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上传时间: 2019-04-04
详细说明： # NDK Camera [](https://travis-ci.org/luncliff/NdkCamera) > If there is an issue with this library, please mail to luncliffgmail.com Simplified [Android Camera 2 API](https://www.youtube.com/watch?v=Bi4QjMfSOE0). Available for both Java/JNI. - API level: 24+ - NDK ### Reference - Personal Template Project: https://github.com/luncliff/Muffin - [API Reference](https://developer.android.com/ndk/reference/group/camera) - [Android Camera Overview](https://source.android.com/devices/camera) - Camera HAL3: https://source.android.com/devices/camera/camera3 - HAL Subsystem: https://source.android.com/devices/camera/camera3_requests_hal - Multi-Camera Support: https://source.android.com/devices/camera/multi-camera - Version Support: https://source.android.com/devices/camera/versioning - Android Media - https://source.android.com/devices/media/framework-hardening ## How to ### Build For **Windows** environment, latest [Android Studio](https://developer.android.com/studio/) is recommended. For **Linux/MacOS**, [Gradle 4.10.2](https://gradle.org/) will be enough. ```console $ git clone https://github.com/luncliff/NdkCamera $ cd ./NdkCamera $ gradle assemble # Build: libndk_camera.so & NdkCamera.aar ``` ### Test Connect your device and run the test with Gradle. Please reference the [test codes](./android/test/ndcam/). ```console $ gradle connectedAndroidTest # Run test ``` ### Use The following code shows working with `SurfaceView` class. ```java package dev.example; // ... import dev.ndcam.*; // Expect we already have a camera permission public class SurfaceDisplay implements SurfaceHolder.Callback { SurfaceView surfaceView; Surface surface; ndcam.Device camera; Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // ... // Load/Init library ndcam.CameraModel.Init(); surfaceView = findViewById(R.id.surfaceView); SurfaceHolder holder = surfaceView.getHolder(); holder.setFixedSize(1920, 1080); holder.setFormat(ImageFormat.YUV_420_888); holder.addCallback(this); } Override public void surfaceCreated(SurfaceHolder surfaceHolder) { // Get all devices in array form for(ndcam.Device device : ndcam.CameraModel.GetDevices()) if(device.facing() == CameraCharacteristics.LENS_FACING_BACK) camera = device; } Override public void surfaceChanged(SurfaceHolder surfaceHolder, int format, int width, int height) { // Make a repeating caputre request with surface surface = surfaceHolder.getSurface(); camera.repeat(surface); } Override public void surfaceDestroyed(SurfaceHolder surfaceHolder) { // No more capture if(camera != null) camera.stopRepeat(); } } ```
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