount
1588 * of packets and discard the others */
1590 "packets=%d but max=%d -> removing %d packets -> stream broken",
1591 i_packets, i_packets_max, i_packets - i_packets_max );
1593 BufferChainInit( c );
1594 for( i = 0; i < i_packets_max; i++ )
1596 BufferChainAppend( c, BufferChainGet( &s ) );
1599 while( ( p_pk = BufferChainGet( &s ) ) )
1601 sout_BufferDelete( p_mux->p_sout, p_pk );
1607 static void PEStoTS( sout_instance_t *p_sout,
1608 sout_buffer_chain_t *c, block_t *p_pes,
1609 ts_stream_t *p_stream )
1615 /* get PES total size */
1616 i_size = p_pes->i_buffer;
1617 p_data = p_pes->p_buffer;
1619 b_new_pes = VLC_TRUE;
1623 int b_adaptation_field;
1627 p_ts = block_New( p_sout, 188 );
1630 * 1b transport_error_indicator
1631 * 1b payload_unit_start
1632 * 1b transport_priority
1634 * 2b transport_scrambling_control
1635 * 2b if adaptation_field 0x03 else 0x01
1636 * 4b continuity_counter
1639 i_copy = __MIN( i_size, 184 );
1640 b_adaptation_field = i_size < 184 ? VLC_TRUE : VLC_FALSE;
1642 p_ts->p_buffer[0] = 0x47;
1643 p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
1644 ( ( p_stream->i_pid >> 8 )&0x1f );
1645 p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
1646 p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
1647 p_stream->i_continuity_counter;
1649 b_new_pes = VLC_FALSE;
1650 p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
1652 if( b_adaptation_field )
1654 int i_stuffing = 184 - i_copy;
1657 p_ts->p_buffer[4] = i_stuffing - 1;
1658 if( i_stuffing > 1 )
1660 p_ts->p_buffer[5] = 0x00;
1661 for( i = 6; i < 6 + i_stuffing - 2; i++ )
1663 p_ts->p_buffer[i] = 0xff;
1668 memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
1672 BufferChainAppend( c, p_ts );
1676 block_t *p_next = p_pes->p_next;
1678 p_pes->p_next = NULL;
1679 block_Release( p_pes );
1680 if( p_next == NULL )
1684 b_new_pes = VLC_TRUE;
1686 i_size = p_pes->i_buffer;
1687 p_data = p_pes->p_buffer;
1694 static block_t *WritePSISection( sout_instance_t *p_sout,
1695 dvbpsi_psi_section_t* p_section )
1697 block_t *p_psi, *p_first = NULL;
1704 i_size = (uint32_t)( p_section->p_payload_end - p_section->p_data )+
1705 ( p_section->b_syntax_indicator ? 4 : 0 );
1707 p_psi = block_New( p_sout, i_size + 1 );
1710 p_psi->i_length = 0;
1711 p_psi->i_buffer = i_size + 1;
1713 p_psi->p_buffer[0] = 0; // pointer
1714 memcpy( p_psi->p_buffer + 1,
1718 block_ChainAppend( &p_first, p_psi );
1720 p_section = p_section->p_next;
1726 static void GetPAT( sout_mux_t *p_mux,
1727 sout_buffer_chain_t *c )
1729 sout_mux_sys_t *p_sys = p_mux->p_sys;
1732 dvbpsi_psi_section_t *p_section;
1734 dvbpsi_InitPAT( &pat, p_sys->i_tsid, p_sys->i_pat_version_number,
1735 1 ); // b_current_next
1736 /* add all program (only one) */
1737 dvbpsi_PATAddProgram( &pat,
1739 p_sys->pmt.i_pid ); // i_pid
1741 p_section = dvbpsi_GenPATSections( &pat,
1742 0 ); // max program per section
1744 p_pat = WritePSISection( p_mux->p_sout, p_section );
1746 PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
1748 dvbpsi_DeletePSISections( p_section );
1749 dvbpsi_EmptyPAT( &pat );
1752 static uint32_t GetDescriptorLength24b( int i_length )
1754 uint32_t i_l1, i_l2, i_l3;
1756 i_l1 = i_length&0x7f;
1757 i_l2 = ( i_length >> 7 )&0x7f;
1758 i_l3 = ( i_length >> 14 )&0x7f;
1760 return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
1763 static void GetPMT( sout_mux_t *p_mux,
1764 sout_buffer_chain_t *c )
1766 sout_mux_sys_t *p_sys = p_mux->p_sys;
1770 dvbpsi_pmt_es_t *p_es;
1771 dvbpsi_psi_section_t *p_section;
1775 dvbpsi_InitPMT( &pmt,
1776 0x01, // program number
1777 p_sys->i_pmt_version_number,
1778 1, // b_current_next
1781 if( p_sys->i_mpeg4_streams > 0 )
1785 bits_buffer_t bits_fix_IOD;
