Database Develop

Capturing seminar while taking notes

So, I really want to be able to attend a seminar with a whiteboard or projected powerpoint... record the video and audio and text on the whiteboard - WHILE using Note to take handwritten and/or typed notes.
My solution - thought I'd share this accessory structure for recording:
1 piece double sided clear 3M stickies;
1 right angle prism (about 5-8mm) with an aluminized hypotenuse (about $5 on ebay).
Then I just apply the prism to the sticky and on to the front facing camera.
Works GREAT for taking pictures/video while the note stays flat on the desk. Also great for traffic black box video with note 2 on the dash for heads up display hud.
Problems to solve:
1) background video/audio recording THAT ALLOWS S-memo or Polaris Office or similar to be on (still looking - advice greatly appreciated).
2) self-portrait camera shows orientation on screen correctly, but it transposes or mirror flips the image when saving such that text on powerpoint is mirror reversed.
3) FFC has no way to zoom in stock app.

willfck4beer said:
Problems to solve:
1) background video/audio recording THAT ALLOWS S-memo or Polaris Office or similar to be on (still looking - advice greatly appreciated).
2) self-portrait camera shows orientation on screen correctly, but it transposes or mirror flips the image when saving such that text on powerpoint is mirror reversed.
3) FFC has no way to zoom in stock app.
Click to expand...
Click to collapse
Thats pretty creative.
1) You could setup Multi windows to have camera and S-memo running at the same time, then just minimise( drag the divider bar) the window with the camera. (not sure if that would work)
2) Use any video editing program you have (i.e Windows Movie Maker) and use that to flip the video to how it should be
3) stick the prism to the main rear facing camera, and use that to record and be able to zoom. If the video appears mirrored, then use the video editing program to un-mirror it.

Optimistic Pessimist said:
Thats pretty creative.
1) You could setup Multi windows to have camera and S-memo running at the same time, then just minimise( drag the divider bar) the window with the camera. (not sure if that would work)
2) Use any video editing program you have (i.e Windows Movie Maker) and use that to flip the video to how it should be
3) stick the prism to the main rear facing camera, and use that to record and be able to zoom. If the video appears mirrored, then use the video editing program to un-mirror it.
Click to expand...
Click to collapse
Thanks for your help! I appreciate it.
Unfortunately, I'm on stock because this is a work phone - waiting for the warranty to expire before rooting so can't add camera app to multiwindow yet. This was a great idea though!
The rear camera was a great idea too but it wouldn't let me keep the liveview comfortably on the desk for writing.

https://www.youtube.com/watch?v=RVuKlVKZgQc&feature=youtube_gdata_player
This background configurable Secret Video Recorder SVR seems almost perfect;
Seems to lack orientation setting in exif metadata though. Would be tits if I could control horizontal and vertical (maybe with orientation lock?) mirroring flipping transpose live on android itself rather than reencoding on desktop pc in post processing.

willfck4beer said:
https://www.youtube.com/watch?v=RVuKlVKZgQc&feature=youtube_gdata_player
This background configurable Secret Video Recorder SVR seems almost perfect;
Seems to lack orientation setting in exif metadata though. Would be tits if I could control horizontal and vertical (maybe with orientation lock?) mirroring flipping transpose live on android itself rather than reencoding on desktop pc in post processing.
Click to expand...
Click to collapse
Seems like a cool app. Might come in handy

willfck4beer said:
Thanks for your help! I appreciate it.
Unfortunately, I'm on stock because this is a work phone - waiting for the warranty to expire before rooting so can't add camera app to multiwindow yet. This was a great idea though!
The rear camera was a great idea too but it wouldn't let me keep the liveview comfortably on the desk for writing.
Click to expand...
Click to collapse
Don't sweat it man, no one at your work will even know that your phone is rooted. Well, that is unless they're into rooting phones themselves and really dig into your phones information.
1-You shouldn't let your coworkers dig into your phone like that.
2-If they're into rooting phones, then they won't care anyways.
Go ahead and take the plunge man, you'll be glad that you did!!!
SwiftKey'ed from my White Sprint Note 2 using XDA Premium

Look at an app called Arcnote. Does exactly what your want and more

This is a good point. Just haven't had the need yet. And I'm concerned about a hardware failure... warranty not being honored due to root... and having to pay our have firm pay. Maybe this is obviated by insurance though?

