import os
from functools import wraps, partial
#扫描装饰器 
def scan(func=None, *, path=None):
if func is None:
return partial(scan, path=path)
    @wraps(func)
def wrapper(path):
        ls_dir = os.listdir(path)
for file_name in ls_dir:
            file_path = os.path.join(path,file_name)
if os.path.isfile(file_path):
                func(file_path)
elif os.path.isdir(file_path):
                wrapper(file_path)
return wrapper
def run(src,dst):
print(src,dst)
    cmd = f'ffmpeg -i "{src}" -vcodec  hevc_nvenc "{dst}"'
    os.system(cmd)
@scan
def main(path):
if "hevc_nvenc" not in path and path.endswith(".mp4"):#这里的mp4可以修改为你想要的视频后缀名，已经转过得结果不转
        basename = os.path.basename(path)
        dirname = os.path.dirname(path)
        fname,ext = os.path.splitext(basename)
        newname = fname+"hevc_nvenc.mp4"
        newpath = os.path.join(dirname,newname)
if not os.path.exists(newpath):#已经转过跳过
            run(path,newpath)
main(rf"/mnt/sdb1/")