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Commit da7946c0 authored by Gildas Bazin's avatar Gildas Bazin
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* modules/mux/mpeg/ps.c,ps.c: the ps muxer can now create mpeg system (mpeg1)... 

*  modules/mux/mpeg/ps.c,ps.c: the ps muxer can now create mpeg system (mpeg1) files as well. Also modified the ps muxer to output streams with system headers.
parent 362d08e0
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Showing with 135 additions and 34 deletions
modules/mux/mpeg/pes.c
View file @ da7946c0
/*****************************************************************************
* pes.c
* pes.c: PES packetizer used by the MPEG multiplexers
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
* $Id: pes.c,v 1.7 2003/06/10 22:42:59 gbazin Exp $
* $Id: pes.c,v 1.8 2003/07/15 13:12:00 gbazin Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Eric Petit <titer@videolan.org>
......@@ -47,7 +47,8 @@
#define PES_PAYLOAD_SIZE_MAX 65500
static inline int PESHeader( uint8_t *p_hdr, mtime_t i_pts, mtime_t i_dts,
int i_es_size, int i_stream_id, int i_private_id )
int i_es_size, int i_stream_id, int i_private_id,
vlc_bool_t b_mpeg2 )
{
bits_buffer_t bits;
......@@ -73,7 +74,7 @@ static inline int PESHeader( uint8_t *p_hdr, mtime_t i_pts, mtime_t i_dts,
default:
/* arg, a little more difficult */
// if( b_mpeg2 ) // FIXME unsupported
if( b_mpeg2 )
{
int i_pts_dts;
int i_extra = 0;
......@@ -155,6 +156,59 @@ static inline int PESHeader( uint8_t *p_hdr, mtime_t i_pts, mtime_t i_dts,
bits_write( &bits, 1, 0x01 ); // marker
}
}
else /* MPEG1 */
{
int i_pts_dts;
if( i_pts >= 0 && i_dts >= 0 )
{
bits_write( &bits, 16, i_es_size + 10 /* + stuffing */ );
i_pts_dts = 0x03;
}
else if( i_pts >= 0 )
{
bits_write( &bits, 16, i_es_size + 5 /* + stuffing */ );
i_pts_dts = 0x02;
}
else
{
bits_write( &bits, 16, i_es_size + 1 /* + stuffing */);
i_pts_dts = 0x00;
}
/* FIXME: Now should be stuffing */
/* No STD_buffer_scale and STD_buffer_size */
/* write pts */
if( i_pts_dts & 0x02 )
{
bits_write( &bits, 4, i_pts_dts ); // '0010' or '0011'
bits_write( &bits, 3, i_pts >> 30 );
bits_write( &bits, 1, 0x01 ); // marker
bits_write( &bits, 15, i_pts >> 15 );
bits_write( &bits, 1, 0x01 ); // marker
bits_write( &bits, 15, i_pts );
bits_write( &bits, 1, 0x01 ); // marker
}
/* write i_dts */
if( i_pts_dts & 0x01 )
{
bits_write( &bits, 4, 0x01 ); // '0001'
bits_write( &bits, 3, i_dts >> 30 );
bits_write( &bits, 1, 0x01 ); // marker
bits_write( &bits, 15, i_dts >> 15 );
bits_write( &bits, 1, 0x01 ); // marker
bits_write( &bits, 15, i_dts );
bits_write( &bits, 1, 0x01 ); // marker
}
if( !i_pts_dts )
{
bits_write( &bits, 8, 0x0F );
}
}
/* now should be stuffing */
/* and then pes data */
......@@ -210,7 +264,7 @@ int E_( EStoPES )( sout_instance_t *p_sout,
{
i_pes_payload = __MIN( i_size, PES_PAYLOAD_SIZE_MAX );
i_pes_header = PESHeader( header, i_pts, i_dts, i_pes_payload,
i_stream_id, i_private_id );
i_stream_id, i_private_id, b_mpeg2 );
i_dts = -1; // only first PES has a dts/pts
i_pts = -1;
......
