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android: added ip webcam and follow ups

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Marten B. Kante
2023-11-11 23:35:27 +01:00
parent e081dbb0a3
commit 48307410ce
4 changed files with 80 additions and 4 deletions
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wiki/linux/ffmpeg.md
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@@ -63,3 +63,20 @@ Note that the bitrate for videos is split amongst a bitrate for video and a
bitrate for audio.
The target bitrate has to be equal to or greater than the sum of both video
bitrate and audio bitrate.
### Create a Virtual Camera Using an IP Video Stream
The following section will create a virtual [webcam](/wiki/webcams.md) from an IP video stream like
the one provided by [IP Webcam](/wiki/android/ip_webcam.md) [Android](/wiki/android.md) app.
For this a free [V4L2](/wiki/linux/v4l2.md) video device will be needed.
To information on how to create it navigate to the V4L2 entry and its sections on
[permanent](/wiki/linux/v4l2.md#create-permanent-v4l2-devices) and
[temporary creation of V4L2 video devices](/wiki/linux/v4l2.md#create-temporary-v4l2-devices).
The following command will create a video device using the pixel format planar YUV 4:2:0.
In this example it is assumed that the IP link is `http://192.168.178.66:8080/videofeed` and the
V4L2 video device that is not used but exists is `/dev/video8`.
If any of those differs on a given system adjustments are needed.
```sh
ffmpeg -i http://192.168.178.66:8080/videofeed -f v4l2 -pix_fmt yuv420p /dev/video8
```