SampleTable.cpp revision a9660fe122ca382e1777e0c5d3c42ca67ffb0377
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#define LOG_TAG "SampleTable" 18c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber//#define LOG_NDEBUG 0 1920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <utils/Log.h> 2020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2189e69da4d86348409994c9dafbbb2634ccd7c196Andreas Huber#include "include/SampleTable.h" 22c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber#include "include/SampleIterator.h" 2389e69da4d86348409994c9dafbbb2634ccd7c196Andreas Huber 2420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <arpa/inet.h> 2520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber#include <media/stagefright/foundation/ADebug.h> 2720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <media/stagefright/DataSource.h> 2820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <media/stagefright/Utils.h> 2920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3020111aa043c5f404472bc63b90bc5aad906b1101Andreas Hubernamespace android { 3120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 32c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber// static 33c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberconst uint32_t SampleTable::kChunkOffsetType32 = FOURCC('s', 't', 'c', 'o'); 34c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber// static 35c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberconst uint32_t SampleTable::kChunkOffsetType64 = FOURCC('c', 'o', '6', '4'); 36c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber// static 37c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberconst uint32_t SampleTable::kSampleSizeType32 = FOURCC('s', 't', 's', 'z'); 38c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber// static 39c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberconst uint32_t SampleTable::kSampleSizeTypeCompact = FOURCC('s', 't', 'z', '2'); 40c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 41c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber//////////////////////////////////////////////////////////////////////////////// 4220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 43f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kimconst off64_t kMaxOffset = INT64_MAX; 44f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim 4589aa8fe4cb00d2f24260005b008602232d678684Andreas Huberstruct SampleTable::CompositionDeltaLookup { 4689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber CompositionDeltaLookup(); 4789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 4889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber void setEntries( 4989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *deltaEntries, size_t numDeltaEntries); 5089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t getCompositionTimeOffset(uint32_t sampleIndex); 5289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5389aa8fe4cb00d2f24260005b008602232d678684Andreas Huberprivate: 5489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex mLock; 5589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *mDeltaEntries; 5789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mNumDeltaEntries; 5889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mCurrentDeltaEntry; 6089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mCurrentEntrySampleIndex; 6189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 6289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(CompositionDeltaLookup); 6389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber}; 6489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 6589aa8fe4cb00d2f24260005b008602232d678684Andreas HuberSampleTable::CompositionDeltaLookup::CompositionDeltaLookup() 6689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber : mDeltaEntries(NULL), 6789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mNumDeltaEntries(0), 6889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry(0), 6989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex(0) { 7089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 7189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 7289aa8fe4cb00d2f24260005b008602232d678684Andreas Hubervoid SampleTable::CompositionDeltaLookup::setEntries( 7389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *deltaEntries, size_t numDeltaEntries) { 7489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex::Autolock autolock(mLock); 7589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 7689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mDeltaEntries = deltaEntries; 7789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mNumDeltaEntries = numDeltaEntries; 7889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry = 0; 7989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex = 0; 8089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 8189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 8289aa8fe4cb00d2f24260005b008602232d678684Andreas Huberuint32_t SampleTable::CompositionDeltaLookup::getCompositionTimeOffset( 8389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t sampleIndex) { 8489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex::Autolock autolock(mLock); 8589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 8689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (mDeltaEntries == NULL) { 8789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return 0; 8889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 8989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 9089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (sampleIndex < mCurrentEntrySampleIndex) { 9189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry = 0; 9289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex = 0; 9389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 9489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 9589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber while (mCurrentDeltaEntry < mNumDeltaEntries) { 9689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t sampleCount = mDeltaEntries[2 * mCurrentDeltaEntry]; 9789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (sampleIndex < mCurrentEntrySampleIndex + sampleCount) { 9889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return mDeltaEntries[2 * mCurrentDeltaEntry + 1]; 9989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 10089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 10189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex += sampleCount; 10289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber ++mCurrentDeltaEntry; 10389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 10489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 10589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return 0; 10689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 10789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 10889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber//////////////////////////////////////////////////////////////////////////////// 10989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 110693d271e62a3726689ff68f4505ba49228eb94b2Andreas HuberSampleTable::SampleTable(const sp<DataSource> &source) 11120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber : mDataSource(source), 11220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetOffset(-1), 11320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetType(0), 11420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumChunkOffsets(0), 11520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleToChunkOffset(-1), 11620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleToChunkOffsets(0), 11720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeOffset(-1), 11820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeFieldSize(0), 11920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize(0), 12020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleSizes(0), 12170dec4dc7d1d813afaff58fb26b0fd7127e897bfPawin Vongmasa mHasTimeToSample(false), 12220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSampleCount(0), 123583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTimeToSample(NULL), 1244678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries(NULL), 1254931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries(NULL), 1264931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mNumCompositionTimeDeltaEntries(0), 12789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup(new CompositionDeltaLookup), 12820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSyncSampleOffset(-1), 129c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mNumSyncSamples(0), 1308bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples(NULL), 1318bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mLastSyncSampleIndex(0), 132583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mSampleToChunkEntries(NULL), 133583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTotalSize(0) { 134c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleIterator = new