ts.c 35.2 KB
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/*****************************************************************************
 * ts.c
 *****************************************************************************
 * Copyright (C) 2001, 2002 VideoLAN
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 * $Id: ts.c,v 1.20 2003/05/31 21:49:12 fenrir Exp $
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 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
 *          Eric Petit <titer@videolan.org>
 *
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>

#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/sout.h>

#ifdef HAVE_UNISTD_H
#   include <unistd.h>
#endif

#include "codecs.h"
#include "bits.h"
#include "pes.h"

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#if defined MODULE_NAME_IS_mux_ts_dvbpsi
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#   ifdef HAVE_DVBPSI_DR_H
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#       include <dvbpsi/dvbpsi.h>
#       include <dvbpsi/descriptor.h>
#       include <dvbpsi/pat.h>
#       include <dvbpsi/pmt.h>
#       include <dvbpsi/dr.h>
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#       include <dvbpsi/psi.h>
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#   else
#       include "dvbpsi.h"
#       include "descriptor.h"
#       include "tables/pat.h"
#       include "tables/pmt.h"
#       include "descriptors/dr.h"
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#       include "psi.h"
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#   endif
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#endif

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typedef struct ts_stream_s
{
    int             i_pid;
    int             i_stream_type;
    int             i_stream_id;
    int             i_continuity_counter;
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    /* to be used for carriege of DIV3 */
    vlc_fourcc_t    i_bih_codec;
    int             i_bih_width, i_bih_height;

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    /* Specific to mpeg4 in mpeg2ts */
    int             i_es_id;
    int             i_sl_predefined;

    int             i_decoder_specific_info_len;
    uint8_t         *p_decoder_specific_info;
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} ts_stream_t;

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struct sout_mux_sys_t
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{
    int             i_pcr_pid;
    int             i_stream_id_mpga;
    int             i_stream_id_mpgv;
    int             i_stream_id_a52;

    int             i_audio_bound;
    int             i_video_bound;

    int             i_pid_free; // first usable pid

    int             i_pat_version_number;
    ts_stream_t     pat;

    int             i_pmt_version_number;
    ts_stream_t     pmt;        // Up to now only one program

    int             i_ts_packet;// To known when to put pat/mpt
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    int             i_mpeg4_streams;

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};
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/*****************************************************************************
 * Exported prototypes
 *****************************************************************************/
static int     Open   ( vlc_object_t * );
static void    Close  ( vlc_object_t * );

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static int     Capability(sout_mux_t *, int, void *, void * );
static int     AddStream( sout_mux_t *, sout_input_t * );
static int     DelStream( sout_mux_t *, sout_input_t * );
static int     Mux      ( sout_mux_t * );
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/* Reserve a pid and return it */
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static int     AllocatePID( sout_mux_sys_t *p_sys )
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{
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    return( ++p_sys->i_pid_free );
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}

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static int GetPAT( sout_mux_t *p_mux, sout_buffer_t **pp_ts );
static int GetPMT( sout_mux_t *p_mux, sout_buffer_t **pp_ts );
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/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
vlc_module_begin();
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#if defined MODULE_NAME_IS_mux_ts
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    set_description( _("TS muxer") );
    set_capability( "sout mux", 100 );
    add_shortcut( "ts" );
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    add_shortcut( "ts_nodvbpsi" );
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#elif defined MODULE_NAME_IS_mux_ts_dvbpsi
    set_description( _("TS muxer (libdvbpsi)") );
    set_capability( "sout mux", 120 );
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    add_shortcut( "ts" );
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    add_shortcut( "ts_dvbpsi" );
#endif
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    set_callbacks( Open, Close );
vlc_module_end();

