public int doZoom(float scale) {
synchronized (mCameraLock) {
if (mCamera == null) {
return 0;
}
int currentZoom = 0;
int maxZoom;
Camera.Parameters parameters = mCamera.getParameters();
if (!parameters.isZoomSupported()) {
Log.w(TAG, mContext.getString(R.string.zoom_not_supported));
return currentZoom;
}
maxZoom = parameters.getMaxZoom();
currentZoom = parameters.getZoom() + 1;
float newZoom;
if (scale > 1) {
newZoom = currentZoom + scale * (maxZoom / 10);
} else {
newZoom = currentZoom * scale;
}
currentZoom = Math.round(newZoom) - 1;
if (currentZoom < 0) {
currentZoom = 0;
} else if (currentZoom > maxZoom) {
currentZoom = maxZoom;
}
parameters.setZoom(currentZoom);
mCamera.setParameters(parameters);
return currentZoom;
}
}
protected void enableZoomControls(Camera.Parameters params) {
final SharedPreferences settings = getContext().getSharedPreferences("ZoomCtl", 0);
// set zoom level to previously set level if available, otherwise maxZoom
final int maxZoom = params.getMaxZoom();
int currentZoom = settings.getInt("ZoomLvl", maxZoom);
params.setZoom(currentZoom);
if (_zoomControl == null) return;
_zoomControl.setMax(maxZoom);
_zoomControl.setProgress(currentZoom);
_zoomControl.setOnSeekBarChangeListener(
new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
Camera.Parameters params = mCamera.getParameters();
params.setZoom(progress);
mCamera.setParameters(params);
if (settings != null) {
SharedPreferences.Editor editor = settings.edit();
editor.putInt("ZoomLvl", progress);
editor.apply();
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {}
});
}
public void zoom(int step) {
Camera.Parameters parameters = mCamera.getParameters();
if (!parameters.isZoomSupported()) return;
int zoom = parameters.getZoom() + step;
if (zoom > parameters.getMaxZoom()) zoom = parameters.getMaxZoom();
else if (zoom < 0) zoom = 0;
parameters.setZoom(zoom);
String str = parameters.getZoomRatios().get(zoom) + "%";
zoomText.setText(str);
mCamera.setParameters(parameters);
}
/*
* 缩放
*
* @param scale
*/
public void setCameraZoom(int scale) {
if (camera != null
&& camera.getParameters().isZoomSupported()
&& scale <= camera.getParameters().getMaxZoom()
&& scale >= 0) {
Camera.Parameters parameters = camera.getParameters();
parameters.setZoom(scale);
camera.setParameters(parameters);
}
}
/** 焦点放大 */
public void zoomIn() {
if (camera != null && camera.getParameters().isZoomSupported()) {
Camera.Parameters parameters = camera.getParameters();
if (parameters.getZoom() >= parameters.getMaxZoom()) {
return;
}
parameters.setZoom(parameters.getZoom() + 1);
camera.setParameters(parameters);
}
}
/** 焦点放小 */
public void zoomOut() {
if (camera != null && camera.getParameters().isZoomSupported()) {
Camera.Parameters parameters = camera.getParameters();
if (parameters.getZoom() <= 0) {
return;
}
parameters.setZoom(parameters.getZoom() - 1);
camera.setParameters(parameters);
}
}
private void initCameraParameters() {
Camera.Parameters parameters = mCamera.getParameters();
String mod = Build.MODEL;
if (Build.VERSION.SDK_INT >= 8) {
// MZ 180， other 90...
