Viofo A329 Review

safedrivesolutions said:
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Disappointing, makes me think that the processor on the Redtiger can't handle two 4K streams at once so has to drop to 24fps. Also no HDR either and that tunnel test.

Too many deal breakers in the F77 and makes me think that they hope people will just not pick up on it and buy it anyway, because it's 4k front and 4k rear as they market it
 
Agie said:
Disappointing, makes me think that the processor on the Redtiger can't handle two 4K streams at once so has to drop to 24fps. Also no HDR either and that tunnel test.

Too many deal breakers in the F77 and makes me think that they hope people will just not pick up on it and buy it anyway, because it's 4k front and 4k rear as they market it
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@rcg530 please explain what you found
 
Panzer Platform said:
If it really turns out to be 24fps I think we need to make room on @Mtz infamous list.
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It is not 24fps, definitely 30, but duplicating some frames, and the sensor appears to be running at slightly the wrong speed, at least some of the time. It may take RCG630 a while to document what it is doing.
 
safedrivesolutions said:
@rcg530 please explain what you found
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The F77 footage is recorded at 30 fps. It appears to be some sort of buffer management issue (guess) causing the dropped/duplicated video frames. It looks like every second there’s something causing the dropping or duplicating of a video frame in the processing of the video frames from the image sensor (again guess). The first 20 seconds of the 3-minute video did not have any such problem and there were 30 unique frames every second.
 
rcg530 said:
The F77 footage is recorded at 30 fps. It appears to be some sort of buffer management issue (guess) causing the dropped/duplicated video frames. It looks like every second there’s something causing the dropping or duplicating of a video frame in the processing of the video frames from the image sensor (again guess). The first 20 seconds of the 3-minute video did not have any such problem and there were 30 unique frames every second.
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I don't doubt your results, but am interested in which software tools you used for this testing.
 
lufa6977 said:
I don't doubt your results, but am interested in which software tools you used for this testing.
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Ben sent me a 3-minute video file from the F77. I use the ffprobe utility to examine the video file's metadata (video stream codec, bitrate and other metadata). As my first visual test, I use the MPC-BE video player to play the video on my Windows 11 laptop I use for video editing. If the dash camera company provides its own video player, I use the dash camera company's video player to see if the playback quality is any different compared to the MPC-BE video player. In this example, I used the Redtiger v1.4.2 video player for Windows.

If I observe obvious stuttering/jumping during video playback [which I did], I use the MPC-BE video player to step through the video on a frame-by-frame basis. Detecting duplicated video frames is quite easy since two or more adjacent video frames will have the exact same video content. Detecting dropped video frames is a bit more challenging. You must observe what the "speed" of the vehicle would produce in a change to the visible content in the video frame. I declare it a "dropped" frame when the movement between frame 'n' and frame 'n+1' has a noticeable amount of excess movement [the visual image "jumps"] meaning 1 or more video frame(s) are missing.

After I've detected dropped or duplicated video frames using the MPC-BE video player and/or the company's video player, I import the raw video footage into Adobe Premiere Pro video editing software. I re-examine the video footage on a frame-by-frame basis to make sure the same behavior is being observed in Adobe Premiere Pro. When I detect a dropped or duplicated video frame, I place a timeline marker at each occurrence (green = duplicated, red = dropped).
 
Does anyone know what processor the F77 uses?

The dropped/duplicated frames issue seems a bit different to what we have previously seen from Novatek based cameras.
 
safedrivesolutions said:
Viofo A329 Dash Cam Review: The Best 4k Dashcam?
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Nice review video, with lots of info!

Must have taken a lot of time to make the review, but it took Viofo far more time add all those new features and new processor to the camera, the next A3?? should be a bit easier.
 
Agie said:
Wince when I see that SanDisk Extreme SSD mentioned or shown :/

Still watching the review now, pretty detailed and easy to follow too, good job!
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I uploaded it 3 times. It was done. Then i forgot to add bluetooth remote.

Then i uploaded it and had doubts on a few videos.

Edit again

So removed that and reuploaded again. 1in the morning it finished.

Good times
 
safedrivesolutions said:
I uploaded it 3 times. It was done. Then i forgot to add bluetooth remote.

Then i uploaded it and had doubts on a few videos.

Edit again

So removed that and reuploaded again. 1in the morning it finished.

Good times
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Has anyone tested with a Samsung T7 Shield here on DCT? May have seen someone mention it, but tossing up myself between getting that or something else like a Kingston for tests...
 
Agie said:
Has anyone tested with a Samsung T7 Shield here on DCT? May have seen someone mention it, but tossing up myself between getting that or something else like a Kingston for tests...
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Hello thats what i got
 
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