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Fix seekbar crashing on drag with faulty frameset

This commit is contained in:
Thompson3142 2024-10-07 00:13:10 +02:00
parent 035c394cf6
commit fd957a31d9
1 changed files with 41 additions and 11 deletions
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52
app/src/main/java/org/schabi/newpipe/player/seekbarpreview/SeekbarPreviewThumbnailHolder.java
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@ -132,17 +132,8 @@ public class SeekbarPreviewThumbnailHolder {
// Get the bounds where the frame is found
final int[] bounds = frameset.getFrameBoundsAt(currentPosMs);
generatedDataForUrl.put(currentPosMs, () -> {
// It can happen, that the original bitmap could not be downloaded
// In such a case - we don't want a NullPointer - simply return null
if (srcBitMap == null) {
return null;
}
// Cut out the corresponding bitmap form the "srcBitMap"
return Bitmap.createBitmap(srcBitMap, bounds[1], bounds[2],
frameset.getFrameWidth(), frameset.getFrameHeight());
});
generatedDataForUrl.put(currentPosMs,
createBitmapSupplier(srcBitMap, bounds, frameset));
currentPosMs += frameset.getDurationPerFrame();
pos++;
@ -165,6 +156,45 @@ public class SeekbarPreviewThumbnailHolder {
}
}
private Supplier<Bitmap> createBitmapSupplier(final Bitmap srcBitMap,
final int[] bounds,
final Frameset frameset) {
return () -> {
// It can happen, that the original bitmap could not be downloaded
// (or it was recycled though that should not happen)
// In such a case - we don't want a NullPointer/
// "cannot use a recycled source in createBitmap" Exception -> simply return null
if (srcBitMap == null || srcBitMap.isRecycled()) {
return null;
}
// Under some rare circumstances the youtube api returns slightly too small storyboards,
// (or not the matching frame width/height)
// This would lead to createBitmap cutting out a bitmap that is out of bounds,
// so we need to adjust the bounds accordingly
if (srcBitMap.getWidth() < bounds[1] + frameset.getFrameWidth()) {
bounds[1] = srcBitMap.getWidth() - frameset.getFrameWidth();
}
if (srcBitMap.getHeight() < bounds[2] + frameset.getFrameHeight()) {
bounds[2] = srcBitMap.getHeight() - frameset.getFrameHeight();
}
// Cut out the corresponding bitmap form the "srcBitMap"
final Bitmap cutOutBitmap = Bitmap.createBitmap(srcBitMap, bounds[1], bounds[2],
frameset.getFrameWidth(), frameset.getFrameHeight());
// If the cut out bitmap is identical to its source,
// we need to copy the bitmap to create a new instance.
// createBitmap allows itself to return the original object that is was created with
// this leads to recycled bitmaps being returned (if they are identical)
// Reference: https://stackoverflow.com/a/23683075 + first comment
// Fixes: https://github.com/TeamNewPipe/NewPipe/issues/11461
return cutOutBitmap == srcBitMap
? cutOutBitmap.copy(cutOutBitmap.getConfig(), true) : cutOutBitmap;
};
}
@Nullable
private Bitmap getBitMapFrom(final String url) {
if (url == null) {