SampleTable.cpp revision 599950efbb03b1672561d4cf2272504b879525e8
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 4389aa8fe4cb00d2f24260005b008602232d678684Andreas Huberstruct SampleTable::CompositionDeltaLookup { 4489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber CompositionDeltaLookup(); 4589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 4689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber void setEntries( 4789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *deltaEntries, size_t numDeltaEntries); 4889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 4989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t getCompositionTimeOffset(uint32_t sampleIndex); 5089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5189aa8fe4cb00d2f24260005b008602232d678684Andreas Huberprivate: 5289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex mLock; 5389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *mDeltaEntries; 5589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mNumDeltaEntries; 5689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 5789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mCurrentDeltaEntry; 5889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber size_t mCurrentEntrySampleIndex; 5989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 6089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(CompositionDeltaLookup); 6189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber}; 6289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 6389aa8fe4cb00d2f24260005b008602232d678684Andreas HuberSampleTable::CompositionDeltaLookup::CompositionDeltaLookup() 6489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber : mDeltaEntries(NULL), 6589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mNumDeltaEntries(0), 6689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry(0), 6789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex(0) { 6889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 6989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 7089aa8fe4cb00d2f24260005b008602232d678684Andreas Hubervoid SampleTable::CompositionDeltaLookup::setEntries( 7189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber const uint32_t *deltaEntries, size_t numDeltaEntries) { 7289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex::Autolock autolock(mLock); 7389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 7489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mDeltaEntries = deltaEntries; 7589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mNumDeltaEntries = numDeltaEntries; 7689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry = 0; 7789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex = 0; 7889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 7989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 8089aa8fe4cb00d2f24260005b008602232d678684Andreas Huberuint32_t SampleTable::CompositionDeltaLookup::getCompositionTimeOffset( 8189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t sampleIndex) { 8289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber Mutex::Autolock autolock(mLock); 8389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 8489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (mDeltaEntries == NULL) { 8589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return 0; 8689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 8789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 8889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (sampleIndex < mCurrentEntrySampleIndex) { 8989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentDeltaEntry = 0; 9089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex = 0; 9189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 9289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 9389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber while (mCurrentDeltaEntry < mNumDeltaEntries) { 9489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t sampleCount = mDeltaEntries[2 * mCurrentDeltaEntry]; 9589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber if (sampleIndex < mCurrentEntrySampleIndex + sampleCount) { 9689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return mDeltaEntries[2 * mCurrentDeltaEntry + 1]; 9789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 9889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 9989aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCurrentEntrySampleIndex += sampleCount; 10089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber ++mCurrentDeltaEntry; 10189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber } 10289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 10389aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return 0; 10489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber} 10589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 10689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber//////////////////////////////////////////////////////////////////////////////// 10789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 108693d271e62a3726689ff68f4505ba49228eb94b2Andreas HuberSampleTable::SampleTable(const sp<DataSource> &source) 10920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber : mDataSource(source), 11020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetOffset(-1), 11120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetType(0), 11220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumChunkOffsets(0), 11320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleToChunkOffset(-1), 11420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleToChunkOffsets(0), 11520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeOffset(-1), 11620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeFieldSize(0), 11720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize(0), 11820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleSizes(0), 11920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSampleCount(0), 12020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSample(NULL), 1214678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries(NULL), 1224931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries(NULL), 1234931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mNumCompositionTimeDeltaEntries(0), 12489aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup(new CompositionDeltaLookup), 12520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSyncSampleOffset(-1), 126c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mNumSyncSamples(0), 1278bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples(NULL), 1288bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mLastSyncSampleIndex(0), 129c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries(NULL) { 130c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleIterator = new SampleIterator(this); 13120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 13220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 13320111aa043c5f404472bc63b90bc5aad906b1101Andreas HuberSampleTable::~SampleTable() { 134c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber delete[] mSampleToChunkEntries; 135c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries = NULL; 136c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 1378bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber delete[] mSyncSamples; 1388bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples = NULL; 1398bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 14089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber delete mCompositionDeltaLookup; 14189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup = NULL; 14289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 1434931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber delete[] mCompositionTimeDeltaEntries; 1444931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries = NULL; 1454931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 1464678a6dc5f09008481524949a9667af5a6190374Andreas Huber delete[] mSampleTimeEntries; 1474678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries = NULL; 1484678a6dc5f09008481524949a9667af5a6190374Andreas Huber 14920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber delete[] mTimeToSample; 