FS#73887 - [opencv] 4.5.5-2 breaks videocapture

Attached to Project: Arch Linux
Opened by Benjamin Gallois (bgallois) - Saturday, 19 February 2022, 12:55 GMT
Last edited by Antonio Rojas (arojas) - Saturday, 19 February 2022, 23:48 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Antonio Rojas (arojas)
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 2
Private No

Details

Description:
Since opencv 4.5.5-2, opening a video using VideoCapture with the FFmpeg backend result to empty images or a segmentation fault when trying to access a particular image in a movie using videocapture.set(CAP_PROP_POS_FRAMES, index).


Additional info:
* opencv 4.5.5-2
* ffmpeg 2:5.0-4
* Probably related to the opencv-4.5.5-ffmpeg-5.0.patch.txt https://github.com/opencv/opencv/issues/21455.

Steps to reproduce:
* Run the attached example with a test sample.
   backtrace.txt (0.3 KiB)
   test.cpp (0.8 KiB)
This task depends upon

Closed by  Antonio Rojas (arojas)
Saturday, 19 February 2022, 23:48 GMT
Reason for closing:  Fixed
Additional comments about closing:  opencv 4.5.5-3
Comment by Oystein Sture (oysstu) - Saturday, 19 February 2022, 13:49 GMT
This can also be confirmed through the attached python script.
Version 4.5.5-1 prints 'Success' whereas 4.5.5-2 prints 'Fail'.
   opencv_ffmpeg.py (0.2 KiB)

Loading...