Java Code Examples for android.hardware.camera2.CameraCaptureSession#SESSION_ID_NONE

@Override
public CaptureRequest.Builder createCaptureRequest(int templateType)
        throws CameraAccessException {
    synchronized(mInterfaceLock) {
        checkIfCameraClosedOrInError();

        CameraMetadataNative templatedRequest = null;

        templatedRequest = mRemoteDevice.createDefaultRequest(templateType);

        // If app target SDK is older than O, or it's not a still capture template, enableZsl
        // must be false in the default request.
        if (mAppTargetSdkVersion < Build.VERSION_CODES.O ||
                templateType != TEMPLATE_STILL_CAPTURE) {
            overrideEnableZsl(templatedRequest, false);
        }

        CaptureRequest.Builder builder = new CaptureRequest.Builder(
                templatedRequest, /*reprocess*/false, CameraCaptureSession.SESSION_ID_NONE,
                getId(), /*physicalCameraIdSet*/ null);

        return builder;
    }
}
 

@Override
public CaptureRequest.Builder createCaptureRequest(int templateType,
        Set<String> physicalCameraIdSet)
        throws CameraAccessException {
    synchronized(mInterfaceLock) {
        checkIfCameraClosedOrInError();

        for (String physicalId : physicalCameraIdSet) {
            if (physicalId == getId()) {
                throw new IllegalStateException("Physical id matches the logical id!");
            }
        }

        CameraMetadataNative templatedRequest = null;

        templatedRequest = mRemoteDevice.createDefaultRequest(templateType);

        // If app target SDK is older than O, or it's not a still capture template, enableZsl
        // must be false in the default request.
        if (mAppTargetSdkVersion < Build.VERSION_CODES.O ||
                templateType != TEMPLATE_STILL_CAPTURE) {
            overrideEnableZsl(templatedRequest, false);
        }

        CaptureRequest.Builder builder = new CaptureRequest.Builder(
                templatedRequest, /*reprocess*/false, CameraCaptureSession.SESSION_ID_NONE,
                getId(), physicalCameraIdSet);

        return builder;
    }
}
 

@Override
public List<CaptureRequest> createHighSpeedRequestList(CaptureRequest request)
        throws CameraAccessException {
    if (request == null) {
        throw new IllegalArgumentException("Input capture request must not be null");
    }
    Collection<Surface> outputSurfaces = request.getTargets();
    Range<Integer> fpsRange = request.get(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE);

    StreamConfigurationMap config =
            mCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    SurfaceUtils.checkConstrainedHighSpeedSurfaces(outputSurfaces, fpsRange, config);

    // Request list size: to limit the preview to 30fps, need use maxFps/30; to maximize
    // the preview frame rate, should use maxBatch size for that high speed stream
    // configuration. We choose the former for now.
    int requestListSize = fpsRange.getUpper() / 30;
    List<CaptureRequest> requestList = new ArrayList<CaptureRequest>();

    // Prepare the Request builders: need carry over the request controls.
    // First, create a request builder that will only include preview or recording target.
    CameraMetadataNative requestMetadata = new CameraMetadataNative(request.getNativeCopy());
    // Note that after this step, the requestMetadata is mutated (swapped) and can not be used
    // for next request builder creation.
    CaptureRequest.Builder singleTargetRequestBuilder = new CaptureRequest.Builder(
            requestMetadata, /*reprocess*/false, CameraCaptureSession.SESSION_ID_NONE,
            request.getLogicalCameraId(), /*physicalCameraIdSet*/ null);
    // Carry over userTag, as native metadata doesn't have this field.
    singleTargetRequestBuilder.setTag(request.getTag());

    // Overwrite the capture intent to make sure a good value is set.
    Iterator<Surface> iterator = outputSurfaces.iterator();
    Surface firstSurface = iterator.next();
    Surface secondSurface = null;
    if (outputSurfaces.size() == 1 && SurfaceUtils.isSurfaceForHwVideoEncoder(firstSurface)) {
        singleTargetRequestBuilder.set(CaptureRequest.CONTROL_CAPTURE_INTENT,
                CaptureRequest.CONTROL_CAPTURE_INTENT_PREVIEW);
    } else {
        // Video only, or preview + video
        singleTargetRequestBuilder.set(CaptureRequest.CONTROL_CAPTURE_INTENT,
                CaptureRequest.CONTROL_CAPTURE_INTENT_VIDEO_RECORD);
    }
    singleTargetRequestBuilder.setPartOfCHSRequestList(/*partOfCHSList*/true);

    // Second, Create a request builder that will include both preview and recording targets.
    CaptureRequest.Builder doubleTargetRequestBuilder = null;
    if (outputSurfaces.size() == 2) {
        // Have to create a new copy, the original one was mutated after a new
        // CaptureRequest.Builder creation.
        requestMetadata = new CameraMetadataNative(request.getNativeCopy());
        doubleTargetRequestBuilder = new CaptureRequest.Builder(
                requestMetadata, /*reprocess*/false, CameraCaptureSession.SESSION_ID_NONE,
                request.getLogicalCameraId(), /*physicalCameraIdSet*/null);
        doubleTargetRequestBuilder.setTag(request.getTag());
        doubleTargetRequestBuilder.set(CaptureRequest.CONTROL_CAPTURE_INTENT,
                CaptureRequest.CONTROL_CAPTURE_INTENT_VIDEO_RECORD);
        doubleTargetRequestBuilder.addTarget(firstSurface);
        secondSurface = iterator.next();
        doubleTargetRequestBuilder.addTarget(secondSurface);
        doubleTargetRequestBuilder.setPartOfCHSRequestList(/*partOfCHSList*/true);
        // Make sure singleTargetRequestBuilder contains only recording surface for
        // preview + recording case.
        Surface recordingSurface = firstSurface;
        if (!SurfaceUtils.isSurfaceForHwVideoEncoder(recordingSurface)) {
            recordingSurface = secondSurface;
        }
        singleTargetRequestBuilder.addTarget(recordingSurface);
    } else {
        // Single output case: either recording or preview.
        singleTargetRequestBuilder.addTarget(firstSurface);
    }

    // Generate the final request list.
    for (int i = 0; i < requestListSize; i++) {
        if (i == 0 && doubleTargetRequestBuilder != null) {
            // First request should be recording + preview request
            requestList.add(doubleTargetRequestBuilder.build());
        } else {
            requestList.add(singleTargetRequestBuilder.build());
        }
    }

    return Collections.unmodifiableList(requestList);
}