Arcnote is awesome but seems to require focus and manual capture of pictures of slides.
Secret video recorder svr from zero noise dev team is exactly what I was looking for for background video and audio recording. This thing is sweet! Five stars. Arc note would be badass if it could post process video... detecting each slide transition, capturing a photo and then doing its auto zoom, keystone magic. Thank you for the recommendation nonetheless!

willfck4beer said:
This is a good point. Just haven't had the need yet. And I'm concerned about a hardware failure... warranty not being honored due to root... and having to pay our have firm pay. Maybe this is obviated by insurance though?
Click to expand...
Click to collapse
Solutions for your warranty problem :
1. Use a a one click root & unroot program called framaroot v 1.4.1 : See this link for tutorials - https://www.youtube.com/watch?v=G1mQz4n-Z-M
download : http://forum.xda-developers.com/showthread.php?t=2130276
3. When ever your sending this phone for any repair just one click unroot.
2. Use Trainagle away app from play store to reset your binary ( this is what your warranty guys check) - Now you are back to factory Cheers !

Thanks good call

Everything you'll ever need to know about the camera of the Note4

Guys,
I've started a multi-part article series discussing how the Note4's camera should be used (and how it compares to other high-end phones, cameraphones or even standalone cameras).
The first two parts in the series have already been published:
Part I: http://www.dpreview.com/forums/thread/3781966
Part II: http://www.dpreview.com/forums/thread/3782300
This series will be of particular interest to Snapdragon 805 users. Exynos users, at the moment, will find the series less interesting, as third-party apps, currently, can't access the (almost) non-processed image stream and they, consequently, can't export non-overprocessed images.
EDIT (2015/01/17): Part III is published on HDR: http://www.dpreview.com/forums/thread/3782850
EDIT (2015/01/24): a brand new writeup is here at XDA; you should start with it instead of the previous ones: http://forum.xda-developers.com/note-4/general/shooting-light-best-image-quality-note-4-t3012008

Great. Thank you
Skickat från min iPhone 6 Plus med Tapatalk

So which app we must use for normal photos ?

How to manually change shutter speed to 1/8s in Snap Camera HDR app? Thx

masterchif92 said:
So which app we must use for normal photos ?
Click to expand...
Click to collapse
Basically, if you have an Exynos device, the stock Camera app unless
- you're absolutely sure you don't need shutter speeds under 1/30s (the restriction of many apps, incl. FV-5) and
- you do need the on-screen controls of that app.
Otherwise, the image quality will be the same so there's no advantage in using any third-party app for shooting, as opposed to the Snapdragon case.
If you have a Snapdragon device, you can get far-far better image quality out of your camera in both still and video shooting mode because of the lack of noise reduction and oversharpening. Then, using third-party apps like Snap camera HDR is preferable, assuming, of course, you don't need features like dual camera.

Menneisyys said:
Basically, if you have an Exynos device, the stock Camera app unless
- you're absolutely sure you don't need shutter speeds under 1/30s (the restriction of many apps, incl. FV-5) and
- you do need the on-screen controls of that app.
Otherwise, the image quality will be the same so there's no advantage in using any third-party app for shooting, as opposed to the Snapdragon case.
If you have a Snapdragon device, you can get far-far better image quality out of your camera in both still and video shooting mode because of the lack of noise reduction and oversharpening. Then, using third-party apps like Snap camera HDR is preferable, assuming, of course, you don't need features like dual camera.
Click to expand...
Click to collapse
I have the s805 model....there are some settings with this camera to set? Or it will be good with the stock one ?

cornelito said:
How to manually change shutter speed to 1/8s in Snap Camera HDR app? Thx
Click to expand...
Click to collapse
You can't - the pre-Lollipop API doesn't let for directly setting the shutter speed. The device will automatically use 1/8s when there's little light.
You'll need to make sure you do enable the Photo > “Samsung Camera Mode” checkbox; otherwise, it will NOT be able to go under 1/15s, resulting in a complete loss of no less than 1EV. At least on Snapdragons; I couldn't test this on Exynos devices.