SampleIterator(this); 13520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 13620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 13720111aa043c5f404472bc63b90bc5aad906b1101Andreas HuberSampleTable::~SampleTable() { 138c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber delete[] mSampleToChunkEntries; 139c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries = NULL; 140c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 1418bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber delete[] mSyncSamples; 1428bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples = NULL; 1438bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 144583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa delete[] mTimeToSample; 145583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTimeToSample = NULL; 146583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 14789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber delete mCompositionDeltaLookup; 14889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup = NULL; 14989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 1504931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber delete[] mCompositionTimeDeltaEntries; 1514931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries = NULL; 1524931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 1534678a6dc5f09008481524949a9667af5a6190374Andreas Huber delete[] mSampleTimeEntries; 1544678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries = NULL; 1554678a6dc5f09008481524949a9667af5a6190374Andreas Huber 156c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber delete mSampleIterator; 157c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleIterator = NULL; 15820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 15920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 160169c286ed166499c5099d2b336967e0bf3d25551Andreas Huberbool SampleTable::isValid() const { 161169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber return mChunkOffsetOffset >= 0 162169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber && mSampleToChunkOffset >= 0 163169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber && mSampleSizeOffset >= 0 16470dec4dc7d1d813afaff58fb26b0fd7127e897bfPawin Vongmasa && mHasTimeToSample; 165169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber} 166169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber 16720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setChunkOffsetParams( 168c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong uint32_t type, off64_t data_offset, size_t data_size) { 16920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mChunkOffsetOffset >= 0) { 17020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 17120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 17220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1730c89199745bc1bf05b997fc7c342017807676b6fAndreas Huber CHECK(type == kChunkOffsetType32 || type == kChunkOffsetType64); 17420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 17520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetOffset = data_offset; 17620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetType = type; 17720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 17820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8) { 17920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 18020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 18120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 18220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 18334769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 18420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 18520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 18620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 18720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 18820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 18920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 19020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 19120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 19220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 19320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumChunkOffsets = U32_AT(&header[4]); 19420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 19520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mChunkOffsetType == kChunkOffsetType32) { 19620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8 + mNumChunkOffsets * 4) { 19720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 19820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 19920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } else { 20020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8 + mNumChunkOffsets * 8) { 20120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 20220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 20320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 20420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 20520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 20620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 20720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 20820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setSampleToChunkParams( 209c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t data_offset, size_t data_size) { 21020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleToChunkOffset >= 0) { 21120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 21220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 21320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 21420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleToChunkOffset = data_offset; 21520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 21620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8) { 21720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 21820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 21920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 22020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 22134769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 22220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 22320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 22420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 22520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 22620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 22720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 22820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 22920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 23020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 23120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleToChunkOffsets = U32_AT(&header[4]); 23220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 233f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim if ((data_size - 8) / sizeof(SampleToChunkEntry) < mNumSampleToChunkOffsets) { 23420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 23520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 23620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 237f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim if ((uint64_t)kMaxTotalSize / sizeof(SampleToChunkEntry) <= 238583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (uint64_t)mNumSampleToChunkOffsets) { 239583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Sample-to-chunk table size too large."); 2405c134e6b2047b10877f02a46f4bb293537269f00Joshua J. Drake return ERROR_OUT_OF_RANGE; 241583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 242583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 243583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTotalSize += (uint64_t)mNumSampleToChunkOffsets * 244583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa sizeof(SampleToChunkEntry); 245583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (mTotalSize > kMaxTotalSize) { 246583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Sample-to-chunk table size would make sample table too large.