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

[FFmpeg]

#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 Marth64):

 Your sample has actual text on field 1 (odd) instead of field 2. But field
 2 is transmitting bits before field 1, the CC decoder is choosing it as
 the default field to decode. This command works for your sample:

 {{{
 ffmpeg -data_field first -f lavfi -i "movie=CC720p60_10sec.mp4[out+subcc]"
 -map 0:1 output_10sec.srt
 }}}

 This is similar to #11263
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11455#comment:3>
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