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vlc/modules/mux/mpeg/ts.c

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/*****************************************************************************
* ts.c: MPEG-II TS Muxer
*****************************************************************************
* Copyright (C) 2001-2005 the VideoLAN team
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Eric Petit <titer@videolan.org>
* Jean-Paul Saman <jpsaman #_at_# m2x.nl>
* Wallace Wadge <wwadge #_at_# gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc/vlc.h>
#include <vlc_sout.h>
#include <vlc_codecs.h>
#include <vlc_block.h>
#include "iso_lang.h"
#include "bits.h"
#include "pes.h"
#include "csa.h"
#ifdef HAVE_DVBPSI_DR_H
# include <dvbpsi/dvbpsi.h>
# include <dvbpsi/demux.h>
# include <dvbpsi/descriptor.h>
# include <dvbpsi/pat.h>
# include <dvbpsi/pmt.h>
# include <dvbpsi/sdt.h>
# include <dvbpsi/dr.h>
# include <dvbpsi/psi.h>
#else
# include "dvbpsi.h"
# include "demux.h"
# include "descriptor.h"
# include "tables/pat.h"
# include "tables/pmt.h"
# include "tables/sdt.h"
# include "descriptors/dr.h"
# include "psi.h"
#endif
/*
* TODO:
* - check PCR frequency requirement
* - check PAT/PMT " "
* - check PCR/PCR "soft"
* - check if "registration" descriptor : "AC-3" should be a program
* descriptor or an es one. (xine want an es one)
*
* - remove creation of PAT/PMT without dvbpsi
* - ?
* FIXME:
* - subtitle support is far from perfect. I expect some subtitles drop
* if they arrive a bit late
* (We cannot rely on the fact that the fifo should be full)
*/
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
#define VPID_TEXT N_("Video PID")
#define VPID_LONGTEXT N_("Assign a fixed PID to the video stream. The PCR " \
"PID will automatically be the video.")
#define APID_TEXT N_("Audio PID")
#define APID_LONGTEXT N_("Assign a fixed PID to the audio stream.")
#define SPUPID_TEXT N_("SPU PID")
#define SPUPID_LONGTEXT N_("Assign a fixed PID to the SPU.")
#define PMTPID_TEXT N_("PMT PID")
#define PMTPID_LONGTEXT N_("Assign a fixed PID to the PMT")
#define TSID_TEXT N_("TS ID")
#define TSID_LONGTEXT N_("Assign a fixed Transport Stream ID.")
#define NETID_TEXT N_("NET ID")
#define NETID_LONGTEXT N_("Assign a fixed Network ID (for SDT table)")
#define PMTPROG_TEXT N_("PMT Program numbers")
#define PMTPROG_LONGTEXT N_("Assign a program number to each PMT. This " \
"requires \"Set PID to ID of ES\" to be enabled." )
#define MUXPMT_TEXT N_("Mux PMT (requires --sout-ts-es-id-pid)")
#define MUXPMT_LONGTEXT N_("Define the pids to add to each pmt. This " \
"requires \"Set PID to ID of ES\" to be enabled." )
#define SDTDESC_TEXT N_("SDT Descriptors (requires --sout-ts-es-id-pid)")
#define SDTDESC_LONGTEXT N_("Defines the descriptors of each SDT. This" \
"requires \"Set PID to ID of ES\" to be enabled." )
#define PID_TEXT N_("Set PID to ID of ES")
#define PID_LONGTEXT N_("Sets PID to the ID if the incoming ES. This is for " \
"use with --ts-es-id-pid, and allows to have the same PIDs in the input " \
"and output streams.")
#define ALIGNMENT_TEXT N_("Data alignment")
#define ALIGNMENT_LONGTEXT N_("Enforces alignment of all access units on " \
"PES boundaries. Disabling this might save some bandwidth but introduce incompatibilities.")
#define SHAPING_TEXT N_("Shaping delay (ms)")
#define SHAPING_LONGTEXT N_("Cut the " \
"stream in slices of the given duration, and ensure a constant bitrate " \
"between the two boundaries. This avoids having huge bitrate peaks, " \
"especially for reference frames." )
#define KEYF_TEXT N_("Use keyframes")
#define KEYF_LONGTEXT N_("If enabled, and shaping is specified, " \
"the TS muxer will place the boundaries at the end of I pictures. In " \
"that case, the shaping duration given by the user is a worse case " \
"used when no reference frame is available. This enhances the efficiency " \
"of the shaping algorithm, since I frames are usually the biggest " \
"frames in the stream.")
#define PCR_TEXT N_("PCR delay (ms)")
#define PCR_LONGTEXT N_("Set at which interval " \
"PCRs (Program Clock Reference) will be sent (in milliseconds). " \
"This value should be below 100ms. (default is 70ms).")
#define BMIN_TEXT N_( "Minimum B (deprecated)")
#define BMIN_LONGTEXT N_( "This setting is deprecated and not used anymore" )
#define BMAX_TEXT N_( "Maximum B (deprecated)")
#define BMAX_LONGTEXT N_( "This setting is deprecated and not used anymore")
#define DTS_TEXT N_("DTS delay (ms)")
#define DTS_LONGTEXT N_("Delay the DTS (decoding time " \
"stamps) and PTS (presentation timestamps) of the data in the " \
"stream, compared to the PCRs. This allows for some buffering inside " \
"the client decoder.")
#define ACRYPT_TEXT N_("Crypt audio")
#define ACRYPT_LONGTEXT N_("Crypt audio using CSA")
#define VCRYPT_TEXT N_("Crypt video")
#define VCRYPT_LONGTEXT N_("Crypt video using CSA")
#define CK_TEXT N_("CSA Key")
#define CK_LONGTEXT N_("CSA encryption key. This must be a " \
"16 char string (8 hexadecimal bytes).")
#define CPKT_TEXT N_("Packet size in bytes to encrypt")
#define CPKT_LONGTEXT N_("Size of the TS packet to encrypt. " \
"The encryption routines subtract the TS-header from the value before " \
"encrypting." )
#define SOUT_CFG_PREFIX "sout-ts-"
#ifdef HAVE_BSEARCH
# define MAX_PMT 64 /* Maximum number of programs. FIXME: I just chose an arbitary number. Where is the maximum in the spec? */
#else
# define MAX_PMT 1
#endif
#define MAX_PMT_PID 64 /* Maximum pids in each pmt. FIXME: I just chose an arbitary number. Where is the maximum in the spec? */
vlc_module_begin();
set_description( _("TS muxer (libdvbpsi)") );
set_shortname( "MPEG-TS");
set_category( CAT_SOUT );
set_subcategory( SUBCAT_SOUT_MUX );
set_capability( "sout mux", 120 );
add_shortcut( "ts" );
add_integer( SOUT_CFG_PREFIX "pid-video", 0, NULL,VPID_TEXT, VPID_LONGTEXT,
VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "pid-audio", 0, NULL, APID_TEXT,
APID_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "pid-spu", 0, NULL, SPUPID_TEXT,
SPUPID_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "pid-pmt", 0, NULL, PMTPID_TEXT,
PMTPID_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "tsid", 0, NULL, TSID_TEXT,
TSID_LONGTEXT, VLC_TRUE );
#ifdef HAVE_DVBPSI_SDT
add_integer( SOUT_CFG_PREFIX "netid", 0, NULL, NETID_TEXT,
NETID_LONGTEXT, VLC_TRUE );
#endif
add_string( SOUT_CFG_PREFIX "program-pmt", NULL, NULL, PMTPROG_TEXT,
PMTPROG_LONGTEXT, VLC_TRUE );
add_bool( SOUT_CFG_PREFIX "es-id-pid", 0, NULL, PID_TEXT, PID_LONGTEXT,
VLC_TRUE );
add_string( SOUT_CFG_PREFIX "muxpmt", NULL, NULL, MUXPMT_TEXT, MUXPMT_LONGTEXT, VLC_TRUE );
#ifdef HAVE_DVBPSI_SDT
add_string( SOUT_CFG_PREFIX "sdtdesc", NULL, NULL, SDTDESC_TEXT, SDTDESC_LONGTEXT, VLC_TRUE );
#endif
add_bool( SOUT_CFG_PREFIX "alignment", VLC_TRUE, NULL, ALIGNMENT_TEXT,
ALIGNMENT_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "shaping", 200, NULL,SHAPING_TEXT,
SHAPING_LONGTEXT, VLC_TRUE );
add_bool( SOUT_CFG_PREFIX "use-key-frames", VLC_FALSE, NULL, KEYF_TEXT,
KEYF_LONGTEXT, VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "pcr", 70, NULL, PCR_TEXT, PCR_LONGTEXT,
VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "bmin", 0, NULL, BMIN_TEXT, BMIN_LONGTEXT,
VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "bmax", 0, NULL, BMAX_TEXT, BMAX_LONGTEXT,
VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "dts-delay", 400, NULL, DTS_TEXT,
DTS_LONGTEXT, VLC_TRUE );
add_bool( SOUT_CFG_PREFIX "crypt-audio", VLC_TRUE, NULL, ACRYPT_TEXT,
ACRYPT_LONGTEXT, VLC_TRUE );
add_bool( SOUT_CFG_PREFIX "crypt-video", VLC_TRUE, NULL, VCRYPT_TEXT,
VCRYPT_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "csa-ck", NULL, NULL, CK_TEXT, CK_LONGTEXT,
VLC_TRUE );
add_integer( SOUT_CFG_PREFIX "csa-pkt", 188, NULL, CPKT_TEXT, CPKT_LONGTEXT, VLC_TRUE );
set_callbacks( Open, Close );
vlc_module_end();
/*****************************************************************************
* Local data structures
*****************************************************************************/
static const char *ppsz_sout_options[] = {
