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encoder example text update

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minjaesong
2025-09-12 09:22:33 +09:00
parent 190cb130bf
commit dc223fe00b
1 changed files with 15 additions and 10 deletions
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25
video_encoder/encoder_tev.c
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@@ -219,6 +219,7 @@ typedef struct {
// Complexity statistics collection
int stats_mode; // 0 = disabled, 1 = enabled
int disable_rcf; // 0 = rcf enabled, 1 = disabled
float *complexity_values; // Array to store all complexity values
int complexity_count; // Current count of complexity values
int complexity_capacity; // Capacity of complexity_values array
@@ -852,7 +853,6 @@ static void encode_block(tev_encoder_t *enc, int block_x, int block_y, int is_ke
// Intra coding for keyframes
block->mode = TEV_MODE_INTRA;
block->mv_x = block->mv_y = 0;
block->rate_control_factor = enc->rate_control_factor;
enc->blocks_intra++;
} else {
// Implement proper mode decision for P-frames
@@ -939,7 +939,7 @@ static void encode_block(tev_encoder_t *enc, int block_x, int block_y, int is_ke
// Even skip blocks benefit from complexity analysis for consistency
float block_complexity = calculate_block_complexity_enhanced(enc->y_workspace, enc->co_workspace, enc->cg_workspace);
add_complexity_value(enc, block_complexity);
block->rate_control_factor = complexity_to_rate_factor(block_complexity);
block->rate_control_factor = (enc->disable_rcf) ? 1.f : complexity_to_rate_factor(block_complexity);
block->cbp = 0x00; // No coefficients present
// Zero out DCT coefficients for consistent format
memset(block->y_coeffs, 0, sizeof(block->y_coeffs));
@@ -954,7 +954,7 @@ static void encode_block(tev_encoder_t *enc, int block_x, int block_y, int is_ke
// Analyze complexity for motion blocks too
float block_complexity = calculate_block_complexity_enhanced(enc->y_workspace, enc->co_workspace, enc->cg_workspace);
add_complexity_value(enc, block_complexity);
block->rate_control_factor = complexity_to_rate_factor(block_complexity);
block->rate_control_factor = (enc->disable_rcf) ? 1.f : complexity_to_rate_factor(block_complexity);
block->cbp = 0x00; // No coefficients present
// Zero out DCT coefficients for consistent format
memset(block->y_coeffs, 0, sizeof(block->y_coeffs));
@@ -967,7 +967,6 @@ static void encode_block(tev_encoder_t *enc, int block_x, int block_y, int is_ke
// Motion compensation with threshold
if (motion_sad <= 1024) {
block->mode = TEV_MODE_MOTION;
block->rate_control_factor = enc->rate_control_factor;
block->cbp = 0x00; // No coefficients present
memset(block->y_coeffs, 0, sizeof(block->y_coeffs));
memset(block->co_coeffs, 0, sizeof(block->co_coeffs));
@@ -1000,7 +999,7 @@ static void encode_block(tev_encoder_t *enc, int block_x, int block_y, int is_ke
// Use enhanced complexity calculation that includes chroma information
float block_complexity = calculate_block_complexity_enhanced(enc->y_workspace, enc->co_workspace, enc->cg_workspace);
add_complexity_value(enc, block_complexity);
block->rate_control_factor = complexity_to_rate_factor(block_complexity);
block->rate_control_factor = (enc->disable_rcf) ? 1.f : complexity_to_rate_factor(block_complexity);
// Apply fast DCT transform
dct_16x16_fast(enc->y_workspace, enc->dct_workspace);
@@ -2245,6 +2244,7 @@ static void show_usage(const char *program_name) {
printf(" -v, --verbose Verbose output\n");
printf(" -t, --test Test mode: generate solid colour frames\n");
printf(" --enable-encode-stats Collect and report block complexity statistics\n");
printf(" --disable-rcf Disable per-block rate control\n");
printf(" --help Show this help\n\n");
// printf("Rate Control Modes:\n");
// printf(" Quality mode (default): Fixed quantisation based on -q parameter\n");
@@ -2272,10 +2272,11 @@ static void show_usage(const char *program_name) {
printf(" - Adaptive quality control with complexity-based adjustment\n");
printf("Examples:\n");
printf(" %s -i input.mp4 -o output.mv2 # Use default setting (q=2)\n", program_name);
printf(" %s -i input.mp4 -s 352x288 -o output.mv2 # Encode at 352x288 resolution\n", program_name);
printf(" %s -i input.avi -f 15 -q 3 -o output.mv2 # Encode at 15 frames per second with higher quality\n", program_name);
printf(" %s -i input.mp4 -S input.srt -o output.mv2 # With SubRip subtitles\n", program_name);
printf(" %s -i input.mp4 -S input.smi -o output.mv2 # With SAMI subtitles\n", program_name);
printf(" %s -i input.mkv -s cif -o output.mv2 # Encode at CIF (352x288) resolution\n", program_name);
printf(" %s -i input.mxf -f 15 -q 3 -p -o output.mv2 # Encode at 15 FPS progressive with higher quality\n", program_name);
printf(" %s -i input.webp -Q 50 -o output.mv2 # Encode at quantiser level 50\n", program_name);
printf(" %s -i input.flv -S input.srt -o output.mv2 # With SubRip subtitles\n", program_name);
printf(" %s -i input.ts -S input.smi -o output.mv2 # With SAMI subtitles\n", program_name);
// printf(" %s -i input.mp4 -b 800 -o output.mv2 # 800 kbps bitrate target\n", program_name);
// printf(" %s -i input.avi -f 15 -b 500 -o output.mv2 # 15fps @ 500 kbps\n", program_name);
// printf(" %s --test -b 1000 -o test.mv2 # Test with 1000 kbps target\n", program_name);
@@ -2333,6 +2334,7 @@ int main(int argc, char *argv[]) {
{"verbose", no_argument, 0, 'v'},
{"test", no_argument, 0, 't'},
{"enable-encode-stats", no_argument, 0, 1000},
{"disable-rcf", no_argument, 0, 1100},
{"help", no_argument, 0, '?'},
{0, 0, 0, 0}
};
@@ -2404,6 +2406,9 @@ int main(int argc, char *argv[]) {
case 1000: // --enable-encode-stats
enc->stats_mode = 1;
break;
case 1100: // --disable-rcf
enc->disable_rcf = 1;
break;
case 0:
if (strcmp(long_options[option_index].name, "help") == 0) {
show_usage(argv[0]);
@@ -2414,7 +2419,7 @@ int main(int argc, char *argv[]) {
case 'Q':
enc->qualityY = CLAMP(atoi(optarg), 0, 100);
enc->qualityCo = enc->qualityY;
enc->qualityCg = enc->qualityCo / 2;
enc->qualityCg = (enc->qualityY == 100) ? enc->qualityY : enc->qualityCo >> 2;
break;
default:
show_usage(argv[0]);