public uint GetSegmentFromFragment(uint fragN)
{
if (segmentRunTables.Count == 0)
{
return(1);
}
if (!live)
{
SegmentFragmentPair firstSegment = GetFirstSegment();
if (firstSegment == null)
{
return(1);
}
uint segNum = firstSegment.firstSegment;
foreach (var tab in segmentRunTables)
{
foreach (var s in tab.segmentFragmentPairs)
{
if ((segNum >= s.firstSegment) && (fragN < (s.fragmentsAccrued + s.fragmentsPerSegment)))
{
return(segNum);
}
}
}
}
return(GetLastSegment().firstSegment);
}
public uint totalFragments()
{
if (segmentFragmentPairs.Count < 1)
{
return(0);
}
SegmentFragmentPair sfp = segmentFragmentPairs[segmentFragmentPairs.Count - 1];
return(sfp.fragmentsPerSegment + sfp.fragmentsAccrued);
}
/// <summary>
/// Adds the given SegmentFragmentPair to this run table.
/// </summary>
private void addSegmentFragmentPair(SegmentFragmentPair sfp)
{
SegmentFragmentPair prevSfp = segmentFragmentPairs.Count <= 0 ? null : segmentFragmentPairs[segmentFragmentPairs.Count - 1];
uint fragmentsAccrued = 0;
if (prevSfp != null)
{
fragmentsAccrued = prevSfp.fragmentsAccrued + (sfp.firstSegment - prevSfp.firstSegment) * prevSfp.fragmentsPerSegment;
}
sfp.fragmentsAccrued = fragmentsAccrued;
segmentFragmentPairs.Add(sfp);
}
///<summary>The total number of fragments in the movie.</summary>
public uint GetFragmentsCount()
{
AdobeFragmentRunTable lastFragmentTable = fragmentRunTables[fragmentRunTables.Count - 1];
List <FragmentDurationPair> fdps = lastFragmentTable.fragmentDurationPairs;
if (fdps.Count < 1)
{
SegmentFragmentPair lastSegment = GetLastSegment();
return(lastSegment.fragmentsAccrued + lastSegment.fragmentsPerSegment - 1);
}
FragmentDurationPair lastValidFdp = fdps[fdps.Count - 1];
if (lastValidFdp.duration == 0)
{
lastValidFdp = fdps[fdps.Count - 2];
}
int deltaTime = (int)(currentMediaTime - lastValidFdp.durationAccrued);
uint fragCount = (uint)((deltaTime <= lastValidFdp.duration) ? 1 : (deltaTime / lastValidFdp.duration));
return(lastValidFdp.firstFragment + fragCount - 1);
}
private uint calculateSegmentId(SegmentFragmentPair sfp, uint fragmentId)
{
return(sfp.firstSegment + ((fragmentId - sfp.fragmentsAccrued - 1) / sfp.fragmentsPerSegment));
}
