如何将 IPicture 转换为图像 - .NET 4.5 TagLib Sharp

问题描述

我想在 Windows 窗体图片框中显示歌曲的专辑插图(通过 taglib-sharp 库访问).我遇到的问题是 taglib 库返回 TagLib.IPicture 类型的图像，而图片框需要 System.Drawing.Image 类型的对象.

I am wanting to display the album artwork of a song (accessed via the taglib-sharp library) within a Windows Forms picture box. The problem I'm running into is that the taglib-library returns an image of type TagLib.IPicture whereas the picture box requires an object of type System.Drawing.Image.

我已经在互联网上搜索了好几个小时，寻找一种从 IPicture 转换为 Image 的方法，但无济于事.我拥有的最好的线索是:http://msdn.microsoft.com/en-us/library/system.windows.forms.axhost.getpicturefromipicture.aspx，但我还没有看到如何实现这一点的成功示例.

I have scoured the internet for many hours now, looking for a way to convert from an IPicture to Image, but to no avail. The best lead I have is this: http://msdn.microsoft.com/en-us/library/system.windows.forms.axhost.getpicturefromipicture.aspx, but I have yet to see a successful example of how to implement this.

有关如何在这两种类型之间转换的任何帮助将不胜感激.注意:在这种情况下，IPicture 与 IPictureDisp 不同.

Any help as to how to convert between these two types would be much appreciated. Note: IPicture is not analogous to IPictureDisp in this case.

推荐答案

我以前做过相反的事情 - 将现有的 .jpg 转换为 IPicture 以嵌入到 .mp3 文件中.我只是尝试反转该操作，并在调整和测试后得出以下结论:

I've done the opposite before - turning an existing .jpg into an IPicture for embedding in an .mp3 file. I just tried reversing that operation and, after tweaking and testing, came up with this:

TagLib.File tagFile = TagLib.File.Create(mp3FilePath);
MemoryStream ms = new MemoryStream(tagFile.Tag.Pictures[0].Data.Data);
System.Drawing.Image image = System.Drawing.Image.FromStream(ms);

感谢您的提问 - 我已经知道我自己将如何使用它！

Thanks for the question - I already know how I'm going to use this myself!

更新:这是另一种方式(我以前做过的.jpg 到 IPicture):

Update: Here's the other way (.jpg to IPicture that I've done before):

tagFile.Tag.Pictures = new TagLib.IPicture[]
{
    new TagLib.Picture(new TagLib.ByteVector((byte[])new System.Drawing.ImageConverter().ConvertTo(System.Drawing.Image.FromFile(jpgFilePath), typeof(byte[]))))
};

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