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Fix starting to read at wrong offset, now skips header

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Simon Kammermeier 2022-08-30 15:38:12 +02:00
parent 326b98d5e5
commit 6608f61353
1 changed files with 5 additions and 0 deletions
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imageio/imageio-webp/src/main/java/com/twelvemonkeys/imageio/plugins/webp/lossless/VP8LDecoder.java
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@ -87,6 +87,11 @@ public final class VP8LDecoder {
public void readVP8Lossless(final WritableRaster raster, final boolean topLevel) throws IOException { public void readVP8Lossless(final WritableRaster raster, final boolean topLevel) throws IOException {
//https://github.com/webmproject/libwebp/blob/666bd6c65483a512fe4c2eb63fbc198b6fb4fae4/src/dec/vp8l_dec.c#L1114 //https://github.com/webmproject/libwebp/blob/666bd6c65483a512fe4c2eb63fbc198b6fb4fae4/src/dec/vp8l_dec.c#L1114
//Skip past already read parts of header (signature, width, height, alpha, version) 5 Bytes in total
if (topLevel) {
imageInput.seek(imageInput.getStreamPosition() + 5);
}
int xSize = raster.getWidth(); int xSize = raster.getWidth();
int ySize = raster.getHeight(); int ySize = raster.getHeight();