masterchif92 said:
I have the s805 model....there are some settings with this camera to set? Or it will be good with the stock one ?
Click to expand...
Click to collapse
Then, if you really want to see in which cases third-party apps can produce significantly better images, you really want to compare my example shots of the stock app to those of, say, Snap camera HDR - see the crops in my article.
Basically, the stock Camera app applies far too much noise reduction and oversharpening, pretty much ruining fine detail and introducing ugly oversharpening halos. Photos produced by third-party apps, incl. Snap camera HDR, are far more natural.

Just writing my HDR article. The first two parts of the new article is already published: http://www.dpreview.com/forums/thread/3782850

Very nice articles. Thanks for doing them.

Is there any way to get rid of the cruddy yellowish look I get on low light photos on my phone? My wife's phone doesn't have this at all, and both of the Note 4s that I have had do. I've been very unimpressed with the low light abilities of this phone, so far. I'd love a solution that doesn't involve sending the phone in to maybe be fixed.

usmaak said:
Is there any way to get rid of the cruddy yellowish look I get on low light photos on my phone? My wife's phone doesn't have this at all, and both of the Note 4s that I have had do. I've been very unimpressed with the low light abilities of this phone, so far. I'd love a solution that doesn't involve sending the phone in to maybe be fixed.
Click to expand...
Click to collapse
Have you tried setting "White balance" to "Incandescent" in Settings?

Muyfa666 said:
Very nice articles. Thanks for doing them.
Click to expand...
Click to collapse
Thanks! Today, I've continued working on the HDR article.

Thanks for your work. I don't know if I understand correctly but the play store version is 6.2.0. Can this version take pictures under 1/15s? Or we still need a test version for this?
Thanks

zabumba said:
Thanks for your work. I don't know if I understand correctly but the play store version is 6.2.0. Can this version take pictures under 1/15s? Or we still need a test version for this?
Thanks
Click to expand...
Click to collapse
Yup, 6.2.0 has just been released. I've tested it; it works flawlessly, at least on Snapdragon:
1/8s is supported
almost-RAW output is supported

Hi there. It's a nice report! However i do have some input
1. The stock camera does do 1/4s in rare occasions , happens for me when I do shots in not-well lit conditions and yet insufficient for camera to engage in night mode.
2. I have no idea if its just me, but night mode does not downsize my photos to 6mpix no matter how dark the scene is. It still stays at 5312x2998. N910G here. Details of photos on poorly lit scenes do not have significantly worse detail for me as compared to well lit ones and file size is in fact larger by a bit. (the room is still not too dark though).
IMO the stock camera does some sort of multi frame noise averaging technique (similar to canon's and sony's "Hand-held Twilight") to reduce noice.

andalism said:
Hi there. It's a nice report! However i do have some input
1. The stock camera does do 1/4s in rare occasions , happens for me when I do shots in not-well lit conditions and yet insufficient for camera to engage in night mode.
Click to expand...
Click to collapse
Wow! Haven't ever seen such an image from my European Snap 805 (F) model. Could you post the original to, say, flickr, or, here as an attachment? (Of course, feel free to remove the location info first from the EXIF data.)
IMO the stock camera does some sort of multi frame noise averaging technique (similar to canon's and sony's "Hand-held Twilight") to reduce noice.
Click to expand...
Click to collapse
It'd, then, exhibit a much higher probability of camera shake / stitching errors. The relative noiseless-ness is because of the very-very strong noise reduction. (Or, maybe, because of the "G" model you have is somewhat different from the European one? I wouldn't think so - after all, both are Snapdragon-based.)

