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Expose palette-bit-depth metadata, requires upcoming libvips v8.8.0
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@ -68,6 +68,9 @@ class MetadataWorker : public Nan::AsyncWorker {
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if (image.get_typeof("interlaced") == G_TYPE_INT) {
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baton->isProgressive = image.get_int("interlaced") == 1;
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}
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if (image.get_typeof("palette-bit-depth") == G_TYPE_INT) {
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baton->paletteBitDepth = image.get_int("palette-bit-depth");
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}
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baton->hasProfile = sharp::HasProfile(image);
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// Derived attributes
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baton->hasAlpha = sharp::HasAlpha(image);
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@ -140,6 +143,9 @@ class MetadataWorker : public Nan::AsyncWorker {
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New<v8::String>(baton->chromaSubsampling).ToLocalChecked());
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}
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Set(info, New("isProgressive").ToLocalChecked(), New<v8::Boolean>(baton->isProgressive));
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if (baton->paletteBitDepth > 0) {
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Set(info, New("paletteBitDepth").ToLocalChecked(), New<v8::Uint32>(baton->paletteBitDepth));
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}
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Set(info, New("hasProfile").ToLocalChecked(), New<v8::Boolean>(baton->hasProfile));
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Set(info, New("hasAlpha").ToLocalChecked(), New<v8::Boolean>(baton->hasAlpha));
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if (baton->orientation > 0) {
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@ -33,6 +33,7 @@ struct MetadataBaton {
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int density;
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std::string chromaSubsampling;
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bool isProgressive;
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int paletteBitDepth;
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bool hasProfile;
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bool hasAlpha;
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int orientation;
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@ -53,6 +54,7 @@ struct MetadataBaton {
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channels(0),
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density(0),
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isProgressive(false),
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paletteBitDepth(0),
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hasProfile(false),
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hasAlpha(false),
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orientation(0),
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