/*****************************************************************************
 * Open:
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
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    sout_mux_t          *p_mux =(sout_mux_t*)p_this;
    sout_mux_sys_t      *p_sys;
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    msg_Info( p_mux, "Open" );
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    p_sys = malloc( sizeof( sout_mux_sys_t ) );
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    p_mux->pf_capacity  = Capability;
    p_mux->pf_addstream = AddStream;
    p_mux->pf_delstream = DelStream;
    p_mux->pf_mux       = Mux;
    p_mux->p_sys        = p_sys;
    p_mux->i_preheader  = 30; // really enough for a pes header
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    srand( (uint32_t)mdate() );

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    p_sys->i_stream_id_mpga = 0xc0;
    p_sys->i_stream_id_a52  = 0x80;
    p_sys->i_stream_id_mpgv = 0xe0;
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    p_sys->i_audio_bound = 0;
    p_sys->i_video_bound = 0;
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    p_sys->i_pat_version_number = rand() % 32;
    p_sys->pat.i_pid = 0;
    p_sys->pat.i_continuity_counter = 0;
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    p_sys->i_pmt_version_number = rand() % 32;
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    p_sys->pmt.i_pid = 0x42;
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    p_sys->pmt.i_continuity_counter = 0;
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    p_sys->i_pid_free = 0x43;
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    p_sys->i_pcr_pid = 0x1fff;
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    p_sys->i_mpeg4_streams = 0;
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    return VLC_SUCCESS;
}

/*****************************************************************************
 * Close:
 *****************************************************************************/

static void Close( vlc_object_t * p_this )
{
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    sout_mux_t          *p_mux = (sout_mux_t*)p_this;
    sout_mux_sys_t      *p_sys = p_mux->p_sys;
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    msg_Info( p_mux, "Close" );
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    free( p_sys );
    p_mux->p_sys = NULL;
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}

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static int Capability( sout_mux_t *p_mux, int i_query, void *p_args, void *p_answer )
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{
   switch( i_query )
   {
        case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
            *(vlc_bool_t*)p_answer = VLC_TRUE;
            return( SOUT_MUX_CAP_ERR_OK );
        default:
            return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
   }
}
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static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
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{
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    sout_mux_sys_t      *p_sys = p_mux->p_sys;
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    ts_stream_t         *p_stream;

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    msg_Dbg( p_mux, "adding input" );
    p_input->p_sys = (void*)p_stream = malloc( sizeof( ts_stream_t ) );
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    p_stream->i_pid = AllocatePID( p_sys );
    if( p_sys->i_pcr_pid == 0x1fff )
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    {
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        p_sys->i_pcr_pid = p_stream->i_pid;
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    }
    p_stream->i_continuity_counter = 0;

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    switch( p_input->p_fmt->i_cat )
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    {
        case VIDEO_ES:
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            switch( p_input->p_fmt->i_fourcc )
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            {
                case VLC_FOURCC( 'm', 'p','g', 'v' ):
                    p_stream->i_stream_type = 0x02;
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                    p_stream->i_stream_id = p_sys->i_stream_id_mpgv;
                    p_sys->i_stream_id_mpgv++;
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                    break;
                case VLC_FOURCC( 'm', 'p','4', 'v' ):
                    p_stream->i_stream_type = 0x10;
                    p_stream->i_stream_id = 0xfa;
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                    p_sys->i_mpeg4_streams++;
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                    p_stream->i_es_id = p_stream->i_pid;
                    p_stream->i_sl_predefined = 0x01;   // NULL SL header
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                    break;
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                /* XXX dirty dirty but somebody want that : using crapy MS-codec XXX */
                /* I didn't want to do that :P */
                case VLC_FOURCC( 'W', 'M', 'V', '2' ):
                case VLC_FOURCC( 'H', '2', '6', '3' ):
                case VLC_FOURCC( 'I', '2', '6', '3' ):
                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' ):
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                case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
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                    p_stream->i_stream_type = 0xa0; // private
                    p_stream->i_stream_id = 0xa0;   // beurk
                    break;
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                default:
                    return( -1 );
            }
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            p_sys->i_video_bound++;
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            p_stream->i_bih_codec  = p_input->p_fmt->i_fourcc;
            p_stream->i_bih_width  = p_input->p_fmt->i_width;
            p_stream->i_bih_height = p_input->p_fmt->i_height;

