bytedeco/javacv

High quality gif with FfmpegFrameRecorder

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#1,112 opened on Dec 25, 2018

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Description

Hi, I'm using FfmpegFrameGrabber and FfmpegFrameRecorder to making Gif. First I extract Gif frames by grabber and convert them to bitmaps by Bitmap frameBitmap = new AndroidFrameConverter().convert(frame );

then I do some Edits on Them and convert them to Frame object again. and then make gif of them by recorder. I have tested different PixelFormat But the quality is still bad. also set videoquality to 1. .... from ffmpeg documentation I have found these commands make the Gif with high quality.. ffmpeg -i StickAround.mp4 -filter_complex "[0:v] palettegen" palette.png ffmpeg -i StickAround.mp4 -i palette.png -filter_complex "[0:v][1:v] paletteuse" prettyStickAround.gif is it possible to do this? I know it may be done by FrameFilter but I dont know how...

Contributor guide

Research direction
Investigate how to use FFmpeg filtergraph (palettegen, paletteuse) in JavaCV via FrameFilter or custom filter chaining.
Tech stack
java
Domain
backend
Issue type
Research
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.
1-2 days
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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.
65