"pid-video", "pid-audio", "pid-spu", "pid-pmt", "tsid", "netid",
"es-id-pid", "shaping", "pcr", "bmin", "bmax", "use-key-frames",
"dts-delay", "csa-ck", "csa-pkt", "crypt-audio", "crypt-video",
"muxpmt", "sdtdesc", "program-pmt", "alignment",
NULL
};
typedef struct pmt_map_t /* Holds the mapping between the pmt-pid/pmt table */
{
int i_pid;
unsigned long i_prog;
} pmt_map_t;
typedef struct sdt_desc_t
{
char *psz_provider;
char *psz_service_name; /* name of program */
} sdt_desc_t;
typedef struct
{
int i_depth;
block_t *p_first;
block_t **pp_last;
} sout_buffer_chain_t;
static inline void BufferChainInit ( sout_buffer_chain_t *c )
{
c->i_depth = 0;
c->p_first = NULL;
c->pp_last = &c->p_first;
}
static inline void BufferChainAppend( sout_buffer_chain_t *c, block_t *b )
{
*c->pp_last = b;
c->i_depth++;
while( b->p_next )
{
b = b->p_next;
c->i_depth++;
}
c->pp_last = &b->p_next;
}
static inline block_t *BufferChainGet( sout_buffer_chain_t *c )
{
block_t *b = c->p_first;
if( b )
{
c->i_depth--;
c->p_first = b->p_next;
if( c->p_first == NULL )
{
c->pp_last = &c->p_first;
}
b->p_next = NULL;
}
return b;
}
static inline block_t *BufferChainPeek( sout_buffer_chain_t *c )
{
block_t *b = c->p_first;
return b;
}
static inline void BufferChainClean( sout_buffer_chain_t *c )
{
block_t *b;
while( ( b = BufferChainGet( c ) ) )
{
block_Release( b );
}
BufferChainInit( c );
}
typedef struct ts_stream_t
{
int i_pid;
vlc_fourcc_t i_codec;
int i_stream_type;
int i_stream_id;
int i_continuity_counter;
vlc_bool_t b_discontinuity;
/* to be used for carriege of DIV3 */
vlc_fourcc_t i_bih_codec;
int i_bih_width, i_bih_height;
/* Specific to mpeg4 in mpeg2ts */
int i_es_id;
int i_decoder_specific_info;
uint8_t *p_decoder_specific_info;
/* language is iso639-2T */
int i_langs;
uint8_t *lang;
sout_buffer_chain_t chain_pes;
mtime_t i_pes_dts;
mtime_t i_pes_length;
int i_pes_used;
vlc_bool_t b_key_frame;
} ts_stream_t;
struct sout_mux_sys_t
{
int i_pcr_pid;
sout_input_t *p_pcr_input;
int i_audio_bound;
int i_video_bound;
vlc_bool_t b_es_id_pid;
vlc_bool_t b_sdt;
int i_pid_video;
int i_pid_audio;
int i_pid_spu;
int i_pid_free; /* first usable pid */
int i_tsid;
int i_netid;
int i_num_pmt;
int i_pmtslots;
int i_pat_version_number;
ts_stream_t pat;
int i_pmt_version_number;
ts_stream_t pmt[MAX_PMT];
pmt_map_t pmtmap[MAX_PMT_PID];
int i_pmt_program_number[MAX_PMT];
sdt_desc_t sdt_descriptors[MAX_PMT];
vlc_bool_t b_data_alignment;
int i_mpeg4_streams;
int i_null_continuity_counter; /* Needed ? */
ts_stream_t sdt;
dvbpsi_pmt_t *dvbpmt;
/* for TS building */
int64_t i_bitrate_min;
int64_t i_bitrate_max;
int64_t i_shaping_delay;
int64_t i_pcr_delay;
int64_t i_dts_delay;
vlc_bool_t b_use_key_frames;
mtime_t i_pcr; /* last PCR emited */
csa_t *csa;
int i_csa_pkt_size;
vlc_bool_t b_crypt_audio;
vlc_bool_t b_crypt_video;
};
/* Reserve a pid and return it */
static int AllocatePID( sout_mux_sys_t *p_sys, int i_cat )
{
int i_pid;
if ( i_cat == VIDEO_ES && p_sys->i_pid_video )
{
i_pid = p_sys->i_pid_video;
p_sys->i_pid_video = 0;
}
else if ( i_cat == AUDIO_ES && p_sys->i_pid_audio )
{
i_pid = p_sys->i_pid_audio;
p_sys->i_pid_audio = 0;
}
else if ( i_cat == SPU_ES && p_sys->i_pid_spu )
{
i_pid = p_sys->i_pid_spu;
p_sys->i_pid_spu = 0;
}
else
{
i_pid = ++p_sys->i_pid_free;
}
return i_pid;
}
static int pmtcompare( const void *pa, const void *pb )
{
if ( ((pmt_map_t *)pa)->i_pid < ((pmt_map_t *)pb)->i_pid )
return -1;
else if ( ((pmt_map_t *)pa)->i_pid > ((pmt_map_t *)pb)->i_pid )
return 1;
else
return 0;
}
static int intcompare( const void *pa, const void *pb )
{
if ( *(int *)pa < *(int *)pb )
return -1;
else if ( *(int *)pa > *(int *)pb )
return 1;
else
return 0;
}
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Control ( sout_mux_t *, int, va_list );
static int AddStream( sout_mux_t *, sout_input_t * );
static int DelStream( sout_mux_t *, sout_input_t * );
static int Mux ( sout_mux_t * );
static block_t *FixPES( sout_mux_t *p_mux, block_fifo_t *p_fifo );
static void TSSchedule ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
mtime_t i_pcr_length, mtime_t i_pcr_dts );
static void TSDate ( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
mtime_t i_pcr_length, mtime_t i_pcr_dts );
static void GetPAT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c );
static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream, vlc_bool_t b_pcr );
static void TSSetPCR( block_t *p_ts, mtime_t i_dts );
static void PEStoTS ( sout_instance_t *, sout_buffer_chain_t *, block_t *, ts_stream_t * );
/*****************************************************************************
* Open:
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
sout_mux_t *p_mux =(sout_mux_t*)p_this;
sout_mux_sys_t *p_sys = NULL;
vlc_value_t val;
int i;
config_ChainParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
p_sys = malloc( sizeof( sout_mux_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
p_sys->i_pmtslots = p_sys->b_sdt = 0;
p_sys->i_num_pmt = 1;
p_sys->dvbpmt = NULL;
memset( &p_sys->pmtmap, 0, sizeof(p_sys->pmtmap) );
p_mux->pf_control = Control;
p_mux->pf_addstream = AddStream;
p_mux->pf_delstream = DelStream;
p_mux->pf_mux = Mux;
p_mux->p_sys = p_sys;
srand( (uint32_t)mdate() );
for ( i = 0; i < MAX_PMT; i++ )
p_sys->sdt_descriptors[i].psz_service_name
= p_sys->sdt_descriptors[i].psz_provider = NULL;
memset( p_sys->sdt_descriptors, 0, sizeof(sdt_desc_t) );
p_sys->i_audio_bound = 0;
p_sys->i_video_bound = 0;
var_Get( p_mux, SOUT_CFG_PREFIX "es-id-pid", &val );
p_sys->b_es_id_pid = val.b_bool;
var_Get( p_mux, SOUT_CFG_PREFIX "muxpmt", &val );
/*
fetch string of pmts. Here's a sample: --sout-ts-muxpmt="0x451,0x200,0x28a,0x240,,0x450,0x201,0x28b,0x241,,0x452,0x202,0x28c,0x242"
This would mean 0x451, 0x200, 0x28a, 0x240 would fall under one pmt (program), 0x450,0x201,0x28b,0x241 would fall under another
*/
if( val.psz_string != NULL && *val.psz_string )
{
char *psz_next;
char *psz = val.psz_string;
uint16_t i_pid;
psz_next = psz;
while( psz != NULL )
{
i_pid = strtoul( psz, &psz_next, 0 );
if ( strlen(psz_next) > 0 )
psz = &psz_next[1];
if ( i_pid == 0 )
{
p_sys->i_num_pmt++;
if ( p_sys->i_num_pmt > MAX_PMT )
{
msg_Err( p_mux,
"Number of PMTs greater than compiled maximum (%d)", MAX_PMT );
p_sys->i_num_pmt = MAX_PMT;
}
}
else
{
p_sys->pmtmap[p_sys->i_pmtslots].i_pid = i_pid;
p_sys->pmtmap[p_sys->i_pmtslots].i_prog = p_sys->i_num_pmt - 1;
p_sys->i_pmtslots++;
if ( p_sys->i_pmtslots > MAX_PMT_PID )
{
msg_Err( p_mux,
"Number of pids in PMT greater than compiled maximum (%d)",
MAX_PMT_PID );
p_sys->i_pmtslots = MAX_PMT_PID;
}
}
/* Now sort according to pids for fast search later on */
qsort( (void *)p_sys->pmtmap, p_sys->i_pmtslots,
sizeof(pmt_map_t), &pmtcompare );
if ( !*psz_next )
psz = NULL;
}
}
if( val.psz_string != NULL) free( val.psz_string );
p_sys->i_pat_version_number = rand() % 32;
p_sys->pat.i_pid = 0;
p_sys->pat.i_continuity_counter = 0;
p_sys->pat.b_discontinuity = VLC_FALSE;
var_Get( p_mux, SOUT_CFG_PREFIX "tsid", &val );
if ( val.i_int )
p_sys->i_tsid = val.i_int;
else
p_sys->i_tsid = rand() % 65536;
p_sys->i_netid = rand() % 65536;
#ifdef HAVE_DVBPSI_SDT
var_Get( p_mux, SOUT_CFG_PREFIX "netid", &val );
if ( val.i_int )
p_sys->i_netid = val.i_int;
#endif
p_sys->i_pmt_version_number = rand() % 32;
for( i = 0; i < p_sys->i_num_pmt; i++ )
{
p_sys->pmt[i].i_continuity_counter = 0;
p_sys->pmt[i].b_discontinuity = VLC_FALSE;
}
p_sys->sdt.i_pid = 0x11;
p_sys->sdt.i_continuity_counter = 0;
p_sys->sdt.b_discontinuity = VLC_FALSE;
#ifdef HAVE_DVBPSI_SDT
var_Get( p_mux, SOUT_CFG_PREFIX "sdtdesc", &val );
p_sys->b_sdt = val.psz_string && *val.psz_string ? VLC_TRUE : VLC_FALSE;
/* Syntax is provider_sdt1,service_name_sdt1,provider_sdt2,service_name_sdt2... */
if( p_sys->b_sdt )
{
char *psz = val.psz_string;
char *psz_sdttoken = psz;
i = 0;
while ( psz_sdttoken != NULL )
{
char *psz_end = strchr( psz_sdttoken, ',' );
if( psz_end != NULL )
{
*psz_end++ = '\0';
}
if ( !(i % 2) )
{
p_sys->sdt_descriptors[i/2].psz_provider
= strdup(psz_sdttoken);
}
else
{
p_sys->sdt_descriptors[i/2].psz_service_name
= strdup(psz_sdttoken);
}
i++;
