[FFmpeg-user] Unplayable mjpeg2000 file

[Dale Powell]

Hi list.

I have this file from one of our video suppliers at work, it is the source file as the video is saved on their servers and comes with an unknown to me .blt extension. I have not managed to get it to play on anything, even changing or removing the file extension to try and get MIME type picked up from header information. Running ffprobe I get the following output. Can anybody let me know if there may be a way to view this file, and eventually probably want to create a batch script to convert to ProRes or similar...

Anyway; the output of: $ ffprobe ~/Desktop/20181118_PUNCHESTOWN_R5_YG
ffprobe version n4.1 Copyright (c) 2007-2018 the FFmpeg developers
  built with gcc 8.2.1 (GCC) 20180831
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-nvdec --enable-nvenc --enable-omx --enable-shared --enable-version3
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
[mjpeg_2000 @ 0x558a0f1a5040] Format mjpeg_2000 detected only with low score of 25, misdetection possible!
[jpeg2000 @ 0x558a0f1a6c00] SOC marker not present
    Last message repeated 19 times
[jpeg2000 @ 0x558a0f1a6c00] unsupported marker 0xFFB3 at pos 0x11F
[jpeg2000 @ 0x558a0f1a6c00] Invalid len 47104 left=538
[jpeg2000 @ 0x558a0f1a6c00] unsupported marker 0x0121 at pos 0x1B9
[jpeg2000 @ 0x558a0f1a6c00] Invalid len 27904 left=112
[jpeg2000 @ 0x558a0f1a6c00] SOC marker not present
    Last message repeated 4 times
[jpeg2000 @ 0x558a0f1a6c00] Invalid len 65366 left=777
[jpeg2000 @ 0x558a0f1a6c00] SOC marker not present
    Last message repeated 3 times
[jpeg2000 @ 0x558a0f1a6c00] Invalid len 54880 left=34
[jpeg2000 @ 0x558a0f1a6c00] SOC marker not present
    Last message repeated 1 times
[jpeg2000 @ 0x558a0f1a6c00] Invalid len 49877 left=121
[jpeg2000 @ 0x558a0f1a6c00] SOC marker not present
    Last message repeated 21 times
[jpeg2000 @ 0x558a0f1a6c00] Invalid len 53224 left=409
[jpeg2000 @ 0x558a0f1a6c00] SOC marker not present
    Last message repeated 44 times
[jpeg2000 @ 0x558a0f1a6c00] Invalid len 40743 left=56
[jpeg2000 @ 0x558a0f1a6c00] SOC marker not present
    Last message repeated 21 times
[mjpeg_2000 @ 0x558a0f1a5040] decoding for stream 0 failed
[mjpeg_2000 @ 0x558a0f1a5040] Could not find codec parameters for stream 0 (Video: jpeg2000, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mjpeg_2000, from '/home/me/Desktop/20181118_PUNCHESTOWN_R5_YG':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: jpeg2000, none, 25 fps, 25 tbr, 1200k tbn, 25 tbc

Here I am running Manjaro Linux on my personal laptop but finally we would hope to be converting on OSX.

Kind regards, Dale.