Questions tagged [camera]

For questions related to rear camera (backside camera) on Android devices. Questions regarding front camera should be tagged with [front-camera]

264 questions with no upvoted or accepted answers
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8 votes
0 answers
31k views

How to emulate camera input in Android? (To activate Whatsapp Web)

I have an Android device without a camera and I run Whatsapp on that device. I want to activate Whatsapp Web from this device. Unfortunately, the only way to do this is to scan a QR-code, and I can't ...
  • 1,161
7 votes
1 answer
3k views

How to enable a PIN but allow quick access to camera?

In Android 4.1, when you set the lock screen security to "slide", you can quickly access the camera by sliding left. Is there a way to get a similar sliding mechanism, but at the same time require a ...
  • 337
6 votes
1 answer
4k views

How to turn off "Shake to wake camera" on Nexus 5?

Ages ago, while running Lollipop, I found a setting to allow activation of the camera whilst locked. All you have to do is shake the phone. I'll give that a try, I thought. After all, I can always ...
  • 61
6 votes
1 answer
1k views

Take someone's picture twice in the same photo

There is an interesting feature in the camera of Samsung Galaxy S phones, called "Add me". Using this, one can take a photo of a person sitting in two postures in the same frame. A normal ...
  • 161
5 votes
1 answer
3k views

Make android phone as USB Webcam

I have an Android tablet based on Android Lollipop (5.1.1) and I want to use this device as a webcam via USB. I know some apps could work (e.g. DroidCam or WO WebCam) but they require extra clients ...
5 votes
0 answers
39k views

Using WhatsApp on Web, but camera not working?

I'd like to use WhatsApp on my web browser but I can't scan the QR code. Opening the scanner on the QR code brings the error "Cannot start camera" Is there any workaround to scanning the WhatsApp web ...
  • 59
5 votes
1 answer
4k views

FFMpeg stream to FFServer from Back Camera

I'm looking for a way to stream my camera video from my Android phone to an FFServer, like I would with FFMpeg from the command line in Linux: ffmpeg -f video4linux2 -i /dev/video0 http://IP:8090/...
  • 240
4 votes
0 answers
1k views

FORTIFY: pthread_mutex_destroy called on a destroyed mutex

I own the LG G4 (Snapdragon 808 based device). All files reference in my post are shared here. I'm trying to get the camera working in Q, however, I get major issues with the camera daemon crashing. ...
  • 41
4 votes
0 answers
2k views

How to change default microphone input at Android devices?

I have an android box (not tv box) that doesn't have a built-in camera or mic. I have connected Logitech c920 webcam via an USB port. (The android box: supports OTG port and jack 3,5 but I want to ...
4 votes
1 answer
14k views

How do I keep my camera active on Android even when the phone is locked and screen sleeps?

When I play Ingress, Ingress remains active. Even when my screen goes black, if I push the power button, Ingress is still active. I do not need to unlock my phone nor wait for it to "wake up". (The ...
4 votes
1 answer
523 views

Is continuous focus a 4.0-only feature?

The http://www.android.com/about/ice-cream-sandwich/ page details that Android 4.0 "Ice Cream Sandwich" introduced two interesting features for Camera: “continuous focus” and “zero ...
  • 839
3 votes
1 answer
615 views

WhatsApp QR scanner seems blurry

My WhatsApp QR scanner is not working when needed for WhatsApp Web. It seems blurry, while my phone's camera is actually perfectly clear. Secondly, I have restarted the phone none worked, same issue ...
  • 31
3 votes
0 answers
544 views

How to get a list of supported camcorder profiles

The resolution of a recorded video is set according to CamcorderProfile which is passed to a MediaRecorder object. The profiles are identified by quality constants: CamcorderProfile.QUALITY_HIGH, ...
  • 131
3 votes
0 answers
4k views

How can I disable (only) the rear facing camera?

I have a Droid Maxx running Android 4.4, but the rear facing camera has a problem. I tried replacing it once, and it worked for a few minutes, but went bad again. The front facing camera works fine. ...
  • 131
3 votes
0 answers
972 views

Make android phone as driver-free USB Webcam

I have a video call device which only works with driver-free usb webcams attached. Since I dont have a USB webcam at hand, so I wonder if I can make Android phone (rooted) emulated as a driver-free ...
  • 321
3 votes
1 answer
2k views

Camera isn't available - Trusted Face ( Android Lollipop - Nexus 5)

Sometimes I've noticed that the Smart Lock - Trusted Face feature doesn't work, no matter what the lighting or the position of my face relative to the phone. I thought that an "Improve face matching"...
3 votes
0 answers
7k views

