XINGSeeker.h revision 5102400104ce1f0a6de7bf913381a91e4f18a22a
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 XING_SEEKER_H_ 18 19#define XING_SEEKER_H_ 20 21#include "include/MP3Seeker.h" 22 23namespace android { 24 25struct DataSource; 26 27struct XINGSeeker : public MP3Seeker { 28 static sp<XINGSeeker> CreateFromSource( 29 const sp<DataSource> &source, off64_t first_frame_pos); 30 31 virtual bool getDuration(int64_t *durationUs); 32 virtual bool getOffsetForTime(int64_t *timeUs, off64_t *pos); 33 34private: 35 int64_t mFirstFramePos; 36 int64_t mDurationUs; 37 int32_t mSizeBytes; 38 39 // TOC entries in XING header. Skip the first one since it's always 0. 40 unsigned char mTOC[99]; 41 bool mTOCValid; 42 43 XINGSeeker(); 44 45 DISALLOW_EVIL_CONSTRUCTORS(XINGSeeker); 46}; 47 48} // namespace android 49 50#endif // XING_SEEKER_H_ 51 52