Add detailed logging to debug subtitle generation errors

utils.py

@@ -15,16 +15,20 @@ def process_video(video_file, language):
 
     try:
         # Save the uploaded file
+        print("Saving uploaded video...")
         with open(video_path, "wb") as f:
             f.write(video_file.read())
+        print(f"Video saved to {video_path}")
 
         # Convert the video to MP4 using ffmpeg
         print("Converting video to MP4...")
         subprocess.run(["ffmpeg", "-i", video_path, "-c:v", "libx264", "-preset", "fast", output_video_path], check=True)
+        print(f"Video converted and saved to {output_video_path}")
 
         # Transcribe the video
         print("Transcribing video to English...")
         result = model.transcribe(output_video_path, language="en")
+        print("Transcription completed!")
 
         # Translation logic
         segments = []
@@ -48,6 +52,7 @@ def process_video(video_file, language):
             if not model_name:
                 return f"Unsupported language: {language}"
 
+            print(f"Loading translation model for {language}: {model_name}")
             if language == "Telugu":
                 tokenizer = AutoTokenizer.from_pretrained(model_name)
                 translation_model = AutoModelForSeq2SeqLM.from_pretrained(model_name)
@@ -72,18 +77,23 @@ def process_video(video_file, language):
 
         # Create SRT file
         srt_path = os.path.join(tempfile.gettempdir(), "subtitles.srt")
+        print(f"Creating SRT file at {srt_path}")
         with open(srt_path, "w", encoding="utf-8") as f:
             for i, segment in enumerate(segments, 1):
                 start = f"{segment['start']:.3f}".replace(".", ",")
                 end = f"{segment['end']:.3f}".replace(".", ",")
                 text = segment["text"].strip()
                 f.write(f"{i}\n00:00:{start} --> 00:00:{end}\n{text}\n\n")
+        print("SRT file created successfully!")
         return srt_path
 
+    except subprocess.CalledProcessError as e:
+        return f"FFmpeg Error: {str(e)}"
     except Exception as e:
-        return f"Error: {str(e)}"
+        return f"Unexpected Error: {str(e)}"
     finally:
         # Clean up temporary files
+        print("Cleaning up temporary files...")
         if os.path.exists(video_path):
             os.remove(video_path)
         if os.path.exists(output_video_path):