Le 16/06/2017 à 14:25, wm4 a écrit :
On Fri, 16 Jun 2017 13:51:20 +0200
21na...@gmail.com wrote:

Le 16/06/2017 à 12:55, wm4 a écrit :
On Fri, 16 Jun 2017 02:32:10 +0200
21na...@gmail.com wrote:
Hello,


I would like to know why the tag “DURATION” in Matroska files (.mkv) is
a necessity? Even mkvmerge lets the choice to use it or not with
“--enable-durations”, in addition it is written “Write durations for all
blocks. This will increase file size and does not offer any additional
value for players at the moment.” (source
https://mkvtoolnix.download/doc/mkvmerge.html#d4e535).

Possibly linked to
http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=31852540d4fba0c4e8a16d0b3ddff08fc98e48fd
As far as I'm aware, the linked commit does not do the same thing as
the mkvmerge option you pointed out.
Yes that is why I wrote “possibly”, also because this commit is the one
which adds the tag “DURATION” as a necessity, but a necessity that no
software seems to use and it is not even a standard in the Matroska’s
documentation if I am not mistaken. So the fact that it is a necessity
and not a choice is the main problem.
Who says it's a necessity or standard? It's just what mkvmerge does.
Since the patch is by google, I assume google has some use for it
(there might also be a discussion about it on the ML).

Sorry for the bad word “necessity”, it is better with “imposed”. Could you let the choice to the user like mkvmerge with “--disable-track-statistics-tags”?
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