if ("M9".equalsIgnoreCase(mod) || "MX".equalsIgnoreCase(mod)) {
setDisplayOrientation(mCamera, 180);
} else {
setDisplayOrientation(mCamera, 90);
}
} else {
parameters.set("orientation", "portrait");
parameters.set("rotation", 90);
}
if (cameraCurrentlyLocked == CameraInfo.CAMERA_FACING_FRONT) {
ismCameraCanFlash = false;
} else {
ismCameraCanFlash = true;
}
if (!ismCameraCanFlash) {
mBtnFlash1.setVisibility(View.INVISIBLE);
mBtnFlash2.setVisibility(View.INVISIBLE);
mBtnFlash3.setVisibility(View.INVISIBLE);
} else {
mBtnFlash1.setVisibility(View.VISIBLE);
}
List<String> focusModes = parameters.getSupportedFocusModes();
if (focusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
// Autofocus mode is supported
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
}
if (parameters.isZoomSupported()) {
parameters.setZoom(parameters.getZoom()); // 测试通过
}
Camera.Size previewSize = getFitParametersSize(parameters.getSupportedPreviewSizes());
parameters.setPreviewSize(previewSize.width, previewSize.height);
Camera.Size pictureSize = getFitParametersSize(parameters.getSupportedPictureSizes());
parameters.setPictureSize(pictureSize.width, pictureSize.height);
try {
mCamera.setParameters(parameters);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void setZoom(Camera.Parameters parameters, double targetZoomRatio) {
if (parameters.isZoomSupported()) {
Integer zoom = indexOfClosestZoom(parameters, targetZoomRatio);
if (zoom == null) {
return;
}
if (parameters.getZoom() == zoom) {
Log.i(TAG, "Zoom is already set to " + zoom);
} else {
Log.i(TAG, "Setting zoom to " + zoom);
parameters.setZoom(zoom);
}
} else {
Log.i(TAG, "Zoom is not supported");
}
}
public void zoomin(float m) {
if (params.isZoomSupported()) {
maxZoomLevel = params.getMaxZoom();
float zoom = (float) currentZoomLevel;
zoom += (m / 100f);
currentZoomLevel = (int) zoom;
if (currentZoomLevel > maxZoomLevel) currentZoomLevel = maxZoomLevel;
if (currentZoomLevel < 1) currentZoomLevel = 1;
params.setZoom(currentZoomLevel);
mCamera.setParameters(params);
}
}
private void setZoom(int index) {
parameters.setZoom(index);
camera.setParameters(parameters);
setZoomRatioText(index);
}
/**
* Set the legacy parameters using the {@link LegacyRequest legacy request}.
*
* <p>The legacy request's parameters are changed as a side effect of calling this method.
*
* @param legacyRequest a non-{@code null} legacy request
*/
public static void convertRequestMetadata(LegacyRequest legacyRequest) {
CameraCharacteristics characteristics = legacyRequest.characteristics;
CaptureRequest request = legacyRequest.captureRequest;
Size previewSize = legacyRequest.previewSize;
Camera.Parameters params = legacyRequest.parameters;
Rect activeArray = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);
/*
* scaler.cropRegion
*/
ParameterUtils.ZoomData zoomData;
{
zoomData =
ParameterUtils.convertScalerCropRegion(
activeArray, request.get(SCALER_CROP_REGION), previewSize, params);
if (params.isZoomSupported()) {
params.setZoom(zoomData.zoomIndex);
} else if (VERBOSE) {
Log.v(TAG, "convertRequestToMetadata - zoom is not supported");
}
}
/*
* colorCorrection.*
*/
// colorCorrection.aberrationMode
{
int aberrationMode =
ParamsUtils.getOrDefault(
request,
COLOR_CORRECTION_ABERRATION_MODE,
/*defaultValue*/ COLOR_CORRECTION_ABERRATION_MODE_FAST);
if (aberrationMode != COLOR_CORRECTION_ABERRATION_MODE_FAST) {
Log.w(
TAG,
"convertRequestToMetadata - Ignoring unsupported "
+ "colorCorrection.aberrationMode = "
+ aberrationMode);
}
}
/*
* control.ae*
*/
// control.aeAntibandingMode
{
String legacyMode;
Integer antiBandingMode = request.get(CONTROL_AE_ANTIBANDING_MODE);
if (antiBandingMode != null) {
legacyMode = convertAeAntiBandingModeToLegacy(antiBandingMode);
} else {
legacyMode =
ListUtils.listSelectFirstFrom(
params.getSupportedAntibanding(),
new String[] {
Parameters.ANTIBANDING_AUTO,
Parameters.ANTIBANDING_OFF,
Parameters.ANTIBANDING_50HZ,
Parameters.ANTIBANDING_60HZ,
});
}
if (legacyMode != null) {
params.setAntibanding(legacyMode);
}
}
/*
* control.aeRegions, afRegions
*/
{
// aeRegions
{
// Use aeRegions if available, fall back to using awbRegions if present
MeteringRectangle[] aeRegions = request.get(CONTROL_AE_REGIONS);
if (request.get(CONTROL_AWB_REGIONS) != null) {
Log.w(
TAG,
"convertRequestMetadata - control.awbRegions setting is not "
+ "supported, ignoring value");
}
int maxNumMeteringAreas = params.getMaxNumMeteringAreas();
List<Camera.Area> meteringAreaList =
convertMeteringRegionsToLegacy(
activeArray, zoomData, aeRegions, maxNumMeteringAreas, /*regionName*/ "AE");
// WAR: for b/17252693, some devices can't handle params.setFocusAreas(null).
