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submodule
ffmpeg
Commits
9b5a4a9c
Commit
9b5a4a9c
authored
Sep 10, 2015
by
Luca Barbato
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mmvideo: Make sure the rle does not write over the frame boundaries
Bug-Id: 887 CC: libav-stable@libav.org
parent
41ed749f
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+5
-1
mmvideo.c
libavcodec/mmvideo.c
+5
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libavcodec/mmvideo.c
View file @
9b5a4a9c
...
...
@@ -99,7 +99,8 @@ static int mm_decode_intra(MmContext * s, int half_horiz, int half_vert)
while
(
bytestream2_get_bytes_left
(
&
s
->
gb
)
>
0
)
{
int
run_length
,
color
;
if
(
y
>=
s
->
avctx
->
height
)
// writes one more line when half_vert is true
if
(
y
>=
s
->
avctx
->
height
+
!!
half_vert
)
return
0
;
color
=
bytestream2_get_byte
(
&
s
->
gb
);
...
...
@@ -113,6 +114,9 @@ static int mm_decode_intra(MmContext * s, int half_horiz, int half_vert)
if
(
half_horiz
)
run_length
*=
2
;
if
(
s
->
avctx
->
width
-
x
<
run_length
)
return
AVERROR_INVALIDDATA
;
if
(
color
)
{
memset
(
s
->
frame
->
data
[
0
]
+
y
*
s
->
frame
->
linesize
[
0
]
+
x
,
color
,
run_length
);
if
(
half_vert
)
...
...
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