            p_stream->i_decoder_specific_info_len = p_input->p_fmt->i_extra_data;
            if( p_stream->i_decoder_specific_info_len > 0 )
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            {
                p_stream->p_decoder_specific_info =
                    malloc( p_stream->i_decoder_specific_info_len );
                memcpy( p_stream->p_decoder_specific_info,
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                        p_input->p_fmt->p_extra_data,
                        p_input->p_fmt->i_extra_data );
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            }
            else
            {
                p_stream->p_decoder_specific_info = NULL;
            }
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            break;
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        case AUDIO_ES:
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            switch( p_input->p_fmt->i_fourcc )
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            {
                case VLC_FOURCC( 'a', '5','2', ' ' ):
                case VLC_FOURCC( 'a', '5','2', 'b' ):
                    p_stream->i_stream_type = 0x81;
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                    p_stream->i_stream_id = p_sys->i_stream_id_a52;
                    p_sys->i_stream_id_a52++;
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                    break;
                case VLC_FOURCC( 'm', 'p','4', 'a' ):
                    p_stream->i_stream_type = 0x11;
                    p_stream->i_stream_id = 0xfa;
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                    p_sys->i_mpeg4_streams++;
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                    p_stream->i_es_id = p_stream->i_pid;
                    p_stream->i_sl_predefined = 0x01;   // NULL SL header
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                    break;
                case VLC_FOURCC( 'm', 'p','g', 'a' ):
                    p_stream->i_stream_type = 0x04;
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                    p_stream->i_stream_id = p_sys->i_stream_id_mpga;
                    p_sys->i_stream_id_mpga++;
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                    break;
                default:
                    return( -1 );
            }
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            p_sys->i_audio_bound++;
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            p_stream->i_decoder_specific_info_len = p_input->p_fmt->i_extra_data;
            if( p_stream->i_decoder_specific_info_len > 0 )
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            {
                p_stream->p_decoder_specific_info =
                    malloc( p_stream->i_decoder_specific_info_len );
                memcpy( p_stream->p_decoder_specific_info,
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                        p_input->p_fmt->p_extra_data,
                        p_input->p_fmt->i_extra_data );
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            }
            else
            {
                p_stream->p_decoder_specific_info = NULL;
            }
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            break;
        default:
            return( -1 );
    }

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    p_sys->i_ts_packet = 0; // force pat/pmt recreation
    p_sys->i_pat_version_number++; p_sys->i_pat_version_number %= 32;
    p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
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    return( 0 );
}

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static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
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{
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    sout_mux_sys_t  *p_sys = p_mux->p_sys;
    ts_stream_t     *p_stream;
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    msg_Dbg( p_mux, "removing input" );
    p_stream = (ts_stream_t*)p_input->p_sys;
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    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 )
    {
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        p_sys->i_mpeg4_streams--;
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    }
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    free( p_stream );

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    p_sys->i_ts_packet = 0; // force pat/pmt recreation
    p_sys->i_pat_version_number++; p_sys->i_pat_version_number %= 32;
    p_sys->i_pmt_version_number++; p_sys->i_pmt_version_number %= 32;
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    return( 0 );
}



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static int MuxGetStream( sout_mux_t *p_mux,
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                         int        *pi_stream,
                         mtime_t    *pi_dts )
{
    mtime_t i_dts;
    int     i_stream;
    int     i;

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    for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
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    {
        sout_fifo_t  *p_fifo;