15020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSample = NULL; 151c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 152c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber delete mSampleIterator; 153c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleIterator = NULL; 15420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 15520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 156169c286ed166499c5099d2b336967e0bf3d25551Andreas Huberbool SampleTable::isValid() const { 157169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber return mChunkOffsetOffset >= 0 158169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber && mSampleToChunkOffset >= 0 159169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber && mSampleSizeOffset >= 0 160169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber && mTimeToSample != NULL; 161169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber} 162169c286ed166499c5099d2b336967e0bf3d25551Andreas Huber 16320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setChunkOffsetParams( 164c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong uint32_t type, off64_t data_offset, size_t data_size) { 16520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mChunkOffsetOffset >= 0) { 16620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 16720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 16820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1690c89199745bc1bf05b997fc7c342017807676b6fAndreas Huber CHECK(type == kChunkOffsetType32 || type == kChunkOffsetType64); 17020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 17120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetOffset = data_offset; 17220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mChunkOffsetType = type; 17320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 17420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8) { 17520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 17620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 17720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 17820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 17934769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 18020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 18120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 18220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 18320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 18420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 18520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 18620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 18720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 18820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 18920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumChunkOffsets = U32_AT(&header[4]); 19020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 19120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mChunkOffsetType == kChunkOffsetType32) { 19220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8 + mNumChunkOffsets * 4) { 19320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 19420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 19520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } else { 19620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8 + mNumChunkOffsets * 8) { 19720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 19820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 19920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 20020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 20120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 20220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 20320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 20420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setSampleToChunkParams( 205c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t data_offset, size_t data_size) { 20620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleToChunkOffset >= 0) { 20720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 20820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 20920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 21020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleToChunkOffset = data_offset; 21120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 21220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8) { 21320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 21420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 21520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 21620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 21734769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 21820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 21920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 22020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 22120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 22220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 22320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 22420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 22520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 22620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 22720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleToChunkOffsets = U32_AT(&header[4]); 22820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 22920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 8 + mNumSampleToChunkOffsets * 12) { 23020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 23120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 23220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 233c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries = 234c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber new SampleToChunkEntry[mNumSampleToChunkOffsets]; 235c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 236c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber for (uint32_t i = 0; i < mNumSampleToChunkOffsets; ++i) { 237c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint8_t buffer[12]; 238c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (mDataSource->readAt( 239c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkOffset + 8 + i * 12, buffer, sizeof(buffer)) 240c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber != (ssize_t)sizeof(buffer)) { 241c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return ERROR_IO; 242c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 243c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 244c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber CHECK(U32_AT(buffer) >= 1); // chunk index is 1 based in the spec. 245c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 246c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber // We want the chunk index to be 0-based. 247c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].startChunk = U32_AT(buffer) - 1; 248c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].samplesPerChunk = U32_AT(&buffer[4]); 249c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber mSampleToChunkEntries[i].chunkDesc = U32_AT(&buffer[8]); 250c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 251c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 25220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 25320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 25420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 25520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setSampleSizeParams( 256c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong uint32_t type, off64_t data_offset, size_t data_size) { 25720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleSizeOffset >= 0) { 25820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 25920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 26020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2610c89199745bc1bf05b997fc7c342017807676b6fAndreas Huber CHECK(type == kSampleSizeType32 || type == kSampleSizeTypeCompact); 26220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 26320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeOffset = data_offset; 26420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 26520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12) { 