\n" 247583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Requested sample-to-chunk table size = %llu\n" 248583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Eventual sample table size >= %llu\n" 249583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Allowed sample table size = %llu\n", 250583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mNumSampleToChunkOffsets * 251583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa sizeof(SampleToChunkEntry), 252583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mTotalSize, 253583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)kMaxTotalSize); 254583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 255583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 2565c134e6b2047b10877f02a46f4bb293537269f00Joshua J. Drake 257c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries = 258583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa new (std::nothrow) SampleToChunkEntry[mNumSampleToChunkOffsets]; 259583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (!mSampleToChunkEntries) { 260583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Cannot allocate sample-to-chunk table with %llu entries.", 261583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mNumSampleToChunkOffsets); 262583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 263583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 264583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 265583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (mNumSampleToChunkOffsets == 0) { 266583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return OK; 267583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 268583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 269f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim if ((off64_t)(kMaxOffset - 8 - 270583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ((mNumSampleToChunkOffsets - 1) * sizeof(SampleToChunkEntry))) 271583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa < mSampleToChunkOffset) { 272583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_MALFORMED; 273583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 274c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 275c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber for (uint32_t i = 0; i < mNumSampleToChunkOffsets; ++i) { 276f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim uint8_t buffer[sizeof(SampleToChunkEntry)]; 277f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim 278c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (mDataSource->readAt( 279f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim mSampleToChunkOffset + 8 + i * sizeof(SampleToChunkEntry), 280f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim buffer, 281f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim sizeof(buffer)) 282c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber != (ssize_t)sizeof(buffer)) { 283c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return ERROR_IO; 284c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 285583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa // chunk index is 1 based in the spec. 286583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (U32_AT(buffer) < 1) { 287583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("b/23534160"); 288583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 289583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 290c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 291c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber // We want the chunk index to be 0-based. 292c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].startChunk = U32_AT(buffer) - 1; 293c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].samplesPerChunk = U32_AT(&buffer[4]); 294c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].chunkDesc = U32_AT(&buffer[8]); 295c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 296c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 29720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 29820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 29920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 30020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setSampleSizeParams( 301c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong uint32_t type, off64_t data_offset, size_t data_size) { 30220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleSizeOffset >= 0) { 30320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 30420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 30520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3060c89199745bc1bf05b997fc7c342017807676b6fAndreas Huber CHECK(type == kSampleSizeType32 || type == kSampleSizeTypeCompact); 30720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 30820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeOffset = data_offset; 30920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 31020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12) { 31120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 31220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 31320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 31420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[12]; 31534769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 31620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 31720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 31820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 31920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 32020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 32120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 32220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 32320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 32420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 32520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize = U32_AT(&header[4]); 32620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleSizes = U32_AT(&header[8]); 3275a132594b531f1f48098a790927f82080cc27f61Wei Jia if (mNumSampleSizes > (UINT32_MAX - 12) / 16) { 328c27cee30d9359fa83e33b4f87f88e6bb9ef66341Wei Jia ALOGE("b/23247055, mNumSampleSizes(%u)", mNumSampleSizes); 3295a132594b531f1f48098a790927f82080cc27f61Wei Jia return ERROR_MALFORMED; 3305a132594b531f1f48098a790927f82080cc27f61Wei Jia } 33120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 33220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (type == kSampleSizeType32) { 33320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeFieldSize = 32; 33420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 33520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mDefaultSampleSize != 0) { 33620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 33720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 33820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 33920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12 + mNumSampleSizes * 4) { 34020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 34120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 34220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } else { 34320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if ((mDefaultSampleSize & 0xffffff00) != 0) { 34420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // The high 24 bits are reserved and must be 0. 34520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 34620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 34720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3489f753df58a70f20db220af31cb202bbd21b30f36Andreas Huber mSampleSizeFieldSize = mDefaultSampleSize & 0xff; 34920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize = 0; 35020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 35120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleSizeFieldSize != 4 && mSampleSizeFieldSize != 8 35220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber && mSampleSizeFieldSize != 16) { 35320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 35420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 35520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 35620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12 + (mNumSampleSizes * mSampleSizeFieldSize + 4) / 8) { 35720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 35820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 35920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 36020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 36120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 36220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 36320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 36420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setTimeToSampleParams( 365c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t data_offset, size_t data_size) { 36670dec4dc7d1d813afaff58fb26b0fd7127e897bfPawin Vongmasa if (mHasTimeToSample || data_size < 8) { 36720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 36820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 36920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 37020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 37134769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 37220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 37320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 37420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 37520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 37620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 37720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 37820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 37920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 38020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 38120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSampleCount = U32_AT(&header[4]); 382f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim if (mTimeToSampleCount > UINT32_MAX / (2 * sizeof(uint32_t))) { 383a3630a418b4f65277a42cd4018cd3b0b7e134d0cPawin Vongmasa // Choose this bound because 384a3630a418b4f65277a42cd4018cd3b0b7e134d0cPawin Vongmasa // 1) 2 * sizeof(uint32_t) is the amount of memory needed for one 385a3630a418b4f65277a42cd4018cd3b0b7e134d0cPawin Vongmasa // time-to-sample entry in the time-to-sample table. 