Menneisyys said:
Have you tried setting "White balance" to "Incandescent" in Settings?
Click to expand...
Click to collapse
I've tried all of the settings in the phone. Nothing makes the problem go away. Using the same settings as my wife's phone, and there's a huge difference in the quality of indoor pictures between the three phones.
It does take quite nice outdoor pictures.

usmaak said:
I've tried all of the settings in the phone. Nothing makes the problem go away. Using the same settings as my wife's phone, and there's a huge difference in the quality of indoor pictures between the three phones.
It does take quite nice outdoor pictures.
Click to expand...
Click to collapse
Could you take low-light images with an LCD computer screen displaying white
- without(!) using f.lux or other tools to decrease the white balance (this is equal to about 7000K) and
- at both a very low brightness level (to "kick in" night mode) and a high one (to avoid night mode)
with both phones? Preferably in "auto" and "incandescent" WB modes on both phones.

Menneisyys said:
Wow! Haven't ever seen such an image from my European Snap 805 (F) model. Could you post the original to, say, flickr, or, here as an attachment? (Of course, feel free to remove the location info first from the EXIF data.)
It'd, then, exhibit a much higher probability of camera shake / stitching errors. The relative noiseless-ness is because of the very-very strong noise reduction. (Or, maybe, because of the "G" model you have is somewhat different from the European one? I wouldn't think so - after all, both are Snapdragon-based.)
Click to expand...
Click to collapse
Unfortunately, I deleted those photos as it was blurry due to the unexpectedly low shutter speeds or that the picture sucked. I will post if I can reproduce that setting again.
As for the noise averaging mode...
1. It will not cause camera shake/stitching errors even if you hold still. Why? If you were to shake your phone violently, the software is smart enough to abandon image stacking altogether & the final image produced is the result of just 1 picture that has a little fine bit of extra noise reduction maybe.
2.Samsung's night mode is not well documented, unfortunately, despite them having this mode since Galaxy SIII.
However, the answer lies hidden in one of their support page for galaxy S4
http://www.samsung.com/us/support/howtoguide/N0000003/10094/120418/SGH-I337ZBMATT
"Night: Take photos by combining them to get a brighter, clearer photo in low light, without flash."
Now, you may think that perhaps this mode only applies to the S4's night mode, so I did a mini test.
(click on photos to zoom in)
(1)
Image taken with night mode
(2)
Image taken WITHOUT night mode under same conditions (This is done by tricking the camera to first take a photo in bright light,continue holding down the shutter button to engage burst shot, quickly direct phone to subject and wait for phone to adjust to the right exposure)
(3)
Same image from (2), but edited in Lightroom by dragging the luminance noise slider to like 40.(there is little or no chroma noise, so I did not touch that slider)
As you can see, despite their photos taken under the same conditions, (1) is the best as it as less noisy compared to (2) and sharper than (3).If Samsung really did engage in strong noise reduction at night mode, much fine detail would be lost and the photo will look like an oil painting when you pixel-peep. Thus , night mode photos you take will look more like (3) than (1), when (1) is the actual night mode photo in reality.
3. Another good guess that Night mode is actually a multi frame mode is that, all night mode's photos have their EXIF data eroded.
(Fun fact, dpreview says iphone 6+ does this too)
"the built-in, stock Camera app may have too strong noise reduction and oversharpening"
IMO, Im sorry but I disagree, too strong noise reduction would mean that photos from the note 4 would be too smooth and would lack any fine detail at all, which from my observations isnt true. Samsung excels in that area. Also, oversharpening is also not the case, oversharpened photos often result in false detail and look contrasty/frosty which is again, not the case to me.
EDIT: oversharpening and noise reduction could be a matter of taste so it could be true for some

Front Camera Video P20 Overexposed / Soft

Hi
Will Huawei fix the overexposed soft image quality of the selfie camera on this phone.
I am still on 8.1.0.103 and wondering if its been fixed in one of the newer updates as it is really disappointing

Not sure they think it's broken, it was obviously designed to do this on purpose. I know a lot of people that use beauty mode. It is rather annoying though as it can't be disabled for those that don't want to be enhanced to Ken doll like proportions lol
If you hit the photo mode rather than the default portrait mode for front camera it does help a bit. Definitely better than portrait mode. I do hope that a future update will add more control over the processing, but I won't bank on it.

