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Linshizhi
ffmpeg.wasm-core
Commits
d82f1885
Commit
d82f1885
authored
Oct 23, 2012
by
Mans Rullgard
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Remove need for padding in av_memcpy_backptr()
Signed-off-by:
Mans Rullgard
<
mans@mansr.com
>
parent
ceb754d0
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2 changed files
with
9 additions
and
9 deletions
+9
-9
lzo.c
libavutil/lzo.c
+8
-8
lzo.h
libavutil/lzo.h
+1
-1
No files found.
libavutil/lzo.c
View file @
d82f1885
...
...
@@ -132,13 +132,14 @@ static inline void memcpy_backptr(uint8_t *dst, int back, int cnt)
if
(
back
==
1
)
{
memset
(
dst
,
*
src
,
cnt
);
}
else
{
#ifdef OUTBUF_PADDED
AV_COPY16U
(
dst
,
src
);
AV_COPY16U
(
dst
+
2
,
src
+
2
);
src
+=
4
;
dst
+=
4
;
cnt
-=
4
;
if
(
cnt
>
0
)
{
if
(
cnt
>=
4
)
{
AV_COPY16U
(
dst
,
src
);
AV_COPY16U
(
dst
+
2
,
src
+
2
);
src
+=
4
;
dst
+=
4
;
cnt
-=
4
;
}
if
(
cnt
>=
8
)
{
AV_COPY16U
(
dst
,
src
);
AV_COPY16U
(
dst
+
2
,
src
+
2
);
AV_COPY16U
(
dst
+
4
,
src
+
4
);
...
...
@@ -147,7 +148,6 @@ static inline void memcpy_backptr(uint8_t *dst, int back, int cnt)
dst
+=
8
;
cnt
-=
8
;
}
#endif
if
(
cnt
>
0
)
{
int
blocklen
=
back
;
while
(
cnt
>
blocklen
)
{
...
...
libavutil/lzo.h
View file @
d82f1885
...
...
@@ -61,7 +61,7 @@ int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen);
/**
* @brief deliberately overlapping memcpy implementation
* @param dst destination buffer
; must be padded with 12 additional bytes
* @param dst destination buffer
* @param back how many bytes back we start (the initial size of the overlapping window)
* @param cnt number of bytes to copy, must be >= 0
*
...
...
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