devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

* Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1).

Browse source 
* Redo the changes required to make Speex compile in Rockbox. Should be a bit easier to keep in sync with Speex SVN now.
* Fix name of Speex library in codecs Makefile.



git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12254 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dan Everton 2007-02-10 11:44:26 +00:00
parent 5158751263
commit 7bf62e8da6
70 changed files with 4847 additions and 3314 deletions
Download patch file Download diff file Expand all files Collapse all files

33
apps/codecs/libspeex/math_approx.h
View file

@ -35,37 +35,28 @@
#ifndef MATH_APPROX_H
#define MATH_APPROX_H
#include "misc.h"
#ifdef FIXED_POINT
spx_word16_t spx_cos(spx_word16_t x);
spx_int16_t spx_ilog2(spx_uint32_t x);
spx_int16_t spx_ilog4(spx_uint32_t x);
#ifdef FIXED_POINT
spx_word16_t spx_sqrt(spx_word32_t x);
float spx_sqrtf(float arg);
spx_word16_t spx_acos(spx_word16_t x);
float spx_floor(float x);
float spx_exp(float x);
extern const float exp_lookup_int[];
/** Returns: Math.exp((idx-10) / 8.0) Range:0-32*/
static inline float spx_exp_lookup(int xf){
return exp_lookup_int[xf];
}
//Placeholders:
float pow(float a,float b);
float log(float l);
float fabs(float l);
float sin(float l);
//float floor(float l);
spx_word32_t spx_exp(spx_word16_t x);
spx_word16_t spx_cos_norm(spx_word32_t x);
#define floor spx_floor
#define exp spx_exp
#define sqrt spx_sqrt
#define acos spx_acos
#define cos spx_cos
/* Input in Q15, output in Q14 */
spx_word16_t spx_atan(spx_word32_t x);
#else
#define spx_sqrt sqrt
#define spx_acos acos
#define spx_exp exp
#define spx_cos_norm(x) (cos((.5f*M_PI)*(x)))
#define spx_atan atan
#endif
#endif