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tev encoder finalising without residual dct

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minjaesong
2025-08-21 22:54:01 +09:00
parent f783ef934f
commit ff39a00431
2 changed files with 72 additions and 36 deletions
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27
video_encoder/encoder_tev.c
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@@ -254,8 +254,8 @@ static const uint8_t QUANT_TABLES_C[8][64] = {
#define MP2_DEFAULT_PACKET_SIZE 0x240
// Encoding parameters
#define MAX_MOTION_SEARCH 32
#define KEYFRAME_INTERVAL 120
#define MAX_MOTION_SEARCH 8
int KEYFRAME_INTERVAL = 60;
#define BLOCK_SIZE 16 // 16x16 blocks now
// Default values
@@ -521,13 +521,13 @@ static void estimate_motion(tev_encoder_t *enc, int block_x, int block_y,
int cur_offset = ((start_y + dy) * enc->width + (start_x + dx)) * 3;
int ref_offset = ((ref_y + dy) * enc->width + (ref_x + dx)) * 3;
// Compare luminance (approximate as average of RGB)
// Compare luminance using YCoCg-R luma equation
int cur_luma = (enc->current_rgb[cur_offset] +
enc->current_rgb[cur_offset + 1] +
enc->current_rgb[cur_offset + 2]) / 3;
2 * enc->current_rgb[cur_offset + 1] +
enc->current_rgb[cur_offset + 2]) / 4;
int ref_luma = (enc->previous_rgb[ref_offset] +
enc->previous_rgb[ref_offset + 1] +
enc->previous_rgb[ref_offset + 2]) / 3;
2 * enc->previous_rgb[ref_offset + 1] +
enc->previous_rgb[ref_offset + 2]) / 4;
sad += abs(cur_luma - ref_luma);
}
@@ -554,10 +554,7 @@ static void convert_rgb_to_ycocgr_block(const uint8_t *rgb_block,
int b = rgb_block[rgb_idx + 2];
// YCoCg-R transform (per specification with truncated division)
int co = r - b;
int tmp = b + (co / 2);
int cg = g - tmp;
int y = tmp + (cg / 2);
int y = (r + 2*g + b) / 4;
y_block[py * 16 + px] = CLAMP(y, 0, 255);
}
@@ -758,7 +755,8 @@ static void encode_block(tev_encoder_t *enc, int block_x, int block_y, int is_ke
memset(block->cg_coeffs, 0, sizeof(block->cg_coeffs));
enc->blocks_motion++;
return; // Skip DCT encoding, just store motion vector
} else if (motion_sad < skip_sad && (abs(block->mv_x) > 0 || abs(block->mv_y) > 0)) {
// disabling INTER mode: residual DCT is crapping out no matter what I do
/*} else if (motion_sad < skip_sad && (abs(block->mv_x) > 0 || abs(block->mv_y) > 0)) {
// Motion compensation with threshold
if (motion_sad <= 1024) {
block->mode = TEV_MODE_MOTION;
@@ -781,7 +779,7 @@ static void encode_block(tev_encoder_t *enc, int block_x, int block_y, int is_ke
block->mv_y = 0;
enc->blocks_intra++;
return;
}
}*/
} else {
// No good motion prediction - use intra mode
block->mode = TEV_MODE_INTRA;
@@ -1045,6 +1043,9 @@ static int get_video_metadata(tev_encoder_t *enc) {
enc->fps = enc->output_fps; // Use output FPS for encoding
}
}
// set keyframe interval
KEYFRAME_INTERVAL = 2 * enc->fps;
// Check for audio stream
snprintf(command, sizeof(command),