INNER CODE UNIT · Python

generate

unitedrhino/things · scripts/generate-energy-demo-svg.py:119

def generate(demo: Demo, output_dir: Path) -> None:
    """generate 校验输入后生成一份完整时长的 SVG 动图。"""

    if not demo.source.is_file():
        raise FileNotFoundError(demo.source)
    duration, source_width, source_height = probe_video(demo.source)
    if abs(duration - demo.duration) > 0.1:
        raise RuntimeError(f"{demo.source.name} 时长应为 {demo.duration}s，实际为 {duration:.3f}s")
    output_height = round(FRAME_WIDTH * source_height / source_width)
    output_height += output_height % 2
    with tempfile.TemporaryDirectory(prefix="energy-demo-svg-") as temporary:
        frames = extract_frames(demo, Path(temporary))
        output = output_dir / demo.output_name
        build_svg(demo, frames, FRAME_WIDTH, output_height, output)
    print(f"生成 {output}（{output.stat().st_size / 1024 / 1024:.2f} MB）")


def main() -> None:

View source record →