Update app.py

app.py

@@ -200,17 +200,16 @@ def export_to_video_file(video_frames, output_video_path=None, fps=hardcoded_fps
 # 
 #     Scene change detection threshold. Default is 5.0. 
 
-def interpolate_video_frames(input_file_path, output_file_path, output_fps=hardcoded_fps, desired_duration=hardcoded_duration_sec, original_duration=hardcoded_duration_sec):
+def interpolate_video_frames(input_file_path, output_file_path, output_fps=hardcoded_fps, desired_duration=hardcoded_duration_sec, original_duration=hardcoded_duration_sec, verbose=False):
     scale_factor = desired_duration / original_duration
-    # old value:
-    # interpolation_filter = f'minterpolate=fps={output_fps},setpts={scale_factor}*PTS'
-    # new value:
+    # note: from all fact, it looks like using a small macroblock is important for us,
+    # since the video resolution is very small (usually 512x288px)
     interpolation_filter = f'minterpolate=mi_mode=mci:mc_mode=obmc:me=hexbs:vsbmc=1:mb_size=4:fps={output_fps}:scd=none,setpts={scale_factor}*PTS'
     #- `mi_mode=mci`: Specifies motion compensated interpolation.
     #- `mc_mode=obmc`: Overlapped block motion compensation is used.
     #- `me=hexbs`: Hexagon-based search (motion estimation method).
     #- `vsbmc=1`: Variable-size block motion compensation is enabled.
-    #- `mb_size=8`: Sets the macroblock size.
+    #- `mb_size=4`: Sets the macroblock size.
     #- `fps={output_fps}`: Defines the output frame rate.
     #- `scd=none`: Disables scene change detection entirely. 
     #- `setpts={scale_factor}*PTS`: Adjusts for the stretching of the video duration.
@@ -223,11 +222,17 @@ def interpolate_video_frames(input_file_path, output_file_path, output_fps=hardc
         output_file_path
     ]
 
-    # Logging for debugging
-    print("output_fps:", output_fps)
-    print("desired_duration:", desired_duration)
-    print("original_duration:", original_duration)
-    print("cmd:", cmd)
+    # Adjust the log level based on the verbosity input
+    if not verbose:
+        cmd.insert(1, '-loglevel')
+        cmd.insert(2, 'error')
+    
+    # Logging for debugging if verbose
+    if verbose:
+        print("output_fps:", output_fps)
+        print("desired_duration:", desired_duration)
+        print("original_duration:", original_duration)
+        print("cmd:", cmd)
 
     try:
         subprocess.run(cmd, check=True)