android.hardware.camera2.params.StreamConfigurationMap源码实例Demo-ICode联盟

类android.hardware.camera2.params.StreamConfigurationMap源码实例Demo

下面列出了怎么用android.hardware.camera2.params.StreamConfigurationMap的API类实例代码及写法，或者点击链接到github查看源代码。

源代码1 项目： VIA-AI 文件： Helper.java

public void forceScanAllCameras(Activity activity) {
    CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
    try {
        String[] idList = manager.getCameraIdList();

        int maxCameraCnt = idList.length;

        for (int index = 0; index < maxCameraCnt; index++) {
            String cameraId = manager.getCameraIdList()[index];
            CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
            StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        }
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }

}

源代码2 项目： VIA-AI 文件： VIACamera.java

@TargetApi(21)
public static Size[] querySupportResolution(Context context, int index) {
    CameraManager manager =
            (CameraManager)context.getSystemService(CAMERA_SERVICE);
    try {
        CameraCharacteristics chars
                = manager.getCameraCharacteristics(index+"");

        StreamConfigurationMap configurationMap = chars.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);

        return configurationMap.getOutputSizes(ImageFormat.YUV_420_888);

    } catch(CameraAccessException e){
        e.printStackTrace();
    }
    return null;
}

源代码3 项目： mobile-ar-sensor-logger 文件： Camera2Proxy.java

public Size configureCamera(int width, int height) {
    try {
        mCameraIdStr = CameraUtils.getRearCameraId(mCameraManager);
        mCameraCharacteristics = mCameraManager.getCameraCharacteristics(mCameraIdStr);
        sensorArraySize = mCameraCharacteristics.get(
                CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);

        StreamConfigurationMap map = mCameraCharacteristics.get(CameraCharacteristics
                .SCALER_STREAM_CONFIGURATION_MAP);
        mVideoSize = CameraUtils.chooseVideoSize(
                map.getOutputSizes(MediaRecorder.class), width, height, width);

        mFocalLengthHelper.setLensParams(mCameraCharacteristics);
        mFocalLengthHelper.setmImageSize(mVideoSize);

        mPreviewSize = CameraUtils.chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class),
                width, height, mVideoSize);
        Log.d(TAG, "Video size " + mVideoSize.toString() +
                " preview size " + mPreviewSize.toString());

    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
    return mPreviewSize;
}

源代码4 项目： SnapchatClone 文件： CameraFragment.java

private void setupCamera(int width, int height) {
    try {
        for (String camId: cameraManager.getCameraIdList()) {
            CameraCharacteristics cameraCharacteristics = cameraManager.getCameraCharacteristics(camId);
            if (cameraCharacteristics.get(CameraCharacteristics.LENS_FACING) == cameraFacing) {
                StreamConfigurationMap streamConfigurationMap = cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
                previewSize = chooseOptimalSize(streamConfigurationMap.getOutputSizes(SurfaceTexture.class),
                        streamConfigurationMap.getOutputSizes(ImageFormat.JPEG), width, height);
                cameraId = camId;
                return;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

源代码5 项目： Camera2 文件： OneCameraZslImpl.java

/**
 * @return The largest supported picture size.
 */
public Size getDefaultPictureSize()
{
    StreamConfigurationMap configs =
            mCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    android.util.Size[] supportedSizes = configs.getOutputSizes(sCaptureImageFormat);

    // Find the largest supported size.
    android.util.Size largestSupportedSize = supportedSizes[0];
    long largestSupportedSizePixels =
            largestSupportedSize.getWidth() * largestSupportedSize.getHeight();
    for (int i = 0; i < supportedSizes.length; i++)
    {
        long numPixels = supportedSizes[i].getWidth() * supportedSizes[i].getHeight();
        if (numPixels > largestSupportedSizePixels)
        {
            largestSupportedSize = supportedSizes[i];
            largestSupportedSizePixels = numPixels;
        }
    }

    return new Size(largestSupportedSize.getWidth(), largestSupportedSize.getHeight());
}

