projects
/
platform
/
upstream
/
libav.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
48960b8
)
Deobfuscate LE SHOW_[SU]BITS; these are simple sign/zero-extend
author
Måns Rullgård
<mans@mansr.com>
Sun, 21 Feb 2010 21:48:40 +0000
(21:48 +0000)
committer
Måns Rullgård
<mans@mansr.com>
Sun, 21 Feb 2010 21:48:40 +0000
(21:48 +0000)
Originally committed as revision 21948 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcodec/get_bits.h
patch
|
blob
|
history
diff --git
a/libavcodec/get_bits.h
b/libavcodec/get_bits.h
index
bb40ff4
..
7c4ee43
100644
(file)
--- a/
libavcodec/get_bits.h
+++ b/
libavcodec/get_bits.h
@@
-166,10
+166,10
@@
for examples see get_bits, show_bits, skip_bits, get_vlc
# ifdef ALT_BITSTREAM_READER_LE
# define SHOW_UBITS(name, gb, num)\
-
((name##_cache) & (NEG_USR32(0xffffffff,num))
)
+
zero_extend(name##_cache, num
)
# define SHOW_SBITS(name, gb, num)\
-
NEG_SSR32((name##_cache)<<(32-(num))
, num)
+
sign_extend(name##_cache
, num)
# else
# define SHOW_UBITS(name, gb, num)\
NEG_USR32(name##_cache, num)