[FFmpeg-trac] #628(undetermined:new): Frame copy concealment is not working for h.264

FFmpeg trac at avcodec.org
Wed Nov 9 19:38:36 CET 2011

#628: Frame copy concealment is not working for h.264
             Reporter:               |                    Owner:  michael
  hardiksharma                       |                   Status:  new
                 Type:  defect       |                Component:
             Priority:  normal       |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  h264         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by cehoyos):

 Replying to [comment:2 hardiksharma]:
 > Replying to [comment:1 cehoyos]: My problem occurs after 220 frames
 because B frame with size lesser then my slice size (with only one slice)
 is coming in last gops only. It is reproducible anywhere if our frame size
 is lesser then slice size or one slice means one frame and if user dropped
 that slice to introduce error.

 Is there a reason you cannot add more frames (with even more slices if
 that is really necessary) and then cut away GOPs in the beginning of the
 streams so you have (for example) three (or five) GOPs with the error
 occurring in the middle of the sample?

 > I tried to increase the MAX_SLICES size and compile it but it is
 behaving in the same way.

 But don't you agree that the output looks significantly nicer?
 (Although you should mention if you changed the source.)

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/628#comment:3>
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