kinow commented on a change in pull request #55: Add support to read multiple
images from GIF
URL: https://github.com/apache/commons-imaging/pull/55#discussion_r341763476
##########
File path:
src/main/java/org/apache/commons/imaging/formats/gif/GifImageParser.java
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@@ -439,6 +439,16 @@ private GifBlock findBlock(final List<GifBlock> blocks,
final int code) {
return null;
}
+ private <T extends GifBlock> List<T> findAllBlocks(final List<GifBlock>
blocks, final int code) {
+ final List<T> filteredBlocks = new ArrayList<>();
+ for (final GifBlock gifBlock : blocks) {
+ if (gifBlock.blockCode == code) {
+ filteredBlocks.add((T) gifBlock);
Review comment:
Hmmm, this is tricky. We could have a malformed GIF that has a block with
the wrong code, resulting in a runtime exception here I think? Or if I request
something like `List<ImageDescriptor> descriptors =
findAllBlocks(imageContents.blocks, GRAPHIC_CONTROL_EXTENSION);`. I wonder if
we could come up with a different approach to avoid issues like this?
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