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| author | Michael Niedermayer <michaelni@gmx.at> | 2010-01-24 19:19:09 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2010-01-24 19:19:09 +0000 |
| commit | d9ef0d2e143341be0a543e328ccc247ad2905888 (patch) | |
| tree | eabd09ff680babb3b8bd3978ff13e529151b40b6 /libavcodec/get_bits.h | |
| parent | 449d1442a62dda3815cb322d67be740db8f20c1b (diff) | |
Mark index as unsigend so gcc knows it doesnt need a sign extension on x86_64.
Any tips on how i can convince gcc that it doesnt need a
mov %eax, %eax
in every get_bits() ?
Originally committed as revision 21433 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/get_bits.h')
| -rw-r--r-- | libavcodec/get_bits.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/libavcodec/get_bits.h b/libavcodec/get_bits.h index d9ef8607f2..a660f2f136 100644 --- a/libavcodec/get_bits.h +++ b/libavcodec/get_bits.h @@ -152,7 +152,7 @@ for examples see get_bits, show_bits, skip_bits, get_vlc # define MIN_CACHE_BITS 25 # define OPEN_READER(name, gb)\ - int name##_index= (gb)->index;\ + unsigned int name##_index= (gb)->index;\ int name##_cache= 0;\ # define CLOSE_READER(name, gb)\ @@ -413,7 +413,7 @@ static inline void skip_bits(GetBitContext *s, int n){ static inline unsigned int get_bits1(GetBitContext *s){ #ifdef ALT_BITSTREAM_READER - int index= s->index; + unsigned int index= s->index; uint8_t result= s->buffer[ index>>3 ]; #ifdef ALT_BITSTREAM_READER_LE result>>= (index&0x07); @@ -557,7 +557,8 @@ void free_vlc(VLC *vlc); */ #define GET_VLC(code, name, gb, table, bits, max_depth)\ {\ - int n, index, nb_bits;\ + int n, nb_bits;\ + unsigned int index;\ \ index= SHOW_UBITS(name, gb, bits);\ code = table[index][0];\ @@ -588,7 +589,8 @@ void free_vlc(VLC *vlc); #define GET_RL_VLC(level, run, name, gb, table, bits, max_depth, need_update)\ {\ - int n, index, nb_bits;\ + int n, nb_bits;\ + unsigned int index;\ \ index= SHOW_UBITS(name, gb, bits);\ level = table[index].level;\ |