RCTCamera.java 17.7 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466
/**
 * Created by Fabrice Armisen (farmisen@gmail.com) on 1/4/16.
 */

package com.lwansbrough.RCTCamera;

import android.hardware.Camera;
import android.media.CamcorderProfile;
import android.util.Log;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.lang.Math;

public class RCTCamera {
    private static RCTCamera ourInstance;
    private final HashMap<Integer, CameraInfoWrapper> _cameraInfos;
    private final HashMap<Integer, Integer> _cameraTypeToIndex;
    private final Map<Number, Camera> _cameras;
    private static final Resolution RESOLUTION_480P = new Resolution(853, 480); // 480p shoots for a 16:9 HD aspect ratio, but can otherwise fall back/down to any other supported camera sizes, such as 800x480 or 720x480, if (any) present. See getSupportedPictureSizes/getSupportedVideoSizes below.
    private static final Resolution RESOLUTION_720P = new Resolution(1280, 720);
    private static final Resolution RESOLUTION_1080P = new Resolution(1920, 1080);
    private boolean _barcodeScannerEnabled = false;
    private List<String> _barCodeTypes = null;
    private int _orientation = -1;
    private int _actualDeviceOrientation = 0;
    private int _adjustedDeviceOrientation = 0;

    public static RCTCamera getInstance() {
        return ourInstance;
    }
    public static void createInstance(int deviceOrientation) {
        ourInstance = new RCTCamera(deviceOrientation);
    }


    public synchronized Camera acquireCameraInstance(int type) {
        if (null == _cameras.get(type) && null != _cameraTypeToIndex.get(type)) {
            try {
                Camera camera = Camera.open(_cameraTypeToIndex.get(type));
                _cameras.put(type, camera);
                adjustPreviewLayout(type);
            } catch (Exception e) {
                Log.e("RCTCamera", "acquireCameraInstance failed", e);
            }
        }
        return _cameras.get(type);
    }

    public void releaseCameraInstance(int type) {
        // Release seems async and creates race conditions. Remove from map first before releasing.
        Camera releasingCamera = _cameras.get(type);
        if (null != releasingCamera) {
            _cameras.remove(type);
            releasingCamera.release();
        }
    }

    public int getPreviewWidth(int type) {
        CameraInfoWrapper cameraInfo = _cameraInfos.get(type);
        if (null == cameraInfo) {
            return 0;
        }
        return cameraInfo.previewWidth;
    }

    public int getPreviewHeight(int type) {
        CameraInfoWrapper cameraInfo = _cameraInfos.get(type);
        if (null == cameraInfo) {
            return 0;
        }
        return cameraInfo.previewHeight;
    }

    public Camera.Size getBestSize(List<Camera.Size> supportedSizes, int maxWidth, int maxHeight) {
        Camera.Size bestSize = null;
        for (Camera.Size size : supportedSizes) {
            if (size.width > maxWidth || size.height > maxHeight) {
                continue;
            }

            if (bestSize == null) {
                bestSize = size;
                continue;
            }

            int resultArea = bestSize.width * bestSize.height;
            int newArea = size.width * size.height;

            if (newArea > resultArea) {
                bestSize = size;
            }
        }

        return bestSize;
    }

    private Camera.Size getSmallestSize(List<Camera.Size> supportedSizes) {
        Camera.Size smallestSize = null;
        for (Camera.Size size : supportedSizes) {
            if (smallestSize == null) {
                smallestSize = size;
                continue;
            }

            int resultArea = smallestSize.width * smallestSize.height;
            int newArea = size.width * size.height;

            if (newArea < resultArea) {
                smallestSize = size;
            }
        }

        return smallestSize;
    }

    private Camera.Size getClosestSize(List<Camera.Size> supportedSizes, int matchWidth, int matchHeight) {
      Camera.Size closestSize = null;
      for (Camera.Size size : supportedSizes) {
          if (closestSize == null) {
              closestSize = size;
              continue;
          }

          int currentDelta = Math.abs(closestSize.width - matchWidth) * Math.abs(closestSize.height - matchHeight);
          int newDelta = Math.abs(size.width - matchWidth) * Math.abs(size.height - matchHeight);

          if (newDelta < currentDelta) {
              closestSize = size;
          }
      }
      return closestSize;
    }

    protected List<Camera.Size> getSupportedVideoSizes(Camera camera) {
        Camera.Parameters params = camera.getParameters();
        // defer to preview instead of params.getSupportedVideoSizes() http://bit.ly/1rxOsq0
        // but prefer SupportedVideoSizes!
        List<Camera.Size> sizes = params.getSupportedVideoSizes();
        if (sizes != null) {
            return sizes;
        }

