V4L capture regression bug (Bug #3760)

Added by Radek Svoboda over 10 years ago. Updated over 10 years ago.

Status:Cancelled Start date:2014-06-19
Priority:Normal Due date:
Assignee:- % Done:

100%
Category:highgui-video
Target version:2.4.10
Affected version:2.4.9 (latest release) Operating System:Linux
Difficulty:Hard HW Platform:x64
Pull request:

Description

In OpenCV 2.4.9 (default Linux cmake-gui build) a regression appeared in V4L capture caused by the last patch http://code.opencv.org/projects/opencv/repository/revisions/b184d7f27b9115b7532c7e021e11051a74e93fde by Dave Jones. The bug is hard to reproduce, but on one of my systems (clean Kubuntu 12.04.4 installation) at some of the resolution setups it causes crash of system USB driver, all USB devices (camera, keyboard, mouse) stops working, the problem is solved only by hard reset. The problem does not appear in OpenCV 2.4.8 or any previous (I tried all 2.4.x versions), where the camera works OK even though the annnoying VIDIOC_QUERYMENU messages appears. I would rather revert to annoying messages than to have strange system crashes. Please revert the change, I will try to track the bug more precisely.

History

#1
Updated by Radek Svoboda over 10 years ago

  • Status changed from New to Cancelled
  • % Done changed from 0 to 100

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