26620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 26720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 26820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 26920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[12]; 27034769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 27120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 27220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 27320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 27420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 27520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 27620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 27720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 27820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 27920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 28020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize = U32_AT(&header[4]); 28120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSampleSizes = U32_AT(&header[8]); 28220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 28320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (type == kSampleSizeType32) { 28420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSampleSizeFieldSize = 32; 28520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 28620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mDefaultSampleSize != 0) { 28720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 28820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 28920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 29020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12 + mNumSampleSizes * 4) { 29120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 29220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 29320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } else { 29420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if ((mDefaultSampleSize & 0xffffff00) != 0) { 29520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // The high 24 bits are reserved and must be 0. 29620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 29720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 29820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2999f753df58a70f20db220af31cb202bbd21b30f36Andreas Huber mSampleSizeFieldSize = mDefaultSampleSize & 0xff; 30020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mDefaultSampleSize = 0; 30120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 30220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSampleSizeFieldSize != 4 && mSampleSizeFieldSize != 8 30320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber && mSampleSizeFieldSize != 16) { 30420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 30520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 30620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 30720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (data_size < 12 + (mNumSampleSizes * mSampleSizeFieldSize + 4) / 8) { 30820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 30920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 31020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 31120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 31220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 31320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 31420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 31520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::setTimeToSampleParams( 316c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t data_offset, size_t data_size) { 31720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mTimeToSample != NULL || data_size < 8) { 31820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 31920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 32020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 32120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 32234769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 32320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 32420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 32520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 32620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 32720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 32820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 32920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 33020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 33120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 33220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSampleCount = U32_AT(&header[4]); 33320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSample = new uint32_t[mTimeToSampleCount * 2]; 33420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 33520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber size_t size = sizeof(uint32_t) * mTimeToSampleCount * 2; 33634769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 33720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset + 8, mTimeToSample, size) < (ssize_t)size) { 33820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 33920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 34020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 34120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber for (uint32_t i = 0; i < mTimeToSampleCount * 2; ++i) { 34220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mTimeToSample[i] = ntohl(mTimeToSample[i]); 34320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 34420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 34520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 34620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 34720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3484931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huberstatus_t SampleTable::setCompositionTimeToSampleParams( 3494931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber off64_t data_offset, size_t data_size) { 350df64d15042bbd5e0e4933ac49bf3c177dd94752cSteve Block ALOGI("There are reordered frames present."); 3514931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3524931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (mCompositionTimeDeltaEntries != NULL || data_size < 8) { 3534931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 3544931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3554931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3564931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber uint8_t header[8]; 3574931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (mDataSource->readAt( 3584931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber data_offset, header, sizeof(header)) 3594931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber < (ssize_t)sizeof(header)) { 3604931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_IO; 3614931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3624931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3634931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (U32_AT(header) != 0) { 3644931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber // Expected version = 0, flags = 0. 