From ca8eea7ec60f3f8a6e46961d964299c8a2c28ebd Mon Sep 17 00:00:00 2001
From: Romain Biard <romain@digitallift.fr>
Date: Wed, 11 Jan 2017 10:59:22 -0300
Subject: [PATCH] We fix the usage of

---
 src/FFMpeg/Filters/Video/ExtractMultipleFramesFilter.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/FFMpeg/Filters/Video/ExtractMultipleFramesFilter.php b/src/FFMpeg/Filters/Video/ExtractMultipleFramesFilter.php
index 2c4b9cb..bb26bc9 100644
--- a/src/FFMpeg/Filters/Video/ExtractMultipleFramesFilter.php
+++ b/src/FFMpeg/Filters/Video/ExtractMultipleFramesFilter.php
@@ -81,7 +81,7 @@ class ExtractMultipleFramesFilter implements VideoFilterInterface
 
         try {
             // Get the duration of the video
-            $duration = $this->getFormat()->get('duration');
+            $duration = $format()->get('duration');
 
             // Get the number of frames per second we have to extract.
             if(preg_match('/(\d+)(?:\s*)([\+\-\*\/])(?:\s*)(\d+)/', $this->frameRate, $matches) !== FALSE){