[FFmpeg-trac] #10145(undetermined:new): ffmetadata not properly working for opus

[FFmpeg]

#10145: ffmetadata not properly working for opus
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             Reporter:  hasezoey     |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  ffmetadata   |               Blocked By:
  opus                               |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Description changed by hasezoey:

Old description:

> Summary of the bug:
> Currently when trying to use "-f ffmetadata" on a ".opus" file results in
> not all metadata copied
>
> How to reproduce:
> - have a input opus file with metadata
> {{{
> $ ffmpeg -report -i in.opus -f ffmetadata meta.txt
> $ cat meta.txt
> }}}
> observe "meta.txt" not having all metadata

New description:

 Summary of the bug:
 Currently when trying to use "-f ffmetadata" on a ".opus" file results in
 not all metadata copied

 How to reproduce:
 - have a input opus file with metadata
 {{{
 $ ffmpeg -report -i in.opus -f ffmetadata meta.txt
 $ cat meta.txt
 }}}
 observe "meta.txt" not having all metadata

 example output of the provided "silence.opus":

 {{{
 ;FFMETADATA1
 encoder=Lavf59.27.100
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/10145#comment:1>
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