private void SnapshotRetriever_CameraThumbnailProduced(object sender, CameraThumbnailProducedEventArgs e)
{
SnapshotRetriever retriever = sender as SnapshotRetriever;
if (retriever != null)
{
retriever.CameraThumbnailProduced -= SnapshotRetriever_CameraThumbnailProduced;
snapshotting.Remove(retriever.Identifier);
}
OnCameraThumbnailProduced(e);
}
public override void StopAllThumbnails()
{
for (int i = snapshotting.Count - 1; i >= 0; i--)
{
SnapshotRetriever snapper = snapshotting[i];
snapper.Cancel();
snapper.Thread.Join(500);
if (snapper.Thread.IsAlive)
{
snapper.Thread.Abort();
}
snapper.CameraThumbnailProduced -= SnapshotRetriever_CameraThumbnailProduced;
snapshotting.RemoveAt(i);
}
}
public override void GetSingleImage(CameraSummary summary)
{
if (snapshotting.IndexOf(summary.Identifier) >= 0)
{
return;
}
// TODO: Retrieve moniker from identifier.
string moniker = summary.Identifier;
// Spawn a thread to get a snapshot.
SnapshotRetriever retriever = new SnapshotRetriever(summary, moniker);
retriever.CameraThumbnailProduced += SnapshotRetriever_CameraThumbnailProduced;
snapshotting.Add(summary.Identifier);
ThreadPool.QueueUserWorkItem(retriever.Run);
}
public override void GetSingleImage(CameraSummary summary)
{
SnapshotRetriever snapper = snapshotting.FirstOrDefault(s => s.Identifier == summary.Identifier);
if (snapper != null)
{
return;
}
string moniker = summary.Identifier;
// Spawn a thread to get a snapshot.
snapper = new SnapshotRetriever(summary, moniker);
snapper.CameraThumbnailProduced += SnapshotRetriever_CameraThumbnailProduced;
snapshotting.Add(snapper);
snapper.Start();
}
private void ProcessThumbnail(object sender, CameraThumbnailProducedEventArgs e)
{
SnapshotRetriever snapper = sender as SnapshotRetriever;
if (snapper == null)
{
return;
}
log.DebugFormat("Received thumbnail for {0}.", snapper.Alias);
snapper.CameraThumbnailProduced -= SnapshotRetriever_CameraThumbnailProduced;
snapshotting.Remove(snapper);
if (!e.Cancelled)
{
OnCameraThumbnailProduced(e);
}
}
public override ICaptureSource CreateCaptureSource(CameraSummary summary)
{
SnapshotRetriever snapper = snapshotting.FirstOrDefault(s => s.Identifier == summary.Identifier);
if (snapper != null)
{
snapper.Cancel();
snapper.Thread.Join(500);
if (snapper.Thread.IsAlive)
{
snapper.Thread.Abort();
}
snapper.CameraThumbnailProduced -= SnapshotRetriever_CameraThumbnailProduced;
snapshotting.Remove(snapper);
}
string moniker = summary.Identifier;
FrameGrabber grabber = new FrameGrabber(summary, moniker);
return(grabber);
}
