Update app.py

app.py

@@ -5,9 +5,11 @@ import subprocess
 import gradio as gr
 import tempfile
 
-# Define supported subtitle formats
+# Define supported subtitle formats (without the dot for conversion logic)
 SUPPORTED_SUBTITLE_FORMATS = ['srt', 'vtt', 'ass', 'ssa']
 SUPPORTED_SUBTITLE_FORMATS2 = ['srt', 'vtt', 'ass', 'ssa']
+# Define allowed file extensions for Gradio file uploader (with dot)
+ALLOWED_EXTENSIONS = [".srt", ".vtt", ".ass", ".ssa"]
 
 def convert_subtitle_file(src_format, dest_format, input_file_path):
     """
@@ -126,7 +128,7 @@ def main():
         with gr.Row():
             # Left column: file upload and format selection
             with gr.Column(scale=1):
-                file_input = gr.File(label="Upload Subtitle File", file_types=SUPPORTED_SUBTITLE_FORMATS, type="filepath")
+                file_input = gr.File(label="Upload Subtitle File", file_types=ALLOWED_EXTENSIONS, type="filepath")
                 dest_format = gr.Dropdown(label='Convert To', choices=SUPPORTED_SUBTITLE_FORMATS2, value=SUPPORTED_SUBTITLE_FORMATS2[0])
                 convert_button = gr.Button("Convert", elem_id="convert-btn")
             # Right column: display conversion result and error messages