3654931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 3664931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3674931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3684931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber size_t numEntries = U32_AT(&header[4]); 3694931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3704931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (data_size != (numEntries + 1) * 8) { 3714931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_MALFORMED; 3724931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3734931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3744931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mNumCompositionTimeDeltaEntries = numEntries; 3754931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries = new uint32_t[2 * numEntries]; 3764931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3774931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber if (mDataSource->readAt( 3784931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber data_offset + 8, mCompositionTimeDeltaEntries, numEntries * 8) 3794931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber < (ssize_t)numEntries * 8) { 3804931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber delete[] mCompositionTimeDeltaEntries; 3814931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries = NULL; 3824931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3834931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return ERROR_IO; 3844931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3854931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 3864931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber for (size_t i = 0; i < 2 * numEntries; ++i) { 3874931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber mCompositionTimeDeltaEntries[i] = ntohl(mCompositionTimeDeltaEntries[i]); 3884931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber } 3894931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 39089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup->setEntries( 39189aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionTimeDeltaEntries, mNumCompositionTimeDeltaEntries); 39289aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 3934931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber return OK; 3944931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber} 3954931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 396c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dongstatus_t SampleTable::setSyncSampleParams(off64_t data_offset, size_t data_size) { 39720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSyncSampleOffset >= 0 || data_size < 8) { 39820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 39920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 40020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 40120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mSyncSampleOffset = data_offset; 40220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 40320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint8_t header[8]; 40434769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huber if (mDataSource->readAt( 40520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber data_offset, header, sizeof(header)) < (ssize_t)sizeof(header)) { 40620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_IO; 40720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 40820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 40920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (U32_AT(header) != 0) { 41020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // Expected version = 0, flags = 0. 41120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return ERROR_MALFORMED; 41220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 41320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 41420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mNumSyncSamples = U32_AT(&header[4]); 41520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 41620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mNumSyncSamples < 2) { 4173856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("Table of sync samples is empty or has only a single entry!"); 41820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 4198bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 4208bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples = new uint32_t[mNumSyncSamples]; 4218bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber size_t size = mNumSyncSamples * sizeof(uint32_t); 4228bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (mDataSource->readAt(mSyncSampleOffset + 8, mSyncSamples, size) 4238bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber != (ssize_t)size) { 4248bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber return ERROR_IO; 4258bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 4268bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 4278bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber for (size_t i = 0; i < mNumSyncSamples; ++i) { 4288bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mSyncSamples[i] = ntohl(mSyncSamples[i]) - 1; 4298bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 4308bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 43120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 43220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 43320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 43420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberuint32_t SampleTable::countChunkOffsets() const { 43520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return mNumChunkOffsets; 43620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 43720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 43820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberuint32_t SampleTable::countSamples() const { 43920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return mNumSampleSizes; 44020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 44120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 44220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t SampleTable::getMaxSampleSize(size_t *max_size) { 44320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex::Autolock autoLock(mLock); 44420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 44520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *max_size = 0; 44620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 44720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber for (uint32_t i = 0; i < mNumSampleSizes; ++i) { 44820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber size_t sample_size; 449c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err = getSampleSize_l(i, &sample_size); 450da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 45120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (err != OK) { 45220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return err; 45320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 45420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 45520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (sample_size > *max_size) { 45620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *max_size = sample_size; 45720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 45820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 45920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 46020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 46120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 46220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 463da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huberuint32_t abs_difference(uint32_t time1, uint32_t time2) { 464da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber return time1 > time2 ? time1 - time2 : time2 - time1; 465da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber} 466da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 4674678a6dc5f09008481524949a9667af5a6190374Andreas Huber// static 4684678a6dc5f09008481524949a9667af5a6190374Andreas Huberint SampleTable::CompareIncreasingTime(const void *_a, const void *_b) { 4694678a6dc5f09008481524949a9667af5a6190374Andreas Huber const SampleTimeEntry *a = (const SampleTimeEntry *)_a; 4704678a6dc5f09008481524949a9667af5a6190374Andreas Huber const SampleTimeEntry *b = (const SampleTimeEntry *)_b; 4714931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 4724678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (a->mCompositionTime < b->mCompositionTime) { 4734678a6dc5f09008481524949a9667af5a6190374Andreas Huber return -1; 4744678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else if (a->mCompositionTime > b->mCompositionTime) { 4754678a6dc5f09008481524949a9667af5a6190374Andreas Huber return 1; 4764678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 477abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 4784678a6dc5f09008481524949a9667af5a6190374Andreas Huber return 0; 4794678a6dc5f09008481524949a9667af5a6190374Andreas Huber} 4804678a6dc5f09008481524949a9667af5a6190374Andreas Huber 4814678a6dc5f09008481524949a9667af5a6190374Andreas Hubervoid SampleTable::buildSampleEntriesTable() { 48220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex::Autolock autoLock(mLock); 48320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4844678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (mSampleTimeEntries != NULL) { 