#4848: Tagging of webm files is incomplete
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Reporter: nexus07 | Owner:
Type: defect | Status: new
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: mkv | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by nexus07):
I have uploaded such a webm file here (as part of an archive):
http://www.datafilehost.com/d/75656526
When the file is opened by VLC media player, the information is visible in
the "Current Media Information" window. The file is also playable when
embedded in a HTML5 Tag by Mozilla Firefox.
It is an "artificial" webm file because I found no program which writes
these information directly into the webm container. After creation it
contains no
TAGS container (ID=0x1254C367) before the Cluster container
(ID=0x1F43B675)
Maybe this also is an issue for the webm project. Maybe the TAGS container
was forgotten in the official specification, but inserting the TAGS into
the webm container seems not to make problems.
Maybe this "bug" is a feature request, which is IMHO in the interest of
many video producers:
ffmpeg -i <input>.webm -c copy -metadata ... <output>.webm
should insert a TAGS container with the metadata information into the
output webm file.
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Ticket URL: <https://trac.ffmpeg.org/ticket/4848#comment:3>
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