Added the ComplexMedia type and the possibility to use -filter_complex and -map features. Added some built-in complex filters. Added the unit and functional tests of the new features. README.md has been updated.

src/FFMpeg/FFMpeg.php

@@ -16,6 +16,7 @@ use FFMpeg\Driver\FFMpegDriver;
 use FFMpeg\Exception\InvalidArgumentException;
 use FFMpeg\Exception\RuntimeException;
 use FFMpeg\Media\Audio;
+use FFMpeg\Media\ComplexMedia;
 use FFMpeg\Media\Video;
 use Psr\Log\LoggerInterface;
 
@@ -102,6 +103,18 @@ class FFMpeg
         throw new InvalidArgumentException('Unable to detect file format, only audio and video supported');
     }
 
+    /**
+     * Opens multiple input sources.
+     *
+     * @param string[] $inputs Array of files to be opened.
+     *
+     * @return ComplexMedia
+     */
+    public function openComplex($inputs)
+    {
+        return new ComplexMedia($inputs, $this->driver, $this->ffprobe);
+    }
+
     /**
      * Creates a new FFMpeg instance.
      *