121 lines
3.2 KiB
C#
121 lines
3.2 KiB
C#
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using System;
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using System.Runtime.InteropServices;
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public class MediaInfo : IDisposable
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{
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IntPtr Handle;
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public MediaInfo(string file)
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{
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if ((Handle = MediaInfo_New()) == IntPtr.Zero)
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throw new Exception("Failed to call MediaInfo_New");
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if (MediaInfo_Open(Handle, file) == 0)
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throw new Exception("Error MediaInfo_Open");
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}
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public string GetInfo(MediaInfoStreamKind kind, string parameter)
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{
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return Marshal.PtrToStringUni(MediaInfo_Get(Handle, kind, 0,
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parameter, MediaInfoKind.Text, MediaInfoKind.Name));
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}
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public int GetCount(MediaInfoStreamKind kind) => MediaInfo_Count_Get(Handle, kind, -1);
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public string GetVideo(int stream, string parameter)
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{
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return Marshal.PtrToStringUni(MediaInfo_Get(Handle, MediaInfoStreamKind.Video,
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stream, parameter, MediaInfoKind.Text, MediaInfoKind.Name));
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}
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public string GetAudio(int stream, string parameter)
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{
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return Marshal.PtrToStringUni(MediaInfo_Get(Handle, MediaInfoStreamKind.Audio,
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stream, parameter, MediaInfoKind.Text, MediaInfoKind.Name));
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}
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public string GetText(int stream, string parameter)
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{
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return Marshal.PtrToStringUni(MediaInfo_Get(Handle, MediaInfoStreamKind.Text,
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stream, parameter, MediaInfoKind.Text, MediaInfoKind.Name));
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}
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public string GetSummary(bool complete, bool rawView)
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{
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MediaInfo_Option(Handle, "Language", rawView ? "raw" : "");
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MediaInfo_Option(Handle, "Complete", complete ? "1" : "0");
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return Marshal.PtrToStringUni(MediaInfo_Inform(Handle, 0)) ?? "";
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}
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bool Disposed;
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public void Dispose()
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{
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if (!Disposed)
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{
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if (Handle != IntPtr.Zero)
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{
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MediaInfo_Close(Handle);
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MediaInfo_Delete(Handle);
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}
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Disposed = true;
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}
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}
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~MediaInfo()
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{
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Dispose();
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}
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[DllImport("MediaInfo.dll")]
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static extern IntPtr MediaInfo_New();
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[DllImport("MediaInfo.dll", CharSet = CharSet.Unicode)]
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static extern int MediaInfo_Open(IntPtr handle, string path);
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[DllImport("MediaInfo.dll", CharSet = CharSet.Unicode)]
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static extern IntPtr MediaInfo_Option(IntPtr handle, string option, string value);
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[DllImport("MediaInfo.dll")]
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static extern IntPtr MediaInfo_Inform(IntPtr handle, int reserved);
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[DllImport("MediaInfo.dll")]
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static extern int MediaInfo_Close(IntPtr handle);
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[DllImport("MediaInfo.dll")]
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static extern void MediaInfo_Delete(IntPtr handle);
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[DllImport("MediaInfo.dll", CharSet = CharSet.Unicode)]
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static extern IntPtr MediaInfo_Get(IntPtr handle, MediaInfoStreamKind kind,
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int stream, string parameter, MediaInfoKind infoKind, MediaInfoKind searchKind);
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[DllImport("MediaInfo.dll", CharSet = CharSet.Unicode)]
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static extern int MediaInfo_Count_Get(IntPtr handle, MediaInfoStreamKind streamKind, int stream);
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}
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public enum MediaInfoStreamKind
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{
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General,
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Video,
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Audio,
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Text,
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Other,
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Image,
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Menu,
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Max,
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}
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public enum MediaInfoKind
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{
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Name,
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Text,
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Measure,
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Options,
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NameText,
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MeasureText,
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Info,
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HowTo
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}
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