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Commit d5a0120d authored by Jean-Baptiste Kempf's avatar Jean-Baptiste Kempf
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Cosmetic and initial support of sipr in rm demuxer. Doesn't work with all flavours yet.

parent d4515c0f
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Showing with 36 additions and 28 deletions
modules/demux/real.c
View file @ d5a0120d
......@@ -103,6 +103,9 @@ static int Control( demux_t *p_demux, int i_query, va_list args );
static int HeaderRead( demux_t *p_demux );
static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num );
// Map flavour to bytes per second
static int sipr_fl2bps[4] = {813, 1062, 625, 2000}; // 6.5, 8.5, 5, 16 kbit per second
/*****************************************************************************
* Open
*****************************************************************************/
......@@ -482,7 +485,7 @@ static int Demux( demux_t *p_demux )
(int64_t)p_sys->i_pcr );
}
if( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', '4', 'a' ) )
if( tk->fmt.i_codec == VLC_FOURCC( 'm','p','4','a' ) )
{
int i_sub = (p_sys->buffer[1] >> 4)&0x0f;
uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
......@@ -517,8 +520,7 @@ static int Demux( demux_t *p_demux )
if( i_flags & 2 ) y = tk->i_subpacket = 0;
if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c' ) ||
tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r' ) )
tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c' ))
for( i = 0; i < tk->i_frame_size / tk->i_subpacket_size; i++ )
{
block_t *p_block = block_New( p_demux, tk->i_subpacket_size );
......@@ -533,7 +535,8 @@ static int Demux( demux_t *p_demux )
tk->i_subpacket++;
}
if( tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8' ) )
if( tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8' ) ||
tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r' ) )
for( i = 0; i < tk->i_subpacket_h / 2; i++ )
{
block_t *p_block = block_New( p_demux, tk->i_coded_frame_size);
......@@ -1000,32 +1003,32 @@ static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
return VLC_EGENERIC;
}
p_peek += 2; /* 00 00 */
p_peek += 4; /* .ra4 or .ra5 */
p_peek += 4; /* data size */
p_peek += 2; /* version (4 or 5) */
i_header_size = GetDWBE( p_peek ); p_peek += 4; /* header size */
i_flavor = GetWBE( p_peek ); p_peek += 2; /* codec flavor */
p_peek += 2; /* 00 00 */
p_peek += 4; /* .ra4 or .ra5 */
p_peek += 4; /* data size */
p_peek += 2; /* version (4 or 5) */
i_header_size = GetDWBE( p_peek ); p_peek += 4; /* header size */
i_flavor = GetWBE( p_peek ); p_peek += 2; /* codec flavor */
i_coded_frame_size = GetDWBE( p_peek ); p_peek += 4; /* coded frame size*/
p_peek += 4; /* ?? */
p_peek += 4; /* ?? */
p_peek += 4; /* ?? */
i_subpacket_h = GetWBE( p_peek ); p_peek += 2; /* 1 */
i_frame_size = GetWBE( p_peek ); p_peek += 2; /* frame size */
i_subpacket_size = GetWBE( p_peek ); p_peek += 2; /* subpacket_size */
p_peek += 4; /* ?? */
p_peek += 4; /* ?? */
p_peek += 4; /* ?? */
i_subpacket_h = GetWBE( p_peek ); p_peek += 2; /* 1 */
i_frame_size = GetWBE( p_peek ); p_peek += 2; /* frame size */
i_subpacket_size = GetWBE( p_peek ); p_peek += 2; /* subpacket_size */
p_peek += 2; /* ?? */
if( i_version == 5 ) p_peek += 6; /* 0, srate, 0 */
if( i_version == 5 ) p_peek += 6; /* 0, srate, 0 */
fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2; /* Sample Rate */
fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2; /* Sample Rate */
p_peek += 2; /* ?? */
fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2; /* Sure?*/
fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2; /* Channels */
fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2; /* Sure?*/
fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2; /* Channels */
fmt.audio.i_blockalign = i_frame_size;
if( i_version == 5 )
{
p_peek += 4; /* genr */
p_peek += 4; /* genr */
memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
}
else
......@@ -1043,14 +1046,14 @@ static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
switch( fmt.i_codec )
{
case VLC_FOURCC( 'd', 'n', 'e', 't' ):
fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
case VLC_FOURCC( 'd','n','e','t' ):
fmt.i_codec = VLC_FOURCC( 'a','5','2',' ' );
break;
case VLC_FOURCC( 'r', 'a', 'a', 'c' ):
case VLC_FOURCC( 'r', 'a', 'c', 'p' ):
case VLC_FOURCC( 'r','a','a','c' ):
case VLC_FOURCC( 'r','a','c','p' ):
fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
//version 5 ?
// For version == 4, there might need an extra p_peek++
if( fmt.i_extra > 0 ) { fmt.i_extra--; p_peek++; }
if( fmt.i_extra > 0 )
{
......@@ -1058,12 +1061,11 @@ static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
memcpy( fmt.p_extra, p_peek, fmt.i_extra );
}
fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
break;
case VLC_FOURCC('c','o','o','k'):
case VLC_FOURCC('a','t','r','c'):
// case VLC_FOURCC('s','i','p','r'):
fmt.audio.i_blockalign = i_subpacket_size;
if( !(fmt.i_extra = GetDWBE( p_peek )) ) break;
fmt.p_extra = malloc( fmt.i_extra );
......@@ -1075,6 +1077,12 @@ static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
fmt.audio.i_blockalign = i_coded_frame_size;
break;
case VLC_FOURCC('s','i','p','r'):
fmt.i_extra = 0;
fmt.audio.i_blockalign = i_coded_frame_size;
fmt.audio.i_bitspersample = sipr_fl2bps[ i_flavor ];
break;
default:
msg_Dbg( p_demux, " - unknown audio codec=%4.4s",
(char*)&fmt.i_codec );
......
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