psz_sdttoken = psz_end;
}
}
if( val.psz_string != NULL ) free( val.psz_string );
#else
p_sys->b_sdt = VLC_FALSE;
#endif
var_Get( p_mux, SOUT_CFG_PREFIX "alignment", &val );
p_sys->b_data_alignment = val.b_bool;
var_Get( p_mux, SOUT_CFG_PREFIX "program-pmt", &val );
if( val.psz_string && *val.psz_string )
{
char *psz_next;
char *psz = val.psz_string;
uint16_t i_pid;
psz_next = psz;
i = 0;
while ( psz != NULL )
{
i_pid = strtoul( psz, &psz_next, 0 );
if( strlen(psz_next) > 0 )
psz = &psz_next[1];
else
psz = NULL;
if( i_pid == 0 )
{
if( i > MAX_PMT )
msg_Err( p_mux, "Number of PMTs > maximum (%d)",
MAX_PMT );
}
else
{
p_sys->i_pmt_program_number[i] = i_pid;
i++;
}
}
}
else
{
/* Option not specified, use 1, 2, 3... */
for( i = 0; i < p_sys->i_num_pmt; i++ )
p_sys->i_pmt_program_number[i] = i + 1;
}
if( val.psz_string != NULL ) free( val.psz_string );
var_Get( p_mux, SOUT_CFG_PREFIX "pid-pmt", &val );
if( val.i_int )
{
for( i = 0; i < p_sys->i_num_pmt; i++ )
p_sys->pmt[i].i_pid = val.i_int + i; /* Does this make any sense? */
}
else
{
for( i = 0; i < p_sys->i_num_pmt; i++ )
p_sys->pmt[i].i_pid = 0x42 + i;
}
p_sys->i_pid_free = p_sys->pmt[p_sys->i_num_pmt - 1].i_pid + 1;
var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
p_sys->i_pid_video = val.i_int;
if ( p_sys->i_pid_video > p_sys->i_pid_free )
{
p_sys->i_pid_free = p_sys->i_pid_video + 1;
}
var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
p_sys->i_pid_audio = val.i_int;
if ( p_sys->i_pid_audio > p_sys->i_pid_free )
{
p_sys->i_pid_free = p_sys->i_pid_audio + 1;
}
var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
p_sys->i_pid_spu = val.i_int;
if ( p_sys->i_pid_spu > p_sys->i_pid_free )
{
p_sys->i_pid_free = p_sys->i_pid_spu + 1;
}
p_sys->i_pcr_pid = 0x1fff;
p_sys->p_pcr_input = NULL;
p_sys->i_mpeg4_streams = 0;
p_sys->i_null_continuity_counter = 0;
/* Allow to create constrained stream */
var_Get( p_mux, SOUT_CFG_PREFIX "bmin", &val );
p_sys->i_bitrate_min = val.i_int;
var_Get( p_mux, SOUT_CFG_PREFIX "bmax", &val );
p_sys->i_bitrate_max = val.i_int;
if( p_sys->i_bitrate_min > 0 && p_sys->i_bitrate_max > 0 &&
p_sys->i_bitrate_min > p_sys->i_bitrate_max )
{
msg_Err( p_mux, "incompatible minimum and maximum bitrate, "
"disabling bitrate control" );
p_sys->i_bitrate_min = 0;
p_sys->i_bitrate_max = 0;
}
if( p_sys->i_bitrate_min > 0 || p_sys->i_bitrate_max > 0 )
{
msg_Err( p_mux, "bmin and bmax no more supported "
"(if you need them report it)" );
}
var_Get( p_mux, SOUT_CFG_PREFIX "shaping", &val );
p_sys->i_shaping_delay = (int64_t)val.i_int * 1000;
if( p_sys->i_shaping_delay <= 0 )
{
msg_Err( p_mux,
"invalid shaping ("I64Fd"ms) resetting to 200ms",
p_sys->i_shaping_delay / 1000 );
p_sys->i_shaping_delay = 200000;
}
var_Get( p_mux, SOUT_CFG_PREFIX "pcr", &val );
p_sys->i_pcr_delay = (int64_t)val.i_int * 1000;
if( p_sys->i_pcr_delay <= 0 ||
p_sys->i_pcr_delay >= p_sys->i_shaping_delay )
{
msg_Err( p_mux,
"invalid pcr delay ("I64Fd"ms) resetting to 70ms",
p_sys->i_pcr_delay / 1000 );
p_sys->i_pcr_delay = 70000;
}
var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
msg_Dbg( p_mux, "shaping="I64Fd" pcr="I64Fd" dts_delay="I64Fd,
p_sys->i_shaping_delay, p_sys->i_pcr_delay, p_sys->i_dts_delay );
var_Get( p_mux, SOUT_CFG_PREFIX "use-key-frames", &val );
p_sys->b_use_key_frames = val.b_bool;
/* for TS generation */
p_sys->i_pcr = 0;
p_sys->csa = NULL;
var_Get( p_mux, SOUT_CFG_PREFIX "csa-ck", &val );
if( val.psz_string && *val.psz_string )
{
char *psz = val.psz_string;
/* skip 0x */
if( psz[0] == '0' && ( psz[1] == 'x' || psz[1] == 'X' ) )
{
psz += 2;
}
if( strlen( psz ) != 16 )
{
msg_Dbg( p_mux, "invalid csa ck (it must be 16 chars long)" );
}
else
{
uint64_t i_ck = strtoull( psz, NULL, 16 );
uint8_t ck[8];
int i;
for( i = 0; i < 8; i++ )
{
ck[i] = ( i_ck >> ( 56 - 8*i) )&0xff;
}
#ifndef TS_NO_CSA_CK_MSG
msg_Dbg( p_mux, "using CSA scrambling with ck=%x:%x:%x:%x:%x:%x:%x:%x",
ck[0], ck[1], ck[2], ck[3], ck[4], ck[5], ck[6], ck[7] );
#endif
p_sys->csa = csa_New();
if( p_sys->csa )
{
vlc_value_t pkt_val;
csa_SetCW( p_sys->csa, ck, ck );
var_Get( p_mux, SOUT_CFG_PREFIX "csa-pkt", &pkt_val );
if( pkt_val.i_int < 12 || pkt_val.i_int > 188 )
{
msg_Err( p_mux, "wrong packet size %d specified.", pkt_val.i_int );
msg_Warn( p_mux, "using default packet size of 188 bytes" );
p_sys->i_csa_pkt_size = 188;
}
else p_sys->i_csa_pkt_size = pkt_val.i_int;
msg_Dbg( p_mux, "encrypting %d bytes of packet", p_sys->i_csa_pkt_size );
}
}
}
if( val.psz_string ) free( val.psz_string );
var_Get( p_mux, SOUT_CFG_PREFIX "crypt-audio", &val );
p_sys->b_crypt_audio = val.b_bool;
var_Get( p_mux, SOUT_CFG_PREFIX "crypt-video", &val );
p_sys->b_crypt_video = val.b_bool;
return VLC_SUCCESS;
}
/*****************************************************************************
* Close:
*****************************************************************************/
static void Close( vlc_object_t * p_this )
{
sout_mux_t *p_mux = (sout_mux_t*)p_this;
sout_mux_sys_t *p_sys = p_mux->p_sys;
int i;
if( p_sys->csa )
{
csa_Delete( p_sys->csa );
}
for( i = 0; i < MAX_PMT; i++ )
{
if( p_sys->sdt_descriptors[i].psz_service_name != NULL )
free( p_sys->sdt_descriptors[i].psz_service_name );
if( p_sys->sdt_descriptors[i].psz_provider != NULL )
free( p_sys->sdt_descriptors[i].psz_provider );
}
if( p_sys->dvbpmt != NULL ) /* safety */
free ( p_sys->dvbpmt );
free( p_sys );
}
/*****************************************************************************
* Control:
*****************************************************************************/
static int Control( sout_mux_t *p_mux, int i_query, va_list args )
{
VLC_UNUSED(p_mux);
vlc_bool_t *pb_bool;
char **ppsz;
switch( i_query )
{
case MUX_CAN_ADD_STREAM_WHILE_MUXING:
pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
*pb_bool = VLC_TRUE;
return VLC_SUCCESS;
case MUX_GET_ADD_STREAM_WAIT:
pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
*pb_bool = VLC_FALSE;
return VLC_SUCCESS;
case MUX_GET_MIME:
ppsz = (char**)va_arg( args, char ** );
*ppsz = strdup( "video/mpeg" ); /* FIXME not sure */
return VLC_SUCCESS;
default:
return VLC_EGENERIC;
}
}
/*****************************************************************************
* AddStream: called for each stream addition
*****************************************************************************/
static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
ts_stream_t *p_stream;
int i;
p_input->p_sys = p_stream = malloc( sizeof( ts_stream_t ) );
if( !p_input->p_sys )
return VLC_ENOMEM;
/* Init this new stream */
if ( p_sys->b_es_id_pid )
p_stream->i_pid = p_input->p_fmt->i_id & 0x1fff;
else
p_stream->i_pid = AllocatePID( p_sys, p_input->p_fmt->i_cat );
p_stream->i_codec = p_input->p_fmt->i_codec;
p_stream->i_continuity_counter = 0;
p_stream->b_discontinuity = VLC_FALSE;
p_stream->i_decoder_specific_info = 0;
p_stream->p_decoder_specific_info = NULL;
msg_Dbg( p_mux, "adding input codec=%4.4s pid=%d",
(char*)&p_input->p_fmt->i_codec, p_stream->i_pid );
/* All others fields depand on codec */
switch( p_input->p_fmt->i_cat )
{
case VIDEO_ES:
switch( p_input->p_fmt->i_codec )
{
case VLC_FOURCC( 'm', 'p','g', 'v' ):
/* TODO: do we need to check MPEG-I/II ? */
p_stream->i_stream_type = 0x02;
p_stream->i_stream_id = 0xe0;
break;
case VLC_FOURCC( 'm', 'p','4', 'v' ):
p_stream->i_stream_type = 0x10;
p_stream->i_stream_id = 0xe0;
p_stream->i_es_id = p_stream->i_pid;
break;
case VLC_FOURCC( 'h', '2','6', '4' ):
p_stream->i_stream_type = 0x1b;
p_stream->i_stream_id = 0xe0;
break;
/* XXX dirty dirty but somebody want that:
* using crapy MS-codec XXX */
/* I didn't want to do that :P */
case VLC_FOURCC( 'H', '2', '6', '3' ):
case VLC_FOURCC( 'I', '2', '6', '3' ):
case VLC_FOURCC( 'W', 'M', 'V', '3' ):
case VLC_FOURCC( 'W', 'M', 'V', '2' ):
case VLC_FOURCC( 'W', 'M', 'V', '1' ):
case VLC_FOURCC( 'D', 'I', 'V', '3' ):
case VLC_FOURCC( 'D', 'I', 'V', '2' ):
case VLC_FOURCC( 'D', 'I', 'V', '1' ):
case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
p_stream->i_stream_type = 0xa0; /* private */
p_stream->i_stream_id = 0xa0; /* beurk */
p_stream->i_bih_codec = p_input->p_fmt->i_codec;
