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videolan
vlc
Commits
333bc187
Commit
333bc187
authored
Jul 18, 2009
by
Laurent Aimar
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Plain Diff
A bit more strict es demux probing in wav.
parent
5ade44d9
Changes
1
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Showing
1 changed file
with
29 additions
and
16 deletions
+29
-16
modules/demux/mpeg/es.c
modules/demux/mpeg/es.c
+29
-16
No files found.
modules/demux/mpeg/es.c
View file @
333bc187
...
...
@@ -581,7 +581,7 @@ static int AacInit( demux_t *p_demux )
* Wav header skipper
*****************************************************************************/
#define WAV_PROBE_SIZE (512*1024)
static
int
WavSkipHeader
(
demux_t
*
p_demux
,
int
*
pi_skip
)
static
int
WavSkipHeader
(
demux_t
*
p_demux
,
int
*
pi_skip
,
const
int
pi_format
[]
)
{
const
uint8_t
*
p_peek
;
int
i_peek
=
0
;
...
...
@@ -617,16 +617,24 @@ static int WavSkipHeader( demux_t *p_demux, int *pi_skip )
i_peek
+=
i_len
+
8
;
if
(
stream_Peek
(
p_demux
->
s
,
&
p_peek
,
i_peek
)
!=
i_peek
)
return
VLC_EGENERIC
;
int
i_format
=
GetWLE
(
p_peek
+
i_peek
-
i_len
-
8
/* wFormatTag */
);
if
(
i_format
!=
WAVE_FORMAT_PCM
&&
i_format
!=
WAVE_FORMAT_A52
&&
i_format
!=
WAVE_FORMAT_DTS
)
const
int
i_format
=
GetWLE
(
p_peek
+
i_peek
-
i_len
-
8
/* wFormatTag */
);
int
i_format_idx
;
for
(
i_format_idx
=
0
;
pi_format
[
i_format_idx
]
!=
WAVE_FORMAT_UNKNOWN
;
i_format_idx
++
)
{
if
(
i_format
==
pi_format
[
i_format_idx
]
)
break
;
}
if
(
pi_format
[
i_format_idx
]
==
WAVE_FORMAT_UNKNOWN
)
return
VLC_EGENERIC
;
if
(
i_format
==
WAVE_FORMAT_PCM
)
{
if
(
GetWLE
(
p_peek
+
i_peek
-
i_len
-
6
/* nChannels */
)
!=
2
)
return
VLC_EGENERIC
;
if
(
GetDWLE
(
p_peek
+
i_peek
-
i_len
-
4
/* nSamplesPerSec */
)
!=
44100
)
return
VLC_EGENERIC
;
}
/* Skip the wave header */
while
(
memcmp
(
p_peek
+
i_peek
-
8
,
"data"
,
4
)
)
...
...
@@ -645,7 +653,8 @@ static int WavSkipHeader( demux_t *p_demux, int *pi_skip )
static
int
GenericProbe
(
demux_t
*
p_demux
,
int64_t
*
pi_offset
,
const
char
*
ppsz_name
[],
int
(
*
pf_check
)(
const
uint8_t
*
),
int
i_check_size
)
int
(
*
pf_check
)(
const
uint8_t
*
),
int
i_check_size
,
const
int
pi_wav_format
[]
)
{
bool
b_forced_demux
;
...
...
@@ -661,7 +670,7 @@ static int GenericProbe( demux_t *p_demux, int64_t *pi_offset,
i_offset
=
stream_Tell
(
p_demux
->
s
);
if
(
WavSkipHeader
(
p_demux
,
&
i_skip
)
)
if
(
WavSkipHeader
(
p_demux
,
&
i_skip
,
pi_wav_format
)
)
{
if
(
!
b_forced_demux
)
return
VLC_EGENERIC
;
...
...
@@ -737,8 +746,9 @@ static int EA52CheckSyncProbe( const uint8_t *p_peek )
static
int
EA52Probe
(
demux_t
*
p_demux
,
int64_t
*
pi_offset
)
{
const
char
*
ppsz_name
[]
=
{
"eac3"
,
NULL
};
const
int
pi_wav
[]
=
{
WAVE_FORMAT_PCM
,
WAVE_FORMAT_A52
,
WAVE_FORMAT_UNKNOWN
};
return
GenericProbe
(
p_demux
,
pi_offset
,
ppsz_name
,
EA52CheckSyncProbe
,
VLC_A52_HEADER_SIZE
);
return
GenericProbe
(
p_demux
,
pi_offset
,
ppsz_name
,
EA52CheckSyncProbe
,
VLC_A52_HEADER_SIZE
,
pi_wav
);
}
static
int
A52CheckSyncProbe
(
const
uint8_t
*
p_peek
)
...
...
@@ -750,8 +760,9 @@ static int A52CheckSyncProbe( const uint8_t *p_peek )
static
int
A52Probe
(
demux_t
*
p_demux
,
int64_t
*
pi_offset
)
{
const
char
*
ppsz_name
[]
=
{
"a52"
,
"ac3"
,
NULL
};
const
int
pi_wav
[]
=
{
WAVE_FORMAT_PCM
,
WAVE_FORMAT_A52
,
WAVE_FORMAT_UNKNOWN
};
return
GenericProbe
(
p_demux
,
pi_offset
,
ppsz_name
,
A52CheckSyncProbe
,
VLC_A52_HEADER_SIZE
);
return
GenericProbe
(
p_demux
,
pi_offset
,
ppsz_name
,
A52CheckSyncProbe
,
VLC_A52_HEADER_SIZE
,
pi_wav
);
}
static
int
A52Init
(
demux_t
*
p_demux
)
...
...
@@ -811,8 +822,9 @@ static int DtsCheckSync( const uint8_t *p_peek )
static
int
DtsProbe
(
demux_t
*
p_demux
,
int64_t
*
pi_offset
)
{
const
char
*
ppsz_name
[]
=
{
"dts"
,
NULL
};
const
int
pi_wav
[]
=
{
WAVE_FORMAT_PCM
,
WAVE_FORMAT_DTS
,
WAVE_FORMAT_UNKNOWN
};
return
GenericProbe
(
p_demux
,
pi_offset
,
ppsz_name
,
DtsCheckSync
,
11
);
return
GenericProbe
(
p_demux
,
pi_offset
,
ppsz_name
,
DtsCheckSync
,
11
,
pi_wav
);
}
static
int
DtsInit
(
demux_t
*
p_demux
)
{
...
...
@@ -840,8 +852,9 @@ static int MlpCheckSync( const uint8_t *p_peek )
static
int
MlpProbe
(
demux_t
*
p_demux
,
int64_t
*
pi_offset
)
{
const
char
*
ppsz_name
[]
=
{
"mlp"
,
"thd"
,
NULL
};
const
int
pi_wav
[]
=
{
WAVE_FORMAT_PCM
,
WAVE_FORMAT_UNKNOWN
};
return
GenericProbe
(
p_demux
,
pi_offset
,
ppsz_name
,
MlpCheckSync
,
4
+
28
+
16
*
4
);
return
GenericProbe
(
p_demux
,
pi_offset
,
ppsz_name
,
MlpCheckSync
,
4
+
28
+
16
*
4
,
pi_wav
);
}
static
int
MlpInit
(
demux_t
*
p_demux
)
...
...
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