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pipewire: if no devices seen in "preferred" init, try a different backend.

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We're seeing people with legit PipeWire installs that don't export any
devices, that are also running a (not emulated) PulseAudio install that
works.

This solution might still get tweaked some more, but it seems to be working
so far.
This commit is contained in:
Ryan C. Gordon 2024-05-28 22:06:43 -04:00
parent fafc9f642a
commit aeb223fc23
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GPG Key ID: FA148B892AB48044
1 changed files with 22 additions and 1 deletions
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23
src/audio/pipewire/SDL_pipewire.c
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@ -1326,7 +1326,28 @@ static SDL_bool PipewireInitialize(SDL_AudioDriverImpl *impl, SDL_bool check_pre
static SDL_bool PIPEWIRE_PREFERRED_Init(SDL_AudioDriverImpl *impl)
{
return PipewireInitialize(impl, SDL_TRUE);
if (!PipewireInitialize(impl, SDL_TRUE)) {
return SDL_FALSE;
}
// run device detection but don't add any devices to SDL; we're just waiting to see if PipeWire sees any devices. If not, fall back to the next backend.
PIPEWIRE_pw_thread_loop_lock(hotplug_loop);
// Wait until the initial registry enumeration is complete
if (!hotplug_init_complete) {
PIPEWIRE_pw_thread_loop_wait(hotplug_loop);
}
const int no_devices = spa_list_is_empty(&hotplug_io_list);
PIPEWIRE_pw_thread_loop_unlock(hotplug_loop);
if (no_devices) {
PIPEWIRE_Deinitialize();
return SDL_FALSE;
}
return SDL_TRUE; // this will move on to PIPEWIRE_DetectDevices and reuse hotplug_io_list.
}
static SDL_bool PIPEWIRE_Init(SDL_AudioDriverImpl *impl)