Add TimeCode::fromSeconds method

src/FFMpeg/Coordinate/TimeCode.php

@@ -63,4 +63,30 @@ class TimeCode
 
         return new static($hours, $minutes, $seconds, $frames);
     }
+
+    /**
+     * Creates timecode from number of seconds.
+     *
+     * @param float $seconds
+     *
+     * @return TimeCode
+     */
+    public static function fromSeconds($quantity)
+    {
+        $minutes = $hours = $frames = 0;
+
+        $frames = round(100 * ($quantity - floor($quantity)));
+        $seconds = floor($quantity);
+
+        if ($seconds > 59) {
+            $minutes = floor($seconds / 60);
+            $seconds = $seconds % 60;
+        }
+        if ($minutes > 59) {
+            $hours = floor($minutes / 60);
+            $minutes = $minutes % 60;
+        }
+
+        return new static($hours, $minutes, $seconds, $frames);
+    }
 }

tests/FFMpeg/Tests/Coordinate/TimeCodeTest.php

@@ -35,4 +35,26 @@ class TimeCodeTest extends TestCase
     {
         TimeCode::fromString('lalali lala');
     }
+
+    /**
+     * @dataProvider provideSeconds
+     */
+    public function testFromSeconds($seconds, $expected)
+    {
+        $tc = TimeCode::fromSeconds($seconds);
+        $this->assertEquals($expected, (string) $tc);
+    }
+
+    public function provideSeconds()
+    {
+        return array(
+            array(0.467,  '00:00:00.47'),
+            array(12.467, '00:00:12.47'),
+            array(59.867, '00:00:59.87'),
+            array(72.467, '00:01:12.47'),
+            array(3599.467, '00:59:59.47'),
+            array(3600.467, '01:00:00.47'),
+            array(86422.467, '24:00:22.47'),
+        );
+    }
 }