SampleTable.cpp revision cccd2e5e3aa015d6ce96ba0245b7161c077cdba2
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 30108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia/* TODO: remove after being merged into other branches */ 31108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia#ifndef UINT32_MAX 32108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia#define UINT32_MAX (4294967295U) 33108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia#endif 34108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia 3520111aa043c5f404472bc63b90bc5aad906b1101Andreas Hubernamespace android { 3620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 37c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber// static 38c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberconst uint32_t SampleTable::kChunkOffsetType32 = FOURCC('s', 't', 'c', 'o'); 39c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber// static 40c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberconst uint32_t SampleTable::kChunkOffsetType64 = FOURCC('c', 'o', '6', '4'); 41c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber// static 42c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberconst uint32_t SampleTable::kSampleSizeType32 = FOURCC('s', 't', 's', 'z'); 43c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber// static 44c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberconst uint32_t SampleTable::kSampleSizeTypeCompact = FOURCC('s', 't', 'z', '2'); 45c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 46c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber//////////////////////////////////////////////////////////////////////////////// 4720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4889aa8fe4cb00d2f24260005b008602232d678684Andreas Huberstruct SampleTable::CompositionDeltaLookup { 4989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber CompositionDeltaLookup(); 5089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber void setEntries( 5289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *deltaEntries, size_t numDeltaEntries); 5389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t getCompositionTimeOffset(uint32_t sampleIndex); 5589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5689aa8fe4cb00d2f24260005b008602232d678684Andreas Huberprivate: 5789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex mLock; 5889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *mDeltaEntries; 6089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mNumDeltaEntries; 6189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 6289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mCurrentDeltaEntry; 6389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mCurrentEntrySampleIndex; 6489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 6589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(CompositionDeltaLookup); 6689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber}; 6789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 6889aa8fe4cb00d2f24260005b008602232d678684Andreas HuberSampleTable::CompositionDeltaLookup::CompositionDeltaLookup() 6989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber : mDeltaEntries(NULL), 7089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mNumDeltaEntries(0), 7189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry(0), 7289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex(0) { 7389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 7489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 7589aa8fe4cb00d2f24260005b008602232d678684Andreas Hubervoid SampleTable::CompositionDeltaLookup::setEntries( 7689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *deltaEntries, size_t numDeltaEntries) { 7789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex::Autolock autolock(mLock); 7889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 7989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mDeltaEntries = deltaEntries; 8089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mNumDeltaEntries = numDeltaEntries; 8189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry = 0; 8289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex = 0; 8389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 8489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 8589aa8fe4cb00d2f24260005b008602232d678684Andreas Huberuint32_t SampleTable::CompositionDeltaLookup::getCompositionTimeOffset( 8689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t sampleIndex) { 8789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex::Autolock autolock(mLock); 8889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 8989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (mDeltaEntries == NULL) { 9089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return 0; 9189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 9289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 9389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (sampleIndex < mCurrentEntrySampleIndex) { 9489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry = 0; 9589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex = 0; 9689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 9789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 9889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber while (mCurrentDeltaEntry < mNumDeltaEntries) { 9989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t sampleCount = mDeltaEntries[2 * mCurrentDeltaEntry]; 10089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (sampleIndex < mCurrentEntrySampleIndex + sampleCount) { 10189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return mDeltaEntries[2 * mCurrentDeltaEntry + 1]; 10289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 10389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 10489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex += sampleCount; 10589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber ++mCurrentDeltaEntry; 10689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 10789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 10889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return 0; 10989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 11089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 11189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber//////////////////////////////////////////////////////////////////////////////// 11289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 113693d271e62a3726689ff68f4505ba49228eb94b2Andreas HuberSampleTable::SampleTable(const sp<DataSource> &source) 11420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber : mDataSource(source), 11520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetOffset(-1), 11620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetType(0), 11720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumChunkOffsets(0), 11820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleToChunkOffset(-1), 11920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleToChunkOffsets(0), 12020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeOffset(-1), 12120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeFieldSize(0), 12220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize(0), 12320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleSizes(0), 12420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSampleCount(0), 12520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSample(NULL), 1264678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries(NULL), 1274931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries(NULL), 1284931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mNumCompositionTimeDeltaEntries(0), 12989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup(new CompositionDeltaLookup), 13020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSyncSampleOffset(-1), 