Examples with StreamConfigurationDuration android.hardware.camera2.params.StreamConfigurationDuration used on opensource projects

Example 6 with StreamConfigurationDuration

use of android.hardware.camera2.params.StreamConfigurationDuration in project android_frameworks_base by DirtyUnicorns.

the class CameraMetadataNative method getStreamConfigurationMap.

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);
}

Example 7 with StreamConfigurationDuration

use of android.hardware.camera2.params.StreamConfigurationDuration in project android_frameworks_base by AOSPA.

the class CameraMetadataTest method testReadWriteStreamConfigurationDuration.

@SmallTest
public void testReadWriteStreamConfigurationDuration() {
    // Avoid sign extending ints when converting to a long
    final long MASK_UNSIGNED_INT = 0x00000000ffffffffL;
    // int64 x 4 x n
    checkKeyMarshal("android.scaler.availableMinFrameDurations", new StreamConfigurationDuration[] { new StreamConfigurationDuration(ImageFormat.YUV_420_888, 640, 480, /*duration*/
    123L), new StreamConfigurationDuration(ImageFormat.RGB_565, 320, 240, /*duration*/
    345L) }, toByteArray(ImageFormat.YUV_420_888 & MASK_UNSIGNED_INT, 640L, 480L, /*duration*/
    123L, ImageFormat.RGB_565 & MASK_UNSIGNED_INT, 320L, 240L, /*duration*/
    345L));
}

Example 8 with StreamConfigurationDuration

use of android.hardware.camera2.params.StreamConfigurationDuration in project android_frameworks_base by crdroidandroid.

the class CameraMetadataTest method testOverrideStreamConfigurationMap.

