e64d9a236e
1. CamcorderProfile: “@see” links are broken; Remove m prefix from fields; remove “final” 2. CamcorderProfile.Quality: use an int rather than an enum 3. Add API on MediaRecorder to pass in a CamcorderProfile 4. CameraProfile.getImageEncodingQualityLevels @hide or make it consistent with CamcorderProfile 5. Remove a convenient method and instead let the (mms) app do that task bug - 2553862 Change-Id: I759215c7892f772aeddf3651d17038489c6fbc50
83 lines
2.8 KiB
Java
83 lines
2.8 KiB
Java
/*
|
|
* 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 android.media;
|
|
|
|
import java.util.Arrays;
|
|
|
|
/**
|
|
* The CameraProfile class is used to retrieve the pre-defined still image
|
|
* capture (jpeg) quality levels (0-100) used for low, medium, and high
|
|
* quality settings in the Camera application.
|
|
*
|
|
*/
|
|
public class CameraProfile
|
|
{
|
|
/**
|
|
* Define three quality levels for JPEG image encoding.
|
|
*/
|
|
/*
|
|
* Don't change the values for these constants unless getImageEncodingQualityLevels()
|
|
* method is also changed accordingly.
|
|
*/
|
|
public static final int QUALITY_LOW = 0;
|
|
public static final int QUALITY_MEDIUM = 1;
|
|
public static final int QUALITY_HIGH = 2;
|
|
|
|
/*
|
|
* Cache the Jpeg encoding quality parameters
|
|
*/
|
|
private static final int[] sJpegEncodingQualityParameters;
|
|
|
|
/**
|
|
* Returns a pre-defined still image capture (jpeg) quality level
|
|
* used for the given quality level in the Camera application.
|
|
*
|
|
* @param quality The target quality level
|
|
*/
|
|
public static int getJpegEncodingQualityParameter(int quality) {
|
|
if (quality < QUALITY_LOW || quality > QUALITY_HIGH) {
|
|
throw new IllegalArgumentException("Unsupported quality level: " + quality);
|
|
}
|
|
return sJpegEncodingQualityParameters[quality];
|
|
}
|
|
|
|
static {
|
|
System.loadLibrary("media_jni");
|
|
native_init();
|
|
sJpegEncodingQualityParameters = getImageEncodingQualityLevels();
|
|
}
|
|
|
|
private static int[] getImageEncodingQualityLevels() {
|
|
int nLevels = native_get_num_image_encoding_quality_levels();
|
|
if (nLevels != QUALITY_HIGH + 1) {
|
|
throw new RuntimeException("Unexpected Jpeg encoding quality levels " + nLevels);
|
|
}
|
|
|
|
int[] levels = new int[nLevels];
|
|
for (int i = 0; i < nLevels; ++i) {
|
|
levels[i] = native_get_image_encoding_quality_level(i);
|
|
}
|
|
Arrays.sort(levels); // Lower quality level ALWAYS comes before higher one
|
|
return levels;
|
|
}
|
|
|
|
// Methods implemented by JNI
|
|
private static native final void native_init();
|
|
private static native final int native_get_num_image_encoding_quality_levels();
|
|
private static native final int native_get_image_encoding_quality_level(int index);
|
|
}
|