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Fully remove floating point code from libmusepack. Introduce two small const arrays for precalculated scalefactors, correct the integer type of scalefactors to unsigned, migrate some metadata calculations to fixed point. No impact to decoder output.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30497 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andree Buschmann 2011-09-10 20:35:04 +00:00
parent d4249affc4
commit f163b405c0
6 changed files with 75 additions and 15 deletions
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2
apps/codecs/libmusepack/internal.h
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@ -99,7 +99,7 @@ static mpc_inline mpc_status mpc_check_key(char * key)
/// helper functions used by multiple files
mpc_uint32_t mpc_random_int(mpc_decoder *d); // in synth_filter.c
void mpc_decoder_init_quant(mpc_decoder *d, double scale_factor);
void mpc_decoder_init_quant(mpc_decoder *d, MPC_SAMPLE_FORMAT factor); // in requant.c
void mpc_decoder_synthese_filter_float(mpc_decoder *d, MPC_SAMPLE_FORMAT* OutData, mpc_int_t channels);
unsigned long mpc_crc32(unsigned char *buf, int len);