[FFmpeg-trac] #7506(undetermined:new): EIA-608 Closed Captions distortion on the output.

FFmpeg trac at avcodec.org
Mon Oct 22 09:12:31 EEST 2018

#7506: EIA-608 Closed Captions distortion on the output.
             Reporter:  w_boba       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
  EIA-608,a53cc, closed captions     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by The_Bart_The):

 I recently found out FFMPEG preserves closed caption data by default and
 am currently in the process of switching my scripts over from
 HandBrakeCLI.  I also discovered this, searched for this bug online and
 found this post the same day it went up.

 Anyway, I'm getting this same bug when I convert an NBC broadcast
 (captured via antenna, so ATSC 1080i MPEG-2 TS; specifically from WMAQ in
 Chicago) but I haven't seen this bug yet from CBS (WBBM, 1080i), FOX
 (WFLD, 720p) PBS (WTTW, 1080i), CW (WPWR, 720p) or ABC (WLS, 720p).

 I've only been using FFMPEG seriously for a few days, so I'll report back
 with any new relevant information. (Maybe it's only certain shows instead
 of networks; who knows?)

Ticket URL: <https://trac.ffmpeg.org/ticket/7506#comment:2>
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