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Improvement: LTPF now work on decoded ring buffer

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Antoine SOULIER
2022-04-20 14:52:49 +02:00
parent 6f2b25df8a
commit c3831b7b24
8 changed files with 142 additions and 96 deletions
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9
src/ltpf.h
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@@ -96,12 +96,15 @@ void lc3_ltpf_get_data(lc3_bits_t *bits, lc3_ltpf_data_t *data);
* nbytes Size in bytes of the frame
* ltpf Context of synthesis
* data Bitstream data, NULL when pitch not present
* x [-d..-1] Previous, [0..ns-1] Current, filtered as output
* xr Base address of ring buffer of decoded samples
* x Samples to proceed in the ring buffer, filtered as output
*
* The number of previous samples `d` accessed on `x` is about 18 ms
* The size of the ring buffer is `nh + ns`.
* The filtering needs an history of at least 18 ms.
*/
void lc3_ltpf_synthesize(enum lc3_dt dt, enum lc3_srate sr, int nbytes,
lc3_ltpf_synthesis_t *ltpf, const lc3_ltpf_data_t *data, float *x);
lc3_ltpf_synthesis_t *ltpf, const lc3_ltpf_data_t *data,
const float *xr, float *x);
#endif /* __LC3_LTPF_H */