curioustorvald/Terrarum
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input audio resampling

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This commit is contained in:
minjaesong
2023-12-10 22:12:42 +09:00
parent 6926b18cef
commit 55789a3671
3 changed files with 126 additions and 62 deletions
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37
src/net/torvald/terrarum/audio/MixerTrackProcessor.kt
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@@ -27,8 +27,7 @@ class MixerTrackProcessor(val bufferSize: Int, val rate: Int, val track: Terraru
private val emptyBuf = FloatArray(bufferSize / 4)
internal val streamBuf = AudioProcessBuf(bufferSize)
internal val sideChainBufs = Array(track.sidechainInputs.size) { AudioProcessBuf(bufferSize) }
internal var streamBuf: AudioProcessBuf? = null
private var fout1 = listOf(emptyBuf, emptyBuf)
@@ -43,6 +42,16 @@ class MixerTrackProcessor(val bufferSize: Int, val rate: Int, val track: Terraru
private fun printdbg(msg: Any) {
if (true) App.printdbg("AudioAdapter ${track.name}", msg)
}
private fun allocateStreamBuf(track: TerrarumAudioMixerTrack) {
streamBuf = AudioProcessBuf(track.currentTrack!!.samplingRate, {
track.currentTrack?.gdxMusic?.forceInvoke<Int>("read", arrayOf(it))
}, {
track.stop()
this.streamBuf = null
})
}
override fun run() {
// while (running) { // uncomment to multithread
/*synchronized(pauseLock) { // uncomment to multithread
@@ -91,20 +100,8 @@ class MixerTrackProcessor(val bufferSize: Int, val rate: Int, val track: Terraru
// fetch deviceBufferSize amount of sample from the disk
if (track.trackType != TrackType.MASTER && track.trackType != TrackType.BUS && track.streamPlaying) {
streamBuf.fetchBytes {
try {
val bytesRead = track.currentTrack?.gdxMusic?.forceInvoke<Int>("read", arrayOf(it))
if (bytesRead == null || bytesRead <= 0) { // some class (namely Mp3) may return 0 instead of negative value
// printdbg("Finished reading audio stream")
track.stop()
}
}
catch (e: Throwable) {
e.printStackTrace()
it.fill(0)
}
}
if (streamBuf == null && track.currentTrack != null) allocateStreamBuf(track)
streamBuf!!.fetchBytes()
}
var samplesL1: FloatArray
@@ -129,15 +126,17 @@ class MixerTrackProcessor(val bufferSize: Int, val rate: Int, val track: Terraru
}
// source channel: skip processing if there's no active input
// else if (track.getSidechains().any { it != null && !it.isBus && !it.isMaster && !it.streamPlaying } && !track.streamPlaying) {
else if (!track.streamPlaying) {
else if (!track.streamPlaying || streamBuf == null) {
samplesL1 = emptyBuf
samplesR1 = emptyBuf
bufEmpty = true
}
else {
samplesL1 = streamBuf.getL1(track.volume)
samplesR1 = streamBuf.getR1(track.volume)
streamBuf!!.getLR(track.volume).let {
samplesL1 = it.first
samplesR1 = it.second
}
}
if (!bufEmpty) {