`wpctl status` shows the description of device nodes. Therefore, the
videotestsrc and audiotestsrc are listed as "(null)" if the example
configuration of the sources is used.
Set the description in the example for how to configure the audiotestsrc
and the videotestsrc.
As part of this, in alsa-udev.c, certain structures and variables referred
to as "device" are renamed to "card". Otherwise, there is ambiguity, since
"device" can mean a udev device, an SPA device, a compress-offload device,
a PCM device etc.
Also, replace "card id" with "card number" to emphasize that these integers
are not actually SPA object IDs.
Prior to this commit, the man page for pipewire-pulse did not
make it clear that although pipewire-pulse is "integrated"
in a general sense with the pipewire system, it runs its own
pipewire process, that is, in some sense, independent. For
example, restarting the pipewire service does not restart
the pipewire-pulse service.
The aim of this commit is to improve people's understanding of the
relation between pipewire-pulse and pipewire in the most obvious
place where they would expect to find it.
We're missing the delay in samples plus all of the extra samples of
silence we use to restart the device. This is in the samplerate of
the device.
Convert this to the time domain of the graph before adding it to xrun.
The isinf function returns -1 for negative infinity on glibc, but
the standard guarantees no such behavior (e.g. in C++ it always
returns a bool, on musl libc it's a macro that expands to a bool
expression), saying just that it returns a non-zero value.
This was added in pulseaudio around 15 years ago, and was never
fixed; pipewire then got the code from it. However, we can portably
check against -INFINITY instead (from math.h, already included).
Ref 045c1d6
If the modifier for a format is not fixated yet, we will use vulkan to
fixate a modifier, update the parsed format, change the EnumFormats mask
and exit early. This triggers a new enum_params with EnumFormats and a
new set_param for Format.
This commit add helpers to create and to import a DmaBuf via the
external_dmabuf_info struct.
The import path is based on the image creation of wlroots and the create path is
inspired by the wlroots vulkan allocator MR.
vulkan_wait_idle waits until the device is idle and all referenced
objects can be destroyed.
vulkan_wait_fence waits until a fence is triggered by a finished
queueSubmit.
vulkan: wait on fence
This commit should just shuffle code around with no functional changes.
The goal is to ease development of simple vulkan nodes by providing
generic helpers.
The default period is based on the default rate and might be too small
when using high samplerates. Scale the rate with the samplerate and make
sure it's a power of 2 to avoid trouble.
Fixes#3444
Let the source write into a ringbuffer when there is data available.
We then read from the ringbuffer when scheduled and use a dll to keep
the delay constant. We can later make this a driver and use the rate
correction to tweak the timeouts instead of resampling.
See #3478
Round down the size and avail to the frame size to make sure we always
send aligned frames.
When we don't have the required size, set the buffer to 0 but still send
whatever we have in the ringbuffer or else it stays there until some
unknown time when it gets flushed out again with new data.
When we don't manage to emit the notify, still mark the object as
registered. Otherwise we might not emit the unregistered
notify later on.
This usually happens when a client connects and the notifies are
suppressed for all the objects in the graph. When they later disappear
we do want to emit the unregistered notify.
The tag param has a list of arbitrary key/value pairs. Like the Latency
param, it travels up and downstream. Mixers will append the info
dictionaries or do some more fancy merging.
The purpose is to transport arbirary metadata, out-of-band, through the
graph and it's used for stream metadata and other stream properties.
