public void MethodsTest()
{
CMTime v, w, x, y;
v = new CMTime(1, 2);
w = new CMTime(1, 2);
x = new CMTime(2, 1);
y = new CMTime(2, 2);
// equality operators
Assert.That(v == w, "Equality #1");
Assert.That(!(v == x), "Equality #2");
Assert.That(v != x, "Inequality #1");
Assert.That(!(v != w), "Inequality #2");
Assert.That(CMTime.Compare(v, w), Is.EqualTo(0), "Compare #1");
Assert.That(CMTime.Compare(v, x) != 0, "Compare #2");
Assert.That(v.Equals(w), "Equals #1");
Assert.That(!x.Equals(v), "Equals #2");
// addition operator
Assert.That(v + w == new CMTime(2, 2), "Addition #1");
Assert.That(CMTime.Add(v, w) == new CMTime(2, 2), "Addition #2");
// subtraction operator
Assert.That(v - w == new CMTime(0, 2), "Subtraction #1");
Assert.That(CMTime.Subtract(v, w) == new CMTime(0, 2), "Subtraction #2");
// multiplication operators
Assert.That(v * 2 == new CMTime(2, 2), "Multiplication * int, #1");
Assert.That(CMTime.Multiply(v, 3) == new CMTime(3, 2), "Multiplication * int, #2");
Assert.That(v * 4.0 == new CMTime(4, 2), "Multiplication * double, #1");
Assert.That(CMTime.Multiply(v, 5.0) == new CMTime(5, 2), "Multiplication * double, #2");
// ConvertScale
Assert.That(new CMTime(10, 2).ConvertScale(1, CMTimeRoundingMethod.Default) == new CMTime(5, 1), "ConvertScale #1");
// FromSeconds
Assert.That(CMTime.FromSeconds(20, 1) == new CMTime(20, 1), "FromSeconds #1");
// GetMaximum
Assert.That(CMTime.GetMaximum(v, y) == y, "GetMaximum #1");
// GetMinimum
Assert.That(CMTime.GetMinimum(v, y) == v, "GetMinimum #1");
#if XAMCORE_2_0
using (var d = x.ToDictionary()) {
Assert.That(d.RetainCount, Is.EqualTo((nint)1), "RetainCount");
Assert.That(d.Count, Is.EqualTo((nuint)4), "Count");
var time = CMTime.FromDictionary(d);
Assert.That(time, Is.EqualTo(x), "FromDictionary");
}
#endif
}
public double HorizontalPositionForTime(CMTime time)
{
double seconds = 0.0;
if (CMTime.Compare(time, CMTime.Zero) == 1)
{
seconds = time.Seconds;
}
return(seconds * scaledDurationToWidth + LeftInsetToMatchTimeSlider + LeftMarginInset);
}
private void ProcessVideoComposition(AVMutableVideoComposition videoComposition)
{
var stages = new List <APLVideoCompositionStageInfo> ();
foreach (AVVideoCompositionInstruction instruction in videoComposition.Instructions)
{
var stage = new APLVideoCompositionStageInfo();
stage.TimeRange = instruction.TimeRange;
var rampsDictionary = new Dictionary <string, List <CGPoint> > ();
var layerNames = new List <string> ();
foreach (AVVideoCompositionLayerInstruction layerInstruction in instruction.LayerInstructions)
{
var ramp = new List <CGPoint> ();
CMTime startTime = CMTime.Zero;
float startOpacity = 1f;
float endOpacity = 1f;
CMTimeRange timeRange = new CMTimeRange();
while (layerInstruction.GetOpacityRamp(startTime, ref startOpacity, ref endOpacity, ref timeRange))
{
if (CMTime.Compare(startTime, CMTime.Zero) == 0 &&
CMTime.Compare(timeRange.Start, CMTime.Zero) == 1)
{
ramp.Add(new CGPoint((float)timeRange.Start.Seconds, startOpacity));
}
CMTime endTime = CMTime.Add(timeRange.Start, timeRange.Duration);
ramp.Add(new CGPoint((float)endTime.Seconds, endOpacity));
startTime = CMTime.Add(timeRange.Start, timeRange.Duration);
}
NSString name = new NSString(layerInstruction.TrackID.ToString());
layerNames.Add(name);
rampsDictionary [name] = ramp;
}
if (layerNames.Count > 1)
{
stage.OpacityRamps = rampsDictionary;
}
stage.LayerNames = layerNames;
stages.Add(stage);
}
videoCompositionStages = stages;
}
public void CalculateFramerateAtTimestamp(CMTime timeStamp)
{
previousSecondTimestamps.Add(timeStamp);
var oneSecond = CMTime.FromSeconds(1, 1);
var oneSecondAgo = CMTime.Subtract(timeStamp, oneSecond);
while (previousSecondTimestamps.Count > 0 && CMTime.Compare(previousSecondTimestamps[0], oneSecondAgo) < 0)
{
previousSecondTimestamps.RemoveAt(0);
}
double newRate = Convert.ToDouble(previousSecondTimestamps.Count);
VideoFrameRate = (VideoFrameRate + newRate) / 2;
}
private void ProcessAudioMix(AVMutableAudioMix audioMix)
{
var mixTracks = new List <List <CGPoint> > ();
foreach (AVAudioMixInputParameters input in audioMix.InputParameters)
{
List <CGPoint> ramp = new List <CGPoint> ();
CMTime startTime = CMTime.Zero;
float startVolume = 1f;
float endVolume = 1f;
CMTimeRange timeRange = new CMTimeRange();
while (input.GetVolumeRamp(startTime, ref startVolume, ref endVolume, ref timeRange))
{
if (CMTime.Compare(startTime, CMTime.Zero) == 0 &&
CMTime.Compare(timeRange.Start, CMTime.Zero) == 1)
{
ramp.Add(new CGPoint(0f, 1f));
ramp.Add(new CGPoint((float)timeRange.Start.Seconds, startVolume));
}
ramp.Add(new CGPoint((float)timeRange.Start.Seconds, startVolume));
CMTime endTime = CMTime.Add(timeRange.Start, timeRange.Duration);
ramp.Add(new CGPoint((float)endTime.Seconds, endVolume));
startTime = CMTime.Add(timeRange.Start, timeRange.Duration);
}
if (CMTime.Compare(startTime, duration) == -1)
{
ramp.Add(new CGPoint((float)duration.Seconds, endVolume));
}
mixTracks.Add(ramp);
}
audioMixTracks = mixTracks;
}