Doesn't compile on raspberry pi about libavif

[joedrago]

Unless I'm mistaken, AOM_IMG_FMT_YV1216 was added way back in October. How old is that libaom?

If you want to go easily between AVIF and jpg/png, etc, you can try another project of mine (colorist). Currently avifdec only supports y4m, so you would need to use ffmpeg as an intermediate otherwise.

https://joedrago.github.io/colorist/

[Zanderama]

Hi,

Thanks for your reply. Yes, that explains it. I believe Raspbian buster is based on Debian buster which was only released July 19th, and I don't believe Raspbian had libaom before then in its 'stretch' release so I thought it was recent.

However, looking at the file ages implies they may be old libraries etc, from June and October 2018.

-rw-r--r-- 1 root root 10092 Jun 26 2018 /usr/include/aom/aomdx.h
-rw-r--r-- 1 root root 14421 Jun 26 2018 /usr/include/aom/aom_image.h
-rw-r--r-- 1 root root 14935 Jun 26 2018 /usr/include/aom/aom_decoder.h
-rw-r--r-- 1 root root 39301 Jun 26 2018 /usr/include/aom/aomcx.h
-rw-r--r-- 1 root root 5388 Jun 26 2018 /usr/include/aom/aom.h
-rw-r--r-- 1 root root 2995 Jun 26 2018 /usr/include/aom/aom_integer.h
-rw-r--r-- 1 root root 3309 Jun 26 2018 /usr/include/aom/aom_frame_buffer.h
-rw-r--r-- 1 root root 17631 Jun 26 2018 /usr/include/aom/aom_codec.h
-rw-r--r-- 1 root root 36928 Jun 26 2018 /usr/include/aom/aom_encoder.h
-rw-r--r-- 1 root root 2258484 Oct 5 2018 /usr/lib/arm-linux-gnueabihf/libaom.so.0
-rw-r--r-- 1 root root 293 Oct 5 2018 /usr/lib/arm-linux-gnueabihf/pkgconfig/aom.pc
lrwxrwxrwx 1 root root 11 Oct 5 2018 /usr/lib/arm-linux-gnueabihf/libaom.so -> libaom.so.0

I will take a look at your Colorist thank you!

I did try compling the most recent aom on the raspberry pi but get lots of 'always_inline' errors, "target specific option mismatch".

[Zanderama]

Hi,

I managed to recompile libaom and libavif for the Raspberry Pi, just needed to the following C Flag.

cmake AOM_SRC -DCMAKE_C_FLAGS="-mfpu=vfp -mfloat-abi=hard"

Then edit CMakeCache.txt and change

ENABLE_NEON:BOOL=OFF

Cheers,

Alex