[SMK] Seek error

[Underground78]

The attached SMK file causes a seek error which is easily reproducible with ffplay (and probably ffmpeg since it affects other ffmpeg lib based tools).

> ffplay.exe IVYDES.SMK
ffplay version N-64796-gd5ee358 Copyright (c) 2003-2014 the FFmpeg developers
  built on Jul 19 2014 03:24:50 with gcc 4.8.3 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
able-libvidstab --enable-libvo-aacenc --enable-libvo-mrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
  libavutil      52. 92.101 / 52. 92.101
  libavcodec     55. 69.100 / 55. 69.100
  libavformat    55. 48.101 / 55. 48.101
  libavdevice    55. 13.102 / 55. 13.102
  libavfilter     4. 11.102 /  4. 11.102
  libswscale      2.  6.100 /  2.  6.100
  libswresample   0. 19.100 /  0. 19.100
  libpostproc    52.  3.100 / 52.  3.100
Input #0, smk, from 'IVYDES.SMK':  0KB vq=    0KB sq=    0B f=0/0
  Duration: 00:00:03.10, start: 0.000000, bitrate: 502 kb/s
    Stream #0:0: Video: smackvideo (SMK2 / 0x324B4D53), pal8, 200x136, 10 tbr, 10 tbn, 10 tbc
Seek to 43% ( 0:00:01) of total duration ( 0:00:03)       B f=0/0
IVYDES.SMK: error while seeking

I tried the file with RAD Video Tools without seeing anything strange but I don't know this format at all.

[Carl Eugen Hoyos]

Is this also reproducible with ffmpeg (the application)? Please only report ffplay issues if they are not reproducible with ffmpeg.

[Underground78]

I don't know how to try reproducing this issue with ffmpeg otherwise I would have reported with it.

[Carl Eugen Hoyos]

Did you try the following?

$ ffmpeg -ss 1 -i IVYDES.SMK -qscale 2 out.avi

[Underground78]

It does fail with IVYDES.SMK: could not seek to position 1.000.

[Elon Musk]

Fixed in 9d20f64f9c511302bb6f827206798c343a8c1ea2