bytedeco/javacv

Rendering 4k frames with javacv

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#2,077 opened on Jul 29, 2023

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Description

So I am trying to render a 4k video with CanvasFrame . It appears it's kind of struggling with that task. I have this put in the VM options: -Dsun.java2d.opengl=true but it still seems to struggle rendering the frames. Everything is fragmented when the frames are displayed. Is there some way to fix this or is CanvasFrame just not fast enough for this task?

Contributor guide

Research direction
Profile frame rendering with Java profiler to identify bottlenecks. Experiment with FFmpegFrameGrabber for hardware accelerated decoding and consider using JavaFX for rendering.
Tech stack
java
Domain
desktopperformance
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
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.
40