audio/video: add binding friendly caps APIs
As discussed on gst-plugins-rs!343 (comment 510665) we'd need more binding friendly version of GST_VIDEO_FORMATS_ALL
and GST_VIDEO_CAPS_MAKE
.
Marking as WIP
until we agree on the API. We also need an equivalent of GST_VIDEO_CAPS_MAKE_WITH_FEATURES
.
Edited by Guillaume Desmottes