131c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mNumSyncSamples(0), 1328bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples(NULL), 1338bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mLastSyncSampleIndex(0), 134c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries(NULL) { 135c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleIterator = new SampleIterator(this); 13620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 13720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 13820111aa043c5f404472bc63b90bc5aad906b1101Andreas HuberSampleTable::~SampleTable() { 139c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber delete[] mSampleToChunkEntries; 140c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries = NULL; 141c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 1428bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber delete[] mSyncSamples; 1438bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples = NULL; 1448bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 14589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber delete mCompositionDeltaLookup; 14689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup = NULL; 14789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 1484931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber delete[] mCompositionTimeDeltaEntries; 1494931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries = NULL; 1504931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 1514678a6dc5f09008481524949a9667af5a6190374Andreas Huber delete[] mSampleTimeEntries; 1524678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries = NULL; 1534678a6dc5f09008481524949a9667af5a6190374Andreas Huber 15420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber delete[] mTimeToSample; 15520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSample = NULL; 156c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 157c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber delete mSampleIterator; 158c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleIterator = NULL; 15920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 16020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 161169c286ed166499c5099d2b336967e0bf3d25551Andreas Huberbool SampleTable::isValid() const { 162169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber return mChunkOffsetOffset >= 0 163169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber && mSampleToChunkOffset >= 0 164169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber && mSampleSizeOffset >= 0 165169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber && mTimeToSample != NULL; 166169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber} 167169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber 16820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setChunkOffsetParams( 169c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong uint32_t type, off64_t data_offset, size_t data_size) { 17020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mChunkOffsetOffset >= 0) { 17120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 17220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 17320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1740c89199745bc1bf05b997fc7c342017807676b6fAndreas Huber CHECK(type == kChunkOffsetType32 || type == kChunkOffsetType64); 17520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 17620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetOffset = data_offset; 17720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetType = type; 17820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 17920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8) { 18020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 18120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 18220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 18320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 18434769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 18520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 18620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 18720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 18820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 18920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 19020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 19120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 19220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 19320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 19420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumChunkOffsets = U32_AT(&header[4]); 19520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 19620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mChunkOffsetType == kChunkOffsetType32) { 19720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8 + mNumChunkOffsets * 4) { 19820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 19920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 20020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } else { 20120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8 + mNumChunkOffsets * 8) { 20220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 20320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 20420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 20520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 20620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 20720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 20820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 20920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setSampleToChunkParams( 210c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t data_offset, size_t data_size) { 21120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleToChunkOffset >= 0) { 21220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 21320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 21420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 21520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleToChunkOffset = data_offset; 21620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 21720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8) { 21820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 21920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 22020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 22120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 22234769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 22320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 22420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 22520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 22620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 22720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 22820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 22920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 23020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 23120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 23220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleToChunkOffsets = U32_AT(&header[4]); 23320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 23420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8 + mNumSampleToChunkOffsets * 12) { 23520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 23620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 23720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2385c4428f6391478ae983e1fcf7c42c832aa1a5e69Joshua J. Drake if (SIZE_MAX / sizeof(SampleToChunkEntry) <= mNumSampleToChunkOffsets) 2395c4428f6391478ae983e1fcf7c42c832aa1a5e69Joshua J. Drake return ERROR_OUT_OF_RANGE; 2405c4428f6391478ae983e1fcf7c42c832aa1a5e69Joshua J. Drake 241c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries = 242c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber new SampleToChunkEntry[mNumSampleToChunkOffsets]; 243c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 244c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber for (uint32_t i = 0; i < mNumSampleToChunkOffsets; ++i) { 245c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint8_t buffer[12]; 246c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (mDataSource->readAt( 247c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkOffset + 8 + i * 12, buffer, sizeof(buffer)) 248c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber != (ssize_t)sizeof(buffer)) { 249c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return ERROR_IO; 250c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 251c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 252c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber CHECK(U32_AT(buffer) >= 1); // chunk index is 1 based in the spec. 253c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 254c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber // We want the chunk index to be 0-based. 