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Linshizhi
ffmpeg.wasm-core
Commits
74267333
Commit
74267333
authored
Feb 11, 2017
by
Paul B Mahol
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avformat/mpl2dec: skip BOM when probing
Fixes #5442. Signed-off-by:
Paul B Mahol
<
onemda@gmail.com
>
parent
a5c1c7a8
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mpl2dec.c
libavformat/mpl2dec.c
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libavformat/mpl2dec.c
View file @
74267333
...
...
@@ -23,6 +23,8 @@
* MPL2 subtitles format demuxer
*/
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#include "internal.h"
#include "subtitles.h"
...
...
@@ -39,6 +41,9 @@ static int mpl2_probe(AVProbeData *p)
const
unsigned
char
*
ptr
=
p
->
buf
;
const
unsigned
char
*
ptr_end
=
ptr
+
p
->
buf_size
;
if
(
AV_RB24
(
ptr
)
==
0xefbbbf
)
ptr
+=
3
;
for
(
i
=
0
;
i
<
2
;
i
++
)
{
if
(
sscanf
(
ptr
,
"[%"
SCNd64
"][%"
SCNd64
"]%c"
,
&
start
,
&
end
,
&
c
)
!=
3
&&
sscanf
(
ptr
,
"[%"
SCNd64
"][]%c"
,
&
start
,
&
c
)
!=
2
)
...
...
@@ -83,6 +88,9 @@ static int mpl2_read_header(AVFormatContext *s)
st
->
codecpar
->
codec_type
=
AVMEDIA_TYPE_SUBTITLE
;
st
->
codecpar
->
codec_id
=
AV_CODEC_ID_MPL2
;
if
(
avio_rb24
(
s
->
pb
)
!=
0xefbbbf
)
avio_seek
(
s
->
pb
,
-
3
,
SEEK_CUR
);
while
(
!
avio_feof
(
s
->
pb
))
{
char
line
[
4096
];
char
*
p
=
line
;
...
...
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