/// <summary>
/// Close the input file. Once closed, NextFrame cannot be used
/// </summary>
public void Close()
{
if (wavFile != null)
{
wavFile.Close();
wavFile = null;
//DeleteExistingFile(wavFilePath);
}
if (videoFrameReader != null)
{
videoFrameReader.Dispose();
videoFrameReader = null;
}
}
public VideoModel GetVideoFrames(byte[] videoBytes)
{
Bitmap fr;
videoModel.Images = new List <string>();
//create the frame reader
using (MemoryStream ms = new MemoryStream(videoBytes))
using (videoFrameReader = new VideoFrameReader(ms))
{
//if video too big
if (videoFrameReader.Duration.TotalSeconds > 30)
{
return(null);
}
else
{
//calculating number of frames as fps/framerate*duration
videoModel.FrameRate = (int)Math.Ceiling(videoFrameReader.FrameRate);
// var totalFrames = videoFrameReader.Duration.TotalSeconds * fps;
//looping through all the frames
foreach (var frame in videoFrameReader)
{
//for this frame
using (frame)
{
//detect if there is motion
fr = DetectMotion(motionDetector, frame);
//if there is motion get image bytes, convert it to base64 string and add it to list
if (fr != null)
{
var bytes = GetImageBytes(fr);
var base64Frame = Convert.ToBase64String(bytes);
videoModel.Images.Add(base64Frame);
}
//if there isn't motion get the byte array of frame, convert it to base 64 and add it to list
else
{
var bytes = GetImageBytes(frame);
var base64Frame = Convert.ToBase64String(bytes);
videoModel.Images.Add(base64Frame);
}
}
}
}
videoFrameReader.Dispose();
return(videoModel);
}
}