pipewire/spa
Alper Nebi Yasak 507ec0b39a alsa-ucm: Set up hardware volumes again on duplicate port additions
While initializing ALSA cards with UCM, we call pa_alsa_ucm_add_port()
for each UCM device for each UCM verb. This checks if a port has been
already added by name and skips port initialization if it is already
done. Different UCM verbs can have devices with the same name, which
means their port names end up being the same. So, this port creation
step currently is only done for one UCM verb for both UCM devices.

Volume control setup is also part of this process. The UCM devices only
know about the volume mixer information from the UCM verb that they are
defined in, so the volume control setup is done for one UCM verb at a
time. Skipping this setup when a same-named port exists means only the
profiles belonging to the first initialized UCM verb have working
hardware volume control.

Move the volume control setup out of the port initialization block so
that we try to do it every time, therefore for every UCM verb. However,
check that we don't run it twice for the same UCM verb for a port.

In theory, the PlaybackVolume etc. value can be different per-verb
for the same device, so we can't simplify this code to a single volume
setup per port.

Link: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/840
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2024-12-07 18:32:48 +00:00
..
examples Port videotestsrc to LoopUtils 2024-07-01 15:28:14 +00:00
include spa: fix spa_api_method_null macro NULL checks 2024-12-07 18:30:25 +00:00
include-private/spa-private spa: move dbus helpers out of bluez plugin 2024-02-05 13:03:20 +00:00
lib spa: remove some old includes 2024-11-26 13:30:58 +01:00
plugins alsa-ucm: Set up hardware volumes again on duplicate port additions 2024-12-07 18:32:48 +00:00
tests Add GNU/Hurd support 2023-09-24 15:11:52 +00:00
tools spa: add spa_json_object_next 2024-09-16 09:50:36 +02:00
meson.build spa: compile all function into libspa.so 2024-11-26 11:58:51 +01:00