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Cleanup AudioAnalyzer

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Ralty
2025-07-30 20:48:42 +07:00
parent 0615b7a9ec
commit 2724c8b236
2 changed files with 185 additions and 151 deletions
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source/openfl/media/SoundChannel.hx
+13 -25
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@@ -27,7 +27,7 @@ import lime.media.openal.AL;
@:fileXml('tags="haxe,release"')
@:noDebug
#end
#if (lime && lime_cffi)
#if lime_cffi
@:access(lime._internal.backend.native.NativeAudioSource)
@:access(lime.media.AudioSource)
#end
@@ -158,9 +158,9 @@ import lime.media.openal.AL;
if (!__isValid) return false;
var buffer = __source.buffer;
var wordSize = buffer.bitsPerSample >> 3, bitUnsignedSize = 1 << buffer.bitsPerSample, bitSize = 1 << (buffer.bitsPerSample - 1);
var pos = Math.floor(time * buffer.sampleRate / 1000 * buffer.channels * wordSize), size = 0, buf;
var leftMin = 0, leftMax = 0, rightMin = 0, rightMax = 0;
var wordSize = buffer.bitsPerSample >> 3, byteSize = 1 << (buffer.bitsPerSample - 1);
var pos = Math.floor(time * buffer.sampleRate / 1000 * buffer.channels * wordSize);
var leftMin = 0, leftMax = 0, rightMin = 0, rightMax = 0, size = 0, buf;
#if lime_cffi
var backend = __source.__backend, i = 0;
@@ -175,25 +175,14 @@ import lime.media.openal.AL;
size = #if js buf.byteLength #else buf.length #end;
}
var s = Math.floor(Math.min(buffer.sampleRate / 80, 512)), c = Math.floor((pos % (wordSize * buffer.channels)) / wordSize), b = 0, w = 0;
pos -= pos % wordSize;
var s = Math.floor(Math.min(buffer.sampleRate / 80, 512)), c = 0, b;
pos -= pos % (buffer.channels * wordSize);
while (s > 0) {
if (wordSize == 1) b = #if js buf[pos++] #else buf.get(pos++) #end - bitSize;
else {
while (w < buffer.bitsPerSample) {
b |= #if js buf[pos] #else buf.get(pos) #end << w;
w += 8;
pos++;
}
if (b > bitSize) b -= bitUnsignedSize;
}
if (c % 2 == 0) {
if (leftMax < b) leftMax = b; else if (leftMin < (b = -b)) leftMin = b;
}
else if (rightMax < b) rightMax = b; else if (rightMin < (b = -b)) rightMin = b;
if (pos >= size) #if lime_cffi {
b = funkin.backend.utils.AudioAnalyzer.getByte(buf, pos, wordSize);
if (c % 2 == 0) ((b > leftMax) ? (leftMax = b) : (if ((b = -b) > leftMin) (leftMin = b)));
else ((b > rightMax) ? (rightMax = b) : (if ((b = -b) > rightMin) (rightMin = b)));
if ((pos += wordSize) >= size) #if lime_cffi {
if (!backend.streamed || ++i >= backend.bufferDatas.length) break;
size = backend.bufferSizes[i];
buf = backend.bufferDatas[i].buffer;
@@ -205,13 +194,12 @@ import lime.media.openal.AL;
c = 0;
s--;
}
w = b = 0;
}
if (buffer.channels == 1) __rightPeak = (__leftPeak = (leftMax + leftMin) / bitSize);
if (buffer.channels == 1) __rightPeak = (__leftPeak = (leftMax + leftMin) / byteSize);
else {
__leftPeak = (leftMax + leftMin) / bitSize;
__rightPeak = (rightMax + rightMin) / bitSize;
__leftPeak = (leftMax + leftMin) / byteSize;
__rightPeak = (rightMax + rightMin) / byteSize;
}
#end