386a3630a418b4f65277a42cd4018cd3b0b7e134d0cPawin Vongmasa // 2) mTimeToSampleCount is the number of entries of the time-to-sample 387a3630a418b4f65277a42cd4018cd3b0b7e134d0cPawin Vongmasa // table. 388a3630a418b4f65277a42cd4018cd3b0b7e134d0cPawin Vongmasa // 3) We hope that the table size does not exceed UINT32_MAX. 389583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Time-to-sample table size too large."); 390edd4a76eb4747bd19ed122df46fa46b452c12a0dRobert Shih return ERROR_OUT_OF_RANGE; 391edd4a76eb4747bd19ed122df46fa46b452c12a0dRobert Shih } 39220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 393a3630a418b4f65277a42cd4018cd3b0b7e134d0cPawin Vongmasa // Note: At this point, we know that mTimeToSampleCount * 2 will not 394a3630a418b4f65277a42cd4018cd3b0b7e134d0cPawin Vongmasa // overflow because of the above condition. 395583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 396583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa uint64_t allocSize = (uint64_t)mTimeToSampleCount * 2 * sizeof(uint32_t); 397583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTotalSize += allocSize; 398583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (mTotalSize > kMaxTotalSize) { 399583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Time-to-sample table size would make sample table too large.\n" 400583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Requested time-to-sample table size = %llu\n" 401583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Eventual sample table size >= %llu\n" 402583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Allowed sample table size = %llu\n", 403583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)allocSize, 404583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mTotalSize, 405583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)kMaxTotalSize); 406583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 407583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 408583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 409583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTimeToSample = new (std::nothrow) uint32_t[mTimeToSampleCount * 2]; 410583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (!mTimeToSample) { 411583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Cannot allocate time-to-sample table with %llu entries.", 412583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mTimeToSampleCount); 413583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 414583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 415583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 416583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (mDataSource->readAt(data_offset + 8, mTimeToSample, 417583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (size_t)allocSize) < (ssize_t)allocSize) { 418583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Incomplete data read for time-to-sample table."); 41920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 42020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 42120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 422583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa for (size_t i = 0; i < mTimeToSampleCount * 2; ++i) { 423583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTimeToSample[i] = ntohl(mTimeToSample[i]); 42420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 42570dec4dc7d1d813afaff58fb26b0fd7127e897bfPawin Vongmasa 42670dec4dc7d1d813afaff58fb26b0fd7127e897bfPawin Vongmasa mHasTimeToSample = true; 42720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 42820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 42920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4304931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huberstatus_t SampleTable::setCompositionTimeToSampleParams( 4314931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber off64_t data_offset, size_t data_size) { 432df64d15042bbd5e0e4933ac49bf3c177dd94752cSteve Block ALOGI("There are reordered frames present."); 4334931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4344931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (mCompositionTimeDeltaEntries != NULL || data_size < 8) { 4354931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 4364931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 4374931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4384931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber uint8_t header[8]; 4394931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (mDataSource->readAt( 4404931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber data_offset, header, sizeof(header)) 4414931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber < (ssize_t)sizeof(header)) { 4424931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_IO; 4434931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 4444931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4454931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (U32_AT(header) != 0) { 4464931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber // Expected version = 0, flags = 0. 4474931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 4484931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 4494931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4504931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber size_t numEntries = U32_AT(&header[4]); 4514931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4524931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (data_size != (numEntries + 1) * 8) { 4534931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 4544931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 4554931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4564931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mNumCompositionTimeDeltaEntries = numEntries; 457738a753a3ca7bf8f9f608ca941575626265294e4Wei Jia uint64_t allocSize = (uint64_t)numEntries * 2 * sizeof(uint32_t); 458f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim if (allocSize > kMaxTotalSize) { 459583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Composition-time-to-sample table size too large."); 460edd4a76eb4747bd19ed122df46fa46b452c12a0dRobert Shih return ERROR_OUT_OF_RANGE; 461edd4a76eb4747bd19ed122df46fa46b452c12a0dRobert Shih } 462edd4a76eb4747bd19ed122df46fa46b452c12a0dRobert Shih 463583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTotalSize += allocSize; 464583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (mTotalSize > kMaxTotalSize) { 465583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Composition-time-to-sample table would make sample table too large.\n" 466583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Requested composition-time-to-sample table size = %llu\n" 467583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Eventual sample table size >= %llu\n" 468583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Allowed sample table size = %llu\n", 469583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)allocSize, 470583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mTotalSize, 471583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)kMaxTotalSize); 472583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 473583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 4744931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 475583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mCompositionTimeDeltaEntries = new (std::nothrow) uint32_t[2 * numEntries]; 476583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (!mCompositionTimeDeltaEntries) { 477583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Cannot allocate composition-time-to-sample table with %llu " 478583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa "entries.", (unsigned long long)numEntries); 479583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 480583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 481583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 482583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (mDataSource->readAt(data_offset + 8, mCompositionTimeDeltaEntries, 483583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (size_t)allocSize) < (ssize_t)allocSize) { 4844931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber delete[] mCompositionTimeDeltaEntries; 4854931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries = NULL; 4864931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4874931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_IO; 4884931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 4894931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4904931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber for (size_t i = 0; i < 2 * numEntries; ++i) { 4914931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries[i] = ntohl(mCompositionTimeDeltaEntries[i]); 4924931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 