你好,我有一个MP4视频,想要使用ffmepg更改creation_time,但不想改变其余元数据。但我遇到了一些问题。
major_brand和其他内容已经被更改了。我希望它们保持不变。如果我在ffprobe.exe中查看,会看到以下内容:
major_brand和其他内容已经被更改了。我希望它们保持不变。如果我在ffprobe.exe中查看,会看到以下内容:
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
我想修改视频的创建时间,当我执行以下命令:
ffmpeg.exe -i 6.mp4 -metadata creation_time="2013-06-22 15:00:00" -acodec copy -vcodec copy output.mp4
我得到了如下结果:
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
根据输出结果和我选择的“-acodec copy -vcodec copy”,一切应该保持不变。但是,当我运行新创建的.mp4文件的ffprobe时,输出如下:
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
尽管我选择保持一切不变,但你可以看到一切都发生了变化。
请帮我解决这个问题。谢谢!