Per the documentation: "Subclasses should call super at some
point in their implementation."

Not used anymore, cf. previous commit.

This reverts commit be5856e5.

The display plugin doesn't need to be recycled, not like the window plugin.

And check if the display need to be stopped from vout_Stop().

There will be designated classes for audio and video

When rendering in Direct3D11 to NV12 we use 2 planes in the same texture.

In order to use several different ctx from main().

No functional changes.

Regression from ad183c8f

It would have been used as NULL otherwise