I've tried many different camera apps, and the overexposure and softening occur as soon as the camera detects a face. Haven't been able to find a solution yet.

prowsterz said:
I've tried many different camera apps, and the overexposure and softening occur as soon as the camera detects a face. Haven't been able to find a solution yet.
Click to expand...
Click to collapse
im 99% sure it can be disabled with root - its got to be a setting that detects faces.
we;d need someone to go through the source (if they ever release it)
once i root my p20 ill stalk around to try and find a property.

Sorry, i dont have phone yet. But, if you use some other camera application, will it be the same problem?

Its definitely a setting built into the kernel/source code because using another camera app will not override the setting. It only focuses on the subject (face) and blurs out the background which should not be the case

I have rooted P20 pro, and there is a ton of properties and definitions xml files for different modes and effects in odm/camera folder. For example there is something called "casiobeauty" among others But, to mess with those parameters someone has to have knowledge. So, i guess effects can be modified, if there ever will be someone of knowledge and will to do it

You all may want to install CameraMX from PlayStore.
It gives out high resolution and high qualoty images. Selfies taken by it are noticeably sharper than the p20 pro stock camera. Also, there is a slider to adjust exposure for the front cam (something that is missing from the stock). In addition, the app also supports HDR for the selfie cam as well.
You can give it a try...

mulkman said:
Hi
Will Huawei fix the overexposed soft image quality of the selfie camera on this phone.
I am still on 8.1.0.103 and wondering if its been fixed in one of the newer updates as it is really disappointing
Click to expand...
Click to collapse
it was fixed in .120

Kusznier said:
it was fixed in .120
Click to expand...
Click to collapse
What region? I am currently using the .120 for C636 but there is still the annoying overexposure and lack of details esp in groufies

You all might want to use the CameraMX app... I use it on all my selfies now. Ive compared it with the stock front cam and it's way way way better. See for yourself...

Archer Casio said:
You all might want to use the CameraMX app... I use it on all my selfies now. Ive compared it with the stock front cam and it's way way way better. See for yourself...
Click to expand...
Click to collapse
very cheap quality sorry bro!
I hope overexpo fixed in next update!

Kusznier said:
it was fixed in .120
Click to expand...
Click to collapse
It's better in 120 but definitely not fixed.

kabirjedi said:
very cheap quality sorry bro!
I hope overexpo fixed in next update!
Click to expand...
Click to collapse
Uploaded the wrong photos the last time sorry..
For the photos below, the washed out one is taken with the front camera native app. The better one is with cameraMX app.
Note: No editing done, same lighting condition, almost the same hand position, same angle.
It is very evident that the native camera app is washed out/overexposed.
Well, the CameraMX photo isnt perfect but for me, it is 80% better than the stock camera.

Archer Casio said:
Uploaded the wrong photos the last time sorry..
For the photos below, the washed out one is taken with the front camera native app. The better one is with cameraMX app.
Note: No editing done, same lighting condition, almost the same hand position, same angle.
It is very evident that the native camera app is washed out/overexposed.
Well, the CameraMX photo isnt perfect but for me, it is 80% better than the stock camera.
Click to expand...
Click to collapse
Hi - Is everyone certain this is a SW issue? I don't know a ton about cameras but is it possible there are defective front facing cameras on a bunch of these devices?

Hobartwash said:
Hi - Is everyone certain this is a SW issue? I don't know a ton about cameras but is it possible there are defective front facing cameras on a bunch of these devices?
Click to expand...
Click to collapse
Hi, I'm pretty much sure it's a software issue as the original photo can look so much better when you edit it. And, you can also use other camera apps

There is a workaround on the overexposed p20 front camera images using the Google Photos Editor App
(I've read it from another XDA thread).
The results are stunning! It's almost as if the photos were taken using an actual Google Pixel front camera! (In my opinion)
I suppose the image enhancement algorithm for the Google Photos app is similar to the image post-processing of Google Pixel phones.
Note: Google Photos is commonly preinstalled along with Gmail, Hangouts, GMaps.
Step 1 - Snap a selfie using the native app
Step 2 - Preview the photo and click the (...) at the bottom right
Step 3 - Click Advanced Edit ---> Select Google Photos
Step 4 - Select the second icon next to the filters menu.
You will find 3 sliders (Light, Color, and Pop)
Step 5 - Slide Pop all the way up, as well as Color.
You may tweak the settings more for Color and Light too!
(There are more options when you expand it)
Step 6 - Click Save.
Find sample photos below:

Just got a P20 Pro and this is seriously my biggest hate with this phone! The rest is great (except my google pay not working) but the front camera makes me look like a ghost on any image!

