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Expose delay/loop metadata for animated images #1905

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Lovell Fuller
2020-01-09 22:51:08 +00:00
parent 057074b238
commit 4a745f2d2e
6 changed files with 73 additions and 0 deletions
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17
src/metadata.cc
View File

@@ -77,6 +77,12 @@ class MetadataWorker : public Nan::AsyncWorker {
if (image.get_typeof(VIPS_META_PAGE_HEIGHT) == G_TYPE_INT) {
baton->pageHeight = image.get_int(VIPS_META_PAGE_HEIGHT);
}
if (image.get_typeof("loop") == G_TYPE_INT) {
baton->loop = image.get_int("loop");
}
if (image.get_typeof("delay") == VIPS_TYPE_ARRAY_INT) {
baton->delay = image.get_array_int("delay");
}
if (image.get_typeof("heif-primary") == G_TYPE_INT) {
baton->pagePrimary = image.get_int("heif-primary");
}
@@ -169,6 +175,17 @@ class MetadataWorker : public Nan::AsyncWorker {
if (baton->pageHeight > 0) {
Set(info, New("pageHeight").ToLocalChecked(), New<v8::Uint32>(baton->pageHeight));
}
if (baton->loop >= 0) {
Set(info, New("loop").ToLocalChecked(), New<v8::Uint32>(baton->loop));
}
if (!baton->delay.empty()) {
int i = 0;
v8::Local<v8::Array> delay = New<v8::Array>(baton->delay.size());
for (int const d : baton->delay) {
Set(delay, i++, New<v8::Number>(d));
}
Set(info, New("delay").ToLocalChecked(), delay);
}
if (baton->pagePrimary > -1) {
Set(info, New("pagePrimary").ToLocalChecked(), New<v8::Uint32>(baton->pagePrimary));
}

3
src/metadata.h
View File

@@ -36,6 +36,8 @@ struct MetadataBaton {
int paletteBitDepth;
int pages;
int pageHeight;
int loop;
std::vector<int> delay;
int pagePrimary;
bool hasProfile;
bool hasAlpha;
@@ -62,6 +64,7 @@ struct MetadataBaton {
paletteBitDepth(0),
pages(0),
pageHeight(0),
loop(-1),
pagePrimary(-1),
hasProfile(false),
hasAlpha(false),