react-native-vision-camera/README.md

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<a href="https://margelo.io">
<picture>
<source media="(prefers-color-scheme: dark)" srcset="./docs/static/img/banner-dark.png" />
<source media="(prefers-color-scheme: light)" srcset="./docs/static/img/banner-light.png" />
<img alt="VisionCamera" src="./docs/static/img/banner-light.png" />
</picture>
</a>
<br />
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<div>
<img align="right" width="35%" src="docs/static/img/example.png">
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</div>
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### Features
VisionCamera is a powerful and fast Camera component for React Native. It features:
feat: Full Android rewrite (CameraX -> Camera2) (#1674) * Nuke CameraX * fix: Run View Finder on UI Thread * Open Camera, set up Threads * fix init * Mirror if needed * Try PreviewView * Use max resolution * Add `hardwareLevel` property * Check if output type is supported * Replace `frameRateRanges` with `minFps` and `maxFps` * Remove `isHighestPhotoQualitySupported` * Remove `colorSpace` The native platforms will use the best / most accurate colorSpace by default anyways. * HDR * Check from format * fix * Remove `supportsParallelVideoProcessing` * Correctly return video/photo sizes on Android now. Finally * Log all Device props * Log if optimized usecase is used * Cleanup * Configure Camera Input only once * Revert "Configure Camera Input only once" This reverts commit 0fd6c03f54c7566cb5592053720c4a8743aba92e. * Extract Camera configuration * Try to reconfigure all * Hook based * Properly set up `CameraSession` * Delete unused * fix: Fix recreate when outputs change * Update NativePreviewView.kt * Use callback for closing * Catch CameraAccessException * Finally got it stable * Remove isMirrored * Implement `takePhoto()` * Add ExifInterface library * Run findViewById on UI Thread * Add Photo Output Surface to takePhoto * Fix Video Stabilization Modes * Optimize Imports * More logs * Update CameraSession.kt * Close Image * Use separate Executor in CameraQueue * Delete hooks * Use same Thread again * If opened, call error * Update CameraSession.kt * Log HW level * fix: Don't enable Stream Use Case if it's not 100% supported * Move some stuff * Cleanup PhotoOutputSynchronizer * Try just open in suspend fun * Some synchronization fixes * fix logs * Update CameraDevice+createCaptureSession.kt * Update CameraDevice+createCaptureSession.kt * fixes * fix: Use Snapshot Template for speed capture prio * Use PREVIEW template for repeating request * Use `TEMPLATE_RECORD` if video use-case is attached * Use `isRunning` flag * Recreate session everytime on active/inactive * Lazily get values in capture session * Stability * Rebuild session if outputs change * Set `didOutputsChange` back to false * Capture first in lock * Try * kinda fix it? idk * fix: Keep Outputs * Refactor into single method * Update CameraView.kt * Use Enums for type safety * Implement Orientation (I think) * Move RefCount management to Java (Frame) * Don't crash when dropping a Frame * Prefer Devices with higher max resolution * Prefer multi-cams * Use FastImage for Media Page * Return orientation in takePhoto() * Load orientation from EXIF Data * Add `isMirrored` props and documentation for PhotoFile * fix: Return `not-determined` on Android * Update CameraViewModule.kt * chore: Upgrade packages * fix: Fix Metro Config * Cleanup config * Properly mirror Images on save * Prepare MediaRecorder * Start/Stop MediaRecorder * Remove `takeSnapshot()` It no longer works on Android and never worked on iOS. Users could use useFrameProcessor to take a Snapshot * Use `MediaCodec` * Move to `VideoRecording` class * Cleanup Snapshot * Create `SkiaPreviewView` hybrid class * Create OpenGL context * Create `SkiaPreviewView` * Fix texture creation missing context * Draw red frame * Somehow get it working * Add Skia CMake setup * Start looping * Init OpenGL * Refactor into `SkiaRenderer` * Cleanup PreviewSize * Set up * Only re-render UI if there is a new Frame * Preview * Fix init * Try rendering Preview * Update SkiaPreviewView.kt * Log version * Try using Skia (fail) * Drawwwww!!!!!!!!!! :tada: * Use Preview Size * Clear first * Refactor into SkiaRenderer * Add `previewType: "none"` on iOS * Simplify a lot * Draw Camera? For some reason? I have no idea anymore * Fix OpenGL errors * Got it kinda working again? * Actually draw Frame woah * Clean up code * Cleanup * Update on main * Synchronize render calls * holy shit * Update SkiaRenderer.cpp * Update SkiaRenderer.cpp * Refactor * Update SkiaRenderer.cpp * Check for `NO_INPUT_TEXTURE`^ * Post & Wait * Set input size * Add Video back again * Allow session without preview * Convert JPEG to byte[] * feat: Use `ImageReader` and use YUV Image Buffers in Skia Context (#1689) * Try to pass YUV Buffers as Pixmaps * Create pixmap! * Clean up * Render to preview * Only render if we have an output surface * Update SkiaRenderer.cpp * Fix Y+U+V sampling code * Cleanup * Fix Semaphore 0 * Use 4:2:0 YUV again idk * Update SkiaRenderer.h * Set minSdk to 26 * Set surface * Revert "Set minSdk to 26" This reverts commit c4085b7c16c628532e5c2d68cf7ed11c751d0b48. * Set