New MLV file not supported

[Andrew-R]

Summary of the bug: Some test files from Magic lantern user forums fails
How to reproduce:

Download file from https://www.dropbox.com/s/p2j112gyph5ywzu/ElgersburgBHF.zip?dl=0

% /dev/shm/cinelerra/cinelerra-5.1/thirdparty/ffmpeg-6.1/ffprobe /dev/shm/ElgersburgBHF/ElgersburgBHF.MLV
[mlv @ 0xc758a80] unknown video class 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 implemented.
[mlv @ 0xc758a80] If you want to help, upload a sample of this file to https://streams.videolan.org/upload/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
Ignoring attempt to set invalid timebase 1/0 for st:1
[mlv @ 0xc758a80] unsupported tag RAWC, size 16
[mlv @ 0xc758a80] unsupported tag DISO, size 8
[mlv @ 0xc758a80] unsupported tag DARK, size 7862468
[mlv @ 0xc758a80] unsupported tag VERS, size 102
[mlv @ 0xc758a80] unsupported tag VERS, size 144
[mlv @ 0xc758a80] unsupported tag VERS, size 172
[mlv @ 0xc758a80] unsupported tag VERS, size 132
[mlv @ 0xc758a80] unsupported tag VERS, size 160
[mlv @ 0xc758a80] unsupported tag VERS, size 140
[mlv @ 0xc758a80] unsupported tag VERS, size 164
[mlv @ 0xc758a80] unsupported tag VERS, size 156
[mlv @ 0xc758a80] unsupported tag VERS, size 144
[mlv @ 0xc758a80] unsupported tag VERS, size 164
[mlv @ 0xc758a80] unsupported tag VERS, size 140
[mlv @ 0xc758a80] Opening '/dev/shm/ElgersburgBHF/ElgersburgBHF.M00' for reading
[mlv @ 0xc758a80] Stream #0: not enough frames to estimate rate; consider increasing probesize
[mlv @ 0xc758a80] Could not find codec parameters for stream 0 (Video: none (BIT[16] / 0x10544942), bayer_rggb16le, 1920x2340): unknown codec
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, mlv, from '/dev/shm/ElgersburgBHF/ElgersburgBHF.MLV':
  Metadata:
    guid            : 0x5de63cb3069b16ba
    cameraName      : Canon EOS 5D Mark III
    cameraModel     : 2147484293
    cameraSerial    : 122A888172
    isoMode         : manual
    isoValue        : 1600
    isoAnalog       : 104
    digitalGain     : 0
    shutterValue    : 29982
    focalLength     : 50
    focalDist       : 0
    aperture        : 140
    stabilizerMode  : 0
    autofocusMode   : 3
    flags           : 0
    lensID          : 198
    lensName        : EF50mm f/1.4 USM
    lensSerial      : 000000000
    wb_mode         : 0
    kelvin          : 2500
    wbgain_r        : 491
    wbgain_g        : 1024
    wbgain_b        : 638
    wbs_gm          : 0
    wbs_ba          : 0
    time            : 2021-01-06 19:40:27
  Duration: 00:00:00.21, start: 0.000000, bitrate: 1082282 kb/s
  Stream #0:0: Video: none (BIT[16] / 0x10544942), bayer_rggb16le, 1920x2340, 23.98 tbr, 23.98 tbn
  Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels, s16, 1536 kb/s
Unsupported codec with id 0 for input stream 0

ffmpeg version 6.1
built on Linux Slackware 15.0 i586