Home | History | Annotate | Download | only in include
      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 {
     27     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:
     37     virtual ~MP3Seeker() {}
     38 
     39 private:
     40     DISALLOW_EVIL_CONSTRUCTORS(MP3Seeker);
     41 };
     42 
     43 }  // namespace android
     44 
     45 #endif  // MP3_SEEKER_H_
     46 
     47