UIControlEventTouchDown];
[self.takeButton addTarget:self action:@selector(endAction:) forControlEvents:UIControlEventTouchUpInside];
#pragma mark 视频时间少于10s松开发送
-(void)endAction:(UIButton *)sender
{
AVCaptureStillImageOutput *stillImageOutput = [[AVCaptureStillImageOutput alloc]init];
NSDictionary *outputSettings = [[NSDictionary alloc] initWithObjectsAndKeys:AVVideoCodecJPEG, AVVideoCodecKey, nil];
[stillImageOutput setOutputSettings:outputSettings];
if ([self.captureSession canAddInput:self.captureDeviceInput]) {
[self.captureSession addInput:self.captureDeviceInput];
}
if ([self.captureSession canAddOutput:stillImageOutput]) {
[self.captureSession addOutput:stillImageOutput];
