The cheese snap fails to connect to the webcam

[hellsworth]

The cheese snap fails to connect to the webcam.

I have cheese from --candidate (Rev 22) installed on my lunar system with a webcam. When I run it, I see the light on my camera turn on but then off, with the following error message:

$ snap run cheese

(cheese:1724098): cheese-WARNING **: 11:39:44.702: Can't find vp8enc preset: "Profile Realtime", using alternate preset: "Cheese Realtime". If you see this, make a bug report!

(cheese:1724098): GStreamer-WARNING **: 11:39:44.702: gst_value_deserialize_g_value_array: unimplemented

(cheese:1724098): GStreamer-WARNING **: 11:39:44.702: gst_value_deserialize_g_value_array: unimplemented

(cheese:1724098): GStreamer-WARNING **: 11:39:44.702: gst_value_deserialize_g_value_array: unimplemented

(cheese:1724098): GStreamer-WARNING **: 11:39:44.713: gst_value_deserialize_g_value_array: unimplemented

(cheese:1724098): GStreamer-WARNING **: 11:39:44.713: gst_value_deserialize_g_value_array: unimplemented

(cheese:1724098): GStreamer-WARNING **: 11:39:44.713: gst_value_deserialize_g_value_array: unimplemented

(cheese:1724098): cheese-WARNING **: 11:39:46.651: Internal data stream error.: ../libs/gst/base/gstbasesrc.c(3127): gst_base_src_loop (): /GstCameraBin:camerabin/GstWrapperCameraBinSrc:camera_source/GstBin:bin18/GstV4l2Src:v4l2src1:
streaming stopped, reason error (-5)

[jbicha]

I think the Cheese snap became much flakier after the switch to core22. When I tested before, it worked sometimes.

Ubuntu 22.04 LTS doesn't have the newest 1.20 series of the gstreamer packages, but I don't know if there are fixes in the new version.

[kenvandine]

I think this is somewhat dependent on the host. It works fine for me, but it also worked fine for me when Heather reported the issue.

[sergio-costas]

I did some tests. First, I had to add cmake and libgnome-desktop-3-dev to be able to create the 44.1 snap, and it worked fine but saw that vp8enc error, so I added libvpx7, and then it began to fail (and also the errors remained). Removing the library wasn't enough to fix it, I had to uninstall the snap and install it again. Then it worked fine.

Maybe compiling inside the last version of GST would fix all of this...