/**
     * Set the raw native value of the available stream configurations; ensure that
     * the read-out managed value is consistent with what we write in.
     */
@SmallTest
public void testOverrideStreamConfigurationMap() {
    /*
         * First, write all the raw values:
         * - availableStreamConfigurations
         * - availableMinFrameDurations
         * - availableStallDurations
         *
         * Then, read this out as a synthetic multi-key 'streamConfigurationMap'
         *
         * Finally, validate that the map was unmarshaled correctly
         * and is converting the internal formats to public formats properly.
         */
    //
    // android.scaler.availableStreamConfigurations (int x n x 4 array)
    //
    final int OUTPUT = 0;
    final int INPUT = 1;
    int[] rawAvailableStreamConfigs = new int[] { // RAW16
    0x20, // RAW16
    3280, // RAW16
    2464, // RAW16
    OUTPUT, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3264, // YCbCr_420_888
    2448, // YCbCr_420_888
    OUTPUT, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3200, // YCbCr_420_888
    2400, // YCbCr_420_888
    OUTPUT, // BLOB
    0x21, // BLOB
    3264, // BLOB
    2448, // BLOB
    OUTPUT, // BLOB
    0x21, // BLOB
    3200, // BLOB
    2400, // BLOB
    OUTPUT, // BLOB
    0x21, // BLOB
    2592, // BLOB
    1944, // BLOB
    OUTPUT, // BLOB
    0x21, // BLOB
    2048, // BLOB
    1536, // BLOB
    OUTPUT, // BLOB
    0x21, // BLOB
    1920, // BLOB
    1080, // BLOB
    OUTPUT, // IMPLEMENTATION_DEFINED
    0x22, // IMPLEMENTATION_DEFINED
    640, // IMPLEMENTATION_DEFINED
    480, // IMPLEMENTATION_DEFINED
    OUTPUT, // RAW16
    0x20, // RAW16
    320, // RAW16
    240, // RAW16
    INPUT };
    Key<StreamConfiguration[]> configKey = CameraCharacteristics.SCALER_AVAILABLE_STREAM_CONFIGURATIONS.getNativeKey();
    mMetadata.writeValues(configKey.getTag(), toByteArray(rawAvailableStreamConfigs));
    //
    // android.scaler.availableMinFrameDurations (int x n x 4 array)
    //
    long[] expectedAvailableMinDurations = new long[] { // RAW16
    0x20, // RAW16
    3280, // RAW16
    2464, // RAW16
    33333331, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3264, // YCbCr_420_888
    2448, // YCbCr_420_888
    33333332, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3200, // YCbCr_420_888
    2400, // YCbCr_420_888
    33333333, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    3264, // ImageFormat.JPEG
    2448, // ImageFormat.JPEG
    33333334, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    3200, // ImageFormat.JPEG
    2400, // ImageFormat.JPEG
    33333335, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    2592, // ImageFormat.JPEG
    1944, // ImageFormat.JPEG
    33333336, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    2048, // ImageFormat.JPEG
    1536, // ImageFormat.JPEG
    33333337, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    1920, // ImageFormat.JPEG
    1080, // ImageFormat.JPEG
    33333338 };
    long[] rawAvailableMinDurations = new long[] { // RAW16
    0x20, // RAW16
    3280, // RAW16
    2464, // RAW16
    33333331, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3264, // YCbCr_420_888
    2448, // YCbCr_420_888
    33333332, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3200, // YCbCr_420_888
    2400, // YCbCr_420_888
    33333333, // BLOB
    0x21, // BLOB
    3264, // BLOB
    2448, // BLOB
    33333334, // BLOB
    0x21, // BLOB
    3200, // BLOB
    2400, // BLOB
    33333335, // BLOB
    0x21, // BLOB
    2592, // BLOB
    1944, // BLOB
    33333336, // BLOB
    0x21, // BLOB
    2048, // BLOB
    1536, // BLOB
    33333337, // BLOB
    0x21, // BLOB
    1920, // BLOB
    1080, // BLOB
    33333338 };
    Key<StreamConfigurationDuration[]> durationKey = CameraCharacteristics.SCALER_AVAILABLE_MIN_FRAME_DURATIONS.getNativeKey();
    mMetadata.writeValues(durationKey.getTag(), toByteArray(rawAvailableMinDurations));
    //
    // android.scaler.availableStallDurations (int x n x 4 array)
    //
    long[] expectedAvailableStallDurations = new long[] { // RAW16
    0x20, // RAW16
    3280, // RAW16
    2464, // RAW16
    0, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3264, // YCbCr_420_888
    2448, // YCbCr_420_888
    0, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3200, // YCbCr_420_888
    2400, // YCbCr_420_888
    0, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    3264, // ImageFormat.JPEG
    2448, // ImageFormat.JPEG
    33333334, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    3200, // ImageFormat.JPEG
    2400, // ImageFormat.JPEG
    33333335, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    2592, // ImageFormat.JPEG
    1944, // ImageFormat.JPEG
    33333336, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    2048, // ImageFormat.JPEG
    1536, // ImageFormat.JPEG
    33333337, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    1920, // ImageFormat.JPEG
    1080, // ImageFormat.JPEG
    33333338 };
    // Note: RAW16 and YUV_420_888 omitted intentionally; omitted values should default to 0
    long[] rawAvailableStallDurations = new long[] { // BLOB
    0x21, // BLOB
    3264, // BLOB
    2448, // BLOB
    33333334, // BLOB
    0x21, // BLOB
    3200, // BLOB
    2400, // BLOB
    33333335, // BLOB
    0x21, // BLOB
    2592, // BLOB
    1944, // BLOB
    33333336, // BLOB
    0x21, // BLOB
    2048, // BLOB
    1536, // BLOB
    33333337, // BLOB
    0x21, // BLOB
    1920, // BLOB
    1080, // BLOB
    33333338 };
    Key<StreamConfigurationDuration[]> stallDurationKey = CameraCharacteristics.SCALER_AVAILABLE_STALL_DURATIONS.getNativeKey();
    mMetadata.writeValues(stallDurationKey.getTag(), toByteArray(rawAvailableStallDurations));
    //
    // android.scaler.streamConfigurationMap (synthetic as StreamConfigurationMap)
    //
    StreamConfigurationMap streamConfigMap = mMetadata.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    // Inputs
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.RAW_SENSOR, 320, 240, /*output*/
    false);
    // Outputs
    checkStreamConfigurationMapByFormatSize(streamConfigMap, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, 640, 480, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.JPEG, 1920, 1080, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.JPEG, 2048, 1536, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.JPEG, 2592, 1944, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.JPEG, 3200, 2400, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.YUV_420_888, 3200, 2400, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.YUV_420_888, 3264, 2448, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.RAW_SENSOR, 3280, 2464, /*output*/
    true);
    // Min Frame Durations
    final int DURATION_TUPLE_SIZE = 4;
    for (int i = 0; i < expectedAvailableMinDurations.length; i += DURATION_TUPLE_SIZE) {
        checkStreamConfigurationMapDurationByFormatSize(streamConfigMap, (int) expectedAvailableMinDurations[i], (int) expectedAvailableMinDurations[i + 1], (int) expectedAvailableMinDurations[i + 2], Duration.MinFrame, expectedAvailableMinDurations[i + 3]);
    }
    for (int i = 0; i < expectedAvailableStallDurations.length; i += DURATION_TUPLE_SIZE) {
        checkStreamConfigurationMapDurationByFormatSize(streamConfigMap, (int) expectedAvailableStallDurations[i], (int) expectedAvailableStallDurations[i + 1], (int) expectedAvailableStallDurations[i + 2], Duration.Stall, expectedAvailableStallDurations[i + 3]);
    }
}

Example 9 with StreamConfigurationDuration

use of android.hardware.camera2.params.StreamConfigurationDuration in project android_frameworks_base by DirtyUnicorns.

the class CameraMetadataTest method testOverrideStreamConfigurationMap.

