[FFmpeg-trac] #3385(undetermined:new): hevc: decoding gives duplicated frame

[FFmpeg]

#3385: hevc: decoding gives duplicated frame
-------------------------------------+-------------------------------------
             Reporter:  maikmerten   |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 Decoding HEVC content appears to generate one more frame than actually
 contained in the HEVC file. For instance,
 http://media.xiph.org/video/derf/y4m/sign_irene_cif.y4m has 540 frames and
 when encoding to HEVC (either with x265 or ffmpeg using libx265) 540
 frames are reported to have been encoded.

 When decoding (either with YUV4MPEG or PNG) I get 541 frames -- the third
 frame is a copy of the second frame. When analyzing the stream in
 http://codecvisa.codecian.com/ I can confirm that the second and third
 frame are actually different, so this appears to be a decoder artifact.


 How to reproduce:
 {{{


 encoding:
 ---------

 % ffmpeg -y -v 9 -loglevel 99 -i sign_irene_cif.y4m irene.hevc 2>
 encode.txt
 ffmpeg version N-60615-gcbf09bb Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Feb 14 2014 15:40:32 with gcc 4.8 (Ubuntu/Linaro
 4.8.1-10ubuntu9)

 <log attached>
 <created HEVC file attached>

 decoding:
 ---------

 % ffmpeg -v 9 -loglevel 99 -i irene.hevc -f image2 irene%d.png 2>
 decode.txt
 ffmpeg version N-60615-gcbf09bb Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Feb 14 2014 15:40:32 with gcc 4.8 (Ubuntu/Linaro
 4.8.1-10ubuntu9)

 <log attached>

 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3385>
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