合并amp4为eac3

amp4_concat.py

'''
作者: weimo
创建日期: 2020-11-02 22:35:31
上次编辑时间: 2020-11-02 22:55:12
一个人的命运啊,当然要靠自我奋斗,但是...
'''
import sys
import gzip
from pathlib import Path

def decompress(binary: bytes):
    try:
        _ret = gzip.decompress(binary)
    except Exception as e:
        print("解压出错")
        return
    return _ret

def concat(path: str):
    amp4s = []
    _path: Path
    for _path in Path(path).iterdir():
        if _path.suffix == ".amp4":
            amp4s.append(_path)
    amp4s = sorted(amp4s, key=lambda _path: int(_path.stem))
    flag = False
    amp4: Path
    ret = []
    for amp4 in amp4s:
        if flag is False:
            _ret = decompress(amp4.read_bytes())
            if _ret is None:
                print("分段有问题")
                return
            flag = True
            ret.append(_ret)
        else:
            ret.append(amp4.read_bytes())
    Path(path, "output_yue").with_suffix(".eac3").write_bytes(b"".join(ret))
    print("合并完成")

if __name__ == "__main__":
    _path = sys.argv[1]
    concat(_path)