bytedeco/javacv

opencv_imgcodecs.imencode：This thread tries Read and write a virtual address, and it does not have corresponding access rights to the address

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#1,509 opened on Sep 16, 2020

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Description

Hello, seniors. I found a problem. When using multi-threaded pressure measurement of opencv_imgcodecs.imencode method, the problem of JVM down occurs, but OpenCV's Imgcodecs.imencode does not have this problem. I hope to fix this problem; mdmp message "This thread tries to read Write a virtual address, and it does not have corresponding access rights to the address"

Contributor guide

Research direction
Investigate the thread safety of opencv imgcodecs.imencode in JavaCV, focusing on memory access conflicts when multiple threads call the method concurrently. Compare with the original OpenCV Imgcodecs.imencode behavior.
Tech stack
java
Domain
computer vision
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
JavaMulti threading
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40