255c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].startChunk = U32_AT(buffer) - 1; 256c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].samplesPerChunk = U32_AT(&buffer[4]); 257c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].chunkDesc = U32_AT(&buffer[8]); 258c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 259c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 26020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 26120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 26220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 26320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setSampleSizeParams( 264c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong uint32_t type, off64_t data_offset, size_t data_size) { 26520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleSizeOffset >= 0) { 26620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 26720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 26820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2690c89199745bc1bf05b997fc7c342017807676b6fAndreas Huber CHECK(type == kSampleSizeType32 || type == kSampleSizeTypeCompact); 27020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 27120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeOffset = data_offset; 27220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 27320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12) { 27420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 27520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 27620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 27720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[12]; 27834769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 27920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 28020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 28120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 28220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 28320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 28420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 28520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 28620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 28720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 28820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize = U32_AT(&header[4]); 28920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleSizes = U32_AT(&header[8]); 290108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia if (mNumSampleSizes > (UINT32_MAX - 12) / 16) { 291c27cee30d9359fa83e33b4f87f88e6bb9ef66341Wei Jia ALOGE("b/23247055, mNumSampleSizes(%u)", mNumSampleSizes); 292108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia return ERROR_MALFORMED; 293108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia } 29420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 29520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (type == kSampleSizeType32) { 29620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeFieldSize = 32; 29720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 29820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mDefaultSampleSize != 0) { 29920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 30020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 30120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 30220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12 + mNumSampleSizes * 4) { 30320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 30420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 30520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } else { 30620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if ((mDefaultSampleSize & 0xffffff00) != 0) { 30720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // The high 24 bits are reserved and must be 0. 30820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 30920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 31020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3119f753df58a70f20db220af31cb202bbd21b30f36Andreas Huber mSampleSizeFieldSize = mDefaultSampleSize & 0xff; 31220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize = 0; 31320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 31420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleSizeFieldSize != 4 && mSampleSizeFieldSize != 8 31520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber && mSampleSizeFieldSize != 16) { 31620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 31720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 31820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 31920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12 + (mNumSampleSizes * mSampleSizeFieldSize + 4) / 8) { 32020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 32120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 32220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 32320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 32420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 32520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 32620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 32720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setTimeToSampleParams( 328c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t data_offset, size_t data_size) { 32920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mTimeToSample != NULL || data_size < 8) { 33020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 33120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 33220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 33320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 33434769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 33520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 33620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 33720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 33820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 33920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 34020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 34120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 34220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 34320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 34420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSampleCount = U32_AT(&header[4]); 345738a753a3ca7bf8f9f608ca941575626265294e4Wei Jia uint64_t allocSize = (uint64_t)mTimeToSampleCount * 2 * sizeof(uint32_t); 346f106b1993143df44282777253244ce67974c9d4aRobert Shih if (allocSize > SIZE_MAX) { 347f106b1993143df44282777253244ce67974c9d4aRobert Shih return ERROR_OUT_OF_RANGE; 348f106b1993143df44282777253244ce67974c9d4aRobert Shih } 34920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSample = new uint32_t[mTimeToSampleCount * 2]; 35020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 