|
public ProcessFrame ( Byte>.Image |
||
| frame | Byte>.Image | |
| return | void | |
void Time()
{
var snake = new Snake {
Ang = 0
};
var now = DateTimeOffset.Now.ToUnixTimeMilliseconds();
var frames = new List <SlitherFrame>();
frames.Add(new SlitherFrame {
Kills = 0, Time = now
});
frames.Add(new SlitherFrame {
Kills = 1, Time = now + 1000, Snake = snake
});
frames.Add(new SlitherFrame {
Kills = 2, Time = now + 2000, Snake = snake
});
frames.Add(new SlitherFrame {
Kills = 3, Time = now + 3000, Snake = snake
});
frames.Add(new SlitherFrame {
Kills = 4, Time = now + 4000, Snake = snake
});
frames.Add(new SlitherFrame {
Kills = 5, Time = now + 5000, Snake = snake
});
var processedFrame = _frameProcessor.ProcessFrame(frames, 2);
Assert.Equal(now + 2000, processedFrame.Time);
}
private void NewFrameHandler(object sender, AForge.Video.NewFrameEventArgs eventArgs)
{
if (frameProcessor.IsProcessing)
{
return;
}
var newFrame = frameProcessor.ProcessFrame(eventArgs.Frame);
ImageBox.Image = newFrame;
ImageBox.Width = newFrame.Width;
ImageBox.Height = newFrame.Height;
}
public static void ReadVideo(Config config, FFProbeStream streamInfo, string filePath, string outPath)
{
var p = new Process();
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.FileName = "ffmpeg.exe";
p.StartInfo.Arguments = $"-i \"{filePath}\" -f rawvideo -c:v rawvideo -pix_fmt bgra -s {streamInfo.Width}x{streamInfo.Height} pipe:1";
var f = 0;
var frameLength = streamInfo.Width * streamInfo.Height * 4;
var buffer = new byte[config.Model.BufferSize];
p.Start();
var stream = p.StandardOutput.BaseStream;
using var frame = new MemoryStream(frameLength);
var frameTasks = new List <Task>();
var frameBytesRead = 0;
var bytesRead = 0;
do
{
while (frameTasks.Count >= config.Model.FrameConcurrency)
{
var removeTasks = new List <Task>();
foreach (var task in frameTasks)
{
if (task.IsCompleted)
{
removeTasks.Add(task);
}
}
foreach (var r in removeTasks)
{
frameTasks.Remove(r);
}
}
if (frameBytesRead + config.Model.BufferSize > frameLength)
{
bytesRead = stream.Read(buffer, 0, frameLength - frameBytesRead);
frame.Write(buffer);
var frameProcessStream = new MemoryStream(frameLength);
frame.Seek(0, SeekOrigin.Begin);
frame.CopyTo(frameProcessStream);
frameTasks.Add(FrameProcessor.ProcessFrame(config, frameProcessStream, f++, streamInfo.Width, streamInfo.Height, outPath));
frame.Seek(0, SeekOrigin.Begin);
frameBytesRead = 0;
}
else
{
bytesRead = stream.Read(buffer, 0, buffer.Length);
if (bytesRead != 0)
{
frameBytesRead += bytesRead;
frame.Write(buffer);
}
}
} while (!p.HasExited);
p.WaitForExit();
}
