FFMPEG: H264 -> H265

avc2hevc.py

import os
import sys

video_ext = (".mp4", ".wmv", ".avi", ".rm", ".rmvb", ".m4v",
             ".ogg", ".mkv", ".flv", ".mov", ".3gp", ".ts", ".mpg")


def isvideo(n: str) -> bool:
    _, ext = os.path.splitext(n)
    return ext.lower() in video_ext


def transcode(v_path: str, t_dir: str) -> int:
    v_path = os.path.abspath(v_path)
    v_name = os.path.basename(v_path)
    if not isvideo(v_name):
        raise NameError(f'{v_name} is not a video file!')

    t_path = os.path.join(t_dir, v_name)
    if os.path.exists(t_path):
        raise FileExistsError(f'{t_path} file exists!')

    command = 'ffmpeg -hide_banner -i {0}  -c:v libx265 -vtag hvc1 -c:a copy {1}'.format(
        v_path, t_path)
    return os.system(command=command)


def main():
    res = 0
    try:
        _, v_path, t_dir = sys.argv
        res = transcode(v_path, t_dir)
    except KeyboardInterrupt:
        pass
    except ValueError:
        print('Usage: {} video_path target_dir'.format(
            os.path.basename(sys.argv[0])))
    except Exception as e:
        print(e)

    exit(res)


if __name__ == '__main__':
    main()