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Linshizhi
ffmpeg.wasm-core
Commits
16195aad
Commit
16195aad
authored
Nov 21, 2015
by
Paul B Mahol
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avformat/vpk: check samples_per_block size
Signed-off-by:
Paul B Mahol
<
onemda@gmail.com
>
parent
8b1bc2b0
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vpk.c
libavformat/vpk.c
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libavformat/vpk.c
View file @
16195aad
...
@@ -62,6 +62,8 @@ static int vpk_read_header(AVFormatContext *s)
...
@@ -62,6 +62,8 @@ static int vpk_read_header(AVFormatContext *s)
if
(
st
->
codec
->
channels
<=
0
)
if
(
st
->
codec
->
channels
<=
0
)
return
AVERROR_INVALIDDATA
;
return
AVERROR_INVALIDDATA
;
samples_per_block
=
((
st
->
codec
->
block_align
/
st
->
codec
->
channels
)
*
28
)
/
16
;
samples_per_block
=
((
st
->
codec
->
block_align
/
st
->
codec
->
channels
)
*
28
)
/
16
;
if
(
samples_per_block
<=
0
)
return
AVERROR_INVALIDDATA
;
vpk
->
block_count
=
(
st
->
duration
+
(
samples_per_block
-
1
))
/
samples_per_block
;
vpk
->
block_count
=
(
st
->
duration
+
(
samples_per_block
-
1
))
/
samples_per_block
;
vpk
->
last_block_size
=
(
st
->
duration
%
samples_per_block
)
*
16
*
st
->
codec
->
channels
/
28
;
vpk
->
last_block_size
=
(
st
->
duration
%
samples_per_block
)
*
16
*
st
->
codec
->
channels
/
28
;
avio_skip
(
s
->
pb
,
offset
-
avio_tell
(
s
->
pb
));
avio_skip
(
s
->
pb
,
offset
-
avio_tell
(
s
->
pb
));
...
...
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