Don't blindly clear the format when EnumFormat changes. This will
just stop the node without renegotiating.
We should probably find a new best format, check if it changed and
then Stop/configure/Resume the follower with the new format.
This fixes a stall when a node is running and you change the allowed
codecs.
vulkan_headers was a workaround for distributions providing pkg-config information
without the headers. Replacing it with a more conventional have_vulkan
and assert header availability if the option vulkan is enabled.
Use bigger fallback maximum MTU, when kernel fails to tell us, which
shouldn't happen but apparently can. We choose the packet size based on
incoming data, so these values aren't usually needed so we can just bump
them.
Also report errors as necessary.
When checking that a card has all of its PCM devices available, ignore
any specific device with the ACP_IGNORE udev environment variable. This
mirrors how we ignore whole cards, but specifically allows non-PipeWire
software to own specific PCM devices.
Note that this does not actually stop PipeWire from using those
subdevices right now, we assume UCM configs take care of that. This
should probably be implemented later to ensure PipeWire always stays
away from them, but for now this fixes the issue where it refuses to
probe the entire card.
Fixes: #3570
Signed-off-by: Hector Martin <marcan@marcan.st>
Don't try to allocate each time port buffers are set but only once
before we start procesing.
Also allocate enough temp buffers are there are ports. This saves us
quite a bit of memory in the normal case.
All linked PCMs prepare together. If we prepare the secondaries, that
action clobbers the write pointer of every PCM every time, which then
causes playback to fail to start due to lack of data.
Signed-off-by: Hector Martin <marcan@marcan.st>
The user may not know which is the active PHC index of a bonded
interface. We can now specify the interface name instead of a device
as the clock.interface property and query the interface about the
active PHC index.
When the PCM is stopped, don't check for early wakeup because if we
are early, we will never be on time in the next iteration either because the
PCM is stopped and doesn't advance.
Also don't try to align when stopped.
See #3565
Only schedule nodes together when there is just 1 capture and 1 playback
device. Devices might be mutually exclusive or require special setup
that would break otherwise.
See #3556
Add an option to automatically use snd_pcm_link when the follower clock
is matching the driver. Only set this to true in pro-audio and when
nodes are scheduled together.
See #3556
When we are operating in passthrough, let the Start command pass through
to the follower in all cases. Only do the negotiate/buffers when not in
passthrough.
This fixes a case where the buffers are cleared on the alsa node and it
Pauses but then never resumes in a Start because the node is already
started. The real problem is probably somewhere else (in PipeWire) but
for now this will improve things in passthrough.
We only start the ALSA pcm after we get our first buffer.
We still need to do the sync through (and get the number of prefilled
samples) to make sure we set our new timeout and don't keep on waking
up quickly while the graph fetches the first buffer.
