import os
from PIL import Image, ImageSequence
#pip install pillow
def resize_gif(input_path, output_path, width, height):
    """按指定宽高重生成 GIF（保持多帧）"""
    img = Image.open(input_path)

    frames = []
    for frame in ImageSequence.Iterator(img):
        frame = frame.convert("RGBA")
        frame = frame.resize((width, height), Image.Resampling.LANCZOS)
        frames.append(frame)

    # 保存为 GIF
    frames[0].save(
        output_path,
        save_all=True,
        append_images=frames[1:],
        duration=img.info.get("duration", 100),
        loop=img.info.get("loop", 0),
        disposal=2,
        transparency=img.info.get("transparency")
    )
    print(f"生成成功: {output_path}")


if __name__ == "__main__":
    width = 100   # 你想要的宽
    height = 100  # 你想要的高

    for file_name in os.listdir("."):
        if file_name.lower().endswith(".gif"):
            output_name = f"new/{file_name}"
            resize_gif(file_name, output_name, width, height)