[TELicenseCheck setTELicense:LicenseURL key:LicenseKey completion:^(NSInteger authresult, NSString * _Nonnull errorMsg) {
 if (authresult == TELicenseCheckOk) {
     NSLog(@"Authentication successful");
 } else {
     NSLog(@"Authentication failed");
 }
}];

/// root_path: Pass in the directory where LightCore.bundle is located.
NSDictionary *assetsDict = @{@"core_name" : @"LightCore.bundle",
                             @"root_path" : [[NSBundle mainBundle] bundlePath]};
self.xMagicApi = [[XMagic alloc] initWithRenderSize:previewSize assetsDict:assetsDict];

/// Take the device camera data output as an example
/// sampleBuffer：Data output by the device camera
-(CMSampleBufferRef)didProcessCPUData:(CMSampleBufferRef)sampleBuffer{
    CVPixelBufferRef pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
    YTProcessInput *input = [[YTProcessInput alloc] init];
    input.pixelData = [[YTImagePixelData alloc] init];
    input.pixelData.data = pixelBuffer;
    input.dataType = kYTImagePixelData;
    YTProcessOutput *output = [self.xMagicKit process:input];
    if (output.pixelData.data != nil) { //output.pixelData.data：Data processed by Beauty Effect SDK
        CMSampleBufferRef outSampleBuffer = [self sampleBufferFromPixelBuffer:output.pixelData.data];
        return outSampleBuffer;
    }
    return nil;
}

/// PixelBuffer to sampleBuffer
- (CMSampleBufferRef)sampleBufferFromPixelBuffer:(CVPixelBufferRef)pixelBuffer
{
    CFRetain(pixelBuffer);
    CMSampleBufferRef outputSampleBuffer = NULL;
    CMSampleTimingInfo timing = {kCMTimeInvalid, kCMTimeInvalid, kCMTimeInvalid};
    CMVideoFormatDescriptionRef videoInfo = NULL;
    OSStatus result = CMVideoFormatDescriptionCreateForImageBuffer(NULL, pixelBuffer, &videoInfo);
    result = CMSampleBufferCreateForImageBuffer(kCFAllocatorDefault, pixelBuffer, true, NULL, NULL, videoInfo, &timing, &outputSampleBuffer);
    CFArrayRef attachments = CMSampleBufferGetSampleAttachmentsArray(outputSampleBuffer, YES);
    CFMutableDictionaryRef dict = (CFMutableDictionaryRef)CFArrayGetValueAtIndex(attachments, 0);
    CFDictionarySetValue(dict, kCMSampleAttachmentKey_DisplayImmediately, kCFBooleanTrue);
    CFRelease(videoInfo);
    CFRelease(pixelBuffer);
    return outputSampleBuffer;
}

/// Called where SDK resources need to be released
[self.xMagicApi deinit]