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Commit 3d94c37e authored by Gildas Bazin's avatar Gildas Bazin
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* modules/mux/mpeg/ps.c: Write a PSM + support for mp4v/mp4a/h264.

parent 0afb33e4
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Showing with 168 additions and 4 deletions
modules/mux/mpeg/ps.c
View file @ 3d94c37e
......@@ -37,6 +37,8 @@
#include "bits.h"
#include "pes.h"
#include "iso_lang.h"
/*****************************************************************************
* Module descriptor
*****************************************************************************/
......@@ -81,6 +83,7 @@ static int MuxGetStream ( sout_mux_t *, int *, mtime_t * );
static void MuxWritePackHeader ( sout_mux_t *, block_t **, mtime_t );
static void MuxWriteSystemHeader( sout_mux_t *, block_t **, mtime_t );
static void MuxWritePSM ( sout_mux_t *, block_t **, mtime_t );
static void StreamIdInit ( vlc_bool_t *id, int i_range );
static int StreamIdGet ( vlc_bool_t *id, int i_id_min, int i_id_max );
......@@ -89,6 +92,10 @@ static void StreamIdRelease ( vlc_bool_t *id, int i_id_min, int i_id );
typedef struct ps_stream_s
{
int i_stream_id;
int i_stream_type;
/* Language is iso639-2T */
uint8_t lang[3];
} ps_stream_t;
......@@ -113,6 +120,9 @@ struct sout_mux_sys_t
int64_t i_instant_dts;
vlc_bool_t b_mpeg2;
int i_psm_version;
uint32_t crc32_table[256];
};
static const char *ppsz_sout_options[] = {
......@@ -150,6 +160,8 @@ static int Open( vlc_object_t *p_this )
p_sys->i_system_header = 0;
p_sys->i_pes_count = 0;
p_sys->i_psm_version = 0;
p_sys->i_instant_bitrate = 0;
p_sys->i_instant_size = 0;
p_sys->i_instant_dts = 0;
......@@ -159,6 +171,21 @@ static int Open( vlc_object_t *p_this )
var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
p_sys->i_dts_delay = (int64_t)val.i_int * 1000;
/* Initialise CRC32 table */
if( p_sys->b_mpeg2 )
{
uint32_t i, j, k;
for(i = 0; i < 256; i++)
{
k = 0;
for( j = (i << 24) | 0x800000; j != 0x80000000; j <<= 1 )
k = (k << 1) ^ (((k ^ j) & 0x80000000) ? 0x04c11db7 : 0);
p_sys->crc32_table[i] = k;
}
}
return VLC_SUCCESS;
}
......@@ -225,13 +252,31 @@ static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
(char*)&p_input->p_fmt->i_codec );
p_input->p_sys = p_stream = malloc( sizeof( ps_stream_t ) );
p_stream->i_stream_type = 0x81;
/* Init this new stream */
switch( p_input->p_fmt->i_codec )
{
case VLC_FOURCC( 'm', 'p', '1', 'v' ):
p_stream->i_stream_id =
StreamIdGet( p_sys->stream_id_mpgv, 0xe0, 0xef );
p_stream->i_stream_type = 0x01; /* ISO/IEC 11172 Video */
break;
case VLC_FOURCC( 'm', 'p', '2', 'v' ):
case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
p_stream->i_stream_id =
StreamIdGet( p_sys->stream_id_mpgv, 0xe0, 0xef );
p_stream->i_stream_type = 0x02; /* ISO/IEC 13818 Video */
break;
case VLC_FOURCC( 'm', 'p', '4', 'v' ):
p_stream->i_stream_id =
StreamIdGet( p_sys->stream_id_mpgv, 0xe0, 0xef );
p_stream->i_stream_type = 0x10;
break;
case VLC_FOURCC( 'h', '2', '6', '4' ):
p_stream->i_stream_id =
StreamIdGet( p_sys->stream_id_mpgv, 0xe0, 0xef );
p_stream->i_stream_type = 0x1b;
break;
case VLC_FOURCC( 'l', 'p', 'c', 'm' ):
p_stream->i_stream_id =
......@@ -248,6 +293,12 @@ static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
p_stream->i_stream_id =
StreamIdGet( p_sys->stream_id_mpga, 0xc0, 0xcf );
p_stream->i_stream_type = 0x03; /* ISO/IEC 11172 Audio */
break;
case VLC_FOURCC( 'm', 'p', '4', 'a' ):
p_stream->i_stream_id =
StreamIdGet( p_sys->stream_id_mpga, 0xc0, 0xcf );