I'm on update 128 and the front camera still overexposed.

srgank said:
I'm on update 128 and the front camera still overexposed.
Click to expand...
Click to collapse
Yes, I second that.

camera app version

what camera version is users on pie have, my camera shows version 86.9.1130.21 but the interesting thing is when I hold the app icon and go into app options then app info advanced then scroll down to store and tap on it it shows device not compatible with this version, but even more strange is if I go to google play on my pc to look at camera apps it tells me I have version
Current Version
91.9.1133.80 installed
Flag
Quote
Disagree
Agree
Like
LOL

Don't bother with the stock camera app, it's rubbish. Install a modded Pixel camera app, much better for photos and videos, though some modes like slow motion sometimes bug out.

Pabliell said:
Don't bother with the stock camera app, it's rubbish.
Click to expand...
Click to collapse
It certainly isn't crap. Just have a look to my manual of the stock camera (with examples).
View my profile for link to website.

actiyo said:
It certainly isn't crap. Just have a look to my manual of the stock camera (with examples).
View my profile for link to website.
Click to expand...
Click to collapse
Saw your website and sorry, low light photos are rubbish. In good light even a low range phone can take good photos these days.
Nokia 8 is a flagship, with decent camera, unfortunately ruined by bad software. We even got a second camera to enhance low light performance, but it's still crap compared to better software using single sensor.
Just go ahead and get a GCam with working Night Sight mode, you'll see what I'm talking about with your own eyes.

The original camera of the Nokia 8 was praised (for photos taken in ideal light circumstances) and criticised (for photos taken in low light circumstances). That's why a completely new camera app was released on May 31st 2018, which got a major update in early September 2018. This camera app added an amount of Pro possibilties and - more important for everyday users - a much improved HDR to take better pictures in low light conditions.
The official manual for the camera, however, is not only very basic but only covers the original camera app. On the net there are almost no sites that reviewed this new (Pro) camera app or gave tips and tricks except for one by nokiapoweruser dot com.
I have tried to write my own manual (for taking photographs) based on numerous tips and tricks found in different forums. The manual is written in English - A Google Translate widget can be used on the site.
I hope this guide may be of some use to some of you. If anyone wants to share other tips, feel free to write them down here. Please don't start bashing the stock camera and praising gcam - I have a gcam-app myself, one of the newest, 6.1.021.220943556. A link to a similar manual as mine for gcam would be appreciated, though.
_____
On my website (click on my user name to see the link) four pictures taken at night, three pictures inside a museum, one inside a railway station and two inside an indoor market hall.

Question Mi 11 Ultra - run camera in the background?

Hi All I realise the security risk of this, but I want to use the Mi camera app in the background so I can use the UW lens as a dashboard cam. In the foreground will be my satnav program and also in the background will be VLC playing my favourite music.
The problem I have is that the Mi Camera app won't run in the background. If I start it and switch away, when I switch back, it's stopped recording. There are plenty of 3rd party dashcam apps, but camera2 API only reports 2 cameras and typically 3rd party apps haven't caught on to the multiple camera configs of phones these days.
I did find a setting in Settings/Privacy/Protection/Network Interception/Restrict Using camera in the background which I thought might be a clue, but the setting doesn't work and has blue text "Protected" next to it. Am I asking for the impossible? All workarounds gratefully received.... Cheers Steve
ps I'm running Chinese MIUI 12.5.4 Stable

If you can figure out some way to do this, the phone is going to get hot and you will probably need to keep it plugged in... This phone eats battery life using the cameras