1787 /* Make valgrind happy : it works at byte level not bit one so
1788 * bit_write confuse it (but DON'T CHANGE the way that bit_write is
1789 * working (needed when fixing some bits) */
1790 memset( iod, 0, 4096 );
1792 bits_initwrite( &bits, 4096, iod );
1794 bits_write( &bits, 8, 0x01 );
1795 // InitialObjectDescriptor
1796 bits_align( &bits );
1797 bits_write( &bits, 8, 0x02 ); // tag
1798 bits_fix_IOD = bits; // save states to fix length later
1799 bits_write( &bits, 24,
1800 GetDescriptorLength24b( 0 ) ); // variable length (fixed later)
1801 bits_write( &bits, 10, 0x01 ); // ObjectDescriptorID
1802 bits_write( &bits, 1, 0x00 ); // URL Flag
1803 bits_write( &bits, 1, 0x00 ); // includeInlineProfileLevelFlag
1804 bits_write( &bits, 4, 0x0f ); // reserved
1805 bits_write( &bits, 8, 0xff ); // ODProfile (no ODcapability )
1806 bits_write( &bits, 8, 0xff ); // sceneProfile
1807 bits_write( &bits, 8, 0xfe ); // audioProfile (unspecified)
1808 bits_write( &bits, 8, 0xfe ); // visualProfile( // )
1809 bits_write( &bits, 8, 0xff ); // graphicProfile (no )
1810 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1812 ts_stream_t *p_stream;
1813 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1815 if( p_stream->i_stream_id == 0xfa ||
1816 p_stream->i_stream_id == 0xfb ||
1817 p_stream->i_stream_id == 0xfe )
1819 bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
1821 bits_align( &bits );
1822 bits_write( &bits, 8, 0x03 ); // ES_DescrTag
1823 bits_fix_ESDescr = bits;
1824 bits_write( &bits, 24,
1825 GetDescriptorLength24b( 0 ) ); // variable size
1826 bits_write( &bits, 16, p_stream->i_es_id );
1827 bits_write( &bits, 1, 0x00 ); // streamDependency
1828 bits_write( &bits, 1, 0x00 ); // URL Flag
1829 bits_write( &bits, 1, 0x00 ); // OCRStreamFlag
1830 bits_write( &bits, 5, 0x1f ); // streamPriority
1832 // DecoderConfigDesciptor
1833 bits_align( &bits );
1834 bits_write( &bits, 8, 0x04 ); // DecoderConfigDescrTag
1835 bits_fix_Decoder = bits;
1836 bits_write( &bits, 24, GetDescriptorLength24b( 0 ) );
1837 if( p_stream->i_stream_type == 0x10 )
1839 bits_write( &bits, 8, 0x20 ); // Visual 14496-2
1840 bits_write( &bits, 6, 0x04 ); // VisualStream
1842 else if( p_stream->i_stream_type == 0x11 )
1844 bits_write( &bits, 8, 0x40 ); // Audio 14496-3
1845 bits_write( &bits, 6, 0x05 ); // AudioStream
1847 else if( p_stream->i_stream_type == 0x12 &&
1848 p_stream->i_codec == VLC_FOURCC('s','u','b','t') )
1850 bits_write( &bits, 8, 0x0B ); // Text Stream
1851 bits_write( &bits, 6, 0x04 ); // VisualStream
1855 bits_write( &bits, 8, 0x00 );
1856 bits_write( &bits, 6, 0x00 );
1858 msg_Err( p_mux->p_sout,"Unsupported stream_type => "
1861 bits_write( &bits, 1, 0x00 ); // UpStream
1862 bits_write( &bits, 1, 0x01 ); // reserved
1863 bits_write( &bits, 24, 1024 * 1024 ); // bufferSizeDB
1864 bits_write( &bits, 32, 0x7fffffff ); // maxBitrate
1865 bits_write( &bits, 32, 0 ); // avgBitrate
1867 if( p_stream->i_decoder_specific_info > 0 )
1870 // DecoderSpecificInfo
1871 bits_align( &bits );
1872 bits_write( &bits, 8, 0x05 ); // tag
1873 bits_write( &bits, 24, GetDescriptorLength24b(
1874 p_stream->i_decoder_specific_info ) );
1875 for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
1877 bits_write( &bits, 8,
1878 ((uint8_t*)p_stream->p_decoder_specific_info)[i] );
1881 /* fix Decoder length */
1882 bits_write( &bits_fix_Decoder, 24,
1883 GetDescriptorLength24b( bits.i_data -
1884 bits_fix_Decoder.i_data - 3 ) );
1886 /* SLConfigDescriptor : predifined (0x01) */
1887 bits_align( &bits );
1888 bits_write( &bits, 8, 0x06 ); // tag
1889 bits_write( &bits, 24, GetDescriptorLength24b( 8 ) );
1890 bits_write( &bits, 8, 0x01 ); // predefined
1891 bits_write( &bits, 1, 0 ); // durationFlag
