1 /*
2  * Copyright (C) 2008 Esmertec AG.
3  * Copyright (C) 2008 The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 package com.android.mms.model;
19 
20 import org.w3c.dom.events.Event;
21 import org.w3c.dom.smil.ElementTime;
22 
23 import android.content.ContentResolver;
24 import android.content.Context;
25 import android.database.Cursor;
26 import android.database.sqlite.SqliteWrapper;
27 import android.net.Uri;
28 import android.provider.MediaStore.Images;
29 import android.text.TextUtils;
30 import android.util.Log;
31 import android.webkit.MimeTypeMap;
32 
33 import com.android.mms.ContentRestrictionException;
34 import com.android.mms.LogTag;
35 import com.android.mms.MmsApp;
36 import com.android.mms.dom.events.EventImpl;
37 import com.android.mms.dom.smil.SmilMediaElementImpl;
38 import com.android.mms.util.ItemLoadedCallback;
39 import com.android.mms.util.ItemLoadedFuture;
40 import com.android.mms.util.ThumbnailManager;
41 import android.provider.Telephony.Mms.Part;
42 import com.google.android.mms.ContentType;
43 import com.google.android.mms.MmsException;
44 
45 public class VideoModel extends RegionMediaModel {
46     private static final String TAG = MediaModel.TAG;
47     private static final boolean DEBUG = true;
48     private static final boolean LOCAL_LOGV = false;
49     private ItemLoadedFuture mItemLoadedFuture;
50 
VideoModel(Context context, Uri uri, RegionModel region)51     public VideoModel(Context context, Uri uri, RegionModel region)
52             throws MmsException {
53         this(context, null, null, uri, region);
54         initModelFromUri(uri);
55         checkContentRestriction();
56     }
57 
VideoModel(Context context, String contentType, String src, Uri uri, RegionModel region)58     public VideoModel(Context context, String contentType, String src,
59             Uri uri, RegionModel region) throws MmsException {
60         super(context, SmilHelper.ELEMENT_TAG_VIDEO, contentType, src, uri, region);
61     }
62 
initModelFromUri(Uri uri)63     private void initModelFromUri(Uri uri) throws MmsException {
64         String scheme = uri.getScheme();
65         if (scheme.equals("content")) {
66             initFromContentUri(uri);
67         } else if (uri.getScheme().equals("file")) {
68             initFromFile(uri);
69         }
70         initMediaDuration();
71     }
72 
initFromFile(Uri uri)73     private void initFromFile(Uri uri) {
74         String path = uri.getPath();
75         mSrc = path.substring(path.lastIndexOf('/') + 1);
76         MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
77         String extension = MimeTypeMap.getFileExtensionFromUrl(mSrc);
78         if (TextUtils.isEmpty(extension)) {
79             // getMimeTypeFromExtension() doesn't handle spaces in filenames nor can it handle
80             // urlEncoded strings. Let's try one last time at finding the extension.
81             int dotPos = mSrc.lastIndexOf('.');
82             if (0 <= dotPos) {
83                 extension = mSrc.substring(dotPos + 1);
84             }
85         }
86         mContentType = mimeTypeMap.getMimeTypeFromExtension(extension);
87         // It's ok if mContentType is null. Eventually we'll show a toast telling the
88         // user the video couldn't be attached.
