[FFmpeg-trac] #4616(avformat:open): Closed Captions: Data Ignored since exceeding screen width

[FFmpeg]

#4616: Closed Captions: Data Ignored since exceeding screen width
-------------------------------------+-------------------------------------
             Reporter:  cehoyos      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  cc mov       |               Blocked By:
  videolan                           |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  1            |
-------------------------------------+-------------------------------------

Comment (by cehoyos):

 For the other sample, the Closed Captions start with:
 {{{
 00000000  00 00 00 0c 63 64 61 74  00 00 00 00 00 00 00 52
 |....cdat.......R|
 00000010  63 64 61 74 94 20 94 ae  94 40 97 a2 3e 3e 20 c8  |cdat.
 ... at ..>> .|
 00000020  75 ec ec 20 64 61 6d 61  67 e5 ba 20 32 b0 25 2c  |u.. damag..
 2.%,|
 00000030  20 62 75 f4 20 f4 68 e5  94 e0 97 a2 73 79 73 f4  | bu.
 .h.....sys.|
 00000040  e5 6d a7 73 20 73 f4 e9  ec ec 20 ef 70 e5 f2 61  |.m.s s....
 .p..a|
 00000050  f4 e9 ef 6e 61 ec ae 80  80 80 80 80 94 2f 00 00
 |...na......../..|
 }}}
 This should be decoded as ">> Hull damage: 20%, but the system's still
 operational."
 When cutting away the first eight bytes, I get no output from cc_dec.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4616#comment:18>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker