/// <summary>
/// Loads media information of specified file.
/// </summary>
/// <param name="fileName">The full path of the file to read.</param>
public void LoadInfo(string fileName) {
lastMedia = ReadMediaFile(fileName);
}
/// <summary>
/// Loads media information of specified file.
/// </summary>
/// <param name="fileName">The full path of the file to read.</param>
public async Task LoadInfoAsync(string fileName) {
lastMedia = await Task.Run(() => ReadMediaFile(fileName));
}
private MediaInfo ReadMediaFile(string fileName) {
//Initilaizing MediaInfo
MediaInfo MI = new MediaInfo();
//From: preparing an example file for reading
FileStream From = new FileStream(fileName, FileMode.Open, FileAccess.Read);
//From: preparing a memory buffer for reading
byte[] From_Buffer = new byte[64 * 1024];
int From_Buffer_Size; //The size of the read file buffer
//Preparing to fill MediaInfo with a buffer
MI.Open_Buffer_Init(From.Length, 0);
//The parsing loop
do {
//Reading data somewhere, do what you want for this.
From_Buffer_Size = From.Read(From_Buffer, 0, 64 * 1024);
//Sending the buffer to MediaInfo
System.Runtime.InteropServices.GCHandle GC = System.Runtime.InteropServices.GCHandle.Alloc(From_Buffer, System.Runtime.InteropServices.GCHandleType.Pinned);
IntPtr From_Buffer_IntPtr = GC.AddrOfPinnedObject();
Status Result = (Status)MI.Open_Buffer_Continue(From_Buffer_IntPtr, (IntPtr)From_Buffer_Size);
GC.Free();
if ((Result & Status.Finalized) == Status.Finalized)
break;
//Testing if MediaInfo request to go elsewhere
if (MI.Open_Buffer_Continue_GoTo_Get() != -1) {
Int64 Position = From.Seek(MI.Open_Buffer_Continue_GoTo_Get(), SeekOrigin.Begin); //Position the file
MI.Open_Buffer_Init(From.Length, Position); //Informing MediaInfo we have seek
}
}
while (From_Buffer_Size > 0);
//Finalizing
MI.Open_Buffer_Finalize(); //This is the end of the stream, MediaInfo must finnish some work
From.Close();
return MI;
}