v1.5增加一个舵机控制前档，实现踢球效果。

v1.5/lib/FastLED/tests/test_frame_tracker.cpp

@@ -0,0 +1,27 @@
+
+
+// g++ --std=c++11 test.cpp
+
+#include "test.h"
+
+#include "test.h"
+#include "fx/frame.h"
+#include "fx/video/frame_tracker.h"
+#include "fl/namespace.h"
+
+#include "fl/namespace.h"
+FASTLED_USING_NAMESPACE
+
+TEST_CASE("FrameTracker basic frame advancement") {
+    FrameTracker tracker(1.0f);  // 1fps == 1000ms per frame
+    uint32_t currentFrame, nextFrame;
+    uint8_t amountOfNextFrame;
+    
+    //tracker.reset(1000);  // start at time 1000ms
+    
+    // Shift the time to 500 ms or 50% of the first frame
+    tracker.get_interval_frames(500, &currentFrame, &nextFrame, &amountOfNextFrame);
+    CHECK(currentFrame == 0);
+    CHECK(nextFrame == 1);
+    CHECK(amountOfNextFrame == 127);
+}