Problems compiling libva-v4l2-request about libva-v4l2-request

[villalvilla]

I answer myself, because after posting to this github and linux-sunxi list, and waiting 1 week or so, I can't see any kind of help for new developers that want to contribute giving you feedback to this iniciative:

As I could see, you have some mistakes in your configure.ac that make it imposible to find linux kernel headers installed in the system. As a matter of fact, you should consider adding the declaration AC_CONFIG_MACRO_DIRS([m4]) to you configure.ac and asking for installed linux headers in the system in your aclocal.m4 file. That way, the needed macros V4L2_PIX_FMT_MPEG2_SLICE, V4L2_PIX_FMT_H264_SLICE and V4L2_PIX_FMT_HEVC_SLICE will be available. It seems like you continue using de deprecated way of adding new paths with ACLOCAL_AMFLAGS, so newer distros won't be able to detect those new macros defined in the installed linux headers.

I could help patching the required configuration files of the driver. I use debian, so I could only warrantee issues related to this distro.

Thanks for your help,
Miguel

[mripard]

Not all the patches are upstream yet, so if you're using the debian kernel as is, it's totally expected that the libva doesn't work.

You'll either need to apply our patches yourself, or use one of the branches we have, as documented there:
https://linux-sunxi.org/Sunxi-cedrus#Linux

Beware that this is very much a work in progress right now.