Changing AVCaptureDeviceInput leads to AVAssetWriterStatusFailed

Question

I am trying to change the Camera View Front and Back.it is working well.if video is recorded without flipping with Pause/Record Option

Answer 1

The problem is this line:

if (connection != _videoConnection)
    {
        bVideo = NO;
    }

When you change the camera a new videoConnection is created, I don't know where either how. But if you change this line like below it works:

//if (connection != _videoConnection)
if ([connection.output connectionWithMediaType:AVMediaTypeVideo] == nil)
    {
        bVideo = NO;
    }