p_stream->i_bih_width = p_input->p_fmt->video.i_width;
p_stream->i_bih_height = p_input->p_fmt->video.i_height;
break;
default:
free( p_stream );
return VLC_EGENERIC;
}
p_sys->i_video_bound++;
break;
case AUDIO_ES:
switch( p_input->p_fmt->i_codec )
{
case VLC_FOURCC( 'm', 'p','g', 'a' ):
case VLC_FOURCC( 'm', 'p', '3', ' ' ):
p_stream->i_stream_type =
p_input->p_fmt->audio.i_rate >= 32000 ? 0x03 : 0x04;
p_stream->i_stream_id = 0xc0;
break;
case VLC_FOURCC( 'a', '5','2', ' ' ):
p_stream->i_stream_type = 0x81;
p_stream->i_stream_id = 0xbd;
break;
case VLC_FOURCC( 'l', 'p','c', 'm' ):
p_stream->i_stream_type = 0x83;
p_stream->i_stream_id = 0xbd;
break;
case VLC_FOURCC( 'd', 't','s', ' ' ):
p_stream->i_stream_type = 0x06;
p_stream->i_stream_id = 0xbd;
break;
case VLC_FOURCC( 'm', 'p','4', 'a' ):
p_stream->i_stream_type = 0x11;
p_stream->i_stream_id = 0xfa;
p_sys->i_mpeg4_streams++;
p_stream->i_es_id = p_stream->i_pid;
break;
default:
free( p_stream );
return VLC_EGENERIC;
}
p_sys->i_audio_bound++;
break;
case SPU_ES:
switch( p_input->p_fmt->i_codec )
{
case VLC_FOURCC( 's', 'p','u', ' ' ):
p_stream->i_stream_type = 0x82;
p_stream->i_stream_id = 0xbd;
break;
case VLC_FOURCC( 's', 'u','b', 't' ):
p_stream->i_stream_type = 0x12;
p_stream->i_stream_id = 0xfa;
p_sys->i_mpeg4_streams++;
p_stream->i_es_id = p_stream->i_pid;
break;
case VLC_FOURCC('d','v','b','s'):
p_stream->i_stream_type = 0x06;
p_stream->i_es_id = p_input->p_fmt->subs.dvb.i_id;
p_stream->i_stream_id = 0xbd;
break;
case VLC_FOURCC('t','e','l','x'):
p_stream->i_stream_type = 0x06;
p_stream->i_stream_id = 0xbd; /* FIXME */
break;
default:
free( p_stream );
return VLC_EGENERIC;
}
break;
default:
free( p_stream );
return VLC_EGENERIC;
}
p_stream->i_langs = 1+p_input->p_fmt->i_extra_languages;
p_stream->lang = malloc(p_stream->i_langs*3);
if( !p_stream->lang )
{
p_stream->i_langs = 0;
free( p_stream );
return VLC_ENOMEM;
}
i = 1;
p_stream->lang[0] =
p_stream->lang[1] =
p_stream->lang[2] = '\0';
if( p_input->p_fmt->psz_language )
{
char *psz = p_input->p_fmt->psz_language;
const iso639_lang_t *pl = NULL;
if( strlen( psz ) == 2 )
{
pl = GetLang_1( psz );
}
else if( strlen( psz ) == 3 )
{
pl = GetLang_2B( psz );
if( !strcmp( pl->psz_iso639_1, "??" ) )
{
pl = GetLang_2T( psz );
}
}
if( pl && strcmp( pl->psz_iso639_1, "??" ) )
{
p_stream->lang[0] = pl->psz_iso639_2T[0];
p_stream->lang[1] = pl->psz_iso639_2T[1];
p_stream->lang[2] = pl->psz_iso639_2T[2];
msg_Dbg( p_mux, " - lang=%c%c%c",
p_stream->lang[0], p_stream->lang[1],
p_stream->lang[2] );
}
}
while( i < p_stream->i_langs ) {
if( p_input->p_fmt->p_extra_languages[i-1].psz_language )
{
char *psz = p_input->p_fmt->p_extra_languages[i-1].psz_language;
const iso639_lang_t *pl = NULL;
if( strlen( psz ) == 2 )
{
pl = GetLang_1( psz );
}
else if( strlen( psz ) == 3 )
{
pl = GetLang_2B( psz );
if( !strcmp( pl->psz_iso639_1, "??" ) )
{
pl = GetLang_2T( psz );
}
}
if( pl && strcmp( pl->psz_iso639_1, "??" ) )
{
p_stream->lang[i*3+0] = pl->psz_iso639_2T[0];
p_stream->lang[i*3+1] = pl->psz_iso639_2T[1];
p_stream->lang[i*3+2] = pl->psz_iso639_2T[2];
msg_Dbg( p_mux, " - lang=%c%c%c",
p_stream->lang[i*3+0], p_stream->lang[i*3+1],
p_stream->lang[i*3+2] );
}
}
i++;
}
/* Create decoder specific info for subt */
if( p_stream->i_codec == VLC_FOURCC( 's', 'u','b', 't' ) )
{
uint8_t *p;
p_stream->i_decoder_specific_info = 55;
p_stream->p_decoder_specific_info = p =
malloc( p_stream->i_decoder_specific_info );
if( p )
{
p[0] = 0x10; /* textFormat, 0x10 for 3GPP TS 26.245 */
p[1] = 0x00; /* flags: 1b: associated video info flag
3b: reserved
1b: duration flag
3b: reserved */
p[2] = 52; /* remaining size */
p += 3;
p[0] = p[1] = p[2] = p[3] = 0; p+=4; /* display flags */
*p++ = 0; /* horizontal justification (-1: left, 0 center, 1 right) */
*p++ = 1; /* vertical justification (-1: top, 0 center, 1 bottom) */
p[0] = p[1] = p[2] = 0x00; p+=3;/* background rgb */
*p++ = 0xff; /* background a */
p[0] = p[1] = 0; p += 2; /* text box top */
p[0] = p[1] = 0; p += 2; /* text box left */
p[0] = p[1] = 0; p += 2; /* text box bottom */
p[0] = p[1] = 0; p += 2; /* text box right */
p[0] = p[1] = 0; p += 2; /* start char */
p[0] = p[1] = 0; p += 2; /* end char */
p[0] = p[1] = 0; p += 2; /* default font id */
*p++ = 0; /* font style flags */
*p++ = 12; /* font size */
p[0] = p[1] = p[2] = 0x00; p+=3;/* foreground rgb */
*p++ = 0x00; /* foreground a */
p[0] = p[1] = p[2] = 0; p[3] = 22; p += 4;
memcpy( p, "ftab", 4 ); p += 4;
*p++ = 0; *p++ = 1; /* entry count */
p[0] = p[1] = 0; p += 2; /* font id */
*p++ = 9; /* font name length */
memcpy( p, "Helvetica", 9 ); /* font name */
}
else p_stream->i_decoder_specific_info = 0;
}
else
{
/* Copy extra data (VOL for MPEG-4 and extra BitMapInfoHeader for VFW */
p_stream->i_decoder_specific_info = p_input->p_fmt->i_extra;
if( p_stream->i_decoder_specific_info > 0 )
{
p_stream->p_decoder_specific_info =
malloc( p_stream->i_decoder_specific_info );
if( p_stream->p_decoder_specific_info )
{
memcpy( p_stream->p_decoder_specific_info,
p_input->p_fmt->p_extra,
p_input->p_fmt->i_extra );
}
else p_stream->i_decoder_specific_info = 0;
}
}
/* Init pes chain */
BufferChainInit( &p_stream->chain_pes );
p_stream->i_pes_dts = 0;
p_stream->i_pes_length = 0;
p_stream->i_pes_used = 0;
p_stream->b_key_frame = 0;
/* We only change PMT version (PAT isn't changed) */
p_sys->i_pmt_version_number = ( p_sys->i_pmt_version_number + 1 )%32;
/* Update pcr_pid */
if( p_input->p_fmt->i_cat != SPU_ES &&
( p_sys->i_pcr_pid == 0x1fff || p_input->p_fmt->i_cat == VIDEO_ES ) )
{
if( p_sys->p_pcr_input )
{
/* There was already a PCR stream, so clean context */
/* FIXME */
}
p_sys->i_pcr_pid = p_stream->i_pid;
p_sys->p_pcr_input = p_input;
msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
}
return VLC_SUCCESS;
}
/*****************************************************************************
* DelStream: called before a stream deletion
*****************************************************************************/
static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
ts_stream_t *p_stream;
vlc_value_t val;
p_stream = (ts_stream_t*)p_input->p_sys;
msg_Dbg( p_mux, "removing input pid=%d", p_stream->i_pid );
if( p_sys->i_pcr_pid == p_stream->i_pid )
{
int i;
/* Find a new pcr stream (Prefer Video Stream) */
p_sys->i_pcr_pid = 0x1fff;
p_sys->p_pcr_input = NULL;
for( i = 0; i < p_mux->i_nb_inputs; i++ )
{
if( p_mux->pp_inputs[i] == p_input )
{
continue;
}
if( p_mux->pp_inputs[i]->p_fmt->i_cat == VIDEO_ES )
{
p_sys->i_pcr_pid =
((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
p_sys->p_pcr_input= p_mux->pp_inputs[i];
break;
}
else if( p_mux->pp_inputs[i]->p_fmt->i_cat != SPU_ES &&
p_sys->i_pcr_pid == 0x1fff )
{
p_sys->i_pcr_pid =
((ts_stream_t*)p_mux->pp_inputs[i]->p_sys)->i_pid;
p_sys->p_pcr_input= p_mux->pp_inputs[i];
}
}
if( p_sys->p_pcr_input )
{
/* Empty TS buffer */
/* FIXME */
}
msg_Dbg( p_mux, "new PCR PID is %d", p_sys->i_pcr_pid );
}
/* Empty all data in chain_pes */
BufferChainClean( &p_stream->chain_pes );
if( p_stream->lang )
{
free(p_stream->lang);
}
if( p_stream->p_decoder_specific_info )
{
free( p_stream->p_decoder_specific_info );
}
if( p_stream->i_stream_id == 0xfa ||
p_stream->i_stream_id == 0xfb ||
p_stream->i_stream_id == 0xfe )
{
p_sys->i_mpeg4_streams--;
}
var_Get( p_mux, SOUT_CFG_PREFIX "pid-video", &val );
if( val.i_int > 0 )
{
int i_pid_video = val.i_int;
if ( i_pid_video == p_stream->i_pid )
{
p_sys->i_pid_video = i_pid_video;
msg_Dbg( p_mux, "freeing video PID %d", i_pid_video );
}
}
var_Get( p_mux, SOUT_CFG_PREFIX "pid-audio", &val );
if( val.i_int > 0 )
{
int i_pid_audio = val.i_int;
if ( i_pid_audio == p_stream->i_pid )
{
p_sys->i_pid_audio = i_pid_audio;
msg_Dbg( p_mux, "freeing audio PID %d", i_pid_audio );
}
}
var_Get( p_mux, SOUT_CFG_PREFIX "pid-spu", &val );
if( val.i_int > 0 )
{
int i_pid_spu = val.i_int;
if ( i_pid_spu == p_stream->i_pid )
{
p_sys->i_pid_spu = i_pid_spu;
msg_Dbg( p_mux, "freeing spu PID %d", i_pid_spu );
}
}
free( p_stream );
/* We only change PMT version (PAT isn't changed) */
p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
