import gradio as gr
import subprocess
import uuid
import os

OUTPUT_DIR = "outputs"
os.makedirs(OUTPUT_DIR, exist_ok=True)

def webm_to_mp4(video):
    output_name = f"{uuid.uuid4()}.mp4"
    output_path = os.path.join(OUTPUT_DIR, output_name)

    subprocess.run([
        "ffmpeg",
        "-y",
        "-i", video,
        "-movflags", "faststart",
        "-pix_fmt", "yuv420p",
        output_path
    ], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)

    return output_path

app = gr.Interface(
    fn=webm_to_mp4,
    inputs=gr.File(file_types=[".webm"]),
    outputs=gr.File(),
    api_name="convert"
)

app.launch()