app.py

import gradio as gr
import subprocess
from pathlib import Path
import tempfile
import shutil
import uuid

allowed_medias = [".png", ".jpg", ".jpeg", ".bmp", ".gif", ".tiff"]

def execute_ffmpeg_image_to_video(image_file):
    """Konvertiert ein Bild in ein 5-Sekunden-Video"""
    if image_file is None:
        return None, "❌ Keine Datei ausgewählt"

    temp_dir = tempfile.mkdtemp()
    file_path = Path(image_file.name)
    sanitized_name = file_path.name.replace(" ", "_")
    dest_path = Path(temp_dir) / sanitized_name
    shutil.copy(file_path, dest_path)

    output_file = Path(temp_dir) / f"output_{uuid.uuid4().hex}.mp4"

    cmd = [
        "ffmpeg",
        "-y",
        "-loop", "1",
        "-framerate", "25",
        "-i", str(dest_path),
        "-t", "5",
        "-c:v", "mpeg4",
        "-pix_fmt", "yuv420p",
        str(output_file)
    ]

    try:
        subprocess.run(cmd, check=True, text=True, capture_output=True)
    except subprocess.CalledProcessError as e:
        return None, f"❌ FFmpeg Fehler:\n{e.stderr}"

    return str(output_file), "✅ Video erfolgreich erstellt"

# Gradio UI
with gr.Blocks() as demo:
    gr.Markdown("# Bild → Video Konverter")

    img_input = gr.File(file_types=allowed_medias, label="Bild auswählen")
    out_video = gr.Video(interactive=False, label="Generiertes Video")
    status = gr.Textbox(interactive=False, label="Status")

    btn = gr.Button("Video erstellen")
    btn.click(
        fn=execute_ffmpeg_image_to_video,
        inputs=[img_input],
        outputs=[out_video, status],
    )

demo.launch()