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codec: Fix ADPCM distortion caused by incorrect nibble order

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Closes #2049.

Signed-off-by: MerryMage <MerryMage@users.noreply.github.com>
This commit is contained in:
fincs 2016-09-03 14:01:31 +01:00 • committed by MerryMage
parent 09063dc5bb
commit 0bbda3bab4
1 changed files with 2 additions and 2 deletions
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4
src/audio_core/codec.cpp
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@ -58,11 +58,11 @@ StereoBuffer16 DecodeADPCM(const u8* const data, const size_t sample_count, cons
size_t outputi = framei * SAMPLES_PER_FRAME;
size_t datai = framei * FRAME_LEN + 1;
for (size_t i = 0; i < SAMPLES_PER_FRAME && outputi < sample_count; i += 2) {
const s16 sample1 = decode_sample(SIGNED_NIBBLES[data[datai] & 0xF]);
const s16 sample1 = decode_sample(SIGNED_NIBBLES[data[datai] >> 4]);
ret[outputi].fill(sample1);
outputi++;
const s16 sample2 = decode_sample(SIGNED_NIBBLES[data[datai] >> 4]);
const s16 sample2 = decode_sample(SIGNED_NIBBLES[data[datai] & 0xF]);
ret[outputi].fill(sample2);
outputi++;