1 /*
2  * Copyright (C) 2010 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 #ifndef MP3_SEEKER_H_
18 
19 #define MP3_SEEKER_H_
20 
21 #include <media/stagefright/foundation/ABase.h>
22 #include <utils/RefBase.h>
23 
24 namespace android {
25 
26 struct MP3Seeker : public RefBase {
MP3SeekerMP3Seeker27     MP3Seeker() {}
28 
29     virtual bool getDuration(int64_t *durationUs) = 0;
30 
31     // Given a request seek time in "*timeUs", find the byte offset closest
32     // to that position and return it in "*pos". Update "*timeUs" to reflect
33     // the actual time that seekpoint represents.
34     virtual bool getOffsetForTime(int64_t *timeUs, off64_t *pos) = 0;
35 
36 protected:
~MP3SeekerMP3Seeker37     virtual ~MP3Seeker() {}
38 
39 private:
40     DISALLOW_EVIL_CONSTRUCTORS(MP3Seeker);
41 };
42 
43 }  // namespace android
44 
45 #endif  // MP3_SEEKER_H_
46 
47