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      1 /*
      2  * Copyright (C) 2006 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 
     17 package android.graphics;
     18 
     19 import java.io.InputStream;
     20 import java.io.FileInputStream;
     21 
     22 public class Movie {
     23     private final int mNativeMovie;
     24 
     25     private Movie(int nativeMovie) {
     26         if (nativeMovie == 0) {
     27             throw new RuntimeException("native movie creation failed");
     28         }
     29         mNativeMovie = nativeMovie;
     30     }
     31 
     32     public native int width();
     33     public native int height();
     34     public native boolean isOpaque();
     35     public native int duration();
     36 
     37     public native boolean setTime(int relativeMilliseconds);
     38 
     39     public native void draw(Canvas canvas, float x, float y, Paint paint);
     40 
     41     public void draw(Canvas canvas, float x, float y) {
     42         draw(canvas, x, y, null);
     43     }
     44 
     45     public static native Movie decodeStream(InputStream is);
     46     public static native Movie decodeByteArray(byte[] data, int offset,
     47                                                int length);
     48 
     49     private static native void nativeDestructor(int nativeMovie);
     50 
     51     public static Movie decodeFile(String pathName) {
     52         InputStream is;
     53         try {
     54             is = new FileInputStream(pathName);
     55         }
     56         catch (java.io.FileNotFoundException e) {
     57             return null;
     58         }
     59         return decodeTempStream(is);
     60     }
     61 
     62     @Override
     63     protected void finalize() throws Throwable {
     64         try {
     65             nativeDestructor(mNativeMovie);
     66         } finally {
     67             super.finalize();
     68         }
     69     }
     70 
     71     private static Movie decodeTempStream(InputStream is) {
     72         Movie moov = null;
     73         try {
     74             moov = decodeStream(is);
     75             is.close();
     76         }
     77         catch (java.io.IOException e) {
     78             /*  do nothing.
     79                 If the exception happened on open, moov will be null.
     80                 If it happened on close, moov is still valid.
     81             */
     82         }
     83         return moov;
     84     }
     85 }
     86