modules/mux/mpeg/ps.c
View file @ da7946c0
/*****************************************************************************
* ps.c
* ps.c: MPEG PS (ISO/IEC 13818-1) / MPEG SYSTEM (ISO/IEC 1172-1)
* multiplexer module for vlc
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
* $Id: ps.c,v 1.12 2003/04/13 20:00:21 fenrir Exp $
* $Id: ps.c,v 1.13 2003/07/15 13:12:00 gbazin Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Eric Petit <titer@videolan.org>
* Gildas Bazin <gbazin@netcourrier.com>
*
*
* This program is free software; you can redistribute it and/or modify
......@@ -77,6 +79,7 @@ vlc_module_begin();
set_description( _("PS muxer") );
set_capability( "sout mux", 50 );
add_shortcut( "ps" );
add_shortcut( "mpeg1" );
set_callbacks( Open, Close );
vlc_module_end();
......@@ -90,7 +93,6 @@ typedef struct ps_stream_s
struct sout_mux_sys_t
{
int i_stream_id_mpga;
int i_stream_id_mpgv;
int i_stream_id_a52;
......@@ -101,6 +103,8 @@ struct sout_mux_sys_t
int i_pes_count;
int i_system_header;
vlc_bool_t b_mpeg2;
};
/*****************************************************************************
......@@ -130,6 +134,8 @@ static int Open( vlc_object_t *p_this )
p_sys->i_system_header = 0;
p_sys->i_pes_count = 0;
p_sys->b_mpeg2 = !(p_mux->psz_mux && !strcmp( p_mux->psz_mux, "mpeg1" ));
return VLC_SUCCESS;
}
......@@ -154,7 +160,8 @@ static void Close( vlc_object_t * p_this )
free( p_sys );
}
static int Capability( sout_mux_t *p_mux, int i_query, void *p_args, void *p_answer )
static int Capability( sout_mux_t *p_mux, int i_query, void *p_args,
void *p_answer )
{
switch( i_query )
{
......@@ -177,7 +184,6 @@ static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
switch( p_input->p_fmt->i_cat )
{
case VIDEO_ES:
switch( p_input->p_fmt->i_fourcc )
{
case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
......@@ -189,12 +195,14 @@ static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
return( -1 );
}
break;
case AUDIO_ES:
switch( p_input->p_fmt->i_fourcc )
{
case VLC_FOURCC( 'a', '5', '2', ' ' ):
case VLC_FOURCC( 'a', '5', '2', 'b' ):
p_stream->i_stream_id = p_sys->i_stream_id_a52 | ( 0xbd << 8 );
p_stream->i_stream_id = p_sys->i_stream_id_a52 |
( 0xbd << 8 );
p_sys->i_stream_id_a52++;
p_sys->i_audio_bound++;
break;
......@@ -212,7 +220,9 @@ static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
}
p_stream->i_ok = 1;
msg_Dbg( p_mux, "adding input stream_id:0x%x [OK]", p_stream->i_stream_id );
msg_Dbg( p_mux, "adding input stream_id:0x%x [OK]",
p_stream->i_stream_id );
return( 0 );
}
......@@ -228,8 +238,7 @@ static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
return( VLC_SUCCESS );
}
static int MuxWritePackHeader( sout_mux_t *p_mux,
mtime_t i_dts )
static int MuxWritePackHeader( sout_mux_t *p_mux, mtime_t i_dts )
{
sout_buffer_t *p_hdr;
bits_buffer_t bits;
......@@ -240,7 +249,12 @@ static int MuxWritePackHeader( sout_mux_t *p_mux,
p_hdr = sout_BufferNew( p_mux->p_sout, 18 );
bits_initwrite( &bits, 14, p_hdr->p_buffer );
bits_write( &bits, 32, 0x01ba );
bits_write( &bits, 2, 0x01 ); // FIXME ??
