[Ffmpeg-devel] broken decode of a jpeg

Måns Rullgård mru
Tue Nov 15 21:22:47 CET 2005

Luca Ognibene <luogni at tin.it> writes:

> This jpeg is not decoded right with ffmpeg. 
> I've tried several other apps and they work all fine. I'm attaching
> to this email a test program and a jpeg.
> gcc -o decode decode.c  `pkg-config --libs --cflags libavcodec`
> ./decode image.jpg
> eog test0.pgm
> The decoded frame is compltely gray. If someone can help me fixing this
> bug.. Any comment would be helpful :)

That JPEG uses an usual encoding with the components stored
separately, and lavc doesn't know how to decode this.  Sending it
through jpegtran fixes it losslessly.

M?ns Rullg?rd
mru at inprovide.com

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