if (maxNumMeteringAreas > 0) {
params.setMeteringAreas(meteringAreaList);
}
}
// afRegions
{
MeteringRectangle[] afRegions = request.get(CONTROL_AF_REGIONS);
int maxNumFocusAreas = params.getMaxNumFocusAreas();
List<Camera.Area> focusAreaList =
convertMeteringRegionsToLegacy(
activeArray, zoomData, afRegions, maxNumFocusAreas, /*regionName*/ "AF");
// WAR: for b/17252693, some devices can't handle params.setFocusAreas(null).
if (maxNumFocusAreas > 0) {
params.setFocusAreas(focusAreaList);
}
}
}
// control.aeTargetFpsRange
Range<Integer> aeFpsRange = request.get(CONTROL_AE_TARGET_FPS_RANGE);
if (aeFpsRange != null) {
int[] legacyFps = convertAeFpsRangeToLegacy(aeFpsRange);
// TODO - Should we enforce that all HAL1 devices must include (30, 30) FPS range?
boolean supported = false;
for (int[] range : params.getSupportedPreviewFpsRange()) {
if (legacyFps[0] == range[0] && legacyFps[1] == range[1]) {
supported = true;
break;
}
}
if (supported) {
params.setPreviewFpsRange(
legacyFps[Camera.Parameters.PREVIEW_FPS_MIN_INDEX],
legacyFps[Camera.Parameters.PREVIEW_FPS_MAX_INDEX]);
} else {
Log.w(TAG, "Unsupported FPS range set [" + legacyFps[0] + "," + legacyFps[1] + "]");
}
}
/*
* control
*/
// control.aeExposureCompensation
{
Range<Integer> compensationRange =
characteristics.get(CameraCharacteristics.CONTROL_AE_COMPENSATION_RANGE);
int compensation =
ParamsUtils.getOrDefault(request, CONTROL_AE_EXPOSURE_COMPENSATION, /*defaultValue*/ 0);
if (!compensationRange.contains(compensation)) {
Log.w(
TAG,
"convertRequestMetadata - control.aeExposureCompensation "
+ "is out of range, ignoring value");
compensation = 0;
}
params.setExposureCompensation(compensation);
}
// control.aeLock
{
Boolean aeLock =
getIfSupported(
request,
CONTROL_AE_LOCK, /*defaultValue*/
false,
params.isAutoExposureLockSupported(),
/*allowedValue*/ false);
if (aeLock != null) {
params.setAutoExposureLock(aeLock);
}
if (VERBOSE) {
Log.v(TAG, "convertRequestToMetadata - control.aeLock set to " + aeLock);
}
// TODO: Don't add control.aeLock to availableRequestKeys if it's not supported
}
// control.aeMode, flash.mode
mapAeAndFlashMode(request, /*out*/ params);
// control.afMode
{
int afMode =
ParamsUtils.getOrDefault(request, CONTROL_AF_MODE, /*defaultValue*/ CONTROL_AF_MODE_OFF);
String focusMode =
LegacyMetadataMapper.convertAfModeToLegacy(afMode, params.getSupportedFocusModes());
