diff --git a/tests/integration.rs b/tests/integration.rs
index e00ac62..2a3cd7f 100644
--- a/tests/integration.rs
+++ b/tests/integration.rs
@@ -165,7 +165,10 @@ mod integration {
         );
 
         assert!(!res.contains("Non-monotonous DTS"));
-        assert!(get_video_info(&format!("data/{}/output.mp4", test_name)).contains("28 fps"));
+        assert_eq!(
+            get_video_fps(&format!("data/{}/output.mp4", test_name)),
+            "28/1"
+        );
         check_for_merged_file(test_name, "output.mp4");
     }
 
@@ -185,7 +188,10 @@ mod integration {
         );
 
         assert!(!res.contains("Non-monotonous DTS"));
-        assert!(get_video_info(&format!("data/{}/output.mp4", test_name)).contains("25 fps"));
+        assert_eq!(
+            get_video_fps(&format!("data/{}/output.mp4", test_name)),
+            "25/1"
+        );
         check_for_merged_file(test_name, "output.mp4");
     }
 
@@ -207,7 +213,10 @@ mod integration {
                 .success(),
         );
 
-        assert!(get_video_info(&format!("data/{}/output.mp4", test_name)).contains("60 fps"));
+        assert_eq!(
+            get_video_fps(&format!("data/{}/output.mp4", test_name)),
+            "60/1"
+        );
         check_for_merged_file(test_name, "output.mp4");
     }
 
@@ -265,8 +274,22 @@ mod integration {
             .unwrap();
     }
 
-    fn get_video_info(file_path: &str) -> String {
-        let output = Command::new("ffmpeg").arg("-i").arg(file_path).output();
-        String::from_utf8_lossy(&output.unwrap().stderr).to_string()
+    fn get_video_fps(file_path: &str) -> String {
+        let output = Command::new("ffprobe")
+            .args(&[
+                "-v",
+                "error",
+                "-select_streams",
+                "v:0",
+                "-show_entries",
+                "stream=r_frame_rate",
+                "-of",
+                "default=noprint_wrappers=1:nokey=1",
+                file_path,
+            ])
+            .output()
+            .unwrap();
+
+        String::from_utf8(output.stdout).unwrap().trim().to_string()
     }
 }