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        p_fifo = p_mux->pp_inputs[i]->p_fifo;
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        if( p_fifo->i_depth > 1 )
        {
            sout_buffer_t *p_buf;

            p_buf = sout_FifoShow( p_fifo );
            if( i_stream < 0 || p_buf->i_dts < i_dts )
            {
                i_dts = p_buf->i_dts;
                i_stream = i;
            }
        }
        else
        {
            return( -1 ); // wait that all fifo have at least 2 packets
        }
    }

    if( pi_stream )
    {
        *pi_stream = i_stream;
    }
    if( pi_dts )
    {
        *pi_dts = i_dts;
    }

    return( i_stream );
}

static int PEStoTS( sout_instance_t *p_sout,
                    sout_buffer_t **pp_ts, sout_buffer_t *p_pes,
                    ts_stream_t *p_stream )
{
    int i_size;
    uint8_t       *p_data;
    int i_first;
    mtime_t       i_dts;
    int         b_new_pes;
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    *pp_ts = NULL;

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    /* get PES total size */
    i_size = p_pes->i_size;
    p_data = p_pes->p_buffer;

    if( p_pes->i_dts == 0 && p_pes->i_length > 0 )
    {
        i_dts = 1; // XXX <french> kludge immonde </french>
    }
    else
    {
        i_dts = p_pes->i_dts;
    }

    for( i_first = 1, b_new_pes = 1; p_pes != NULL; )
    {
        int           i_adaptation_field;
        int           i_payload;
        int           i_copy;
        bits_buffer_t bits;
        sout_buffer_t *p_ts;

        p_ts = sout_BufferNew( p_sout, 188 );

        p_ts->i_pts = 0;
        p_ts->i_dts = i_dts;


        i_payload = 184 - ( i_first && i_dts > 0 ? 8 : 0 );
        i_copy = __MIN( i_size, i_payload );

        i_adaptation_field = ( ( i_first && i_dts > 0 ) || 
                               i_size < i_payload ) ? 1 : 0;

        /* write headers */
        bits_initwrite( &bits, 188, p_ts->p_buffer );
        bits_write( &bits, 8, 0x47 ); /* sync byte */
        bits_write( &bits, 1, 0 ); /* transport_error_indicator */
        bits_write( &bits, 1, b_new_pes ? 1 : 0 ); /* payload_unit_start */
        b_new_pes = 0;
        bits_write( &bits, 1, 0 ); /* transport_priority */
        bits_write( &bits, 13, p_stream->i_pid );
        bits_write( &bits, 2, 0 ); /* transport_scrambling_control */
        bits_write( &bits, 2, ( i_adaptation_field ? 0x03 : 0x01 ) );

        bits_write( &bits, 4, /* continuity_counter */
                    p_stream->i_continuity_counter );
        p_stream->i_continuity_counter++;
        p_stream->i_continuity_counter %= 16;
        if( i_adaptation_field )
        {
            int i;
            int i_stuffing;

            if( i_first && i_dts > 0 )
            {
                i_stuffing = i_payload - i_copy;
                bits_write( &bits, 8, 7 + i_stuffing );
                bits_write( &bits,  8, 0x10 ); /* various flags */
                bits_write( &bits, 33, i_dts * 9 / 100);
                bits_write( &bits,  6, 0 );
                bits_write( &bits,  9, 0 );
                i_dts = 0; /* XXX set dts only for first ts packet */
            }
            else
            {
                i_stuffing = i_payload - i_copy;
                bits_write( &bits, 8, i_stuffing - 1);
                if( i_stuffing - 1 > 0 )
                {
                    bits_write( &bits, 8, 0 );
                }
                i_stuffing -= 2;
            }

            /* put stuffing */
            for( i = 0; i < i_stuffing; i++ )
            {
                bits_write( &bits, 8, 0xff );
            }
        }
        /* copy payload */
        memcpy( p_ts->p_buffer + bits.i_data,
                p_data,
                i_copy );
        p_data += i_copy;
        i_size -= i_copy;

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        sout_BufferChain( pp_ts, p_ts );

