[Q] Dual Video Recording (Dual Shot?) - One (M7) Q&A, Help & Troubleshooting

I'm not exactly sure what to call this (Dual-Shot?), but some of you may be familiar with how the Samsung S4 is able to capture video from both the front, and rear facing camera and render it in the same video (If not, see this video)
I was wondering if there is anything currently on the market, or in the works that is capable of achieving this? It's somewhat gimmicky, but I would like to see how it looks on the One.
I also wasn't sure if anyone knew of any hardware limitations preventing this from becoming a reality?

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4K video recording

Hello everyone, on my XZ2 I can't record 4K videos. Well, I can, but they stutter while recording, or even freeze up. Sometimes the phone then freezes up too. Some reviewer mentioned stuttering viewfinder while recording videos, but when playing back it stutters too. Only if I disable shake reduction and HDR I have a chance of recording relatively smooth video. Otherwise I experience massive frame drops. h264 or h265 don't seem to make a difference. I've also recorded to the internal memory to make sure it's not a slow SD card causing issues.
It's the first phone this has ever happened to me. LG G5? Smooth 4K. LG V20? Smooth too. Xiaomi Mi 6? Yep. Even with a Snapdragon 810 (!) did smooth videos (I think my Snapdragon 800 based Mi 3 was smoother using Open Camera...).
Basically: WTH?
Also the XZ2 keeps overheating when taking photos. As a result certain features are deactivated, or it even quits the camera.
Any tricks? Anyone else having issues? My phone is a marketing sample, so probably early in the production run, so that may cause the issues?
Same here on 4K recording. No overheat on camera yet. Just went on holiday and took 900+ pics with no issues. Decent quality too. Disappointed with 4K recording capability though.

Front camera MIRRORING

I don't know why but when ever I take a video the video after recording is mirrored which kind of makes me look wired and really wired.
The photos are okay.
It's really annoying too.I kind of like the stock camera so I won't be switching to any other app
Someone please help me

Choppy video.

