Sound in PipeWire

[b4zz4]

OS: Arch Linux

Great program. I was looking for a program that reproduces lists in gnu/linux but does not work the sound within OBS. (alsa, pulse, openAL they listen, but it doesn't work for the PipeWire transition)

Make with:

  cmake -B build \
  -DCMAKE_BUILD_TYPE=None \
  -DCMAKE_INSTALL_PREFIX='/usr' \
  -DCMAKE_INSTALL_LIBDIR=lib \
  -DLINUX_PORTABLE=OFF 

But don't work pipewire...

[univrsal]

Can you post a full obs log? Also you might need to restart the playback after changing to pipewire.

[b4zz4]

Yeah, reboot many times. The video (OBS) appears in Pulse Audio and don't play or recorded in the transmission. Not even the level changes. Player windows don't allowed to interact.

https://github.com/univrsal/obs-mpv/assets/643833/92c9c119-9544-4d9a-8d1f-89ca511736d4

[univrsal]

The interaction not working is an issue with libmpv, nothing I can do about it. I also still need an obs log. Also I meant restarting the playback, not rebooting, like this:

https://github.com/univrsal/obs-mpv/assets/8353672/a62df9cc-6ed5-4843-b07e-47be0e3a4b05

[b4zz4]

But the audio capture is done using the Desktop audio?

[univrsal]

It's the same when I use the builtin source:

https://github.com/univrsal/obs-mpv/assets/8353672/2b28451b-7582-429f-b7b5-fba7bc01a3dc

[b4zz4]

Sure, that with pipewire isn't working on me. It's mute.

[univrsal]

What do the source properties look like after loading the file? Can you select a different audio track in there?

[b4zz4]

It seems deactivated in the "interact" but in the source it is chosen.

Maybe it's a mistake in my compilation that parameters use in cmake

[univrsal]

does it happen with all video files? Do you have one that you could upload?

[b4zz4]

I did tests with many, it seems he's trying to connect with jack only …

info: [obs-mpv] log:  (+) Video --vid=1 (*) (h264 1024x1280 25.000fps)
info: [obs-mpv] log:  (+) Audio --aid=1 (*) (aac 2ch 44100Hz)
info: [obs-mpv] log: File tags:
info: [obs-mpv] log:  Date: 2023/10/13 17:01:32
error: [obs-mpv] log: cannot open server
error: [obs-mpv] log: Failed to initialize audio driver 'jack'
error: [obs-mpv] log: Could not open/initialize audio device -> no sound.
info: [obs-mpv] log: Audio: no audio
info: [obs-mpv] log: VO: [libmpv] 1024x1280 yuv420p
info: [obs-mpv] log: Track switched:
info: [obs-mpv] log:  (+) Video --vid=1 (*) (h264 1024x1280 25.000fps)
info: [obs-mpv] log:      Audio --aid=1 (*) (aac 2ch 44100Hz)

[univrsal]

Try changing these two lines from "jack" to "pipewire" https://github.com/univrsal/obs-mpv/blob/master/src/mpv-backend.c#L420 https://github.com/univrsal/obs-mpv/blob/master/src/mpv-backend.c#L425

[b4zz4]

It is heard by the speakers but not within OBS

[univrsal]

No clue what the issue is then