return VLC_SUCCESS;
}
/*****************************************************************************
* Mux: Call each time there is new data for at least one stream
*****************************************************************************
*
*****************************************************************************/
static int Mux( sout_mux_t *p_mux )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
ts_stream_t *p_pcr_stream;
if( p_sys->i_pcr_pid == 0x1fff )
{
int i;
for( i = 0; i < p_mux->i_nb_inputs; i++ )
{
block_FifoEmpty( p_mux->pp_inputs[i]->p_fifo );
}
msg_Dbg( p_mux, "waiting for PCR streams" );
msleep( 1000 );
return VLC_SUCCESS;
}
p_pcr_stream = (ts_stream_t*)p_sys->p_pcr_input->p_sys;
for( ;; )
{
sout_buffer_chain_t chain_ts;
int i_packet_count;
int i_packet_pos;
mtime_t i_pcr_dts;
mtime_t i_pcr_length;
mtime_t i_shaping_delay;
int i;
if( p_pcr_stream->b_key_frame )
{
i_shaping_delay = p_pcr_stream->i_pes_length;
}
else
{
i_shaping_delay = p_sys->i_shaping_delay;
}
/* 1: get enough PES packet for all input */
for( ;; )
{
vlc_bool_t b_ok = VLC_TRUE;
block_t *p_data;
/* Accumulate enough data in the pcr stream (>i_shaping_delay) */
/* Accumulate enough data in all other stream ( >= length of pcr)*/
for( i = -1; i < p_mux->i_nb_inputs; i++ )
{
sout_input_t *p_input;
ts_stream_t *p_stream;
int64_t i_spu_delay = 0;
if( i == -1 )
p_input = p_sys->p_pcr_input;
else if( p_mux->pp_inputs[i]->p_sys == p_pcr_stream )
continue;
else
p_input = p_mux->pp_inputs[i];
p_stream = (ts_stream_t*)p_input->p_sys;
if( ( ( p_stream == p_pcr_stream ) &&
( p_stream->i_pes_length < i_shaping_delay ) ) ||
( p_stream->i_pes_dts + p_stream->i_pes_length <
p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length ) )
{
/* Need more data */
if( block_FifoCount( p_input->p_fifo ) <= 1 )
{
if( ( p_input->p_fmt->i_cat == AUDIO_ES ) ||
( p_input->p_fmt->i_cat == VIDEO_ES ) )
{
/* We need more data */
return VLC_SUCCESS;
}
else if( block_FifoCount( p_input->p_fifo ) <= 0 )
{
/* spu, only one packet is needed */
continue;
}
else if( p_input->p_fmt->i_cat == SPU_ES )
{
/* Don't mux the SPU yet if it is too early */
block_t *p_spu = block_FifoShow( p_input->p_fifo );
i_spu_delay =
p_spu->i_dts - p_pcr_stream->i_pes_dts;
if( ( i_spu_delay > i_shaping_delay ) &&
( i_spu_delay < I64C(100000000) ) )
continue;
if ( ( i_spu_delay >= I64C(100000000) ) ||
( i_spu_delay < I64C(10000) ) )
{
BufferChainClean( &p_stream->chain_pes );
p_stream->i_pes_dts = 0;
p_stream->i_pes_used = 0;
p_stream->i_pes_length = 0;
continue;
}
}
}
b_ok = VLC_FALSE;
if( p_stream == p_pcr_stream || p_sys->b_data_alignment
|| p_input->p_fmt->i_codec !=
VLC_FOURCC('m', 'p', 'g', 'a') )
p_data = block_FifoGet( p_input->p_fifo );
else
p_data = FixPES( p_mux, p_input->p_fifo );
if( block_FifoCount( p_input->p_fifo ) > 0 &&
p_input->p_fmt->i_cat != SPU_ES )
{
block_t *p_next = block_FifoShow( p_input->p_fifo );
p_data->i_length = p_next->i_dts - p_data->i_dts;
}
else if( p_input->p_fmt->i_codec !=
VLC_FOURCC('s', 'u', 'b', 't' ) )
p_data->i_length = 1000;
if( ( p_pcr_stream->i_pes_dts > 0 &&
p_data->i_dts - 10000000 > p_pcr_stream->i_pes_dts +
p_pcr_stream->i_pes_length ) ||
p_data->i_dts < p_stream->i_pes_dts ||
( p_stream->i_pes_dts > 0 &&
p_input->p_fmt->i_cat != SPU_ES &&
p_data->i_dts - 10000000 > p_stream->i_pes_dts +
p_stream->i_pes_length ) )
{
msg_Warn( p_mux, "packet with too strange dts "
"(dts="I64Fd",old="I64Fd",pcr="I64Fd")",
p_data->i_dts, p_stream->i_pes_dts,
p_pcr_stream->i_pes_dts );
block_Release( p_data );
BufferChainClean( &p_stream->chain_pes );
p_stream->i_pes_dts = 0;
p_stream->i_pes_used = 0;
p_stream->i_pes_length = 0;
if( p_input->p_fmt->i_cat != SPU_ES )
{
BufferChainClean( &p_pcr_stream->chain_pes );
p_pcr_stream->i_pes_dts = 0;
p_pcr_stream->i_pes_used = 0;
p_pcr_stream->i_pes_length = 0;
}
}
else
{
int i_header_size = 0;
int b_data_alignment = 0;
if( p_input->p_fmt->i_cat == SPU_ES )
{
if( p_input->p_fmt->i_codec ==
VLC_FOURCC('s','u','b','t') )
{
/* Prepend header */
p_data = block_Realloc( p_data, 2,
p_data->i_buffer );
p_data->p_buffer[0] =
( (p_data->i_buffer - 2) >> 8) & 0xff;
p_data->p_buffer[1] =
( (p_data->i_buffer - 2) ) & 0xff;
/* remove trailling \0 if any */
if( p_data->i_buffer > 2 &&
p_data->p_buffer[p_data->i_buffer -1] ==
'\0' )
p_data->i_buffer--;
/* Append a empty sub (sub text only) */
if( p_data->i_length > 0 &&
!( p_data->i_buffer == 1 &&
*p_data->p_buffer == ' ' ) )
{
block_t *p_spu = block_New( p_mux, 3 );
p_spu->i_dts = p_spu->i_pts =
p_data->i_dts + p_data->i_length;
p_spu->i_length = 1000;
p_spu->p_buffer[0] = 0;
p_spu->p_buffer[1] = 1;
p_spu->p_buffer[2] = ' ';
E_(EStoPES)( p_mux->p_sout, &p_spu, p_spu,
p_input->p_fmt,
p_stream->i_stream_id, 1,
0, 0, 0 );
p_data->p_next = p_spu;
}
}
else if( p_input->p_fmt->i_codec ==
VLC_FOURCC('t','e','l','x') )
{
/* EN 300 472 */
i_header_size = 0x24;
b_data_alignment = 1;
}
else if( p_input->p_fmt->i_codec ==
VLC_FOURCC('d','v','b','s') )
{
/* EN 300 743 */
b_data_alignment = 1;
}
}
else if( p_data->i_length < 0 ||
p_data->i_length > 2000000 )
{
/* FIXME choose a better value, but anyway we
* should never have to do that */
p_data->i_length = 1000;
}
p_stream->i_pes_length += p_data->i_length;
if( p_stream->i_pes_dts == 0 )
{
p_stream->i_pes_dts = p_data->i_dts;
}
/* Convert to pes */
if( p_stream->i_stream_id == 0xa0 &&
p_data->i_pts <= 0 )
{
/* XXX yes I know, it's awful, but it's needed,
* so don't remove it ... */
p_data->i_pts = p_data->i_dts;
}
E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
p_input->p_fmt, p_stream->i_stream_id,
1, b_data_alignment, i_header_size, 0 );
BufferChainAppend( &p_stream->chain_pes, p_data );
if( p_sys->b_use_key_frames && p_stream == p_pcr_stream
&& (p_data->i_flags & BLOCK_FLAG_TYPE_I)
&& !(p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME)
&& (p_stream->i_pes_length > 400000) )
{
i_shaping_delay = p_stream->i_pes_length;
p_stream->b_key_frame = 1;
}
}
}
}
if( b_ok )
{
break;
}
}
/* save */
i_pcr_dts = p_pcr_stream->i_pes_dts;
i_pcr_length = p_pcr_stream->i_pes_length;
p_pcr_stream->b_key_frame = 0;
/* msg_Dbg( p_mux, "starting muxing %lldms", i_pcr_length / 1000 ); */
/* 2: calculate non accurate total size of muxed ts */
i_packet_count = 0;
for( i = 0; i < p_mux->i_nb_inputs; i++ )
{
ts_stream_t *p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
block_t *p_pes;
/* False for pcr stream but it will be enough to do PCR algo */
for( p_pes = p_stream->chain_pes.p_first; p_pes != NULL;
p_pes = p_pes->p_next )
{
int i_size = p_pes->i_buffer;
if( p_pes->i_dts + p_pes->i_length >
p_pcr_stream->i_pes_dts + p_pcr_stream->i_pes_length )
{
mtime_t i_frag = p_pcr_stream->i_pes_dts +
p_pcr_stream->i_pes_length - p_pes->i_dts;
if( i_frag < 0 )
{
/* Next stream */
break;
}
i_size = p_pes->i_buffer * i_frag / p_pes->i_length;
}
i_packet_count += ( i_size + 183 ) / 184;
}
}
/* add overhead for PCR (not really exact) */
i_packet_count += (8 * i_pcr_length / p_sys->i_pcr_delay + 175) / 176;
/* 3: mux PES into TS */
BufferChainInit( &chain_ts );
/* append PAT/PMT -> FIXME with big pcr delay it won't have enough pat/pmt */
GetPAT( p_mux, &chain_ts );
GetPMT( p_mux, &chain_ts );
i_packet_pos = 0;
i_packet_count += chain_ts.i_depth;
/* msg_Dbg( p_mux, "estimated pck=%d", i_packet_count ); */
for( ;; )
{
int i_stream;
mtime_t i_dts;
ts_stream_t *p_stream;
sout_input_t *p_input;
block_t *p_ts;
vlc_bool_t b_pcr;
/* Select stream (lowest dts) */
for( i = 0, i_stream = -1, i_dts = 0; i < p_mux->i_nb_inputs; i++ )
{
p_stream = (ts_stream_t*)p_mux->pp_inputs[i]->p_sys;
if( p_stream->i_pes_dts == 0 )
{
continue;
}
if( i_stream == -1 ||
p_stream->i_pes_dts < i_dts )
{
i_stream = i;
i_dts = p_stream->i_pes_dts;
}
}
if( i_stream == -1 || i_dts > i_pcr_dts + i_pcr_length )
{
break;
}
p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
p_input = p_mux->pp_inputs[i_stream];
/* do we need to issue pcr */
b_pcr = VLC_FALSE;
if( p_stream == p_pcr_stream &&
i_pcr_dts + i_packet_pos * i_pcr_length / i_packet_count >=
p_sys->i_pcr + p_sys->i_pcr_delay )
{
b_pcr = VLC_TRUE;
p_sys->i_pcr = i_pcr_dts + i_packet_pos *