Galaxy S4 Video Recording: File Size Limit & Frequent Blurring

I'm trying to use Galaxy S4 as a video camera for recording offline usergroups. Apart from whether it's a good idea, it's generally succeeding, but there are some critical problems: Android file ...
  • 191
3 votes
0 answers
4k views

Disable Camera on Android using ADB Shell

I am using 4.1 JB Rooted Device & want to completely disable Camera on my mobile as it is not allowed at my work place. Currently I am using 'Disable Camera device' app but one can easily Enable ...
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3 votes
0 answers
536 views

Can the Android Jelly Bean camera app be set to take pictures as they appear on screen?

After my most recent Android update, the camera app has changed the way pictures are framed. While they used to be taken as they appear on the screen, they are now stored with "extra space", i.e., as ...
3 votes
7 answers
90k views

Turn off Snapchat camera sound in Android

Whenever I take a picture with the front camera on Snapchat on my Xiaomi Mi Max 2, it makes a loud fake camera shutter sound. I have tried putting the phone on mute/do not disturb and having the ...
user avatar
2 votes
0 answers
43 views

How to disable maximum camera brightness on Samsung Galaxy A10s Android 11

In June, I upgraded to Android 11. In Android 10, you could set the screen brightness in the standard Camera app, just like in all other apps. But in Android 11, the camera automatically turns on at ...
2 votes
0 answers
29 views

Camera is not working on my Galaxy TAB

Suddenly, the camera and flashlight are not working on my Galaxy TAB device. Android throws a camera/flashlight is being used by another app issue. I have tried to uninstall the apps one by one and ...
2 votes
0 answers
151 views

How to force use the front camera when the rear camera is not working?

I have Samsung Galaxy J4+ (SM-J415F). When I try the stock Camera app and also more than 10 camera apps from Play Store, all of them crashed. The rear camera is showing null, but the front camera is ...
  • 31
2 votes
0 answers
156 views

Creating a virtual camera that shows an app (override web whatsapp QR code)

I'm trying to override the problem of connecting to web whatsapp on a phone without a camera in order to scan the QR code. It's probably not important but the computer runs linux. My idea: creating a ...
  • 21
2 votes
0 answers
33 views

Automating android: stop all system/app related interference that prevents 100% reliability?

A team of us at work are trying to use Pixel 4a phones to take pictures every 30sec of a remote process from 6a - 6p each day, uploading the pictures to our AWS storage container. My colleague wrote ...
  • 151
2 votes
2 answers
2k views

Taking photos is slow

I've a few month old Samsung Galaxy A51 (android 10) and it's camera needs couple of seconds (2-4) BEFORE taking any picture, which is just too long when I want to photo children. My past phones were ...
2 votes
0 answers
861 views

How to create QR contact code from vCard

Just came across a website with a QR code that when I pointed the mobile phone camera towards it (I am using a mobile phone with Android 10), it opened a window with Name, Phone, Email, Website, Title ...
2 votes
0 answers
75 views

Turn Android device into a wireless or USB webcam with background removal

There exist several applications such as DroidCam that can turn one's Android device into a wireless or USB webcam. Do any of these applications have a background removal feature (= only shows the ...
2 votes
0 answers
67 views

Camera zooming by using Bluetooth buttons that act as volume buttons

I have a Huawei P30 Pro and this Bluetooth camera shutter. The shutter had dedicated buttons for zooming. Sadly, the volume buttons on the P30 just act as a shutter (the zooming buttons on the ...
2 votes
0 answers
4k views

Making the front camera the main one, or disabling the main (back) camera

My device's rear (main) camera is broken. WhatsApp Web pairing uses the main camera in order to scan a QR code and can't be switched to the front (selfie) one. Is there any ADB command that can switch ...
2 votes
0 answers
2k views

Symbolic link permission denied

I'm trying to create a symbolic link on my Android N phone, so that my photos are accessible from the Pictures folder. I want to be able to sync all my pictures in a single folder using Syncthing. My ...
2 votes
0 answers
101 views

Camera stopped working on Pixel XL

I have a Pixel XL. The camera stopped working recently. I can't take any pictures. I have tried resetting the cache, rebooting into safe mode, uninstalling new apps, nothing seems to be working. I was ...
2 votes
0 answers
256 views

Disable Audio device?

