sleep.cs

        const string AudioStream = "Audio";
        const string VideoStream = "Video";
        static int Width = 1280, Height = 720, FPS = 60;
        public static void StartStream()
        {
            Check(GenvidSDK.Initialize());

            Check(GenvidSDK.CreateStream(AudioStream));
            Check(GenvidSDK.SetParameter(AudioStream, "Audio.Source.WASAPI", 1));

            Check(GenvidSDK.CreateStream(VideoStream));
            Check(GenvidSDK.SetParameter(VideoStream, "framerate", FPS));
            Check(GenvidSDK.SetParameter(VideoStream, "video.width", Width));
            Check(GenvidSDK.SetParameter(VideoStream, "video.height", Height));
            Check(GenvidSDK.SetParameter(VideoStream, "video.pixel_format", (int)GenvidSDK.PixelFormat.R8G8B8));

            byte[] data = new byte[Width * Height * 3];
            for (int x = 0; x < data.Length; x += 3)
            {
                data[x + 0] = 255;
                data[x + 1] = 0;
                data[x + 2] = 128;
            }

            Stopwatch watch = new Stopwatch();
            watch.Start();
            var nextFrame = 0.0;
            while (true)
            {
                while (watch.Elapsed.TotalMilliseconds > nextFrame)
                    nextFrame += (1000.0 / FPS);

                int toSleep = Math.Max(0, (int)(nextFrame - watch.ElapsedMilliseconds));

                var ts1 = watch.ElapsedMilliseconds;
                Thread.Sleep(toSleep);
                var ts2 = watch.ElapsedMilliseconds;

                if (ts2 - ts1 > 16)
                    Console.WriteLine("Sleep took {0}ms", ts2 - ts1);

                var t1 = watch.ElapsedMilliseconds;
                Check(GenvidSDK.SubmitVideoData(-1, VideoStream, data));
                var t2 = watch.ElapsedMilliseconds;

                if (t2 - t1 > 16)
                    Console.WriteLine("SubmitVideoData took {0}ms", t2 - t1);
            }
        }

        private static void Check(GenvidSDK.Status result)
        {
            if (result != GenvidSDK.Status.Success)
                throw new Exception(string.Format("Genvid error: ({0}): {1}", (int)result, result));
        }

sleep.cs.output

SubmitVideoData took 33ms
Sleep took 19ms
SubmitVideoData took 21ms
Sleep took 17ms
Sleep took 18ms
SubmitVideoData took 17ms
Sleep took 18ms
SubmitVideoData took 19ms
SubmitVideoData took 18ms
SubmitVideoData took 26ms
SubmitVideoData took 17ms
SubmitVideoData took 40ms
SubmitVideoData took 32ms
SubmitVideoData took 21ms
Sleep took 19ms
SubmitVideoData took 21ms
Sleep took 37ms
SubmitVideoData took 18ms
SubmitVideoData took 30ms
Sleep took 19ms
Sleep took 17ms
SubmitVideoData took 19ms
Sleep took 17ms
SubmitVideoData took 26ms
Sleep took 28ms
SubmitVideoData took 20ms
SubmitVideoData took 19ms
SubmitVideoData took 21ms
SubmitVideoData took 17ms
Sleep took 28ms