FULSVideoProcessingDemo 是集成了 Faceunity 面部跟踪和虚拟道具功能 和 云信短视频 的 Demo。
本文是 FaceUnity SDK 快速对云信短视频的导读说明，关于 FaceUnity SDK 的详细说明，请参看 FULiveDemo
将 FaceUnity 文件夹全部拖入工程中，并且添加依赖库 OpenGLES.framework、Accelerate.framework、CoreMedia.framework、AVFoundation.framework、stdc++.tbd
在 NTESRecordVC.m 的 viewDidLoad 中调用快速加载道具函数，该函数会创建一个美颜道具及指定的贴纸道具。
[[FUManager shareManager] loadItems];注：FUManager 的 shareManager 函数中会对 SDK 进行初始化，并设置默认的美颜参数。
在 NTESRecordVC.m 的 viewDidLoad:方法中添加一下代码
__weak typeof(self) weakSelf = self;
_externalVideoFrameCallback = ^(CMSampleBufferRef pixelBuf) {
CVPixelBufferRef buffer = CMSampleBufferGetImageBuffer(pixelBuf) ;
[[FUManager shareManager] renderItemsToPixelBuffer:buffer];
[weakSelf.mediaCapture externalInputVideoFrame:pixelBuf];
};
_mediaCapture.externalVideoFrameCallback = _externalVideoFrameCallback;在 SVDTranscodePreviewVC.m 中添加以下代码
-(void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
__weak typeof(self)weakSelf = self ;
_mediaTransc.externalVideoFrameCallback = ^(CMSampleBufferRef sampleBuffer) {
CVPixelBufferRef pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
[[FUManager shareManager] renderItemsToPixelBuffer:pixelBuffer];
[weakSelf.mediaTransc externalInputVideoFrame:sampleBuffer];
};
}本例中通过添加 FUAPIDemoBar 来实现切换道具及调整美颜参数的具体实现，FUAPIDemoBar 是快速集成用的UI，客户可自定义UI。
1、在 NTESRecordVC.m 中添加头文件，并创建 demoBar 属性
#import <FUAPIDemoBar/FUAPIDemoBar.h>
@property (nonatomic, strong) FUAPIDemoBar *demoBar ;2、在 demoBar 的 get 方法中对其进行初始化，并遵循代理 FUAPIDemoBarDelegate，实现代理方法 demoBarDidSelectedItem: 和 demoBarBeautyParamChanged以进一步实现道具的切换及美颜参数的调整。
初始化
// demobar 初始化
-(FUAPIDemoBar *)demoBar {
if (!_demoBar) {
_demoBar = [[FUAPIDemoBar alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 220, self.view.frame.size.width, 164)];
_demoBar.itemsDataSource = [FUManager shareManager].itemsDataSource;
_demoBar.selectedItem = [FUManager shareManager].selectedItem ;
_demoBar.filtersDataSource = [FUManager shareManager].filtersDataSource ;
_demoBar.beautyFiltersDataSource = [FUManager shareManager].beautyFiltersDataSource ;
_demoBar.filtersCHName = [FUManager shareManager].filtersCHName ;
_demoBar.selectedFilter = [FUManager shareManager].selectedFilter ;
[_demoBar setFilterLevel:[FUManager shareManager].selectedFilterLevel forFilter:[FUManager shareManager].selectedFilter] ;
_demoBar.skinDetectEnable = [FUManager shareManager].skinDetectEnable;
_demoBar.blurShape = [FUManager shareManager].blurShape ;
_demoBar.blurLevel = [FUManager shareManager].blurLevel ;
_demoBar.whiteLevel = [FUManager shareManager].whiteLevel ;
_demoBar.redLevel = [FUManager shareManager].redLevel;
_demoBar.eyelightingLevel = [FUManager shareManager].eyelightingLevel ;
_demoBar.beautyToothLevel = [FUManager shareManager].beautyToothLevel ;
_demoBar.faceShape = [FUManager shareManager].faceShape ;
_demoBar.enlargingLevel = [FUManager shareManager].enlargingLevel ;
_demoBar.thinningLevel = [FUManager shareManager].thinningLevel ;
_demoBar.enlargingLevel_new = [FUManager shareManager].enlargingLevel_new ;
_demoBar.thinningLevel_new = [FUManager shareManager].thinningLevel_new ;
_demoBar.jewLevel = [FUManager shareManager].jewLevel ;
_demoBar.foreheadLevel = [FUManager shareManager].foreheadLevel ;
_demoBar.noseLevel = [FUManager shareManager].noseLevel ;
_demoBar.mouthLevel = [FUManager shareManager].mouthLevel ;
_demoBar.delegate = self;
}
return _demoBar ;
}切换贴纸代理方法
/** FUAPIDemoBarDelegate **/
// 切换贴纸
- (void)demoBarDidSelectedItem:(NSString *)itemName {
[[FUManager shareManager] loadItem:itemName];
}更新美颜参数方法
// 更新美颜参数
- (void)demoBarBeautyParamChanged {
[FUManager shareManager].skinDetectEnable = _demoBar.skinDetectEnable;
[FUManager shareManager].blurShape = _demoBar.blurShape;
[FUManager shareManager].blurLevel = _demoBar.blurLevel ;
[FUManager shareManager].whiteLevel = _demoBar.whiteLevel;
[FUManager shareManager].redLevel = _demoBar.redLevel;
[FUManager shareManager].eyelightingLevel = _demoBar.eyelightingLevel;
[FUManager shareManager].beautyToothLevel = _demoBar.beautyToothLevel;
[FUManager shareManager].faceShape = _demoBar.faceShape;
[FUManager shareManager].enlargingLevel = _demoBar.enlargingLevel;
[FUManager shareManager].thinningLevel = _demoBar.thinningLevel;
[FUManager shareManager].enlargingLevel_new = _demoBar.enlargingLevel_new;
[FUManager shareManager].thinningLevel_new = _demoBar.thinningLevel_new;
[FUManager shareManager].jewLevel = _demoBar.jewLevel;
[FUManager shareManager].foreheadLevel = _demoBar.foreheadLevel;
[FUManager shareManager].noseLevel = _demoBar.noseLevel;
[FUManager shareManager].mouthLevel = _demoBar.mouthLevel;
[FUManager shareManager].selectedFilter = _demoBar.selectedFilter ;
[FUManager shareManager].selectedFilterLevel = _demoBar.selectedFilterLevel;
}3、在 viewDidLoad: 中将 demoBar 添加到页面上
[self.view addSubview:self.demoBar];视频录制结束时需要销毁道具
[[FUManager shareManager] destoryItems]快速集成完毕，关于 FaceUnity SDK 的更多详细说明，请参看 FULiveDemo
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