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

Correct DSP_SET_SAMPLE_DEPTH to 29 for mpc (18.14 fixed point samples). Higher precision for fast 32x32=32 multiplication in dewindowing part of synthesis filter.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17708 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andree Buschmann 2008-06-10 06:11:50 +00:00
parent 50763d512c
commit f52696ef8a
3 changed files with 25 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

4
apps/codecs/mpc.c
View file

@ -76,7 +76,9 @@ enum codec_status codec_main(void)
mpc_streaminfo info;
int retval = CODEC_OK;
ci->configure(DSP_SET_SAMPLE_DEPTH, 28);
/* musepack's sample representation is 18.14
* DSP_SET_SAMPLE_DEPTH = 14 (FRACT) + 16 (NATIVE) - 1 (SIGN) = 29 */
ci->configure(DSP_SET_SAMPLE_DEPTH, 29);
/* Create a decoder instance */
reader.read = read_impl;