[FFmpeg-trac] #11455(undetermined:new): Degradation in Closed Captions decoding

FFmpeg trac at avcodec.org
Thu Feb 6 13:21:48 EET 2025


#11455: Degradation in Closed Captions decoding
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             Reporter:  ValeryKot    |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by ValeryKot):

 With explicit -data_field first it works indeed, thanks! So it is not a
 degradation, but change in functionality and default behaviour. Before
 4.4, CC decoder was always processing first data field. Since 4.4 it has
 an option to select first or second, but default is "auto", which in 50%
 might get wrong and non-deterministic. In my view, "first" would be a
 better default. But of course it is now too late to discuss.

 Thanks for the explanation, ticket can be closed.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11455#comment:4>
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