/// <summary>
/// Get next audio/video frame from input
/// </summary>
/// <returns>Frame buffer for next audio and video frame. NULL if end of file</returns>
public FrameBuffer NextFrame()
{
frame.SampleTime = (long)(timestampSec * TICKS_PER_SECOND);
bool haveVideoBuffer = false;
bool haveAudioBuffer;
if (videoFrameReader != null && videoFrameReader.Read())
{
frame.VideoBuffer = videoFrameReader.GetFrame();
haveVideoBuffer = (frame.VideoBuffer != null);
}
haveAudioBuffer = wavFile.NextSample(frame.AudioBuffer);
timestampSec += frameDurationSec;
return((haveVideoBuffer || haveAudioBuffer) ? frame : null);
}
public static Bitmap GetFrame(string videoPath, double frameTime)
{
using (var videoFrameReader = new VideoFrameReader(videoPath))
{
if (frameTime > 0)
{
videoFrameReader.Seek(frameTime);
}
//videoFrameReader.SetFrameWidth(300);
if (videoFrameReader.Read())
{
return(videoFrameReader.GetFrame());
}
return(GetErrorFrame(videoFrameReader.Width, videoFrameReader.Height, "Reading frame failed"));
}
}
private void btnGenerateFrame_Click(object sender, EventArgs e)
{
//string path = @"F:\Grapics\video.mp4";
string path = txtSource.Text; //Get video path from source path
using (var videoFrameReader = new VideoFrameReader(path))
{
if (videoFrameReader.Read()) //Only if frame was read successfully
{
var resultCount = videoFrameReader.FrameRate * videoFrameReader.Duration.TotalSeconds;
progressBar.Maximum = (int)resultCount; // set maximum value of progress bar
int i = 1;
foreach (var frame in videoFrameReader)
{
progressBar.Value += 1; // increement progess bar value
using (frame) //save generated frame
{
frame.Save(@$ "F:\Grapics\Frame\Frame{i}.jpg", ImageFormat.Jpeg);
