private void btnGo_Click( object sender, EventArgs e ) {
if ( _recorder.Recording ) {
_recorder.Stop();
SetR( false );
}
else {
SetR(true);
_settings = new RecordSettings(
outputPath: txtPath.Text,
captureRectangle: ( (ScreenInfo)cmbScreen.SelectedItem ).Rect,
fps: (int)nudFramerate.Value,
interval: (int)nudFreq.Value,
codec: (VideoCodec)cmbFormat.SelectedItem,
bitrate: (int)budBitrate.Value << 20,
splitInterval: chkSplit.Checked?(int?)(int)nudSplitInterval.Value :null,
onFrameWritten: (a)=>BeginInvoke( (Action)(()=>lblTime.Text = string.Format( "Elapsed :{0}", a.ToString("g") )) )
);
_recorder.Start(
_settings
);
}
}
private void StartInternal( RecordSettings settings ) {
try {
_stopwatch = _stopwatch ?? new Stopwatch();
_stopwatch.Reset();
_stopwatch.Start();
StopWaiter.Reset();
if ( !Directory.Exists( settings.OutputPath ) ) Directory.CreateDirectory( settings.OutputPath );
while ( Recording ) {
var outfile = Path.Combine( settings.OutputPath, DateTime.Now.ToFileTime().ToString() + ".avi" );
using (var outstream = new VideoFileWriter()) {
var sourceRect = settings.CaptureRectangle;
var w = sourceRect.Width;
var h = sourceRect.Height;
outstream.Open(
outfile,
w,
h,
settings.Fps,
settings.Codec,
settings.Bitrate );
var mpf = settings.SplitInterval * 60000 / settings.Interval;
using ( var bmp = new Bitmap( w, h ) ) {
using ( var gr = Graphics.FromImage( bmp ) ) {
for ( var i = 0; (mpf==null||i < mpf) && Recording; i++ ) {
try {
gr.CopyFromScreen( sourceRect.X, sourceRect.Y, 0, 0, sourceRect.Size );
PreprocessFrame( gr, settings );
gr.Flush();
outstream.WriteVideoFrame( bmp );
settings.OnFrameWritten?.Invoke( _stopwatch.Elapsed );
}
catch { }
Thread.Sleep( settings.Interval );
}
}
}
}
}
}
catch(Exception ex) {
//global
}
finally {
_stopwatch?.Stop();
StopWaiter.Set();
}
}
public void Start( RecordSettings settings ) {
var timer = new Timer();
if (Recording)
throw new InvalidOperationException("Recording is already started");
Recording = true;
new Thread( () => StartInternal(settings) ).Start();
}
private void PreprocessFrame( Graphics gr, RecordSettings settings ) {
if ( !settings.Private ) return;
gr.Clear( Color.Black );
gr.Flush();
}
