MP3Extractor.h revision ac6e6569f08911df9d5c96285cf15325cbbf0340
120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber/* 220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Copyright (C) 2009 The Android Open Source Project 320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * you may not use this file except in compliance with the License. 620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * You may obtain a copy of the License at 720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 1020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Unless required by applicable law or agreed to in writing, software 1120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 1220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * See the License for the specific language governing permissions and 1420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * limitations under the License. 1520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber */ 1620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#ifndef MP3_EXTRACTOR_H_ 1820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#define MP3_EXTRACTOR_H_ 2020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <media/stagefright/MediaExtractor.h> 2220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2320111aa043c5f404472bc63b90bc5aad906b1101Andreas Hubernamespace android { 2420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass DataSource; 2620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass String8; 2720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass MP3Extractor : public MediaExtractor { 2920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberpublic: 3020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Extractor assumes ownership of "source". 31693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber MP3Extractor(const sp<DataSource> &source); 3220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 33f75978f63a25e79c683e96611f95cb5cd49efd3dAndreas Huber virtual size_t countTracks(); 34f75978f63a25e79c683e96611f95cb5cd49efd3dAndreas Huber virtual sp<MediaSource> getTrack(size_t index); 357e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags); 3620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 37693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huberprotected: 38693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber virtual ~MP3Extractor(); 3920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberprivate: 41693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber sp<DataSource> mDataSource; 4220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber off_t mFirstFramePos; 4320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber sp<MetaData> mMeta; 4420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint32_t mFixedHeader; 45ac6e6569f08911df9d5c96285cf15325cbbf0340Gloria Wang int32_t mByteNumber; // total number of bytes in this MP3 46ac6e6569f08911df9d5c96285cf15325cbbf0340Gloria Wang char mTableOfContents[99]; // TOC entries in XING header 4720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MP3Extractor(const MP3Extractor &); 4920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MP3Extractor &operator=(const MP3Extractor &); 5020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber}; 5120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 52693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huberbool SniffMP3( 53693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber const sp<DataSource> &source, String8 *mimeType, float *confidence); 5420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 5620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#endif // MP3_EXTRACTOR_H_ 58