/**
     * Set the raw native value of the available stream configurations; ensure that
     * the read-out managed value is consistent with what we write in.
     */
@SmallTest
public void testOverrideStreamConfigurationMap() {
    /*
         * First, write all the raw values:
         * - availableStreamConfigurations
         * - availableMinFrameDurations
         * - availableStallDurations
         *
         * Then, read this out as a synthetic multi-key 'streamConfigurationMap'
         *
         * Finally, validate that the map was unmarshaled correctly
         * and is converting the internal formats to public formats properly.
         */
    //
    // android.scaler.availableStreamConfigurations (int x n x 4 array)
    //
    final int OUTPUT = 0;
    final int INPUT = 1;
    int[] rawAvailableStreamConfigs = new int[] { // RAW16
    0x20, // RAW16
    3280, // RAW16
    2464, // RAW16
    OUTPUT, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3264, // YCbCr_420_888
    2448, // YCbCr_420_888
    OUTPUT, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3200, // YCbCr_420_888
    2400, // YCbCr_420_888
    OUTPUT, // BLOB
    0x21, // BLOB
    3264, // BLOB
    2448, // BLOB
    OUTPUT, // BLOB
    0x21, // BLOB
    3200, // BLOB
    2400, // BLOB
    OUTPUT, // BLOB
    0x21, // BLOB
    2592, // BLOB
    1944, // BLOB
    OUTPUT, // BLOB
    0x21, // BLOB
    2048, // BLOB
    1536, // BLOB
    OUTPUT, // BLOB
    0x21, // BLOB
    1920, // BLOB
    1080, // BLOB
    OUTPUT, // IMPLEMENTATION_DEFINED
    0x22, // IMPLEMENTATION_DEFINED
    640, // IMPLEMENTATION_DEFINED
    480, // IMPLEMENTATION_DEFINED
    OUTPUT, // RAW16
    0x20, // RAW16
    320, // RAW16
    240, // RAW16
    INPUT };
    Key<StreamConfiguration[]> configKey = CameraCharacteristics.SCALER_AVAILABLE_STREAM_CONFIGURATIONS.getNativeKey();
    mMetadata.writeValues(configKey.getTag(), toByteArray(rawAvailableStreamConfigs));
    //
    // android.scaler.availableMinFrameDurations (int x n x 4 array)
    //
    long[] expectedAvailableMinDurations = new long[] { // RAW16
    0x20, // RAW16
    3280, // RAW16
    2464, // RAW16
    33333331, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3264, // YCbCr_420_888
    2448, // YCbCr_420_888
    33333332, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3200, // YCbCr_420_888
    2400, // YCbCr_420_888
    33333333, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    3264, // ImageFormat.JPEG
    2448, // ImageFormat.JPEG
    33333334, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    3200, // ImageFormat.JPEG
    2400, // ImageFormat.JPEG
    33333335, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    2592, // ImageFormat.JPEG
    1944, // ImageFormat.JPEG
    33333336, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    2048, // ImageFormat.JPEG
    1536, // ImageFormat.JPEG
    33333337, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    1920, // ImageFormat.JPEG
    1080, // ImageFormat.JPEG
    33333338 };
    long[] rawAvailableMinDurations = new long[] { // RAW16
    0x20, // RAW16
    3280, // RAW16
    2464, // RAW16
    33333331, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3264, // YCbCr_420_888
    2448, // YCbCr_420_888
    33333332, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3200, // YCbCr_420_888
    2400, // YCbCr_420_888
    33333333, // BLOB
    0x21, // BLOB
    3264, // BLOB
    2448, // BLOB
    33333334, // BLOB
    0x21, // BLOB
    3200, // BLOB
    2400, // BLOB
    33333335, // BLOB
    0x21, // BLOB
    2592, // BLOB
    1944, // BLOB
    33333336, // BLOB
    0x21, // BLOB
    2048, // BLOB
    1536, // BLOB
    33333337, // BLOB
    0x21, // BLOB
    1920, // BLOB
    1080, // BLOB
    33333338 };
