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| author | Vladimir Voroshilov <voroshil@gmail.com> | 2009-06-23 12:39:33 +0700 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-09-24 21:10:59 +0200 |
| commit | b29e5a6780737f8a11c47714bf1a697a98966a51 (patch) | |
| tree | b8b8852b11bd352ab6c1098e68294124d493ffbf /libavcodec/g729dec.c | |
| parent | cd3e2820d38790da71911669fe75a6e2f0e6fb03 (diff) | |
doxy comments for LSF array
Diffstat (limited to 'libavcodec/g729dec.c')
| -rw-r--r-- | libavcodec/g729dec.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavcodec/g729dec.c b/libavcodec/g729dec.c index 7305ebb4af..b8dba4282f 100644 --- a/libavcodec/g729dec.c +++ b/libavcodec/g729dec.c @@ -128,6 +128,15 @@ static inline int get_parity(uint8_t value) return (0x6996966996696996ULL >> (value >> 2)) & 1; } +/* + * Decodes LSF (Line Spectral Frequencies) from L0-L3 (3.2.4). + * @param lsfq [out] (2.13) quantized LSF coefficients + * @param past_quantizer_outputs [in/out] (2.13) quantizer outputs from previous frames + * @param ma_predictor switched MA predictor of LSP quantizer + * @param vq_1st first stage vector of quantizer + * @param vq_2nd_low second stage lower vector of LSP quantizer + * @param vq_2nd_high second stage higher vector of LSP quantizer + */ static void lsf_decode(int16_t* lsfq, int16_t* past_quantizer_outputs[MA_NP + 1], int16_t ma_predictor, int16_t vq_1st, int16_t vq_2nd_low, int16_t vq_2nd_high) |