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taglib-sharp

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Library for reading and writing metadata in media files

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# TagLib#

[![Join the chat at https://gitter.im/mono/taglib-sharp](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/mono/taglib-sharp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)

(aka *Taglib-sharp*) is a .NET platform-independent library (tested on Windows/Linux) for reading and writing
metadata in media files, including video, audio, and photo formats.
This is a convenient one-stop-shop to present or tag all your media collection, regardless of which format/container
these might use. You can read/write the standard or more common tags/properties of a media, or you can also create and
retrieve your own custom tags.

It supports the following formats (by file-extensions):
 * **Video:** mkv, ogv, avi, wmv, asf, mp4 (m4p, m4v), mpeg (mpg, mpe, mpv, mpg, m2v)
 * **Audio:** aa, aax, aac, aiff, ape, dsf, flac, m4a, m4b, m4p, mp3, mpc, mpp, ogg, oga, wav, wma, wv, webm
 * **Images:** bmp, gif, jpeg, pbm, pgm, ppm, pnm, pcx, png, tiff, dng, svg

It is API stable, with only API additions (not changes or removals)
occuring in the 2.0 series.

## Examples

### Read/write metadata from a video
```C#
var tfile = TagLib.File.Create(@"C:\My video.avi");
string title = tfile.Tag.Title;
TimeSpan duration = tfile.Properties.Duration;
Console.WriteLine("Title: {0}, duration: {1}", title, duration);

// change title in the file
tfile.Tag.Title = "my new title";
tfile.Save();
```

### Read/write metadata from a Audio file
```C#
var tfile = TagLib.File.Create(@"C:\My audio.mp3");
string title = tfile.Tag.Title;
TimeSpan duration = tfile.Properties.Duration;
Console.WriteLine("Title: {0}, duration: {1}", title, duration);

// change title in the file
tfile.Tag.Title = "my new title";
tfile.Save();
```

### Read/write metadata from an Image
```C#
var tfile = TagLib.File.Create(@"C:\My picture.jpg");
string title = tfile.Tag.Title;
var tag =  tfile.Tag as TagLib.Image.CombinedImageTag;
DateTime? snapshot = tag.DateTime;
Console.WriteLine("Title: {0}, snapshot taken on {1}", title, snapshot);

// change title in the file
tfile.Tag.Title = "my new title";
tfile.Save();
```

### Read/write custom tags from a specific format
```C#
var tfile = TagLib.File.Create(@"C:\My song.flac");
var custom = (TagLib.Ogg.XiphComment) tfile.GetTag(TagLib.TagTypes.Xiph);

// Read
string [] myfields = custom.GetField("MY_TAG");
Console.WriteLine("First MY_TAG entry: {0}", myfields[0]);

// Write
custom.SetField("MY_TAG", new string[] { "value1", "value2" });
custom.RemoveField("OTHER_FIELD");
rgFile.Save();
```

## Website
TagLib# is available on GitHub: <https://github.com/mono/taglib-sharp>
* **Bugs:**     Create an [issue](https://github.com/mono/taglib-sharp/issues)
* **Chat:**     Join us at [Gitter](https://gitter.im/mono/taglib-sharp)
* **Git:**      Get the source at <git://github.com/mono/taglib-sharp.git>

## Installation From NuGet

TagLib# is available on NuGet: <https://www.nuget.org/packages/TagLibSharp>

Install from package manager:

PM> Install-Package TagLibSharp -Version 2.3.0

## Building and Running

### Command Line

#### To Build From Git:

```sh
git clone https://github.com/mono/taglib-sharp.git
cd taglib-sharp
dotnet build
```

#### To Test:

```
dotnet test
```

### Build in IDE (Visual Studio, Visual Studio for Mac, Rider, etc):

You can open it in Visual Studio by using TaglibSharp.sln

#### Running regression by using Nunit 3 Test Adapter:

1. Ensure NuGet packages have been restored
    1. See: <https://docs.microsoft.com/en-us/nuget/consume-packages/package-restore>
2. In Visual Studio, go to menu: Tools > Extensions and Updates > Online
   (In Visual Studio 2019, use Extensions > Manage Extensions)
3. Search: Nunit 3 Test Adapter
4. Download and install it
5. Open from menu: Test > Windows > Test Explorer
   (In Visual Studio 2019, use Test > Test Explorer)
6. You can run your tests from this panel (*not* using the "Start" button)
7. You can debug your tests from this panel:
   1. Double click on a test. Set some breakpoints in the test in the editor panel.
   2. right-click on the same test, select "Debug Selected tests".

#### To test some scenarios and take advantage of the debugger:

1. Make the "debug" project the Startup project
    (Right-click on the project, select: "Set as StartUp Project")
2. Just modify the "Program.cs"
3. Set some breakpoints and hit the "Start" button

## They also use TagLib#
Non exhaustive list of projects that use TagLib#:
* [Lidarr](https://lidarr.audio/)
* [MediaPortal 2](https://www.team-mediaportal.com/wiki/display/MediaPortal2/MediaPortal+2)
* [F-Spot](https://en.wikipedia.org/wiki/F-Spot)

And you, what do you use TagLib# for? Reply [here](https://github.com/mono/taglib-sharp/issues/120)

## Contributions

TagLib# is free/open source software, released under the LGPL.
We welcome contributions!  Please try to match our coding style,
and include unit tests with any patches.  Patches can be submitted
by issuing a Pull Request (Git).

taglib-sharp

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