bytedeco/javacv

Do you support rubberband filter？

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#2,130 opened on Nov 20, 2023

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 (7 comments) (0 reactions) (0 assignees)Java (1,583 forks)batch import
enhancementhelp wanted

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Description

I want to execute the ffmpeg command in Android. I have introduced the Javacv ffmpeg library in the project, and I used the following method to call the ffmpeg command

String ffmpeg = Loader.load(org.bytedeco.ffmpeg.ffmpeg.class);
ProcessBuilder processBuilder = new ProcessBuilder(ffmpeg, "-i", "1.mp3");

but, I have found that this ffmpeg does not support rubberband filters. May I know what to do

I need to use this filter to change the pitch of the audio

https://ffmpeg.org/ffmpeg-filters.html#rubberband

Contributor guide

Research direction
Investigate how JavaCV's FFmpeg wrapper is built and linked. Check the FFmpeg build configuration for librubberband support. If missing, rebuild FFmpeg with enable librubberband and update JavaCV's native library loading. Alternatively, use a prebuilt FFmpeg with rubberband or consider using JavaCV's FFmpegFrameFilter directly if possible.
Tech stack
java
Domain
audio video rtc
Issue type
Feature
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.
1-2 days
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 knowledge
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40