源代码6 项目： Camera2 文件： OneCameraCharacteristicsImpl.java

@Override
public List<Size> getSupportedPictureSizes(int imageFormat)
{
    StreamConfigurationMap configMap;
    try
    {
        configMap = mCameraCharacteristics.get(
                CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    } catch (Exception ex)
    {
        Log.e(TAG, "Unable to obtain picture sizes.", ex);
        // See b/19623115   where java.lang.AssertionError can be thrown due to HAL error
        return new ArrayList<>(0);
    }

    ArrayList<Size> supportedPictureSizes = new ArrayList<>();
    for (android.util.Size androidSize : configMap.getOutputSizes(imageFormat))
    {
        supportedPictureSizes.add(new Size(androidSize));
    }
    return supportedPictureSizes;
}

源代码7 项目： Camera2 文件： OneCameraCharacteristicsImpl.java

@Override
public List<Size> getSupportedPreviewSizes()
{
    StreamConfigurationMap configMap;
    try
    {
        configMap = mCameraCharacteristics.get(
                CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    } catch (Exception ex)
    {
        Log.e(TAG, "Unable to obtain preview sizes.", ex);
        // See b/19623115   where java.lang.AssertionError can be thrown due to HAL error
        return new ArrayList<>(0);
    }
    ArrayList<Size> supportedPictureSizes = new ArrayList<>();
    for (android.util.Size androidSize : configMap.getOutputSizes(SurfaceTexture.class))
    {
        supportedPictureSizes.add(new Size(androidSize));
    }
    return supportedPictureSizes;
}

源代码8 项目： Camera2 文件： OneCameraImpl.java

/**
 * @return The largest supported picture size.
 */
public Size getDefaultPictureSize()
{
    StreamConfigurationMap configs = mCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    android.util.Size[] supportedSizes = configs.getOutputSizes(sCaptureImageFormat);

    // Find the largest supported size.
    android.util.Size largestSupportedSize = supportedSizes[0];
    long largestSupportedSizePixels = largestSupportedSize.getWidth() * largestSupportedSize.getHeight();
    for (int i = 1; i < supportedSizes.length; i++)
    {
        long numPixels = supportedSizes[i].getWidth() * supportedSizes[i].getHeight();
        if (numPixels > largestSupportedSizePixels)
        {
            largestSupportedSize = supportedSizes[i];
            largestSupportedSizePixels = numPixels;
        }
    }
    return new Size(largestSupportedSize.getWidth(), largestSupportedSize.getHeight());
}

源代码9 项目： CameraDemo 文件： Camera2Proxy.java

@SuppressLint("MissingPermission")
public void openCamera(int width, int height) {
    Log.v(TAG, "openCamera");
    startBackgroundThread(); // 对应 releaseCamera() 方法中的 stopBackgroundThread()
    mOrientationEventListener.enable();
    try {
        mCameraCharacteristics = mCameraManager.getCameraCharacteristics(Integer.toString(mCameraId));
        StreamConfigurationMap map = mCameraCharacteristics.get(CameraCharacteristics
                .SCALER_STREAM_CONFIGURATION_MAP);
        // 拍照大小，选择能支持的一个最大的图片大小
        Size largest = Collections.max(Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)), new
                CompareSizesByArea());
        Log.d(TAG, "picture size: " + largest.getWidth() + "*" + largest.getHeight());
        mImageReader = ImageReader.newInstance(largest.getWidth(), largest.getHeight(), ImageFormat.JPEG, 2);
        // 预览大小，根据上面选择的拍照图片的长宽比，选择一个和控件长宽差不多的大小
        mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height, largest);
        Log.d(TAG, "preview size: " + mPreviewSize.getWidth() + "*" + mPreviewSize.getHeight());
        // 打开摄像头
        mCameraManager.openCamera(Integer.toString(mCameraId), mStateCallback, mBackgroundHandler);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

