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Diffstat (limited to 'media/libstagefright/include/SampleIterator.h')
-rw-r--r-- | media/libstagefright/include/SampleIterator.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/media/libstagefright/include/SampleIterator.h b/media/libstagefright/include/SampleIterator.h new file mode 100644 index 0000000..b5a043c --- /dev/null +++ b/media/libstagefright/include/SampleIterator.h @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2010 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. + */ + +#include <utils/Vector.h> + +namespace android { + +struct SampleTable; + +struct SampleIterator { + SampleIterator(SampleTable *table); + + status_t seekTo(uint32_t sampleIndex); + + uint32_t getChunkIndex() const { return mCurrentChunkIndex; } + uint32_t getDescIndex() const { return mChunkDesc; } + off64_t getSampleOffset() const { return mCurrentSampleOffset; } + size_t getSampleSize() const { return mCurrentSampleSize; } + uint32_t getSampleTime() const { return mCurrentSampleTime; } + + status_t getSampleSizeDirect( + uint32_t sampleIndex, size_t *size); + +private: + SampleTable *mTable; + + bool mInitialized; + + uint32_t mSampleToChunkIndex; + uint32_t mFirstChunk; + uint32_t mFirstChunkSampleIndex; + uint32_t mStopChunk; + uint32_t mStopChunkSampleIndex; + uint32_t mSamplesPerChunk; + uint32_t mChunkDesc; + + uint32_t mCurrentChunkIndex; + off64_t mCurrentChunkOffset; + Vector<size_t> mCurrentChunkSampleSizes; + + uint32_t mTimeToSampleIndex; + uint32_t mTTSSampleIndex; + uint32_t mTTSSampleTime; + uint32_t mTTSCount; + uint32_t mTTSDuration; + + uint32_t mCurrentSampleIndex; + off64_t mCurrentSampleOffset; + size_t mCurrentSampleSize; + uint32_t mCurrentSampleTime; + + void reset(); + status_t findChunkRange(uint32_t sampleIndex); + status_t getChunkOffset(uint32_t chunk, off64_t *offset); + status_t findSampleTime(uint32_t sampleIndex, uint32_t *time); + + SampleIterator(const SampleIterator &); + SampleIterator &operator=(const SampleIterator &); +}; + +} // namespace android + |