35120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber size_t size = sizeof(uint32_t) * mTimeToSampleCount * 2; 35234769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 35320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset + 8, mTimeToSample, size) < (ssize_t)size) { 35420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 35520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 35620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 35720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber for (uint32_t i = 0; i < mTimeToSampleCount * 2; ++i) { 35820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSample[i] = ntohl(mTimeToSample[i]); 35920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 36020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 36120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 36220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 36320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3644931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huberstatus_t SampleTable::setCompositionTimeToSampleParams( 3654931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber off64_t data_offset, size_t data_size) { 366df64d15042bbd5e0e4933ac49bf3c177dd94752cSteve Block ALOGI("There are reordered frames present."); 3674931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3684931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (mCompositionTimeDeltaEntries != NULL || data_size < 8) { 3694931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 3704931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3714931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3724931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber uint8_t header[8]; 3734931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (mDataSource->readAt( 3744931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber data_offset, header, sizeof(header)) 3754931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber < (ssize_t)sizeof(header)) { 3764931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_IO; 3774931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3784931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3794931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (U32_AT(header) != 0) { 3804931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber // Expected version = 0, flags = 0. 3814931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 3824931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3834931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3844931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber size_t numEntries = U32_AT(&header[4]); 3854931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3864931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (data_size != (numEntries + 1) * 8) { 3874931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 3884931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3894931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3904931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mNumCompositionTimeDeltaEntries = numEntries; 391738a753a3ca7bf8f9f608ca941575626265294e4Wei Jia uint64_t allocSize = (uint64_t)numEntries * 2 * sizeof(uint32_t); 392f106b1993143df44282777253244ce67974c9d4aRobert Shih if (allocSize > SIZE_MAX) { 393f106b1993143df44282777253244ce67974c9d4aRobert Shih return ERROR_OUT_OF_RANGE; 394f106b1993143df44282777253244ce67974c9d4aRobert Shih } 395f106b1993143df44282777253244ce67974c9d4aRobert Shih 3964931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries = new uint32_t[2 * numEntries]; 3974931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3984931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (mDataSource->readAt( 3994931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber data_offset + 8, mCompositionTimeDeltaEntries, numEntries * 8) 4004931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber < (ssize_t)numEntries * 8) { 4014931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber delete[] mCompositionTimeDeltaEntries; 4024931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries = NULL; 4034931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4044931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_IO; 4054931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 4064931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4074931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber for (size_t i = 0; i < 2 * numEntries; ++i) { 4084931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries[i] = ntohl(mCompositionTimeDeltaEntries[i]); 4094931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 4104931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 41189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup->setEntries( 41289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionTimeDeltaEntries, mNumCompositionTimeDeltaEntries); 41389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 4144931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return OK; 4154931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber} 4164931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 417c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dongstatus_t SampleTable::setSyncSampleParams(off64_t data_offset, size_t data_size) { 41820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSyncSampleOffset >= 0 || data_size < 8) { 41920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 42020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 42120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 42220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSyncSampleOffset = data_offset; 42320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 42420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 42534769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 42620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 42720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 42820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 42920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 43020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 43120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 43220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 43320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 43420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 43520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSyncSamples = U32_AT(&header[4]); 43620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 43720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mNumSyncSamples < 2) { 4383856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("Table of sync samples is empty or has only a single entry!"); 43920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 4408bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 4413cc11bfc00cbb3ed87a4464777a75606b4973b51Joshua J. Drake uint64_t allocSize = mNumSyncSamples * (uint64_t)sizeof(uint32_t); 442f106b1993143df44282777253244ce67974c9d4aRobert Shih if (allocSize > SIZE_MAX) { 443f106b1993143df44282777253244ce67974c9d4aRobert Shih return ERROR_OUT_OF_RANGE; 444f106b1993143df44282777253244ce67974c9d4aRobert Shih } 445f106b1993143df44282777253244ce67974c9d4aRobert Shih 4468bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples = new uint32_t[mNumSyncSamples]; 4478bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber size_t size = mNumSyncSamples * sizeof(uint32_t); 4488bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (mDataSource->readAt(mSyncSampleOffset + 8, mSyncSamples, size) 4498bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber != (ssize_t)size) { 4508bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber return ERROR_IO; 4518bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 4528bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 