Viofo A129 Pro Duo Bitrate configuration doesn't work

[SuperCurro]

Hello, I am new with this camera and I have been tested all the features (pending parking that is in progress).

Conditions:

• The camera has the firmware v2.4 from the origin, but I have also tested the V1.6 with the same result.
• USB plug in the camera not in the GPS (GPS works well).
• Front 4k30p and Rear 1080p30p
• H264 and H265 tested the same result and video quality except for the bitrate 60mbps vs 50mbps.
• HDR ON vs OFF same result.

Regardless of the configuration through the app or camera of bitrate (min, low, medium, high or maximum) the bitrate and the quality is exactly the same for the front 60 or 50 (H264vs H265) and for the rear 15 Mbps.

It is not a deal-breaker as the quality is quite low (very low) for 60mbps and 30 fps (especially with the WDR with a lot of artefacts and colour degradation) but perhaps we can save the same space with only 20 Mbps.

The best configuration during the day I found is 4k30p -1.0 EV front camera and -0.3 EV rear camera, WDR On for day and night.
Apart from this small low-quality high bitrate, the camera works well and it is probably one of the best in the market, so no many alternatives.

 

[VIOFO-Support]

Thanks for your review. That may help others in the future.

 

[SuperCurro]

Thanks for your review. That may help others in the future.

Do you plan to fix this issue, many people would like to have H265 50 Mbps, 30 Mbps, 20 Mbps, 10 Mbps... in my testing when I recode the videos with a lower bit rate than 50mps the loss quality is negligible, so it is worth it to drop down to 30 Mbps or 20 Mbps for most users, if not you are forced to use 256 GB card.

 

[xiongguoy]

The option is already there under bitrate:

Bitrate	H.264	H.265
Low	15.3 Mb/s	13.7 Mb/s
Medium	30.3 Mb/s	22.4 Mb/s
High	42.4 Mb/s	34.5 Mb/s
Max	60.3 Mb/s	52.4 Mb/s

The advantage of H.265 over H.264 is to give you higher quality with the same bitrate, or same quality with lower bitrate.
H.265 requires more processing power to encode/decode, so if your camera is shutting off due to heat from hot weather you may want to switch back to H.264.

 

[SuperCurro]

But when you change the option it just records always with the same bitrate, the one I attached in the first post.