4934931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 49489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup->setEntries( 49589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionTimeDeltaEntries, mNumCompositionTimeDeltaEntries); 49689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 4974931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return OK; 4984931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber} 4994931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 500c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dongstatus_t SampleTable::setSyncSampleParams(off64_t data_offset, size_t data_size) { 50120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSyncSampleOffset >= 0 || data_size < 8) { 50220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 50320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 50420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 50520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 50634769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 50720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 50820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 50920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 51020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 51120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 51220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 51320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 51420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 51520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 516a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen uint32_t numSyncSamples = U32_AT(&header[4]); 51720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 518a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen if (numSyncSamples < 2) { 5193856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("Table of sync samples is empty or has only a single entry!"); 52020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 5218bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 522a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen uint64_t allocSize = (uint64_t)numSyncSamples * sizeof(uint32_t); 523f4f36a0a313733b191349ac43d7f4d37038569b1Wonsik Kim if (allocSize > kMaxTotalSize) { 524583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Sync sample table size too large."); 525edd4a76eb4747bd19ed122df46fa46b452c12a0dRobert Shih return ERROR_OUT_OF_RANGE; 526edd4a76eb4747bd19ed122df46fa46b452c12a0dRobert Shih } 527edd4a76eb4747bd19ed122df46fa46b452c12a0dRobert Shih 528583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTotalSize += allocSize; 529583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (mTotalSize > kMaxTotalSize) { 530583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Sync sample table size would make sample table too large.\n" 531583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Requested sync sample table size = %llu\n" 532583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Eventual sample table size >= %llu\n" 533583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Allowed sample table size = %llu\n", 534583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)allocSize, 535583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mTotalSize, 536583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)kMaxTotalSize); 537583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 538583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 539583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 540a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen mSyncSamples = new (std::nothrow) uint32_t[numSyncSamples]; 541583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (!mSyncSamples) { 542583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Cannot allocate sync sample table with %llu entries.", 543a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen (unsigned long long)numSyncSamples); 544583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return ERROR_OUT_OF_RANGE; 545583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 546583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 547a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen if (mDataSource->readAt(data_offset + 8, mSyncSamples, 548583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (size_t)allocSize) != (ssize_t)allocSize) { 549a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen delete mSyncSamples; 550a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen mSyncSamples = NULL; 5518bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber return ERROR_IO; 5528bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 5538bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 554a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen for (size_t i = 0; i < numSyncSamples; ++i) { 5558bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples[i] = ntohl(mSyncSamples[i]) - 1; 5568bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 5578bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 558a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen mSyncSampleOffset = data_offset; 559a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen mNumSyncSamples = numSyncSamples; 560a9660fe122ca382e1777e0c5d3c42ca67ffb0377Marco Nelissen 56120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 56220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 56320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 56420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberuint32_t SampleTable::countChunkOffsets() const { 56520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return mNumChunkOffsets; 56620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 56720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 56820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberuint32_t SampleTable::countSamples() const { 56920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return mNumSampleSizes; 57020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 57120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 57220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::getMaxSampleSize(size_t *max_size) { 57320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex::Autolock autoLock(mLock); 57420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 57520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *max_size = 0; 57620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 57720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber for (uint32_t i = 0; i < mNumSampleSizes; ++i) { 57820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber size_t sample_size; 579c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err = getSampleSize_l(i, &sample_size); 580da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 58120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (err != OK) { 58220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return err; 58320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 58420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 58520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (sample_size > *max_size) { 58620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *max_size = sample_size; 58720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 58820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 58920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 59020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 59120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 59220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 593da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huberuint32_t abs_difference(uint32_t time1, uint32_t time2) { 594da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber return time1 > time2 ? time1 - time2 : time2 - time1; 595da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber} 596da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 5974678a6dc5f09008481524949a9667af5a6190374Andreas Huber// static 5984678a6dc5f09008481524949a9667af5a6190374Andreas Huberint SampleTable::CompareIncreasingTime(const void *_a, const void *_b) { 5994678a6dc5f09008481524949a9667af5a6190374Andreas Huber const SampleTimeEntry *a = (const SampleTimeEntry *)_a; 6004678a6dc5f09008481524949a9667af5a6190374Andreas Huber const SampleTimeEntry *b = (const SampleTimeEntry *)_b; 6014931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 6024678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (a->mCompositionTime < b->mCompositionTime) { 6034678a6dc5f09008481524949a9667af5a6190374Andreas Huber return -1; 6044678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else if (a->mCompositionTime > b->mCompositionTime) { 6054678a6dc5f09008481524949a9667af5a6190374Andreas Huber return 1; 6064678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 607abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 6084678a6dc5f09008481524949a9667af5a6190374Andreas Huber return 0; 6094678a6dc5f09008481524949a9667af5a6190374Andreas Huber} 6104678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6114678a6dc5f09008481524949a9667af5a6190374Andreas Hubervoid SampleTable::buildSampleEntriesTable() { 61220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex::Autolock autoLock(mLock); 61320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6145a132594b531f1f48098a790927f82080cc27f61Wei Jia if (mSampleTimeEntries != NULL || mNumSampleSizes == 0) { 615cccd2e5e3aa015d6ce96ba0245b7161c077cdba2Wei Jia if (mNumSampleSizes == 0) { 616cccd2e5e3aa015d6ce96ba0245b7161c077cdba2Wei Jia ALOGE("b/23247055, mNumSampleSizes(%u)", mNumSampleSizes); 617cccd2e5e3aa015d6ce96ba0245b7161c077cdba2Wei Jia } 6184678a6dc5f09008481524949a9667af5a6190374Andreas Huber return; 6194678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 6204678a6dc5f09008481524949a9667af5a6190374Andreas Huber 621583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mTotalSize += (uint64_t)mNumSampleSizes * sizeof(SampleTimeEntry); 622583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (mTotalSize > kMaxTotalSize) { 623583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Sample entry table size would make sample table too large.