    Key<StreamConfigurationDuration[]> durationKey = CameraCharacteristics.SCALER_AVAILABLE_MIN_FRAME_DURATIONS.getNativeKey();
    mMetadata.writeValues(durationKey.getTag(), toByteArray(rawAvailableMinDurations));
    //
    // android.scaler.availableStallDurations (int x n x 4 array)
    //
    long[] expectedAvailableStallDurations = new long[] { // RAW16
    0x20, // RAW16
    3280, // RAW16
    2464, // RAW16
    0, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3264, // YCbCr_420_888
    2448, // YCbCr_420_888
    0, // YCbCr_420_888
    0x23, // YCbCr_420_888
    3200, // YCbCr_420_888
    2400, // YCbCr_420_888
    0, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    3264, // ImageFormat.JPEG
    2448, // ImageFormat.JPEG
    33333334, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    3200, // ImageFormat.JPEG
    2400, // ImageFormat.JPEG
    33333335, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    2592, // ImageFormat.JPEG
    1944, // ImageFormat.JPEG
    33333336, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    2048, // ImageFormat.JPEG
    1536, // ImageFormat.JPEG
    33333337, // ImageFormat.JPEG
    0x100, // ImageFormat.JPEG
    1920, // ImageFormat.JPEG
    1080, // ImageFormat.JPEG
    33333338 };
    // Note: RAW16 and YUV_420_888 omitted intentionally; omitted values should default to 0
    long[] rawAvailableStallDurations = new long[] { // BLOB
    0x21, // BLOB
    3264, // BLOB
    2448, // BLOB
    33333334, // BLOB
    0x21, // BLOB
    3200, // BLOB
    2400, // BLOB
    33333335, // BLOB
    0x21, // BLOB
    2592, // BLOB
    1944, // BLOB
    33333336, // BLOB
    0x21, // BLOB
    2048, // BLOB
    1536, // BLOB
    33333337, // BLOB
    0x21, // BLOB
    1920, // BLOB
    1080, // BLOB
    33333338 };
    Key<StreamConfigurationDuration[]> stallDurationKey = CameraCharacteristics.SCALER_AVAILABLE_STALL_DURATIONS.getNativeKey();
    mMetadata.writeValues(stallDurationKey.getTag(), toByteArray(rawAvailableStallDurations));
    //
    // android.scaler.streamConfigurationMap (synthetic as StreamConfigurationMap)
    //
    StreamConfigurationMap streamConfigMap = mMetadata.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    // Inputs
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.RAW_SENSOR, 320, 240, /*output*/
    false);
    // Outputs
    checkStreamConfigurationMapByFormatSize(streamConfigMap, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, 640, 480, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.JPEG, 1920, 1080, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.JPEG, 2048, 1536, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.JPEG, 2592, 1944, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.JPEG, 3200, 2400, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.YUV_420_888, 3200, 2400, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.YUV_420_888, 3264, 2448, /*output*/
    true);
    checkStreamConfigurationMapByFormatSize(streamConfigMap, ImageFormat.RAW_SENSOR, 3280, 2464, /*output*/
    true);
    // Min Frame Durations
    final int DURATION_TUPLE_SIZE = 4;
    for (int i = 0; i < expectedAvailableMinDurations.length; i += DURATION_TUPLE_SIZE) {
        checkStreamConfigurationMapDurationByFormatSize(streamConfigMap, (int) expectedAvailableMinDurations[i], (int) expectedAvailableMinDurations[i + 1], (int) expectedAvailableMinDurations[i + 2], Duration.MinFrame, expectedAvailableMinDurations[i + 3]);
    }
    for (int i = 0; i < expectedAvailableStallDurations.length; i += DURATION_TUPLE_SIZE) {
        checkStreamConfigurationMapDurationByFormatSize(streamConfigMap, (int) expectedAvailableStallDurations[i], (int) expectedAvailableStallDurations[i + 1], (int) expectedAvailableStallDurations[i + 2], Duration.Stall, expectedAvailableStallDurations[i + 3]);
    }
}

