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

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;