This test needs an environment set up to load everything correctly,
running it directly results in a segfault. Let's make sure we assert on
a NULL loop to make this look slightly more planned.
Use the port_set_mix_info event to get the id of the peer port for the
mixer input.
When asked for the buffer of one of those peer ports, we can get it from
the mixer input buffers.
Fixes#1471
Add a new client-node port_set_mix_info event. bump the interface
version to 4 and the event version to 1.
The event is used to send information about the peer object to the
port mixer. This can be used to track what buffers belong to what
peer.
Reevaluate the graph again after we potentially suspend because of a
rate change because links might become unprepared and need to be
prepared again before the node becomes active.
We call setup_alsa_ucm_endpoint() before the
setup_alsa_fallback_endpoint(), but this function always returns
-ENOTSUP. Add a FIXME comment to make this more obvious.
spa_strstartswith() is more immediately understandable.
Coccinelle spatch file:
@@
expression E1, E2;
@@
- strstr(E1, E2) != E1
+ !spa_strstartswith(E1, E2)
@@
expression E1, E2;
@@
- strstr(E1, E2) == E1
+ spa_strstartswith(E1, E2)
Applied to the tree except for alsa/acp/compat.h because it looks like
that header is still mostly as-is from PA.
Add a default.clock.allowed-rates property that lists the possible
rates for the graph.
Add node.rate and node.lock-rate properties to suggest a graph rate
and lock the rate.
Collect the largest clock rate from the nodes and if it is allowed,
try to configure it as the graph rate. Only switch rates when the
driver is IDLE or suspended or when we force a rate.
No alternative samplerates are specified because we first need to
work around a common driver bug (cards with 1 cristal need the same
rate for capture as playback) for this to work.
Rework the quantum and max_quantum handling. Work directly with the
latency fractions and calculate the final quantum size until we know
the samplerate.
The graph will not switch quantums when there is an active node
with the node.lock-quantum property set to true.
It can be used to stop certain jack clients from crashing when the
quantum changes.
libfreeaptx is a fork of libopenaptx prior to the dubious licensing
situation was introduced to the library.
As it's fully API compatible, let's use that instead for those who
want to use aptX support.
The library source is available at https://github.com/iamthehorker/libfreeaptx
Hard rate changes (the default now) makes the graph suspend so that the
driver reopens the device with the new sample rate if possible. This
causes a glitch.
Soft rate changes works as before and just changes the clock rate of
the position area, which makes everything resample things to the new
rate without a glitch.
Sample rate changes can currently still only be triggered by
configuring the settings metadata clock.force-rate
We don't need to follow nodes that we already visited or that are
inactive so skip them early.
Always try to prepare the link otherwise, not only for passive links
because non-passive links might also be paused because of a suspended
driver.
