[Bug 234030] kio_thumbnail, memory leaks and high CPU usage

[Dawit Alemayehu]

https://bugs.kde.org/show_bug.cgi?id=234030





--- Comment #13 from Dawit Alemayehu <adawit kde org>  2011-12-08 19:46:28 ---
(In reply to comment #11)
> Also I reported the problem with the video preview. So I think it shouldn't
> ignore some specific files as there is many formats and it's hard to handle
> them all. Instead it should detect when something going wrong and stop. 

Ahh... The bug was not in the thumbnail generator. It was in the QImage plugin
that reads the XCF file formats. As such there is no way the thumbnail
generator can workaround or detect bugs in a completely different piece of
code. 

> It should check the data for validity before process.

How should it exactly do that ? Understand every image, text and other content
format intimately by itself ? It cannot. Anyhow, I closed this bug report
because there are several others that deal with problems generating thumbail
for video files. You yourself seem to have commented on those ; so this is at
best simply a duplicate. 

BTW, the fact that dolphin attempts to generate a preview for files that are in
the process of being downloaded is an issue of dolphin itself and the fact that
ffmpegthumbnailer generator eats all the CPU attempting to generate a preview
image in such circumstances is is something that needs to be fixed in the
kdemultimedia module, which is where the ffmpegthumbnail generator plugin is
located.

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