        // Video sizes may be null, which indicates that all the supported
        // preview sizes are supported for video recording.
        return params.getSupportedPreviewSizes();
    }

    public int getOrientation() {
        return _orientation;
    }

    public void setOrientation(int orientation) {
        if (_orientation == orientation) {
            return;
        }
        _orientation = orientation;
        adjustPreviewLayout(RCTCameraModule.RCT_CAMERA_TYPE_FRONT);
        adjustPreviewLayout(RCTCameraModule.RCT_CAMERA_TYPE_BACK);
    }

    public boolean isBarcodeScannerEnabled() {
      return _barcodeScannerEnabled;
    }

    public void setBarcodeScannerEnabled(boolean barcodeScannerEnabled) {
        _barcodeScannerEnabled = barcodeScannerEnabled;
    }

    public List<String> getBarCodeTypes() {
        return _barCodeTypes;
    }

    public void setBarCodeTypes(List<String> barCodeTypes) {
        _barCodeTypes = barCodeTypes;
    }

    public int getActualDeviceOrientation() {
        return _actualDeviceOrientation;
    }

    public void setAdjustedDeviceOrientation(int orientation) {
        _adjustedDeviceOrientation = orientation;
    }

    public int getAdjustedDeviceOrientation() {
        return _adjustedDeviceOrientation;
    }

    public void setActualDeviceOrientation(int actualDeviceOrientation) {
        _actualDeviceOrientation = actualDeviceOrientation;
        adjustPreviewLayout(RCTCameraModule.RCT_CAMERA_TYPE_FRONT);
        adjustPreviewLayout(RCTCameraModule.RCT_CAMERA_TYPE_BACK);
    }

    public void setCaptureMode(final int cameraType, final int captureMode) {
        Camera camera = _cameras.get(cameraType);
        if (camera == null) {
            return;
        }

        // Set (video) recording hint based on camera type. For video recording, setting
        // this hint can help reduce the time it takes to start recording.
        Camera.Parameters parameters = camera.getParameters();
        parameters.setRecordingHint(captureMode == RCTCameraModule.RCT_CAMERA_CAPTURE_MODE_VIDEO);
        camera.setParameters(parameters);
    }

    public void setCaptureQuality(int cameraType, String captureQuality) {
        Camera camera = this.acquireCameraInstance(cameraType);
        if (camera == null) {
            return;
        }

        Camera.Parameters parameters = camera.getParameters();
        Camera.Size pictureSize = null;
        List<Camera.Size> supportedSizes = parameters.getSupportedPictureSizes();
        switch (captureQuality) {
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_LOW:
                pictureSize = getSmallestSize(supportedSizes);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_MEDIUM:
                pictureSize = supportedSizes.get(supportedSizes.size() / 2);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_HIGH:
                pictureSize = getBestSize(parameters.getSupportedPictureSizes(), Integer.MAX_VALUE, Integer.MAX_VALUE);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_PREVIEW:
                Camera.Size optimalPreviewSize = getBestSize(parameters.getSupportedPreviewSizes(), Integer.MAX_VALUE, Integer.MAX_VALUE);
                pictureSize = getClosestSize(parameters.getSupportedPictureSizes(), optimalPreviewSize.width, optimalPreviewSize.height);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_480P:
                pictureSize = getBestSize(supportedSizes, RESOLUTION_480P.width, RESOLUTION_480P.height);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_720P:
                pictureSize = getBestSize(supportedSizes, RESOLUTION_720P.width, RESOLUTION_720P.height);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_1080P:
                pictureSize = getBestSize(supportedSizes, RESOLUTION_1080P.width, RESOLUTION_1080P.height);
                break;
        }

        if (pictureSize != null) {
            parameters.setPictureSize(pictureSize.width, pictureSize.height);
            camera.setParameters(parameters);
        }
    }

    public CamcorderProfile setCaptureVideoQuality(int cameraType, String captureQuality) {
        Camera camera = this.acquireCameraInstance(cameraType);
        if (camera == null) {
            return null;
        }

