iOS 云信视频通话 +滤镜效果

云信SDK会把采集数据 回调出来ide NIMNetCallVideoCaptureParam *param = [[NIMNetCallVideoCaptureParamalloc]init];测试     param.videoHandler = ^(CMSampleBufferRef _Nonnull sampleBuffer) {spa //1- 添加回调orm     };input  

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