if (focusMode != null) {
params.setFocusMode(focusMode);
}
if (VERBOSE) {
Log.v(
TAG, "convertRequestToMetadata - control.afMode " + afMode + " mapped to " + focusMode);
}
}
// control.awbMode
{
Integer awbMode =
getIfSupported(
request,
CONTROL_AWB_MODE,
/*defaultValue*/ CONTROL_AWB_MODE_AUTO,
params.getSupportedWhiteBalance() != null,
/*allowedValue*/ CONTROL_AWB_MODE_AUTO);
String whiteBalanceMode = null;
if (awbMode != null) { // null iff AWB is not supported by camera1 api
whiteBalanceMode = convertAwbModeToLegacy(awbMode);
params.setWhiteBalance(whiteBalanceMode);
}
if (VERBOSE) {
Log.v(
TAG,
"convertRequestToMetadata - control.awbMode "
+ awbMode
+ " mapped to "
+ whiteBalanceMode);
}
}
// control.awbLock
{
Boolean awbLock =
getIfSupported(
request,
CONTROL_AWB_LOCK, /*defaultValue*/
false,
params.isAutoWhiteBalanceLockSupported(),
/*allowedValue*/ false);
if (awbLock != null) {
params.setAutoWhiteBalanceLock(awbLock);
}
// TODO: Don't add control.awbLock to availableRequestKeys if it's not supported
}
// control.captureIntent
{
int captureIntent =
ParamsUtils.getOrDefault(
request, CONTROL_CAPTURE_INTENT, /*defaultValue*/ CONTROL_CAPTURE_INTENT_PREVIEW);
captureIntent = filterSupportedCaptureIntent(captureIntent);
params.setRecordingHint(
captureIntent == CONTROL_CAPTURE_INTENT_VIDEO_RECORD
|| captureIntent == CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT);
}
// control.videoStabilizationMode
{
Integer stabMode =
getIfSupported(
request,
CONTROL_VIDEO_STABILIZATION_MODE,
/*defaultValue*/ CONTROL_VIDEO_STABILIZATION_MODE_OFF,
params.isVideoStabilizationSupported(),
/*allowedValue*/ CONTROL_VIDEO_STABILIZATION_MODE_OFF);
if (stabMode != null) {
params.setVideoStabilization(stabMode == CONTROL_VIDEO_STABILIZATION_MODE_ON);
}
}
// lens.focusDistance
{
boolean infinityFocusSupported =
ListUtils.listContains(params.getSupportedFocusModes(), Parameters.FOCUS_MODE_INFINITY);
Float focusDistance =
getIfSupported(
request,
LENS_FOCUS_DISTANCE,
/*defaultValue*/ 0f,
infinityFocusSupported, /*allowedValue*/
0f);
if (focusDistance == null || focusDistance != 0f) {
Log.w(
TAG,
"convertRequestToMetadata - Ignoring android.lens.focusDistance "
+ infinityFocusSupported
+ ", only 0.0f is supported");
}
}
// control.sceneMode, control.mode
{
// TODO: Map FACE_PRIORITY scene mode to face detection.