\n" 624583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Requested sample entry table size = %llu\n" 625583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Eventual sample table size >= %llu\n" 626583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa " Allowed sample table size = %llu\n", 627583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mNumSampleSizes * sizeof(SampleTimeEntry), 628583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mTotalSize, 629583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)kMaxTotalSize); 630583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return; 631583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 632583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa 633583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa mSampleTimeEntries = new (std::nothrow) SampleTimeEntry[mNumSampleSizes]; 634583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa if (!mSampleTimeEntries) { 635583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa ALOGE("Cannot allocate sample entry table with %llu entries.", 636583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa (unsigned long long)mNumSampleSizes); 637583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa return; 638583a012a9fce81162b163d3533e2644d4abad88aPawin Vongmasa } 6394678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6404678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t sampleIndex = 0; 6414678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t sampleTime = 0; 6424678a6dc5f09008481524949a9667af5a6190374Andreas Huber 64320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber for (uint32_t i = 0; i < mTimeToSampleCount; ++i) { 64420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint32_t n = mTimeToSample[2 * i]; 64520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint32_t delta = mTimeToSample[2 * i + 1]; 64620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6474678a6dc5f09008481524949a9667af5a6190374Andreas Huber for (uint32_t j = 0; j < n; ++j) { 64865a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber if (sampleIndex < mNumSampleSizes) { 64965a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // Technically this should always be the case if the file 65065a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // is well-formed, but you know... there's (gasp) malformed 65165a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // content out there. 65220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 65365a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber mSampleTimeEntries[sampleIndex].mSampleIndex = sampleIndex; 654abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 65589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t compTimeDelta = 65689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup->getCompositionTimeOffset( 65789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber sampleIndex); 65889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 65965a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber mSampleTimeEntries[sampleIndex].mCompositionTime = 66089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber sampleTime + compTimeDelta; 66165a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber } 6624678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6634678a6dc5f09008481524949a9667af5a6190374Andreas Huber ++sampleIndex; 6644678a6dc5f09008481524949a9667af5a6190374Andreas Huber sampleTime += delta; 6654678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 6664678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 6674678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6684678a6dc5f09008481524949a9667af5a6190374Andreas Huber qsort(mSampleTimeEntries, mNumSampleSizes, sizeof(SampleTimeEntry), 6694678a6dc5f09008481524949a9667af5a6190374Andreas Huber CompareIncreasingTime); 6704678a6dc5f09008481524949a9667af5a6190374Andreas Huber} 6714678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6724678a6dc5f09008481524949a9667af5a6190374Andreas Huberstatus_t SampleTable::findSampleAtTime( 673599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint64_t req_time, uint64_t scale_num, uint64_t scale_den, 674599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t *sample_index, uint32_t flags) { 6754678a6dc5f09008481524949a9667af5a6190374Andreas Huber buildSampleEntriesTable(); 6764678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6775a132594b531f1f48098a790927f82080cc27f61Wei Jia if (mSampleTimeEntries == NULL) { 6785a132594b531f1f48098a790927f82080cc27f61Wei Jia return ERROR_OUT_OF_RANGE; 6795a132594b531f1f48098a790927f82080cc27f61Wei Jia } 6805a132594b531f1f48098a790927f82080cc27f61Wei Jia 6814678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t left = 0; 682225d5b20409fd400bfa4ed5e9bc1d5babb498471Lajos Molnar uint32_t right_plus_one = mNumSampleSizes; 683225d5b20409fd400bfa4ed5e9bc1d5babb498471Lajos Molnar while (left < right_plus_one) { 684225d5b20409fd400bfa4ed5e9bc1d5babb498471Lajos Molnar uint32_t center = left + (right_plus_one - left) / 2; 685599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint64_t centerTime = 686599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar getSampleTime(center, scale_num, scale_den); 6874678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6884678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (req_time < centerTime) { 689225d5b20409fd400bfa4ed5e9bc1d5babb498471Lajos Molnar right_plus_one = center; 6904678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else if (req_time > centerTime) { 6914678a6dc5f09008481524949a9667af5a6190374Andreas Huber left = center + 1; 6924678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else { 693599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar *sample_index = mSampleTimeEntries[center].mSampleIndex; 694599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return OK; 6954678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 6964678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 6974678a6dc5f09008481524949a9667af5a6190374Andreas Huber 698599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t closestIndex = left; 699599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 700599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (closestIndex == mNumSampleSizes) { 701a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber if (flags == kFlagAfter) { 702a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber return ERROR_OUT_OF_RANGE; 703a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber } 704599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar flags = kFlagBefore; 705599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } else if (closestIndex == 0) { 706599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (flags == kFlagBefore) { 707599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // normally we should return out of range, but that is 708599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // treated as end-of-stream. instead return first sample 709599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // 710599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // return ERROR_OUT_OF_RANGE; 711599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 712599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar flags = kFlagAfter; 7134678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 7144678a6dc5f09008481524949a9667af5a6190374Andreas Huber 7154678a6dc5f09008481524949a9667af5a6190374Andreas Huber switch (flags) { 7164678a6dc5f09008481524949a9667af5a6190374Andreas Huber case kFlagBefore: 7174678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 718599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar --closestIndex; 7194678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 7204678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 72120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 7224678a6dc5f09008481524949a9667af5a6190374Andreas Huber