On Nokia 8010 (S905-X4 with DV license) I’m seeing the same thing.
It shows as “interlacing: hardware” and cannot be changed in the video settings (greyed out) where it says “deinterlacing mode: off”.
This is on ng-21.1 nightly.
Format : Matroska
Format version : Version 4
File size : 2.92 GiB
Duration : 49 min 29 s
Overall bit rate : 8 444 kb/s
Frame rate : 25.000 FPS
Encoded date : 2024-10-06 15:39:30 UTC
Writing application : mkvmerge v82.0 ('I'm The President') 64-bit
Writing library : libebml v1.4.5 + libmatroska v1.7.1
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4
Format settings : 4 Ref Frames
Format settings, CABAC : No
Format settings, Reference frames : 4 frames
Format settings, GOP : M=4, N=15
Codec ID : V_MPEG4/ISO/AVC
Duration : 43 min 59 s
Bit rate mode : Constant
Bit rate : 9 272 kb/s
Nominal bit rate : 10 000 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : MBAFF
Scan type, store method : Interleaved fields
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.179
Stream size : 2.85 GiB (98%)
Writing library : x264 core 152 r2245
Encoding settings : cabac=0 / ref=4 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=4 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=1 / threads=9 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=tff / bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=0 / keyint=15 / keyint_min=1 / scenecut=0 / intra_refresh=0 / rc_lookahead=15 / rc=abr / mbtree=1 / bitrate=7738 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=10000 / vbv_bufsize=2400 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Language : English
Default : Yes
Forced : No
Color range : Limited
MediaInfo of the problematic file above.
The sample itself:
sample-interlacing.mkv (9.8 MB)