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submodule
ffmpeg
Commits
7b39d853
Commit
7b39d853
authored
Apr 10, 2015
by
Carl Eugen Hoyos
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lavf/flac: Autodetect raw flac files.
parent
3553b815
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flacdec.c
libavformat/flacdec.c
+18
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libavformat/flacdec.c
View file @
7b39d853
...
@@ -176,8 +176,26 @@ fail:
...
@@ -176,8 +176,26 @@ fail:
return
ret
;
return
ret
;
}
}
static
int
raw_flac_probe
(
AVProbeData
*
p
)
{
if
((
p
->
buf
[
2
]
&
0xF0
)
==
0
)
// blocksize code invalid
return
0
;
if
((
p
->
buf
[
2
]
&
0x0F
)
==
0x0F
)
// sample rate code invalid
return
0
;
if
((
p
->
buf
[
3
]
&
0xF0
)
>=
FLAC_MAX_CHANNELS
+
FLAC_CHMODE_MID_SIDE
<<
4
)
// channel mode invalid
return
0
;
if
((
p
->
buf
[
3
]
&
0x06
)
==
0x06
)
// bits per sample code invalid
return
0
;
if
((
p
->
buf
[
3
]
&
0x01
)
==
0x01
)
// reserved bit set
return
0
;
return
AVPROBE_SCORE_EXTENSION
/
4
+
1
;
}
static
int
flac_probe
(
AVProbeData
*
p
)
static
int
flac_probe
(
AVProbeData
*
p
)
{
{
if
((
AV_RB16
(
p
->
buf
)
&
0xFFFE
)
==
0xFFF8
)
return
raw_flac_probe
(
p
);
if
(
p
->
buf_size
<
4
||
memcmp
(
p
->
buf
,
"fLaC"
,
4
))
if
(
p
->
buf_size
<
4
||
memcmp
(
p
->
buf
,
"fLaC"
,
4
))
return
0
;
return
0
;
return
AVPROBE_SCORE_EXTENSION
;
return
AVPROBE_SCORE_EXTENSION
;
...
...
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