Optimise camera recordings on-the-fly without FFMPEG or other heavy-weight libraries Originally forked from https://github.com/google/grafika
- A collection of hacks exercising graphics features.
- An SDK app, developed for API 18 (Android 4.3). While some of the code may work with older versions of Android, no effort will be made to support them.
- Open source (Apache 2 license), copyright by Google. So you can use the code according to the terms of the license (see "LICENSE").
- A perpetual work-in-progress. It's updated whenever the need arises.
To some extent, Grafika can be treated as a companion to the Android System-Level Graphics Architecture document. The doc explains the technology that the examples rely on, and uses some of Grafika's activities as examples. If you want to understand how the code here works, start by reading that.
But we have built a simplest version of demo which solves few major problems :
Attempts to record at 720p from the default camera, displaying the preview and recording it simultaneously.(CameraCaptureActivity.java)
- Recording continues until stopped. If you back out and return, recording will start again, with a real-time gap. If you try to play the movie while it's recording, you will see an incomplete file (and probably cause the play movie activity to crash).
- The output is stored at home directory of your SD card ("grafika-2372377731.mp4").
- It can optimise your media/video on-the-fly from camera while recording
- You can change video key-frames, bitrates,framerates,size and encodings(VideoEncoderCore.java)
- The best part is everything will happen on the fly so when your recording stops, the video should be already prepared :)
- You don't need FFMPEG or other heavy libraries to perform all the above tasks
- All code is written in the Java programming language -- the NDK is not used.