scwaveformview's Introduction

SCWaveformView

A blazing fast customizable waveform view. Extract the audio section of an asset (which can be both video or audio) and display a waveform. Compared to other libs that are found on the web, this one does not do much memory allocations. Only one pass is also done to create the waveform.

Main features:

Can show a play progress
Colors are changeable at runtime without reprocessing the asset
Generated waveforms are retrievable
Set the asset, then you are good to go
ARC

This project is inspired from https://github.com/fulldecent/FDWaveformView

Podfile

If you are using cocoapods, you can use this project with the following Podfile

platform :ios, '7.0'
pod "SCWaveformView", "1.0.0"

Example

 // Allocating the waveformview
 SCWaveformView *waveformView = [[SCWaveformView alloc] init];
 
 // Setting the asset
 AVAsset *asset = [AVURLAsset URLAssetWithURL:[NSURL URLWithString:@"blabla.mp3"]];
 waveformView.asset = asset;
 
 // Setting the waveform colors
 waveformView.normalColor = [UIColor greenColor];
 waveformView.progressColor = [UIColor redColor];
 
 // Set the play progress
 waveformView.progress = 0.4;
 
 // Even though the waveformview will eventually reprocess the waveforms when needed
 // You can ask it to generate the waveforms right now
 [waveformView generateWaveforms];
 
 // Retrieve the waveforms. for whatever reasons
 UIImage *progressWaveformImage = waveformView.generatedProgressImage;
 UIImage *normalWaveformImage = waveformView.generatedNormalImage;

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