Thanks for sending that variant of the V5.5.160 G3 firmware.
As a follow-on to this post I tested other versions, but they didn't seem to behave differently on video settings :
This is an initial review of the interesting Hikvision DS-2CD2087G2-L(U) ColorVu 4K 8MP IP bullet camera, linked to the marketing terms ColorVu 2.0 and Accusense 2.0 It’s a new model that’s already created a lot of interest on the forum. The intention is to not overlap or duplicate the various...
ipcamtalk.com
On the face of it, the G3 firmware is a bit bugged, as fps appears stuck at 30 on h.265, but other video settings seem to work OK.
I'm assessing fps on the
DS-2CD2347G2-LU using the 'Codec info' on VLC when pulling the video stream.
On all 3 variants of firmware below, using h.265 gives a 30fps value in VLC.
IPC_G3_EN_STD_5.5.160_210209
IPC_G3_EN_STD_5.5.160_201103
IPC_G3_EN_STD_5.5.134_200430
Accessing the DS-2CD2087G2-LU that's using IPC_G3_EN_STD_5.5.160_210209 gives the same result.
Linux mediainfo does not show the fps value on a downloaded clip from the DS-2CD2087G2-LU
Interestingly, single-framing through the downloaded clip suggests it's actually running at the configured fps value and not at the 30fps reported by VLC.
Four other Hikvision G1 cameras on h.265 show in VLC an fps value that matches what's in their configuration setting.
I checked whether the I-frame setting was working by dropping the max bitrate down to 256kbps and observing the video, where the time between the I-frame pulses could be judged.
Bitrate was measured by both VLC and network monitoring, the values were aligned.