i_pcr_length / i_packet_count;
}
/* Build the TS packet */
p_ts = TSNew( p_mux, p_stream, b_pcr );
if( p_sys->csa != NULL &&
(p_input->p_fmt->i_cat != AUDIO_ES || p_sys->b_crypt_audio) &&
(p_input->p_fmt->i_cat != VIDEO_ES || p_sys->b_crypt_video) )
{
p_ts->i_flags |= BLOCK_FLAG_SCRAMBLED;
}
i_packet_pos++;
/* */
BufferChainAppend( &chain_ts, p_ts );
}
/* 4: date and send */
TSSchedule( p_mux, &chain_ts, i_pcr_length, i_pcr_dts );
}
}
#define STD_PES_PAYLOAD 170
static block_t *FixPES( sout_mux_t *p_mux, block_fifo_t *p_fifo )
{
block_t *p_data;
int i_size;
p_data = block_FifoShow( p_fifo );
i_size = p_data->i_buffer;
if( i_size == STD_PES_PAYLOAD )
{
return block_FifoGet( p_fifo );
}
else if( i_size > STD_PES_PAYLOAD )
{
block_t *p_new = block_New( p_mux, STD_PES_PAYLOAD );
p_mux->p_libvlc->pf_memcpy( p_new->p_buffer, p_data->p_buffer, STD_PES_PAYLOAD );
p_new->i_pts = p_data->i_pts;
p_new->i_dts = p_data->i_dts;
p_new->i_length = p_data->i_length * STD_PES_PAYLOAD
/ p_data->i_buffer;
p_data->i_buffer -= STD_PES_PAYLOAD;
p_data->p_buffer += STD_PES_PAYLOAD;
p_data->i_pts += p_new->i_length;
p_data->i_dts += p_new->i_length;
p_data->i_length -= p_new->i_length;
p_data->i_flags |= BLOCK_FLAG_NO_KEYFRAME;
return p_new;
}
else
{
block_t *p_next;
int i_copy;
p_data = block_FifoGet( p_fifo );
p_data = block_Realloc( p_data, 0, STD_PES_PAYLOAD );
p_next = block_FifoShow( p_fifo );
if ( p_data->i_flags & BLOCK_FLAG_NO_KEYFRAME )
{
p_data->i_flags &= ~BLOCK_FLAG_NO_KEYFRAME;
p_data->i_pts = p_next->i_pts;
p_data->i_dts = p_next->i_dts;
}
i_copy = __MIN( STD_PES_PAYLOAD - i_size, p_next->i_buffer );
p_mux->p_libvlc->pf_memcpy( &p_data->p_buffer[i_size], p_next->p_buffer,
i_copy );
p_next->i_pts += p_next->i_length * i_copy / p_next->i_buffer;
p_next->i_dts += p_next->i_length * i_copy / p_next->i_buffer;
p_next->i_length -= p_next->i_length * i_copy / p_next->i_buffer;
p_next->i_buffer -= i_copy;
p_next->p_buffer += i_copy;
p_next->i_flags |= BLOCK_FLAG_NO_KEYFRAME;
if( !p_next->i_buffer )
{
p_next = block_FifoGet( p_fifo );
block_Release( p_next );
}
return p_data;
}
}
static void TSSchedule( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
mtime_t i_pcr_length, mtime_t i_pcr_dts )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
sout_buffer_chain_t new_chain;
int i_packet_count = p_chain_ts->i_depth;
int i;
BufferChainInit( &new_chain );
if ( i_pcr_length <= 0 )
{
i_pcr_length = i_packet_count;
}
for( i = 0; i < i_packet_count; i++ )
{
block_t *p_ts = BufferChainGet( p_chain_ts );
mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
BufferChainAppend( &new_chain, p_ts );
if( p_ts->i_dts &&
p_ts->i_dts + p_sys->i_dts_delay * 2/3 < i_new_dts )
{
mtime_t i_max_diff = i_new_dts - p_ts->i_dts;
mtime_t i_cut_dts = p_ts->i_dts;
p_ts = BufferChainPeek( p_chain_ts );
i++;
i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
while ( p_ts != NULL && i_new_dts - p_ts->i_dts >= i_max_diff )
{
p_ts = BufferChainGet( p_chain_ts );
i_max_diff = i_new_dts - p_ts->i_dts;
i_cut_dts = p_ts->i_dts;
BufferChainAppend( &new_chain, p_ts );
p_ts = BufferChainPeek( p_chain_ts );
i++;
i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
}
msg_Dbg( p_mux, "adjusting rate at "I64Fd"/"I64Fd" (%d/%d)",
i_cut_dts - i_pcr_dts, i_pcr_length, new_chain.i_depth,
p_chain_ts->i_depth );
if ( new_chain.i_depth )
TSDate( p_mux, &new_chain,
i_cut_dts - i_pcr_dts,
i_pcr_dts );
if ( p_chain_ts->i_depth )
TSSchedule( p_mux,
p_chain_ts, i_pcr_dts + i_pcr_length - i_cut_dts,
i_cut_dts );
return;
}
}
if ( new_chain.i_depth )
TSDate( p_mux, &new_chain, i_pcr_length, i_pcr_dts );
}
static void TSDate( sout_mux_t *p_mux, sout_buffer_chain_t *p_chain_ts,
mtime_t i_pcr_length, mtime_t i_pcr_dts )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
int i_packet_count = p_chain_ts->i_depth;
int i;
if ( i_pcr_length / 1000 > 0 )
{
int i_bitrate = ((uint64_t)i_packet_count * 188 * 8000)
/ (uint64_t)(i_pcr_length / 1000);
if ( p_sys->i_bitrate_max && p_sys->i_bitrate_max < i_bitrate )
{
msg_Warn( p_mux, "max bitrate exceeded at "I64Fd
" (%d bi/s for %d pkt in "I64Fd" us)",
i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
i_bitrate, i_packet_count, i_pcr_length);
}
#if 0
else
{
msg_Dbg( p_mux, "starting at "I64Fd
" (%d bi/s for %d packets in "I64Fd" us)",
i_pcr_dts + p_sys->i_shaping_delay * 3 / 2 - mdate(),
i_bitrate, i_packet_count, i_pcr_length);
}
#endif
}
else
{
/* This shouldn't happen, but happens in some rare heavy load
* and packet losses conditions. */
i_pcr_length = i_packet_count;
}
/* msg_Dbg( p_mux, "real pck=%d", i_packet_count ); */
for( i = 0; i < i_packet_count; i++ )
{
block_t *p_ts = BufferChainGet( p_chain_ts );
mtime_t i_new_dts = i_pcr_dts + i_pcr_length * i / i_packet_count;
p_ts->i_dts = i_new_dts;
p_ts->i_length = i_pcr_length / i_packet_count;
if( p_ts->i_flags & BLOCK_FLAG_CLOCK )
{
/* msg_Dbg( p_mux, "pcr=%lld ms", p_ts->i_dts / 1000 ); */
TSSetPCR( p_ts, p_ts->i_dts - p_sys->i_dts_delay );
}
if( p_ts->i_flags & BLOCK_FLAG_SCRAMBLED )
{
csa_Encrypt( p_sys->csa, p_ts->p_buffer, p_sys->i_csa_pkt_size, 0 );
}
/* latency */
p_ts->i_dts += p_sys->i_shaping_delay * 3 / 2;
sout_AccessOutWrite( p_mux->p_access, p_ts );
}
}
static block_t *TSNew( sout_mux_t *p_mux, ts_stream_t *p_stream,
vlc_bool_t b_pcr )
{
block_t *p_pes = p_stream->chain_pes.p_first;
block_t *p_ts;
vlc_bool_t b_new_pes = VLC_FALSE;
vlc_bool_t b_adaptation_field = VLC_FALSE;
int i_payload_max = 184 - ( b_pcr ? 8 : 0 );
int i_payload;
if( p_stream->i_pes_used <= 0 )
{
b_new_pes = VLC_TRUE;
}
i_payload = __MIN( (int)p_pes->i_buffer - p_stream->i_pes_used,
i_payload_max );
if( b_pcr || i_payload < i_payload_max )
{
b_adaptation_field = VLC_TRUE;
}
p_ts = block_New( p_mux, 188 );
p_ts->i_dts = p_pes->i_dts;
p_ts->p_buffer[0] = 0x47;
p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 ) |
( ( p_stream->i_pid >> 8 )&0x1f );
p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 ) |
p_stream->i_continuity_counter;
p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
p_stream->b_discontinuity = (p_pes->i_flags & BLOCK_FLAG_DISCONTINUITY);
if( b_adaptation_field )
{
int i;
if( b_pcr )
{
int i_stuffing = i_payload_max - i_payload;
p_ts->i_flags |= BLOCK_FLAG_CLOCK;
p_ts->p_buffer[4] = 7 + i_stuffing;
p_ts->p_buffer[5] = 0x10; /* flags */
if( p_stream->b_discontinuity )
{
p_ts->p_buffer[5] |= 0x80; /* flag TS dicontinuity */
p_stream->b_discontinuity = VLC_FALSE;
}
p_ts->p_buffer[6] = ( 0 )&0xff;
p_ts->p_buffer[7] = ( 0 )&0xff;
p_ts->p_buffer[8] = ( 0 )&0xff;
p_ts->p_buffer[9] = ( 0 )&0xff;
p_ts->p_buffer[10]= ( ( 0 )&0x80 ) | 0x7e;
p_ts->p_buffer[11]= 0;
for( i = 12; i < 12 + i_stuffing; i++ )
{
p_ts->p_buffer[i] = 0xff;
}
}
else
{
int i_stuffing = i_payload_max - i_payload;
p_ts->p_buffer[4] = i_stuffing - 1;
if( i_stuffing > 1 )
{
p_ts->p_buffer[5] = 0x00;
for( i = 6; i < 6 + i_stuffing - 2; i++ )
{
p_ts->p_buffer[i] = 0xff;
}
}
}
}
/* copy payload */
memcpy( &p_ts->p_buffer[188 - i_payload],
&p_pes->p_buffer[p_stream->i_pes_used], i_payload );
p_stream->i_pes_used += i_payload;
p_stream->i_pes_dts = p_pes->i_dts + p_pes->i_length *
p_stream->i_pes_used / p_pes->i_buffer;
p_stream->i_pes_length -= p_pes->i_length * i_payload / p_pes->i_buffer;
if( p_stream->i_pes_used >= (int)p_pes->i_buffer )
{
p_pes = BufferChainGet( &p_stream->chain_pes );
block_Release( p_pes );
p_pes = p_stream->chain_pes.p_first;
if( p_pes )
{
p_stream->i_pes_dts = p_pes->i_dts;
p_stream->i_pes_length = 0;
while( p_pes )
{
p_stream->i_pes_length += p_pes->i_length;
p_pes = p_pes->p_next;
}
}
else
{
p_stream->i_pes_dts = 0;
p_stream->i_pes_length = 0;
}
p_stream->i_pes_used = 0;
}
return p_ts;
}
static void TSSetPCR( block_t *p_ts, mtime_t i_dts )
{
mtime_t i_pcr = 9 * i_dts / 100;
p_ts->p_buffer[6] = ( i_pcr >> 25 )&0xff;
p_ts->p_buffer[7] = ( i_pcr >> 17 )&0xff;
p_ts->p_buffer[8] = ( i_pcr >> 9 )&0xff;
p_ts->p_buffer[9] = ( i_pcr >> 1 )&0xff;
p_ts->p_buffer[10]|= ( i_pcr << 7 )&0x80;
}
#if 0
static void TSSetConstraints( sout_mux_t *p_mux, sout_buffer_chain_t *c,
mtime_t i_length, int i_bitrate_min,
int i_bitrate_max )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
