private KeyFrameResolver(IList keyFrames, TimeSpan duration, ISegmentLengthProvider segmentLengthProvider)
{
_frameCount = keyFrames?.Count ?? 0;
_keyFrames = new ResolvedKeyFrame <TKeyFrame> [_frameCount];
_duration = duration;
_segmentLengthProvider = segmentLengthProvider ?? throw new ArgumentNullException(nameof(segmentLengthProvider));
for (int i = 0; i < _frameCount; i++)
{
TKeyFrame currentFrame = (TKeyFrame)keyFrames[i];
_keyFrames[i] = new ResolvedKeyFrame <TKeyFrame>(currentFrame);
}
}
public static IReadOnlyList <ResolvedKeyFrame <TKeyFrame> > ResolveKeyFrames(
IList keyFrames, TimeSpan duration, ISegmentLengthProvider segmentLengthProvider)
{
if (keyFrames == null || keyFrames.Count == 0)
{
return(null);
}
var resolver = new KeyFrameResolver <TKeyFrame>(keyFrames, duration, segmentLengthProvider);
resolver.ResolveTimeSpanAndPercentKeyFrames();
resolver.ResolveLastKeyFrame();
resolver.ResolveFirstKeyFrame();
resolver.ResolveUniformKeyFrames();
resolver.ResolvePacedKeyFrames();
resolver.SortKeyFrames();
return(new ReadOnlyCollection <ResolvedKeyFrame <TKeyFrame> >(resolver._keyFrames));
}
