Build POT On Raspberry Pi3

[ascnp]

Is anyone succeed building POT on raspberry pi3?
I really need help.

I just follow the blog and build ffmpeg and build qtmultimedia, finally build pocplayer, but it seems strange that I did not use ffmpeg and qtmultimedia seemed same as before. So pocplayer is still use the gstreamer as backen.
I think I am not get luca's point. And I have asked him under his blog but still can't build it. I feel really embarrassed bother him for stupid questions day by day.

Now I have cross-compiled qt5.7 with gstreamer1.0 enabled on pi3. And I finished build ffmpeg, I got a include and lib folder in ffmpeg.

I think I made some mistakes when rebuilt multimedia.