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Fix frameType parsing

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frameTypeSymbol values start from 0 again
when voiceActivityDetected == true
This commit is contained in:
Sean DuBois 2022-09-08 00:41:09 -04:00
parent e005fba189
commit 85ca7b30c0
1 changed files with 8 additions and 7 deletions
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15
internal/silk/decoder.go
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@ -72,23 +72,24 @@ func (d *Decoder) determineFrameType(voiceActivityDetected bool) (signalType fra
// +------------+-------------+--------------------------+
//
// https://datatracker.ietf.org/doc/html/rfc6716#section-4.2.7.3
switch frameTypeSymbol {
case 0:
switch {
case !voiceActivityDetected && frameTypeSymbol == 0:
signalType = frameSignalTypeInactive
quantizationOffsetType = frameQuantizationOffsetTypeLow
case 1:
case !voiceActivityDetected:
signalType = frameSignalTypeInactive
quantizationOffsetType = frameQuantizationOffsetTypeHigh
case 2:
case frameTypeSymbol == 0:
signalType = frameSignalTypeUnvoiced
quantizationOffsetType = frameQuantizationOffsetTypeLow
case 3:
case frameTypeSymbol == 1:
signalType = frameSignalTypeUnvoiced
quantizationOffsetType = frameQuantizationOffsetTypeHigh
case 4:
case frameTypeSymbol == 2:
signalType = frameSignalTypeVoiced
quantizationOffsetType = frameQuantizationOffsetTypeLow
case 5:
case frameTypeSymbol == 3:
signalType = frameSignalTypeVoiced
quantizationOffsetType = frameQuantizationOffsetTypeHigh
}