Or is it impossible no matter how you build or code apps?
I am saying in android version 5.0
Which was released 2014-2016.
I mean if when one app is using camera in “background” , is using another camera app at the same time possible??
Some people say it depends on how the applications is coded.
Also the app “sound assistant” makes 2 music apps using speaker at the same time.
Then how about camera???
And i saw a comment saying
“Our current frame work does support limited support for multi-app access to the camera.
We allow one (and only one) "controlling" app to the camera, but an arbitrary number of "shared" apps to access the same camera.
There are some limitations for "shared" apps:
No camera controls Exposure/White
Balance/Focus, etc...).
No media type selection (can't choose VGA vs.
720p vS. 1080p, etc...).
Only access to a video stream by default, photo pins are blocked (any photo operation will use a video frame instead).
The "controlling" app decides what media type to use and can set any camera control. Any of the sharing app can register to be notified if a controlling app releases control of the camera, at which point, the sharing app can re-open the camera in controlling mode.
The mechanism described above does not require any copying of the captured frame so the overhead is minimal.”
What this comment means? does it say 2apps can access to camera at the sametime anyway in android??
Any way thanks for reading and I want to know if the phone is rooted , this can be possible
thank you for reading !
Related
I have an API integrated application that calls the Internal Camera API. The application can then use the camera to capture with the interface inside that application. But now I want to use a previously taken photo, instead of the app taking a photo with the camera, when I press the shutter button on that app, it will record the photo I selected first.
Any ideas for the above problem? I don't want to mention the android virtual machine as that has a rather high requirement for hardware.
I have some ideas like Fake Camera software but it only applies to apps that call Android System Camera apps and not apps that use Internal Camera API. I also have an idea about using my pc to make a device that can pass an image to the Internal Camera API on the android device. But I am not knowledgeable enough or there is no software that can meet that requirement.
I think with the growth of the stackoverflow community, I can get my answer to this problem.
Thank you for reading my question.
I want to configure front and back both cameras into Android camera2 API, to take pictures and videos from both cameras simultaneously, I have created 2 texture views , when ever I am opening one camera (front or back) my code is working fine but whenever I am trying to open both cameras simultaneously , code is breaking upon creating session, I am getting cameraAccessException :configure stream : method not implimented.
I want to save both front and back camera captured images as one image and both video as one video.
Guys it will be very much helpful if you can put some sample code or some sample link.
i am using one plus 6, i recently downloaded an app "Dual camera fron back Camera", by using this i am able to capture image from front and back both camera on the same time, so if somebody want to suggest for no hardware support, i think it may be valid for other phones but for my case i think i am missing something in coding, till now from google search it looks like there is some problem with session creation for second camera, i debugged my code, during creation of second camera session it fails so if you have any idea about that, please share.
Thanks
Rakesh
The camera API is fine with it, but most Android devices do not have sufficient hardware resources to run both cameras at once, so you will generally get an error trying to open the second camera.
Both image sensors are typically connected to the same image signal processor (ISP), and that ISP can only operate one camera at a time. Some high-end devices have ISPs with multiple processing pipelines which can in theory run more than one camera at a time, but they often require using multiple pipelines to handle advanced functionality or very high resolutions for the main (back) camera.
So on those devices, multiple cameras may be usable at once, but not at maximum resolution or other similar restrictions.
Some manufacturers include multi-camera features in their own camera app, since they know exactly what the limitations are and can write application code to work within them. They may not make multi-camera available to normal apps, due to concerns about performance, thermal limits, or just lack of time to verify more than the exact use case they implement in their own app.
The Android camera API does not currently have a way to query if multiple cameras can be used at once, or if they can be, what the restrictions are. So the only thing you can do is try, and handle the errors in case that isn't feasible.
I have quite a bit of experience with the camera API, but I could not find any documentation to answer this question...
Most phones already have a front and a back camera. Would it be possible to simulate a 3rd camera via software (probably using a service), and register that with the api?
The idea would be that we define a custom camera, register it with the Api, and then any camera app would be able to get it by looping through the available cameras.
I imagine several cases where we might want this...
There are some external cameras (such as the FLIR thermal camera) that could provide this.
We might want to concatenate the front and back camera images into a single image, and preview that. I know not all phones support opening both cameras concurrently, but some do, and i could imagine this functionality would be cool for 3rd party video chat apps like Skype... Specifically, since Skype doesnt natively support this, by registering directly with the Android Camera Api, we could get around the limitations of the Skype API, since our custom camera would just look like one of the default Android cameras.
So would this be possible? Or what is the technical limitations that prevents us from doing it. Perhaps the Android Api simply doesnt let us define a custom source (I know the Sensor API doesnt, so I would not be surprised if this was the case for the Camera API as well).
What I'm trying to achieve: access both front and back cameras at the same time.
What I've researched: I know android camera API doesn't give support for using multiple instances of the Camera and you have to release a camera before using the other one. I've read tens of questions about this, I know on some devices it's possible (like Samsung S4, or other new devices from them).
I've also found out that it's possible to have access to both of them in Android KitKat on SOME devices.
I also know that on api >= 21, using the camera2 API, it's possible to access both of them at the same time because it's thread safe.
What I've got so far: implementation for accessing the cameras one at the time in order to provide a picture-in-picture.
I know it's not possible to implement dual simultaneously camera on every device, I just want a way to make it available to some devices.
How can I test to see if the device is capable of accessing both of them?
I've also searched for a library that can allow me such thing, but I didn't find anything. Is there such a library?
I would like to make this feature available for as many devices as possible, and for the others, I'll leave the current state (one by one) of the feature.
Can anyone please help me, at least with some pieces of advice?
Thanks
!
The Android camera APIs generally allow multiple cameras to be used at the same time, but most devices do not have enough hardware resources to support that in practice - for example, there's often only one camera image processor shared by both cameras.
There's no query that's included in the Android APIs that'll tell you up front if you can use multiple cameras at the same time.
The only way to tell is to try to open a second camera when you already have one open. If you can open the second camera, then you can do picture-in-picture, etc. If you get an exception trying to open the second camera, then that particular device doesn't support having both cameras open.
It is possible using the Android Camera2 API, but as indicated above most devices don't have hardware support. If you have a Nexus 5X, Nexus 6, or Nexus 6P it will work and you can test with this BothCameras app. I've implemented blitting to allow video recording as well (in addition to still pictures) using the hardware h264 encoder.
You can not access both the cameras in all android mobile phones due to hardware limitations. The best alternative can be using both the camera one by one. For that you can use single camera object and can change camera face to take another photo.
I have done this in one of my application.
https://play.google.com/store/apps/details?id=com.ushaapps.bothie
I've decided to mention that in some cases just opening two cameras with Camera2 API is not enough to know about support.
There are some devices which are not throwing error during opening. The second camera is opened correctly but the first one will call onCaptureFailed callback.
So the most accurate way is starting both cameras and wait frames from each of them and check there are no capture failure errors.
I have been searching but have found no information on this. I am working on an app that captures video from the device camera and I would like to limit the length to one minute or less. I have seen the camera API which allows monitoring the status, but even that does not seem to have options for reading the current state (recording or not) Either way the API says to use cameraUI API for mobile, and that has no options other than to lock into video rather than stills.
I also found an ANE for iOS which allows record start/stop functions, so I could use that to make my own record button and implement a timer before triggering stop. but I cannot find an android equivalent.
I am using Flash Professional CS6, not Flex or Flash Builder.
Has anyone done this or have any ideas how to make this happen?