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tav: encoder ENDT fix

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minjaesong
2025-11-29 01:58:54 +09:00
parent 3b401139e9
commit 9edeca929d
6 changed files with 52 additions and 39 deletions
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10
video_encoder/decoder_tav.c
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@@ -17,7 +17,7 @@
#include "decoder_tad.h" // Shared TAD decoder library
#include "tav_avx512.h" // AVX-512 SIMD optimisations
#define DECODER_VENDOR_STRING "Decoder-TAV 20251124 (avx512,presets)"
#define DECODER_VENDOR_STRING "Decoder-TAV 20251126 (presets)"
// TAV format constants
#define TAV_MAGIC "\x1F\x54\x53\x56\x4D\x54\x41\x56"
@@ -315,7 +315,7 @@ static void dequantise_dwt_subbands_perceptual(int q_index, int q_y_global, cons
// Previous denormalization in EZBC caused int16_t overflow (clipping at 32767)
// for bright pixels, creating dark DWT-pattern blemishes
#ifdef __AVX512F__
/*#ifdef __AVX512F__
// Use AVX-512 optimised dequantization if available (1.1x speedup against -Ofast)
// Check: subband has >=16 elements AND won't exceed buffer bounds
const int subband_end = subband->coeff_start + subband->coeff_count;
@@ -327,7 +327,7 @@ static void dequantise_dwt_subbands_perceptual(int q_index, int q_y_global, cons
effective_quantiser
);
} else {
#endif
#endif*/
// Scalar fallback or small subbands
for (int i = 0; i < subband->coeff_count; i++) {
const int idx = subband->coeff_start + i;
@@ -336,9 +336,9 @@ static void dequantise_dwt_subbands_perceptual(int q_index, int q_y_global, cons
dequantised[idx] = untruncated;
}
}
#ifdef __AVX512F__
/*#ifdef __AVX512F__
}
#endif
#endif*/
}
// Debug: Verify LL band was dequantised correctly