case kFlagAfter: 7234678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 724599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // nothing to do 7254678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 72620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 72720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 7284678a6dc5f09008481524949a9667af5a6190374Andreas Huber default: 7294678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 7304678a6dc5f09008481524949a9667af5a6190374Andreas Huber CHECK(flags == kFlagClosest); 731599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // pick closest based on timestamp. use abs_difference for safety 732599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (abs_difference( 733599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar getSampleTime(closestIndex, scale_num, scale_den), req_time) > 734599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar abs_difference( 735599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar req_time, getSampleTime(closestIndex - 1, scale_num, scale_den))) { 736599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar --closestIndex; 7374678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 7384678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 7394678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 74020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 74120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 7424678a6dc5f09008481524949a9667af5a6190374Andreas Huber *sample_index = mSampleTimeEntries[closestIndex].mSampleIndex; 7434678a6dc5f09008481524949a9667af5a6190374Andreas Huber return OK; 74420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 74520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 746abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huberstatus_t SampleTable::findSyncSampleNear( 747abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t start_sample_index, uint32_t *sample_index, uint32_t flags) { 748abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber Mutex::Autolock autoLock(mLock); 749abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 75020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *sample_index = 0; 75120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 75220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSyncSampleOffset < 0) { 75320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // All samples are sync-samples. 75420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *sample_index = start_sample_index; 75520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 75620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 75720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 758abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (mNumSyncSamples == 0) { 759abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber *sample_index = 0; 760abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return OK; 761abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 762da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 763abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t left = 0; 764225d5b20409fd400bfa4ed5e9bc1d5babb498471Lajos Molnar uint32_t right_plus_one = mNumSyncSamples; 765225d5b20409fd400bfa4ed5e9bc1d5babb498471Lajos Molnar while (left < right_plus_one) { 766225d5b20409fd400bfa4ed5e9bc1d5babb498471Lajos Molnar uint32_t center = left + (right_plus_one - left) / 2; 7678f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t x = mSyncSamples[center]; 76820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 7698f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber if (start_sample_index < x) { 770225d5b20409fd400bfa4ed5e9bc1d5babb498471Lajos Molnar right_plus_one = center; 7718f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } else if (start_sample_index > x) { 7728f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber left = center + 1; 7738f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } else { 774599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar *sample_index = x; 775599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return OK; 77620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 777f53263a7d580fb550dbc6c8d4f104119beb82ad7James Dong } 778599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 7798d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng if (left == mNumSyncSamples) { 7808d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng if (flags == kFlagAfter) { 78129357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("tried to find a sync frame after the last one: %d", left); 7828d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng return ERROR_OUT_OF_RANGE; 7838d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng } 784599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar flags = kFlagBefore; 7858d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng } 786599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar else if (left == 0) { 787599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (flags == kFlagBefore) { 788599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar ALOGE("tried to find a sync frame before the first one: %d", left); 789abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 790599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // normally we should return out of range, but that is 791599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // treated as end-of-stream. instead seek to first sync 792599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // 793599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // return ERROR_OUT_OF_RANGE; 794abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 795599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar flags = kFlagAfter; 796abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 797abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 798599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // Now ssi[left - 1] <(=) start_sample_index <= ssi[left] 799abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber switch (flags) { 800abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber case kFlagBefore: 801abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber { 802599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar --left; 803abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 804abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 805abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber case kFlagAfter: 806abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber { 807599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // nothing to do 808abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 809abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 810abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber default: 811599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar { 812599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // this route is not used, but implement it nonetheless 813599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar CHECK(flags == kFlagClosest); 814599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 815599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar status_t err = mSampleIterator->seekTo(start_sample_index); 816599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (err != OK) { 817599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return err; 818599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 819599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t sample_time = mSampleIterator->getSampleTime(); 820599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 821599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar err = mSampleIterator->seekTo(mSyncSamples[left]); 822599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (err != OK) { 823599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return err; 824599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 825599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t upper_time = mSampleIterator->getSampleTime(); 826599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 827599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar err = mSampleIterator->seekTo(mSyncSamples[left - 1]); 828599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (err != OK) { 829599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return err; 830599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 831599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t lower_time = mSampleIterator->getSampleTime(); 832599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 833599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // use abs_difference for safety 834599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (abs_difference(upper_time, sample_time) > 835599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar abs_difference(sample_time, lower_time)) { 836599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar --left; 837599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 838abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 839599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 84020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 84120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 842599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar *sample_index = mSyncSamples[left]; 84320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 84420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 84520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 8467e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huberstatus_t SampleTable::findThumbnailSample(uint32_t *sample_index) { 847c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber Mutex::Autolock autoLock(mLock); 848c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 8497e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (mSyncSampleOffset < 0) { 8507e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // All samples are sync-samples. 