bytedeco/javacv

Regarding Error: [AVFilterGraph @ 000000002886ff00] No such filter: 'eq'

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#2,084 opened on Aug 16, 2023

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enhancementhelp wanted

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Description

First of all, thanks for this wonderful javacv project.

I installed javacv-platform version 1.5.9, ffmpeg-platform 6.0-1.5.9 and trying this filter in the code to adjust the brightness

FFmpegFrameFilter frameFilter = new FFmpegFrameFilter( "eq=brightness=0.25", grabber.getImageWidth(), grabber.getImageHeight()) ;

However, its giving the below error Error: [AVFilterGraph @ 000000002886ff00] No such filter: 'eq' org.bytedeco.javacv.FFmpegFrameFilter$Exception: avfilter_graph_parse_ptr() error -1279870712 (For more details, make sure FFmpegLogCallback.set() has been called.)

Is the downloaded binaries are compiled with the libraries (that includes filters)? Why this error is coming?

Contributor guide

Research direction
Check if the FFmpeg binary bundled with javacv platform includes the 'eq' filter by running ffmpeg filters. If not, rebuild FFmpeg with the necessary configure options or switch to a binary that supports it.
Tech stack
java
Domain
backend
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
JavaFFmpeg
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75