Don't set start position if it is not valid

web/src/components/player/GenericVideoPlayer.tsx

@@ -109,7 +109,6 @@ export function GenericVideoPlayer({
                 videoRef={videoRef}
                 currentSource={{
                   playlist: source,
-                  startPosition: 0,
                 }}
                 hotKeys
                 visible

web/src/components/player/HlsVideoPlayer.tsx

@@ -30,7 +30,7 @@ const unsupportedErrorCodes = [
 
 export interface HlsSource {
   playlist: string;
-  startPosition: number;
+  startPosition?: number;
 }
 
 type HlsVideoPlayerProps = {

web/src/components/player/dynamic/DynamicVideoPlayer.tsx

@@ -185,16 +185,26 @@ export default function DynamicVideoPlayer({
       playerRef.current.autoplay = !isScrubbing;
     }
 
+    let startPosition = undefined;
+
+    if (startTimestamp) {
       const inpointOffset = calculateInpointOffset(
         recordingParams.after,
         (recordings || [])[0],
       );
+      const idealStartPosition = Math.max(
+        0,
+        startTimestamp - timeRange.after - inpointOffset,
+      );
+
+      if (idealStartPosition >= recordings[0].start_time - timeRange.after) {
+        startPosition = idealStartPosition;
+      }
+    }
 
     setSource({
       playlist: `${apiHost}vod/${camera}/start/${recordingParams.after}/end/${recordingParams.before}/master.m3u8`,
-      startPosition: startTimestamp
+      startPosition,
-        ? Math.max(0, startTimestamp - timeRange.after - inpointOffset)
-        : 0,
     });
 
     setLoadingTimeout(setTimeout(() => setIsLoading(true), 1000));