[libav-bugs] [Bug 852] New: Metadata - ID3 Date field writen as TDRL field seems ambiguous

bugzilla at aruru.libav.org bugzilla at aruru.libav.org
Sun Apr 26 15:41:50 CEST 2015


https://bugzilla.libav.org/show_bug.cgi?id=852

            Bug ID: 852
           Summary: Metadata - ID3 Date field writen as TDRL field seems
                    ambiguous
           Product: Libav
           Version: 11
          Hardware: Other
                OS: Mac OS
            Status: NEW
          Severity: normal
          Priority: ---
         Component: general
          Assignee: bugzilla at libav.org
          Reporter: fernandodefranca at gmail.com

I'm writing the metadata as the following:

command:
avconv -i input.mp3 -metadata date=1943 output.mp3

Metadata seems to be written in it's respective field.

command:
avconv -i output.mp3

results:
Input #0, mp3, from 'output.mp3':
  Metadata:
    date            : 1943

When I check the file metadata on any other software the date field is empty.
I've tested with Tagger, Kid3 and VLC. Any of this will show no date field.

Investigating which field was in fact written by avconv I discovered that only
the TDRL field was written. This can be verified with the Kid3 app.

Using the tagging feature of Kid3 I've written the date field with a differente
value (1942) leaving the TDRL field as it was written by avconv (1943).

Reading the updatad file metadata with avconv is surprising:

command:
avconv -i output.mp3

results:
Input #0, mp3, from 'output.mp3':
  Metadata:
    date            : 1942

Now avconv reads the date metadata from the date field not the TDRL field
written by itself.

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