For some reason I get some kind of severe lag when recording video, especially noticable during camera movements but it's there all the time. You also hear the chops in the sound. The problem is worst in 1080p, it's a bit better in 4k. 1080 gets the choppy lags in all 3rd party apps I've tried as well as in the stock app, very frustrating. Changing the bitrate doesn't seem to affect this issue much, it's doesn't get less choppy at lower or higher bitrates (in Open Camera).
Video stabilization and noise reduction and stuff like that is turned off across the board as far as it's possible since I use a gimbal and do all processing in post. And yes the video is choppy with or without the gimbal, it makes no difference for that.
At first I thought it had to to with bad support for the 3rd party apps I use but then I realized the problem is just as bad or worse in the Huawei photo app, which of course produces bad video quality in the first place but that's another issue.
Recording in slow motion on the other hand works fine, cranking up the bitrate to the max and recording in 120fps in open camera with manual focus produces the best slo-mo quality 1080 footage I've seen a phone do so far. So I know for a fact that the phone can produce good quality 1080p footage, I just can't make it work with normal frame rates for some reason.
Anyone else had this problem? Is my phone simply malfunctioning or did I do something wrong? I'm on the 131 firmware version, firmware finder also lists the 131a as compatible, could that solve the issue?
Any help appreciated.
Sjorpha said:
For some reason I get some kind of severe lag when recording video, especially noticable during camera movements but it's there all the time. You also hear the chops in the sound. The problem is worst in 1080p, it's a bit better in 4k. 1080 gets the choppy lags in all 3rd party apps I've tried as well as in the stock app, very frustrating. Changing the bitrate doesn't seem to affect this issue much, it's doesn't get less choppy at lower or higher bitrates (in Open Camera).
Video stabilization and noise reduction and stuff like that is turned off across the board as far as it's possible since I use a gimbal and do all processing in post. And yes the video is choppy with or without the gimbal, it makes no difference for that.
At first I thought it had to to with bad support for the 3rd party apps I use but then I realized the problem is just as bad or worse in the Huawei photo app, which of course produces bad video quality in the first place but that's another issue.
Recording in slow motion on the other hand works fine, cranking up the bitrate to the max and recording in 120fps in open camera with manual focus produces the best slo-mo quality 1080 footage I've seen a phone do so far. So I know for a fact that the phone can produce good quality 1080p footage, I just can't make it work with normal frame rates for some reason.
Anyone else had this problem? Is my phone simply malfunctioning or did I do something wrong? I'm on the 131 firmware version, firmware finder also lists the 131a as compatible, could that solve the issue?
Any help appreciated.
Click to expand...
Click to collapse
I have this issue in 60fps
When I revert back to full stock it's fluid and works as expected.
Once I've rooted and installed twrp etc plus a few apps it starts to get laggy, I don't use 4K so don't care..30fps 1080p is what I use most and it's perfect..just annoying that 60fps doesn't work as it should..really annoying.
At total stock it should be fine.
I also use a magisk module called swap torpedo which eliminates the use of a swap file, not sure if that matters or not.
Also I've seen this issue present on all firmwares
In which app do u have this issue?
Babu mani said:
In which app do u have this issue?
Click to expand...
Click to collapse
All apps including Huaweis own.
I've contacted support and they say they'll try to find out what the problem is with my choppy 1080 video.
Obviously that doesn't adress the absurdly low bitrate limits and lack of support for advanced functions in 3rd party apps, which are simply limitations of the p20 pro for now, they said they are aware of those issues as well and looking to fix them.
Sjorpha said:
All apps including Huaweis own.
I've contacted support and they say they'll try to find out what the problem is with my choppy 1080 video.
Obviously that doesn't adress the absurdly low bitrate limits and lack of support for advanced functions in 3rd party apps, which are simply limitations of the p20 pro for now, they said they are aware of those issues as well and looking to fix them.
Click to expand...
Click to collapse
Ok so may have a fix for this.
I'd previously changed device resolution to HD from FHD changing this back fixes 60fps video, it makes sense that it would offer the same for the other issues you've been having.
Check it out its under Display.
About the laggy video, I just looked into this issue and found something really interesting. When choosing full HD resolution and shooting a video, I find it laggy. But when choosing FHD+ 2160 x 1080 p, the video is amazingly smooth. I suspect that when you choose FHD, the phone is doing some downsampling which causes a huge load on the CPU and makes it laggy while FHD+ does not cause such a big downsampling, because of the 2160 width, which is the native 4k height. Maybe someone who knows more can confirm if what I'm saying is actually true. The kirin 970 does not seem capable of proper processing power like it is advertised.
I have te same issue. FHD 30fps is horribly stuttering, while FHD 60fps or 4K are ok. Do someone found a solution to this? It's incredible that the most powerful and advanced camera phone at the moment have this flaw!
Inviato dal mio CLT-L09 utilizzando Tapatalk
Hey, did anyone find another fix for this? I changed my screen resolution and it makes no difference, still getting laggy and choppy video.
Hi guys,
I have just recorded wedding speeches and the video is choppy as hell at 60fps. The audio is fine but video isn't. Any way I can salvage the clips?
Thanks in advance

Video stabilization issues

Hi, i am having the strange issue with video stabilization on my note 9. It started after receiving one of the software updates. The issue is that on certain video resolutions (for me it started on 1920x1080 and 2224x1080 at 30fps) video is cropped and zoomed in as you would expect but the saved video is still shaky. Funny thing is - when i installed Android 10 the issue didn't go away but instead note stabilization doesn't work on 4k and works on 1080 now. I have no idea what's going on and the service center charged me $160 to fix it, but that's quite a lot.
Has anybody faced anything similar?
Can someone please check on your phones if shooting in different resolutions with stabilizer turned on results in different stabilization effect?

Jarring ultrawide 4k video

Strange enough, I've found only one person (below) other than me complaining about jarring ultrawide 4k videos recorded on S20 FE. I wonder if this is a hardware issue or a glitchy image stabilization that can be fixed via software update. Is anyone else having the same problem? Because of this, ultrawide 4k recording on my phone is pretty much useless.
Samsung Galaxy S20 FE 5G FULL In-Depth Review - YouTube
(13:15~)
I played with a demo unit at Best Buy. Although I was not able to move it freely, it didn't seem to have the issue. Mine may be just defective.
tkshk said:
Strange enough, I've found only one person (below) other than me complaining about jarring ultrawide 4k videos recorded on S20 FE. I wonder if this is a hardware issue or a glitchy image stabilization that can be fixed via software update. Is anyone else having the same problem? Because of this, ultrawide 4k recording on my phone is pretty much useless.
Samsung Galaxy S20 FE 5G FULL In-Depth Review - YouTube
(13:15~)
Click to expand...
Click to collapse
Are you recording to device or SD card?
To device. I noticed later that "video stabilization" was on in the settings when I recorded ultrawide 4k videos . I don't have the issue after turning it off, so I suppose the hardware is fine. EIS may not be optimized yet. Hopefully the upcoming One UI 3.0 update includes better EIS.

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