[FFmpeg-user] Problems with opening some DPX files

Christoph Gerstbauer christophgerstbauer at gmail.com
Thu Mar 19 13:47:56 CET 2015


I am testing the transcoding of different DPX files from different sources.

I have here 2 files which cannot be opened by ffmpeg.


When I open the files with ImageMagick and GraphicsMagick they look 
distorted (can be seen in the png from the zip file).
Opening the files with Photoshop they look also very weird but different 
to GM and IM. (see PNGs in zip)

Any ideas whats going on here?

Best Regards


C:\Users\gersti>ffmpegnew -i "I:\DPX\_DPX examples\Bojan\0090000.dpx"
ffmpeg version N-70803-g0f16dfd Copyright (c) 2000-2015 the FFmpeg 
   built with gcc 4.9.2 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads 
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r 
--enable-gnutls --enable-iconv --enable-libass --enable-libblu
ray --enable-libbs2b --enable-libcaca --enable-libfreetype 
--enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug 
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
b --enable-libopenjpeg --enable-libopus --enable-librtmp 
--enable-libschroedinger --enable-libsoxr --enable-libspeex 
--enable-libtheora --enable-libtwolame --enable-libvidstab 
--enable-libvo-aacenc --
enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx 
--enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 
--enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enab
   libavutil      54. 20.100 / 54. 20.100
   libavcodec     56. 28.100 / 56. 28.100
   libavformat    56. 25.101 / 56. 25.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 12.100 /  5. 12.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
[dpx @ 0000000002cf7c40] Packing 2 is not implemented. 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 impl
[dpx_pipe @ 0000000002ce65e0] decoding for stream 0 failed
[dpx_pipe @ 0000000002ce65e0] Could not find codec parameters for stream 
0 (Video: dpx, none, 2048x1520): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' 
I:\DPX\_DPX examples\Bojan\0090000.dpx: could not find codec parameters
Input #0, dpx_pipe, from 'I:\DPX\_DPX examples\Bojan\0090000.dpx':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: dpx, none, 2048x1520, 25 tbr, 25 tbn, 25 tbc
At least one output file must be specified

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