4538bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber for (size_t i = 0; i < mNumSyncSamples; ++i) { 4548bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples[i] = ntohl(mSyncSamples[i]) - 1; 4558bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 4568bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 45720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 45820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 45920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 46020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberuint32_t SampleTable::countChunkOffsets() const { 46120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return mNumChunkOffsets; 46220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 46320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 46420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberuint32_t SampleTable::countSamples() const { 46520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return mNumSampleSizes; 46620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 46720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 46820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::getMaxSampleSize(size_t *max_size) { 46920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex::Autolock autoLock(mLock); 47020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 47120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *max_size = 0; 47220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 47320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber for (uint32_t i = 0; i < mNumSampleSizes; ++i) { 47420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber size_t sample_size; 475c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err = getSampleSize_l(i, &sample_size); 476da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 47720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (err != OK) { 47820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return err; 47920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 48020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 48120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (sample_size > *max_size) { 48220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *max_size = sample_size; 48320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 48420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 48520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 48620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 48720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 48820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 489da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huberuint32_t abs_difference(uint32_t time1, uint32_t time2) { 490da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber return time1 > time2 ? time1 - time2 : time2 - time1; 491da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber} 492da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 4934678a6dc5f09008481524949a9667af5a6190374Andreas Huber// static 4944678a6dc5f09008481524949a9667af5a6190374Andreas Huberint SampleTable::CompareIncreasingTime(const void *_a, const void *_b) { 4954678a6dc5f09008481524949a9667af5a6190374Andreas Huber const SampleTimeEntry *a = (const SampleTimeEntry *)_a; 4964678a6dc5f09008481524949a9667af5a6190374Andreas Huber const SampleTimeEntry *b = (const SampleTimeEntry *)_b; 4974931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4984678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (a->mCompositionTime < b->mCompositionTime) { 4994678a6dc5f09008481524949a9667af5a6190374Andreas Huber return -1; 5004678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else if (a->mCompositionTime > b->mCompositionTime) { 5014678a6dc5f09008481524949a9667af5a6190374Andreas Huber return 1; 5024678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 503abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 5044678a6dc5f09008481524949a9667af5a6190374Andreas Huber return 0; 5054678a6dc5f09008481524949a9667af5a6190374Andreas Huber} 5064678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5074678a6dc5f09008481524949a9667af5a6190374Andreas Hubervoid SampleTable::buildSampleEntriesTable() { 50820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex::Autolock autoLock(mLock); 50920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 510108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia if (mSampleTimeEntries != NULL || mNumSampleSizes == 0) { 511cccd2e5e3aa015d6ce96ba0245b7161c077cdba2Wei Jia if (mNumSampleSizes == 0) { 512cccd2e5e3aa015d6ce96ba0245b7161c077cdba2Wei Jia ALOGE("b/23247055, mNumSampleSizes(%u)", mNumSampleSizes); 513cccd2e5e3aa015d6ce96ba0245b7161c077cdba2Wei Jia } 5144678a6dc5f09008481524949a9667af5a6190374Andreas Huber return; 5154678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5164678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5174678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries = new SampleTimeEntry[mNumSampleSizes]; 5184678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5194678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t sampleIndex = 0; 5204678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t sampleTime = 0; 5214678a6dc5f09008481524949a9667af5a6190374Andreas Huber 52220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber for (uint32_t i = 0; i < mTimeToSampleCount; ++i) { 52320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint32_t n = mTimeToSample[2 * i]; 52420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint32_t delta = mTimeToSample[2 * i + 1]; 52520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5264678a6dc5f09008481524949a9667af5a6190374Andreas Huber for (uint32_t j = 0; j < n; ++j) { 52765a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber if (sampleIndex < mNumSampleSizes) { 52865a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // Technically this should always be the case if the file 52965a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // is well-formed, but you know... there's (gasp) malformed 53065a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // content out there. 53120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 53265a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber mSampleTimeEntries[sampleIndex].mSampleIndex = sampleIndex; 533abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 53489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t compTimeDelta = 53589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup->getCompositionTimeOffset( 53689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber sampleIndex); 53789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 53865a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber mSampleTimeEntries[sampleIndex].mCompositionTime = 53989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber sampleTime + compTimeDelta; 54065a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber } 5414678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5424678a6dc5f09008481524949a9667af5a6190374Andreas Huber ++sampleIndex; 5434678a6dc5f09008481524949a9667af5a6190374Andreas Huber sampleTime += delta; 5444678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5454678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5464678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5474678a6dc5f09008481524949a9667af5a6190374Andreas Huber qsort(mSampleTimeEntries, mNumSampleSizes, sizeof(SampleTimeEntry), 5484678a6dc5f09008481524949a9667af5a6190374Andreas Huber CompareIncreasingTime); 5494678a6dc5f09008481524949a9667af5a6190374Andreas Huber} 5504678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5514678a6dc5f09008481524949a9667af5a6190374Andreas Huberstatus_t SampleTable::findSampleAtTime( 5524678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t req_time, uint32_t *sample_index, uint32_t flags) { 