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heif: enable saving of hej2 format

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This commit is contained in:
Daniel Novomeský 2025-03-16 18:37:48 +01:00
parent cdf3be3af1
commit 9bee29cc01
2 changed files with 24 additions and 2 deletions
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24
src/imageformats/heif.cpp
View File

@ -31,6 +31,7 @@ bool HEIFHandler::m_plugins_queried = false;
bool HEIFHandler::m_heif_decoder_available = false;
bool HEIFHandler::m_heif_encoder_available = false;
bool HEIFHandler::m_hej2_decoder_available = false;
bool HEIFHandler::m_hej2_encoder_available = false;
bool HEIFHandler::m_avci_decoder_available = false;
extern "C" {
@ -154,6 +155,14 @@ bool HEIFHandler::write_helper(const QImage &image)
break;
}
heif_compression_format encoder_codec = heif_compression_HEVC;
#if LIBHEIF_HAVE_VERSION(1, 13, 0)
if (format() == "hej2") {
encoder_codec = heif_compression_JPEG2000;
save_depth = 8; // for compatibility reasons
}
#endif
heif_chroma chroma;
if (save_depth > 8) {
if (save_alpha) {
@ -286,7 +295,7 @@ bool HEIFHandler::write_helper(const QImage &image)
}
struct heif_encoder *encoder = nullptr;
err = heif_context_get_encoder_for_format(context, heif_compression_HEVC, &encoder);
err = heif_context_get_encoder_for_format(context, encoder_codec, &encoder);
if (err.code) {
qWarning() << "Unable to get an encoder instance:" << err.message;
heif_image_release(h_image);
@ -1019,6 +1028,13 @@ bool HEIFHandler::isHej2DecoderAvailable()
return m_hej2_decoder_available;
}
bool HEIFHandler::isHej2EncoderAvailable()
{
HEIFHandler::queryHeifLib();
return m_hej2_encoder_available;
}
bool HEIFHandler::isAVCIDecoderAvailable()
{
HEIFHandler::queryHeifLib();
@ -1041,6 +1057,7 @@ void HEIFHandler::queryHeifLib()
m_heif_decoder_available = heif_have_decoder_for_format(heif_compression_HEVC);
#if LIBHEIF_HAVE_VERSION(1, 13, 0)
m_hej2_decoder_available = heif_have_decoder_for_format(heif_compression_JPEG2000);
m_hej2_encoder_available = heif_have_encoder_for_format(heif_compression_JPEG2000);
#endif
#if LIBHEIF_HAVE_VERSION(1, 19, 6)
m_avci_decoder_available = heif_have_decoder_for_format(heif_compression_AVC);
@ -1109,6 +1126,9 @@ QImageIOPlugin::Capabilities HEIFPlugin::capabilities(QIODevice *device, const Q
if (HEIFHandler::isHej2DecoderAvailable()) {
format_cap |= CanRead;
}
if (HEIFHandler::isHej2EncoderAvailable()) {
format_cap |= CanWrite;
}
return format_cap;
}
@ -1138,7 +1158,7 @@ QImageIOPlugin::Capabilities HEIFPlugin::capabilities(QIODevice *device, const Q
}
}
if (device->isWritable() && HEIFHandler::isHeifEncoderAvailable()) {
if (device->isWritable() && (HEIFHandler::isHeifEncoderAvailable() || HEIFHandler::isHej2EncoderAvailable())) {
cap |= CanWrite;
}
return cap;

2
src/imageformats/heif_p.h
View File

@ -31,6 +31,7 @@ public:
static bool isHeifDecoderAvailable();
static bool isHeifEncoderAvailable();
static bool isHej2DecoderAvailable();
static bool isHej2EncoderAvailable();
static bool isAVCIDecoderAvailable();
static bool isSupportedBMFFType(const QByteArray &header);
@ -62,6 +63,7 @@ private:
static bool m_heif_decoder_available;
static bool m_heif_encoder_available;
static bool m_hej2_decoder_available;
static bool m_hej2_encoder_available;
static bool m_avci_decoder_available;
static QMutex &getHEIFHandlerMutex();