bytedeco/javacv

avio_open error() error -5: Could not open 'null'

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#1,457 opened on Jun 25, 2020

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Description

Hi, is it known issue: ffmpegRecorder error: org.bytedeco.javacv.FrameRecorder$Exception: avio_open2 error() error -5: Could not open 'null' constantly after first successful pass

ffmpegRecorder = new FFMpegRecorder(streamUrl + streamKey); // little delay solves the problem -- Thread.sleep(600); ffmpegRecorder.startRecording();

Contributor guide

Research direction
Investigate the initialization sequence of FFMpegRecorder and trace the source of the null filename. The workaround suggests a race condition; look into the native code or Java bindings for proper synchronization.
Tech stack
java
Domain
audio video rtc
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.
Clear
Prerequisites
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70