public NDIRender(CancellationToken cancellationToken, NDIConfig config, Font font)
{
this.cancellationToken = cancellationToken;
// We are going to create a 1920x180 frame at 50p, progressive (default).
this.videoFrame = new VideoFrame(config.NDI_width, config.NDI_height, config.aspectRatio, config.frameRateNumerator, config.frameRateDenominator);
bmp = new Bitmap(videoFrame.Width, videoFrame.Height, videoFrame.Stride,
System.Drawing.Imaging.PixelFormat.Format32bppArgb, videoFrame.BufferPtr);
graphics = Graphics.FromImage(bmp);
graphics.SmoothingMode = SmoothingMode.AntiAlias;
// NDI Renderer
program = SubTitle.Empty;
fading = SubTitle.Empty;
// Style
defaultBrush = new SolidBrush(config.Default_Color);
this.font = font;
// Fade Setting
isFading = false;
// For delta_X, We plus delta_X into alpha
// Fade Effect will last for 500ms
// So every frame it will change 255/(50frames/2steps) = 10
delta_X = Alpha_Max / (config.frameRateNumerator / config.frameRateDenominator) * 2;
// If Fading_X < Alpha_Max / 2 ,it's the former part (from program to empty)
// If Fading_X >= Alpha_Max / 2 ,it's the latter part (from empty to fading )
// If Fading_X >= Alpha_Max ,it means fade ends (set program as fading)
Fading_X = 0;
}
public static NDIConfig ReadNDIConfig(JObject jo)
{
try
{
NDIConfig config = new NDIConfig();
config.NDI_width = Convert.ToInt32(jo["NDI_width"].ToString());
config.NDI_height = Convert.ToInt32(jo["NDI_height"].ToString());
config.aspectRatio = Convert.ToSingle(config.NDI_width) / Convert.ToSingle(config.NDI_height);
config.frameRateNumerator = Convert.ToInt32(jo["frameRateNumerator"].ToString());
config.frameRateDenominator = Convert.ToInt32(jo["frameRateDenominator"].ToString());
config.Point_Sub1 = new Point(Convert.ToInt32(jo["Point1_X"].ToString()), Convert.ToInt32(jo["Point1_Y"].ToString()));
config.Point_Sub2 = new Point(Convert.ToInt32(jo["Point2_X"].ToString()), Convert.ToInt32(jo["Point2_Y"].ToString()));
if (jo.ContainsKey("Color_Name"))
{
config.Default_Color = Color.FromName(jo["Color_Name"].ToString());
}
else
{
config.Default_Color = Color.FromArgb(Convert.ToInt32(jo["Color"]["alpha"].ToString()),
Convert.ToInt32(jo["Color"]["red"].ToString()),
Convert.ToInt32(jo["Color"]["green"].ToString()),
Convert.ToInt32(jo["Color"]["blue"].ToString()));
}
config.Fade_Time = Convert.ToInt32(jo["Fade_Time"].ToString());
return(config);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
return(new NDIConfig(true));//Return Default Setting
}
}
private void Form1_Load(object sender, EventArgs e)
{
// Init Fonts
using (InstalledFontCollection fontsCollection = new InstalledFontCollection())
{
FontFamily[] fontFamilies = fontsCollection.Families;
List <string> fonts = new List <string>();
foreach (FontFamily font in fontFamilies)
{
cmb_Fonts.Items.Add(font.Name);
}
}
cmb_Fonts.SelectedIndex = 1;
// Read Config
var config_path = Path.Combine(Directory.GetCurrentDirectory(), "NDI-SubTitle.config");
try
{
Config = JObject.Parse(File.ReadAllText(config_path));
if (Config.ContainsKey("NDI"))
{
NDI_Config = NDIConfig.ReadNDIConfig(Config["NDI"] as JObject);
}
else
{
NDI_Config = new NDIConfig(true);
}
if (Config.ContainsKey("Font-Size"))
{
Font_Size = Convert.ToSingle(Config["Font-Size"].ToString());
}
else
{
Font_Size = 50;
}
}
catch (Exception ex)
{
Console.WriteLine("Reading Config File Failed");
Console.WriteLine(ex.ToString());
NDI_Config = new NDIConfig(true);
Font_Size = 50;
}
}
