MediaFile.java revision 5dffd0e3af502acdc2e45425139ef8081fa4f0a8 
1/*
2 * Copyright (C) 2007 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 android.media;
18
19import android.content.ContentValues;
20import android.provider.MediaStore.Audio;
21import android.provider.MediaStore.Images;
22import android.provider.MediaStore.Video;
23import android.media.DecoderCapabilities;
24import android.media.DecoderCapabilities.VideoDecoder;
25import android.media.DecoderCapabilities.AudioDecoder;
26
27import java.util.HashMap;
28import java.util.Iterator;
29import java.util.List;
30
31/**
32 * MediaScanner helper class.
33 *
34 * {@hide}
35 */
36public class MediaFile {
37
38    // Audio file types
39    public static final int FILE_TYPE_MP3     = 1;
40    public static final int FILE_TYPE_M4A     = 2;
41    public static final int FILE_TYPE_WAV     = 3;
42    public static final int FILE_TYPE_AMR     = 4;
43    public static final int FILE_TYPE_AWB     = 5;
44    public static final int FILE_TYPE_WMA     = 6;
45    public static final int FILE_TYPE_OGG     = 7;
46    public static final int FILE_TYPE_AAC     = 8;
47    public static final int FILE_TYPE_MKA     = 9;
48    private static final int FIRST_AUDIO_FILE_TYPE = FILE_TYPE_MP3;
49    private static final int LAST_AUDIO_FILE_TYPE = FILE_TYPE_MKA;
50
51    // MIDI file types
52    public static final int FILE_TYPE_MID     = 11;
53    public static final int FILE_TYPE_SMF     = 12;
54    public static final int FILE_TYPE_IMY     = 13;
55    private static final int FIRST_MIDI_FILE_TYPE = FILE_TYPE_MID;
56    private static final int LAST_MIDI_FILE_TYPE = FILE_TYPE_IMY;
57
58    // Video file types
59    public static final int FILE_TYPE_MP4     = 21;
60    public static final int FILE_TYPE_M4V     = 22;
61    public static final int FILE_TYPE_3GPP    = 23;
62    public static final int FILE_TYPE_3GPP2   = 24;
63    public static final int FILE_TYPE_WMV     = 25;
64    public static final int FILE_TYPE_ASF     = 26;
65    public static final int FILE_TYPE_MKV     = 27;
66    public static final int FILE_TYPE_MP2TS   = 28;
67    private static final int FIRST_VIDEO_FILE_TYPE = FILE_TYPE_MP4;
68    private static final int LAST_VIDEO_FILE_TYPE = FILE_TYPE_MP2TS;
69
70    // Image file types
71    public static final int FILE_TYPE_JPEG    = 31;
72    public static final int FILE_TYPE_GIF     = 32;
73    public static final int FILE_TYPE_PNG     = 33;
74    public static final int FILE_TYPE_BMP     = 34;
75    public static final int FILE_TYPE_WBMP    = 35;
76    private static final int FIRST_IMAGE_FILE_TYPE = FILE_TYPE_JPEG;
77    private static final int LAST_IMAGE_FILE_TYPE = FILE_TYPE_WBMP;
78
79    // Playlist file types
80    public static final int FILE_TYPE_M3U      = 41;
81    public static final int FILE_TYPE_PLS      = 42;
82    public static final int FILE_TYPE_WPL      = 43;
83    public static final int FILE_TYPE_HTTPLIVE = 44;
84
85    private static final int FIRST_PLAYLIST_FILE_TYPE = FILE_TYPE_M3U;
86    private static final int LAST_PLAYLIST_FILE_TYPE = FILE_TYPE_HTTPLIVE;
87
88    // Drm file types
89    public static final int FILE_TYPE_FL      = 51;
90    private static final int FIRST_DRM_FILE_TYPE = FILE_TYPE_FL;
91    private static final int LAST_DRM_FILE_TYPE = FILE_TYPE_FL;
92
93    // Other popular file types
94    public static final int FILE_TYPE_TEXT          = 100;
