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Add isPalette and bitsPerSample metadata, deprecate paletteBitDepth

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Lovell Fuller
2024-10-29 09:11:19 +00:00
parent 6480a94181
commit 3154af776e
9 changed files with 42 additions and 9 deletions
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16
src/metadata.cc
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@@ -47,8 +47,11 @@ class MetadataWorker : public Napi::AsyncWorker {
if (image.get_typeof("interlaced") == G_TYPE_INT) {
baton->isProgressive = image.get_int("interlaced") == 1;
}
if (image.get_typeof("palette-bit-depth") == G_TYPE_INT) {
baton->paletteBitDepth = image.get_int("palette-bit-depth");
if (image.get_typeof(VIPS_META_PALETTE) == G_TYPE_INT) {
baton->isPalette = image.get_int(VIPS_META_PALETTE);
}
if (image.get_typeof(VIPS_META_BITS_PER_SAMPLE) == G_TYPE_INT) {
baton->bitsPerSample = image.get_int(VIPS_META_BITS_PER_SAMPLE);
}
if (image.get_typeof(VIPS_META_N_PAGES) == G_TYPE_INT) {
baton->pages = image.get_int(VIPS_META_N_PAGES);
@@ -171,8 +174,13 @@ class MetadataWorker : public Napi::AsyncWorker {
info.Set("chromaSubsampling", baton->chromaSubsampling);
}
info.Set("isProgressive", baton->isProgressive);
if (baton->paletteBitDepth > 0) {
info.Set("paletteBitDepth", baton->paletteBitDepth);
info.Set("isPalette", baton->isPalette);
if (baton->bitsPerSample > 0) {
info.Set("bitsPerSample", baton->bitsPerSample);
if (baton->isPalette) {
// Deprecated, remove with libvips 8.17.0
info.Set("paletteBitDepth", baton->bitsPerSample);
}
}
if (baton->pages > 0) {
info.Set("pages", baton->pages);

6
src/metadata.h
View File

@@ -24,7 +24,8 @@ struct MetadataBaton {
int density;
std::string chromaSubsampling;
bool isProgressive;
int paletteBitDepth;
bool isPalette;
int bitsPerSample;
int pages;
int pageHeight;
int loop;
@@ -59,7 +60,8 @@ struct MetadataBaton {
channels(0),
density(0),
isProgressive(false),
paletteBitDepth(0),
isPalette(false),
bitsPerSample(0),
pages(0),
pageHeight(0),
loop(-1),