On Tue, 2005-10-11 at 07:33 +0100, Stutty wrote: > I have just come across one of these 136 byte .png thumbnails, but I'm > not sure I have the same problem because: > > a) I'm using svn revision 7192 > b) I'm not using commercial flagging > c) The point 4 minutes into the program (where the Thumb is generated) > is a completely blank black screen - as is the png. > d) The png file appears to have valid headers within it, and opens > okay in gimp, etc. It is a good PNG, it is just not avoiding black screens because you don't have commercial flagging turned on.
> Anyway I've uploaded the offending png > [http://www.salts.plus.com/blank.png], is it possible that it is > actually a valid PNG, or is there another problem with thumbnail > generation? > > I'm assuming there is a good reason why the macro "READ_TEST_SIZE" is > set to the number 204, i.e. this is larger than the usual minimum file > size? I'm assuming this is the smallest possible NUV file, but the minimum PNG file is just 8 bytes. The minimum PNG file containing anything is 20 bytes, so that should probably be our test size for a PNG. -- Daniel
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