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avif: YCgCo-Re decoding fix

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This commit is contained in:
Daniel Novomeský
2025-12-24 14:43:46 +01:00
parent 30308f3541
commit 8c9a7e88e5
1 changed files with 8 additions and 2 deletions
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10
src/imageformats/avif.cpp
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@ -265,9 +265,15 @@ bool QAVIFHandler::decode_one_frame()
} }
} }
uint32_t resultdepth = m_decoder->image->depth;
if (m_decoder->image->matrixCoefficients == 16 && m_decoder->image->yuvFormat == AVIF_PIXEL_FORMAT_YUV444 && resultdepth == 10) {
// 10-bit YCgCo-Re AVIF must be decoded to 8bit
resultdepth = 8;
}
QImage::Format resultformat; QImage::Format resultformat;
if (m_decoder->image->depth > 8) { if (resultdepth > 8) {
if (loadalpha) { if (loadalpha) {
resultformat = QImage::Format_RGBA64; resultformat = QImage::Format_RGBA64;
} else { } else {
@ -405,7 +411,7 @@ bool QAVIFHandler::decode_one_frame()
rgb.maxThreads = m_decoder->maxThreads; rgb.maxThreads = m_decoder->maxThreads;
#endif #endif
if (m_decoder->image->depth > 8) { if (resultdepth > 8) {
rgb.depth = 16; rgb.depth = 16;
rgb.format = AVIF_RGB_FORMAT_RGBA; rgb.format = AVIF_RGB_FORMAT_RGBA;