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TAV: new resolution keyword: original"

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minjaesong
2025-11-22 02:25:17 +09:00
parent be1b92f188
commit 5129e354bb
1 changed files with 37 additions and 4 deletions
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41
video_encoder/encoder_tav.c
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@@ -18,7 +18,7 @@
#include <limits.h>
#include <float.h>
#define ENCODER_VENDOR_STRING "Encoder-TAV 20251121 (3d-dwt,tad,ssf-tc)"
#define ENCODER_VENDOR_STRING "Encoder-TAV 20251122 (3d-dwt,tad,ssf-tc)"
// TSVM Advanced Video (TAV) format constants
#define TAV_MAGIC "\x1F\x54\x53\x56\x4D\x54\x41\x56" // "\x1FTSVM TAV"
@@ -136,7 +136,7 @@ typedef enum {
#define DEFAULT_ZSTD_LEVEL 15
#define DEFAULT_PCM_ZSTD_LEVEL 3
#define TEMPORAL_GOP_SIZE 24
#define TEMPORAL_GOP_SIZE_MIN 10 // Minimum GOP size to avoid decoder hiccups
#define TEMPORAL_GOP_SIZE_MIN 8 // Minimum GOP size to avoid decoder hiccups
#define TEMPORAL_DECOMP_LEVEL 2 // 3 levels make too much afterimages and nonmoving pixels
// Single-pass scene change detection constants
@@ -2231,8 +2231,37 @@ static void swap_frame_buffers(tav_encoder_t *enc) {
enc->previous_frame_rgb = enc->frame_rgb[1 - enc->frame_buffer_index];
}
// Get video dimensions from input file using ffprobe
static int get_original_resolution(const char *input_file, int *width, int *height) {
if (!input_file) {
fprintf(stderr, "Error: -s original requires -i input_file to be specified first\n");
return 0;
}
char cmd[2048];
snprintf(cmd, sizeof(cmd),
"ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=p=0 \"%s\"",
input_file);
FILE *fp = popen(cmd, "r");
if (!fp) {
fprintf(stderr, "Failed to run ffprobe\n");
return 0;
}
int result = fscanf(fp, "%d,%d", width, height);
pclose(fp);
if (result != 2) {
fprintf(stderr, "Failed to parse video dimensions from ffprobe\n");
return 0;
}
return 1;
}
// Parse resolution string like "1024x768" with keyword recognition
static int parse_resolution(const char *res_str, int *width, int *height) {
static int parse_resolution(const char *res_str, int *width, int *height, const char *input_file) {
if (!res_str) return 0;
if (strcmp(res_str, "cif") == 0 || strcmp(res_str, "CIF") == 0) {
*width = 352;
@@ -2254,6 +2283,9 @@ static int parse_resolution(const char *res_str, int *width, int *height) {
*height = DEFAULT_HEIGHT;
return 1;
}
if (strcmp(res_str, "original") == 0 || strcmp(res_str, "ORIGINAL") == 0) {
return get_original_resolution(input_file, width, height);
}
return sscanf(res_str, "%dx%d", width, height) == 2;
}
@@ -2415,6 +2447,7 @@ static void show_usage(const char *program_name) {
printf("\n -s qcif: equal to 176x144");
printf("\n -s half: equal to %dx%d", DEFAULT_WIDTH >> 1, DEFAULT_HEIGHT >> 1);
printf("\n -s default: equal to %dx%d", DEFAULT_WIDTH, DEFAULT_HEIGHT);
printf("\n -s original: use input video's original resolution");
printf("\n\n");
printf("Features:\n");
printf(" - Single DWT tile (monoblock) encoding for optimal quality\n");
@@ -10701,7 +10734,7 @@ int main(int argc, char *argv[]) {
enc->output_file = strdup(optarg);
break;
case 's':
if (!parse_resolution(optarg, &enc->width, &enc->height)) {
if (!parse_resolution(optarg, &enc->width, &enc->height, enc->input_file)) {
fprintf(stderr, "Invalid resolution format: %s\n", optarg);
cleanup_encoder(enc);
return 1;