30 #ifndef AVCODEC_GOLOMB_H
31 #define AVCODEC_GOLOMB_H
37 #define INVALID_VLC 0x80000000
152 if(range==1)
return 0;
153 else if(range==2)
return get_bits1(gb)^1;
192 if(buf&1) buf= -(buf>>1);
218 if((buf & 0xAAAAAAAA) == 0)
221 for(log=31; (buf & 0x80000000) == 0; log--){
222 buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
228 return (
signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;
243 ret = (ret ^ buf) - buf;
279 return buf + limit - 1;
321 }
else if(i == limit - 1){
339 if (v&1)
return v>>1;
350 return (v>>1) ^ -(v&1);
376 static inline int get_ue(
GetBitContext *s,
const char *file,
const char *func,
385 print_bin(bits, len);
387 av_log(
NULL, AV_LOG_DEBUG,
"%5d %2d %3d ue @%5d in %s %s:%d\n", bits, len, i, pos, file, func, line);
392 static inline int get_se(
GetBitContext *s,
const char *file,
const char *func,
401 print_bin(bits, len);
403 av_log(
NULL, AV_LOG_DEBUG,
"%5d %2d %3d se @%5d in %s %s:%d\n", bits, len, i, pos, file, func, line);
408 static inline int get_te(
GetBitContext *s,
int r,
char *file,
const char *func,
int line){
415 print_bin(bits, len);
417 av_log(
NULL, AV_LOG_DEBUG,
"%5d %2d %3d te @%5d in %s %s:%d\n", bits, len, i, pos, file, func, line);
422 #define get_ue_golomb(a) get_ue(a, __FILE__, __PRETTY_FUNCTION__, __LINE__)
423 #define get_se_golomb(a) get_se(a, __FILE__, __PRETTY_FUNCTION__, __LINE__)
424 #define get_te_golomb(a, r) get_te(a, r, __FILE__, __PRETTY_FUNCTION__, __LINE__)
425 #define get_te0_golomb(a, r) get_te(a, r, __FILE__, __PRETTY_FUNCTION__, __LINE__)
490 put_bits(pb, e + k + 1, (1<<k) + (i&((1<<k)-1)));
492 put_bits(pb, limit + esc_len, i - limit + 1);