MediaProfileReader.java revision 15a4d2ffd04dc6c70f2cd17dae12ac6bc14c69ab 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.mediaframeworktest;
18
19import android.media.MediaRecorder;
20import android.media.EncoderCapabilities;
21import android.media.EncoderCapabilities.VideoEncoderCap;
22import android.media.EncoderCapabilities.AudioEncoderCap;
23import android.media.DecoderCapabilities;
24import android.media.DecoderCapabilities.VideoDecoder;
25import android.media.DecoderCapabilities.AudioDecoder;
26
27import android.os.SystemProperties;
28import java.util.List;
29import java.util.HashMap;
30
31public class MediaProfileReader
32{
33    private static final List<VideoDecoder> videoDecoders = DecoderCapabilities.getVideoDecoders();
34    private static final List<AudioDecoder> audioDecoders = DecoderCapabilities.getAudioDecoders();
35    private static final List<VideoEncoderCap> videoEncoders = EncoderCapabilities.getVideoEncoders();
36    private static final List<AudioEncoderCap> audioEncoders = EncoderCapabilities.getAudioEncoders();
37    private static final HashMap<Integer, String> encoderMap = new HashMap<Integer, String>();
38
39    static {
40        initEncoderMap();
41    };
42
43    public static List<VideoEncoderCap> getVideoEncoders() {
44        return videoEncoders;
45    }
46
47    public static List<AudioEncoderCap> getAudioEncoders() {
48        return audioEncoders;
49    }
50
51    public static String getDeviceType() {
52        // push all the property into one big table
53        String s;
54        s = SystemProperties.get("ro.product.name");
55        return s;
56    }
57
58    public static boolean getWMAEnable() {
59        for (AudioDecoder decoder: audioDecoders) {
60            if (decoder == AudioDecoder.AUDIO_DECODER_WMA) {
61                return true;
62            }
63        }
64        return false;
65    }
66
67    public static boolean getWMVEnable(){
68        for (VideoDecoder decoder: videoDecoders) {
69            if (decoder == VideoDecoder.VIDEO_DECODER_WMV) {
70                return true;
71            }
72        }
73        return false;
74    }
75
76    public static String getVideoCodecName(int videoEncoder) {
77        if (videoEncoder != MediaRecorder.VideoEncoder.H263 &&
78            videoEncoder != MediaRecorder.VideoEncoder.H264 &&
79            videoEncoder != MediaRecorder.VideoEncoder.MPEG_4_SP) {
80            throw new IllegalArgumentException("Unsupported video encoder " + videoEncoder);
81        }
82        return encoderMap.get(videoEncoder);
83    }
84
85    public static String getAudioCodecName(int audioEncoder) {
86        if (audioEncoder != MediaRecorder.AudioEncoder.AMR_NB &&
87            audioEncoder != MediaRecorder.AudioEncoder.AMR_WB &&
88            audioEncoder != MediaRecorder.AudioEncoder.AAC &&
89            audioEncoder != MediaRecorder.AudioEncoder.AAC_PLUS &&
90            audioEncoder != MediaRecorder.AudioEncoder.EAAC_PLUS) {
91            throw new IllegalArgumentException("Unsupported audio encodeer " + audioEncoder);
92        }
93        return encoderMap.get(audioEncoder);
94    }
95
96    private MediaProfileReader() {} // Don't call me
97
98    private static void initEncoderMap() {
99        // video encoders
100        encoderMap.put(MediaRecorder.VideoEncoder.H263, "h263");
101        encoderMap.put(MediaRecorder.VideoEncoder.H264, "h264");
102        encoderMap.put(MediaRecorder.VideoEncoder.MPEG_4_SP, "m4v");
103
104        // audio encoders
105        encoderMap.put(MediaRecorder.AudioEncoder.AMR_NB, "amrnb");
106        encoderMap.put(MediaRecorder.AudioEncoder.AMR_WB, "amrwb");
107        encoderMap.put(MediaRecorder.AudioEncoder.AAC, "aac");
108        encoderMap.put(MediaRecorder.AudioEncoder.AAC_PLUS, "aacplus");
109        encoderMap.put(MediaRecorder.AudioEncoder.EAAC_PLUS, "eaacplus");
110    }
111}
112