`media/video.py`

65 lines
#!/usr/bin/env python3
"""
media/video.py — Create video from audio + static cover image.

For full avatar+screen layout, use video/compose_video.sh instead.

Usage:
    python3 media/video.py <audio.mp3> [output.mp4]
"""

import subprocess
import sys
from pathlib import Path


def build_video(audio_file: str, output_file: str = "media/output/video.mp4"):
    Path(output_file).parent.mkdir(parents=True, exist_ok=True)

    cover = "assets/cover.png"
    if not Path(cover).exists():
        Path("assets").mkdir(parents=True, exist_ok=True)
        subprocess.run(
            [
                "ffmpeg", "-y",
                "-f", "lavfi",
                "-i", "color=c=0x1a1a2e:s=1920x1080:d=1",
                "-vframes", "1",
                cover,
            ],
            check=True,
        )
        print(f"Generated placeholder cover: {cover}")

    subprocess.run(
        [
            "ffmpeg", "-y",
            "-loop", "1",
            "-i", cover,
            "-i", audio_file,
            "-c:v", "libx264",
            "-tune", "stillimage",
            "-preset", "fast",
            "-crf", "23",
            "-c:a", "aac",
            "-b:a", "192k",
            "-shortest",
            output_file,
        ],
        check=True,
    )
    print(f"Video created: {output_file}")


def main():
    if len(sys.argv) < 2:
        print("Usage: video.py <audio.mp3> [output.mp4]", file=sys.stderr)
        sys.exit(2)

    output = sys.argv[2] if len(sys.argv) > 2 else "media/output/video.mp4"
    build_video(sys.argv[1], output)


if __name__ == "__main__":
    main()