sout_buffer_chain_t s = *c;
int i_packets = 0;
int i_packets_min = 0;
int i_packets_max = 0;
if( i_length <= 0 )
{
return;
}
i_packets = c->i_depth;
i_packets_min = ( (int64_t)i_bitrate_min * i_length / 8 / 1000000 + 187 ) / 188;
i_packets_max = ( (int64_t)i_bitrate_max * i_length / 8 / 1000000 + 187 ) / 188;
if( i_packets < i_packets_min && i_packets_min > 0 )
{
block_t *p_pk;
int i_div = ( i_packets_min - i_packets ) / i_packets;
int i_mod = ( i_packets_min - i_packets ) % i_packets;
int i_rest = 0;
/* We need to pad with null packets (pid=0x1fff)
* We try to melt null packets with true packets */
msg_Dbg( p_mux,
"packets=%d but min=%d -> adding %d packets of padding",
i_packets, i_packets_min, i_packets_min - i_packets );
BufferChainInit( c );
while( ( p_pk = BufferChainGet( &s ) ) )
{
int i, i_null;
BufferChainAppend( c, p_pk );
i_null = i_div + ( i_rest + i_mod ) / i_packets;
for( i = 0; i < i_null; i++ )
{
block_t *p_null;
p_null = sout_BufferNew( p_mux->p_sout, 188 );
p_null->p_buffer[0] = 0x47;
p_null->p_buffer[1] = 0x1f;
p_null->p_buffer[2] = 0xff;
p_null->p_buffer[3] = 0x10 | p_sys->i_null_continuity_counter;
memset( &p_null->p_buffer[4], 0, 184 );
p_sys->i_null_continuity_counter =
( p_sys->i_null_continuity_counter + 1 ) % 16;
BufferChainAppend( c, p_null );
}
i_rest = ( i_rest + i_mod ) % i_packets;
}
}
else if( i_packets > i_packets_max && i_packets_max > 0 )
{
block_t *p_pk;
int i;
/* Arg, we need to drop packets, I don't do something clever (like
* dropping complete pid, b frames, ... ), I just get the right amount
* of packets and discard the others */
msg_Warn( p_mux,
"packets=%d but max=%d -> removing %d packets -> stream broken",
i_packets, i_packets_max, i_packets - i_packets_max );
BufferChainInit( c );
for( i = 0; i < i_packets_max; i++ )
{
BufferChainAppend( c, BufferChainGet( &s ) );
}
while( ( p_pk = BufferChainGet( &s ) ) )
{
sout_BufferDelete( p_mux->p_sout, p_pk );
}
}
}
#endif
static void PEStoTS( sout_instance_t *p_sout,
sout_buffer_chain_t *c, block_t *p_pes,
ts_stream_t *p_stream )
{
uint8_t *p_data;
int i_size;
int b_new_pes;
/* get PES total size */
i_size = p_pes->i_buffer;
p_data = p_pes->p_buffer;
b_new_pes = VLC_TRUE;
for( ;; )
{
int b_adaptation_field;
int i_copy;
block_t *p_ts;
p_ts = block_New( p_sout, 188 );
/* write header
* 8b 0x47 sync byte
* 1b transport_error_indicator
* 1b payload_unit_start
* 1b transport_priority
* 13b pid
* 2b transport_scrambling_control
* 2b if adaptation_field 0x03 else 0x01
* 4b continuity_counter
*/
i_copy = __MIN( i_size, 184 );
b_adaptation_field = i_size < 184 ? VLC_TRUE : VLC_FALSE;
p_ts->p_buffer[0] = 0x47;
p_ts->p_buffer[1] = ( b_new_pes ? 0x40 : 0x00 )|
( ( p_stream->i_pid >> 8 )&0x1f );
p_ts->p_buffer[2] = p_stream->i_pid & 0xff;
p_ts->p_buffer[3] = ( b_adaptation_field ? 0x30 : 0x10 )|
p_stream->i_continuity_counter;
b_new_pes = VLC_FALSE;
p_stream->i_continuity_counter = (p_stream->i_continuity_counter+1)%16;
if( b_adaptation_field )
{
int i_stuffing = 184 - i_copy;
int i;
p_ts->p_buffer[4] = i_stuffing - 1;
if( i_stuffing > 1 )
{
p_ts->p_buffer[5] = 0x00;
if( p_stream->b_discontinuity )
{
p_ts->p_buffer[5] |= 0x80;
p_stream->b_discontinuity = VLC_FALSE;
}
for( i = 6; i < 6 + i_stuffing - 2; i++ )
{
p_ts->p_buffer[i] = 0xff;
}
}
}
/* copy payload */
memcpy( &p_ts->p_buffer[188 - i_copy], p_data, i_copy );
p_data += i_copy;
i_size -= i_copy;
BufferChainAppend( c, p_ts );
if( i_size <= 0 )
{
block_t *p_next = p_pes->p_next;
p_pes->p_next = NULL;
block_Release( p_pes );
if( p_next == NULL )
{
break;
}
b_new_pes = VLC_TRUE;
p_pes = p_next;
i_size = p_pes->i_buffer;
p_data = p_pes->p_buffer;
}
}
return;
}
static block_t *WritePSISection( sout_instance_t *p_sout,
dvbpsi_psi_section_t* p_section )
{
block_t *p_psi, *p_first = NULL;
while( p_section )
{
int i_size;
i_size = (uint32_t)( p_section->p_payload_end - p_section->p_data )+
( p_section->b_syntax_indicator ? 4 : 0 );
p_psi = block_New( p_sout, i_size + 1 );
p_psi->i_pts = 0;
p_psi->i_dts = 0;
p_psi->i_length = 0;
p_psi->i_buffer = i_size + 1;
p_psi->p_buffer[0] = 0; /* pointer */
memcpy( p_psi->p_buffer + 1,
p_section->p_data,
i_size );
block_ChainAppend( &p_first, p_psi );
p_section = p_section->p_next;
}
return( p_first );
}
static void GetPAT( sout_mux_t *p_mux,
sout_buffer_chain_t *c )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
block_t *p_pat;
dvbpsi_pat_t pat;
dvbpsi_psi_section_t *p_section;
int i;
dvbpsi_InitPAT( &pat, p_sys->i_tsid, p_sys->i_pat_version_number,
1 ); /* b_current_next */
/* add all programs */
for ( i = 0; i < p_sys->i_num_pmt; i++ )
dvbpsi_PATAddProgram( &pat,
p_sys->i_pmt_program_number[i],
p_sys->pmt[i].i_pid );
p_section = dvbpsi_GenPATSections( &pat,
0 ); /* max program per section */
p_pat = WritePSISection( p_mux->p_sout, p_section );
PEStoTS( p_mux->p_sout, c, p_pat, &p_sys->pat );
dvbpsi_DeletePSISections( p_section );
dvbpsi_EmptyPAT( &pat );
}
static uint32_t GetDescriptorLength24b( int i_length )
{
uint32_t i_l1, i_l2, i_l3;
i_l1 = i_length&0x7f;
i_l2 = ( i_length >> 7 )&0x7f;
i_l3 = ( i_length >> 14 )&0x7f;
return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
}
static void GetPMT( sout_mux_t *p_mux, sout_buffer_chain_t *c )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
block_t *p_pmt[MAX_PMT];
dvbpsi_pmt_es_t *p_es;
dvbpsi_psi_section_t *p_section[MAX_PMT];
int i_pidinput;
int i_stream;
int i;
int *p_usepid = NULL;
#ifdef HAVE_DVBPSI_SDT
block_t *p_sdt;
dvbpsi_sdt_t sdt;
dvbpsi_psi_section_t* p_section2;
dvbpsi_sdt_service_t *p_service;
uint8_t *psz_sdt_desc;
#endif
if( p_sys->dvbpmt == NULL )
{
p_sys->dvbpmt = malloc( p_sys->i_num_pmt * sizeof(dvbpsi_pmt_t) );
if( !p_sys->dvbpmt )
{
return;
}
}
#ifdef HAVE_DVBPSI_SDT
if( p_sys->b_sdt )
dvbpsi_InitSDT( &sdt, p_sys->i_tsid, 1, 1, p_sys->i_netid );
#endif
for( i = 0; i < p_sys->i_num_pmt; i++ )
{
dvbpsi_InitPMT( &p_sys->dvbpmt[i],
p_sys->i_pmt_program_number[i], /* program number */
p_sys->i_pmt_version_number,
1, /* b_current_next */
p_sys->i_pcr_pid );
#ifdef HAVE_DVBPSI_SDT
if( p_sys->b_sdt )
{
p_service = dvbpsi_SDTAddService( &sdt,
p_sys->i_pmt_program_number[i], /* service id */
0, /* eit schedule */
0, /* eit present */
4, /* running status ("4=RUNNING") */
0 ); /* free ca */
#define psz_sdtprov p_sys->sdt_descriptors[i].psz_provider
#define psz_sdtserv p_sys->sdt_descriptors[i].psz_service_name
/* FIXME: Ineffecient malloc's & ugly code...... */
if( ( psz_sdtprov != NULL ) && ( psz_sdtserv != NULL ) )
{
psz_sdt_desc = malloc( 3 + strlen(psz_sdtprov)
+ strlen(psz_sdtserv) );
if( psz_sdt_desc )
{
psz_sdt_desc[0] = 0x01; /* digital television service */
/* service provider name length */
psz_sdt_desc[1] = (char)strlen(psz_sdtprov);
memcpy( &psz_sdt_desc[2], psz_sdtprov, strlen(psz_sdtprov) );
/* service name length */
psz_sdt_desc[ 2 + strlen(psz_sdtprov) ]
= (char)strlen(psz_sdtserv);
memcpy( &psz_sdt_desc[3+strlen(psz_sdtprov)], psz_sdtserv,
strlen(psz_sdtserv) );
dvbpsi_SDTServiceAddDescriptor( p_service, 0x48,
3 + strlen(psz_sdtprov) + strlen(psz_sdtserv),
(uint8_t *)psz_sdt_desc );
free( psz_sdt_desc );
psz_sdt_desc = NULL;
}
}
#undef psz_sdtprov
#undef psz_sdtserv
}
#endif
}
if( p_sys->i_mpeg4_streams > 0 )
{
uint8_t iod[4096];
bits_buffer_t bits;
bits_buffer_t bits_fix_IOD;
/* Make valgrind happy : it works at byte level not bit one so
* bit_write confuse it (but DON'T CHANGE the way that bit_write is
* working (needed when fixing some bits) */
memset( iod, 0, 4096 );
bits_initwrite( &bits, 4096, iod );
/* IOD_label_scope */
bits_write( &bits, 8, 0x11 );
/* IOD_label */
bits_write( &bits, 8, 0x01 );
/* InitialObjectDescriptor */
bits_align( &bits );
bits_write( &bits, 8, 0x02 ); /* tag */
bits_fix_IOD = bits; /* save states to fix length later */
bits_write( &bits, 24,
GetDescriptorLength24b( 0 ) ); /* variable length (fixed later) */
bits_write( &bits, 10, 0x01 ); /* ObjectDescriptorID */
bits_write( &bits, 1, 0x00 ); /* URL Flag */
bits_write( &bits, 1, 0x00 ); /* includeInlineProfileLevelFlag */
bits_write( &bits, 4, 0x0f ); /* reserved */
bits_write( &bits, 8, 0xff ); /* ODProfile (no ODcapability ) */
