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Instead of PulseAudio, this patch suits PipeWire-ALSA.
This patch keeps everything else (video, v4l2loopback, adb/wifi, crop/flip, …) untouched.
The key idea: PipeWire’s pipewire-alsa plug-in exposes the same ALSA device names that PulseAudio used to, so we can do four things:
First, Skip every pactl call (no Pulse sinks, no echo-cancel module, no default-source switching). (line 147)
Second, Replace pulsesink device=ipwebcam with alsasink device=ipwebcam. (line 604)
Third, Create the only object we still need: a PipeWire null-sink called “ipwebcam” so that the phone’s audio appears as a normal microphone you can select in any PipeWire-aware application (or in pavucontrol-qt / helvum). (line 550)
Foutth, Do the whole thing with pw-cli / pw-link instead of pactl.(line 638,
Notice, `pw-node: command not found`, maybe it's deprecated at my version of kubuntu. I can't reach the package on my computer.
The script, `run-videochat-origin.sh`, is generated by your script,`install-videochat.sh`, whose execution. And you may compare it under the same environment.
Here is my enviroment brief description.
Static hostname: urbaner-laptop
Icon name: computer-laptop
Chassis: laptop 💻
Machine ID: a9e10aa601454188abdcbd97580c5e2f
Boot ID: 989b9d5983a84cdf8291c86581b9ba7d
Operating System: Ubuntu 25.04
Kernel: Linux 6.14.0-37-generic
Architecture: x86-64
Hardware Vendor: Framework
Hardware Model: Laptop _13th Gen Intel Core_
Firmware Version: 03.04
Firmware Date: Wed 2023-05-24
Firmware Age: 2y 6month 3w 3d
This was referenced Dec 16, 2025
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Replaces PulseAudio calls (pactl) with PipeWire native tools (pw-cli, pw-dump).
This is a model code generated by duck.ai, gpt 4o-mini, but it aims at my same goal of switching to Pipewire.
Audio pipeline: souphttpsrc → alsasink device=ipwebcam; the PipeWire-alsa plug-in routes the stream into a null-sink named “ipwebcam” whose monitor port appears as a normal microphone in any PipeWire-aware application (pavucontrol-qt, Helvum, OBS, Zoom, etc.).
Video path, v4l2loopback, ADB/Wi-Fi, crop/flip, FPS, … are unchanged.
Removes the old “only video on PipeWire” guard so audio+video works on modern Ubuntu/Kubuntu out-of-the-box.
Tested on:
Ubuntu 25.04 (PipeWire 1.0.5, wireplumber 0.5) – video OK, audio visible as “IP Webcam” source.
Known gaps (future PRs):
Echo-cancel module not loaded (most apps do AEC internally).
pw-node command removed – used pw-dump | jq instead; requires jq.