Example 10 with StreamConfigurationDuration

use of android.hardware.camera2.params.StreamConfigurationDuration in project platform_frameworks_base by android.

the class LegacyMetadataMapper method mapScalerStreamConfigs.

private static void mapScalerStreamConfigs(CameraMetadataNative m, Camera.Parameters p) {
    ArrayList<StreamConfiguration> availableStreamConfigs = new ArrayList<>();
    /*
         * Implementation-defined (preview, recording, etc) -> use camera1 preview sizes
         * YUV_420_888 cpu callbacks -> use camera1 preview sizes
         * Other preview callbacks (CPU) -> use camera1 preview sizes
         * JPEG still capture -> use camera1 still capture sizes
         *
         * Use platform-internal format constants here, since StreamConfigurationMap does the
         * remapping to public format constants.
         */
    List<Camera.Size> previewSizes = p.getSupportedPreviewSizes();
    List<Camera.Size> jpegSizes = p.getSupportedPictureSizes();
    /*
         * Work-around for b/17589233:
         * - Some HALs's largest preview size aspect ratio does not match the largest JPEG size AR
         * - This causes a large amount of problems with focus/metering because it's relative to
         *   preview, making the difference between the JPEG and preview viewport inaccessible
         * - This boils down to metering or focusing areas being "arbitrarily" cropped
         *   in the capture result.
         * - Work-around the HAL limitations by removing all of the largest preview sizes
         *   until we get one with the same aspect ratio as the jpeg size.
         */
    {
        SizeAreaComparator areaComparator = new SizeAreaComparator();
        // Sort preview to min->max
        Collections.sort(previewSizes, areaComparator);
        Camera.Size maxJpegSize = SizeAreaComparator.findLargestByArea(jpegSizes);
        float jpegAspectRatio = maxJpegSize.width * 1.0f / maxJpegSize.height;
        if (DEBUG) {
            Log.v(TAG, String.format("mapScalerStreamConfigs - largest JPEG area %dx%d, AR=%f", maxJpegSize.width, maxJpegSize.height, jpegAspectRatio));
        }
        // Now remove preview sizes from the end (largest->smallest) until aspect ratio matches
        while (!previewSizes.isEmpty()) {
            // max is always at the end
            int index = previewSizes.size() - 1;
            Camera.Size size = previewSizes.get(index);
            float previewAspectRatio = size.width * 1.0f / size.height;
            if (Math.abs(jpegAspectRatio - previewAspectRatio) >= PREVIEW_ASPECT_RATIO_TOLERANCE) {
                // Assume removing from end is O(1)
                previewSizes.remove(index);
                if (DEBUG) {
                    Log.v(TAG, String.format("mapScalerStreamConfigs - removed preview size %dx%d, AR=%f " + "was not the same", size.width, size.height, previewAspectRatio));
                }
            } else {
                break;
            }
        }
        if (previewSizes.isEmpty()) {
            // Fall-back to the original faulty behavior, but at least work
            Log.w(TAG, "mapScalerStreamConfigs - failed to find any preview size matching " + "JPEG aspect ratio " + jpegAspectRatio);
            previewSizes = p.getSupportedPreviewSizes();
        }
        // Sort again, this time in descending order max->min
        Collections.sort(previewSizes, Collections.reverseOrder(areaComparator));
    }
    appendStreamConfig(availableStreamConfigs, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, previewSizes);
    appendStreamConfig(availableStreamConfigs, ImageFormat.YUV_420_888, previewSizes);
    for (int format : p.getSupportedPreviewFormats()) {
        if (ImageFormat.isPublicFormat(format) && format != ImageFormat.NV21) {
            appendStreamConfig(availableStreamConfigs, format, previewSizes);
        } else if (DEBUG) {
            /*
                 *  Do not add any formats unknown to us
                 * (since it would fail runtime checks in StreamConfigurationMap)
                 */
            Log.v(TAG, String.format("mapStreamConfigs - Skipping format %x", format));
        }
    }
    appendStreamConfig(availableStreamConfigs, HAL_PIXEL_FORMAT_BLOB, p.getSupportedPictureSizes());
    /*
         * scaler.availableStreamConfigurations
         */
    m.set(SCALER_AVAILABLE_STREAM_CONFIGURATIONS, availableStreamConfigs.toArray(new StreamConfiguration[0]));
    /*
         * scaler.availableMinFrameDurations
         */
    // No frame durations available
    m.set(SCALER_AVAILABLE_MIN_FRAME_DURATIONS, new StreamConfigurationDuration[0]);
    StreamConfigurationDuration[] jpegStalls = new StreamConfigurationDuration[jpegSizes.size()];
    int i = 0;
    long longestStallDuration = -1;
    for (Camera.Size s : jpegSizes) {
        long stallDuration = calculateJpegStallDuration(s);
        jpegStalls[i++] = new StreamConfigurationDuration(HAL_PIXEL_FORMAT_BLOB, s.width, s.height, stallDuration);
        if (longestStallDuration < stallDuration) {
            longestStallDuration = stallDuration;
        }
    }
    /*
         * scaler.availableStallDurations
         */
    // Set stall durations for jpeg, other formats use default stall duration
    m.set(SCALER_AVAILABLE_STALL_DURATIONS, jpegStalls);
    /*
         * sensor.info.maxFrameDuration
         */
    m.set(SENSOR_INFO_MAX_FRAME_DURATION, longestStallDuration);
}