/// <summary>
/// When called will populate audioDevices and videoDevices with the machines available DirectShow audio and video devices.
/// </summary>
public void GetDirectShowDevices()
{
var f = new FFmpeg(ffmpegLocation);
f.Arguments = " -list_devices true -f dshow -i dummy";
ProcessDirectShowText(f.Start(true));
}
/// <summary>
/// Starts a screen stream based on the passed settings.
/// </summary>
/// <param name="settings"></param>
public void Stream(StreamSettings settings)
{
if (settings.ffmpegLocation != null)
{
settings.ffmpegLocation.Trim();
}
StringBuilder args = new StringBuilder();
if (settings.audioDevice != "" && settings.audioDevice != null)
{
args.Append("-f dshow -audio_buffer_size 80 -i audio=\"");
args.Append(settings.audioDevice);
args.Append("\" ");
}
args.Append("-f gdigrab -framerate ");
args.Append(settings.frameRate.ToString());
args.Append(" ");
if (settings.drawMouse)
{
args.Append(" -draw_mouse 1 ");
}
else
{
args.Append(" -draw_mouse 0 ");
}
if (settings.drawCaptureRegion)
{
args.Append(" -show_region 1 ");
}
switch (settings.recordingRegionType)
{
case RecordingRegionType.desktop:
args.Append(" -offset_x ");
args.Append(settings.offSetX);
args.Append(" -offset_y ");
args.Append(settings.offSetY);
if (settings.horizontalResolution != 0 && settings.verticalResolution != 0)
{
args.Append(" -video_size ");
args.Append(settings.horizontalResolution);
args.Append("x");
args.Append(settings.verticalResolution);
args.Append(" ");
}
args.Append("-i desktop -vf scale=trunc(in_w/2)*2:trunc(in_h/2)*2");
break;
case RecordingRegionType.window:
args.Append("-i title=\"");
args.Append(settings.windowTitle);
args.Append("\" -vf scale=trunc(in_w/2)*2:trunc(in_h/2)*2");
break;
}
args.Append(" -c:a aac -c:v libx264 -preset:v veryfast -pix_fmt yuv420p -force_key_frames ");
args.Append("00:02:00 ");
args.Append(" -b:v ");
args.Append(settings.videoBitrate);
args.Append("k");
args.Append(" -maxrate ");
args.Append(settings.videoBitrate);
args.Append("k");
args.Append(" -bufsize ");
args.Append(settings.videoBitrate * 2);
args.Append("k");
args.Append(" -f flv rtmp://");
args.Append(settings.twitchBroadcastURL);
args.Append("/app/");
args.Append(settings.twitchStreamKey);
ffmpeg = new FFmpeg(settings.ffmpegLocation);
ffmpeg.Arguments = args.ToString();
ffmpeg.Start(false);
}
/// <summary>
/// Starts a screen capture based on the passed settings.
/// </summary>
/// <param name="settings"></param>
public void Capture(CaptureSettings settings)
{
if (settings.saveLocation != null)
{
settings.saveLocation.Trim();
}
if (settings.fileName != null)
{
settings.fileName.Trim();
}
if (settings.ffmpegLocation != null)
{
settings.ffmpegLocation.Trim();
}
if (settings.saveLocation != null)
{
if (!settings.saveLocation.EndsWith("\\"))
{
settings.saveLocation += "\\";
}
}
StringBuilder args = new StringBuilder();
if (settings.audioDevice != "" && settings.audioDevice != null)
{
args.Append("-f dshow -audio_buffer_size 80 -i audio=\"");
args.Append(settings.audioDevice);
args.Append("\" ");
}
args.Append("-f gdigrab -framerate ");
args.Append(settings.frameRate.ToString());
args.Append(" ");
if (settings.drawMouse)
{
args.Append(" -draw_mouse 1 ");
}
else
{
args.Append(" -draw_mouse 0 ");
}
if (settings.drawCaptureRegion)
{
args.Append(" -show_region 1 ");
}
switch (settings.recordingRegionType)
{
case RecordingRegionType.desktop:
args.Append(" -offset_x ");
args.Append(settings.offSetX);
args.Append(" -offset_y ");
args.Append(settings.offSetY);
if (settings.horizontalResolution != 0 && settings.verticalResolution != 0)
{
args.Append(" -video_size ");
args.Append(settings.horizontalResolution);
args.Append("x");
args.Append(settings.verticalResolution);
args.Append(" ");
}
args.Append(" -i desktop -vf scale=trunc(in_w/2)*2:trunc(in_h/2)*2");
break;
case RecordingRegionType.window:
args.Append("-i title=\"");
args.Append(settings.windowTitle);
args.Append("\" -vf scale=trunc(in_w/2)*2:trunc(in_h/2)*2");
break;
}
args.Append(" -c:a aac -c:v libx264 -preset:v fast -pix_fmt yuv420p ");
if (settings.audioDevice != "" && settings.audioDevice != null)
{
args.Append(" -af \"aresample=async=1000\" ");
}
args.Append(settings.saveLocation);
args.Append(settings.fileName);
switch (settings.fileType)
{
case FileType.mp4:
args.Append(".mp4");
break;
}
if (settings.forceOutputFileOverwrite)
{
args.Append(" -y");
}
ffmpeg = new FFmpeg(settings.ffmpegLocation);
ffmpeg.Arguments = args.ToString();
ffmpeg.Start(false);
}
