The spa_loop_add_source() call for udev event monitoring which uses
impl_on_fd_events() is done from start_monitor() which also unconditionally
calls start_inotify().
Since start_monitor() already always calls start_inotify() there is no
scenario where start_inotify() has not been called yet when
impl_on_fd_events() gets called. So the start_inotify() call in
impl_on_fd_events() is redundant, remove it.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
(cherry picked from commit ab245947e5)
Now that start_monitor() (which calls start_inotify()) is called before
enum_devices() it no longer is necessary to call start_watching_device()
for devices which have been enumerated before start_inotify() gets
called (since there will not be any such devices anymore).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
(cherry picked from commit 46f89d8009)
This fixes 2 races wrt probing v4l2 devices:
1. Before this change there was a window where a new udev device can get
added between the udev_enumerate_scan_devices() call in enum_devices() and
the udev_monitor_enable_receiving(this->umonitor); call. If this window was
hit then enum_devices() would not see the device and no udev-event for it
would be received either causing the device to not be seen.
Enabling udev event monitoring before calling udev_enumerate_scan_devices()
fixes this. Note that the code is already prepared to deal with getting
multiple add/change events for the same udev device, so hitting the new
race window where PipeWire may receive both an add- or change-event and
also sees + probes the device from enum_devices() is not a problem.
2. Before this change devices added by enum_devices() would not have
inotify monitoring activated right away because notify.fd = -1 at this
time turning start_watching_device() into a no-op.
These devices without inotify monitoring would then have their access
checked by process_device() calling check_access().
Then after all devices have been enumerated start_monitor() would call
start_inotify() which calls start_watching_device() for all devices added
by enum_devices(). This leaves a window where the ACL can change without
there being an inotify watch for it.
Calling start_monitor() before enum_devices() puts start_inotify()
notify before enum_devices() so that the add_device() calls done
by enum_devices() will now successfully call start_watching_device()
closing this window.
PipeWire is somewhat likely to not notify ACL changes because of this
because PipeWire is part of the systemd user default.target, where as
logind only starts applying the ACLs after GNOME has created the seat
for the GNOME session. So on first login we have PipeWire starting
and logind applying the ACLs at the same time, which allows for the ACL
change to hit the small race window where PipeWire is not monitoring
for ACL changes. Fixing this second race should hopefully resolve
issue #3960.
Closes: #3960
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
(cherry picked from commit 584168caab)
Previously both `impl_on_notify_events()` and `process_{device,card}()`
called `check_access()`. Avoid that by merging `ACTION_ADD` and
`ACTION_DISABLE` into a single `ACTION_CHANGE` and let `process_{device,card}()`
call `check_access()` and decide what to do.
(cherry picked from commit ad975c93ee)
Split up `process_{device,card}()` to have a separate function that does
the lookup based on the udev device, and only use that when there is
no available reference to the actual device/card object.
(cherry picked from commit 69f9e75458)
`IN_IGNORED` event is sent whenever the watch is removed,
which includes when the entity is deleted among other things,
so watch that instead of the more specific `IN_DELETE_SELF`.
(cherry picked from commit 04b8a0c215)
When we drop the first buffer to avoid timestamp problems, queue it
again in the driver or else we will not be able to dequeue is again
later and we will be running with a buffer less.
Claim that call waiting notifications are supported.
Required for some devices (e.g. Soundcore Motion 300),
as they stop sending commands if the reply to CCWA is not OK.
Use dynamic pod builder so that we can also build complex formats.
Make sure we zero the format before we parse it or else we end up with
potentially uninitialized values.
When ENUM_FRAMESIZES or VIDIOC_ENUM_FRAMEINTERVALS return EINVAL for the
first index, make a dummy result and continue with that. This will
trigger an intersect withe filter so that we end up with something valid
instead of nothing.
Handle 0 framerates without crashing.
See #4063
Some complex camera pipelines, like the IPU6 can involve many /dev/video#
nodes (32 in the IPU6 case) and the current size of 128 chars is not enough
to hold all /dev/video# nodes in this cases causing SPA_KEY_DEVICE_DEVIDS
to get truncated, which in turn breaks the filtering of V4L2 devices which
are used by a libcamera driven camera in wireplumber.
Fix this by increasing the size of devices_str[] to 256.
This fixes wireplumber adding a bunch of non-function V4L2 video sources,
e.g. before this "wpctl status" outputs the following video sources:
Video
├─ Devices:
...
├─ Sources:
│ 90. ov2740
│ * 115. ipu6 (V4L2)
...
│ 135. ipu6 (V4L2)
│
├─ Filters:
After this fix the output is:
Video
├─ Devices:
...
├─ Sources:
│ * 92. ov2740
│
├─ Filters:
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
We delay the audio a bit to keep packet intervals equal, which keeps
some data in buffers.
In theory the calculation keeps one buffer free, but it doesn't
explicitly keep "extra" buffer space so in theory might flush too late
and next process() might not have free buffers. However, as we encode
next packet right away this shouldn't really occur...
Try to keep one extra spare buffer free so that the flush time is
certainly early enough.
Libcamera formats are generally little-endian, matching DMA DRM
fourccs, while PW ones are big-endian. Thus we have to invert the
order.
Only RGB and BGR where tested, as these are the formats currently
supported by the software ISP. This fixes inverted red and blue in
Snapshot on the Librem5 and Pinephone (OG).
See also gstlibcamera-utils.cpp in libcamera.
This fixes an issue introduced in 771f71f622
where the quantum is forced and may break applications the specify their
own quantum.
Signed-off-by: Lukas Rusak <lorusak@gmail.com>
Debug and trace log messages are often written based on the stderr
logging, where code location is always visible.
journalctl does not show the code location without extra tricks,
which makes user-submitted debug logs from journal more cryptic.
Make journal log more similar to stderr logs by prepending the code
location and log level in the log message when the log topic
level is >= DEBUG.
A quite big number of UVC cameras - due to firmware or kernel driver
issues - have bad timestamps of the first frame, confusing clients
like pipewiresrc.
Drop the first frame, as this seems to be the most reliable workaround
for the time being.
Closes https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/3910
Use snd_ctl_card_info to set some more card properties such as the
alsa.id, alsa.mixer_name and alsa.components.
alsa.id is interesting because it is possible to use udev rules to set a
custom id, which is handy when you have two identical cards in the
system and want to assign unique ids to them.
See #3912
This does a couple of things: first, we implement revents demangling,
which seems to be required (although hw: devices work fine without it).
The second is to actually read the ctl events so we can tell when
elements we care about have changed, instead of reading everything and
trying to do a diff.
The latter is also required from a correctness perspective, as otherwise
the ctl might keep triggering wakeups while the fd is ready to be read.
Add a monitor.passthrough option. This will pass all latency information
directly between the port and its monitor ports.
This is interesting when the adapter (and audioconvert) is used with a
null-audio-sink that simply forwards the data to a real sink/souce. In
that case, we want the sink/source latency to be passed unmodified.
Set the monitor.passthrough on the pulseaudio null-sink because
a passthrough virtual sink is the most likely use case for this.
Add some monitor.passthrough default config where it makes sense.
Fixes#3888
Currently the HDMI output paths have jack mixers named "HDMI/DP" and
with append-pcm-to-name=true. However, most of the SOC audio drivers
are just named "HDMI" and don't add the ",pcm=N". Add these alternate
jack names to the HDMI audio path files so that jack detection will work
on these SOCs.
Keep track of the valid ports and don't emit port info for
invalid ports. When a listener is added while the ports are being
created, it is possible that the ports are still NULL or invalid.