8517e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber *sample_index = 0; 8527e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return OK; 8537e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 8547e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8557e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber uint32_t bestSampleIndex = 0; 8567e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t maxSampleSize = 0; 8577e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8587e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber static const size_t kMaxNumSyncSamplesToScan = 20; 8597e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8607e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // Consider the first kMaxNumSyncSamplesToScan sync samples and 8617e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // pick the one with the largest (compressed) size as the thumbnail. 8627e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8637e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t numSamplesToScan = mNumSyncSamples; 8647e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (numSamplesToScan > kMaxNumSyncSamplesToScan) { 8657e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber numSamplesToScan = kMaxNumSyncSamplesToScan; 8667e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 8677e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8687e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber for (size_t i = 0; i < numSamplesToScan; ++i) { 8698bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber uint32_t x = mSyncSamples[i]; 8707e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8717e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // Now x is a sample index. 8727e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t sampleSize; 873c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err = getSampleSize_l(x, &sampleSize); 8747e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (err != OK) { 8757e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return err; 8767e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 8777e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8787e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (i == 0 || sampleSize > maxSampleSize) { 8797e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber bestSampleIndex = x; 8807e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber maxSampleSize = sampleSize; 8817e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 8827e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 8837e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8847e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber *sample_index = bestSampleIndex; 8857e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8867e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return OK; 8877e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber} 8887e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 889c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberstatus_t SampleTable::getSampleSize_l( 890c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint32_t sampleIndex, size_t *sampleSize) { 891c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return mSampleIterator->getSampleSizeDirect( 892c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber sampleIndex, sampleSize); 893c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber} 894c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 895c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberstatus_t SampleTable::getMetaDataForSample( 896c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint32_t sampleIndex, 897c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t *offset, 898c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber size_t *size, 8994678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t *compositionTime, 900170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih bool *isSyncSample, 901170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih uint32_t *sampleDuration) { 902c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber Mutex::Autolock autoLock(mLock); 903c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 904c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err; 905c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if ((err = mSampleIterator->seekTo(sampleIndex)) != OK) { 906c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return err; 907c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 908c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 909c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (offset) { 910c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber *offset = mSampleIterator->getSampleOffset(); 911c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 912c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 913c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (size) { 914c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber *size = mSampleIterator->getSampleSize(); 915c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 916c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 9174678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (compositionTime) { 9184678a6dc5f09008481524949a9667af5a6190374Andreas Huber *compositionTime = mSampleIterator->getSampleTime(); 919c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 920c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 9218bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (isSyncSample) { 9228bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = false; 9238bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (mSyncSampleOffset < 0) { 9248bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber // Every sample is a sync sample. 9258bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = true; 9268bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } else { 9278bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber size_t i = (mLastSyncSampleIndex < mNumSyncSamples) 9288bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber && (mSyncSamples[mLastSyncSampleIndex] <= sampleIndex) 9298bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber ? mLastSyncSampleIndex : 0; 9308bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 9318bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber while (i < mNumSyncSamples && mSyncSamples[i] < sampleIndex) { 9328bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber ++i; 9338bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 9348bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 9358bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (i < mNumSyncSamples && mSyncSamples[i] == sampleIndex) { 9368bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = true; 9378bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 9388bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 9398bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mLastSyncSampleIndex = i; 9408bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 9418bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 9428bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 943170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih if (sampleDuration) { 944170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih *sampleDuration = mSampleIterator->getSampleDuration(); 945170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih } 946170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih 947c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return OK; 948c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber} 949c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 95089aa8fe4cb00d2f24260005b008602232d678684Andreas Huberuint32_t SampleTable::getCompositionTimeOffset(uint32_t sampleIndex) { 95189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return mCompositionDeltaLookup->getCompositionTimeOffset(sampleIndex); 9524931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber} 9534931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 95420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 95520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 956