if (params.getSupportedSceneModes() != null) {
int controlMode =
ParamsUtils.getOrDefault(request, CONTROL_MODE, /*defaultValue*/ CONTROL_MODE_AUTO);
String modeToSet;
switch (controlMode) {
case CONTROL_MODE_USE_SCENE_MODE:
{
int sceneMode =
ParamsUtils.getOrDefault(
request, CONTROL_SCENE_MODE, /*defaultValue*/ CONTROL_SCENE_MODE_DISABLED);
String legacySceneMode = LegacyMetadataMapper.convertSceneModeToLegacy(sceneMode);
if (legacySceneMode != null) {
modeToSet = legacySceneMode;
} else {
modeToSet = Parameters.SCENE_MODE_AUTO;
Log.w(TAG, "Skipping unknown requested scene mode: " + sceneMode);
}
break;
}
case CONTROL_MODE_AUTO:
{
modeToSet = Parameters.SCENE_MODE_AUTO;
break;
}
default:
{
Log.w(TAG, "Control mode " + controlMode + " is unsupported, defaulting to AUTO");
modeToSet = Parameters.SCENE_MODE_AUTO;
}
}
params.setSceneMode(modeToSet);
}
}
// control.effectMode
{
if (params.getSupportedColorEffects() != null) {
int effectMode =
ParamsUtils.getOrDefault(
request, CONTROL_EFFECT_MODE, /*defaultValue*/ CONTROL_EFFECT_MODE_OFF);
String legacyEffectMode = LegacyMetadataMapper.convertEffectModeToLegacy(effectMode);
if (legacyEffectMode != null) {
params.setColorEffect(legacyEffectMode);
} else {
params.setColorEffect(Parameters.EFFECT_NONE);
Log.w(TAG, "Skipping unknown requested effect mode: " + effectMode);
}
}
}
/*
* sensor
*/
// sensor.testPattern
{
int testPatternMode =
ParamsUtils.getOrDefault(
request, SENSOR_TEST_PATTERN_MODE, /*defaultValue*/ SENSOR_TEST_PATTERN_MODE_OFF);
if (testPatternMode != SENSOR_TEST_PATTERN_MODE_OFF) {
Log.w(
TAG,
"convertRequestToMetadata - ignoring sensor.testPatternMode "
+ testPatternMode
+ "; only OFF is supported");
}
}
/*
* jpeg.*
*/
// jpeg.gpsLocation
{
Location location = request.get(JPEG_GPS_LOCATION);
if (location != null) {
if (checkForCompleteGpsData(location)) {
params.setGpsAltitude(location.getAltitude());
params.setGpsLatitude(location.getLatitude());
params.setGpsLongitude(location.getLongitude());
params.setGpsProcessingMethod(location.getProvider().toUpperCase());
params.setGpsTimestamp(location.getTime());
} else {
Log.w(TAG, "Incomplete GPS parameters provided in location " + location);
}
} else {
params.removeGpsData();
}
}
// jpeg.orientation
{
Integer orientation = request.get(CaptureRequest.JPEG_ORIENTATION);
params.setRotation(
ParamsUtils.getOrDefault(
request, JPEG_ORIENTATION, (orientation == null) ? 0 : orientation));
}
// jpeg.quality
{
params.setJpegQuality(
0xFF & ParamsUtils.getOrDefault(request, JPEG_QUALITY, DEFAULT_JPEG_QUALITY));
}
// jpeg.thumbnailQuality
{
params.setJpegThumbnailQuality(
0xFF & ParamsUtils.getOrDefault(request, JPEG_THUMBNAIL_QUALITY, DEFAULT_JPEG_QUALITY));
}
// jpeg.thumbnailSize
{
List<Camera.Size> sizes = params.getSupportedJpegThumbnailSizes();
if (sizes != null && sizes.size() > 0) {
Size s = request.get(JPEG_THUMBNAIL_SIZE);
boolean invalidSize =
(s == null) ? false : !ParameterUtils.containsSize(sizes, s.getWidth(), s.getHeight());
if (invalidSize) {
Log.w(TAG, "Invalid JPEG thumbnail size set " + s + ", skipping thumbnail...");
}
if (s == null || invalidSize) {
// (0,0) = "no thumbnail" in Camera API 1
params.setJpegThumbnailSize(/*width*/ 0, /*height*/ 0);
} else {
params.setJpegThumbnailSize(s.getWidth(), s.getHeight());
}
}
}
/*
* noiseReduction.*
*/
// noiseReduction.mode
{
int mode =
ParamsUtils.getOrDefault(
request, NOISE_REDUCTION_MODE, /*defaultValue*/ NOISE_REDUCTION_MODE_FAST);
if (mode != NOISE_REDUCTION_MODE_FAST) {
Log.w(
TAG,
"convertRequestToMetadata - Ignoring unsupported " + "noiseReduction.mode = " + mode);
}
}
}