bytedeco/javacv

how to get the spectrum of the audio processed by the filter

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#1,639 opened on Apr 28, 2021

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enhancementhelp wanted

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Description

Hello, I would like to ask how to get the spectrum of the audio processed by the filter of showwavespic .

Contributor guide

Research direction
Investigate how to extract audio spectrum data from the output of the showwavespic filter in FFmpeg, and how to access that data via JavaCV's FFmpeg bindings. Look for examples of using showwavespic filter and analyzing the resulting waveform or spectrum in Java.
Tech stack
java
Domain
backend
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
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.
Needs investigation
Prerequisites
JavaFFmpeg basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70