media.py 文件源码

def create_thumbnail(filename):
    tn_dir = os.path.join(os.path.dirname(filename), THUMBNAILS_PATH)
    tn_filename = os.path.join(tn_dir, os.path.basename(filename))

    if not os.path.isfile(tn_filename):
        logger.info('Creating thumbnail for %s', filename)
        os.makedirs(tn_dir, exist_ok=True)
        image = Image.open(filename)
        image.thumbnail((IMG_MAX_SIZE, IMG_MAX_SIZE))
        image.filter(ImageFilter.SHARPEN)
        image.save(tn_filename, image.format, **THUMBNAIL_SAVE_OPTIONS)
    return tn_filename