-noautorotate -display_rotation 0 passes through rotation metadata with JPEG inputs

[Wes Castro]

Summary of the bug:
When invoking FFmpeg with -noautorotate -display_rotation 0 using a JPEG input that contains Orientation EXIF metadata tag written to an MP4 output, the output will have a display_matrix indicating a rotation starting with FFmpeg 7.1. It is expected that the output will not be physically rotated and not contain any display_matrix. The issue doesn't occur with FFmpeg 7.0 where the output correctly doesn't have a display_matrix

How to reproduce:
Use attached test file (1920x1080 JPEG image with Orientation=6 in EXIF metadata (rotated 90 degs CCW)

ffmpeg -noautorotate -display_rotation 0 -i test_image_rotated.jpg output.mp4

FFprobe of output produced by FFmpeg 7.0:

ffprobe version n7.0 Copyright (c) 2007-2024 the FFmpeg developers
  built with gcc 11 (GCC)
  configuration: --enable-gpl
  libavutil      59.  8.100 / 59.  8.100
  libavcodec     61.  3.100 / 61.  3.100
  libavformat    61.  1.100 / 61.  1.100
  libavdevice    61.  1.100 / 61.  1.100
  libavfilter    10.  1.100 / 10.  1.100
  libswscale      8.  1.100 /  8.  1.100
  libswresample   5.  1.100 /  5.  1.100
  libpostproc    58.  1.100 / 58.  1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/wescastro/out.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf61.1.100
  Duration: 00:00:00.04, start: 0.000000, bitrate: 8507 kb/s
  Stream #0:0[0x1](und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 8335 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
        encoder         : Lavc61.3.100 mpeg4

FFprobe of output produced by FFmpeg 7.1

ffprobe version n7.1 Copyright (c) 2007-2024 the FFmpeg developers
  built with gcc 11 (GCC)
  configuration: --enable-gpl
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.100 / 61. 19.100
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/wescastro/out.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf61.7.100
  Duration: 00:00:00.04, start: 0.000000, bitrate: 9138 kb/s
  Stream #0:0[0x1](und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 8335 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
        encoder         : Lavc61.19.100 mpeg4
      Side data:
        ICC Profile
        displaymatrix: rotation of -90.00 degrees

FFmpeg 7.1.1 and 7.2-dev produce the same output with displaymatrix: rotation of -90.00 degrees. On the master branch (5b1301004bdade13e3fee22081459e339ddd2637) the command line is completely broken and exits with a failure:

ffmpeg version N-120020-g5b1301004b Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 11 (GCC)
  configuration: --enable-gpl
  libavutil      60.  3.100 / 60.  3.100
  libavcodec     62.  4.100 / 62.  4.100
  libavformat    62.  1.100 / 62.  1.100
  libavdevice    62.  0.100 / 62.  0.100
  libavfilter    11.  0.100 / 11.  0.100
  libswscale      9.  0.100 /  9.  0.100
  libswresample   6.  0.100 /  6.  0.100
Input #0, image2, from 'test_image_rotated.jpg':
  Duration: 00:00:00.04, start: 0.000000, bitrate: 9414 kb/s
  Stream #0:0: Video: mjpeg (Progressive), yuvj444p(pc, bt470bg/unknown/unknown), 1920x1080, 25 fps, 25 tbr, 25 tbn
    Side data:
      displaymatrix: rotation of -0.00 degrees
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg4 (native))
Press [q] to stop, [?] for help
[vf#0:0 @ 0x300b080] Task finished with error code: -17 (File exists)
[vf#0:0 @ 0x300b080] Terminating thread with return code -17 (File exists)
[vost#0:0/mpeg4 @ 0x300ddc0] [enc:mpeg4 @ 0x300e7c0] Could not open encoder before EOF
[vost#0:0/mpeg4 @ 0x300ddc0] Task finished with error code: -22 (Invalid argument)
[vost#0:0/mpeg4 @ 0x300ddc0] Terminating thread with return code -22 (Invalid argument)
[out#0/mp4 @ 0x3007840] Nothing was written into output file, because at least one of its streams received no packets.
frame=    0 fps=0.0 q=0.0 Lsize=       0KiB time=N/A bitrate=N/A speed=N/A elapsed=0:00:00.01    
Conversion failed!

[James]

Should be fixed in 70a6ad6c743e8f36921755cacff2726825021b8a