ios - 如何从 AVPlayerItem 创建波浪可视化工具？ (iOS)

Question

我一直在用这个https://github.com/teodorpatras/Jukebox库来帮助从 URL 播放音频，但我在尝试创建像这样的 wave 可视化工具时遇到了问题 https://github.com/ApplikeySolutions/PandoraPlayer但它只允许从音乐库中播放。在 Pandora Player 中有开源波浪可视化工具 https://github.com/ApplikeySolutions/PandoraPlayer/issues/3但它需要像这样转换成某种缓冲区

public func audioPlayer(_ audioPlayer: EZAudioPlayer!, playedAudio buffer: UnsafeMutablePointer<UnsafeMutablePointer<Float>?>!, withBufferSize bufferSize: UInt32, withNumberOfChannels numberOfChannels: UInt32, in audioFile: EZAudioFile!) {

    DispatchQueue.main.async {[weak self] in
        self?.updatePlaybackStatus()
    }
    self.waveVisualizer?.updateWaveWithBuffer(buffer, withBufferSize: bufferSize, withNumberOfChannels: numberOfChannels)
}

Answer 1

引用这个https://github.com/alankarmisra/SwiftSiriWaveformView这将帮助您创建波形。

@IBOutlet weak var audioView: SwiftSiriWaveformView!

你可以用

audioView.amplitude = 1.0

安装(CocoaPods):

SwiftSiriWaveformView is available through CocoaPods. To install it, simply add the following lines to your Podfile:

For Cocoapods >= 1.0 use_frameworks! target "YOUR_PROJECT_NAME" do pod "SwiftSiriWaveformView" end For Cocoapods < 1.0 use_frameworks! pod "SwiftSiriWaveformView"