chore: true shuffle video

- random duration splits video
- shuffle splits video

app/services/video.py

@@ -49,14 +49,27 @@ def combine_videos(combined_video_path: str,
 
     clips = []
     video_duration = 0
+
+    raw_clips = []
+    for video_path in video_paths:
+        clip = VideoFileClip(video_path).without_audio()
+        clip_duration = clip.duration
+        start_time = 0
+
+        while start_time < clip_duration:
+            end_time = min(start_time + max_clip_duration, clip_duration)
+            split_clip = clip.subclip(start_time, end_time)
+            raw_clips.append(split_clip)
+            logger.info(f"splitting from {start_time:.2f} to {end_time:.2f}, clip duration {clip_duration:.2f}, split_clip duration {split_clip.duration:.2f}")
+            start_time = end_time
     # Add downloaded clips over and over until the duration of the audio (max_duration) has been reached
     while video_duration < audio_duration:
         # random video_paths order
         if video_concat_mode.value == VideoConcatMode.random.value:
-            random.shuffle(video_paths)
+            random.shuffle(raw_clips)
 
-        for video_path in video_paths:
-            clip = VideoFileClip(video_path).without_audio()
+
+        for clip in raw_clips:
             # Check if clip is longer than the remaining audio
             if (audio_duration - video_duration) < clip.duration:
                 clip = clip.subclip(0, (audio_duration - video_duration))