Request for roadmap to implement Zoom feature

[Emefar]

Hello,

We are currently using the IVS-Broadcast library for our project and we are wondering if it supports the ability to Zoom during broadcasts. If this feature is available, we would like to request a roadmap on how to implement it into our application.

Thank you.

[bclymer]

Hey @Emefar , zoom using the SDK managed camera is something we have planned, but there is no timeline yet for that feature. The best workaround we can provide for now is to use a custom image source to manage the camera yourself. Then you will have full access to the native camera's APIs.

For an example, please see CustomSourceActivity and CameraManager in this repo. While we don't explicitly show how to zoom, it does show how to hook up camera2 to our SDK.

I hope this helps.

[armanate]

Hello, We need zoom functionality in our app too, can I ask is this feature going to be added soon?

[kvasilye]

@armanate @Emefar We just published the IVS Broadcast SDK 1.16.0-rc.1 for Android

https://central.sonatype.com/artifact/com.amazonaws/ivs-broadcast

implementation 'com.amazonaws:ivs-broadcast:1.16.0-rc.1'

The Camera Zoom API is included in this release.

Note that this is an "RC" release, so it will not be announced same as our "full" releases, and it may be less stable than the "full" releases (not intentionally of course, it did go through QA).

Now with that being said let's look at how to use the new API.

The docs are available here - https://aws.github.io/amazon-ivs-broadcast-docs/1.16.0-rc.1/android/com/amazonaws/ivs/broadcast/package-summary.html - you want to look at CameraSource and you want Capabilities and Options classes.

First, use DeviceDiscovery and find the camera - I'm sure your app is already doing that

val discovery = DeviceDiscovery(context)
val deviceList = discovery.listLocalDevices()
val cameraDevice = deviceList.find {
                it.descriptor.type == Device.Descriptor.DeviceType.CAMERA &&
                        it.descriptor.position == Device.Descriptor.Position.FRONT
            }

Second, this is new, typecast the camera Device into CameraSource

val cameraSource = cameraDevice as CameraSource

Now we're ready to find out if the camera supports zoom

val capabilities = cameraSource.capabilities
if (capabilities.isZoomSupported) {
  val maxZoomFactor = capabilities.maxZoomFactor
}

And finally once we know that the camera supports zoom and what the max supported zoom factor is, we can set it

val options = CameraSource.Options.Builder().
  setZoomFactor(1.5f).  // between 1.0 and maxZoomFactor
  build()

 cameraSource.setOptions(options)

You can set the zoom factor before you start capturing from the camera (i.e. before you get a preview for it) or when the camera is already capturing, in the latter case the SDK will apply the new options immediately.

[kvasilye]

We just released 1.16.0 "official stable" and the Camera Zoom API is there. There were no changes compared to 1.16.0-rc.1.

I'm closing this issue since the Zoom API is now provided. If you run into an issue using this API, please open a separate issue.