previewType * feat: Video Recording with Camera2 (#1691) * Rename * Update CameraSession.kt * Use `SurfaceHolder` instead of `SurfaceView` for output * Update CameraOutputs.kt * Update CameraSession.kt * fix: Fix crash when Preview is null * Check if snapshot capture is supported * Update RecordingSession.kt * S * Use `MediaRecorder` * Make audio optional * Add Torch * Output duration * Update RecordingSession.kt * Start RecordingSession * logs * More log * Base for preparing pass-through Recording * Use `ImageWriter` to append Images to the Recording Surface * Stream PRIVATE GPU_SAMPLED_IMAGE Images * Add flags * Close session on stop * Allow customizing `videoCodec` and `fileType` * Enable Torch * Fix Torch Mode * Fix comparing outputs with hashCode * Update CameraSession.kt * Correctly pass along Frame Processor * fix: Use AUDIO_BIT_RATE of 16 * 44,1Khz * Use CAMCORDER instead of MIC microphone * Use 1 channel * fix: Use `Orientation` * Add `native` PixelFormat * Update iOS to latest Skia integration * feat: Add `pixelFormat` property to Camera * Catch error in configureSession * Fix JPEG format * Clean up best match finder * Update CameraDeviceDetails.kt * Clamp sizes by maximum CamcorderProfile size * Remove `getAvailableVideoCodecs` * chore: release 3.0.0-rc.5 * Use maximum video size of RECORD as default * Update CameraDeviceDetails.kt * Add a todo * Add JSON device to issue report * Prefer `full` devices and flash * Lock to 30 FPS on Samsung * Implement Zoom * Refactor * Format -> PixelFormat * fix: Feat `pixelFormat` -> `pixelFormats` * Update TROUBLESHOOTING.mdx * Format * fix: Implement `zoom` for Photo Capture * fix: Don't run if `isActive` is `false` * fix: Call `examplePlugin(frame)` * fix: Fix Flash * fix: Use `react-native-worklets-core`! * fix: Fix import
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* Photo and Video capture
* Customizable devices and multi-cameras ("fish-eye" zoom)
* Customizable resolutions and aspect-ratios (4k/8k images)
* Customizable FPS (30..240 FPS)
* [Frame Processors](https://react-native-vision-camera.com/docs/guides/frame-processors) (JS worklets to run QR-Code scanning, facial recognition, AI object detection, realtime video chats, ...)
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* Smooth zooming (Reanimated)
* Fast pause and resume
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* HDR & Night modes
* Custom C++/GPU accelerated video pipeline (OpenGL)
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Install VisionCamera from npm:
```sh
yarn add react-native-vision-camera
cd ios && pod install
```
..and get started by [setting up permissions](https://react-native-vision-camera.com/docs/guides)!
### Documentation
* [Guides](https://react-native-vision-camera.com/docs/guides)
* [API](https://react-native-vision-camera.com/docs/api)
* [Example](./package/example/)
* [Frame Processor Plugins](https://react-native-vision-camera.com/docs/guides/frame-processor-plugin-list)
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### V3
You're looking at the V3 version of VisionCamera, which features a full rewrite on the Android codebase and a huge refactor on the iOS codebase. If you encounter issues on V3, you can also [downgrade to V2](https://github.com/mrousavy/react-native-vision-camera/tree/v2), which is still partially supported.
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### Example
```tsx
function App() {
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const devices = useCameraDevices('wide-angle-camera')
const device = devices.back
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if (device == null) return <LoadingView />
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return (
<Camera
style={StyleSheet.absoluteFill}
device={device}
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isActive={true}
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/>
)
}
```
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> See the [example](./package/example/) app
### Adopting at scale
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<a href="https://github.com/sponsors/mrousavy">
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<img align="right" width="160" alt="This library helped you? Consider sponsoring!" src=".github/funding-octocat.svg">
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</a>
VisionCamera is provided _as is_, I work on it in my free time.
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If you're integrating VisionCamera in a production app, consider [funding this project](https://github.com/sponsors/mrousavy) and <a href="mailto:me@mrousavy.com?subject=Adopting VisionCamera at scale">contact me</a> to receive premium enterprise support, help with issues, prioritize bugfixes, request features, help at integrating VisionCamera and/or Frame Processors, and more.
### Socials
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* 🐦 [**Follow me on Twitter**](https://twitter.com/mrousavy) for updates
* 📝 [**Check out my blog**](https://mrousavy.com/blog) for examples and experiments
* 💖 [**Sponsor me on GitHub**](https://github.com/sponsors/mrousavy) to support my work
* 🍪 [**Buy me a Ko-Fi**](https://ko-fi.com/mrousavy) to support my work