video - 获取 MOV 视频的元数据

Question

我有一个 .MOV 视频由电话信使应用程序发送。能否找回文件和作者的真实创作数据？我尝试使用 ffprobe、mediainfo 和类似工具，但只给我下载日期。

Answer 1

所以，我更新了MMM's code到 Python3 并改进了一些东西。

def get_mov_timestamps(filename):
    ''' Get the creation and modification date-time from .mov metadata.

        Returns None if a value is not available.
    '''
    from datetime import datetime as DateTime
    import struct

    ATOM_HEADER_SIZE = 8
    # difference between Unix epoch and QuickTime epoch, in seconds
    EPOCH_ADJUSTER = 2082844800

    creation_time = modification_time = None

    # search for moov item
    with open(filename, "rb") as f:
        while True:
            atom_header = f.read(ATOM_HEADER_SIZE)
            #~ print('atom header:', atom_header)  # debug purposes
            if atom_header[4:8] == b'moov':
                break  # found
            else:
                atom_size = struct.unpack('>I', atom_header[0:4])[0]
                f.seek(atom_size - 8, 1)

        # found 'moov', look for 'mvhd' and timestamps
        atom_header = f.read(ATOM_HEADER_SIZE)
        if atom_header[4:8] == b'cmov':
            raise RuntimeError('moov atom is compressed')
        elif atom_header[4:8] != b'mvhd':
            raise RuntimeError('expected to find "mvhd" header.')
        else:
            f.seek(4, 1)
            creation_time = struct.unpack('>I', f.read(4))[0] - EPOCH_ADJUSTER
            creation_time = DateTime.fromtimestamp(creation_time)
            if creation_time.year < 1990:  # invalid or censored data
                creation_time = None

            modification_time = struct.unpack('>I', f.read(4))[0] - EPOCH_ADJUSTER
            modification_time = DateTime.fromtimestamp(modification_time)
            if modification_time.year < 1990:  # invalid or censored data
                modification_time = None

    return creation_time, modification_time

和...

你不知道吗，就在我完成时，我发现了如何使用 exiftool 来完成它，我用它来处理 .jpg 文件的类似任务。 :-/

⏵ exiftool -time:all img_3904.mov