private bool OpenConverter(bool first)
{
try
{
mConverter = new CAVConverter();
}
catch (System.Runtime.InteropServices.COMException ex)
{
if (first)
{
if (ex.ErrorCode == -2147221164)
{
if (!RegisterCAVEditLib())
{
return(false);
}
return(OpenConverter(false));
}
else
{
richTextBoxLog.Text += "\r\n";
richTextBoxLog.Text += "*** " + ex.Message;
richTextBoxLog.Text += "\r\n";
return(false);
}
}
else
{
richTextBoxLog.Text += "\r\n";
richTextBoxLog.Text += "*** " + ex.Message;
richTextBoxLog.Text += "\r\n";
return(false);
}
}
return(true);
}
public void SetConverter(ICAVConverter Converter)
{
ClearFrameView();
mConverter = Converter;
richTextBoxMediaInfo.Text = mConverter.AVPrope.FileInfoText;
// NOTICE: this demo application only shows first video stream &&/or first audio stream.
mVideoStreamIndex = mConverter.AVPrope.FirstVideoStreamIndex;
mAudioStreamIndex = mConverter.AVPrope.FirstAudioStreamIndex;
// whether we can seek or not
trackBarPreview.Enabled = (mConverter.AVPrope.FileStreamInfo.Duration != (long)AV_NOPTS_VALUE) && (mConverter.AVPrope.FormatName != "image2");
// file duration
if (mConverter.AVPrope.FileStreamInfo.Duration != (long)AV_NOPTS_VALUE)
mDuration = mConverter.AVPrope.FileStreamInfo.Duration;
// calculate Frames of the first video stream, use it for the track bar max position
if ((mConverter.AVPrope.VideoStreamCount > 0) && (mConverter.AVPrope.FirstVideoStreamInfo.FrameRate.den > 0))
{
if (mConverter.AVPrope.FirstVideoStreamInfo.DurationScaled > 0)
mFrames = (int)Math.Round((double)mConverter.AVPrope.FirstVideoStreamInfo.DurationScaled / AV_TIME_BASE *
mConverter.AVPrope.FirstVideoStreamInfo.FrameRate.num / mConverter.AVPrope.FirstVideoStreamInfo.FrameRate.den);
else if (mConverter.AVPrope.FileStreamInfo.Duration != (long)AV_NOPTS_VALUE)
mFrames = (int)Math.Round((double)mConverter.AVPrope.FileStreamInfo.Duration / AV_TIME_BASE *
mConverter.AVPrope.FirstVideoStreamInfo.FrameRate.num / mConverter.AVPrope.FirstVideoStreamInfo.FrameRate.den);
}
else if (mConverter.AVPrope.FileStreamInfo.Duration != (long)AV_NOPTS_VALUE)
mFrames = (int)Math.Round((double)mConverter.AVPrope.FileStreamInfo.Duration / AV_TIME_BASE * 10);
// if video stream available, then read && draw the first frame
if (mConverter.AVPrope.VideoStreamCount > 0)
ReadAndDrawNextFrame();
// setup track bar for seeking
SetupTrackBar();
}
private bool OpenConverter(bool first)
{
try
{
mConverter = new CAVConverter();
}
catch (System.Runtime.InteropServices.COMException ex)
{
if (first)
{
if (ex.ErrorCode == -2147221164)
{
if (!RegisterCAVEditLib())
{
return false;
}
return OpenConverter(false);
}
else
{
richTextBoxLog.Text += "\r\n";
richTextBoxLog.Text += "*** " + ex.Message;
richTextBoxLog.Text += "\r\n";
return false;
}
}
else
{
richTextBoxLog.Text += "\r\n";
richTextBoxLog.Text += "*** " + ex.Message;
richTextBoxLog.Text += "\r\n";
return false;
}
}
return true;
}