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        i_first = 0;

        if( i_size <= 0 )
        {
            sout_buffer_t *p_next;

            p_next = p_pes->p_next;
            p_pes->p_next = NULL;
            sout_BufferDelete( p_sout, p_pes );
            p_pes = p_next;
            b_new_pes = 1;
            if( p_pes )
            {
                i_size = p_pes->i_size;
                p_data = p_pes->p_buffer;
            }
            else
            {
                break;
            }
        }
    }

    return 0;
}

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static void SetTSDate( sout_buffer_t *p_ts, mtime_t i_dts, mtime_t i_length )
{
    int i_count;
    sout_buffer_t *p_tmp;
    mtime_t i_delta;

    for( p_tmp = p_ts, i_count = 0; p_tmp != NULL; p_tmp = p_tmp->p_next )
    {
        i_count++;
    }
    i_delta = i_length / i_count;

    for( p_tmp = p_ts; p_tmp != NULL; p_tmp = p_tmp->p_next )
    {
        p_tmp->i_dts    = i_dts;
        p_tmp->i_length = i_delta;

        i_dts += i_delta;
    }
}

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static int Mux( sout_mux_t *p_mux )
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{
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    sout_mux_sys_t          *p_sys = p_mux->p_sys;
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    int     i_stream;

    sout_buffer_t *p_pat, *p_pmt, *p_ts;

    for( ;; )
    {
        mtime_t i_dts, i_length;

        sout_input_t *p_input;
        ts_stream_t *p_stream;
        sout_fifo_t  *p_fifo;
        sout_buffer_t *p_data;

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        if( MuxGetStream( p_mux, &i_stream, &i_dts ) < 0 )
577
578
579
580
        {
            return( 0 );
        }

581
        p_input = p_mux->pp_inputs[i_stream];
582
        p_fifo = p_input->p_fifo;
583
        p_stream = (ts_stream_t*)p_input->p_sys;
584
585
586
587
588

        p_data   = sout_FifoGet( p_fifo );
        i_dts    = p_data->i_dts;
        i_length = p_data->i_length;

589
590
        E_( EStoPES )( p_mux->p_sout, &p_data, p_data, p_stream->i_stream_id, 1);
        PEStoTS( p_mux->p_sout, &p_data, p_data, p_stream );
591

592
        if( p_sys->i_ts_packet % 30 == 0 )
593
594
        {
            /* create pat/pmt */
595
596
            GetPAT( p_mux, &p_pat );
            GetPMT( p_mux, &p_pmt );
597
598
599
600
601
602
603
604
605
606

            p_ts = p_pat;
            sout_BufferChain( &p_ts, p_pmt );
            sout_BufferChain( &p_ts, p_data );
        }
        else
        {
            p_ts = p_data;
        }

607
        p_sys->i_ts_packet++;
608
609
        SetTSDate( p_ts, i_dts, i_length );

610
        sout_AccessOutWrite( p_mux->p_access, p_ts );
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
    }

