ios resultion

[zhao_w_]

你好，我使用了webrtc iOS 3.4版本的SDK，发现localStream attach之后作为预览，但是分辨率会下降，画面模糊。之后使用RTCCameraPreviewView作为预览，但是这个时候通过filter处理过的数据在预览中不能体现，请问，该如何解决呢。

Hello, I use the webrtc iOS 3.4 version of the SDK, found localStream after the attach as the preview, but resolution will decline, fuzzy picture.After using RTCCameraPreviewView as preview, but this time through the filter the processed data can't reflect in the preview, excuse me, how should solve?

[Jianjun_Z_Intel]

Hi zhao,

Filter may significantly increase CPU/GPU usage. As a result, sender will degrade resolution or framerate when there is no enough system resources.

[zhao_w_]

那么我该如何实现filter呢，本地预览