if( p_mux->p_sys->b_mpeg2 )
bits_write( &bits, 2, 0x01 );
else
bits_write( &bits, 4, 0x02 );
bits_write( &bits, 3, ( i_src >> 30 )&0x07 );
bits_write( &bits, 1, 1 );
bits_write( &bits, 15, ( i_src >> 15 )&0x7fff );
......@@ -248,15 +262,27 @@ static int MuxWritePackHeader( sout_mux_t *p_mux,
bits_write( &bits, 15, i_src&0x7fff );
bits_write( &bits, 1, 1 );
if( p_mux->p_sys->b_mpeg2 )
{
bits_write( &bits, 9, 0 ); // src extention
}
bits_write( &bits, 1, 1 );
bits_write( &bits, 22, 0/8/50); // FIXME
bits_write( &bits, 22, 1000/8/50); // FIXME mux rate
bits_write( &bits, 1, 1 );
if( p_mux->p_sys->b_mpeg2 )
{
bits_write( &bits, 1, 1 );
bits_write( &bits, 5, 0x1f ); // FIXME reserved
bits_write( &bits, 3, 0 ); // stuffing bytes
}
if( p_mux->p_sys->b_mpeg2 )
p_hdr->i_size = 14;
else
p_hdr->i_size = 12;
sout_AccessOutWrite( p_mux->p_access, p_hdr );
return( 0 );
......@@ -267,12 +293,13 @@ static int MuxWriteSystemHeader( sout_mux_t *p_mux )
sout_mux_sys_t *p_sys = p_mux->p_sys;
sout_buffer_t *p_hdr;
bits_buffer_t bits;
int i;
p_hdr = sout_BufferNew( p_mux->p_sout, 12 );
p_hdr = sout_BufferNew( p_mux->p_sout, 12 + p_mux->i_nb_inputs * 3 );
bits_initwrite( &bits, 12, p_hdr->p_buffer );
bits_initwrite( &bits, 12 + p_mux->i_nb_inputs * 3, p_hdr->p_buffer );
bits_write( &bits, 32, 0x01bb );
bits_write( &bits, 16, 12 - 6);
bits_write( &bits, 16, 12 - 6 + p_mux->i_nb_inputs * 3 );
bits_write( &bits, 1, 1 );
bits_write( &bits, 22, 0 ); // FIXME rate bound
bits_write( &bits, 1, 1 );
......@@ -286,10 +313,31 @@ static int MuxWriteSystemHeader( sout_mux_t *p_mux )
bits_write( &bits, 1, 1 ); // marker bit
bits_write( &bits, 5, p_sys->i_video_bound );
bits_write( &bits, 1, 0 ); // packet rate restriction flag
bits_write( &bits, 7, 0x7f ); // reserved bits
bits_write( &bits, 1, 1 ); // packet rate restriction flag (1 for mpeg1)
bits_write( &bits, 7, 0xff ); // reserved bits
/* FIXME missing stream_id ... */
/* stream_id table */
for( i = 0; i < p_mux->i_nb_inputs; i++ )
{
ps_stream_t *p_stream = (ps_stream_t *)p_mux->pp_inputs[i]->p_sys;
if( p_stream->i_stream_id < 0xc0 )
{
/* FIXME */
}
bits_write( &bits, 8, p_stream->i_stream_id ); // stream ID
bits_write( &bits, 2, 0x03 );
if( p_stream->i_stream_id < 0xe0 ) /* FIXME */
{
/* audio */
bits_write( &bits, 1, 0 );
bits_write( &bits, 13, /* stream->max_buffer_size */ 0 / 128 );
} else {
/* video */
bits_write( &bits, 1, 1 );
bits_write( &bits, 13, /* stream->max_buffer_size */ 0 / 1024 );
}
}
sout_AccessOutWrite( p_mux->p_access, p_hdr );
......@@ -340,8 +388,7 @@ static int MuxGetStream( sout_mux_t *p_mux,
return( i_stream );
}
static int Mux ( sout_mux_t *p_mux )
static int Mux( sout_mux_t *p_mux )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
mtime_t i_dts;
......@@ -370,11 +417,12 @@ static int Mux ( sout_mux_t *p_mux )
if( p_sys->i_pes_count % 300 == 0 )
{
// MuxWriteSystemHeader( p_sout );
MuxWriteSystemHeader( p_mux );
}
p_data = sout_FifoGet( p_fifo );
E_( EStoPES )( p_mux->p_sout, &p_data, p_data, p_stream->i_stream_id, 1);
E_( EStoPES )( p_mux->p_sout, &p_data, p_data, p_stream->i_stream_id,
p_mux->p_sys->b_mpeg2 );
sout_AccessOutWrite( p_mux->p_access, p_data );
p_sys->i_pes_count++;
......@@ -382,4 +430,3 @@ static int Mux ( sout_mux_t *p_mux )
}
return( 0 );
}
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