Yes, the resizing of the video streams is obvious. The part that I was curious about is the fact that the camera-geneated headers are in once case rescaled/compressed, where the other does shsow the almost "full-resolution" one. the only thing I can think about is that some cameras are providing this in different streams (Vivotek and thier OBMs?), while with others it's handled as a part of the video stream.Pucco wrote:It looks like the NAS actually is compressing the video before sending it to VMobile.
As you can see on the image about 4.5 Mbit/s is transferred from the two cameras to the NAS.
When I start VMobile with 1 camera shown, the CPU usage for nvrd goes up 4-5% and 550 kbit/s data i transmitted.
If I then selects two cameras to show, CPU is up 9-10% and data rate it 1.1 Mbit/s.
Increasing to 3 or more displayed cameras will shrink the images and reduce CPU and data.
Might be caused by the rescaling of your camera streams. I'm still missing sosme more detail on your cameras, the camera, and the recording configuration.Pucco wrote:There is definitely a problem with the combination of coding in Qnap and decoding in Android when using VMobile. Where the error is created I can't say.
Well - the key problem is that it's aimed for mobile access - and here you can't build on having at least a constant 4 Mbit/s or more available - what wowuld be required when forwarding the full resolution and picture rate as configured - compare to the bandwidth when the full surveillance Station is up on IE9. As well, not all NAS where Surveillance is supported bring the ame CPU power - sos the variation options are limited.Pucco wrote:One other thing is that VMobile is not created for the high resolution of a notepad. The whole app is up sampled and fuzzy.
Oh yes, you are perfectly right - instead of using the full available display space. As there is sooooooooooooooo much on these devicesPucco wrote:Regarding the fuzzy look of VMobile i didn't mean the video but the surrounding graphics like text, buttons and background patterns.
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