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videolan
vlc-gpu
Commits
be3c7a5f
Commit
be3c7a5f
authored
Mar 31, 2008
by
Rafaël Carré
Committed by
Jean-Paul Saman
Mar 31, 2008
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Plain Diff
h264 packetizer : do not trust the input data in p_extra
parent
cf34ca7b
Changes
1
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Showing
1 changed file
with
20 additions
and
8 deletions
+20
-8
modules/packetizer/h264.c
modules/packetizer/h264.c
+20
-8
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modules/packetizer/h264.c
View file @
be3c7a5f
...
...
@@ -223,25 +223,37 @@ static int Open( vlc_object_t *p_this )
i_sps
=
(
*
p
++
)
&
0x1f
;
for
(
i
=
0
;
i
<
i_sps
;
i
++
)
{
int
i_length
=
GetWBE
(
p
);
block_t
*
p_sps
=
nal_get_annexeb
(
p_dec
,
p
+
2
,
i_length
);
uint16_t
i_length
=
GetWBE
(
p
);
p
+=
2
;
if
(
i_length
>
(
uint8_t
*
)
p_dec
->
fmt_in
.
p_extra
+
p_dec
->
fmt_in
.
i_extra
-
p
)
{
return
VLC_EGENERIC
;
}
block_t
*
p_sps
=
nal_get_annexeb
(
p_dec
,
p
,
i_length
);
if
(
!
p_sps
)
return
VLC_EGENERIC
;
p_sys
->
p_sps
=
block_Duplicate
(
p_sps
);
p_sps
->
i_pts
=
p_sps
->
i_dts
=
mdate
();
ParseNALBlock
(
p_dec
,
p_sps
);
p
+=
2
+
i_length
;
p
+=
i_length
;
}
/* Read PPS */
i_pps
=
*
p
++
;
for
(
i
=
0
;
i
<
i_pps
;
i
++
)
{
int
i_length
=
GetWBE
(
p
);
block_t
*
p_pps
=
nal_get_annexeb
(
p_dec
,
p
+
2
,
i_length
);
uint16_t
i_length
=
GetWBE
(
p
);
p
+=
2
;
if
(
i_length
>
(
uint8_t
*
)
p_dec
->
fmt_in
.
p_extra
+
p_dec
->
fmt_in
.
i_extra
-
p
)
{
return
VLC_EGENERIC
;
}
block_t
*
p_pps
=
nal_get_annexeb
(
p_dec
,
p
,
i_length
);
if
(
!
p_pps
)
return
VLC_EGENERIC
;
p_sys
->
p_pps
=
block_Duplicate
(
p_pps
);
p_pps
->
i_pts
=
p_pps
->
i_dts
=
mdate
();
ParseNALBlock
(
p_dec
,
p_pps
);
p
+=
2
+
i_length
;
p
+=
i_length
;
}
msg_Dbg
(
p_dec
,
"avcC length size=%d, sps=%d, pps=%d"
,
p_sys
->
i_avcC_length_size
,
i_sps
,
i_pps
);
...
...
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