| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef SAMPLE_TABLE_H_ |
| |
| #define SAMPLE_TABLE_H_ |
| |
| #include <sys/types.h> |
| #include <stdint.h> |
| |
| #include <media/stagefright/MediaErrors.h> |
| #include <utils/RefBase.h> |
| #include <utils/threads.h> |
| |
| namespace android { |
| |
| class DataSource; |
| struct SampleIterator; |
| |
| class SampleTable : public RefBase { |
| public: |
| SampleTable(const sp<DataSource> &source); |
| |
| bool isValid() const; |
| |
| // type can be 'stco' or 'co64'. |
| status_t setChunkOffsetParams( |
| uint32_t type, off64_t data_offset, size_t data_size); |
| |
| status_t setSampleToChunkParams(off64_t data_offset, size_t data_size); |
| |
| // type can be 'stsz' or 'stz2'. |
| status_t setSampleSizeParams( |
| uint32_t type, off64_t data_offset, size_t data_size); |
| |
| status_t setTimeToSampleParams(off64_t data_offset, size_t data_size); |
| |
| status_t setCompositionTimeToSampleParams( |
| off64_t data_offset, size_t data_size); |
| |
| status_t setSyncSampleParams(off64_t data_offset, size_t data_size); |
| |
| //////////////////////////////////////////////////////////////////////////// |
| |
| uint32_t countChunkOffsets() const; |
| |
| uint32_t countSamples() const; |
| |
| status_t getMaxSampleSize(size_t *size); |
| |
| status_t getMetaDataForSample( |
| uint32_t sampleIndex, |
| off64_t *offset, |
| size_t *size, |
| uint32_t *compositionTime, |
| bool *isSyncSample = NULL); |
| |
| enum { |
| kFlagBefore, |
| kFlagAfter, |
| kFlagClosest |
| }; |
| status_t findSampleAtTime( |
| uint32_t req_time, uint32_t *sample_index, uint32_t flags); |
| |
| status_t findSyncSampleNear( |
| uint32_t start_sample_index, uint32_t *sample_index, |
| uint32_t flags); |
| |
| status_t findThumbnailSample(uint32_t *sample_index); |
| |
| protected: |
| ~SampleTable(); |
| |
| private: |
| static const uint32_t kChunkOffsetType32; |
| static const uint32_t kChunkOffsetType64; |
| static const uint32_t kSampleSizeType32; |
| static const uint32_t kSampleSizeTypeCompact; |
| |
| sp<DataSource> mDataSource; |
| Mutex mLock; |
| |
| off64_t mChunkOffsetOffset; |
| uint32_t mChunkOffsetType; |
| uint32_t mNumChunkOffsets; |
| |
| off64_t mSampleToChunkOffset; |
| uint32_t mNumSampleToChunkOffsets; |
| |
| off64_t mSampleSizeOffset; |
| uint32_t mSampleSizeFieldSize; |
| uint32_t mDefaultSampleSize; |
| uint32_t mNumSampleSizes; |
| |
| uint32_t mTimeToSampleCount; |
| uint32_t *mTimeToSample; |
| |
| struct SampleTimeEntry { |
| uint32_t mSampleIndex; |
| uint32_t mCompositionTime; |
| }; |
| SampleTimeEntry *mSampleTimeEntries; |
| |
| uint32_t *mCompositionTimeDeltaEntries; |
| size_t mNumCompositionTimeDeltaEntries; |
| |
| off64_t mSyncSampleOffset; |
| uint32_t mNumSyncSamples; |
| uint32_t *mSyncSamples; |
| size_t mLastSyncSampleIndex; |
| |
| SampleIterator *mSampleIterator; |
| |
| struct SampleToChunkEntry { |
| uint32_t startChunk; |
| uint32_t samplesPerChunk; |
| uint32_t chunkDesc; |
| }; |
| SampleToChunkEntry *mSampleToChunkEntries; |
| |
| friend struct SampleIterator; |
| |
| status_t getSampleSize_l(uint32_t sample_index, size_t *sample_size); |
| |
| uint32_t getCompositionTimeOffset(uint32_t sampleIndex) const; |
| |
| static int CompareIncreasingTime(const void *, const void *); |
| |
| void buildSampleEntriesTable(); |
| |
| SampleTable(const SampleTable &); |
| SampleTable &operator=(const SampleTable &); |
| }; |
| |
| } // namespace android |
| |
| #endif // SAMPLE_TABLE_H_ |