源代码10 项目： pixelvisualcorecamera 文件： Camera2Controller.java

public Size[] getSupportedPictureSizes(String cameraId) {
  Size[] outputSizes = null;
  CameraManager manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
  try {
    CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
    StreamConfigurationMap map = characteristics.get(
        CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    if (map != null) {
      outputSizes = map.getOutputSizes(ImageFormat.JPEG);
    }
  } catch (CameraAccessException e) {
    Log.w(TAG, e);
  }

  return outputSizes;
}

源代码11 项目： habpanelviewer 文件： CameraImplV2.java

@Override
public void setDeviceRotation(int deviceOrientation) {
    mDeviceOrientation = deviceOrientation;

    // configure transform if preview is running only
    if (isPreviewRunning()) {
        try {
            CameraCharacteristics characteristics = mCamManager.getCameraCharacteristics(mCamera.getId());

            StreamConfigurationMap map = characteristics.get(
                    CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
            if (map == null) {
                Log.w(TAG, "Could not find a valid preview size");
            } else {
                final Point previewSize = chooseOptimalSize(toPointArray(map.getOutputSizes(ImageFormat.YUV_420_888)));
                setDeviceOrientation(previewSize);
            }
        } catch (CameraAccessException e) {
            Log.e(TAG, "Failed to set device orientation", e);
        }
    }
}

源代码12 项目： rtmp-rtsp-stream-client-java 文件： Camera2ApiManager.java

public Size[] getCameraResolutions(Facing facing) {
  try {
    CameraCharacteristics characteristics = getCharacteristicsForFacing(cameraManager, facing);
    if (characteristics == null) {
      return new Size[0];
    }

    StreamConfigurationMap streamConfigurationMap =
        characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    Size[] outputSizes = streamConfigurationMap.getOutputSizes(SurfaceTexture.class);
    return outputSizes != null ? outputSizes : new Size[0];
  } catch (CameraAccessException | NullPointerException e) {
    Log.e(TAG, "Error", e);
    return new Size[0];
  }
}

源代码13 项目： libcommon 文件： Camera2Utils.java

/**
 * 指定した条件に合う解像度を選択する
 * @param manager
 * @param cameraId
 * @param targetFace
 * @param width
 * @param height
 * @param degrees
 * @return
 * @throws CameraAccessException
 */
public static CameraConst.CameraInfo chooseOptimalSize(
	@NonNull final CameraManager manager,
	final String cameraId, @CameraConst.FaceType final int targetFace,
	final int width, final int height, final int degrees)
		throws CameraAccessException {

	if (DEBUG) Log.v(TAG,
		String.format("chooseOptimalSize:Size(%dx%d),targetFace=%d,degrees=%d",
			width, height, targetFace, degrees));

	final CameraCharacteristics characteristics
		= manager.getCameraCharacteristics(cameraId);
	final StreamConfigurationMap map = characteristics.get(
			CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
	final Size previewSize
		= chooseOptimalSize(characteristics, map, width, height, degrees);
	final int orientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
	if (!TextUtils.isEmpty(cameraId) && (previewSize != null)) {
		return new CameraConst.CameraInfo(cameraId, targetFace, orientation,
			previewSize.getWidth(), previewSize.getHeight());
	}
	return null;
}

源代码14 项目： CameraCompat 文件： Camera2Helper.java

@Override
protected List<PreviewSize> getSupportedSize() {
    try {
        CameraCharacteristics characteristics = mCameraManager.getCameraCharacteristics(
                getCurrentCameraId());
        StreamConfigurationMap map =
                characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if (map == null) {
            return Collections.singletonList(new PreviewSize(mPreviewWidth, mPreviewHeight));
        }
        Size[] supportedSize = map.getOutputSizes(SurfaceTexture.class);
        if (supportedSize == null || supportedSize.length == 0) {
            return Collections.singletonList(new PreviewSize(mPreviewWidth, mPreviewHeight));
        }
        List<PreviewSize> results = new ArrayList<>();
        for (Size size : supportedSize) {
            results.add(new PreviewSize(size.getWidth(), size.getHeight()));
        }
        return results;
    } catch (CameraAccessException e) {
        throw new CameraAccessError();
    }
}

