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      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 com.android.mms.ContentRestrictionException;
     21 import com.android.mms.LogTag;
     22 import com.android.mms.dom.events.EventImpl;
     23 import com.android.mms.dom.smil.SmilMediaElementImpl;
     24 import com.android.mms.drm.DrmWrapper;
     25 import com.google.android.mms.MmsException;
     26 import android.database.sqlite.SqliteWrapper;
     27 
     28 import org.w3c.dom.events.Event;
     29 import org.w3c.dom.smil.ElementTime;
     30 
     31 import android.content.ContentResolver;
     32 import android.content.Context;
     33 import android.database.Cursor;
     34 import android.net.Uri;
     35 import android.provider.MediaStore.Images;
     36 import android.text.TextUtils;
     37 import android.util.Config;
     38 import android.util.Log;
     39 
     40 import java.io.IOException;
     41 
     42 public class VideoModel extends RegionMediaModel {
     43     private static final String TAG = MediaModel.TAG;
     44     private static final boolean DEBUG = true;
     45     private static final boolean LOCAL_LOGV = DEBUG ? Config.LOGD : Config.LOGV;
     46 
     47     public VideoModel(Context context, Uri uri, RegionModel region)
     48             throws MmsException {
     49         this(context, null, null, uri, region);
     50         initModelFromUri(uri);
     51         checkContentRestriction();
     52     }
     53 
     54     public VideoModel(Context context, String contentType, String src,
     55             Uri uri, RegionModel region) throws MmsException {
     56         super(context, SmilHelper.ELEMENT_TAG_VIDEO, contentType, src, uri, region);
     57     }
     58 
     59     public VideoModel(Context context, String contentType, String src,
     60             DrmWrapper wrapper, RegionModel regionModel) throws IOException {
     61         super(context, SmilHelper.ELEMENT_TAG_VIDEO, contentType, src, wrapper, regionModel);
     62     }
     63 
     64     private void initModelFromUri(Uri uri) throws MmsException {
     65         ContentResolver cr = mContext.getContentResolver();
     66         Cursor c = SqliteWrapper.query(mContext, cr, uri, null, null, null, null);
     67 
     68         if (c != null) {
     69             try {
     70                 if (c.moveToFirst()) {
     71                     String path = c.getString(c.getColumnIndexOrThrow(Images.Media.DATA));
     72                     mSrc = path.substring(path.lastIndexOf('/') + 1);
     73                     mContentType = c.getString(c.getColumnIndexOrThrow(
     74                             Images.Media.MIME_TYPE));
     75                     if (TextUtils.isEmpty(mContentType)) {
     76                         throw new MmsException("Type of media is unknown.");
     77                     }
     78 
     79                     if (Log.isLoggable(LogTag.APP, Log.VERBOSE)) {
     80                         Log.v(TAG, "New VideoModel created:"
     81                                 + " mSrc=" + mSrc
     82                                 + " mContentType=" + mContentType
     83                                 + " mUri=" + uri);
     84                     }
     85                 } else {
     86                     throw new MmsException("Nothing found: " + uri);
     87                 }
     88             } finally {
     89                 c.close();
     90             }
     91         } else {
     92             throw new MmsException("Bad URI: " + uri);
     93         }
     94 
     95         initMediaDuration();
     96     }
     97 
     98     // EventListener Interface
     99     public void handleEvent(Event evt) {
    100         String evtType = evt.getType();
    101         if (LOCAL_LOGV || Log.isLoggable(LogTag.APP, Log.VERBOSE)) {
    102             Log.v(TAG, "[VideoModel] handleEvent " + evt.getType() + " on " + this);
    103         }
    104 
    105         MediaAction action = MediaAction.NO_ACTIVE_ACTION;
    106         if (evtType.equals(SmilMediaElementImpl.SMIL_MEDIA_START_EVENT)) {
    107             action = MediaAction.START;
    108 
    109             // if the Music player app is playing audio, we should pause that so it won't
    110             // interfere with us playing video here.
    111             pauseMusicPlayer();
    112 
    113             mVisible = true;
    114         } else if (evtType.equals(SmilMediaElementImpl.SMIL_MEDIA_END_EVENT)) {
    115             action = MediaAction.STOP;
    116             if (mFill != ElementTime.FILL_FREEZE) {
    117                 mVisible = false;
    118             }
    119         } else if (evtType.equals(SmilMediaElementImpl.SMIL_MEDIA_PAUSE_EVENT)) {
    120             action = MediaAction.PAUSE;
    121             mVisible = true;
    122         } else if (evtType.equals(SmilMediaElementImpl.SMIL_MEDIA_SEEK_EVENT)) {
    123             action = MediaAction.SEEK;
    124             mSeekTo = ((EventImpl) evt).getSeekTo();
    125             mVisible = true;
    126         }
    127 
    128         appendAction(action);
    129         notifyModelChanged(false);
    130     }
    131 
    132     protected void checkContentRestriction() throws ContentRestrictionException {
    133         ContentRestriction cr = ContentRestrictionFactory.getContentRestriction();
    134         cr.checkVideoContentType(mContentType);
    135     }
    136 
    137     @Override
    138     protected boolean isPlayable() {
    139         return true;
    140     }
    141 }
    142