4854678a6dc5f09008481524949a9667af5a6190374Andreas Huber return; 4864678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 4874678a6dc5f09008481524949a9667af5a6190374Andreas Huber 4884678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries = new SampleTimeEntry[mNumSampleSizes]; 4894678a6dc5f09008481524949a9667af5a6190374Andreas Huber 4904678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t sampleIndex = 0; 4914678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t sampleTime = 0; 4924678a6dc5f09008481524949a9667af5a6190374Andreas Huber 49320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber for (uint32_t i = 0; i < mTimeToSampleCount; ++i) { 49420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint32_t n = mTimeToSample[2 * i]; 49520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber uint32_t delta = mTimeToSample[2 * i + 1]; 49620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4974678a6dc5f09008481524949a9667af5a6190374Andreas Huber for (uint32_t j = 0; j < n; ++j) { 49865a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber if (sampleIndex < mNumSampleSizes) { 49965a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // Technically this should always be the case if the file 50065a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // is well-formed, but you know... there's (gasp) malformed 50165a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber // content out there. 50220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 50365a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber mSampleTimeEntries[sampleIndex].mSampleIndex = sampleIndex; 504abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 50589aa8fe4cb00d2f24260005b008602232d678684Andreas Huber uint32_t compTimeDelta = 50689aa8fe4cb00d2f24260005b008602232d678684Andreas Huber mCompositionDeltaLookup->getCompositionTimeOffset( 50789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber sampleIndex); 50889aa8fe4cb00d2f24260005b008602232d678684Andreas Huber 50965a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber mSampleTimeEntries[sampleIndex].mCompositionTime = 51089aa8fe4cb00d2f24260005b008602232d678684Andreas Huber sampleTime + compTimeDelta; 51165a2670e84f44f6cdd80d625a7248fc65319ab8cAndreas Huber } 5124678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5134678a6dc5f09008481524949a9667af5a6190374Andreas Huber ++sampleIndex; 5144678a6dc5f09008481524949a9667af5a6190374Andreas Huber sampleTime += delta; 5154678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5164678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5174678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5184678a6dc5f09008481524949a9667af5a6190374Andreas Huber qsort(mSampleTimeEntries, mNumSampleSizes, sizeof(SampleTimeEntry), 5194678a6dc5f09008481524949a9667af5a6190374Andreas Huber CompareIncreasingTime); 5204678a6dc5f09008481524949a9667af5a6190374Andreas Huber} 5214678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5224678a6dc5f09008481524949a9667af5a6190374Andreas Huberstatus_t SampleTable::findSampleAtTime( 523599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint64_t req_time, uint64_t scale_num, uint64_t scale_den, 524599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t *sample_index, uint32_t flags) { 5254678a6dc5f09008481524949a9667af5a6190374Andreas Huber buildSampleEntriesTable(); 5264678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5274678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t left = 0; 528599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t right = mNumSampleSizes - 1; 529599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar while (left <= right) { 530599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t center = left + (right - left) / 2; 531599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint64_t centerTime = 532599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar getSampleTime(center, scale_num, scale_den); 5334678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5344678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (req_time < centerTime) { 535599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar right = center - 1; 5364678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else if (req_time > centerTime) { 5374678a6dc5f09008481524949a9667af5a6190374Andreas Huber left = center + 1; 5384678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else { 539599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar *sample_index = mSampleTimeEntries[center].mSampleIndex; 540599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return OK; 5414678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5424678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5434678a6dc5f09008481524949a9667af5a6190374Andreas Huber 544599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t closestIndex = left; 545599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 546599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (closestIndex == mNumSampleSizes) { 547a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber if (flags == kFlagAfter) { 548a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber return ERROR_OUT_OF_RANGE; 549a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber } 550599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar flags = kFlagBefore; 551599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } else if (closestIndex == 0) { 552599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (flags == kFlagBefore) { 553599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // normally we should return out of range, but that is 554599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // treated as end-of-stream. instead return first sample 555599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // 556599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // return ERROR_OUT_OF_RANGE; 557599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 558599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar flags = kFlagAfter; 5594678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5604678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5614678a6dc5f09008481524949a9667af5a6190374Andreas Huber switch (flags) { 5624678a6dc5f09008481524949a9667af5a6190374Andreas Huber case kFlagBefore: 5634678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 564599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar --closestIndex; 5654678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 5664678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 56720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5684678a6dc5f09008481524949a9667af5a6190374Andreas Huber case kFlagAfter: 5694678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 570599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // nothing to do 5714678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 57220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 57320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5744678a6dc5f09008481524949a9667af5a6190374Andreas Huber default: 5754678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 5764678a6dc5f09008481524949a9667af5a6190374Andreas Huber CHECK(flags == kFlagClosest); 577599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // pick closest based on timestamp. use abs_difference for safety 578599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (abs_difference( 579599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar getSampleTime(closestIndex, scale_num, scale_den), req_time) > 580599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar abs_difference( 581599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar req_time, getSampleTime(closestIndex - 1, scale_num, scale_den))) { 582599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar --closestIndex; 5834678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5844678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 5854678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 58620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 58720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5884678a6dc5f09008481524949a9667af5a6190374Andreas Huber *sample_index = mSampleTimeEntries[closestIndex].mSampleIndex; 5894678a6dc5f09008481524949a9667af5a6190374Andreas Huber return OK; 59020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 59120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 592abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huberstatus_t SampleTable::findSyncSampleNear( 593abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t start_sample_index, uint32_t *sample_index, uint32_t flags) { 594abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber Mutex::Autolock autoLock(mLock); 595abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 59620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *sample_index = 0; 59720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 59820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSyncSampleOffset < 0) { 59920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // All samples are sync-samples. 