Autoconnect request for webrtsp-camera-streamer

store-requests
1

I would like to ask add autoconnect to webrtsp-camera-streamer snap for following plugs:

  • camera
  • media-control
  • opengl

Them required to get access to camera attached to CSI-2 interface on Raspberry PI devices and do hardware encoding with h264 codec.

2

opengl should be auto-connected automatically.

+1 for auto-connect of camera given the primary use-case of this snap. Regarding media-control could you please provide some more information on why this is required? Thanks.

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3

Regarding media-control could you please provide some more information on why this is required?

tbh, I don’t know. GStreamer pipeline just didn’t work without it when I did testing. It’s highly possible the reason is v4l2h264enc GStreamer element (i.e. it needs access to V4L2 API). I’m going to check one more time if it’s really required. Thanks!

4

yes, it’s not working without media-control. I see following in logs:

CameraStreamer[2117]: [0:03:17.123778447] [2117]  INFO Camera camera_manager.cpp:284 libcamera v0.2.0+120-eb00c13d
CameraStreamer[2117]: [0:03:17.124590888] [2146] ERROR MediaDevice media_device.cpp:483 /dev/media2[]: Failed to open media device at /dev/media2: Operation not permitted
CameraStreamer[2117]: [0:03:17.124720210] [2146]  INFO DeviceEnumerator device_enumerator.cpp:224 Unable to populate media device /dev/media2 (Operation not permitted), skipping
CameraStreamer[2117]: [0:03:17.124826042] [2146] ERROR MediaDevice media_device.cpp:483 /dev/media0[]: Failed to open media device at /dev/media0: Operation not permitted
CameraStreamer[2117]: [0:03:17.124865573] [2146]  INFO DeviceEnumerator device_enumerator.cpp:224 Unable to populate media device /dev/media0 (Operation not permitted), skipping
CameraStreamer[2117]: [0:03:17.124935781] [2146] ERROR MediaDevice media_device.cpp:483 /dev/media3[]: Failed to open media device at /dev/media3: Operation not permitted
CameraStreamer[2117]: [0:03:17.124978697] [2146]  INFO DeviceEnumerator device_enumerator.cpp:224 Unable to populate media device /dev/media3 (Operation not permitted), skipping
CameraStreamer[2117]: [0:03:17.125048905] [2146] ERROR MediaDevice media_device.cpp:483 /dev/media1[]: Failed to open media device at /dev/media1: Operation not permitted
CameraStreamer[2117]: [0:03:17.125086248] [2146]  INFO DeviceEnumerator device_enumerator.cpp:224 Unable to populate media device /dev/media1 (Operation not permitted), skipping
CameraStreamer[2117]: 0:00:03.715166148  2117   0x557e521b00 WARN            libcamerasrc gstlibcamerasrc.cpp:389:gst_libcamera_src_open:<libcamerasrc0> error: Could not find any supported camera on this system.
CameraStreamer[2117]: 0:00:03.715224064  2117   0x557e521b00 WARN            libcamerasrc gstlibcamerasrc.cpp:389:gst_libcamera_src_open:<libcamerasrc0> error: libcamera::CameraMananger::cameras() is empty

so it looks like media-control is mandatory for libcamera…

5

Thanks for providing the extra info - yes I agree, it would appear that media-control is definitely needed as well.

+1 for auto-connect and use-of media-control for webrtsp-camera-streamer.

1 Like
6

+1 also from me for auto-connect camera and media-control interfaces as their use seems to be required and expected according to the snap name and functionality.

Thanks

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7

+1 from my side on auto-connect of media-control and camera interfaces to webrtsp-camera-streamer snap

thanks

1 Like
8

Can anybody please clarify, did request accepted or not? Thanks in advance!

9

+3 votes for, 0 votes against, granting auto-connect of interfaces camera and media-control to snap webrtsp-camera-streamer. This is now live.

1 Like