源代码15 项目： MediaPickerInstagram 文件： Camera2.java

/**
 * <p>Collects some information from {@link #mCameraCharacteristics}.</p>
 * <p>This rewrites {@link #mPreviewSizes}, {@link #mPictureSizes}, and optionally,
 * {@link #mAspectRatio}.</p>
 */
private void collectCameraInfo() {
    StreamConfigurationMap map = mCameraCharacteristics.get(
            CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    if (map == null) {
        throw new IllegalStateException("Failed to get configuration map: " + mCameraId);
    }
    mPreviewSizes.clear();
    for (android.util.Size size : map.getOutputSizes(mPreview.getOutputClass())) {
        mPreviewSizes.add(new Size(size.getWidth(), size.getHeight()));
    }
    mPictureSizes.clear();
    collectPictureSizes(mPictureSizes, map);

    if (!mPreviewSizes.ratios().contains(mAspectRatio)) {
        mAspectRatio = mPreviewSizes.ratios().iterator().next();
    }
}

源代码16 项目： DeviceConnect-Android 文件： Camera2Helper.java

/**
 * カメラID に対応したカメラデバイスがサポートしているプレビューサイズのリストを取得します.
 *
 * @param cameraManager カメラマネージャ
 * @param cameraId カメラID
 * @return サポートしているプレビューサイズのリスト
 */
@NonNull
public static List<Size> getSupportedPreviewSizes(final CameraManager cameraManager, final String cameraId) {
    List<Size> previewSizes = new ArrayList<>();
    try {
        CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
        StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if (map != null) {
            previewSizes = Arrays.asList(map.getOutputSizes(SurfaceTexture.class));
            Collections.sort(previewSizes, SizeComparator);
        }
    } catch (CameraAccessException e) {
        // ignore.
    }
    return previewSizes;
}

源代码17 项目： DeviceConnect-Android 文件： Camera2Helper.java

/**
 * カメラID に対応したカメラデバイスがサポートしている写真サイズのリストを取得します.
 *
 * @param cameraManager カメラマネージャ
 * @param cameraId カメラID
 * @return サポートしている写真サイズのリスト
 */
@NonNull
public static List<Size> getSupportedPictureSizes(final CameraManager cameraManager, final String cameraId) {
    List<Size> pictureSizes = new ArrayList<>();
    try {
        CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
        StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if(map != null) {
            pictureSizes = Arrays.asList(map.getOutputSizes(ImageFormat.YUV_420_888));
            Collections.sort(pictureSizes, SizeComparator);
        }
    } catch (CameraAccessException e) {
        // ignore.
    }
    return pictureSizes;
}

源代码18 项目： DeviceConnect-Android 文件： Camera2Helper.java

/**
 * カメラID に対応したカメラデバイスがサポートしているプレビューサイズのリストを取得します.
 *
 * @param cameraManager カメラマネージャ
 * @param cameraId カメラID
 * @return サポートしているプレビューサイズのリスト
 */
@NonNull
static List<Size> getSupportedPreviewSizes(final CameraManager cameraManager, final String cameraId) {
    List<Size> previewSizes = new ArrayList<>();
    try {
        CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
        StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if (map != null) {
            previewSizes = Arrays.asList(map.getOutputSizes(SurfaceTexture.class));
            Collections.sort(previewSizes, SizeComparator);
        }
    } catch (CameraAccessException e) {
        // ignore.
    }
    return previewSizes;
}

源代码19 项目： DeviceConnect-Android 文件： Camera2Helper.java

/**
 * カメラID に対応したカメラデバイスがサポートしている写真サイズのリストを取得します.
 *
 * @param cameraManager カメラマネージャ
 * @param cameraId カメラID
 * @return サポートしている写真サイズのリスト
 */
@NonNull
static List<Size> getSupportedPictureSizes(final CameraManager cameraManager, final String cameraId) {
    List<Size> pictureSizes = new ArrayList<>();
    try {
        CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
        StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if(map != null) {
            pictureSizes = Arrays.asList(map.getOutputSizes(ImageFormat.JPEG));
            Collections.sort(pictureSizes, SizeComparator);
        }
    } catch (CameraAccessException e) {
        // ignore.
    }
    return pictureSizes;
}

