There is a use case where you may want to use audioconvert with
both input & output sides configured in dsp mode, for altering
the stream volume. When it is configured like that, the
IS_MONITOR_PORT macro wrongly thinks that all output ports except
the first one are monitor ports, originating in the merger instead
of the splitter.
This change fixes that and it also completely disables exposing
monitor ports, even if they are enabled, when both sides are in
dsp mode (fmt_input_port_info() also uses the same macro to check
if the monitor ports are to be exposed)
Monitor the device reservation objects and mark the device available.
Don't select nodes from devices that are not available.
Acquire the device reservation when a device starts.
Release the device reservation when we suspend the device again.
JACK can handle 2 buffers at most, make the default buffer allocator
allocate 2 buffers when no params are given.
Prefer 2 buffers, it allows some form of async fill/consume
Don't unlink the mix->link when freeing, it is only linked when
in the free pool.
Protect against invalid number of buffers that could corrupt our
state.
enum_param should return -ENOENT when the param is not known.
When negotiating buffers handle -ENOENT. This means the port does
not know about the property and we should assume anything is fine
so just use the filter from the first port.
Use time in seconds as event timestamp.
Apply tempo from the new events, keep track of elapsed time and
time since tempo change to get the right time.
Skip metadata midi in pw-cat.
When we just picked a buffer from the queue and it is now empty,
call the process method to fill up the queue again or else we
won't have a buffer for the next wakeup.
When we finished processing the history it might be possible that we
need to skip some samples from the input. Implement this by adding
a start offset for the samples in the buffer.
