NextLevelSessionExporter, handle missing failure cases

#19

Author: piemonte

Sources/NextLevelSessionExporter.swift

@@ -451,14 +451,20 @@ extension NextLevelSessionExporter {
 
                     var toRenderBuffer: CVPixelBuffer? = nil
                     let result = CVPixelBufferPoolCreatePixelBuffer(kCFAllocatorDefault, pixelBufferPool, &toRenderBuffer)
-                    if result == kCVReturnSuccess {
+                    switch result {
+                    case kCVReturnSuccess:
                         if let toBuffer = toRenderBuffer {
                             self._renderHandler?(pixelBuffer, self._lastSamplePresentationTime, toBuffer)
                             if pixelBufferAdaptor.append(toBuffer, withPresentationTime:self._lastSamplePresentationTime) == false {
                                 error = true
                             }
                             handled = true
                         }
+                        break
+                    default:
+//                        debugPrint("result, \(result)")
+                        error = true
+                        break
                     }
                 }
             }