        Camera.Size videoSize = null;
        List<Camera.Size> supportedSizes = getSupportedVideoSizes(camera);
        CamcorderProfile cm = null;
        switch (captureQuality) {
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_LOW:
                videoSize = getSmallestSize(supportedSizes);
                cm = CamcorderProfile.get(_cameraTypeToIndex.get(cameraType), CamcorderProfile.QUALITY_480P);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_MEDIUM:
                videoSize = supportedSizes.get(supportedSizes.size() / 2);
                cm = CamcorderProfile.get(_cameraTypeToIndex.get(cameraType), CamcorderProfile.QUALITY_720P);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_HIGH:
                videoSize = getBestSize(supportedSizes, Integer.MAX_VALUE, Integer.MAX_VALUE);
                cm = CamcorderProfile.get(_cameraTypeToIndex.get(cameraType), CamcorderProfile.QUALITY_HIGH);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_480P:
                videoSize = getBestSize(supportedSizes, RESOLUTION_480P.width, RESOLUTION_480P.height);
                cm = CamcorderProfile.get(_cameraTypeToIndex.get(cameraType), CamcorderProfile.QUALITY_480P);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_720P:
                videoSize = getBestSize(supportedSizes, RESOLUTION_720P.width, RESOLUTION_720P.height);
                cm = CamcorderProfile.get(_cameraTypeToIndex.get(cameraType), CamcorderProfile.QUALITY_720P);
                break;
            case RCTCameraModule.RCT_CAMERA_CAPTURE_QUALITY_1080P:
                videoSize = getBestSize(supportedSizes, RESOLUTION_1080P.width, RESOLUTION_1080P.height);
                cm = CamcorderProfile.get(_cameraTypeToIndex.get(cameraType), CamcorderProfile.QUALITY_1080P);
                break;
        }

        if (cm == null){
            return null;
        }

        if (videoSize != null) {
            cm.videoFrameHeight = videoSize.height;
            cm.videoFrameWidth = videoSize.width;
        }

        return cm;
    }

    public void setTorchMode(int cameraType, int torchMode) {
        Camera camera = this.acquireCameraInstance(cameraType);
        if (null == camera) {
            return;
        }

        Camera.Parameters parameters = camera.getParameters();
        String value = parameters.getFlashMode();
        switch (torchMode) {
            case RCTCameraModule.RCT_CAMERA_TORCH_MODE_ON:
                value = Camera.Parameters.FLASH_MODE_TORCH;
                break;
            case RCTCameraModule.RCT_CAMERA_TORCH_MODE_OFF:
                value = Camera.Parameters.FLASH_MODE_OFF;
                break;
        }

        List<String> flashModes = parameters.getSupportedFlashModes();
        if (flashModes != null && flashModes.contains(value)) {
            parameters.setFlashMode(value);
            camera.setParameters(parameters);
        }
    }

    public void setFlashMode(int cameraType, int flashMode) {
        Camera camera = this.acquireCameraInstance(cameraType);
        if (null == camera) {
            return;
        }

        Camera.Parameters parameters = camera.getParameters();
        String value = parameters.getFlashMode();
        switch (flashMode) {
            case RCTCameraModule.RCT_CAMERA_FLASH_MODE_AUTO:
                value = Camera.Parameters.FLASH_MODE_AUTO;
                break;
            case RCTCameraModule.RCT_CAMERA_FLASH_MODE_ON:
                value = Camera.Parameters.FLASH_MODE_ON;
                break;
            case RCTCameraModule.RCT_CAMERA_FLASH_MODE_OFF:
                value = Camera.Parameters.FLASH_MODE_OFF;
                break;
        }
        List<String> flashModes = parameters.getSupportedFlashModes();
        if (flashModes != null && flashModes.contains(value)) {
            parameters.setFlashMode(value);
            camera.setParameters(parameters);
        }
    }

    public void adjustCameraRotationToDeviceOrientation(int type, int deviceOrientation) {
        Camera camera = _cameras.get(type);
        if (null == camera) {
            return;
        }

