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TAD: auto filename selection

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minjaesong
2025-10-29 02:11:04 +09:00
parent f06f339d99
commit a67d8b5f08
3 changed files with 171 additions and 36 deletions
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24
video_encoder/encoder_tad.c
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@@ -22,16 +22,16 @@ static const float TAD32_COEFF_SCALARS[] = {64.0f, 45.255f, 32.0f, 22.627f, 16.0
// Linearly spaced from 1.0 (LL) to 2.0 (H9)
// These weights are multiplied by quantiser_scale during quantization
static const float BASE_QUANTISER_WEIGHTS[] = {
1.0f, // LL (L9) - finest preservation
1.111f, // H (L9)
1.222f, // H (L8)
1.333f, // H (L7)
1.444f, // H (L6)
1.556f, // H (L5)
1.667f, // H (L4)
1.778f, // H (L3)
1.889f, // H (L2)
2.0f // H (L1) - coarsest quantization
1.0f, // LL (L9) - finest preservation
1.0f, // H (L9)
1.0f, // H (L8)
1.0f, // H (L7)
1.0f, // H (L6)
1.1f, // H (L5)
1.2f, // H (L4)
1.3f, // H (L3)
1.4f, // H (L2)
1.5f // H (L1) - coarsest quantization
};
// Forward declarations for internal functions
@@ -223,9 +223,9 @@ static void compress_gamma(float *left, float *right, size_t count) {
for (size_t i = 0; i < count; i++) {
// encode(x) = sign(x) * |x|^γ where γ=0.5
float x = left[i];
left[i] = signum(x) * sqrtf(fabsf(x));
left[i] = signum(x) * powf(fabsf(x), 1.0f / 1.4142f);
float y = right[i];
right[i] = signum(y) * sqrtf(fabsf(y));
right[i] = signum(y) * powf(fabsf(y), 1.0f / 1.4142f);
}
}