This makes use of the recently added qtdemux changes to verify
that muxing works. At this stage its only used for unpadded RGB,
RGBA, BGRA, BGR and GRAY8 since that is all qtdemux supports
at this time. However the approach is general.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/2066>
This adds support for direct encoding of common formats into ISO base media file
format.
There are unit tests for formats that are not completely supported, to
check that those functions work correctly, and to ease future extension.
End-to-end testing currently requires use of gpac to validate files.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1990>
