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authorMåns Rullgård <mans@mansr.com>2010-02-21 21:48:40 +0000
committerMåns Rullgård <mans@mansr.com>2010-02-21 21:48:40 +0000
commit7cd7d19e86f98a0806429a623bb0b010a24ce93a (patch)
tree982c80601e958e175cd734f3e2a61bbe4865d145 /libavcodec/get_bits.h
parent48960b8f2496c03600e9d139521a1cf8f4a07e55 (diff)
downloadffmpeg-7cd7d19e86f98a0806429a623bb0b010a24ce93a.tar.gz
Deobfuscate LE SHOW_[SU]BITS; these are simple sign/zero-extend
Originally committed as revision 21948 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/get_bits.h')
-rw-r--r--libavcodec/get_bits.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/get_bits.h b/libavcodec/get_bits.h
index bb40ff4f38..7c4ee4386c 100644
--- 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)