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Linshizhi
ffmpeg.wasm-core
Commits
14af74e9
Commit
14af74e9
authored
Apr 02, 2012
by
Anton Mitrofanov
Committed by
Diego Biurrun
Apr 04, 2012
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Plain Diff
h264: fix 4:2:2 PCM-macroblocks decoding
Fixes bug 239. Signed-off-by:
Ronald S. Bultje
<
rsbultje@gmail.com
>
parent
91dffb4c
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Showing
1 changed file
with
10 additions
and
5 deletions
+10
-5
h264.c
libavcodec/h264.c
+10
-5
No files found.
libavcodec/h264.c
View file @
14af74e9
...
...
@@ -2138,10 +2138,12 @@ static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple,
if
(
!
simple
&&
IS_INTRA_PCM
(
mb_type
))
{
if
(
pixel_shift
)
{
static
const
uint16_t
mb_sizes
[
4
]
=
{
256
,
384
,
512
,
768
};
const
int
bit_depth
=
h
->
sps
.
bit_depth_luma
;
int
j
;
GetBitContext
gb
;
init_get_bits
(
&
gb
,
(
uint8_t
*
)
h
->
mb
,
384
*
bit_depth
);
init_get_bits
(
&
gb
,
(
uint8_t
*
)
h
->
mb
,
mb_sizes
[
h
->
sps
.
chroma_format_idc
]
*
bit_depth
);
for
(
i
=
0
;
i
<
16
;
i
++
)
{
uint16_t
*
tmp_y
=
(
uint16_t
*
)(
dest_y
+
i
*
linesize
);
...
...
@@ -2175,7 +2177,7 @@ static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple,
}
}
else
{
for
(
i
=
0
;
i
<
16
;
i
++
)
memcpy
(
dest_y
+
i
*
linesize
,
h
->
mb
+
i
*
8
,
16
);
memcpy
(
dest_y
+
i
*
linesize
,
(
uint8_t
*
)
h
->
mb
+
i
*
16
,
16
);
if
(
simple
||
!
CONFIG_GRAY
||
!
(
s
->
flags
&
CODEC_FLAG_GRAY
))
{
if
(
!
h
->
sps
.
chroma_format_idc
)
{
for
(
i
=
0
;
i
<
block_h
;
i
++
)
{
...
...
@@ -2183,9 +2185,11 @@ static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple,
memset
(
dest_cr
+
i
*
uvlinesize
,
128
,
8
);
}
}
else
{
uint8_t
*
src_cb
=
(
uint8_t
*
)
h
->
mb
+
256
;
uint8_t
*
src_cr
=
(
uint8_t
*
)
h
->
mb
+
256
+
block_h
*
8
;
for
(
i
=
0
;
i
<
block_h
;
i
++
)
{
memcpy
(
dest_cb
+
i
*
uvlinesize
,
h
->
mb
+
128
+
i
*
4
,
8
);
memcpy
(
dest_cr
+
i
*
uvlinesize
,
h
->
mb
+
160
+
i
*
4
,
8
);
memcpy
(
dest_cb
+
i
*
uvlinesize
,
src_cb
+
i
*
8
,
8
);
memcpy
(
dest_cr
+
i
*
uvlinesize
,
src_cr
+
i
*
8
,
8
);
}
}
}
...
...
@@ -2374,7 +2378,8 @@ static av_always_inline void hl_decode_mb_444_internal(H264Context *h,
}
else
{
for
(
p
=
0
;
p
<
plane_count
;
p
++
)
for
(
i
=
0
;
i
<
16
;
i
++
)
memcpy
(
dest
[
p
]
+
i
*
linesize
,
h
->
mb
+
p
*
128
+
i
*
8
,
16
);
memcpy
(
dest
[
p
]
+
i
*
linesize
,
(
uint8_t
*
)
h
->
mb
+
p
*
256
+
i
*
16
,
16
);
}
}
else
{
if
(
IS_INTRA
(
mb_type
))
{
...
...
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