/// <summary>
/// Asynchronously streams a windows screen and audio capture to a specified IP-Address.
/// </summary>
/// <returns>The windows screen to ip async.</returns>
/// <param name="videoDeviceName">Video device name.</param>
/// <param name="audioDeviceName">Audio device name.</param>
/// <param name="ip">IP-Address.</param>
/// <param name="mode">Streaming mode.</param>
/// <param name="frameRate">Desired frame rate.</param>
/// <param name="quality">Quality of compression.</param>
public async Task<bool> StreamWindowsScreenToIpAsync (string videoDeviceName, string audioDeviceName, string ip, string port, VideoCodec vcodec, AudioCodec acodec, StreamingMode mode, int frameRate, Resolution outputSize, string videoExtras, int quality = 20)
{
// TODO: -b for bitrate
string input = string.Format (
"-f dshow -i video=\"{0}\":audio=\"{1}\" -r {2} -async 1 -vcodec {3} {4} -q {5} -s {6} -maxrate 750k -bufsize 3000k -acodec {7} -ab 128k",
videoDeviceName,
audioDeviceName,
frameRate.ToString(),
FFmpegManager.GetCodecName(vcodec),
videoExtras,
quality.ToString(),
outputSize,
FFmpegManager.GetCodecName(acodec)
);
string output = string.Format (
"-f mpegts udp://{0}:{1}?pkt_size=188?buffer_size=10000000?fifo_size=100000",
ip,
port
);
string args = input + " " + output;
try {
FFmpegProcess = FFmpegManager.GetFFmpegProcess(args);
}
catch(FileNotFoundException e) {
throw new FileNotFoundException (e.Message, e);
}
FFmpegProcess.Start ();
await Task.Run(() => FFmpegProcess.WaitForExit ());
return true;
}
/// <summary>
/// Captures the screen on linux systems.
/// </summary>
/// <param name="inputResolution">Input screen resolution.</param>
/// <param name="frameRate">Desired frame rate.</param>
public void CaptureLinuxScreen (Resolution inputResolution, int frameRate)
{
string args = string.Format("-video_size {0} -framerate {1} -f x11grab -i :0.0+100,200 -f alsa -ac 2 -i pulse output.flv", inputResolution, frameRate.ToString());
FFmpegProcess = FFmpegManager.RunFFmpegProcess(args);
FFmpegProcess.ErrorDataReceived += OnDataReceived;
}
/// <summary>
/// Streams the video to URL.
/// </summary>
/// <param name="url">URL.</param>
/// <param name="inputResolution">Input resolution.</param>
/// <param name="outputResolution">Output resolution.</param>
public void StreamVideoToUrl(string url, Resolution inputResolution, Resolution outputResolution)
{
// -preset ultrafast -tune zerolatency TODO: Checken!
string args =
string.Format(
"-f x11grab -s {0} -r 15 -i :0.0 -c:v libx264 -preset fast -pix_fmt yuv420p -s {1} -threads 0 -f flv \"{2}\"",
inputResolution, outputResolution, url
);
FFmpegProcess = FFmpegManager.RunFFmpegProcess(args);
FFmpegProcess.ErrorDataReceived += OnDataReceived;
}