源代码20 项目： DeviceConnect-Android 文件： SettingsPreferenceActivity.java

/**
 * カメラID に対応したカメラデバイスがサポートしているプレビューサイズのリストを取得します.
 *
 * @param cameraManager カメラマネージャ
 * @param cameraId カメラID
 * @return サポートしているプレビューサイズのリスト
 */
@NonNull
private static List<Size> getSupportedPreviewSizes(final CameraManager cameraManager, final String cameraId) {
    List<Size> previewSizes = new ArrayList<>();
    try {
        CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
        StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if (map != null) {
            previewSizes = Arrays.asList(map.getOutputSizes(SurfaceTexture.class));
            Collections.sort(previewSizes, SIZE_COMPARATOR);
        }
    } catch (CameraAccessException e) {
        // ignore.
    }
    return previewSizes;
}

源代码21 项目： DeviceConnect-Android 文件： Camera2Helper.java

/**
 * カメラID に対応したカメラデバイスがサポートしているプレビューサイズのリストを取得します.
 *
 * @param cameraManager カメラマネージャ
 * @param cameraId カメラID
 * @return サポートしているプレビューサイズのリスト
 */
@NonNull
static List<Size> getSupportedPreviewSizes(final CameraManager cameraManager, final String cameraId) {
    List<Size> previewSizes = new ArrayList<>();
    try {
        CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
        StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if (map != null) {
            previewSizes = Arrays.asList(map.getOutputSizes(SurfaceTexture.class));
            Collections.sort(previewSizes, SIZE_COMPARATOR);
        }
    } catch (CameraAccessException e) {
        // ignore.
    }
    return previewSizes;
}

源代码22 项目： DeviceConnect-Android 文件： Camera2Helper.java

/**
 * カメラID に対応したカメラデバイスがサポートしている写真サイズのリストを取得します.
 *
 * @param cameraManager カメラマネージャ
 * @param cameraId カメラID
 * @return サポートしている写真サイズのリスト
 */
@NonNull
static List<Size> getSupportedPictureSizes(final CameraManager cameraManager, final String cameraId) {
    List<Size> pictureSizes = new ArrayList<>();
    try {
        CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
        StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if(map != null) {
            pictureSizes = Arrays.asList(map.getOutputSizes(ImageFormat.JPEG));
            Collections.sort(pictureSizes, SIZE_COMPARATOR);
        }
    } catch (CameraAccessException e) {
        // ignore.
    }
    return pictureSizes;
}

源代码23 项目： webrtc_android 文件： Camera2Enumerator.java

static List<Size> getSupportedSizes(CameraCharacteristics cameraCharacteristics) {
  final StreamConfigurationMap streamMap =
      cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
  final int supportLevel =
      cameraCharacteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);

  final android.util.Size[] nativeSizes = streamMap.getOutputSizes(SurfaceTexture.class);
  final List<Size> sizes = convertSizes(nativeSizes);

  // Video may be stretched pre LMR1 on legacy implementations.
  // Filter out formats that have different aspect ratio than the sensor array.
  if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP_MR1
      && supportLevel == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
    final Rect activeArraySize =
        cameraCharacteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);
    final ArrayList<Size> filteredSizes = new ArrayList<Size>();

    for (Size size : sizes) {
      if (activeArraySize.width() * size.height == activeArraySize.height() * size.width) {
        filteredSizes.add(size);
      }
    }

    return filteredSizes;
  } else {
    return sizes;
  }
}

源代码24 项目： android_9.0.0_r45 文件： MarshalQueryableReprocessFormatsMap.java

@Override
public void marshal(ReprocessFormatsMap value, ByteBuffer buffer) {
    /*
     * // writing (static example, DNG+ZSL)
     * int32_t[] contents = {
     *   RAW_OPAQUE, 3, RAW16, YUV_420_888, BLOB,
     *   RAW16, 2, YUV_420_888, BLOB,
     *   ...,
     *   INPUT_FORMAT, OUTPUT_FORMAT_COUNT, [OUTPUT_0, OUTPUT_1, ..., OUTPUT_FORMAT_COUNT-1]
     * };
     */
    int[] inputs = StreamConfigurationMap.imageFormatToInternal(value.getInputs());
    for (int input : inputs) {
        // INPUT_FORMAT
        buffer.putInt(input);

        int[] outputs =
                StreamConfigurationMap.imageFormatToInternal(value.getOutputs(input));
        // OUTPUT_FORMAT_COUNT
        buffer.putInt(outputs.length);