95    public static final int FILE_TYPE_HTML          = 101;
96    public static final int FILE_TYPE_PDF           = 102;
97    public static final int FILE_TYPE_XML           = 103;
98    public static final int FILE_TYPE_MS_WORD       = 104;
99    public static final int FILE_TYPE_MS_EXCEL      = 105;
100    public static final int FILE_TYPE_MS_POWERPOINT = 106;
101    public static final int FILE_TYPE_FLAC          = 107;
102    public static final int FILE_TYPE_ZIP           = 108;
103
104    static class MediaFileType {
105
106        int fileType;
107        String mimeType;
108
109        MediaFileType(int fileType, String mimeType) {
110            this.fileType = fileType;
111            this.mimeType = mimeType;
112        }
113    }
114
115    private static HashMap<String, MediaFileType> sFileTypeMap
116            = new HashMap<String, MediaFileType>();
117    private static HashMap<String, Integer> sMimeTypeMap
118            = new HashMap<String, Integer>();
119    // maps file extension to MTP format code
120    private static HashMap<String, Integer> sFileTypeToFormatMap
121            = new HashMap<String, Integer>();
122    // maps mime type to MTP format code
123    private static HashMap<String, Integer> sMimeTypeToFormatMap
124            = new HashMap<String, Integer>();
125    // maps MTP format code to mime type
126    private static HashMap<Integer, String> sFormatToMimeTypeMap
127            = new HashMap<Integer, String>();
128
129    static void addFileType(String extension, int fileType, String mimeType) {
130        sFileTypeMap.put(extension, new MediaFileType(fileType, mimeType));
131        sMimeTypeMap.put(mimeType, Integer.valueOf(fileType));
132    }
133
134    static void addFileType(String extension, int fileType, String mimeType, int mtpFormatCode) {
135        addFileType(extension, fileType, mimeType);
136        sFileTypeToFormatMap.put(extension, Integer.valueOf(mtpFormatCode));
137        sMimeTypeToFormatMap.put(mimeType, Integer.valueOf(mtpFormatCode));
138        sFormatToMimeTypeMap.put(mtpFormatCode, mimeType);
139    }
140
141    private static boolean isWMAEnabled() {
142        List<AudioDecoder> decoders = DecoderCapabilities.getAudioDecoders();
143        for (AudioDecoder decoder: decoders) {
144            if (decoder == AudioDecoder.AUDIO_DECODER_WMA) {
145                return true;
146            }
147        }
148        return false;
149    }
150
151    static {
152        addFileType("MP3", FILE_TYPE_MP3, "audio/mpeg", MtpConstants.FORMAT_MP3);
153        addFileType("M4A", FILE_TYPE_M4A, "audio/mp4", MtpConstants.FORMAT_MPEG);
154        addFileType("WAV", FILE_TYPE_WAV, "audio/x-wav", MtpConstants.FORMAT_WAV);
155        addFileType("AMR", FILE_TYPE_AMR, "audio/amr");
156        addFileType("AWB", FILE_TYPE_AWB, "audio/amr-wb");
157        if (isWMAEnabled()) {
158            addFileType("WMA", FILE_TYPE_WMA, "audio/x-ms-wma", MtpConstants.FORMAT_WMA);
159        }
160        addFileType("OGG", FILE_TYPE_OGG, "application/ogg", MtpConstants.FORMAT_OGG);
161        addFileType("OGA", FILE_TYPE_OGG, "application/ogg", MtpConstants.FORMAT_OGG);
162        addFileType("AAC", FILE_TYPE_AAC, "audio/aac", MtpConstants.FORMAT_AAC);
163        addFileType("MKA", FILE_TYPE_MKA, "audio/x-matroska");
164
165        addFileType("MID", FILE_TYPE_MID, "audio/midi");
166        addFileType("MIDI", FILE_TYPE_MID, "audio/midi");
