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imgcodecs: avif: support metadata for 1ch Mat

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This commit is contained in:
Kumataro
2025-11-24 08:19:25 +09:00
parent 49607438bd
commit 6617a7ca34
2 changed files with 26 additions and 22 deletions
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modules/imgcodecs/src/grfmt_avif.cpp
+18 -19
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@@ -91,10 +91,7 @@ AvifImageUniquePtr ConvertToAvif(const cv::Mat &img, bool lossless, int bit_dept
result->yuvPlanes[0] = img.data;
result->yuvRowBytes[0] = img.step[0];
result->imageOwnsYUVPlanes = AVIF_FALSE;
return AvifImageUniquePtr(result);
}
if (lossless) {
} else if (lossless) {
result =
avifImageCreate(width, height, bit_depth, AVIF_PIXEL_FORMAT_YUV444);
if (result == nullptr) return nullptr;
@@ -139,22 +136,24 @@ AvifImageUniquePtr ConvertToAvif(const cv::Mat &img, bool lossless, int bit_dept
#endif
}
avifRGBImage rgba;
avifRGBImageSetDefaults(&rgba, result);
if (img.channels() == 3) {
rgba.format = AVIF_RGB_FORMAT_BGR;
} else {
CV_Assert(img.channels() == 4);
rgba.format = AVIF_RGB_FORMAT_BGRA;
}
rgba.rowBytes = (uint32_t)img.step[0];
rgba.depth = bit_depth;
rgba.pixels =
const_cast<uint8_t *>(reinterpret_cast<const uint8_t *>(img.data));
if (img.channels() > 1) {
avifRGBImage rgba;
avifRGBImageSetDefaults(&rgba, result);
if (img.channels() == 3) {
rgba.format = AVIF_RGB_FORMAT_BGR;
} else {
CV_Assert(img.channels() == 4);
rgba.format = AVIF_RGB_FORMAT_BGRA;
}
rgba.rowBytes = (uint32_t)img.step[0];
rgba.depth = bit_depth;
rgba.pixels =
const_cast<uint8_t *>(reinterpret_cast<const uint8_t *>(img.data));
if (avifImageRGBToYUV(result, &rgba) != AVIF_RESULT_OK) {
avifImageDestroy(result);
return nullptr;
if (avifImageRGBToYUV(result, &rgba) != AVIF_RESULT_OK) {
avifImageDestroy(result);
return nullptr;
}
}
return AvifImageUniquePtr(result);
}