1 /*
2  * Copyright 2011 Sebastian Annies, Hamburg
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 package com.googlecode.mp4parser.srt;
17 
18 import com.googlecode.mp4parser.authoring.tracks.TextTrackImpl;
19 
20 import java.io.IOException;
21 import java.io.InputStream;
22 import java.io.InputStreamReader;
23 import java.io.LineNumberReader;
24 
25 /**
26  * Parses a .srt file and creates a Track for it.
27  */
28 public class SrtParser {
parse(InputStream is)29     public static TextTrackImpl parse(InputStream is) throws IOException {
30         LineNumberReader r = new LineNumberReader(new InputStreamReader(is, "UTF-8"));
31         TextTrackImpl track = new TextTrackImpl();
32         String numberString;
33         while ((numberString = r.readLine()) != null) {
34             String timeString = r.readLine();
35             String lineString = "";
36             String s;
37             while (!((s = r.readLine()) == null || s.trim().equals(""))) {
38                 lineString += s + "\n";
39             }
40 
41             long startTime = parse(timeString.split("-->")[0]);
42             long endTime = parse(timeString.split("-->")[1]);
43 
44             track.getSubs().add(new TextTrackImpl.Line(startTime, endTime, lineString));
45 
46         }
47         return track;
48     }
49 
parse(String in)50     private static long parse(String in) {
51         long hours = Long.parseLong(in.split(":")[0].trim());
52         long minutes = Long.parseLong(in.split(":")[1].trim());
53         long seconds = Long.parseLong(in.split(":")[2].split(",")[0].trim());
54         long millies = Long.parseLong(in.split(":")[2].split(",")[1].trim());
55 
56         return hours * 60 * 60 * 1000 + minutes * 60 * 1000 + seconds * 1000 + millies;
57 
58     }
59 }
60