/// <summary>
/// Pass the 'inStream' through exiftool and write the output to the 'outStream'.
/// </summary>
private void WriteTemporaryFile(Stream file, Stream input)
{
// get a buffer
var buffer = BufferCache.Get();
// read from the input stream
int count = input.Read(buffer, 0, Global.BufferSizeLocal);
// write the buffer to the file
file.Write(buffer, 0, count);
// reset the buffer
BufferCache.Set(buffer);
// is this the final buffer?
if (count < Global.BufferSizeLocal)
{
// yes, dispose of the file stream
file.Dispose();
var process = _coordinator.Process.TakeItem();
process.StandardInput.BaseStream.Write(_bytesRemoveMetadata, 0, _bytesRemoveMetadata.Length);
byte[] pathBytes = System.Text.Encoding.ASCII.GetBytes(Path);
process.StandardInput.BaseStream.Write(pathBytes, 0, pathBytes.Length);
process.StandardInput.BaseStream.Write(_coordinator.BytesExecute, 0, _coordinator.BytesExecute.Length);
process.StandardInput.BaseStream.Flush();
_coordinator.Process.Release();
// add this task to run with the coordinators process
_coordinator.Add(this);
}
else
{
// continue writing the temporary file
ManagerUpdate.Control.AddSingle(WriteTemporaryFile, file, input);
}
}
/// <summary>
/// Remove metadata from the media found in the input stream.
/// </summary>
public MetaRetrieval(MediaCoordinator coordinator, string path, IAction <MetaRetrieval> onComplete, bool removeFile = true)
{
_coordinator = coordinator;
_removeTempFile = removeFile;
// create a name for the media
Path = path;
OnComplete = onComplete;
OnComplete.ArgA = this;
var process = _coordinator.Process.TakeItem();
process.StandardInput.BaseStream.Write(_bytesGetMetadata, 0, _bytesGetMetadata.Length);
byte[] pathBytes = System.Text.Encoding.ASCII.GetBytes(Path);
process.StandardInput.BaseStream.Write(pathBytes, 0, pathBytes.Length);
process.StandardInput.BaseStream.Write(_coordinator.BytesExecute, 0, _coordinator.BytesExecute.Length);
process.StandardInput.BaseStream.Flush();
_coordinator.Process.Release();
_coordinator.Add(this);
}