[Android] [RFC PATCH 0/3] OMX: android hardware buffers

[Martin Storsjö]

On Thu, 26 Jun 2014, Thomas Guillem wrote:

> Hi,
>
> Here is my set of patches that goes with my other set of patches I proposed on
> vlc-devel mailing list that enable android hardware buffers on OMX.
>
> - I added some symbols on android-libs that are needed by GraphicBuffer on
>   iomx.cpp.
>
> - I also added some gingerbread headers to enable iomx_hwbuffer.c build, but
>   I'm not sure that we can use HW buffer on gingerbread, I need to check that
>   later.
>
> I also have local big patches that add headers for jb, jbmr2 and kitkat, but I
> don't know if submitting a 6MB patch is well appreciated on a mailing list.

It's probably better to push those to a git clone somewhere (e.g. github) 
and we can fetch them from there, instead of mailing them.

I'm pretty sure plain jb used to work with the ics headers at least for 
the normal indirect rendering, but the ABI for direct rendering might 
require separate headers.

I also thought that the normal iomx decoding on jbmr2 worked fine with ics 
headers, but when I tested this now I do indeed need new headers for this 
as well. So either we should add those and build a separate 
libiomx-jbmr2.so, or change the limits in 
vlc-android/src/org/videolan/libvlc/LibVLC.java to make sure we don't try 
to load libiomx-ics.so on JB MR 2. (Is there any modern device where 
MediaCodec is available, where it works worse than IOMX?)

// Martin