Help with gstreamer-vaapi + rockchip vpu vaapi driver

[Ezequiel Garcia]

On 17 August 2018 at 06:04, Víctor Jáquez <vjaquez at igalia.com> wrote:
> On Thu, 16 Aug 2018 at 20:15, Ezequiel Garcia wrote:
>> On 16 August 2018 at 06:22, Víctor Jáquez <vjaquez at igalia.com> wrote:
>> > Ezequiel,
>> >
>> > As v4l2 driver is not in the whitelist of VA driver backends you should disable
>> > the backend test, setting the environment variable
>> >
>> > $ export GST_VAAPI_ALL_DRIVERS=1
>> >
>> > For more info you can glance this post:
>> >
>> > https://blogs.igalia.com/vjaquez/2018/03/28/gstreamer-va-api-troubleshooting/
>> >
>>
>> Hey Victor,
>>
>> The above didn't work, but tracing with some debugging levels I found this:
>>
>> 0:00:00.060866458  1435     0x22788600 ERROR                default
>> gstvaapi.c:254:plugin_init: Cannot create a VA display
>>
>> Which seems to be the reason why is not working. So I guess the next
>> step is look at my backend
>> and libva and see why it refuses to create the display.
>
> What's your pipeline?
>

Oh, no real pipeline, just:

$ gst-inspect-1.0 vaapi

>>
>> Two things I am wondering are:
>> * Is there any "easy" way to build and use the master branch? I'm
>> using Buildroot to generate
>> this rootfs. AFAICS, I will have to build gstreamer (and all the
>> plugins to use master too), and there
>> is no way to use 1.14.2 for everything and master branch for vaapi.
>
> I guess there are two options: 1) compile all gstreamer in the board, using
> gst-build[1] or gst-uninstalled (I used to do that in different boards) or tell
> buildroot to use a local git clone [2].
>
> 1. https://blogs.igalia.com/vjaquez/2018/04/17/how-to-setup-a-gst-build-environment-with-intels-va-api-stack/
> 2. https://buildroot.org/downloads/manual/manual.html#_using_buildroot_during_development
>

Yes, I found those posts and I was planning to follow them.
Guess it won't get any easier than that.

>>
>> * Any easy way to turn on libva messages?
>
> exporting the variable LIBVA_TRACE=/path/to/trace_file_template
>

Nice, thanks!
-- 
Ezequiel García, VanguardiaSur
www.vanguardiasur.com.ar