Bug#625944: libavcodec52: JPEG produced with Intel JPEG lib loaded upside-down

Reinhard Tartler siretart at tauware.de
Sat May 7 15:11:37 UTC 2011


On Sat, May 07, 2011 at 11:35:08 (CEST), Julien BLACHE wrote:

> JPEG images produced by the Intel JPEG library are loaded upside-down
> and with some corruption.
>
> There is an explicit check for the Intel library in the mjpeg decoder,
> as flipping the image was found to be necessary years ago; inhibiting
> this fixes the issue.
>
> The images I have here are from version 1.51.12.44 of the library; either
> the library has been fixed at some point in time, or some other way to
> determine whether the image needs to be flipped is needed.
>
> Test images available on request.

Yes, please do send me the images and your ffmpeg invocation, preferably
by attaching to this bugreport.

-- 
Gruesse/greetings,
Reinhard Tartler, KeyID 945348A4





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