MPEG4Extractor.h revision 5a1c3529e4fa2f8a11054181294e0ce79fff8dd3
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 MPEG4_EXTRACTOR_H_ 1820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#define MPEG4_EXTRACTOR_H_ 2020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <media/stagefright/MediaExtractor.h> 2272b8c5ae6a5f97a4fcfc6d23d33159d6ae50179cAndreas Huber#include <utils/Vector.h> 2320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2420111aa043c5f404472bc63b90bc5aad906b1101Andreas Hubernamespace android { 2520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 265a1c3529e4fa2f8a11054181294e0ce79fff8dd3Andreas Huberstruct AMessage; 2720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass DataSource; 2820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass SampleTable; 2920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass String8; 3020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass MPEG4Extractor : public MediaExtractor { 3220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberpublic: 3320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Extractor assumes ownership of "source". 34693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber MPEG4Extractor(const sp<DataSource> &source); 3520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 367be6407f2ad7f2b0782d195d9f792072c084d6f5Andreas Huber virtual size_t countTracks(); 377be6407f2ad7f2b0782d195d9f792072c084d6f5Andreas Huber virtual sp<MediaSource> getTrack(size_t index); 387be6407f2ad7f2b0782d195d9f792072c084d6f5Andreas Huber virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags); 397be6407f2ad7f2b0782d195d9f792072c084d6f5Andreas Huber 407be6407f2ad7f2b0782d195d9f792072c084d6f5Andreas Huber virtual sp<MetaData> getMetaData(); 41693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber 42693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huberprotected: 43693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber virtual ~MPEG4Extractor(); 4420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberprivate: 4620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber struct Track { 4720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Track *next; 4820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber sp<MetaData> meta; 4920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint32_t timescale; 50693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber sp<SampleTable> sampleTable; 517e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber bool includes_expensive_metadata; 526f3a0c2dcb8d37d34e29e6a02acf1e3f8596088cAndreas Huber bool skipTrack; 5320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber }; 5420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 55693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber sp<DataSource> mDataSource; 5620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber bool mHaveMetadata; 577be6407f2ad7f2b0782d195d9f792072c084d6f5Andreas Huber bool mHasVideo; 5820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Track *mFirstTrack, *mLastTrack; 6020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6172b8c5ae6a5f97a4fcfc6d23d33159d6ae50179cAndreas Huber sp<MetaData> mFileMetaData; 6272b8c5ae6a5f97a4fcfc6d23d33159d6ae50179cAndreas Huber 6372b8c5ae6a5f97a4fcfc6d23d33159d6ae50179cAndreas Huber Vector<uint32_t> mPath; 6420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber status_t readMetaData(); 6620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber status_t parseChunk(off_t *offset, int depth); 6772b8c5ae6a5f97a4fcfc6d23d33159d6ae50179cAndreas Huber status_t parseMetaData(off_t offset, size_t size); 6820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 69ba7c7eeca462614251aec3d27f0f7ff3a83cefa1Andreas Huber status_t updateAudioTrackInfoFromESDS_MPEG4Audio( 70ba7c7eeca462614251aec3d27f0f7ff3a83cefa1Andreas Huber const void *esds_data, size_t esds_size); 71ba7c7eeca462614251aec3d27f0f7ff3a83cefa1Andreas Huber 72bd5d93f21e6f79c6d9ebe9d77542c3090d4a7ff4Andreas Huber static status_t verifyTrack(Track *track); 73bd5d93f21e6f79c6d9ebe9d77542c3090d4a7ff4Andreas Huber 7420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Extractor(const MPEG4Extractor &); 7520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Extractor &operator=(const MPEG4Extractor &); 7620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber}; 7720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 78693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huberbool SniffMPEG4( 795a1c3529e4fa2f8a11054181294e0ce79fff8dd3Andreas Huber const sp<DataSource> &source, String8 *mimeType, float *confidence, 805a1c3529e4fa2f8a11054181294e0ce79fff8dd3Andreas Huber sp<AMessage> *); 8120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 8220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 8320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 8420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#endif // MPEG4_EXTRACTOR_H_ 85