167        addFileType("XMF", FILE_TYPE_MID, "audio/midi");
168        addFileType("RTTTL", FILE_TYPE_MID, "audio/midi");
169        addFileType("SMF", FILE_TYPE_SMF, "audio/sp-midi");
170        addFileType("IMY", FILE_TYPE_IMY, "audio/imelody");
171        addFileType("RTX", FILE_TYPE_MID, "audio/midi");
172        addFileType("OTA", FILE_TYPE_MID, "audio/midi");
173
174        addFileType("MPEG", FILE_TYPE_MP4, "video/mpeg", MtpConstants.FORMAT_MPEG);
175        addFileType("MPG", FILE_TYPE_MP4, "video/mpeg", MtpConstants.FORMAT_MPEG);
176        addFileType("MP4", FILE_TYPE_MP4, "video/mp4", MtpConstants.FORMAT_MPEG);
177        addFileType("M4V", FILE_TYPE_M4V, "video/mp4", MtpConstants.FORMAT_MPEG);
178        addFileType("3GP", FILE_TYPE_3GPP, "video/3gpp",  MtpConstants.FORMAT_3GP_CONTAINER);
179        addFileType("3GPP", FILE_TYPE_3GPP, "video/3gpp", MtpConstants.FORMAT_3GP_CONTAINER);
180        addFileType("3G2", FILE_TYPE_3GPP2, "video/3gpp2", MtpConstants.FORMAT_3GP_CONTAINER);
181        addFileType("3GPP2", FILE_TYPE_3GPP2, "video/3gpp2", MtpConstants.FORMAT_3GP_CONTAINER);
182        addFileType("MKV", FILE_TYPE_MKV, "video/x-matroska");
183        addFileType("WEBM", FILE_TYPE_MKV, "video/x-matroska");
184        addFileType("TS", FILE_TYPE_MP2TS, "video/mp2ts");
185
186        addFileType("WMV", FILE_TYPE_WMV, "video/x-ms-wmv", MtpConstants.FORMAT_WMV);
187        addFileType("ASF", FILE_TYPE_ASF, "video/x-ms-asf");
188
189        addFileType("JPG", FILE_TYPE_JPEG, "image/jpeg", MtpConstants.FORMAT_EXIF_JPEG);
190        addFileType("JPEG", FILE_TYPE_JPEG, "image/jpeg", MtpConstants.FORMAT_EXIF_JPEG);
191        addFileType("GIF", FILE_TYPE_GIF, "image/gif", MtpConstants.FORMAT_GIF);
192        addFileType("PNG", FILE_TYPE_PNG, "image/png", MtpConstants.FORMAT_PNG);
193        addFileType("BMP", FILE_TYPE_BMP, "image/x-ms-bmp", MtpConstants.FORMAT_BMP);
194        addFileType("WBMP", FILE_TYPE_WBMP, "image/vnd.wap.wbmp");
195
196        addFileType("M3U", FILE_TYPE_M3U, "audio/x-mpegurl", MtpConstants.FORMAT_M3U_PLAYLIST);
197        addFileType("PLS", FILE_TYPE_PLS, "audio/x-scpls", MtpConstants.FORMAT_PLS_PLAYLIST);
198        addFileType("WPL", FILE_TYPE_WPL, "application/vnd.ms-wpl", MtpConstants.FORMAT_WPL_PLAYLIST);
199        addFileType("M3U8", FILE_TYPE_HTTPLIVE, "application/vnd.apple.mpegurl");
200        addFileType("M3U8", FILE_TYPE_HTTPLIVE, "audio/mpegurl");
201        addFileType("M3U8", FILE_TYPE_HTTPLIVE, "audio/x-mpegurl");
202
203        addFileType("FL", FILE_TYPE_FL, "application/x-android-drm-fl");
204
205        addFileType("TXT", FILE_TYPE_TEXT, "text/plain", MtpConstants.FORMAT_TEXT);
206        addFileType("HTM", FILE_TYPE_HTML, "text/html", MtpConstants.FORMAT_HTML);
207        addFileType("HTML", FILE_TYPE_HTML, "text/html", MtpConstants.FORMAT_HTML);
208        addFileType("PDF", FILE_TYPE_PDF, "application/pdf");
209        addFileType("DOC", FILE_TYPE_MS_WORD, "application/msword", MtpConstants.FORMAT_MS_WORD_DOCUMENT);
210        addFileType("XLS", FILE_TYPE_MS_EXCEL, "application/vnd.ms-excel", MtpConstants.FORMAT_MS_EXCEL_SPREADSHEET);
211        addFileType("PPT", FILE_TYPE_MS_POWERPOINT, "application/mspowerpoint", MtpConstants.FORMAT_MS_POWERPOINT_PRESENTATION);
212        addFileType("FLAC", FILE_TYPE_FLAC, "audio/flac", MtpConstants.FORMAT_FLAC);
213        addFileType("ZIP", FILE_TYPE_ZIP, "application/zip");
214    }
215
