src/com/android/camera/JpegEncodingQualityMappings.java


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/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.camera;

import android.media.CameraProfile;
import android.util.Log;

import java.util.HashMap;

/*
 * Provide a mapping for Jpeg encoding quality levels
 * from String representation to numeric representation.
 */
public class JpegEncodingQualityMappings {
    private static final String TAG = "JpegEncodingQualityMappings";
    private static final int DEFAULT_QUALITY = 85;
    private static HashMap<String, Integer> mHashMap =
            new HashMap<String, Integer>();

    static {
        mHashMap.put("normal",    CameraProfile.QUALITY_LOW);
        mHashMap.put("fine",      CameraProfile.QUALITY_MEDIUM);
        mHashMap.put("superfine", CameraProfile.QUALITY_HIGH);
    }

    // Retrieve and return the Jpeg encoding quality number
    // for the given quality level.
    public static int getQualityNumber(String jpegQuality) {
        Integer quality = mHashMap.get(jpegQuality);
        if (quality == null) {
            Log.w(TAG, "Unknown Jpeg quality: " + jpegQuality);
            return DEFAULT_QUALITY;
        }
        return CameraProfile.getJpegEncodingQualityParameter(quality.intValue());
    }
}