utils.py

import streamlit as st
import os
from moviepy.editor import VideoFileClip

def save_uploaded_file(uploaded_file):
    try:
        file_path = os.path.join('uploaded', uploaded_file.name)
        with open(file_path, 'wb') as f:
            f.write(uploaded_file.getvalue())
        return file_path
    except Exception as e:
        st.error(f"Error: {e}")
        return None
    
def encode_video_H264(video_path, remove_original=False):
    """
    Encode video to H264 codec
    
    Args:
        video_path (str): path to video to be encoded
        remove_original (bool): whether to remove original video after encoding
    Returns:
        output_path (str): path to encoded video
    """

    output_path = video_path.split('.')[0] + '_H264.mp4'
    clip = VideoFileClip(video_path)
    clip.write_videofile(output_path, codec='libx264')
    if remove_original:
        os.remove(video_path)
    clip.close()

    return output_path