Merge pull request #15 from StarKnightt/feature/speed-control

Add video speed control and improve playback smoothness

1 files changed, 27 insertions, 7 deletions

diff --git a/apps/web/src/stores/playback-store.ts b/apps/web/src/stores/playback-store.ts
index 3c0bfdec..a4794b7f 100644
--- a/apps/web/src/stores/playback-store.ts
+++ b/apps/web/src/stores/playback-store.ts
@@ -6,15 +6,20 @@ interface PlaybackStore extends PlaybackState, PlaybackControls {
   setCurrentTime: (time: number) => void;
 }
 
-let playbackTimer: NodeJS.Timeout | null = null;
+let playbackTimer: number | null = null;
 
 const startTimer = (store: any) => {
-  if (playbackTimer) clearInterval(playbackTimer);
+  if (playbackTimer) cancelAnimationFrame(playbackTimer);
   
-  playbackTimer = setInterval(() => {
+  // Use requestAnimationFrame for smoother updates
+  const updateTime = () => {
     const state = store();
     if (state.isPlaying && state.currentTime < state.duration) {
-      const newTime = state.currentTime + 0.1;
+      const now = performance.now();
+      const delta = (now - lastUpdate) / 1000; // Convert to seconds
+      lastUpdate = now;
+      
+      const newTime = state.currentTime + (delta * state.speed);
       if (newTime >= state.duration) {
         state.pause();
       } else {
@@ -23,12 +28,16 @@ const startTimer = (store: any) => {
         window.dispatchEvent(new CustomEvent('playback-update', { detail: { time: newTime } }));
       }
     }
-  }, 100);
+    playbackTimer = requestAnimationFrame(updateTime);
+  };
+
+  let lastUpdate = performance.now();
+  playbackTimer = requestAnimationFrame(updateTime);
 };
 
 const stopTimer = () => {
   if (playbackTimer) {
-    clearInterval(playbackTimer);
+    cancelAnimationFrame(playbackTimer);
     playbackTimer = null;
   }
 };
@@ -38,6 +47,7 @@ export const usePlaybackStore = create<PlaybackStore>((set, get) => ({
   currentTime: 0,
   duration: 0,
   volume: 1,
+  speed: 1.0,
 
   play: () => {
     set({ isPlaying: true });
@@ -64,10 +74,20 @@ export const usePlaybackStore = create<PlaybackStore>((set, get) => ({
     set({ currentTime: clampedTime });
     
     // Notify video elements to seek
-    window.dispatchEvent(new CustomEvent('playback-seek', { detail: { time: clampedTime } }));
+    const event = new CustomEvent('playback-seek', { detail: { time: clampedTime } });
+    window.dispatchEvent(event);
   },
   
   setVolume: (volume: number) => set({ volume: Math.max(0, Math.min(1, volume)) }),
+  
+  setSpeed: (speed: number) => {
+    const newSpeed = Math.max(0.1, Math.min(2.0, speed));
+    set({ speed: newSpeed });
+    
+    const event = new CustomEvent('playback-speed', { detail: { speed: newSpeed } });
+    window.dispatchEvent(event);
+  },
+
   setDuration: (duration: number) => set({ duration }),
   setCurrentTime: (time: number) => set({ currentTime: time }),
 })); 
\ No newline at end of file