60020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *sample_index = start_sample_index; 60120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 60220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 60320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 604abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (mNumSyncSamples == 0) { 605abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber *sample_index = 0; 606abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return OK; 607abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 608da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 609abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t left = 0; 610599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t right = mNumSyncSamples - 1; 611599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar while (left <= right) { 6128f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t center = left + (right - left) / 2; 6138f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t x = mSyncSamples[center]; 61420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6158f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber if (start_sample_index < x) { 616599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar right = center - 1; 6178f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } else if (start_sample_index > x) { 6188f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber left = center + 1; 6198f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } else { 620599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar *sample_index = x; 621599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return OK; 62220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 623f53263a7d580fb550dbc6c8d4f104119beb82ad7James Dong } 624599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 6258d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng if (left == mNumSyncSamples) { 6268d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng if (flags == kFlagAfter) { 62729357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("tried to find a sync frame after the last one: %d", left); 6288d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng return ERROR_OUT_OF_RANGE; 6298d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng } 630599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar flags = kFlagBefore; 6318d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng } 632599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar else if (left == 0) { 633599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (flags == kFlagBefore) { 634599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar ALOGE("tried to find a sync frame before the first one: %d", left); 635abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 636599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // normally we should return out of range, but that is 637599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // treated as end-of-stream. instead seek to first sync 638599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // 639599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // return ERROR_OUT_OF_RANGE; 640abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 641599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar flags = kFlagAfter; 642abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 643abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 644599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // Now ssi[left - 1] <(=) start_sample_index <= ssi[left] 645abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber switch (flags) { 646abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber case kFlagBefore: 647abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber { 648599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar --left; 649abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 650abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 651abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber case kFlagAfter: 652abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber { 653599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // nothing to do 654abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 655abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 656abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber default: 657599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar { 658599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // this route is not used, but implement it nonetheless 659599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar CHECK(flags == kFlagClosest); 660599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 661599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar status_t err = mSampleIterator->seekTo(start_sample_index); 662599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (err != OK) { 663599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return err; 664599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 665599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t sample_time = mSampleIterator->getSampleTime(); 666599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 667599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar err = mSampleIterator->seekTo(mSyncSamples[left]); 668599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (err != OK) { 669599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return err; 670599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 671599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t upper_time = mSampleIterator->getSampleTime(); 672599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 673599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar err = mSampleIterator->seekTo(mSyncSamples[left - 1]); 674599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (err != OK) { 675599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar return err; 676599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 677599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar uint32_t lower_time = mSampleIterator->getSampleTime(); 678599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar 679599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar // use abs_difference for safety 680599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar if (abs_difference(upper_time, sample_time) > 681599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar abs_difference(sample_time, lower_time)) { 682599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar --left; 683599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 684abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 685599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar } 68620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 68720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 688599950efbb03b1672561d4cf2272504b879525e8Lajos Molnar *sample_index = mSyncSamples[left]; 68920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 69020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 69120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6927e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huberstatus_t SampleTable::findThumbnailSample(uint32_t *sample_index) { 693c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber Mutex::Autolock autoLock(mLock); 694c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 6957e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (mSyncSampleOffset < 0) { 6967e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // All samples are sync-samples. 