Bitrate Info no avaible for DNXHR

[oupen]

Summary of the bug:
ffprobe can't calculate the bitrate of video stream with DNXHR codec :

bit_rate=N/A

How to reproduce:

% ffprobe -i /Users/debit3.mxf -show_streams
ffprobe version 5.0 Copyright (c) 2007-2022 the FFmpeg developers
  built with Apple clang version 13.0.0 (clang-1300.0.29.30)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/5.0 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
  libavutil      57. 17.100 / 57. 17.100
  libavcodec     59. 18.100 / 59. 18.100
  libavformat    59. 16.100 / 59. 16.100
  libavdevice    59.  4.100 / 59.  4.100
  libavfilter     8. 24.100 /  8. 24.100
  libswscale      6.  4.100 /  6.  4.100
  libswresample   4.  3.100 /  4.  3.100
  libpostproc    56.  3.100 / 56.  3.100
[mxf @ 0x7fe2edf05bc0] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, mxf, from '/Users/paulkaelblen/debit3.mxf':
  Metadata:
    operational_pattern_ul: 060e2b34.04010101.0d010201.01010900
    uid             : adab4424-2f25-4dc7-92ff-29bd000c0000
    generation_uid  : adab4424-2f25-4dc7-92ff-29bd000c0001
    company_name    : FFmpeg
    product_name    : OP1a Muxer
    product_version_num: 59.16.100.0.0
    product_version : 59.16.100
    application_platform: Lavf (darwin)
    product_uid     : adab4424-2f25-4dc7-92ff-29bd000c0002
    toolkit_version_num: 59.16.100.0.0
    material_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97600
    material_package_name: Invincible VA2051_VI20_28122021_full
    timecode        : 01:00:00:00
  Duration: 00:00:30.00, start: 0.000000, bitrate: 740765 kb/s
  Stream #0:0: Video: dnxhd (DNXHR HQX), yuv422p10le(tv, bt709, progressive), 3840x2160, SAR 1:1 DAR 16:9, 25 tbr, 25 tbn
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:1: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:2: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:3: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:4: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:5: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:6: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:7: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:8: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:9: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
  Stream #0:10: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001376665952947134C97666590052947134C97601
      file_package_name: Invincible VA2051_VI20_28122021_full
[STREAM]
index=0
codec_name=dnxhd
codec_long_name=VC3/DNxHD
profile=DNXHR HQX
codec_type=video
codec_tag_string=[0][0][0][0]
codec_tag=0x0000
width=3840
height=2160
coded_width=3840
coded_height=2160
closed_captions=0
film_grain=0
has_b_frames=0
sample_aspect_ratio=1:1
display_aspect_ratio=16:9
pix_fmt=yuv422p10le
level=-99
color_range=tv
color_space=bt709
color_transfer=bt709
color_primaries=bt709
chroma_location=unspecified
field_order=progressive
refs=1
id=N/A
r_frame_rate=25/1
avg_frame_rate=0/0
time_base=1/25
start_pts=0
start_time=0.000000
duration_ts=750
duration=30.000000
bit_rate=N/A
max_bit_rate=N/A

ffmpeg version
built on ffmpeg 5

Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker.