Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 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 MPEG4_EXTRACTOR_H_ |
| 18 | |
| 19 | #define MPEG4_EXTRACTOR_H_ |
| 20 | |
| 21 | #include <media/stagefright/MediaExtractor.h> |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 22 | #include <utils/Vector.h> |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 23 | |
| 24 | namespace android { |
| 25 | |
Andreas Huber | efdd088 | 2010-08-25 11:09:41 -0700 | [diff] [blame] | 26 | struct AMessage; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 27 | class DataSource; |
| 28 | class SampleTable; |
| 29 | class String8; |
| 30 | |
| 31 | class MPEG4Extractor : public MediaExtractor { |
| 32 | public: |
| 33 | // Extractor assumes ownership of "source". |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 34 | MPEG4Extractor(const sp<DataSource> &source); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 35 | |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 36 | virtual size_t countTracks(); |
| 37 | virtual sp<MediaSource> getTrack(size_t index); |
| 38 | virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags); |
| 39 | |
| 40 | virtual sp<MetaData> getMetaData(); |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 41 | |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 42 | // for DRM |
| 43 | virtual void setDrmFlag(bool flag); |
| 44 | virtual char* getDrmTrackInfo(size_t trackID, int *len); |
| 45 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 46 | protected: |
| 47 | virtual ~MPEG4Extractor(); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 48 | |
| 49 | private: |
| 50 | struct Track { |
| 51 | Track *next; |
| 52 | sp<MetaData> meta; |
| 53 | uint32_t timescale; |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 54 | sp<SampleTable> sampleTable; |
Andreas Huber | e981c33 | 2009-10-22 13:49:30 -0700 | [diff] [blame] | 55 | bool includes_expensive_metadata; |
Andreas Huber | 4d60fc5 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 56 | bool skipTrack; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 57 | }; |
| 58 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 59 | sp<DataSource> mDataSource; |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 60 | status_t mInitCheck; |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 61 | bool mHasVideo; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 62 | |
| 63 | Track *mFirstTrack, *mLastTrack; |
| 64 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 65 | sp<MetaData> mFileMetaData; |
| 66 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 67 | Vector<uint32_t> mPath; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 68 | |
| 69 | status_t readMetaData(); |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 70 | status_t parseChunk(off64_t *offset, int depth); |
| 71 | status_t parseMetaData(off64_t offset, size_t size); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 72 | |
Andreas Huber | d231596 | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 73 | status_t updateAudioTrackInfoFromESDS_MPEG4Audio( |
| 74 | const void *esds_data, size_t esds_size); |
| 75 | |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 76 | static status_t verifyTrack(Track *track); |
| 77 | |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 78 | struct SINF { |
| 79 | SINF *next; |
| 80 | uint16_t trackID; |
| 81 | uint8_t IPMPDescriptorID; |
| 82 | ssize_t len; |
| 83 | char *IPMPData; |
| 84 | }; |
| 85 | |
| 86 | SINF *mFirstSINF; |
| 87 | |
| 88 | bool mIsDrm; |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 89 | status_t parseDrmSINF(off64_t *offset, off64_t data_offset); |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 90 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 91 | status_t parseTrackHeader(off64_t data_offset, off64_t data_size); |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 92 | |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 93 | Track *findTrackByMimePrefix(const char *mimePrefix); |
| 94 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 95 | MPEG4Extractor(const MPEG4Extractor &); |
| 96 | MPEG4Extractor &operator=(const MPEG4Extractor &); |
| 97 | }; |
| 98 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 99 | bool SniffMPEG4( |
Andreas Huber | efdd088 | 2010-08-25 11:09:41 -0700 | [diff] [blame] | 100 | const sp<DataSource> &source, String8 *mimeType, float *confidence, |
| 101 | sp<AMessage> *); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 102 | |
| 103 | } // namespace android |
| 104 | |
| 105 | #endif // MPEG4_EXTRACTOR_H_ |