Release the transport if it went idle, ensuring that the fd is closed,
and add safeguards we won't double-acquire/release it.
This can occur if the device pauses the playback. The transport may also
activate again later on, and in this case we need to reacquire a new fd.
Not closing the old fd causes problems in this case.
However, apparently the BlueZ Release() call fails if the transport is
idle. We just ignore the error and downgrade the error message; it might
not be safe to not call Release() because the idle property update is
async.
Make a2dp clock advance at the correct rate.
Revert back to accumulating to a single buffer before sending it out.
What it did previously seemed hard to get to work properly with e.g.
aptx which produces block of varying sizes on decoding.
Implement monitor volumes in the merger. There are two volumes,
the channel volume and the monitor volume. The monitor volume
is always applied.
By default the monitor volume will now follow the main volume of
the node. This can be disabled with a monitor.channel-volumes
property.
See #674
default-route wants to have SPA_PARAM_ROUTE_devices and
card.profile.devices before it will restore routes. Add these
also for bluez5-devices.
Fixes restoring volumes on Bluetooth profile change.
BlueZ may connect transports long after DEVICE_PROFILE_TRANSPORT_SEC has
passed on already existing devices. When this occurs, the bluez5
pipewire device should notify that the profile enumeration has changed.
Ignore these events during A2DP codec switch, and handle any changes
when the switch completes.
We would like to have BT device codec capability checks beyond what's
possible based on A2DP caps.
Split SBC-XQ to a separate codec, and enable it in the device-dependent
check (although currently it just uses the config option).
For debugging, it may be useful to disable some of the codecs. Enable
configuring this in config file, to make it more convenient for users,
who may not know how to recompile/install pipewire.
Disable automatic port configuration in acp and move the logic
to the session manager.
Implement initial port selection and restore on profile activation.
Implement route switch when unavailable
Implement port settings save.
Only poll events and set_param can cause a param changed events.
Keep track of all the changes in the param user data and at the
end of the poll/set_param emit one notification for all changed
params.
