Camera Streaming

facebook/meta-wearables-dat-android-camera-streaming

Session and Stream capability setup, video frames, photo capture, resolution and frame rate configuration

822 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

339

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/facebook/meta-wearables-dat-android --skill camera-streaming

The instruction itself

10 sections, as written by the author

Camera Streaming (Android)

Use a Session and attached Stream to receive frames and capture photos.

Key concepts

Session: Device connection lifecycle created through Wearables.createSession(...)
Stream: Camera stream accessed via camera.stream after attaching the camera with session.addCamera(...)
StreamConfiguration: Resolution and frame rate configuration for the stream
PhotoData: Still image captured from glasses while streaming

Create a session and attach a stream

import com.meta.wearable.dat.camera.Camera
import com.meta.wearable.dat.camera.addCamera
import com.meta.wearable.dat.camera.types.StreamConfiguration
import com.meta.wearable.dat.camera.types.VideoQuality
import com.meta.wearable.dat.core.Wearables
import com.meta.wearable.dat.core.selectors.AutoDeviceSelector

val session = Wearables.createSession(AutoDeviceSelector()).getOrElse { error ->
    throw IllegalStateException(error.description)
}
session.start()

val camera: Camera = session.addCamera(
    StreamConfiguration(
        videoQuality = VideoQuality.MEDIUM,
        frameRate = 24,
    ),
).getOrElse { error ->
    throw IllegalStateException(error.description)
}

camera.stream.start().getOrElse { error ->
    throw IllegalStateException(error.description)
}

Resolution options

| Quality | Size |

|---------|------|

| VideoQuality.HIGH | 720 x 1280 |

| VideoQuality.MEDIUM | 504 x 896 |

| VideoQuality.LOW | 360 x 640 |

Frame rate options

Valid values: 2, 7, 15, 24, 30 FPS.

Lower resolution and frame rate usually produce better visual quality per frame over Bluetooth.

Observe stream state

StreamState transitions: STOPPED -> STARTING -> STARTED -> STREAMING -> STOPPING -> STOPPED -> CLOSED

lifecycleScope.launch {
    camera.stream.state.collect { state ->
        when (state) {
            StreamState.STREAMING -> {
                // Frames are flowing
            }
            StreamState.STOPPED -> {
                // Streaming ended
            }
            StreamState.CLOSED -> {
                // Stream fully closed
            }
            else -> Unit
        }
    }
}

Receive frames

lifecycleScope.launch {
    camera.stream.videoStream.collect { frame ->
        updatePreview(frame)
    }
}

Capture a photo

lifecycleScope.launch {
    camera.stream.capturePhoto()
        .onSuccess { photoData ->
            val imageBytes = photoData.data
            savePhoto(imageBytes)
        }
        .onFailure { error, _ ->
            showCaptureError(error.description)
        }
}

Clean up

Stop the stream when you no longer need camera data, then stop the parent session if the device interaction is finished.

camera.stop()
session.stop()

If you want to remove the capability entirely before re-adding it, call session.removeCamera().

How to use it

Copy the folder

Take facebook/meta-wearables-dat-android-camera-streaming from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

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