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more encoder param tuning

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This commit is contained in:
minjaesong
2025-09-28 20:28:11 +09:00
parent 6ff634cc12
commit 65a01f36a4
3 changed files with 44 additions and 7 deletions
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16
tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt
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@@ -3950,8 +3950,8 @@ class GraphicsJSR223Delegate(private val vm: VM) {
return subbands
}
var ANISOTROPY_MULT = floatArrayOf(1.8f, 1.6f, 1.4f, 1.2f, 1.0f, 1.0f)
var ANISOTROPY_BIAS = floatArrayOf(0.2f, 0.1f, 0.0f, 0.0f, 0.0f, 0.0f)
var ANISOTROPY_MULT = floatArrayOf(2.0f, 1.8f, 1.6f, 1.4f, 1.2f, 1.0f)
var ANISOTROPY_BIAS = floatArrayOf(0.4f, 0.2f, 0.1f, 0.0f, 0.0f, 0.0f)
var ANISOTROPY_MULT_CHROMA = floatArrayOf(6.6f, 5.5f, 4.4f, 3.3f, 2.2f, 1.1f)
var ANISOTROPY_BIAS_CHROMA = floatArrayOf(1.0f, 0.8f, 0.6f, 0.4f, 0.2f, 0.0f)
@@ -5314,6 +5314,18 @@ class GraphicsJSR223Delegate(private val vm: VM) {
// Biorthogonal 13/7 inverse lifting (undo forward steps in reverse order)
// Must exactly reverse the operations from the forward transform (simplified to match 5/3 structure)
val K = 1.230174105f
// Step 1: Undo scaling - s[i] /= K, d[i] *= K
for (i in 0 until half) {
temp[i] /= K // Low-pass coefficients
}
for (i in 0 until length / 2) {
if (half + i < length) {
temp[half + i] *= K // High-pass coefficients
}
}
// Step 2: Undo update step (reverse of encoder step 2)
for (i in 0 until half) {
val leftIdx = half + i - 1