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标题: 虚幻4调取摄像头 [打印本页]

作者: 流星非逝 时间: 2018-11-1 19:18
标题: 虚幻4调取摄像头
UE4引擎实使用OpenCV库实时调用电脑摄像头https://blog.csdn.net/d137578736/article/details/79037849（通过该网址实现）在编辑器模式下运行没有问题，但是打包后运行就出现了问题，请各位大神帮忙看一下，打包第三方库有什么需要注意的吗？

作者: mknmknmk 时间: 2018-11-2 08:48
ThirdParty 和Binary 必须放到插件里面，否则打包时dll 或者lib 不会拷贝

只有 Source 和Plugin 内的 dll lib 才会拷贝。

修改build.cs

作者: mknmknmk 时间: 2018-11-2 08:52
文件夹移动后需要重新编译工程 development 和development editor

作者: 流星非逝 时间: 2018-11-2 09:00

mknmknmk 发表于 2018-11-2 08:48
ThirdParty 和Binary 必须放到插件里面，否则打包时dll 或者lib 不会拷贝

只有 Source 和Plugin 内的 dll ...

请问怎么修改build.cs呢？

作者: mknmknmk 时间: 2018-11-2 09:21
我把ThirdParty 和 Binary 放到和OpenCv.build.cs 同一个目录我使用的版本是4.19
修改 OpenCv.build.cs

// Some copyright should be here...

using UnrealBuildTool;
using System.IO;

public class OpenCV : ModuleRules
{
private string ThirdPartyPath
{
      get { return Path.GetFullPath(Path.Combine(ModuleDirectory, "ThirdParty/")); }
}

public OpenCV(ReadOnlyTargetRules Target) : base(Target)
{
      // Startard Module Dependencies
PublicDependencyModuleNames.AddRange(new string[] { "Core", "RHI", "RenderCore" });
PrivateDependencyModuleNames.AddRange(new string[] { "CoreUObject", "Engine", "Slate", "SlateCore" });

      // Start OpenCV linking here!
      bool isLibrarySupported = false;

      // Create OpenCV Path
      string OpenCVPath = Path.Combine(ThirdPartyPath, "OpenCV");

      // Get Library Path
      string LibPath = "";
      //bool isdebug = Target.Configuration == UnrealTargetConfiguration.Debug && BuildConfiguration.bDebugBuildsActuallyUseDebugCRT;
      if (Target.Platform == UnrealTargetPlatform.Win64)
      {
         LibPath = Path.Combine(OpenCVPath, "Libraries", "Win64");
         isLibrarySupported = true;
      }
      else if (Target.Platform == UnrealTargetPlatform.Win32)
      {
         // TODO: add OpenCV binaries for Win32
      }
      else if (Target.Platform == UnrealTargetPlatform.Mac)
      {
         // TODO: add OpenCV binaries for Mac
      }
      else if (Target.Platform == UnrealTargetPlatform.Linux)
      {
         // TODO: add OpenCV binaries for Linux
      }
      else
      {
         string Err = string.Format("{0} dedicated server is made to depend on {1}. We want to avoid this, please correct module dependencies.", Target.Platform.ToString(), this.ToString()); System.Console.WriteLine(Err);
      }

      if (isLibrarySupported)
      {
         //Add Include path
         PublicIncludePaths.AddRange(new string[] { Path.Combine(OpenCVPath, "Includes") });

         // Add Library Path
         PublicLibraryPaths.Add(LibPath);

         //Add Static Libraries
         PublicAdditionalLibraries.Add("opencv_world320.lib");

         //Add Dynamic Libraries
         PublicDelayLoadDLLs.Add("opencv_world320.dll");
         PublicDelayLoadDLLs.Add("opencv_ffmpeg320_64.dll");

      }

      PublicDefinitions.Add(string.Format("WITH_OPENCV_BINDING={0}", isLibrarySupported ? 1 : 0));
}
}

你的工程.Build.cs  里 PublicDependencyModuleNames 添加 OpenCV 一行，编译一下

作者: mknmknmk 时间: 2018-11-2 09:27
编译截图和文件夹截图

作者: 星星 时间: 2018-11-29 11:24
很棒谢谢感谢分享

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