Question

I am compiling a project that uses both ffmpeg and Ogre.
Now on Windows, everything works fine.

But when I want to compile a file with the following line of code:

Ogre::PixelFormat format = Ogre::PF_BYTE_RGBA;

The compiler gives the following error:

error: ‘AVPixelFormat’ is not a member of ‘Ogre’

Which is strange in many ways, as I have not only specified the Ogre namespace with ::, but also there is no AVPixelFormat in Ogre. How does gcc confuse “PixelFormat” with “AVPixelFormat”?

And how can I get rid of that?

I’d love to use int here instead of an enum, but another Ogre function requires format to be in Ogre::PixelFormat.

Answer 1

Preprocess it first using gcc -E, then grep through the file looking for AVPixelFormat or PixelFormat. I suspect you have a #define or a typedef floating around, you just need to find where this happens, and a precompiled source file is the place this will become apparent.