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我有一个应用程序,其中相同的捕获视频显示在多个 QTCaptureLayers 中。我的帧速率非常低。为什么会这样?
我的问题是我忽略了在不同的 QTCaptureVideoPreviewOutputs 之间同步像素缓冲区属性。必须针对像素缓冲区属性的每个不同设置处理输入,这导致帧速率降低。