diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2006-10-07 15:44:14 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2006-10-07 15:44:14 +0000 |
| commit | 5659b509c74ccee0f4abfe197d4dd269cfe21afd (patch) | |
| tree | b0a7036eb640197da47ff26fdc3a2d5a3b4fe08c /libavcodec/cabac.h | |
| parent | d026b45e73996650ff28ee5a8541ef59d2c421b1 (diff) | |
refill cabac variables in 16bit steps, 3% faster get_cabac()
Originally committed as revision 6578 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/cabac.h')
| -rw-r--r-- | libavcodec/cabac.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/libavcodec/cabac.h b/libavcodec/cabac.h index 7498f644a0..4453c09af7 100644 --- a/libavcodec/cabac.h +++ b/libavcodec/cabac.h @@ -29,7 +29,7 @@ //#undef NDEBUG #include <assert.h> -#define CABAC_BITS 8 +#define CABAC_BITS 16 #define CABAC_MASK ((1<<CABAC_BITS)-1) typedef struct CABACContext{ @@ -302,7 +302,7 @@ static inline void renorm_cabac_decoder_once(CABACContext *c){ #if 0 //P3:683 asm( - "lea -0x20000(%0), %2 \n\t" + "lea -0x2000000(%0), %2 \n\t" "shr $31, %2 \n\t" //FIXME 31->63 for x86-64 "shl %%cl, %0 \n\t" "shl %%cl, %1 \n\t" @@ -311,7 +311,7 @@ static inline void renorm_cabac_decoder_once(CABACContext *c){ #elif 0 //P3:680 asm( - "cmp $0x20000, %0 \n\t" + "cmp $0x2000000, %0 \n\t" "setb %%cl \n\t" //FIXME 31->63 for x86-64 "shl %%cl, %0 \n\t" "shl %%cl, %1 \n\t" @@ -321,7 +321,7 @@ static inline void renorm_cabac_decoder_once(CABACContext *c){ int temp2; //P3:665 asm( - "lea -0x20000(%0), %%eax \n\t" + "lea -0x2000000(%0), %%eax \n\t" "cdq \n\t" "mov %0, %%eax \n\t" "and %%edx, %0 \n\t" @@ -334,7 +334,7 @@ static inline void renorm_cabac_decoder_once(CABACContext *c){ int temp2; //P3:673 asm( - "cmp $0x20000, %0 \n\t" + "cmp $0x2000000, %0 \n\t" "sbb %%edx, %%edx \n\t" "mov %0, %%eax \n\t" "and %%edx, %0 \n\t" @@ -347,7 +347,7 @@ static inline void renorm_cabac_decoder_once(CABACContext *c){ int temp2; //P3:677 asm( - "cmp $0x20000, %0 \n\t" + "cmp $0x2000000, %0 \n\t" "lea (%0, %0), %%eax \n\t" "lea (%1, %1), %%edx \n\t" "cmovb %%eax, %0 \n\t" |