[FFmpeg-user] Naming chapters in Matroska video

Jim DeLaHunt list+ffmpeg-user at jdlh.com
Fri Feb 19 03:48:33 EET 2021


On 2021-02-18 15:05, Paul B Mahol wrote:

> Everything  is explained in documentation. My time is very limited.

No, not everything about FFmpeg's handling of metadata is explained in 
FFmpeg's documentation. For example, the -map_metdata section[1] does 
not link to the -map_chapters[2] section nor to the Metadata[3] section 
of the documentation.  None of those three places explain FFmpeg's data 
model for metadata: that is, what metadata is, what its contents can be, 
how it relates to the media content. The -map_chapters section talks 
about "chapters" without defining what that term means.  I could list 
many more things which are not explained in the documentation.

Your are of course entitled to limit the time you spend answering 
questions here. You do regularly answer questions here, and that is a 
generous gift. Thank you. But you are not entitled to pretend that the 
documentation explains fully, when it does not.

[1] http://ffmpeg.org/ffmpeg-all.html#Advanced-options, search for 
"-map_metadata"
[2] http://ffmpeg.org/ffmpeg-all.html#Advanced-options, search for 
"-map_chapters"
[3] http://ffmpeg.org/ffmpeg-all.html#Metadata-1

Best regards,
     —Jim DeLaHunt




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