From dfef138e9df5ab5e24ebc6cb6e343aeca4f75ef4 Mon Sep 17 00:00:00 2001
From: Josh Holmer <jholmer.in@gmail.com>
Date: Fri, 17 Sep 2021 09:28:24 -0400
Subject: [PATCH] Fix an inconsistency with rav1e

---
 src/lib.rs | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 1dd30a4..22ffe10 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -158,11 +158,13 @@ pub fn detect_scene_changes<R: Read, T: Pixel>(
             // End of video
             break;
         }
-        if detector.analyze_next_frame(
-            &frame_set,
-            frameno as u64,
-            *keyframes.iter().last().unwrap(),
-        ) {
+        if frameno == 0
+            || detector.analyze_next_frame(
+                &frame_set,
+                frameno as u64,
+                *keyframes.iter().last().unwrap(),
+            )
+        {
             keyframes.insert(frameno as u64);
         };