Merge branch 'master' of https://github.com/guimeira/PHP-FFmpeg into guimeira-master

README.md

@@ -175,6 +175,19 @@ filters solves this issue.
 $video->filters()->synchronize();
 ```
 
+###### Clip
+
+Cuts the video at a desired point.
+
+```php
+$video->filters()->clip(FFMpeg\Coordinate\TimeCode::fromSeconds(30), FFMpeg\Coordinate\TimeCode::fromSeconds(15));
+```
+
+The clip filter takes two parameters:
+
+- `$start`, an instance of `FFMpeg\Coordinate\TimeCode`, specifies the start point of the clip
+- `$duration`, optional, an instance of `FFMpeg\Coordinate\TimeCode`, specifies the duration of the clip
+
 #### Audio
 
 `FFMpeg\Media\Audio` can be transcoded, ie : change codec, isolate audio or

src/FFMpeg/Filters/Video/ClipFilter.php

@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * This file is part of PHP-FFmpeg.
+ *
+ * (c) Alchemy <dev.team@alchemy.fr>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FFMpeg\Filters\Video;
+
+use FFMpeg\Format\VideoInterface;
+use FFMpeg\Media\Video;
+use FFMpeg\Coordinate\TimeCode;
+
+class ClipFilter implements VideoFilterInterface
+{
+    /** @var TimeCode */
+    private $start;
+    /** @var TimeCode */
+    private $duration;
+    /** @var integer */
+    private $priority;
+
+    public function __construct(TimeCode $start, TimeCode $duration = null, $priority = 0)
+    {
+        $this->start = $start;
+        $this->duration = $duration;
+        $this->priority = $priority;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPriority()
+    {
+        return $this->priority;
+    }
+
+    /**
+     * @return TimeCode
+     */
+    public function getStart()
+    {
+        return $this->start;
+    }
+
+    /**
+     * @return TimeCode
+     */
+    public function getDuration()
+    {
+        return $this->duration;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function apply(Video $video, VideoInterface $format)
+    {
+        $commands = array('-ss', (string) $this->start);
+
+        if ($this->duration !== null) {
+          $commands[] = '-t';
+          $commands[] = (string) $this->duration;
+        }
+
+        return $commands;
+    }
+}

src/FFMpeg/Filters/Video/VideoFilters.php

@@ -67,6 +67,21 @@ class VideoFilters extends AudioFilters
         return $this;
     }
 
+    /**
+     * Clips (cuts) the video.
+     *
+     * @param TimeCode $start
+     * @param TimeCode $duration
+     *
+     * @return VideoFilters
+     */
+    public function clip($start, $duration = null)
+    {
+        $this->media->addFilter(new ClipFilter($start, $duration));
+
+        return $this;
+    }
+
     /**
      * Resamples the audio file.
      *