    return( 0 );
}


static uint32_t CalculateCRC( uint8_t *p_begin, int i_count )
{
    static uint32_t CRC32[256] =
    {
        0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9,
        0x130476dc, 0x17c56b6b, 0x1a864db2, 0x1e475005,
        0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
        0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd,
        0x4c11db70, 0x48d0c6c7, 0x4593e01e, 0x4152fda9,
        0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
        0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011,
        0x791d4014, 0x7ddc5da3, 0x709f7b7a, 0x745e66cd,
        0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
        0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5,
        0xbe2b5b58, 0xbaea46ef, 0xb7a96036, 0xb3687d81,
        0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
        0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49,
        0xc7361b4c, 0xc3f706fb, 0xceb42022, 0xca753d95,
        0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
        0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d,
        0x34867077, 0x30476dc0, 0x3d044b19, 0x39c556ae,
        0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
        0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16,
        0x018aeb13, 0x054bf6a4, 0x0808d07d, 0x0cc9cdca,
        0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
        0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02,
        0x5e9f46bf, 0x5a5e5b08, 0x571d7dd1, 0x53dc6066,
        0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
        0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e,
        0xbfa1b04b, 0xbb60adfc, 0xb6238b25, 0xb2e29692,
        0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
        0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a,
        0xe0b41de7, 0xe4750050, 0xe9362689, 0xedf73b3e,
        0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
        0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686,
        0xd5b88683, 0xd1799b34, 0xdc3abded, 0xd8fba05a,
        0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
        0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb,
        0x4f040d56, 0x4bc510e1, 0x46863638, 0x42472b8f,
        0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
        0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47,
        0x36194d42, 0x32d850f5, 0x3f9b762c, 0x3b5a6b9b,
        0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
        0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623,
        0xf12f560e, 0xf5ee4bb9, 0xf8ad6d60, 0xfc6c70d7,
        0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
        0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f,
        0xc423cd6a, 0xc0e2d0dd, 0xcda1f604, 0xc960ebb3,
        0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
        0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b,
        0x9b3660c6, 0x9ff77d71, 0x92b45ba8, 0x9675461f,
        0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
        0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640,
        0x4e8ee645, 0x4a4ffbf2, 0x470cdd2b, 0x43cdc09c,
        0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
        0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24,
        0x119b4be9, 0x155a565e, 0x18197087, 0x1cd86d30,
        0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
        0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088,
        0x2497d08d, 0x2056cd3a, 0x2d15ebe3, 0x29d4f654,
        0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
        0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c,
        0xe3a1cbc1, 0xe760d676, 0xea23f0af, 0xeee2ed18,
        0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
        0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0,
        0x9abc8bd5, 0x9e7d9662, 0x933eb0bb, 0x97ffad0c,
        0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
        0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
    };

    uint32_t i_crc = 0xffffffff;

    /* Calculate the CRC */
    while( i_count > 0 )
    {
        i_crc = (i_crc<<8) ^ CRC32[ (i_crc>>24) ^ ((uint32_t)*p_begin) ];
        p_begin++;
        i_count--;
    }

    return( i_crc );
}

#if defined MODULE_NAME_IS_mux_ts
701
static int GetPAT( sout_mux_t *p_mux,
702
703
                   sout_buffer_t **pp_ts )
{
704
    sout_mux_sys_t      *p_sys = p_mux->p_sys;
705
706
707
    sout_buffer_t       *p_pat;
    bits_buffer_t bits;

708
    p_pat = sout_BufferNew( p_mux->p_sout, 1024 );
709
710
711
712
713
714
715
716
717
718
719

    p_pat->i_pts = 0;
    p_pat->i_dts = 0;
    p_pat->i_length = 0;

    bits_initwrite( &bits, 1024, p_pat->p_buffer );

    bits_write( &bits, 8, 0 );      // pointer
    bits_write( &bits, 8, 0x00 );   // table id
    bits_write( &bits, 1,  1 );     // section_syntax_indicator
    bits_write( &bits, 1,  0 );     // 0
720
    bits_write( &bits, 2,  0x03 );     // reserved FIXME
721
722
    bits_write( &bits, 12, 13 );    // XXX for one program only XXX 
    bits_write( &bits, 16, 0x01 );  // FIXME stream id
723
    bits_write( &bits, 2,  0x03 );     //  FIXME
724
    bits_write( &bits, 5,  p_sys->i_pat_version_number );
725
726
727
728
729
    bits_write( &bits, 1,  1 );     // current_next_indicator
    bits_write( &bits, 8,  0 );     // section number
    bits_write( &bits, 8,  0 );     // last section number

    bits_write( &bits, 16, 1 );     // program number
730
    bits_write( &bits,  3, 0x07 );     // reserved
731
    bits_write( &bits, 13, p_sys->pmt.i_pid );  // program map pid
732

733
    bits_write( &bits, 32, CalculateCRC( bits.p_data + 1, bits.i_data - 1) );
734
735
736

    p_pat->i_size = bits.i_data;

737
    return( PEStoTS( p_mux->p_sout, pp_ts, p_pat, &p_sys->pat ) );
738
739
}

740
static int GetPMT( sout_mux_t *p_mux,
741
742
                   sout_buffer_t **pp_ts )
{
743
    sout_mux_sys_t      *p_sys = p_mux->p_sys;
744
745
746
747
    sout_buffer_t       *p_pmt;
    bits_buffer_t bits;
    int           i_stream;

