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* pcm_dither: renamed struct pcm_dither_24 to struct pcm_ditherMax Kellermann2009-03-021-2/+2
| | | | | | There is nothing 24 bit specific in the pcm_dither_24 struct. Since we want to reuse the struct for 32 bit dithering, let's drop the "_24" suffix from the struct name.
* pcm_prng: renamed prng() to pcm_prng()Max Kellermann2009-01-071-1/+1
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* pcm_utils: use the custom PRNG for volume ditheringMax Kellermann2009-01-031-5/+1
| | | | | Don't use libc's rand() function, because it is slow. Our own trivial linear congruential generator is good enough for dithering.
* pcm_dither: added generic 24 to 16 bit ditheringMax Kellermann2008-10-231-0/+82
Copied and adapted code from the mp3 decoder plugin. This library now replaces the old and low-quality function pcm_convert_24_to_16().