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somewhat working audio pipeline

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minjaesong
2023-11-17 19:58:15 +09:00
parent 95500053fb
commit eb5483ae37
5 changed files with 186 additions and 80 deletions
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12
src/net/torvald/terrarum/audio/AudioProcessBuf.kt
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@@ -15,17 +15,23 @@ class AudioProcessBuf(val size: Int) {
var fbuf0 = FloatArray(size / 2); private set
var fbuf1 = FloatArray(size / 2); private set
fun shift(): ByteArray {
private fun shift(): ByteArray {
buf0 = buf1
buf1 = ByteArray(size)
return buf1
}
private fun updateFloats() {
fbuf0 = fbuf1
fbuf1 = FloatArray(size / 2) {
val i16 = (buf1[4*it].toUint() or buf1[4*it+1].toUint().shl(8)).toShort()
val i16 = (buf1[2*it].toUint() or buf1[2*it+1].toUint().shl(8)).toShort()
i16 / 32767f
}
}
return buf1
fun fetchBytes(action: (ByteArray) -> Unit) {
action(shift())
updateFloats()
}
fun getL0() = FloatArray(size / 4) { fbuf0[2*it] }