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tav: temporal CDF 5/3 is causing coeff overflow on -q 5, replacing with Haar+sports mode

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minjaesong
2025-12-02 16:07:02 +09:00
parent 046fa98025
commit bc5779d4f5
5 changed files with 1948 additions and 15 deletions
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12
video_encoder/encoder_tav.c
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@@ -12581,7 +12581,8 @@ int main(int argc, char *argv[]) {
// Enforce mandatory settings
enc->wavelet_filter = WAVELET_9_7_IRREVERSIBLE; // 9/7 spatial
enc->decomp_levels = 4; // 4 spatial levels
enc->temporal_motion_coder = 1; // CDF 5/3 temporal
enc->temporal_motion_coder = 0; // Haar temporal
enc->encoder_preset = 0x01; // Sports mode
enc->temporal_decomp_levels = 2; // 2 temporal levels
enc->channel_layout = CHANNEL_LAYOUT_YCOCG; // Y-Co-Cg only
enc->preprocess_mode = PREPROCESS_EZBC; // EZBC entropy coder
@@ -12603,7 +12604,7 @@ int main(int argc, char *argv[]) {
printf("TAV-DT: Quality level %d -> Y=%d, Co=%d, Cg=%d, TAD_quality=%d\n",
enc->quality_level, enc->quantiser_y, enc->quantiser_co, enc->quantiser_cg,
enc->quality_level);
printf("TAV-DT: Enforcing format constraints (9/7 spatial, 5/3 temporal, 4+2 levels, EZBC, monoblock)\n");
printf("TAV-DT: Enforcing format constraints (9/7 spatial, Haar temporal, sports mode, 4+2 levels, EZBC, monoblock)\n");
}
// Halve internal height for interlaced mode (FFmpeg will output half-height fields)
@@ -12615,7 +12616,7 @@ int main(int argc, char *argv[]) {
}
// Smart preset for temporal motion coder based on resolution
// For small videos (<500k pixels), use CDF 5/3 (better for fine details)
// For small videos (<500k pixels), use Haar with sports preset (better for fine details)
// For larger videos, use Haar (better compression, smoother motion matters less)
if (enc->temporal_motion_coder == -1) {
int num_pixels = enc->width * enc->height;
@@ -12632,9 +12633,10 @@ int main(int argc, char *argv[]) {
}
}
else {
enc->temporal_motion_coder = 1; // CDF 5/3
enc->temporal_motion_coder = 0; // Haar
enc->encoder_preset |= 0x01; // Sports mode
if (enc->verbose) {
printf("Auto-selected CDF 5/3 temporal wavelet (resolution: %dx%d = %d pixels, quantiser_y = %d)\n",
printf("Auto-selected Haar temporal wavelet with sports preset (resolution: %dx%d = %d pixels, quantiser_y = %d)\n",
enc->width, enc->height, num_pixels, enc->quantiser_y);
}
}