        // [OUTPUT_0, OUTPUT_1, ..., OUTPUT_FORMAT_COUNT-1]
        for (int output : outputs) {
            buffer.putInt(output);
        }
    }
}

源代码25 项目： android_9.0.0_r45 文件： CameraMetadataNative.java

private StreamConfigurationMap getStreamConfigurationMap() {
    StreamConfiguration[] configurations = getBase(
            CameraCharacteristics.SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
    StreamConfigurationDuration[] minFrameDurations = getBase(
            CameraCharacteristics.SCALER_AVAILABLE_MIN_FRAME_DURATIONS);
    StreamConfigurationDuration[] stallDurations = getBase(
            CameraCharacteristics.SCALER_AVAILABLE_STALL_DURATIONS);
    StreamConfiguration[] depthConfigurations = getBase(
            CameraCharacteristics.DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS);
    StreamConfigurationDuration[] depthMinFrameDurations = getBase(
            CameraCharacteristics.DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS);
    StreamConfigurationDuration[] depthStallDurations = getBase(
            CameraCharacteristics.DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS);
    HighSpeedVideoConfiguration[] highSpeedVideoConfigurations = getBase(
            CameraCharacteristics.CONTROL_AVAILABLE_HIGH_SPEED_VIDEO_CONFIGURATIONS);
    ReprocessFormatsMap inputOutputFormatsMap = getBase(
            CameraCharacteristics.SCALER_AVAILABLE_INPUT_OUTPUT_FORMATS_MAP);
    int[] capabilities = getBase(CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES);
    boolean listHighResolution = false;
    for (int capability : capabilities) {
        if (capability == CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE) {
            listHighResolution = true;
            break;
        }
    }
    return new StreamConfigurationMap(
            configurations, minFrameDurations, stallDurations,
            depthConfigurations, depthMinFrameDurations, depthStallDurations,
            highSpeedVideoConfigurations, inputOutputFormatsMap,
            listHighResolution);
}

源代码26 项目： android_9.0.0_r45 文件： CameraDeviceImpl.java

private void checkInputConfiguration(InputConfiguration inputConfig) {
    if (inputConfig != null) {
        StreamConfigurationMap configMap = mCharacteristics.get(
                CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);

        int[] inputFormats = configMap.getInputFormats();
        boolean validFormat = false;
        for (int format : inputFormats) {
            if (format == inputConfig.getFormat()) {
                validFormat = true;
            }
        }

        if (validFormat == false) {
            throw new IllegalArgumentException("input format " + inputConfig.getFormat() +
                    " is not valid");
        }

        boolean validSize = false;
        Size[] inputSizes = configMap.getInputSizes(inputConfig.getFormat());
        for (Size s : inputSizes) {
            if (inputConfig.getWidth() == s.getWidth() &&
                    inputConfig.getHeight() == s.getHeight()) {
                validSize = true;
            }
        }

        if (validSize == false) {
            throw new IllegalArgumentException("input size " + inputConfig.getWidth() + "x" +
                    inputConfig.getHeight() + " is not valid");
        }
    }
}

源代码27 项目： next18-ai-in-motion 文件： CameraActivity.java

private String chooseCamera() {
    final CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
    try {
        for (final String cameraId : manager.getCameraIdList()) {
            final CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);

