1: The location of the locally collected video data after preprocessing corresponds to the onCaptureVideoFrame callback. The observed video here has the effect of video pre-processing, which can be verified by enabling image enhancement, virtual background, or watermark.
8: The position after local video capture and before pre-processing. The observed video here does not have pre-processing effects, which can be verified by enabling image enhancement, virtual background, or watermarks.
4: The pre-encoder position, which corresponds to the video data in the onPreEncodeVideoFrame callback. The observed video here has the effects of video pre-processing and encoding pre-processing. To verify the pre-processing effects of the video, you can enable image enhancement, virtual background, or watermark. To verify the pre-encoding processing effect, you can set a lower frame rate (for example, 5 fps).
2: The pre-renderer position, which corresponds to the video data in the onRenderVideoFrame callback.
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The frame position of the video observer.