godotengine/godot
1
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-11-07 12:30:27 +00:00
Code Releases Wiki Activity

Update Opus driver to 1.1.2

Browse Source 
And opusfile to 0.7.
This commit is contained in:
George Marques
2016-05-01 12:48:46 -03:00
parent a3d81cab8a
commit 7c59d819a7
270 changed files with 12814 additions and 5061 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
drivers/opus/celt/entcode.h
View File

@@ -34,6 +34,12 @@
# include <stddef.h>
# include "opus/celt/ecintrin.h"
extern const opus_uint32 SMALL_DIV_TABLE[129];
#ifdef OPUS_ARM_ASM
#define USE_SMALL_DIV_TABLE
#endif
/*OPT: ec_window must be at least 32 bits, but if you have fast arithmetic on a
larger type, you can speed up the decoder by using it here.*/
typedef opus_uint32 ec_window;
@@ -114,4 +120,33 @@ static OPUS_INLINE int ec_tell(ec_ctx *_this){
rounding error is in the positive direction).*/
opus_uint32 ec_tell_frac(ec_ctx *_this);
/* Tested exhaustively for all n and for 1<=d<=256 */
static OPUS_INLINE opus_uint32 celt_udiv(opus_uint32 n, opus_uint32 d) {
celt_assert(d>0);
#ifdef USE_SMALL_DIV_TABLE
if (d>256)
return n/d;
else {
opus_uint32 t, q;
t = EC_ILOG(d&-d);
q = (opus_uint64)SMALL_DIV_TABLE[d>>t]*(n>>(t-1))>>32;
return q+(n-q*d >= d);
}
#else
return n/d;
#endif
}
static OPUS_INLINE opus_int32 celt_sudiv(opus_int32 n, opus_int32 d) {
celt_assert(d>0);
#ifdef USE_SMALL_DIV_TABLE
if (n<0)
return -(opus_int32)celt_udiv(-n, d);
else
return celt_udiv(n, d);
#else
return n/d;
#endif
}
#endif