Problem installing GStreamer-vaapi

[Víctor M. Jáquez L.]

On 06/14/17 at 06:22am, Zelnes wrote:
> I have followed your advices, and I finally "installed" 1.12 (I couldn't get
> 1.13 working, because my libva version is 0.39 and it is required to have at
> least 0.40).

That might be a bug, since we haven't upgraded the libva version requirement.

> I think every-thing's good now, I checked outside the shell, 3 plugins are
> present, and in the shell more (167), and vaapi is present.
> 
> Now that's great, I can even compile without editing the makefile, as
> pkg-config treats correctly the requested uninstalled libs. But when I run
> my pipeline in the shell, that is : filesrc location="my_file.mp4" ! qtdemux
> ! vaapidecodebin ! autovideosink, it works great, and when I want to execute
> the same in-code (with appsink instead of autovideosink), it does not even
> recognize qtdemux element, fails at it's creation, and leave the program.
> Something must be missing, do you have any idea ?

You need to run (and compile) your program in the gst-uninstalled shell.

vmjl