5534678a6dc5f09008481524949a9667af5a6190374Andreas Huber buildSampleEntriesTable(); 5544678a6dc5f09008481524949a9667af5a6190374Andreas Huber 555108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia if (mSampleTimeEntries == NULL) { 556108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia return ERROR_OUT_OF_RANGE; 557108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia } 558108cd2dc8df55f3f2ecdfbb4bb0ae981a74b6860Wei Jia 5594678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t left = 0; 5604678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t right = mNumSampleSizes; 5614678a6dc5f09008481524949a9667af5a6190374Andreas Huber while (left < right) { 5624678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t center = (left + right) / 2; 5634678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t centerTime = mSampleTimeEntries[center].mCompositionTime; 5644678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5654678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (req_time < centerTime) { 5664678a6dc5f09008481524949a9667af5a6190374Andreas Huber right = center; 5674678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else if (req_time > centerTime) { 5684678a6dc5f09008481524949a9667af5a6190374Andreas Huber left = center + 1; 5694678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else { 5704678a6dc5f09008481524949a9667af5a6190374Andreas Huber left = center; 5714678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 5724678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5734678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5744678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5754678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (left == mNumSampleSizes) { 576a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber if (flags == kFlagAfter) { 577a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber return ERROR_OUT_OF_RANGE; 578a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber } 579a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber 5804678a6dc5f09008481524949a9667af5a6190374Andreas Huber --left; 5814678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5824678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5834678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t closestIndex = left; 584abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 5854678a6dc5f09008481524949a9667af5a6190374Andreas Huber switch (flags) { 5864678a6dc5f09008481524949a9667af5a6190374Andreas Huber case kFlagBefore: 5874678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 5884678a6dc5f09008481524949a9667af5a6190374Andreas Huber while (closestIndex > 0 5894678a6dc5f09008481524949a9667af5a6190374Andreas Huber && mSampleTimeEntries[closestIndex].mCompositionTime 5904678a6dc5f09008481524949a9667af5a6190374Andreas Huber > req_time) { 5914678a6dc5f09008481524949a9667af5a6190374Andreas Huber --closestIndex; 59220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 5934678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 5944678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 59520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5964678a6dc5f09008481524949a9667af5a6190374Andreas Huber case kFlagAfter: 5974678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 5984678a6dc5f09008481524949a9667af5a6190374Andreas Huber while (closestIndex + 1 < mNumSampleSizes 5994678a6dc5f09008481524949a9667af5a6190374Andreas Huber && mSampleTimeEntries[closestIndex].mCompositionTime 6004678a6dc5f09008481524949a9667af5a6190374Andreas Huber < req_time) { 6014678a6dc5f09008481524949a9667af5a6190374Andreas Huber ++closestIndex; 6024678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 6034678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 60420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 60520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6064678a6dc5f09008481524949a9667af5a6190374Andreas Huber default: 6074678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 6084678a6dc5f09008481524949a9667af5a6190374Andreas Huber CHECK(flags == kFlagClosest); 6094678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6104678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (closestIndex > 0) { 6114678a6dc5f09008481524949a9667af5a6190374Andreas Huber // Check left neighbour and pick closest. 6124678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t absdiff1 = 6134678a6dc5f09008481524949a9667af5a6190374Andreas Huber abs_difference( 6144678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries[closestIndex].mCompositionTime, 6154678a6dc5f09008481524949a9667af5a6190374Andreas Huber req_time); 6164678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6174678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t absdiff2 = 6184678a6dc5f09008481524949a9667af5a6190374Andreas Huber abs_difference( 6194678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries[closestIndex - 1].mCompositionTime, 6204678a6dc5f09008481524949a9667af5a6190374Andreas Huber req_time); 6214678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6224678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (absdiff1 > absdiff2) { 6234678a6dc5f09008481524949a9667af5a6190374Andreas Huber closestIndex = closestIndex - 1; 6244678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 6254678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 6264678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6274678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 6284678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 62920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 63020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6314678a6dc5f09008481524949a9667af5a6190374Andreas Huber *sample_index = mSampleTimeEntries[closestIndex].mSampleIndex; 6324678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6334678a6dc5f09008481524949a9667af5a6190374Andreas Huber return OK; 63420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 63520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 636abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huberstatus_t SampleTable::findSyncSampleNear( 637abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t start_sample_index, uint32_t *sample_index, uint32_t flags) { 638abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber Mutex::Autolock autoLock(mLock); 639abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 64020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *sample_index = 0; 64120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 64220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSyncSampleOffset < 0) { 64320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // All samples are sync-samples. 