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