bits_write( &bits, 8, 0xff ); /* sceneProfile */
bits_write( &bits, 8, 0xfe ); /* audioProfile (unspecified) */
bits_write( &bits, 8, 0xfe ); /* visualProfile( // ) */
bits_write( &bits, 8, 0xff ); /* graphicProfile (no ) */
for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
{
ts_stream_t *p_stream;
p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
if( p_stream->i_stream_id == 0xfa ||
p_stream->i_stream_id == 0xfb ||
p_stream->i_stream_id == 0xfe )
{
bits_buffer_t bits_fix_ESDescr, bits_fix_Decoder;
/* ES descriptor */
bits_align( &bits );
bits_write( &bits, 8, 0x03 ); /* ES_DescrTag */
bits_fix_ESDescr = bits;
bits_write( &bits, 24,
GetDescriptorLength24b( 0 ) ); /* variable size */
bits_write( &bits, 16, p_stream->i_es_id );
bits_write( &bits, 1, 0x00 ); /* streamDependency */
bits_write( &bits, 1, 0x00 ); /* URL Flag */
bits_write( &bits, 1, 0x00 ); /* OCRStreamFlag */
bits_write( &bits, 5, 0x1f ); /* streamPriority */
/* DecoderConfigDesciptor */
bits_align( &bits );
bits_write( &bits, 8, 0x04 ); /* DecoderConfigDescrTag */
bits_fix_Decoder = bits;
bits_write( &bits, 24, GetDescriptorLength24b( 0 ) );
if( p_stream->i_stream_type == 0x10 )
{
bits_write( &bits, 8, 0x20 ); /* Visual 14496-2 */
bits_write( &bits, 6, 0x04 ); /* VisualStream */
}
else if( p_stream->i_stream_type == 0x1b )
{
bits_write( &bits, 8, 0x21 ); /* Visual 14496-2 */
bits_write( &bits, 6, 0x04 ); /* VisualStream */
}
else if( p_stream->i_stream_type == 0x11 || p_stream->i_stream_type == 0x0f )
{
bits_write( &bits, 8, 0x40 ); /* Audio 14496-3 */
bits_write( &bits, 6, 0x05 ); /* AudioStream */
}
else if( p_stream->i_stream_type == 0x12 &&
p_stream->i_codec == VLC_FOURCC('s','u','b','t') )
{
bits_write( &bits, 8, 0x0B ); /* Text Stream */
bits_write( &bits, 6, 0x04 ); /* VisualStream */
}
else
{
bits_write( &bits, 8, 0x00 );
bits_write( &bits, 6, 0x00 );
msg_Err( p_mux->p_sout,"Unsupported stream_type => "
"broken IOD" );
}
bits_write( &bits, 1, 0x00 ); /* UpStream */
bits_write( &bits, 1, 0x01 ); /* reserved */
bits_write( &bits, 24, 1024 * 1024 ); /* bufferSizeDB */
bits_write( &bits, 32, 0x7fffffff ); /* maxBitrate */
bits_write( &bits, 32, 0 ); /* avgBitrate */
if( p_stream->i_decoder_specific_info > 0 )
{
int i;
/* DecoderSpecificInfo */
bits_align( &bits );
bits_write( &bits, 8, 0x05 ); /* tag */
bits_write( &bits, 24, GetDescriptorLength24b(
p_stream->i_decoder_specific_info ) );
for( i = 0; i < p_stream->i_decoder_specific_info; i++ )
{
bits_write( &bits, 8,
((uint8_t*)p_stream->p_decoder_specific_info)[i] );
}
}
/* fix Decoder length */
bits_write( &bits_fix_Decoder, 24,
GetDescriptorLength24b( bits.i_data -
bits_fix_Decoder.i_data - 3 ) );
/* SLConfigDescriptor : predefined (0x01) */
bits_align( &bits );
bits_write( &bits, 8, 0x06 ); /* tag */
bits_write( &bits, 24, GetDescriptorLength24b( 8 ) );
bits_write( &bits, 8, 0x01 );/* predefined */
bits_write( &bits, 1, 0 ); /* durationFlag */
bits_write( &bits, 32, 0 ); /* OCRResolution */
bits_write( &bits, 8, 0 ); /* OCRLength */
bits_write( &bits, 8, 0 ); /* InstantBitrateLength */
bits_align( &bits );
/* fix ESDescr length */
bits_write( &bits_fix_ESDescr, 24,
GetDescriptorLength24b( bits.i_data -
bits_fix_ESDescr.i_data - 3 ) );
}
}
bits_align( &bits );
/* fix IOD length */
bits_write( &bits_fix_IOD, 24,
GetDescriptorLength24b( bits.i_data -
bits_fix_IOD.i_data - 3 ) );
#if 0//def HAVE_BSEARCH /* FIXME!!! This can't possibly work */
i_pidinput = p_mux->pp_inputs[i]->p_fmt->i_id;
p_usepid = bsearch( &i_pidinput, p_sys->pmtmap, p_sys->i_pmtslots,
sizeof(pmt_map_t), intcompare );
p_usepid = bsearch( &p_usepid, p_sys->pmtmap, p_sys->i_num_pmt,
sizeof(pmt_map_t), pmtcompare );
if( p_usepid != NULL )
dvbpsi_PMTAddDescriptor(
&p_sys->dvbpmt[((pmt_map_t *)p_usepid)->i_prog], 0x1d,
bits.i_data, bits.p_data );
else
msg_Err( p_mux, "Received an unmapped PID" );
#else
dvbpsi_PMTAddDescriptor( &p_sys->dvbpmt[0], 0x1d, bits.i_data,
bits.p_data );
#endif
}
for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
{
ts_stream_t *p_stream;
p_stream = (ts_stream_t *)p_mux->pp_inputs[i_stream]->p_sys;
#ifdef HAVE_BSEARCH
i_pidinput = p_mux->pp_inputs[i_stream]->p_fmt->i_id;
p_usepid = bsearch( &i_pidinput, p_sys->pmtmap, p_sys->i_pmtslots,
sizeof(pmt_map_t), intcompare );
if( p_usepid != NULL )
p_es = dvbpsi_PMTAddES(
&p_sys->dvbpmt[((pmt_map_t *)p_usepid)->i_prog],
p_stream->i_stream_type, p_stream->i_pid );
else
/* If there's an error somewhere, dump it to the first pmt */
#endif
p_es = dvbpsi_PMTAddES( &p_sys->dvbpmt[0], p_stream->i_stream_type,
p_stream->i_pid );
if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
{
uint8_t es_id[2];
/* SL descriptor */
es_id[0] = (p_stream->i_es_id >> 8)&0xff;
es_id[1] = (p_stream->i_es_id)&0xff;
dvbpsi_PMTESAddDescriptor( p_es, 0x1f, 2, es_id );
}
else if( p_stream->i_stream_type == 0xa0 )
{
uint8_t data[512];
int i_extra = __MIN( p_stream->i_decoder_specific_info, 502 );
/* private DIV3 descripor */
memcpy( &data[0], &p_stream->i_bih_codec, 4 );
data[4] = ( p_stream->i_bih_width >> 8 )&0xff;
data[5] = ( p_stream->i_bih_width )&0xff;
data[6] = ( p_stream->i_bih_height>> 8 )&0xff;
data[7] = ( p_stream->i_bih_height )&0xff;
data[8] = ( i_extra >> 8 )&0xff;
data[9] = ( i_extra )&0xff;
if( i_extra > 0 )
{
memcpy( &data[10], p_stream->p_decoder_specific_info, i_extra );
}
/* 0xa0 is private */
dvbpsi_PMTESAddDescriptor( p_es, 0xa0, i_extra + 10, data );
}
else if( p_stream->i_stream_type == 0x81 )
{
uint8_t format[4] = { 0x41, 0x43, 0x2d, 0x33 };
/* "registration" descriptor : "AC-3" */
dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, format );
}
else if( p_stream->i_codec == VLC_FOURCC('d','t','s',' ') )
{
/* DTS registration descriptor (ETSI TS 101 154 Annex F) */
/* DTS format identifier, frame size 1024 - FIXME */
uint8_t data[4] = { 0x44, 0x54, 0x53, 0x32 };
dvbpsi_PMTESAddDescriptor( p_es, 0x05, 4, data );
}
else if( p_stream->i_codec == VLC_FOURCC('t','e','l','x') )
{
if( p_stream->i_decoder_specific_info )
{
dvbpsi_PMTESAddDescriptor( p_es, 0x56,
p_stream->i_decoder_specific_info,
p_stream->p_decoder_specific_info );
}
continue;
}
else if( p_stream->i_codec == VLC_FOURCC('d','v','b','s') )
{
/* DVB subtitles */
if( p_stream->i_decoder_specific_info )
{
/* pass-through from the TS demux */
dvbpsi_PMTESAddDescriptor( p_es, 0x59,
p_stream->i_decoder_specific_info,
p_stream->p_decoder_specific_info );
}
#ifdef _DVBPSI_DR_59_H_
else
{
/* from the dvbsub transcoder */
dvbpsi_subtitling_dr_t descr;
dvbpsi_subtitle_t sub;
dvbpsi_descriptor_t *p_descr;
memcpy( sub.i_iso6392_language_code, p_stream->lang, 3 );
sub.i_subtitling_type = 0x10; /* no aspect-ratio criticality */
sub.i_composition_page_id = p_stream->i_es_id & 0xFF;
sub.i_ancillary_page_id = p_stream->i_es_id >> 16;
descr.i_subtitles_number = 1;
descr.p_subtitle[0] = sub;
p_descr = dvbpsi_GenSubtitlingDr( &descr, 0 );
/* Work around bug in old libdvbpsi */ p_descr->i_length = 8;
dvbpsi_PMTESAddDescriptor( p_es, p_descr->i_tag,
p_descr->i_length, p_descr->p_data );
}
#endif /* _DVBPSI_DR_59_H_ */
continue;
}
if( p_stream->lang[0] != 0 )
{
uint8_t data[4*p_stream->i_langs];
/* I construct the content myself, way faster than looking at
* over complicated/mind broken libdvbpsi way */
for(i = 0; i < p_stream->i_langs; i++ )
{
data[i*4+0] = p_stream->lang[i*3+0];
data[i*4+1] = p_stream->lang[i*3+1];
data[i*4+2] = p_stream->lang[i*3+2];
data[i*4+3] = 0x00; /* audio type: 0x00 undefined */
}
dvbpsi_PMTESAddDescriptor( p_es, 0x0a, 4*p_stream->i_langs, data );
}
}
for( i = 0; i < p_sys->i_num_pmt; i++ )
{
p_section[i] = dvbpsi_GenPMTSections( &p_sys->dvbpmt[i] );
p_pmt[i] = WritePSISection( p_mux->p_sout, p_section[i] );
PEStoTS( p_mux->p_sout, c, p_pmt[i], &p_sys->pmt[i] );
dvbpsi_DeletePSISections( p_section[i] );
dvbpsi_EmptyPMT( &p_sys->dvbpmt[i] );
}
#ifdef HAVE_DVBPSI_SDT
if( p_sys->b_sdt )
{
p_section2 = dvbpsi_GenSDTSections( &sdt );
p_sdt = WritePSISection( p_mux->p_sout, p_section2 );
PEStoTS( p_mux->p_sout, c, p_sdt, &p_sys->sdt );
dvbpsi_DeletePSISections( p_section2 );
dvbpsi_EmptySDT( &sdt );
}
#endif
}