64420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *sample_index = start_sample_index; 64520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 64620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 64720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 648abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (mNumSyncSamples == 0) { 649abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber *sample_index = 0; 650abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return OK; 651abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 652da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 653abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t left = 0; 6548f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t right = mNumSyncSamples; 6558f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber while (left < right) { 6568f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t center = left + (right - left) / 2; 6578f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t x = mSyncSamples[center]; 65820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6598f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber if (start_sample_index < x) { 6608f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber right = center; 6618f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } else if (start_sample_index > x) { 6628f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber left = center + 1; 6638f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } else { 6648f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber left = center; 66520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber break; 66620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 667f53263a7d580fb550dbc6c8d4f104119beb82ad7James Dong } 6688d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng if (left == mNumSyncSamples) { 6698d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng if (flags == kFlagAfter) { 67029357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("tried to find a sync frame after the last one: %d", left); 6718d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng return ERROR_OUT_OF_RANGE; 6728d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng } 6738d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng left = left - 1; 6748d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng } 675abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 6768f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // Now ssi[left] is the sync sample index just before (or at) 6778f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // start_sample_index. 6788f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // Also start_sample_index < ssi[left + 1], if left + 1 < mNumSyncSamples. 679abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 6808f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t x = mSyncSamples[left]; 681abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 682abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (left + 1 < mNumSyncSamples) { 6838bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber uint32_t y = mSyncSamples[left + 1]; 684abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 685abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber // our sample lies between sync samples x and y. 686abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 687abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber status_t err = mSampleIterator->seekTo(start_sample_index); 688abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (err != OK) { 689abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return err; 690abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 691abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 692abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t sample_time = mSampleIterator->getSampleTime(); 693abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 694abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber err = mSampleIterator->seekTo(x); 695abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (err != OK) { 696abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return err; 697abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 698abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t x_time = mSampleIterator->getSampleTime(); 699abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 700abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber err = mSampleIterator->seekTo(y); 701abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (err != OK) { 702abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return err; 703abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 704abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 705abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t y_time = mSampleIterator->getSampleTime(); 706abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 707abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (abs_difference(x_time, sample_time) 708abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber > abs_difference(y_time, sample_time)) { 709abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber // Pick the sync sample closest (timewise) to the start-sample. 710abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber x = y; 711abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber ++left; 712abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 713abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 714abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 715abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber switch (flags) { 716abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber case kFlagBefore: 717abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber { 718abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (x > start_sample_index) { 719abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber CHECK(left > 0); 720abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 7218f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber x = mSyncSamples[left - 1]; 722abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 7238f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber if (x > start_sample_index) { 7248f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // The table of sync sample indices was not sorted 7258f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // properly. 7268f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber return ERROR_MALFORMED; 7278f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } 728abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 729abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 730abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 731abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 732abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber case kFlagAfter: 733abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber { 734abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (x < start_sample_index) { 735abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (left + 1 >= mNumSyncSamples) { 736abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return ERROR_OUT_OF_RANGE; 737abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 738abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 7398bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber x = mSyncSamples[left + 1]; 740abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 7418f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber if (x < start_sample_index) { 7428f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // The table of sync sample indices was not sorted 7438f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // properly. 7448f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber return ERROR_MALFORMED; 7458f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } 746abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 747abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 748abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 749abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 750abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 751abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber default: 752abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 75320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 75420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 755abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber *sample_index = x; 75620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 75720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 75820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 75920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 7607e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huberstatus_t SampleTable::findThumbnailSample(uint32_t *sample_index) { 761c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber Mutex::Autolock autoLock(mLock); 762c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 7637e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (mSyncSampleOffset < 0) { 7647e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // All samples are sync-samples. 