oysteikt/mpd
0
0
Fork 0
Code Issues Pull Requests Releases Activity

pcm_prng: renamed prng() to pcm_prng()

Browse Source
This commit is contained in:
Max Kellermann 2009-01-07 18:07:19 +01:00
parent 3fd1fa31ca
commit b7b5e3f9c3
3 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/pcm_dither.c
View File

@ -43,7 +43,7 @@ pcm_dither_sample_24_to_16(int32_t sample, struct pcm_dither_24 *dither)
/* round */
output = sample + round;
rnd = prng(dither->random);
rnd = pcm_prng(dither->random);
output += (rnd & mask) - (dither->random & mask);
dither->random = rnd;

3
src/pcm_prng.h
View File

@ -23,7 +23,8 @@
* A very simple linear congruential PRNG. It's good enough for PCM
* dithering.
*/
static unsigned long prng(unsigned long state)
static unsigned long
pcm_prng(unsigned long state)
{
return (state * 0x0019660dL + 0x3c6ef35fL) & 0xffffffffL;
}

2
src/pcm_volume.h
View File

@ -46,7 +46,7 @@ pcm_dither(void)
static unsigned long state;
uint32_t r;
r = state = prng(state);
r = state = pcm_prng(state);
return (r & 511) - ((r >> 9) & 511);
}