1892 bits_write( &bits, 32, 0 ); // OCRResolution
1893 bits_write( &bits, 8, 0 ); // OCRLength
1894 bits_write( &bits, 8, 0 ); // InstantBitrateLength
1895 bits_align( &bits );
1897 /* fix ESDescr length */
1898 bits_write( &bits_fix_ESDescr, 24,
1899 GetDescriptorLength24b( bits.i_data -
1900 bits_fix_ESDescr.i_data - 3 ) );
1903 bits_align( &bits );
1904 /* fix IOD length */
1905 bits_write( &bits_fix_IOD, 24,
1906 GetDescriptorLength24b( bits.i_data -
1907 bits_fix_IOD.i_data - 3 ) );
1908 dvbpsi_PMTAddDescriptor( &pmt, 0x1d, bits.i_data, bits.p_data );
1911 for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
1913 ts_stream_t *p_stream;
1915 p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
1917 p_es = dvbpsi_PMTAddES( &pmt, p_stream->i_stream_type,
1919 if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
1924 es_id[0] = (p_stream->i_es_id >> 8)&0xff;
1925 es_id[1] = (p_stream->i_es_id)&0xff;
1926 dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
1928 else if( p_stream->i_stream_type == 0xa0 )
1931 int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
1933 /* private DIV3 descripor */
1934 memcpy( &data[0], &p_stream->i_bih_codec, 4 );
1935 data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
1936 data[5] = ( p_stream->i_bih_width )&0xff;
1937 data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
1938 data[7] = ( p_stream->i_bih_height )&0xff;
1939 data[8] = ( i_extra >> 8 )&0xff;
1940 data[9] = ( i_extra )&0xff;
1943 memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
1946 /* 0xa0 is private */
1947 dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
1949 else if( p_stream->i_stream_type == 0x81 )
1951 uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
1953 /* "registration" descriptor : "AC-3" */
1954 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
1956 else if( p_stream->i_codec == VLC_FOURCC('d','t','s',' ') )
1958 /* DTS registration descriptor (ETSI TS 101 154 Annex F) */
1960 /* DTS format identifier, frame size 1024 - FIXME */
1961 uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
1962 dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
1964 else if( p_stream->i_codec == VLC_FOURCC('t','e','l','x') )
1966 dvbpsi_PMTESAddDescriptor( p_es, 0x56,
1967 p_stream->i_decoder_specific_info,
1968 p_stream->p_decoder_specific_info );
1970 #ifdef _DVBPSI_DR_59_H_
1971 else if( p_stream->i_codec == VLC_FOURCC('d','v','b','s') )
1974 dvbpsi_subtitling_dr_t descr;
1975 dvbpsi_subtitle_t sub;
1976 dvbpsi_descriptor_t *p_descr;
1978 memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
1979 sub.i_subtitling_type = 0x10; /* no aspect-ratio criticality */
1980 sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
1981 sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
1983 descr.i_subtitles_number = 1;
1984 descr.p_subtitle[0] = sub;
1986 p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
1987 /* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
1988 dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
1989 p_descr->i_length, p_descr->p_data );
1992 #endif /* _DVBPSI_DR_59_H_ */
1994 if( p_stream->lang[0] != 0 )
1998 /* I construct the content myself, way faster than looking at
1999 * over complicated/mind broken libdvbpsi way */
2000 data[0] = p_stream->lang[0];
2001 data[1] = p_stream->lang[1];
2002 data[2] = p_stream->lang[2];
2003 data[3] = 0x00; /* audio type: 0x00 undefined */
2005 dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4, data );
2009 p_section = dvbpsi_GenPMTSections( &pmt );
2011 p_pmt = WritePSISection( p_mux->p_sout, p_section );
2013 PEStoTS( p_mux->p_sout, c, p_pmt, &p_sys->pmt );
2015 dvbpsi_DeletePSISections( p_section );
2016 dvbpsi_EmptyPMT( &pmt );