6977e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber *sample_index = 0; 6987e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return OK; 6997e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7007e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7017e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber uint32_t bestSampleIndex = 0; 7027e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t maxSampleSize = 0; 7037e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7047e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber static const size_t kMaxNumSyncSamplesToScan = 20; 7057e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7067e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // Consider the first kMaxNumSyncSamplesToScan sync samples and 7077e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // pick the one with the largest (compressed) size as the thumbnail. 7087e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7097e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t numSamplesToScan = mNumSyncSamples; 7107e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (numSamplesToScan > kMaxNumSyncSamplesToScan) { 7117e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber numSamplesToScan = kMaxNumSyncSamplesToScan; 7127e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7137e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7147e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber for (size_t i = 0; i < numSamplesToScan; ++i) { 7158bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber uint32_t x = mSyncSamples[i]; 7167e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7177e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // Now x is a sample index. 7187e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t sampleSize; 719c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err = getSampleSize_l(x, &sampleSize); 7207e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (err != OK) { 7217e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return err; 7227e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7237e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7247e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (i == 0 || sampleSize > maxSampleSize) { 7257e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber bestSampleIndex = x; 7267e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber maxSampleSize = sampleSize; 7277e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7287e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7297e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7307e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber *sample_index = bestSampleIndex; 7317e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7327e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return OK; 7337e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber} 7347e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 735c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberstatus_t SampleTable::getSampleSize_l( 736c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint32_t sampleIndex, size_t *sampleSize) { 737c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return mSampleIterator->getSampleSizeDirect( 738c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber sampleIndex, sampleSize); 739c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber} 740c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 741c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberstatus_t SampleTable::getMetaDataForSample( 742c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint32_t sampleIndex, 743c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t *offset, 744c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber size_t *size, 7454678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t *compositionTime, 746170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih bool *isSyncSample, 747170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih uint32_t *sampleDuration) { 748c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber Mutex::Autolock autoLock(mLock); 749c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 750c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err; 751c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if ((err = mSampleIterator->seekTo(sampleIndex)) != OK) { 752c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return err; 753c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 754c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 755c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (offset) { 756c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber *offset = mSampleIterator->getSampleOffset(); 757c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 758c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 759c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (size) { 760c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber *size = mSampleIterator->getSampleSize(); 761c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 762c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 7634678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (compositionTime) { 7644678a6dc5f09008481524949a9667af5a6190374Andreas Huber *compositionTime = mSampleIterator->getSampleTime(); 765c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 766c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 7678bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (isSyncSample) { 7688bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = false; 7698bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (mSyncSampleOffset < 0) { 7708bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber // Every sample is a sync sample. 7718bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = true; 7728bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } else { 7738bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber size_t i = (mLastSyncSampleIndex < mNumSyncSamples) 7748bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber && (mSyncSamples[mLastSyncSampleIndex] <= sampleIndex) 7758bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber ? mLastSyncSampleIndex : 0; 7768bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 7778bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber while (i < mNumSyncSamples && mSyncSamples[i] < sampleIndex) { 7788bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber ++i; 7798bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 7808bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 7818bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (i < mNumSyncSamples && mSyncSamples[i] == sampleIndex) { 7828bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = true; 7838bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 7848bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 7858bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mLastSyncSampleIndex = i; 7868bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 7878bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 7888bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 789170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih if (sampleDuration) { 790170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih *sampleDuration = mSampleIterator->getSampleDuration(); 791170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih } 792170056540e9ce65261b45efd15f67e72e2df1bedRobert Shih 793c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return OK; 794c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber} 795c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 79689aa8fe4cb00d2f24260005b008602232d678684Andreas Huberuint32_t SampleTable::getCompositionTimeOffset(uint32_t sampleIndex) { 79789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return mCompositionDeltaLookup->getCompositionTimeOffset(sampleIndex); 7984931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber} 7994931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 80020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 80120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 802