MediaProfileReader.java revision 1b7babd2cce5bb10adac7b061cf7ba065d480edb 
1package com.android.mediaframeworktest;
2
3import android.media.MediaRecorder;
4import android.media.EncoderCapabilities;
5import android.media.EncoderCapabilities.VideoEncoderCap;
6import android.media.EncoderCapabilities.AudioEncoderCap;
7import android.media.DecoderCapabilities;
8import android.media.DecoderCapabilities.VideoDecoder;
9import android.media.DecoderCapabilities.AudioDecoder;
10
11import android.os.SystemProperties;
12import java.util.List;
13import java.util.HashMap;
14
15public class MediaProfileReader
16{
17    private static final List<VideoDecoder> videoDecoders = DecoderCapabilities.getVideoDecoders();
18    private static final List<AudioDecoder> audioDecoders = DecoderCapabilities.getAudioDecoders();
19    private static final List<VideoEncoderCap> videoEncoders = EncoderCapabilities.getVideoEncoders();
20    private static final List<AudioEncoderCap> audioEncoders = EncoderCapabilities.getAudioEncoders();
21    private static final HashMap<Integer, String> encoderMap = new HashMap<Integer, String>();
22
23    static {
24        initEncoderMap();
25    };
26
27    public static List<VideoEncoderCap> getVideoEncoders() {
28        return videoEncoders;
29    }
30
31    public static List<AudioEncoderCap> getAudioEncoders() {
32        return audioEncoders;
33    }
34
35    public static String getDeviceType() {
36        // push all the property into one big table
37        String s;
38        s = SystemProperties.get("ro.product.name");
39        return s;
40    }
41
42    public static boolean getWMAEnable() {
43        for (AudioDecoder decoder: audioDecoders) {
44            if (decoder == AudioDecoder.AUDIO_DECODER_WMA) {
45                return true;
46            }
47        }
48        return false;
49    }
50
51    public static boolean getWMVEnable(){
52        for (VideoDecoder decoder: videoDecoders) {
53            if (decoder == VideoDecoder.VIDEO_DECODER_WMV) {
54                return true;
55            }
56        }
57        return false;
58    }
59
60    public static String getVideoCodecName(int videoEncoder) {
61        if (videoEncoder != MediaRecorder.VideoEncoder.H263 &&
62            videoEncoder != MediaRecorder.VideoEncoder.H264 &&
63            videoEncoder != MediaRecorder.VideoEncoder.MPEG_4_SP) {
64            throw new IllegalArgumentException("Unsupported video encoder " + videoEncoder);
65        }
66        return encoderMap.get(videoEncoder);
67    }
68
69    public static String getAudioCodecName(int audioEncoder) {
70        if (audioEncoder != MediaRecorder.AudioEncoder.AMR_NB &&
71            audioEncoder != MediaRecorder.AudioEncoder.AMR_WB &&
72            audioEncoder != MediaRecorder.AudioEncoder.AAC &&
73            audioEncoder != MediaRecorder.AudioEncoder.AAC_PLUS &&
74            audioEncoder != MediaRecorder.AudioEncoder.EAAC_PLUS) {
75            throw new IllegalArgumentException("Unsupported audio encodeer " + audioEncoder);
76        }
77        return encoderMap.get(audioEncoder);
78    }
79
80    private MediaProfileReader() {} // Don't call me
81
82    private static void initEncoderMap() {
83        // video encoders
84        encoderMap.put(MediaRecorder.VideoEncoder.H263, "h263");
85        encoderMap.put(MediaRecorder.VideoEncoder.H264, "h264");
86        encoderMap.put(MediaRecorder.VideoEncoder.MPEG_4_SP, "m4v");
87
88        // audio encoders
89        encoderMap.put(MediaRecorder.AudioEncoder.AMR_NB, "amrnb");
90        encoderMap.put(MediaRecorder.AudioEncoder.AMR_WB, "amrwb");
91        encoderMap.put(MediaRecorder.AudioEncoder.AAC, "aac");
92        encoderMap.put(MediaRecorder.AudioEncoder.AAC_PLUS, "aacplus");
93        encoderMap.put(MediaRecorder.AudioEncoder.EAAC_PLUS, "eaacplus");
94    }
95}
96