When the timing_port is 0, just don't send out an initial timing packet.
When we receive a timing packet, reply to the same address/port that the
timing packet was sent from.
Fixes#3133
Add check for running the the loop context and thread.
Add checks in filter and stream to avoid doing things when not run from
the context main-loop because this can crash things when doing IPC from
concurrent threads.
Rework the runnable state calculation. It works in 2 steps now:
1. Collect all nodes linked to a driver in some way. Mark nodes that
are reachable with a non-passive link as runnable.
2, Go through all runnable nodes and set all linked nodes to the
runnable state as well, up to the driver.
Step 2 is new. Previously if there was just one runnable node, *all*
nodes would be set to runnable. With the addition of step 2, some nodes
might remain idle when they are not used.
This has the effect that virtual sinks without inputs stay idle when
the driver is otherwise running. Grouped nodes (like the RTP session)
will now also only run the linked nodes.
-To select between non-native(via control channel) and native modes(via audio
adapter ). The control port will be opened only in the non-native mode.
-To select different sample and sample step sizes. The Legacy non-native
mode also uses these params now.
-To provide the alsa device.
Use the ISO IO helpers to get synchronized BAP output, and rate match to
the ISO schedule.
The rate matching is necessary, since the driver may be ticking at a
corrected rate, different from the ISO interval rate.
Add factored out helper for ISO socket I/O.
ISO sockets need synchronization of writes and audio position for
different stream fds in the same isochronous group, and it's easier to
separate out the part that coordinates it.
Avoiding unnecessary release + reacquire when nodes restart makes sense
for all transport types. Do timed releases for all transport types, not
only SCO.
This reverts commit 2bfe772bb4.
This does not take into account nodes recursively becomming runnable and
so does not set the runnable state on all nodes correctly, like for
combine-stream.
Revert for now, it probably requires a new algorithm to make this work.
See #3128
If you set node.force-rate=0, the rate will be forced to the node.rate
denominator.
This makes it possible to autiomatically make the graph switch to the
native rate of the stream by setting this as the default property on
streams.
See #3026
There is no point in trying to restore a node to the default rate when
it's not going to run.
This avoids loops when rate switching from one forced rate to another.