p_stream->i_stream_type = 0x0f;
break;
case VLC_FOURCC( 's', 'p', 'u', ' ' ):
p_stream->i_stream_id =
......@@ -257,10 +308,7 @@ static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
goto error;
}
if( p_stream->i_stream_id < 0 )
{
goto error;
}
if( p_stream->i_stream_id < 0 ) goto error;
if( p_input->p_fmt->i_cat == AUDIO_ES )
{
......@@ -274,6 +322,37 @@ static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
/* Try to set a sensible default value for the instant bitrate */
p_sys->i_instant_bitrate += p_input->p_fmt->i_bitrate + 1000/* overhead */;
p_sys->i_psm_version++;
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] );
}
}
return VLC_SUCCESS;
error:
......@@ -330,6 +409,11 @@ static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
p_sys->i_video_bound--;
}
/* Try to set a sensible default value for the instant bitrate */
p_sys->i_instant_bitrate -= (p_input->p_fmt->i_bitrate + 1000);
p_sys->i_psm_version++;
free( p_stream );
return VLC_SUCCESS;
}
......@@ -399,6 +483,12 @@ static int Mux( sout_mux_t *p_mux )
}
}
/* Write regulary ProgramStreamMap */
if( p_sys->b_mpeg2 && p_sys->i_pes_count % 300 == 0 )
{
MuxWritePSM( p_mux, &p_ps, i_dts );
}
/* Get and mux a packet */
p_data = block_FifoGet( p_input->p_fifo );
E_( EStoPES )( p_mux->p_sout, &p_data, p_data,
......@@ -610,6 +700,80 @@ static void MuxWriteSystemHeader( sout_mux_t *p_mux, block_t **p_buf,
block_ChainAppend( p_buf, p_hdr );
}
static void MuxWritePSM( sout_mux_t *p_mux, block_t **p_buf, mtime_t i_dts )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
block_t *p_hdr;
bits_buffer_t bits;
int i, i_psm_size = 16, i_es_map_size = 0;
for( i = 0; i < p_mux->i_nb_inputs; i++ )
{
sout_input_t *p_input = p_mux->pp_inputs[i];
ps_stream_t *p_stream = p_input->p_sys;
i_es_map_size += 4;
if( p_stream->lang[0] != 0 ) i_es_map_size += 6;
}
i_psm_size += i_es_map_size;
p_hdr = block_New( p_mux, i_psm_size );
p_hdr->i_dts = p_hdr->i_pts = i_dts;
bits_initwrite( &bits, i_psm_size, p_hdr->p_buffer );
bits_write( &bits, 32, 0x01bc );
bits_write( &bits, 16, i_psm_size - 3 );
bits_write( &bits, 1, 1 ); /* current_next_indicator */
bits_write( &bits, 2, 0xF ); /* reserved */
bits_write( &bits, 5, p_sys->i_psm_version );
bits_write( &bits, 7, 0xFF ); /* reserved */
bits_write( &bits, 1, 1 ); /* marker */
bits_write( &bits, 16, 0 ); /* program_stream_info_length */
/* empty */
bits_write( &bits, 16, i_es_map_size ); /* elementary_stream_map_length */
for( i = 0; i < p_mux->i_nb_inputs; i++ )
{
sout_input_t *p_input = p_mux->pp_inputs[i];
ps_stream_t *p_stream = p_input->p_sys;
bits_write( &bits, 8, p_stream->i_stream_type ); /* stream_type */
bits_write( &bits, 8, p_stream->i_stream_id ); /* elementary_stream_id */
/* ISO639 language descriptor */
if( p_stream->lang[0] != 0 )
{
bits_write( &bits, 16, 6 ); /* elementary_stream_info_length */
bits_write( &bits, 8, 0x0a ); /* descriptor_tag */
bits_write( &bits, 8, 4 ); /* descriptor_length */
bits_write( &bits, 8, p_stream->lang[0] );
bits_write( &bits, 8, p_stream->lang[1] );
bits_write( &bits, 8, p_stream->lang[2] );
bits_write( &bits, 8, 0 ); /* audio type: 0x00 undefined */
}
else
{
bits_write( &bits, 16, 0 ); /* elementary_stream_info_length */
}
}
/* CRC32 */
{
uint32_t i_crc = 0xffffffff;
for( i = 0; i < p_hdr->i_buffer; i++ )
i_crc = (i_crc << 8) ^
p_sys->crc32_table[((i_crc >> 24) ^ p_hdr->p_buffer[i]) & 0xff];
bits_write( &bits, 32, i_crc );
}
block_ChainAppend( p_buf, p_hdr );
}
/*
* Find stream to be muxed.
*/
......
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