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simplify rpi / microphone instructions #3650

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Aug 13, 2024
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simplify rpi / microphone instructions #3650

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11 changes: 6 additions & 5 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -544,19 +544,20 @@ default:CARD=U0x46d0x809
Default Audio Device
```

Find the audio card of the microfone and take note of its name, for instance `default:CARD=U0x46d0x809`. Then use GStreamer inside `runOnReady` to read the video stream, add audio and publish the new stream to another path:
Find the audio card of the microfone and take note of its name, for instance `default:CARD=U0x46d0x809`. Then create a new path that takes the video stream from the camera and audio from the microphone:

```yml
paths:
cam:
source: rpiCamera
runOnReady: >

cam_with_audio:
runOnInit: >
gst-launch-1.0
rtspclientsink name=s location=rtsp://localhost:$RTSP_PORT/cam_with_audio
rtspsrc location=rtsp://127.0.0.1:$RTSP_PORT/$MTX_PATH latency=0 ! rtph264depay ! s.
rtspsrc location=rtsp://127.0.0.1:$RTSP_PORT/cam latency=0 ! rtph264depay ! s.
alsasrc device=default:CARD=U0x46d0x809 ! opusenc bitrate=16000 ! s.
runOnReadyRestart: yes
cam_with_audio:
runOnInitRestart: yes
```

The resulting stream will be available in path `/cam_with_audio`.
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