Update app.py

app.py

@@ -197,27 +197,38 @@ def add_transcript_to_video(video_path, translated_json, output_path):
     text_clips = []
 
     logger.debug("Full translated_json: %s", translated_json)
-    for entry in translated_json:
-        logger.debug("Processing entry: %s", entry)
+    
+    # Define relative font size based on video height (adjust this value as necessary)
+    subtitle_font_size = video.h // 15  # 1/15th of video height (you can tweak this for better results)
+    
+    # Set maximum width for subtitle wrapping (80% of video width)
+    max_subtitle_width = video.w * 0.8  # Adjust this value as needed for wrapping
 
     font_path = "./NotoSansSC-Regular.ttf"
 
     for entry in translated_json:
+        logger.debug("Processing entry: %s", entry)
+
         # Ensure `entry` is a dictionary with keys "start", "end", and "translated"
         if isinstance(entry, dict) and "translated" in entry:
             txt_clip = TextClip(
-                text=entry["translated"], font=font_path, method='caption', color='yellow', size=video.size
+                text=entry["translated"], 
+                font=font_path, 
+                method='caption', 
+                color='yellow', 
+                fontsize=subtitle_font_size,  # Use relative font size
+                size=(max_subtitle_width, None)  # Restrict the width to ensure wrapping
             ).with_start(entry["start"]).with_duration(entry["end"] - entry["start"]).with_position(('bottom')).with_opacity(0.7)
             text_clips.append(txt_clip)
         else:
             raise ValueError(f"Invalid entry format: {entry}")
-            
+
     # Overlay all text clips on the original video
     final_video = CompositeVideoClip([video] + text_clips)
 
     # Write the result to a file
     final_video.write_videofile(output_path, codec='libx264', audio_codec='aac')
-
+    
 # Mock functions for platform actions and analytics
 def mock_post_to_platform(platform, content_title):
     return f"Content '{content_title}' successfully posted on {platform}!"