GitLab

Fixes https://github.com/sdroege/gstreamer-rs/issues/136

brew install gst-plugins-good does not include libvpx by default causing the rtpfecserver example to fail as it uses vp8enc

Remove some unneeded lifetime annotations from video meta code and pass more parameters by reference

We stick to the default rustfmt style, but the config is needed
to ignore the auto-generated code.

Duplicates the functionality of the travis config

- enable is_equal function again (unsure why it was disabled)
- remove restriction-caps property, encoding-profile objects are
immutable
- remove cast need by using IsA<EncodingProfile> in parameters and
returning the correct type of encodingprofile subclass from the build()
functions. It used a internal hack for storing those IsA objects in
order to keep the API clean and ready to be used, this should be sorted
out as soon as we figure out how to store them in the buidlers.
- encodebin example: remove Result error propagation when it is caused
by programming mistakes. A panic will happen in those cases.
- run rustfmt

Avoid refcounting mistakes by using the right converting functions
before calling the ffi layer functions

Provide builders for the EncodingProfile so that the created objects are
imutable and can have the Send and Sync traits

This way CapsRef::copy() will return a Caps, and not a GstRc<CapsRef>.

This provides the additional wrapping as the one via get via deref will
only give back a GstRc<T> without the additional wrapping.

Regenerate with latest gir to get rid of unneeded notify signal connectors for construct-only properties

Everything apart from allocators are covered now.

So remove the add() function and instead require an
IntoIterator<Item=&VideoOverlayRetangle> in the constructor, and require
at least one item in the iterator or return None.

The structs themselves don't reference the buffer, the reference to
these structs is borrowed from the buffer.