generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

vp56's arith decoder's code_word is only 16 bits, no need for unsigned long

Browse Source 
Originally committed as revision 24465 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2010-07-23 21:46:01 +00:00
parent 13a1304bb3
commit 24675b8093
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/vp56.h
View File

@ -56,7 +56,7 @@ typedef struct {
bits left) in order to eliminate a negate in cache refilling */
const uint8_t *buffer;
const uint8_t *end;
unsigned long code_word;
unsigned int code_word;
} VP56RangeCoder;
typedef struct {
@ -196,7 +196,7 @@ static inline int vp56_rac_get_prob(VP56RangeCoder *c, uint8_t prob)
/* Don't put c->high in a local variable; if we do that, gcc gets
* the stupids and turns the code below into a branch again. */
int bits = c->bits;
unsigned long code_word = c->code_word;
unsigned int code_word = c->code_word;
unsigned int low = 1 + (((c->high - 1) * prob) >> 8);
unsigned int low_shift = low << 8;
int bit = code_word >= low_shift;