216    public static boolean isAudioFileType(int fileType) {
217        return ((fileType >= FIRST_AUDIO_FILE_TYPE &&
218                fileType <= LAST_AUDIO_FILE_TYPE) ||
219                (fileType >= FIRST_MIDI_FILE_TYPE &&
220                fileType <= LAST_MIDI_FILE_TYPE));
221    }
222
223    public static boolean isVideoFileType(int fileType) {
224        return (fileType >= FIRST_VIDEO_FILE_TYPE &&
225                fileType <= LAST_VIDEO_FILE_TYPE);
226    }
227
228    public static boolean isImageFileType(int fileType) {
229        return (fileType >= FIRST_IMAGE_FILE_TYPE &&
230                fileType <= LAST_IMAGE_FILE_TYPE);
231    }
232
233    public static boolean isPlayListFileType(int fileType) {
234        return (fileType >= FIRST_PLAYLIST_FILE_TYPE &&
235                fileType <= LAST_PLAYLIST_FILE_TYPE);
236    }
237
238    public static boolean isDrmFileType(int fileType) {
239        return (fileType >= FIRST_DRM_FILE_TYPE &&
240                fileType <= LAST_DRM_FILE_TYPE);
241    }
242
243    public static MediaFileType getFileType(String path) {
244        int lastDot = path.lastIndexOf(".");
245        if (lastDot < 0)
246            return null;
247        return sFileTypeMap.get(path.substring(lastDot + 1).toUpperCase());
248    }
249
250    public static boolean isMimeTypeMedia(String mimeType) {
251        int fileType = getFileTypeForMimeType(mimeType);
252        return isAudioFileType(fileType) || isVideoFileType(fileType)
253                || isImageFileType(fileType) || isPlayListFileType(fileType);
254    }
255
256    // generates a title based on file name
257    public static String getFileTitle(String path) {
258        // extract file name after last slash
259        int lastSlash = path.lastIndexOf('/');
260        if (lastSlash >= 0) {
261            lastSlash++;
262            if (lastSlash < path.length()) {
263                path = path.substring(lastSlash);
264            }
265        }
266        // truncate the file extension (if any)
267        int lastDot = path.lastIndexOf('.');
268        if (lastDot > 0) {
269            path = path.substring(0, lastDot);
270        }
271        return path;
272    }
273
274    public static int getFileTypeForMimeType(String mimeType) {
275        Integer value = sMimeTypeMap.get(mimeType);
276        return (value == null ? 0 : value.intValue());
277    }
278
279    public static String getMimeTypeForFile(String path) {
280        MediaFileType mediaFileType = getFileType(path);
281        return (mediaFileType == null ? null : mediaFileType.mimeType);
282    }
283
284    public static int getFormatCode(String fileName, String mimeType) {
285        if (mimeType != null) {
286            Integer value = sMimeTypeToFormatMap.get(mimeType);
287            if (value != null) {
288                return value.intValue();
289            }
290        }
291        int lastDot = fileName.lastIndexOf('.');
292        if (lastDot > 0) {
293            String extension = fileName.substring(lastDot + 1);
294            Integer value = sFileTypeToFormatMap.get(extension);
295            if (value != null) {
296                return value.intValue();
297            }
298        }
299        return MtpConstants.FORMAT_UNDEFINED;
300    }
301
302    public static String getMimeTypeForFormatCode(int formatCode) {
303        return sFormatToMimeTypeMap.get(formatCode);
304    }
305}
306