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Linshizhi
ffmpeg.wasm-core
Commits
40662728
Commit
40662728
authored
Jul 17, 2015
by
Alexandra Hájková
Committed by
Anton Khirnov
Jul 19, 2015
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asfdec: do not read replicated data when their length is 0
Signed-off-by:
Anton Khirnov
<
anton@khirnov.net
>
parent
c9f8cfb6
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1 changed file
with
13 additions
and
11 deletions
+13
-11
asfdec.c
libavformat/asfdec.c
+13
-11
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libavformat/asfdec.c
View file @
40662728
...
@@ -1123,6 +1123,7 @@ static int asf_read_multiple_payload(AVFormatContext *s, AVPacket *pkt,
...
@@ -1123,6 +1123,7 @@ static int asf_read_multiple_payload(AVFormatContext *s, AVPacket *pkt,
if
((
ret
=
asf_read_subpayload
(
s
,
pkt
,
1
))
<
0
)
if
((
ret
=
asf_read_subpayload
(
s
,
pkt
,
1
))
<
0
)
return
ret
;
return
ret
;
}
else
{
}
else
{
if
(
asf
->
rep_data_len
)
{
if
(
!
asf_pkt
->
data_size
)
{
if
(
!
asf_pkt
->
data_size
)
{
asf_pkt
->
data_size
=
asf_pkt
->
size_left
=
avio_rl32
(
pb
);
// read media object size
asf_pkt
->
data_size
=
asf_pkt
->
size_left
=
avio_rl32
(
pb
);
// read media object size
if
(
asf_pkt
->
data_size
<=
0
)
if
(
asf_pkt
->
data_size
<=
0
)
...
@@ -1132,8 +1133,9 @@ static int asf_read_multiple_payload(AVFormatContext *s, AVPacket *pkt,
...
@@ -1132,8 +1133,9 @@ static int asf_read_multiple_payload(AVFormatContext *s, AVPacket *pkt,
}
else
}
else
avio_skip
(
pb
,
4
);
// reading of media object size is already done
avio_skip
(
pb
,
4
);
// reading of media object size is already done
asf_pkt
->
dts
=
avio_rl32
(
pb
);
// read presentation time
asf_pkt
->
dts
=
avio_rl32
(
pb
);
// read presentation time
if
((
asf
->
rep_data_len
-
8
)
>
0
)
if
(
asf
->
rep_data_len
&&
((
asf
->
rep_data_len
-
8
)
>
0
)
)
avio_skip
(
pb
,
asf
->
rep_data_len
-
8
);
// skip replicated data
avio_skip
(
pb
,
asf
->
rep_data_len
-
8
);
// skip replicated data
}
pay_len
=
avio_rl16
(
pb
);
// payload length should be WORD
pay_len
=
avio_rl16
(
pb
);
// payload length should be WORD
if
(
pay_len
>
asf
->
packet_size
)
{
if
(
pay_len
>
asf
->
packet_size
)
{
av_log
(
s
,
AV_LOG_ERROR
,
av_log
(
s
,
AV_LOG_ERROR
,
...
...
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