7657e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber *sample_index = 0; 7667e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return OK; 7677e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7687e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7697e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber uint32_t bestSampleIndex = 0; 7707e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t maxSampleSize = 0; 7717e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7727e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber static const size_t kMaxNumSyncSamplesToScan = 20; 7737e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7747e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // Consider the first kMaxNumSyncSamplesToScan sync samples and 7757e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // pick the one with the largest (compressed) size as the thumbnail. 7767e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7777e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t numSamplesToScan = mNumSyncSamples; 7787e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (numSamplesToScan > kMaxNumSyncSamplesToScan) { 7797e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber numSamplesToScan = kMaxNumSyncSamplesToScan; 7807e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7817e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7827e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber for (size_t i = 0; i < numSamplesToScan; ++i) { 7838bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber uint32_t x = mSyncSamples[i]; 7847e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7857e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // Now x is a sample index. 7867e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t sampleSize; 787c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err = getSampleSize_l(x, &sampleSize); 7887e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (err != OK) { 7897e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return err; 7907e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7917e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7927e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (i == 0 || sampleSize > maxSampleSize) { 7937e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber bestSampleIndex = x; 7947e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber maxSampleSize = sampleSize; 7957e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7967e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7977e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7987e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber *sample_index = bestSampleIndex; 7997e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 8007e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return OK; 8017e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber} 8027e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 803c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberstatus_t SampleTable::getSampleSize_l( 804c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint32_t sampleIndex, size_t *sampleSize) { 805c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return mSampleIterator->getSampleSizeDirect( 806c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber sampleIndex, sampleSize); 807c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber} 808c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 809c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberstatus_t SampleTable::getMetaDataForSample( 810c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint32_t sampleIndex, 811c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t *offset, 812c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber size_t *size, 8134678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t *compositionTime, 8148bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber bool *isSyncSample) { 815c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber Mutex::Autolock autoLock(mLock); 816c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 817c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err; 818c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if ((err = mSampleIterator->seekTo(sampleIndex)) != OK) { 819c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return err; 820c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 821c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 822c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (offset) { 823c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber *offset = mSampleIterator->getSampleOffset(); 824c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 825c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 826c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (size) { 827c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber *size = mSampleIterator->getSampleSize(); 828c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 829c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 8304678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (compositionTime) { 8314678a6dc5f09008481524949a9667af5a6190374Andreas Huber *compositionTime = mSampleIterator->getSampleTime(); 832c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 833c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 8348bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (isSyncSample) { 8358bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = false; 8368bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (mSyncSampleOffset < 0) { 8378bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber // Every sample is a sync sample. 8388bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = true; 8398bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } else { 8408bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber size_t i = (mLastSyncSampleIndex < mNumSyncSamples) 8418bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber && (mSyncSamples[mLastSyncSampleIndex] <= sampleIndex) 8428bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber ? mLastSyncSampleIndex : 0; 8438bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 8448bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber while (i < mNumSyncSamples && mSyncSamples[i] < sampleIndex) { 8458bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber ++i; 8468bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 8478bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 8488bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (i < mNumSyncSamples && mSyncSamples[i] == sampleIndex) { 8498bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = true; 8508bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 8518bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 8528bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mLastSyncSampleIndex = i; 8538bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 8548bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 8558bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 856c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return OK; 857c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber} 858c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 85989aa8fe4cb00d2f24260005b008602232d678684Andreas Huberuint32_t SampleTable::getCompositionTimeOffset(uint32_t sampleIndex) { 86089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return mCompositionDeltaLookup->getCompositionTimeOffset(sampleIndex); 8614931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber} 8624931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 86320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 86420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 865