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TAV: code cleanup, better preset selection

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minjaesong
2025-11-24 11:16:19 +09:00
parent dbbb471a11
commit 6132012e74
5 changed files with 93 additions and 152 deletions
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44
video_encoder/decoder_tav.c
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@@ -15,7 +15,7 @@
#include <getopt.h>
#include <signal.h>
#include "decoder_tad.h" // Shared TAD decoder library
#include "tav_avx512.h" // AVX-512 SIMD optimizations
#include "tav_avx512.h" // AVX-512 SIMD optimisations
#define DECODER_VENDOR_STRING "Decoder-TAV 20251124 (avx512)"
@@ -315,7 +315,7 @@ static void dequantise_dwt_subbands_perceptual(int q_index, int q_y_global, cons
// for bright pixels, creating dark DWT-pattern blemishes
#ifdef __AVX512F__
// Use AVX-512 optimized dequantization if available (1.1x speedup against -Ofast)
// 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;
if (g_simd_level >= SIMD_AVX512F && subband->coeff_count >= 16 && subband_end <= coeff_count) {
@@ -2713,7 +2713,7 @@ static void print_usage(const char *prog) {
printf("Usage: %s -i input.tav -o output.mkv\n\n", prog);
printf("Options:\n");
printf(" -i <file> Input TAV file\n");
printf(" -o <file> Output MKV file (FFV1 video + PCMu8 audio)\n");
printf(" -o <file> Output MKV file (optional, auto-generated from input)\n");
printf(" -v Verbose output\n");
printf(" -h, --help Show this help\n\n");
printf("Supported features (matches TSVM decoder):\n");
@@ -2767,12 +2767,46 @@ int main(int argc, char *argv[]) {
}
}
if (!input_file || !output_file) {
fprintf(stderr, "Error: Both input and output files are required\n\n");
if (!input_file) {
fprintf(stderr, "Error: Input file is required\n\n");
print_usage(argv[0]);
return 1;
}
// Generate output filename if not provided
if (!output_file) {
size_t input_len = strlen(input_file);
output_file = malloc(input_len + 32); // Extra space for extension
// Find the last directory separator
const char *basename_start = strrchr(input_file, '/');
if (!basename_start) basename_start = strrchr(input_file, '\\');
basename_start = basename_start ? basename_start + 1 : input_file;
// Copy directory part
size_t dir_len = basename_start - input_file;
strncpy(output_file, input_file, dir_len);
// Find the .tad extension
const char *ext = strrchr(basename_start, '.');
if (ext && (strcmp(ext, ".tav") == 0 || strcmp(ext, ".mv3") == 0)) {
// Copy basename without .tav or .mv3
size_t name_len = ext - basename_start;
strncpy(output_file + dir_len, basename_start, name_len);
output_file[dir_len + name_len] = '\0';
} else {
// No .tad extension, copy entire basename
strcpy(output_file + dir_len, basename_start);
}
// Append appropriate extension
strcat(output_file, ".mkv");
if (verbose) {
printf("Auto-generated output path: %s\n", output_file);
}
}
// Create temporary audio file path
char temp_audio_file[256];
snprintf(temp_audio_file, sizeof(temp_audio_file), "/tmp/tav_audio_%d.wav", getpid());