utils.py

import uuid
import os
from moviepy.editor import (
    VideoFileClip,
    ImageClip,
    TextClip,
    AudioFileClip,
    CompositeVideoClip,
    ColorClip
)


def generate_sample_video():
    output_path = f"/app/generated_{uuid.uuid4().hex[:6]}.mp4"
    bg_clip = ColorClip(size=(1280, 720), color=(10, 10, 10), duration=5)
    txt_clip = TextClip(
        "This is MoviePy on Hugging Face", fontsize=70, color='white', font="DejaVu-Serif"
    ).set_duration(5).set_position(("center", "center"))

    final_clip = CompositeVideoClip([bg_clip, txt_clip])
    final_clip.write_videofile(output_path, fps=24, codec="libx264")
    return output_path


async def combine_video_audio(video_file, audio_file):
    video_path = f"/app/temp_video_{uuid.uuid4().hex[:6]}.mp4"
    audio_path = f"/app/temp_audio_{uuid.uuid4().hex[:6]}.mp3"
    output_path = f"/app/output_{uuid.uuid4().hex[:6]}.mp4"

    with open(video_path, "wb") as f:
        f.write(await video_file.read())
    with open(audio_path, "wb") as f:
        f.write(await audio_file.read())

    videoclip = VideoFileClip(video_path)
    audioclip = AudioFileClip(audio_path)
    videoclip = videoclip.set_audio(audioclip)

    videoclip.write_videofile(output_path, codec="libx264", fps=24)

    os.remove(video_path)
    os.remove(audio_path)

    return output_path