public static MediaDetails GetMediaDetails(Stream stream)
{
var mediaDetails = new MediaDetails();
try
{
stream.Seek(0, SeekOrigin.Begin);
using (var info = new MI.MediaInfo())
{
byte[] buffer = new byte[64 * 1024];
int bufferSize; //The size of the read file buffer
//Preparing to fill MediaInfo with a buffer
info.OpenBufferInit(stream.Length, 0);
//The parsing loop
do
{
//Reading data somewhere, do what you want for this.
bufferSize = stream.Read(buffer, 0, 64 * 1024);
//Sending the buffer to MediaInfo
GCHandle gc = GCHandle.Alloc(buffer, GCHandleType.Pinned);
IntPtr fromBufferIntPtr = gc.AddrOfPinnedObject();
Status result = info.OpenBufferContinue(fromBufferIntPtr, (IntPtr)bufferSize);
gc.Free();
if ((result & Status.Finalized) == Status.Finalized)
{
break;
}
//Testing if MediaInfo request to go elsewhere
if (info.OpenBufferContinueGoToGet() != -1)
{
long position = stream.Seek(info.OpenBufferContinueGoToGet(), SeekOrigin.Begin); //Position the file
info.OpenBufferInit(stream.Length, position); //Informing MediaInfo we have performed the seek
}
} while (bufferSize > 0);
// Finalizing
info.OpenBufferFinalize(); //This is the end of the stream, MediaInfo must finish some work
string mode = info.Get(StreamKind.Audio, 0, "BitRate_Mode");
mediaDetails.Mode = string.IsNullOrEmpty(mode) ? "CBR" : mode;
mediaDetails.Bitrate = GetNullableIntValue(info, "BitRate");
mediaDetails.Channels = GetNullableIntValue(info, "Channels");
}
}
finally
{
stream.Seek(0, SeekOrigin.Begin);
}
return(mediaDetails);
}
public static bool TryGetVersion(out string version)
{
try
{
using (var info = new MI.MediaInfo())
{
version = info.Option("Info_Version");
return(true);
}
}
catch (Exception)
{
version = null;
return(false);
}
}