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Bug 685989 - v4l2src: Failed to get value for control 9963779 on device '/dev/video1'
v4l2src: Failed to get value for control 9963779 on device '/dev/video1'
Status: RESOLVED INCOMPLETE
Product: GStreamer
Classification: Platform
Component: gst-plugins-good
1.x
Other Linux
: Normal normal
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2012-10-11 17:00 UTC by Debarshi Ray
Modified: 2013-06-06 12:21 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
Logs with GST_DEBUG=v4l2*:9 (684.82 KB, application/octet-stream)
2012-10-11 17:00 UTC, Debarshi Ray 		Details

Description Debarshi Ray 2012-10-11 17:00:41 UTC 
Created attachment 226283 [details]
Logs with GST_DEBUG=v4l2*:9

Pipeline:
gst-launch-1.0 v4l2src device=/dev/video1 ! videoconvert ! videoscale ! autovideosink

Warning:
v4l2src0: Failed to get value for control 9963779 on device '/dev/video1'.

Version:
gstreamer1-plugins-good-1.0.1

The window shows up but there is no video from the camera. This is a Microsoft LifeCam Cinema USB camera:
http://www.hitonline.com.au/shop/product/2349

Interestingly, it works in Cheese with the default resolution of 1280x720 chosen by it. However it reverts back to the laptop's inbuilt camera if you fiddle with the photo resolution.
Comment 1 Olivier Crête 2013-01-24 02:48:54 UTC 
9963779 == V4L2_CID_HUE

So I doubt it's related to your problem.. That said, this log tries to open the camera in 1280x800
Comment 2 Olivier Crête 2013-01-24 03:17:31 UTC 
Can you try both of these and check what works or not?

gst-launch-1.0 v4l2src ! video/x-raw, width=1280, height=800 ! videoconvert ! xvimagesink
gst-launch-1.0 v4l2src ! video/x-raw, width=1280, height=720 ! videoconvert ! xvimagesink

My guess is that some resolutions are broken for some reason ?
Comment 3 Tobias Mueller 2013-06-06 12:21:01 UTC 
Closing this bug report as no further information has been provided. Please feel free to reopen this bug if you can provide the information asked for.
Thanks!