static void Main(string[] args)
{
var sw = new Stopwatch();
sw.Start();
var file = args.Length != 0 ? args[0] : @"2018030321470048.mp4";
var video = new VideoCapture(file);
var srcFrame = new Mat();
var binFrame = new Mat();
var list = new System.Collections.Generic.List <Tuple <TimeSpan, TimeSpan> >();
var prevStart = new TimeSpan();
var pos = TimeSpan.Zero;
while (true)
{
var nextPos = pos + Params.giantStep;
CvUtil.GetFrame(video, pos, srcFrame);
if (srcFrame.Empty())
{
break;
}
CvUtil.Binarize(srcFrame, 7, binFrame);
if (Params.GameStartTemplate.Match(binFrame))
{
var se = Params.GameStartTemplate.FindMatchBoundary(video, pos);
var start = se.Item1;
var end = se.Item2;
Console.WriteLine($"{start}: game starts");
nextPos = end + Params.babyStep;
prevStart = start;
}
else if (Params.GameEndTemlate.Match(binFrame))
{
var se = Params.GameEndTemlate.FindMatchBoundary(video, pos);
var end = se.Item2;
Console.WriteLine($"${end}: game ends");
nextPos = end + Params.babyStep;
FfMpegUtil.Cut(prevStart, end, "out");
prevStart = new TimeSpan();
}
pos = nextPos;
}
Console.WriteLine(sw.Elapsed);
}
private TimeSpan FindMatchEnd(VideoCapture video, TimeSpan from)
{
var m = from;
while (true)
{
var tryTime = m + Params.babyStep;
if (tryTime >= TimeSpan.FromSeconds(video.FrameCount / video.Fps))
{
break;
}
CvUtil.GetFrame(video, tryTime, searchFrame);
CvUtil.Binarize(searchFrame, 7, searchBinFrame);
if (!Match(searchBinFrame))
{
break;
}
m = tryTime;
}
return(m);
}
private TimeSpan FindMatchStart(VideoCapture video, TimeSpan from)
{
var m = from;
while (true)
{
var tryTime = m - Params.babyStep;
if (tryTime < TimeSpan.Zero)
{
break;
}
CvUtil.GetFrame(video, tryTime, searchFrame);
CvUtil.Binarize(searchFrame, 7, searchBinFrame);
if (!Match(searchBinFrame))
{
break;
}
m = tryTime;
}
return(m);
}
