public int ReadFrameHeader()
{
if (_FirstFrameTimestamp == -1)
{
_FirstFrameTimestamp = ManagedStopwatch.GetTimestamp();
}
if (_NextFrameLength == -1)
{
_NextFrameLength = ReadNextFrameLength();
}
var frameLength = _NextFrameLength;
_NextFrameLength = -1;
_StreamPosition += frameLength;
return(frameLength);
}
public long WaitForFrameTimestamp(int clockRate)
{
var elapsedTicks = ManagedStopwatch.GetTimestamp() - _FirstFrameTimestamp;
var nanoTimestamp = (_ClusterTimecode + _ClusterBlockTimecode) * _SegmentInfo.TimecodeScale;
var tickTimestamp = nanoTimestamp / 100;
if (tickTimestamp > elapsedTicks)
{
// hold up
ManagedThread.Sleep((int)((tickTimestamp - elapsedTicks) / Constants.TicksPerMillisecond));
}
_ClusterBlockTrackNumber = -1;
_ClusterBlockTimecode = -1;
_ClusterBlockFlags = 0;
return(clockRate * tickTimestamp / Constants.TicksPerSecond);
}