public bool Close()
{
if (mFileVS != null)
{
mVSConfig.SystemContext.VideoSourceManager.Close(mFileVS.Name);
mFileVS = null;
return(true);
}
return(false);
}
public bool Open()
{
if (mFileVS == null)
{
mFileVS = mVSConfig.SystemContext.VideoSourceManager.Open(mVSConfig, pictureBox_view.Handle) as IFileVideoSource;
if (mFileVS != null)
{
mFileVS.OnFilePlayState += new FilePlayStateEvent(DoFilePlayState);
FileInfo fi = new FileInfo(mVSConfig.FileName);
label_fileName.Text = string.Format("{0}{1}", Desc, fi.Name);
return(true);
}
}
return(false);
}
private void DoPlayStatusChanged(IMonitorSystemContext context, string vsName, VideoSourceState vsStatus, PlayState playStatus)
{
if (mVSConfig.Name.Equals(vsName))
{
IFileVideoSource vs = context.VideoSourceManager.GetVideoSource(vsName) as IFileVideoSource;
switch (playStatus)
{
case PlayState.Open:
if (vs != null)
{
InitPlayProgress((int)vs.TotalFrame);
}
button_open.Text = "关闭";
button_play.Text = "播放";
button_play.Enabled = true;
button_playFrame.Enabled = true;
button_getFrame.Enabled = true;
break;
case PlayState.Play:
button_play.Text = "暂停";
break;
case PlayState.Stop:
button_play.Text = "播放";
break;
case PlayState.Close:
button_open.Text = "打开";
button_play.Text = "播放";
button_play.Enabled = false;
button_playFrame.Enabled = false;
button_getFrame.Enabled = false;
label_fileName.Text = string.Format("{0}未打开文件", Desc);
label_totalTime.Text = "0:00:00";
label_curTime.Text = "0:00:00";
progressBar_play.Value = 0;
break;
}
if (OnPlayStatusChanged != null)
{
OnPlayStatusChanged(context, vsName, vsStatus, playStatus);
}
}
}
private void DoFilePlayState(IFileVideoSource vs, long frame)
{
RefreshPlayProgress((int)frame);
}