748
    p_pmt = sout_BufferNew( p_mux->p_sout, 1024 );
749
750
751
752
753
754
755
756
757
758
759
760

    p_pmt->i_pts = 0;
    p_pmt->i_dts = 0;
    p_pmt->i_length = 0;

    bits_initwrite( &bits, 1024, p_pmt->p_buffer );

    bits_write( &bits, 8, 0 );      // pointer
    bits_write( &bits, 8, 0x02 );   // table id
    bits_write( &bits, 1,  1 );     // section_syntax_indicator
    bits_write( &bits, 1,  0 );     // 0
    bits_write( &bits, 2,  0 );     // reserved FIXME
761
    bits_write( &bits, 12, 13 + 5 * p_mux->i_nb_inputs );
762
763
    bits_write( &bits, 16, 1 );     // FIXME program number
    bits_write( &bits, 2,  0 );     //  FIXME
764
    bits_write( &bits, 5,  p_sys->i_pmt_version_number );
765
    bits_write( &bits, 1,  0 );     // current_next_indicator
766
767
768
769
770
    bits_write( &bits, 8,  0 );     // section number
    bits_write( &bits, 8,  0 );     // last section number

    bits_write( &bits,  3, 0 );     // reserved

771
    bits_write( &bits, 13, p_sys->i_pcr_pid );     //  FIXME FXIME PCR_PID FIXME
772
773
774
775
    bits_write( &bits,  4, 0 );     // reserved FIXME

    bits_write( &bits, 12, 0 );    // program info len FIXME

776
    for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
777
778
779
    {
        ts_stream_t *p_stream;

780
        p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
781
782
783
784
785
786
787
788

        bits_write( &bits,  8, p_stream->i_stream_type ); // stream_type
        bits_write( &bits,  3, 0 );                 // reserved
        bits_write( &bits, 13, p_stream->i_pid );   // es pid
        bits_write( &bits,  4, 0 );                 //reserved
        bits_write( &bits, 12, 0 );                 // es info len FIXME
    }

789
    bits_write( &bits, 32, CalculateCRC( bits.p_data + 1, bits.i_data - 1) );
790
791
792

    p_pmt->i_size = bits.i_data;

793
    return( PEStoTS( p_mux->p_sout, pp_ts, p_pmt, &p_sys->pmt ) );
794
795

}
796
#elif defined MODULE_NAME_IS_mux_ts_dvbpsi
797

798
799
static sout_buffer_t *WritePSISection( sout_instance_t *p_sout,
                                       dvbpsi_psi_section_t* p_section )
800
{
801
    sout_buffer_t   *p_psi, *p_first = NULL;
802
803


804
    while( p_section )
805
    {
806
        int             i_size;
807

808
        i_size =  (uint32_t)( p_section->p_payload_end - p_section->p_data )+
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
                  ( p_section->b_syntax_indicator ? 4 : 0 );

        p_psi = sout_BufferNew( p_sout, i_size + 1 );
        p_psi->i_pts = 0;
        p_psi->i_dts = 0;
        p_psi->i_length = 0;
        p_psi->i_size = i_size + 1;

        p_psi->p_buffer[0] = 0; // pointer
        memcpy( p_psi->p_buffer + 1,
                p_section->p_data,
                i_size );

        sout_BufferChain( &p_first, p_psi );

        p_section = p_section->p_next;
825
    }
826
827

    return( p_first );
828
829
}

830
static int GetPAT( sout_mux_t *p_mux,
831
                   sout_buffer_t **pp_ts )
832
{
833
    sout_mux_sys_t       *p_sys = p_mux->p_sys;
834
835
836
    sout_buffer_t        *p_pat;
    dvbpsi_pat_t         pat;
    dvbpsi_psi_section_t *p_section;
837

