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avif: warn about non-recommended libavif configuration

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Daniel Novomeský 2022-03-09 15:28:38 +01:00
parent d9729b7190
commit 8732fc8487
1 changed files with 10 additions and 0 deletions
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10
src/imageformats/avif.cpp
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@ -446,6 +446,16 @@ bool QAVIFHandler::write(const QImage &image)
return false;
}
const char *encoder_name = avifCodecName(AVIF_CODEC_CHOICE_AUTO, AVIF_CODEC_FLAG_CAN_ENCODE);
if (!encoder_name) {
qWarning("Cannot save AVIF images because libavif was built without AV1 encoders!");
return false;
}
if (m_quality >= 100 && !avifCodecName(AVIF_CODEC_CHOICE_AOM, AVIF_CODEC_FLAG_CAN_ENCODE)) {
qWarning("You are using %s encoder. It is recommended to enable libAOM encoder in libavif for better near-lossless compression.", encoder_name);
}
int maxQuantizer = AVIF_QUANTIZER_WORST_QUALITY * (100 - qBound(0, m_quality, 100)) / 100;
int minQuantizer = 0;
int maxQuantizerAlpha = 0;