Advanced Video Codec Main@L5.1 CABAC 1 ref frame

[eddiex666]

I am trying to play back a old file from a NVR.

Mediainfo sayes:
General
Complete name : EVENT_0.flv
Format : Flash Video
File size : 4.48 MiB
Duration : 36 s 78 ms
Overall bit rate : 1 042 kb/s

Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L5.1
Format settings : CABAC / 1 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 1 frame
Codec ID : 7
Duration : 36 s 78 ms
Bit rate : 994 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Stream size : 4.27 MiB (95%)
Color range : Limited

VLC (or other) do not play the file..

FFmpeg -i filename sayes.
...... many lines of .....
[h264 @ 0x55f54728b180] missing picture in access unit with size 9642
[h264 @ 0x55f54728b180] Invalid NAL unit size (-1186611698 > 9638).
[h264 @ 0x55f54728b180] Error splitting the input into NAL units.
[h264 @ 0x55f54728b180] Invalid NAL unit size (-1186620484 > 82645).
[h264 @ 0x55f54728b180] missing picture in access unit with size 82649
[h264 @ 0x55f54728b180] Invalid NAL unit size (-1186620484 > 82645).
[h264 @ 0x55f54728b180] Error splitting the input into NAL units.
[flv @ 0x55f54728a040] Could not find codec parameters for stream 0 (Video: h264, none, 1000 kb/s): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, flv, from 'EVENT.flv':
Metadata:
starttime : 1712777440
encrypt : 1
canSeekToEnd : true
Duration: 00:05:00.00, start: 0.000000, bitrate: 125 kb/s
Stream #0:0: Video: h264, none, 1000 kb/s, 12 fps, 30 tbr, 1k tbn
At least one output file must be specified


Any tips?

It can be a encrypted video file?

[eddiex666]

Any ideas?

we have 2 recorders that we would like to extract some data...

[eddiex666]

I have shared one file here in case someone will help.

I will pay $50 to the person that can extract the video

https://drive.google.com/file/d/1clCwPWPRbxFK4ziXxVseHCeCOR9SLDsM/view?usp=drive_link

[Alwyn]

You'll have to set up "anyone with the link" in Google Drive sharing. Can't get access at the moment.

[eddiex666]

now?

[Alwyn]

That's good. We have access.