838
839
    dvbpsi_InitPAT( &pat,
                    0x01,    // i_ts_id
840
                    p_sys->i_pat_version_number,
841
842
843
844
                    0);      // b_current_next
    /* add all program (only one) */
    dvbpsi_PATAddProgram( &pat,
                          1,                    // i_number
845
                          p_sys->pmt.i_pid );   // i_pid
846

847
848
    p_section = dvbpsi_GenPATSections( &pat,
                                       0 );     // max program per section
849

850
    p_pat = WritePSISection( p_mux->p_sout, p_section );
851

852
    PEStoTS( p_mux->p_sout, pp_ts, p_pat, &p_sys->pat );
853

854
855
856
857
    dvbpsi_DeletePSISections( p_section );
    dvbpsi_EmptyPAT( &pat );
    return( 0 );
}
858

859
860
861
static uint32_t GetDescriptorLength24b( int i_length )
{
    uint32_t    i_l1, i_l2, i_l3;
862

863
864
865
    i_l1 = i_length&0x7f;
    i_l2 = ( i_length >> 7 )&0x7f;
    i_l3 = ( i_length >> 14 )&0x7f;
866

867
868
869
    return( 0x808000 | ( i_l3 << 16 ) | ( i_l2 << 8 ) | i_l1 );
}

870
static int GetPMT( sout_mux_t *p_mux,
871
872
                   sout_buffer_t **pp_ts )
{
873
874
    sout_mux_sys_t  *p_sys = p_mux->p_sys;
    sout_buffer_t   *p_pmt;
875
876

    dvbpsi_pmt_t        pmt;
877
    dvbpsi_pmt_es_t     *p_es;
878
879
880
881
882
883
    dvbpsi_psi_section_t *p_section;

    int                 i_stream;

    dvbpsi_InitPMT( &pmt,
                    0x01,   // program number
884
                    p_sys->i_pmt_version_number,
885
                    1,      // b_current_next
886
                    p_sys->i_pcr_pid );
887

888
    if( p_sys->i_mpeg4_streams > 0 )
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
    {
        uint8_t iod[4096];
        bits_buffer_t bits;
        bits_buffer_t bits_fix_IOD;

        bits_initwrite( &bits, 4096, iod );
        // 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 )
911
        for( i_stream = 0; i_stream < p_mux->i_nb_inputs; i_stream++ )
912
        {
913
            ts_stream_t *p_stream;
914
            p_stream = (ts_stream_t*)p_mux->pp_inputs[i_stream]->p_sys;
915

916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
            if( p_stream->i_stream_id == 0xfa || p_stream->i_stream_id == 0xfb )
            {
                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 == 0x11 )
                {
                    bits_write( &bits, 8, 0x40 );   // Audio 14496-3
                    bits_write( &bits, 6, 0x05 );   // AudioStream
                }
                else
                {
                    bits_write( &bits, 8, 0x00 );
                    bits_write( &bits, 6, 0x00 );

950
                    msg_Err( p_mux->p_sout,"Unsupported stream_type => broken IOD");
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
                }
                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_len > 0 )
                {
                    int i;
                    // DecoderSpecificInfo
                    bits_align( &bits );
                    bits_write( &bits, 8,   0x05 ); // tag
                    bits_write( &bits, 24,
                                GetDescriptorLength24b( p_stream->i_decoder_specific_info_len ) );
                    for( i = 0; i < p_stream->i_decoder_specific_info_len; 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
                switch( p_stream->i_sl_predefined )
                {
                    case 0x01:
                        // FIXME
                        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 );
                        break;
                    default:
991
                        msg_Err( p_mux,"Unsupported SL profile => broken IOD");
992
993
994
995
996
997
                        break;
                }
                /* fix ESDescr length */
                bits_write( &bits_fix_ESDescr, 24,
                            GetDescriptorLength24b( bits.i_data - bits_fix_ESDescr.i_data - 3 ) );
            }
998
        }
999
1000
        bits_align( &bits );
        /* fix IOD length */
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