[FFmpeg-trac] #7950(undetermined:new): Decode error with skip_frame set and a specific file

FFmpeg trac at avcodec.org
Mon Jun 10 13:07:06 EEST 2019


#7950: Decode error with skip_frame set and a specific file
-------------------------------------+-------------------------------------
             Reporter:  ocrosoft     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Download media file here:
 http://andytather.co.uk/panda/Files/Video/HDR/LG%20Chess%20HDR.mp4

 {{{
 .\ffplay.exe -skip_frame "bidir" -i "D:\video\LG Chess HDR.mp4"
 }}}

 When set "skip_frame" arg, and it's value >= noref, ffplay may display
 some frames incorrect, like this:
 [[Image(https://www.ocrosoft.com/wp-
 content/uploads/2019/06/2019061009451555.png)]].
 Other player use ffmpeg (like mpv player), the permormance is worse than
 ffplay, after display a "grey" frame, some mosaic remained(disappear about
 1 seconds).
 And more, the command line print this error message: " Could not find ref
 with POC xxx"(xxx mis a number).

 This reproduce rate is 100% for this file.
 Another video "LG Cymatic Jazz HDR10.mp4" download from
 "http://andytather.co.uk/panda/videogallerypage.aspx" too.
 But other download from above page, it's not LG's video, ffplay and mpv
 play it good. May LG* video has some encode error?

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7950>
FFmpeg <https://ffmpeg.org>
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