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Linshizhi
ffmpeg.wasm-core
Commits
3f38d4b8
Commit
3f38d4b8
authored
May 27, 2015
by
Vittorio Giovara
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vp9: Parse subsampling and report missing feature
parent
d68c0538
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2 changed files
with
25 additions
and
1 deletion
+25
-1
vp9.c
libavcodec/vp9.c
+23
-1
vp9.h
libavcodec/vp9.h
+2
-0
No files found.
libavcodec/vp9.c
View file @
3f38d4b8
...
@@ -219,7 +219,29 @@ static int decode_frame_header(AVCodecContext *avctx,
...
@@ -219,7 +219,29 @@ static int decode_frame_header(AVCodecContext *avctx,
return
AVERROR_INVALIDDATA
;
return
AVERROR_INVALIDDATA
;
}
}
s
->
fullrange
=
get_bits1
(
&
s
->
gb
);
s
->
fullrange
=
get_bits1
(
&
s
->
gb
);
// for profile 1, here follows the subsampling bits
// subsampling bits
if
(
s
->
profile
==
1
||
s
->
profile
==
3
)
{
s
->
sub_x
=
get_bits1
(
&
s
->
gb
);
s
->
sub_y
=
get_bits1
(
&
s
->
gb
);
if
(
s
->
sub_x
&&
s
->
sub_y
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"4:2:0 color not supported in profile 1 or 3
\n
"
);
return
AVERROR_INVALIDDATA
;
}
if
(
get_bits1
(
&
s
->
gb
))
{
// reserved bit
av_log
(
avctx
,
AV_LOG_ERROR
,
"Reserved bit should be zero
\n
"
);
return
AVERROR_INVALIDDATA
;
}
}
else
{
s
->
sub_x
=
s
->
sub_y
=
1
;
}
if
(
!
s
->
sub_x
||
!
s
->
sub_y
)
{
avpriv_report_missing_feature
(
avctx
,
"Subsampling %d:%d"
,
s
->
sub_x
,
s
->
sub_y
);
return
AVERROR_PATCHWELCOME
;
}
s
->
refreshrefmask
=
0xff
;
s
->
refreshrefmask
=
0xff
;
w
=
get_bits
(
&
s
->
gb
,
16
)
+
1
;
w
=
get_bits
(
&
s
->
gb
,
16
)
+
1
;
h
=
get_bits
(
&
s
->
gb
,
16
)
+
1
;
h
=
get_bits
(
&
s
->
gb
,
16
)
+
1
;
...
...
libavcodec/vp9.h
View file @
3f38d4b8
...
@@ -277,6 +277,8 @@ typedef struct VP9Context {
...
@@ -277,6 +277,8 @@ typedef struct VP9Context {
uint8_t
use_last_frame_mvs
;
uint8_t
use_last_frame_mvs
;
uint8_t
errorres
;
uint8_t
errorres
;
uint8_t
colorspace
;
uint8_t
colorspace
;
uint8_t
sub_x
;
uint8_t
sub_y
;
uint8_t
fullrange
;
uint8_t
fullrange
;
uint8_t
intraonly
;
uint8_t
intraonly
;
uint8_t
resetctx
;
uint8_t
resetctx
;
...
...
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