Question

您好我有一个MP4视频，我想使用ffmepg更改creation_time，而不更改其余的元数据。但我面临一些问题......

major_brand和更多东西都被改变了。我希望那些是相同的。如果我把它放在ffprobe.exe中，这就是我所看到的：

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '6.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 1
    compatible_brands: mp41mp42isom
    creation_time   : 2013-03-23 16:25:53
  Duration: 00:00:06.55, start: 0.000000, bitrate: 919 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 480x480,
862 kb/s, 29.97 fps, 29.97 tbr, 600 tbn, 1200 tbc
    Metadata:
      creation_time   : 2013-03-23 16:25:53
      handler_name    : Core Media Video
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 62 k
b/s
    Metadata:
      creation_time   : 2013-03-23 16:25:53
      handler_name    : Core Media Audio

我想在运行时更改视频的creation_time：

ffmpeg.exe -i 6.mp4 -metadata creation_time =“2013-06-22 15:00:00”-acodec copy -vcodec copy output.mp4

我明白了：

Output #0, mp4, to 'output.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 1
    compatible_brands: mp41mp42isom
    creation_time   : 2013-06-22 15:00:00
    encoder         : Lavf55.12.102
    Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 480x480, q=
2-31, 862 kb/s, 29.97 fps, 19200 tbn, 600 tbc
    Metadata:
      creation_time   : 2013-03-23 16:25:53
      handler_name    : Core Media Video
    Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, mono, 62 kb
/s
    Metadata:
      creation_time   : 2013-03-23 16:25:53
      handler_name    : Core Media Audio
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=  194 fps=0.0 q=-1.0 Lsize=     738kB time=00:00:06.61 bitrate= 913.9kbits
/s

根据输出，因为我选择了“-acodec copy -vcodec copy”，所以一切都应该保持不变。但是当我为新创建的.mp4文件运行ffprobe时。这是输出：

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 2013-06-22 15:00:00
    encoder         : Lavf55.12.102
  Duration: 00:00:06.62, start: 0.000000, bitrate: 913 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 480x480,
862 kb/s, 29.97 fps, 30 tbr, 19200 tbn, 38400 tbc
    Metadata:
      creation_time   : 2013-06-22 15:00:00
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 62 k
b/s
    Metadata:
      creation_time   : 2013-06-22 15:00:00
      handler_name    : SoundHandler

正如你所看到的一切都发生了变化，即使我选择保持一切都一样。

请帮我解决这个问题。谢谢！

Answer 1

使用python脚本存在一个就地解决方案。

设置Python 3.3.2（它可以与2.7系列中的最后一个一起使用但未经过测试）
从GitHub

movmd.py可以就地更改mp4中的所有日期（非常快）

   python movmd.py mp4File.mp4 "2013-07-29 00:00:00"

用ffmpeg提取mp4信息，我得到了：

ffmpeg version N-53818-gfca435f Copyright (c) 2000-2013 the FFmpeg developers
  built on Jun  4 2013 01:41:53 with gcc 4.7.3 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libblu
ray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-lib
vpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      52. 34.100 / 52. 34.100
  libavcodec     55. 15.100 / 55. 15.100
  libavformat    55.  8.102 / 55.  8.102
  libavdevice    55.  2.100 / 55.  2.100
  libavfilter     3. 74.101 /  3. 74.101
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C_est_pas_Sorcier_Les_Volcans_partie_1 - Copie.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2013-07-28 23:00:00
  Duration: 00:14:19.06, start: 0.000000, bitrate: 611 kb/s
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 509 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc
    Metadata:
      creation_time   : 2013-07-28 23:00:00
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s
    Metadata:
      creation_time   : 2013-07-28 23:00:00
      handler_name    : (C) 2007 Google Inc. v08.13.2007.

ffmpeg编辑元数据major_brand

1 个答案: