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TEV now encodes colour

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minjaesong
2025-08-18 02:46:34 +09:00
parent c7c4ca6d1c
commit 964728dd59
1 changed files with 7 additions and 8 deletions
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15
video_encoder/encoder_tev.c
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@@ -184,15 +184,14 @@ static void rgb_to_4096(uint8_t *rgb, uint8_t *rg, uint8_t *ba, int pixels) {
uint8_t g = rgb[i * 3 + 1];
uint8_t b = rgb[i * 3 + 2];
// For grayscale videos like Bad Apple, use luminance for all channels
uint8_t luma = (r * 299 + g * 587 + b * 114) / 1000; // ITU-R BT.601 weights
// Convert RGB to 4-bit per channel for full color
uint8_t r4 = (r * 15 + 127) / 255;
uint8_t g4 = (g * 15 + 127) / 255;
uint8_t b4 = (b * 15 + 127) / 255;
// Convert to 4-bit per channel
uint8_t luma4 = (luma * 15 + 127) / 255;
// Correct format: R,G in MSBs, B,A in MSBs - with alpha=15 for opaque
rg[i] = (luma4 << 4) | luma4; // R in MSB, G in LSB
ba[i] = (luma4 << 4) | 15; // B in MSB, A=15 (opaque) in LSB
// Correct 4096-color format: R,G in MSBs, B,A in MSBs - with alpha=15 for opaque
rg[i] = (r4 << 4) | g4; // R in MSB, G in LSB
ba[i] = (b4 << 4) | 15; // B in MSB, A=15 (opaque) in LSB
}
}