I bought a phone in Japan(Huawei P10) and in Japan by law the camera app has to make shutter sound. But, when I am back to my country, I want to disable that, because it's obviously annoying. Do not ...
2 votes
0 answers
92 views

Can't access main camera (stuck in wide angle)

My Zenfone 4 Max camera app is stuck on the wide angle camera. The icon on the picture below says it's the main camera, but it's possible to see by the curve on my wall that it's indeed in wide angle. ...
  • 131
2 votes
0 answers
2k views

Telegram messenger on android uses camera hiddenly

Everytime I open Telegram messenger and wait for a few seconds, then I check Stock AppOps in my android setting, I see that telegram has used camera same time, While I never used camera. my telegram ...
2 votes
0 answers
89 views

Android 7.0 - Torch Will Not Work With Camera

I have a Nexus 5X running Android 7.0. Every few months I have to photograph some meters that are in a dark location. These used to be read manually with a torch but now I have to submit photographs. ...
2 votes
0 answers
240 views

Stop Motion Video creation using external camera

my son is very interested in Lego stop-motion video creation. There are myriad apps for stop motion capture on the Android platform, but using a device's internal camera isn't too easy, since you can'...
2 votes
0 answers
9k views

How to take multiple shots with a timer?

In the default camera app of my Samsung Galaxy S3, I can set the timer to take a picture after a delay of up to 10 sec. I can also use the burst mode or the best photo mode to get several shots at ...
  • 226
2 votes
1 answer
3k views

What's this persistent Camera-app notification in Android 6.0?

I've been using my Nexus 5X for about a week now, but this morning was the first time I noticed the following notification: Backstory: I snapped a few photos this morning (w/ default camera app). ...
  • 121
2 votes
0 answers
2k views

Camera keeps crashing on Google Nexus 5 with 6.0 Marshmallow

I have a Google Nexus 5 with Kernel 3.4.0-g2aa165e and build number MRA58N. (Android 6 Marshmallow) Its not rooted or modified. Just recently the camera keeps crashing. I click the camera button and ...
2 votes
0 answers
239 views

Mute the autofocus for the camera on samsing galaxy S3 i9305 (4.4.4) for the video mode

I have done the follwoing to silence the camera : Renaming the files in system/media/audio/ui/ Adding this line to system/csc/others.xml <CscFeature_Camera_ShutterSoundMenu>true</...
  • 226
2 votes
0 answers
2k views

Show only photos taken in camera app

In the Android 5 camera app, if you browse the photos taken, there appear also photos from Whatsapp, music album covers, etc. Can you make the camera app only display photos taken?
  • 121
2 votes
0 answers
170 views

Storing pictures on an external storage media

So, I'm new to Android but I came to the conclusion that on 4.2.2, the Camera app doesn't exist as such and is actually part of the Gallery app package. Now my problem is it isn't possible to change ...
  • 131
2 votes
0 answers
1k views

How can I save Android photos in the WebP format?

WebP images are at least 20% smaller. Windows can open WebP images after installing the WebP codec.
2 votes
0 answers
463 views

How can I take a photograph via voice control with Google Camera or CyangoenMod default camera?

I know that I can use Google Search and say "OK Google, Take a picture" to open the chosen camera app. How can I then take a photo? I tried the obvious "snapshot", "take picture" both with and ...
  • 121
2 votes
0 answers
113 views

Select which Dropbox account to synchronize with when camera upload is on

I installed Dropbox on my rooted Samsung Galaxy SIII that runs Android 4.1.2. I have 2 Dropbox accounts, one personal, one Dropbox account for business. When turning on the camera upload, how can I ...
2 votes
1 answer
48 views

Help Needed. Cam/PC link

Hello fellow enthusiasts, I am in need of help and would be very thankful to anyone who can take a few minutes and help me solve this issue. Here is my problem. I would like to open a Youtube channel ...
2 votes
2 answers
1k views

High Speed Camera?

Since my phone (HTC One M7) can record in 720p at 60 fps, I'm curious if it's possible to record smaller video, like 320x240, at much higher speeds, like 180 fps. Is the 60 fps a hard coded limit?
  • 71
2 votes
0 answers
545 views

Change device name on EXIF file

Recently I've been flashing some ROM s on my Moto X, and I noticed that the EXIF data from photos show my device name as: Phone. How can I change this information on the system so it saves correctly ...
2 votes
0 answers
178 views

Prevent Samsung Galaxy S2 camera to change resolution without prompting

I got a Samsung Galaxy SII (S2) with Android 4.1.2 and the built in camera app keeps changing the resolution from 8MP to the lowest, 640 x 480. Why does this happen and is there any way to prevent ...
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