89 
90         if (Log.isLoggable(LogTag.APP, Log.VERBOSE)) {
91             Log.v(TAG, "New VideoModel initFromFile created:"
92                     + " mSrc=" + mSrc
93                     + " mContentType=" + mContentType
94                     + " mUri=" + uri);
95         }
96     }
97 
initFromContentUri(Uri uri)98     private void initFromContentUri(Uri uri) throws MmsException {
99         ContentResolver cr = mContext.getContentResolver();
100         Cursor c = SqliteWrapper.query(mContext, cr, uri, null, null, null, null);
101 
102         if (c != null) {
103             try {
104                 if (c.moveToFirst()) {
105                     String path;
106                     try {
107                         // Local videos will have a data column
108                         path = c.getString(c.getColumnIndexOrThrow(Images.Media.DATA));
109                     } catch (IllegalArgumentException e) {
110                         // For non-local videos, the path is the uri
111                         path = uri.toString();
112                     }
113                     mSrc = path.substring(path.lastIndexOf('/') + 1);
114                     if (VideoModel.isMmsUri(uri)) {
115                         mContentType = c.getString(c.getColumnIndexOrThrow(
116                                 Part.CONTENT_TYPE));
117                     } else {
118                         mContentType = c.getString(c.getColumnIndexOrThrow(
119                                 Images.Media.MIME_TYPE));
120                     }
121                     if (TextUtils.isEmpty(mContentType)) {
122                         throw new MmsException("Type of media is unknown.");
123                     }
124 
125                     if (mContentType.equals(ContentType.VIDEO_MP4) && !(TextUtils.isEmpty(mSrc))) {
126                         int index = mSrc.lastIndexOf(".");
127                         if (index != -1) {
128                             try {
129                                 String extension = mSrc.substring(index + 1);
130                                 if (!(TextUtils.isEmpty(extension)) &&
131                                         (extension.equalsIgnoreCase("3gp") ||
132                                         extension.equalsIgnoreCase("3gpp") ||
133                                         extension.equalsIgnoreCase("3g2"))) {
134                                     mContentType = ContentType.VIDEO_3GPP;
135                                 }
136                             } catch(IndexOutOfBoundsException ex) {
137                                 if (LOCAL_LOGV) {
138                                     Log.v(TAG, "Media extension is unknown.");
139                                 }
140                             }
141                         }
142                     }
143 
144                     if (Log.isLoggable(LogTag.APP, Log.VERBOSE)) {
145                         Log.v(TAG, "New VideoModel initFromContentUri created:"
146                                 + " mSrc=" + mSrc
147                                 + " mContentType=" + mContentType
148                                 + " mUri=" + uri);
149                     }
150                 } else {
151                     throw new MmsException("Nothing found: " + uri);
152                 }
153             } finally {
154                 c.close();
155             }
156         } else {
157             throw new MmsException("Bad URI: " + uri);
158         }
159     }
160 
161     // EventListener Interface
handleEvent(Event evt)162     public void handleEvent(Event evt) {
163         String evtType = evt.getType();
164         if (LOCAL_LOGV || Log.isLoggable(LogTag.APP, Log.VERBOSE)) {
165             Log.v(TAG, "[VideoModel] handleEvent " + evt.getType() + " on " + this);
166         }
167 
168         MediaAction action = MediaAction.NO_ACTIVE_ACTION;
169         if (evtType.equals(SmilMediaElementImpl.SMIL_MEDIA_START_EVENT)) {
170             action = MediaAction.START;
171 
172             // if the Music player app is playing audio, we should pause that so it won't
173             // interfere with us playing video here.
174             pauseMusicPlayer();
175 
176             mVisible = true;
177         } else if (evtType.equals(SmilMediaElementImpl.SMIL_MEDIA_END_EVENT)) {
178             action = MediaAction.STOP;
179             if (mFill != ElementTime.FILL_FREEZE) {
180                 mVisible = false;
181             }
182         } else if (evtType.equals(SmilMediaElementImpl.SMIL_MEDIA_PAUSE_EVENT)) {
183             action = MediaAction.PAUSE;
184             mVisible = true;
185         } else if (evtType.equals(SmilMediaElementImpl.SMIL_MEDIA_SEEK_EVENT)) {
186             action = MediaAction.SEEK;
187             mSeekTo = ((EventImpl) evt).getSeekTo();
188             mVisible = true;
189         }
190 
191         appendAction(action);
192         notifyModelChanged(false);
193     }
194 
checkContentRestriction()195     protected void checkContentRestriction() throws ContentRestrictionException {
196         ContentRestriction cr = ContentRestrictionFactory.getContentRestriction();
197         cr.checkVideoContentType(mContentType);
198     }
199 
200     @Override
isPlayable()201     protected boolean isPlayable() {
202         return true;
203     }
204 
loadThumbnailBitmap(ItemLoadedCallback callback)205     public ItemLoadedFuture loadThumbnailBitmap(ItemLoadedCallback callback) {
206         ThumbnailManager thumbnailManager = MmsApp.getApplication().getThumbnailManager();
207         mItemLoadedFuture = thumbnailManager.getVideoThumbnail(getUri(), callback);
208         return mItemLoadedFuture;
209     }
210 
cancelThumbnailLoading()211     public void cancelThumbnailLoading() {
212         if (mItemLoadedFuture != null && !mItemLoadedFuture.isDone()) {
213             if (Log.isLoggable(LogTag.APP, Log.DEBUG)) {
214                 Log.v(TAG, "cancelThumbnailLoading for: " + this);
215             }
216             mItemLoadedFuture.cancel(getUri());
217             mItemLoadedFuture = null;
218         }
219     }
220 }
221