[FFmpeg-trac] #5707(avformat:new): seeking with apng does not work

[FFmpeg]

#5707: seeking with apng does not work
-------------------------------------+------------------------------------
             Reporter:  shekh        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  unspecified  |               Resolution:
             Keywords:  apng seek    |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+------------------------------------

Comment (by shekh):

 I dont know how to test this with ffmpeg.
 I tried ffplay:
 right click with mouse (seek to percentage) does not work and reports some
 error:

 {{{
 ffplay version N-79690-g78baa45 Copyright (c) 2003-2016 the FFmpeg
 developers
   built with gcc 5.3.0 (GCC)
   configuration: --disable-static --enable-shared --enable-gpl --enable-
 version3
  --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig
 --ena
 ble-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-
 libbluray --e
 nable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme
 --enable-lib
 gsm --enable-libilbc --enable-libmodplug --enable-libmfx --enable-
 libmp3lame --e
 nable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable
 -libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy
 --enable-l
 ibsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-
 libvids
 tab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-
 libwavpa
 ck --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs
 --enable-
 libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
   libavutil      55. 23.100 / 55. 23.100
   libavcodec     57. 38.100 / 57. 38.100
   libavformat    57. 34.103 / 57. 34.103
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 44.100 /  6. 44.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, apng, from 'e:\shift_dev\data\ab.png':B sq=    0B f=0/0
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: apng, rgba(pc), 100x100, 13.33 fps, 13.33 tbr,
 100k tbn
 [apng @ 04bb0b20] In-stream tag=[38][253]9[201] (0xC939FD26) len=10262462
 is not
  implemented. Update your FFmpeg version to the newest one from Git. If
 the prob
 lem still occurs, it means that your file has a feature which has not been
 imple
 mented.
 [apng @ 04bb0b20] If you want to help, upload a sample of this file to
 ftp://upl
 oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list.
 (ffmpeg-deve
 l at ffmpeg.org)
 [apng @ 04bb0b20] In-stream tag=[0][0][0][0] (0x00000000) len=0 is not
 implement
 ed. Update your FFmpeg version to the newest one from Git. If the problem
 still
 occurs, it means that your file has a feature which has not been
 implemented.
 [apng @ 04bb0b20] If you want to help, upload a sample of this file to
 ftp://upl
 oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list.
 (ffmpeg-deve
 l at ffmpeg.org)
 }}}

 Then this output repeats infinitely until I press esc.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5707#comment:2>
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