            // We don't use a front facing camera in this sample.
            final Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
            if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) {
                continue;
            }

            final StreamConfigurationMap map =
                    characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);

            if (map == null) {
                continue;
            }

            // Fallback to camera1 API for internal cameras that don't have full support.
            // This should help with legacy situations where using the camera2 API causes
            // distorted or otherwise broken previews.
            useCamera2API = (facing == CameraCharacteristics.LENS_FACING_EXTERNAL)
                    || isHardwareLevelSupported(characteristics,
                    CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_FULL);
            return cameraId;
        }
    } catch (CameraAccessException e) {
        Log.e("CameraAccessException", "Not allowed to access camera" + e.toString());
    }

    return null;
}

源代码28 项目： TikTok 文件： Camera2.java

/**
 * <p>Collects some information from {@link #mCameraCharacteristics}.</p>
 * <p>This rewrites {@link #mPreviewSizes}, {@link #mPictureSizes}, and optionally,
 * {@link #mAspectRatio}.</p>
 */
private void collectCameraInfo() {
    StreamConfigurationMap map = mCameraCharacteristics.get(
            CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    if (map == null) {
        throw new IllegalStateException("Failed to get configuration map: " + mCameraId);
    }
    mPreviewSizes.clear();
    for (android.util.Size size : map.getOutputSizes(mPreview.getOutputClass())) {
        int width = size.getWidth();
        int height = size.getHeight();
        if (width <= MAX_PREVIEW_WIDTH && height <= MAX_PREVIEW_HEIGHT) {
            mPreviewSizes.add(new Size(width, height));
        }
    }
    mPictureSizes.clear();
    collectPictureSizes(mPictureSizes, map);
    for (AspectRatio ratio : mPreviewSizes.ratios()) {
        if (!mPictureSizes.ratios().contains(ratio)) {
            mPreviewSizes.remove(ratio);
        }
    }

    if (!mPreviewSizes.ratios().contains(mAspectRatio)) {
        mAspectRatio = mPreviewSizes.ratios().iterator().next();
    }
}

源代码29 项目： TikTok 文件： Camera2Api23.java

@Override
protected void collectPictureSizes(SizeMap sizes, StreamConfigurationMap map) {
    // Try to get hi-res output sizes
    android.util.Size[] outputSizes = map.getHighResolutionOutputSizes(ImageFormat.JPEG);
    if (outputSizes != null) {
        for (android.util.Size size : map.getHighResolutionOutputSizes(ImageFormat.JPEG)) {
            sizes.add(new Size(size.getWidth(), size.getHeight()));
        }
    }
    if (sizes.isEmpty()) {
        super.collectPictureSizes(sizes, map);
    }
}

源代码30 项目： dbclf 文件： CameraConnectionFragment.java

/**
 * Sets up member variables related to camera.
 */
private void setUpCameraOutputs() {
    final Activity activity = getActivity();
    final CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
    try {
        final CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);

        final StreamConfigurationMap map =
                characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);

        sensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);

        // Danger, W.R.! Attempting to use too large a preview size could  exceed the camera
        // bus' bandwidth limitation, resulting in gorgeous previews but the storage of
        // garbage capture data.
        previewSize =
                chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class),
                        inputSize.getWidth(),
                        inputSize.getHeight());

        // We fit the aspect ratio of TextureView to the size of preview we picked.
        final int orientation = getResources().getConfiguration().orientation;
        if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
            textureView.setAspectRatio(previewSize.getWidth(), previewSize.getHeight());
        } else {
            textureView.setAspectRatio(previewSize.getHeight(), previewSize.getWidth());
        }
    } catch (final CameraAccessException ignored) {
    } catch (final NullPointerException e) {
        // Currently an NPE is thrown when the Camera2API is used but not supported on the
        // device this code runs.
        throw new RuntimeException(getString(R.string.camera_error));
    }

    cameraConnectionCallback.onPreviewSizeChosen(previewSize, sensorOrientation);
}

类所在包

android.hardware

类方法

getOutputSizes ( )

getOutputFormats ( )

同包方法

android.hardware.Camera

android.hardware.SensorManager

android.hardware.Sensor

android.hardware.SensorEvent

android.hardware.SensorEventListener

android.hardware.camera2.CameraManager