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Android example source code file (MediaProfileReader.java)

This example Android source code file (MediaProfileReader.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

android, audio, audiodecoder, don't, hashmap, illegalargumentexception, list, media, mediaprofilereader, photo, sound, string, unsupported, util, video, videodecoder

The MediaProfileReader.java Android example source code

/*
 * Copyright (C) 2009 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.mediaframeworktest;

import android.media.MediaRecorder;
import android.media.EncoderCapabilities;
import android.media.EncoderCapabilities.VideoEncoderCap;
import android.media.EncoderCapabilities.AudioEncoderCap;
import android.media.DecoderCapabilities;
import android.media.DecoderCapabilities.VideoDecoder;
import android.media.DecoderCapabilities.AudioDecoder;

import android.os.SystemProperties;
import java.util.List;
import java.util.HashMap;

public class MediaProfileReader
{
    private static final List<VideoDecoder> videoDecoders = DecoderCapabilities.getVideoDecoders();
    private static final List<AudioDecoder> audioDecoders = DecoderCapabilities.getAudioDecoders();
    private static final List<VideoEncoderCap> videoEncoders = EncoderCapabilities.getVideoEncoders();
    private static final List<AudioEncoderCap> audioEncoders = EncoderCapabilities.getAudioEncoders();
    private static final HashMap<Integer, String> encoderMap = new HashMap();

    static {
        initEncoderMap();
    };

    public static List<VideoEncoderCap> getVideoEncoders() {
        return videoEncoders;
    }

    public static List<AudioEncoderCap> getAudioEncoders() {
        return audioEncoders;
    }

    public static String getDeviceType() {
        // push all the property into one big table
        String s;
        s = SystemProperties.get("ro.product.name");
        return s;
    }

    public static boolean getWMAEnable() {
        for (AudioDecoder decoder: audioDecoders) {
            if (decoder == AudioDecoder.AUDIO_DECODER_WMA) {
                return true;
            }
        }
        return false;
    }

    public static boolean getWMVEnable(){
        for (VideoDecoder decoder: videoDecoders) {
            if (decoder == VideoDecoder.VIDEO_DECODER_WMV) {
                return true;
            }
        }
        return false;
    }

    public static String getVideoCodecName(int videoEncoder) {
        if (videoEncoder != MediaRecorder.VideoEncoder.H263 &&
            videoEncoder != MediaRecorder.VideoEncoder.H264 &&
            videoEncoder != MediaRecorder.VideoEncoder.MPEG_4_SP) {
            throw new IllegalArgumentException("Unsupported video encoder " + videoEncoder);
        }
        return encoderMap.get(videoEncoder);
    }

    public static String getAudioCodecName(int audioEncoder) {
        if (audioEncoder != MediaRecorder.AudioEncoder.AMR_NB &&
            audioEncoder != MediaRecorder.AudioEncoder.AMR_WB &&
            audioEncoder != MediaRecorder.AudioEncoder.AAC &&
            audioEncoder != MediaRecorder.AudioEncoder.AAC_PLUS &&
            audioEncoder != MediaRecorder.AudioEncoder.EAAC_PLUS) {
            throw new IllegalArgumentException("Unsupported audio encodeer " + audioEncoder);
        }
        return encoderMap.get(audioEncoder);
    }

    private MediaProfileReader() {} // Don't call me

    private static void initEncoderMap() {
        // video encoders
        encoderMap.put(MediaRecorder.VideoEncoder.H263, "h263");
        encoderMap.put(MediaRecorder.VideoEncoder.H264, "h264");
        encoderMap.put(MediaRecorder.VideoEncoder.MPEG_4_SP, "m4v");

        // audio encoders
        encoderMap.put(MediaRecorder.AudioEncoder.AMR_NB, "amrnb");
        encoderMap.put(MediaRecorder.AudioEncoder.AMR_WB, "amrwb");
        encoderMap.put(MediaRecorder.AudioEncoder.AAC, "aac");
        encoderMap.put(MediaRecorder.AudioEncoder.AAC_PLUS, "aacplus");
        encoderMap.put(MediaRecorder.AudioEncoder.EAAC_PLUS, "eaacplus");
    }
}

Other Android examples (source code examples)

Here is a short list of links related to this Android MediaProfileReader.java source code file:

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