brennanMKE

func processSampleBuffer(scale: Float, sampleBuffer: CMSampleBuffer, writerInput: AVAssetWriterInput) -> Bool {
    guard let blockBuffer = CMSampleBufferGetDataBuffer(sampleBuffer) else {
        return false
    }
    let length = CMBlockBufferGetDataLength(blockBuffer)
    var sampleBytes = UnsafeMutablePointer<Int16>.allocate(capacity: length)
    defer { sampleBytes.deallocate(capacity: length) }
    
    guard checkStatus(CMBlockBufferCopyDataBytes(blockBuffer, 0, length, sampleBytes), message: "Copying block buffer") else {
        return false