Clear format list and probed caps when going to NULL so if a new device
is set we'll probe the formats again instead of using previously
detected ones. Fixes bug #591747.

Hook up build infrastructure (autotools, docs, unit test).

Fixes #590797

Add the NULL caps check where it matters and also cover another case of
potential NULL caps.

Fixes #590030

When we get a BYE packet, don't do lip-sync with the SR inside because some
senders have trouble constructing valid SR packets after BYE.

After a BYE packet from a source, stop forwarding the SR packets for lip-sync
to rtpbin. Some senders don't update their SR packets correctly after sending a
BYE and then we break lip-sync. We prefer to let the jitterbuffers drain with
the current lip-sync instead.

When iterating the sources of a BYE packet, don't signal a reconsideration for
each of them but signal after we handled all sources.

Connect to the pad-removed signal of the ptdemux elements so that we remove the
ghostpads for them. Fixes cleanup when going to NULL as well as when releasing
the sinkpads.

Fixes #561752

Remove all individual SDES properties and use one sdes property that takes a
GstStructure instead. This will allow us to add more custom stuff to the SDES
messages later.

Remove all individual SDES properties and use one sdes property that takes a
GstStructure instead. This will allow us to add more custom stuff to the SDES
messages later.

Add support for sending buffer-lists.
Add unit test for testing that the buffer-list passed through rtpbin.

fixes #585839

Fixes #584165

Bring the network address in netowkr byte order to the host order.

Since the port in GstNetAddress is in network order we might need to byteswap it
before adding it to the source statistics.

Add action signal to clear an SSRC in the ssrc demuxer.
Add signal to notify of removed ssrc.

See #554839

Since we keep a reference to our ghostpads, we can use them to track sessions.
This avoid us having to mess with the target of the ghostpad.

Allow getting the request pads multiple times, just return the previously
created pads.

Add the RTP and RTCP sender addresses in the stats structure.

Reuse the RTPSource object property instead of duplicating code.

Add the beginnings of an rtpbin unit test
Add some more stuff to .gitignore

Set the state on newly added elements to the state of the parent.
Add some debug info and do some cleanups

See #561752

Keep the signal handlers so they can be disconnected at release time

See #561752