Hi @speedtripler thanks for your reply. After much googling and playing with privacy protection settings, I found an app, cunningly called Background Video Recorder here:
Background Video Recorder Pro - Apps on Google Play
motion detection / recording videos / baby monitor / burst image capturing
play.google.com
After a quick play, it seems to work, so I'll go for the 'full monty' later and try it out with Navmii navigating and VLC playing my music. I do use a power supply in the car and I'll take a bucket of water too, in case it catches fire!
My attempts with Mi camera and GCAM 8.1 failed, as both pause video recording as soon as they go into the background.
What I really wanted was the UW lens, as this will cover the most ground, but I may have to stick with plain old Wide as not many apps support multiple lenses.
I'll update later after putting the fire out
Cheers Steve

Ok so I did a quick test last night and ran my satnav (Navmii) in the foreground, VLC playing music in the background and Background Video Recorder in the background and it all worked just dandy.
The only slight issue is the file size was large, 700MB after 15 mins. Now I have 500GB of storage, but that's a little high. There doesn't seem to be an option to set the save location, otherwise I could save it to an SD card so I've emailed the developer with the suggestion and see what he says. Also I've asked if he can support multiple lenses, as UW would be just great.
It does offer various framerates, though and 5fps is probably OK for a dashcam so I'll give that a try and report back.
After a 15 minute drive I didn't notice any overheating problems, but I have 4 hour drive on Wednesday so see how that goes.
Cheers Steve

The nice man at Arbel Solutions replied very quickly and pointed out it is possible to save to other locations in Settings. This was greyed out so I didn't see it, but you have to pay for the software to enable it as it's a premium feature which is fair enough.
On switching lenses, this is also supported, but it just offers Main and Selfie, which ties up with the Camera2 API checkers. I guess I need to root my phone and enable Camera2 API.
That's all for now....
Steve

Just a quick update on this. I ran Background Video Recorder on my trip to see my daughetr and grandkids. It's a 200 mile trek and all worked fine. I used Navmii, VLC and BVR all at once and didn't notice any over heating problems.
However, on the way back, I did the same but this time with BVR recording 8K video. Gosh, that quality is good . Now I want to buy a 4K TV!
After a couple of hours, the phone overheated, popped up a message saying just that, so I switched it off and let it cool down. The phone is working fine again now it's cool phew! I guess @speedtripler was right lol.
The 2 issues with heat are
1) The sun was shining on the phone
2) I'm using a hard plastic backing cover on the phone to mount it on the holder
2) must frustrate heat dissipation quite a bit.
So next up is to buy some gauze on eBay, cut an opening in the backing cover and fit the gauze. If that doesn't work, I'll probably have to make a piped cooling system with a fan.
Oh well, back to reality!
Cheers
Steve

Oh, I forgot there's another workaround for this. If the camera doesn't work in the background, you can run it in the foreground with other apps.
Sound simple? Well it's a bit fiddly, but Android 11 offers split screen, so you can have two apps running in the foreground. The only gotcha is that both apps need to support split screen.
Surprisingly, the stock camera doesn't so that's out. Neither does GCAM 8.1. Good 'ole OpenCamera does and it works well.
I'm still getting the hang of split screen but here's a basic guide:
1) start both apps
2) Go to Task Manager (hamburger icon)
3) long press on the first app and choose split screen ( like 2 oblong boxes, 1 on top of the other)
4) In Task Manager, click on the other app
Now the 1st app will appear in the top of the screen and the second at the bottom.
For my example, I now have OpenCamera recording video and Navmii giving me directions.
Brill!
Below is a screenshot. See the small white horizontal bar in the middle of the pic? You use this to change the size of the window. What's not to like? (sorry about getting my big finger in front of the lens)

The grids arrived yesterday to ventilate my hard plastic case so I set about cutting holes in it to fit them. The case is very hard and difficult to scratch, but was no match for my Dremel.
Hopefully this will promote air flow and cooling when the phone is crying while it's pushed hard.
The grids were stuck on with Gasket Goo which is good up to 230° C at which point I think the phone would be spitting flames!
This needs testing on a long journey on a hot day. If it still overheats, I'll clip on a mini 5V fan which I'm sure will sort it.
A phone with a cooling fan? Lol
Cheers
Steve