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avif: Check if encoder/decoder is available in capabilities()

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The plugin can be compiled even with decoder libraries only. In a similar way of HEIC plugin I check if an encoder or a decoder is available.
This commit is contained in:
Mirco Miranda 2022-11-15 13:14:09 +00:00 committed by Daniel Novomeský
parent 9ad82ed608
commit 50846f224f
1 changed files with 18 additions and 4 deletions
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22
src/imageformats/avif.cpp
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@ -1057,12 +1057,26 @@ QPointF QAVIFHandler::CompatibleChromacity(qreal chrX, qreal chrY)
QImageIOPlugin::Capabilities QAVIFPlugin::capabilities(QIODevice *device, const QByteArray &format) const
{
static const bool isAvifDecoderAvailable(avifCodecName(AVIF_CODEC_CHOICE_AUTO, AVIF_CODEC_FLAG_CAN_DECODE) != nullptr);
static const bool isAvifEncoderAvailable(avifCodecName(AVIF_CODEC_CHOICE_AUTO, AVIF_CODEC_FLAG_CAN_ENCODE) != nullptr);
if (format == "avif") {
return Capabilities(CanRead | CanWrite);
Capabilities format_cap;
if (isAvifDecoderAvailable) {
format_cap |= CanRead;
}
if (isAvifEncoderAvailable) {
format_cap |= CanWrite;
}
return format_cap;
}
if (format == "avifs") {
return Capabilities(CanRead);
Capabilities format_cap;
if (isAvifDecoderAvailable) {
format_cap |= CanRead;
}
return format_cap;
}
if (!format.isEmpty()) {
@ -1073,10 +1087,10 @@ QImageIOPlugin::Capabilities QAVIFPlugin::capabilities(QIODevice *device, const
}
Capabilities cap;
if (device->isReadable() && QAVIFHandler::canRead(device)) {
if (device->isReadable() && QAVIFHandler::canRead(device) && isAvifDecoderAvailable) {
cap |= CanRead;
}
if (device->isWritable()) {
if (device->isWritable() && isAvifEncoderAvailable) {
cap |= CanWrite;
}
return cap;