Update app.py

app.py

@@ -72,12 +72,14 @@ def text_to_video(text, voice, rate, pitch, video_width, video_height, bg_color,
 
         # 使用 wand 生成视频片段
         with Drawing() as draw:
+    # Ensure that the following lines are indented correctly
     draw.font = font_path
     draw.font_size = text_size
     draw.fill_color = Color(text_color)
     draw.text_alignment = 'center'
     draw.text_interline_spacing = 10
-
+    
+    # Another 'with' block starts here, so make sure this is also properly indented
     with Image(width=video_width, height=video_height, background=Color(bg_color)) as img:
         lines = page.split("\n")
         for j, line in enumerate(lines):
@@ -86,13 +88,14 @@ def text_to_video(text, voice, rate, pitch, video_width, video_height, bg_color,
         # Apply the drawing to the image
         draw(img)
 
+        # Save the image as a PNG file
         img.format = 'png'
         img_path = os.path.join(tempfile.gettempdir(), f"page_{i}.png")
         img.save(filename=img_path)
 
+        # Create the video clip using the generated image
         text_clip = ImageClip(img_path).set_duration(audio_clip.duration).set_audio(audio_clip)
         video_clips.append(text_clip)
-
     
     # 合并所有视频片段
     final_video = concatenate_videoclips(video_clips)