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avcodec/dca: use LUT for LBR frequency ranges

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Values for unsupported frequencies > 48000 Hz are still included (parser
will make use of them).

Also convert sampling frequencies array to unsigned.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
foo86 2016-05-13 12:48:27 +03:00 • committed by James Almer
parent 801dbf0269
commit 64fe1eebdd
3 changed files with 12 additions and 12 deletions
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6
libavcodec/dcadata.c
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@ -8725,11 +8725,15 @@ const int32_t ff_dca_xll_band_coeff[20] = {
3259333, -5074941, 6928550, -8204883
};
const int32_t ff_dca_sampling_freqs[16] = {
const uint32_t ff_dca_sampling_freqs[16] = {
8000, 16000, 32000, 64000, 128000, 22050, 44100, 88200,
176400, 352800, 12000, 24000, 48000, 96000, 192000, 384000,
};
const uint8_t ff_dca_freq_ranges[16] = {
0, 1, 2, 3, 4, 1, 2, 3, 4, 4, 0, 1, 2, 3, 4, 4
};
const uint16_t ff_dca_avg_g3_freqs[3] = { 16000, 18000, 24000 };
const uint16_t ff_dca_fst_amp[44] = {