Make a new DRAINED status.
Place the DRAINED status on an input IO when a stream is out of
buffers and draining.
All nodes that don't have HAVE_DATA on the input io need to copy
it to the output io and return the status. This makes sure the
DRAINED is forwarded and nodes return DRAINED from _process()
DRAINED on the resampler flushes out the last queued samples and then
forwards the DRAINED in the next iteration.
Emit a new drained signal from the context when a node returns
DRAINED. Use this to trigger the drained signal in the stream.
Always take the state of the builder to get the newly filtered
object, even in the case there is no filter.
Handle the case where we can't copy the pod in the case of
a NULL filter by reverting the state of the builder.
Rework the function a bit to make it possible to pass a NULL
result (to calculate the required size, for example)
Fixes#226
The dataType parameter is a bitmask of allowed data types for the
buffer memory. Make the mask by or-ing all (1 << enum spa_data_type)
you accept/produce.
The this field can be used by apps who keep a copy of the
spa_param_info. They can use it, for example, to keep a counter
with the amount of changes since last processed.
The choice array might have excess elements when the type has been
changed, for example by fixation. This is not a problem and the
excess elements should simply be ignored.
Using the short name of a type without the base part is common enough
that a common utility method is warranted.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Make channel layout definitions a little more useful. We can now
assign them to a layout_info struct or in the raw_info.
Make some default channel layouts for use in pw-cat
Add Profiler object and fields.
Add profiler extension API. It notifies Profiler objects with
real-time performance data.
Add module that implements the profiler extension.
Add pw-profiler tool that binds to the profiler API and dumps the
data into a log file, gnuplot files, a html page and a script to
generate svg graphs. This is almost the same as what JACK2
JackEngineProfiling does.
So that we can check for negative value.
Also don't signal incomplete graph when we signaled more than
expected, this can happen when we add new nodes in the current
cycle and then triggered the driver.