        CameraInfoWrapper cameraInfo = _cameraInfos.get(type);
        int rotation;
        int orientation = cameraInfo.info.orientation;
        if (cameraInfo.info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
            rotation = (orientation + deviceOrientation * 90) % 360;
        } else {
            rotation = (orientation - deviceOrientation * 90 + 360) % 360;
        }
        cameraInfo.rotation = rotation;
        Camera.Parameters parameters = camera.getParameters();
        parameters.setRotation(cameraInfo.rotation);

        try {
            camera.setParameters(parameters);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void adjustPreviewLayout(int type) {
        Camera camera = _cameras.get(type);
        if (null == camera) {
            return;
        }

        CameraInfoWrapper cameraInfo = _cameraInfos.get(type);
        int displayRotation;
        int rotation;
        int orientation = cameraInfo.info.orientation;
        if (cameraInfo.info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
            rotation = (orientation + _actualDeviceOrientation * 90) % 360;
            displayRotation = (720 - orientation - _actualDeviceOrientation * 90) % 360;
        } else {
            rotation = (orientation - _actualDeviceOrientation * 90 + 360) % 360;
            displayRotation = rotation;
        }
        cameraInfo.rotation = rotation;
        // TODO: take in account the _orientation prop

        setAdjustedDeviceOrientation(rotation);
        camera.setDisplayOrientation(displayRotation);

        Camera.Parameters parameters = camera.getParameters();
        parameters.setRotation(cameraInfo.rotation);

        // set preview size
        // defaults to highest resolution available
        Camera.Size optimalPreviewSize = getBestSize(parameters.getSupportedPreviewSizes(), Integer.MAX_VALUE, Integer.MAX_VALUE);
        int width = optimalPreviewSize.width;
        int height = optimalPreviewSize.height;

        parameters.setPreviewSize(width, height);
        try {
            camera.setParameters(parameters);
        } catch (Exception e) {
            e.printStackTrace();
        }

        if (cameraInfo.rotation == 0 || cameraInfo.rotation == 180) {
            cameraInfo.previewWidth = width;
            cameraInfo.previewHeight = height;
        } else {
            cameraInfo.previewWidth = height;
            cameraInfo.previewHeight = width;
        }
    }

    private RCTCamera(int deviceOrientation) {
        _cameras = new HashMap<>();
        _cameraInfos = new HashMap<>();
        _cameraTypeToIndex = new HashMap<>();

        _actualDeviceOrientation = deviceOrientation;

        // map camera types to camera indexes and collect cameras properties
        for (int i = 0; i < Camera.getNumberOfCameras(); i++) {
            Camera.CameraInfo info = new Camera.CameraInfo();
            Camera.getCameraInfo(i, info);
            if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT && _cameraInfos.get(RCTCameraModule.RCT_CAMERA_TYPE_FRONT) == null) {
                _cameraInfos.put(RCTCameraModule.RCT_CAMERA_TYPE_FRONT, new CameraInfoWrapper(info));
                _cameraTypeToIndex.put(RCTCameraModule.RCT_CAMERA_TYPE_FRONT, i);
                acquireCameraInstance(RCTCameraModule.RCT_CAMERA_TYPE_FRONT);
                releaseCameraInstance(RCTCameraModule.RCT_CAMERA_TYPE_FRONT);
            } else if (info.facing == Camera.CameraInfo.CAMERA_FACING_BACK && _cameraInfos.get(RCTCameraModule.RCT_CAMERA_TYPE_BACK) == null) {
                _cameraInfos.put(RCTCameraModule.RCT_CAMERA_TYPE_BACK, new CameraInfoWrapper(info));
                _cameraTypeToIndex.put(RCTCameraModule.RCT_CAMERA_TYPE_BACK, i);
                acquireCameraInstance(RCTCameraModule.RCT_CAMERA_TYPE_BACK);
                releaseCameraInstance(RCTCameraModule.RCT_CAMERA_TYPE_BACK);
            }
        }
    }

    private class CameraInfoWrapper {
        public final Camera.CameraInfo info;
        public int rotation = 0;
        public int previewWidth = -1;
        public int previewHeight = -1;

        public CameraInfoWrapper(Camera.CameraInfo info) {
            this.info = info;
        }
    }

    private static class Resolution {
        public int width;
        public int height;

        public Resolution(final int width, final int height) {
            this.width = width;
            this.height = height;
        }
    }
}