Includes
- Implementation in src/outputs/airplays2, type OUTPUT_TYPE_AIRPLAY
- Homekit pairing, both normal (with PIN) and transient
- New session startup sequence, incl GET /info, SETPEERS and 2 x SETUP
- No more OPTIONS and ANNOUNCE
- Use POST /feedback for keepalive instead of SET_PARAMETERS
- Sequence dispatching instead of callback chains
- Continue despite "Bad request" to SET_PARAMETER (volume)
- Opening of event connection to receiver (reverse rtsp connection)
Still to be done
- Password authentication
- Handling of events
With this commit auto reconnection per default will only be done for ATV4s and
HomePods. Reconnection is not always desirable, for instance if the device cuts
the connection because it is busy with something else, ref. issue #934.
The commit also adds an option to override auto reconnection, thus either
enabling it for other devices or disabling it for affected devices.
Before, if a user never verified the device, we would have a device->session
even though the device was not streaming and was in a failed state.
This solution should be more clean and in line with the overall principle that
we only have a session when communicating with the device.
Also includes a bit of code refactoring.
outputs_authorize() has two issues, one that the caller can't specify device
(problem if there are two devices waiting for verification), the other that it
didn't offer a standard callback, so difficult to catch failure/success.
Moves speaker selection, volume handling and startup to outputs.c, plus adds
the ability to "resurrect" a speaker that disconnects.
The purpose of moving the code is to concentrate device handling in one place.
Also changes how we deal with speaker selection. The player will now generally
not alter a user selection, even if the device fails. The purpose of this is to
maintain selection both if the device briefly fails, and if the user switches
off the device (we stop playback) and later turns it on + starts new playback.
Instead of using OPTIONS we use SET_PARAMETER with progress metadata to avoid
disconnects from Apple TVs, Homepods and possibly also Airport Expresses.
Fixes bugs which were due to incorrect handling of unsigned integer wrap-around:
1. Calling packet_resend() with seqnum + len greater than UINT16_MAX => infinite loop
2. Calling rtp_packet_get() with session->seqnum - seqnum greater than pktbuf_next => wrong packet
In the output implementations playback_stop() was somewhat redundant,
since device_stop() does the same.
The timer should make sure that we always close outputs (previously
they were in some cases kept open).
The commit also includes some renaming.
Player now stops 10 secs after stop command and 10 mins after pause. At
that time the outputs have probably cut the connection themselves, but
that might be ok (needs testing).
