小编Aka*_*kar的帖子

Quickblox iOS视频附件

我已将Quickblox iOS(Objc)库集成到我的聊天模块应用程序中.

作为QBRequest TUploadFile方法下的附件的图像是可能的.但我找不到任何有效的解决方案来制作同一请求下的视频附件.

我已经通过阅读Quickblog中的文件证实了这一点 - 在Quickblox聊天SDK下可以使用视频附件.

有没有人有任何工作解决方案来制作视频文件附件？

下面的代码是为了在QBRequest TUploadFile下上传视频而编写的.

提前致谢!

- (void)uploadAndSendAttachmentMessage:(QBChatMessage*)message toDialog:(QBChatDialog*)dialog withChatService:(QMChatService*)chatService withAttachedVideo:(NSData*)videoData completion:(QBChatCompletionBlock)completion {
    [self changeMessageAttachmentStatus:QMMessageAttachmentStatusLoading forMessage:message];

    [QBRequest TUploadFile:videoData fileName:@"attachment video" contentType:@"video/mp4" isPublic:YES successBlock:^(QBResponse* response, QBCBlob* blob) {
        QBChatAttachment* attachment = [QBChatAttachment new];
        attachment.type = @"video";
        attachment.ID = blob.UID;
        attachment.url = [blob publicUrl];

        message.attachments = @[attachment];
        message.text = @"Attachment video";

        [self saveData:videoData chatAttachment:attachment error:nil];
        [self.attachmentsStorage setObject:videoData forKey:attachment.ID];

        [self changeMessageAttachmentStatus:QMMessageAttachmentStatusLoaded forMessage:message];

        [chatService sendMessage:message type:QMMessageTypeText toDialog:dialog saveToHistory:YES saveToStorage:YES completion:completion];
    } …

我正在使用 GPUImage 框架进行图像过滤器。

我在相机上应用了 ToonFilter() 以获得卡通滤镜效果。

我的问题是在使用 GPUImage 使用 ToonFilter 效果在相机上捕获图像时。

下面是使用 GPUImage 相机显示 ToonFilter 的代码，并捕获具有相同效果的新图像。

请指导我如何使用相同的过滤器捕获图像？

注意：我能够成功地打开带有 ToonFilter 效果的相机 - 问题仅在于捕获带有滤镜效果的新图像。

代码 ：

import UIKit
import GPUImage
import AVFoundation

class SelfieFilterVC: UIViewController, UISplitViewControllerDelegate  {

    @IBOutlet var filterSlider: UISlider?
    @IBOutlet var filterView: RenderView?

    let videoCamera:Camera?
    var blendImage:PictureInput?

    override func viewDidLoad() {

        super.viewDidLoad()

        self.filterOperation = FilterOperation(
            filter:{ToonFilter()},
            listName:"Toon",
            titleName:"Toon",
            sliderConfiguration:.disabled,
            sliderUpdateCallback: nil,
            filterOperationType:.singleInput
        )

        self.configureView()
    }

    required init(coder aDecoder: NSCoder)
    {
        do {
            videoCamera = try Camera(sessionPreset:AVCaptureSessionPreset640x480, location:.backFacing)
            videoCamera!.runBenchmark = …

我要求通过单击"向右"按钮使UICollectionView单元滚动到数组中的下5个项目,并通过单击"向左"按钮显示前5次.

任何人都可以通过提出任何建议来帮助我迅速做到这一点.

下面是编写的代码,在水平滚动中显示集合视图上的列表.

override func viewDidLoad() {

        super.viewDidLoad()

        self.arrFalconList = ["ic_falcon_1","ic_falcon_2","ic_falcon_3","ic_falcon_4","ic_falcon_5","ic_falcon_6","ic_falcon_7"]
    }



func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.arrFalconList.count
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

        let aFalconCell = collectionView.dequeueReusableCell(withReuseIdentifier: "FalconCollectionViewCell", for: indexPath) as! FalconCollectionViewCell

        aFalconCell.imgFalcon.image = UIImage(named: self.arrFalconList[indexPath.row])
        aFalconCell.lblFalcon.text = self.arrFalconList[indexPath.row]
        aFalconCell.imgFalcon.layer.cornerRadius = ((aFalconCell.imgFalcon.frame.width) / 2)
        aFalconCell.imgFalcon.clipsToBounds = true

        if aFalconCell.isSelected {
            aFalconCell.imgFalcon.layer.borderColor = UIColor.init(red: 241.0/255.0, green: 55.0/255.0, blue: 61.0/255.0, alpha: 1.0).cgColor
            aFalconCell.imgFalcon.layer.borderWidth = 2
        }else{
            aFalconCell.imgFalcon.layer.borderColor = UIColor.clear.cgColor
            aFalconCell.imgFalcon.layer.borderWidth …