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( 5234678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t req_time, uint32_t *sample_index, uint32_t flags) { 5244678a6dc5f09008481524949a9667af5a6190374Andreas Huber buildSampleEntriesTable(); 5254678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5264678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t left = 0; 5274678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t right = mNumSampleSizes; 5284678a6dc5f09008481524949a9667af5a6190374Andreas Huber while (left < right) { 5294678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t center = (left + right) / 2; 5304678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t centerTime = mSampleTimeEntries[center].mCompositionTime; 5314678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5324678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (req_time < centerTime) { 5334678a6dc5f09008481524949a9667af5a6190374Andreas Huber right = center; 5344678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else if (req_time > centerTime) { 5354678a6dc5f09008481524949a9667af5a6190374Andreas Huber left = center + 1; 5364678a6dc5f09008481524949a9667af5a6190374Andreas Huber } else { 5374678a6dc5f09008481524949a9667af5a6190374Andreas Huber left = center; 5384678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 5394678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5404678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5414678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5424678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (left == mNumSampleSizes) { 543a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber if (flags == kFlagAfter) { 544a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber return ERROR_OUT_OF_RANGE; 545a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber } 546a488c7daf91357611fcdbff7a32e5a73ec630070Andreas Huber 5474678a6dc5f09008481524949a9667af5a6190374Andreas Huber --left; 5484678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5494678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5504678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t closestIndex = left; 551abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 5524678a6dc5f09008481524949a9667af5a6190374Andreas Huber switch (flags) { 5534678a6dc5f09008481524949a9667af5a6190374Andreas Huber case kFlagBefore: 5544678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 5554678a6dc5f09008481524949a9667af5a6190374Andreas Huber while (closestIndex > 0 5564678a6dc5f09008481524949a9667af5a6190374Andreas Huber && mSampleTimeEntries[closestIndex].mCompositionTime 5574678a6dc5f09008481524949a9667af5a6190374Andreas Huber > req_time) { 5584678a6dc5f09008481524949a9667af5a6190374Andreas Huber --closestIndex; 55920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 5604678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 5614678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 56220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5634678a6dc5f09008481524949a9667af5a6190374Andreas Huber case kFlagAfter: 5644678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 5654678a6dc5f09008481524949a9667af5a6190374Andreas Huber while (closestIndex + 1 < mNumSampleSizes 5664678a6dc5f09008481524949a9667af5a6190374Andreas Huber && mSampleTimeEntries[closestIndex].mCompositionTime 5674678a6dc5f09008481524949a9667af5a6190374Andreas Huber < req_time) { 5684678a6dc5f09008481524949a9667af5a6190374Andreas Huber ++closestIndex; 5694678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5704678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 57120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 57220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5734678a6dc5f09008481524949a9667af5a6190374Andreas Huber default: 5744678a6dc5f09008481524949a9667af5a6190374Andreas Huber { 5754678a6dc5f09008481524949a9667af5a6190374Andreas Huber CHECK(flags == kFlagClosest); 5764678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5774678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (closestIndex > 0) { 5784678a6dc5f09008481524949a9667af5a6190374Andreas Huber // Check left neighbour and pick closest. 5794678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t absdiff1 = 5804678a6dc5f09008481524949a9667af5a6190374Andreas Huber abs_difference( 5814678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries[closestIndex].mCompositionTime, 5824678a6dc5f09008481524949a9667af5a6190374Andreas Huber req_time); 5834678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5844678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t absdiff2 = 5854678a6dc5f09008481524949a9667af5a6190374Andreas Huber abs_difference( 5864678a6dc5f09008481524949a9667af5a6190374Andreas Huber mSampleTimeEntries[closestIndex - 1].mCompositionTime, 5874678a6dc5f09008481524949a9667af5a6190374Andreas Huber req_time); 5884678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5894678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (absdiff1 > absdiff2) { 5904678a6dc5f09008481524949a9667af5a6190374Andreas Huber closestIndex = closestIndex - 1; 5914678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5924678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 5934678a6dc5f09008481524949a9667af5a6190374Andreas Huber 5944678a6dc5f09008481524949a9667af5a6190374Andreas Huber break; 5954678a6dc5f09008481524949a9667af5a6190374Andreas Huber } 59620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 59720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5984678a6dc5f09008481524949a9667af5a6190374Andreas Huber *sample_index = mSampleTimeEntries[closestIndex].mSampleIndex; 5994678a6dc5f09008481524949a9667af5a6190374Andreas Huber 6004678a6dc5f09008481524949a9667af5a6190374Andreas Huber return OK; 60120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 60220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 603abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huberstatus_t SampleTable::findSyncSampleNear( 604abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t start_sample_index, uint32_t *sample_index, uint32_t flags) { 605abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber Mutex::Autolock autoLock(mLock); 606abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 60720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *sample_index = 0; 60820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 60920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mSyncSampleOffset < 0) { 61020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber // All samples are sync-samples. 61120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber *sample_index = start_sample_index; 61220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 61320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 61420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 615abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (mNumSyncSamples == 0) { 616abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber *sample_index = 0; 617abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return OK; 618abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 619da76c64dee7d95c967e2841302300cfb081e67b2Andreas Huber 620abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t left = 0; 6218f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t right = mNumSyncSamples; 6228f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber while (left < right) { 6238f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t center = left + (right - left) / 2; 6248f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t x = mSyncSamples[center]; 62520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 6268f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber if (start_sample_index < x) { 6278f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber right = center; 6288f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } else if (start_sample_index > x) { 6298f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber left = center + 1; 6308f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } else { 6318f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber left = center; 63220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber break; 63320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 634f53263a7d580fb550dbc6c8d4f104119beb82ad7James Dong } 6358d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng if (left == mNumSyncSamples) { 6368d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng if (flags == kFlagAfter) { 63729357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("tried to find a sync frame after the last one: %d", left); 6388d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng return ERROR_OUT_OF_RANGE; 6398d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng } 6408d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng left = left - 1; 6418d0dd8b46163ec7b42e2051c441ae2bf96dd9aecHong Teng } 642abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 6438f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // Now ssi[left] is the sync sample index just before (or at) 6448f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // start_sample_index. 6458f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // Also start_sample_index < ssi[left + 1], if left + 1 < mNumSyncSamples. 646abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 6478f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber uint32_t x = mSyncSamples[left]; 648abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 649abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (left + 1 < mNumSyncSamples) { 6508bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber uint32_t y = mSyncSamples[left + 1]; 651abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 652abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber // our sample lies between sync samples x and y. 653abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 654abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber status_t err = mSampleIterator->seekTo(start_sample_index); 655abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (err != OK) { 656abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return err; 657abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 658abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 659abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t sample_time = mSampleIterator->getSampleTime(); 660abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 661abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber err = mSampleIterator->seekTo(x); 662abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (err != OK) { 663abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return err; 664abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 665abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t x_time = mSampleIterator->getSampleTime(); 666abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 667abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber err = mSampleIterator->seekTo(y); 668abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (err != OK) { 669abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return err; 670abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 671abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 672abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber uint32_t y_time = mSampleIterator->getSampleTime(); 673abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 674abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (abs_difference(x_time, sample_time) 675abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber > abs_difference(y_time, sample_time)) { 676abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber // Pick the sync sample closest (timewise) to the start-sample. 677abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber x = y; 678abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber ++left; 679abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 680abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 681abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 682abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber switch (flags) { 683abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber case kFlagBefore: 684abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber { 685abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (x > start_sample_index) { 686abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber CHECK(left > 0); 687abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 6888f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber x = mSyncSamples[left - 1]; 689abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 6908f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber if (x > start_sample_index) { 6918f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // The table of sync sample indices was not sorted 6928f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // properly. 6938f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber return ERROR_MALFORMED; 6948f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } 695abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 696abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 697abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 698abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 699abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber case kFlagAfter: 700abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber { 701abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (x < start_sample_index) { 702abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber if (left + 1 >= mNumSyncSamples) { 703abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber return ERROR_OUT_OF_RANGE; 704abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 705abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 7068bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber x = mSyncSamples[left + 1]; 707abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 7088f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber if (x < start_sample_index) { 7098f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // The table of sync sample indices was not sorted 7108f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber // properly. 7118f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber return ERROR_MALFORMED; 7128f76ebf90d0391a4baa8a921ed6e291dfc7891daAndreas Huber } 713abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 714abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 715abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 716abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber } 717abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber 718abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber default: 719abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber break; 72020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 72120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 722abd1f4f870925d6776dbe4b930b759a1ab6595caAndreas Huber *sample_index = x; 72320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 72420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return OK; 72520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 72620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 7277e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huberstatus_t SampleTable::findThumbnailSample(uint32_t *sample_index) { 728c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber Mutex::Autolock autoLock(mLock); 729c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 7307e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (mSyncSampleOffset < 0) { 7317e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // All samples are sync-samples. 7327e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber *sample_index = 0; 7337e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return OK; 7347e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7357e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7367e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber uint32_t bestSampleIndex = 0; 7377e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t maxSampleSize = 0; 7387e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7397e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber static const size_t kMaxNumSyncSamplesToScan = 20; 7407e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7417e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // Consider the first kMaxNumSyncSamplesToScan sync samples and 7427e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // pick the one with the largest (compressed) size as the thumbnail. 7437e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7447e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t numSamplesToScan = mNumSyncSamples; 7457e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (numSamplesToScan > kMaxNumSyncSamplesToScan) { 7467e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber numSamplesToScan = kMaxNumSyncSamplesToScan; 7477e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7487e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7497e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber for (size_t i = 0; i < numSamplesToScan; ++i) { 7508bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber uint32_t x = mSyncSamples[i]; 7517e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7527e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber // Now x is a sample index. 7537e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber size_t sampleSize; 754c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err = getSampleSize_l(x, &sampleSize); 7557e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (err != OK) { 7567e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return err; 7577e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7587e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7597e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber if (i == 0 || sampleSize > maxSampleSize) { 7607e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber bestSampleIndex = x; 7617e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber maxSampleSize = sampleSize; 7627e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7637e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber } 7647e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7657e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber *sample_index = bestSampleIndex; 7667e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 7677e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber return OK; 7687e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber} 7697e04dcf8d6784dd56f53aa90bf34431ab4f0710cAndreas Huber 770c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberstatus_t SampleTable::getSampleSize_l( 771c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint32_t sampleIndex, size_t *sampleSize) { 772c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return mSampleIterator->getSampleSizeDirect( 773c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber sampleIndex, sampleSize); 774c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber} 775c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 776c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huberstatus_t SampleTable::getMetaDataForSample( 777c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber uint32_t sampleIndex, 778c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t *offset, 779c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber size_t *size, 7804678a6dc5f09008481524949a9667af5a6190374Andreas Huber uint32_t *compositionTime, 7818bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber bool *isSyncSample) { 782c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber Mutex::Autolock autoLock(mLock); 783c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 784c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber status_t err; 785c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if ((err = mSampleIterator->seekTo(sampleIndex)) != OK) { 786c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return err; 787c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 788c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 789c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (offset) { 790c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber *offset = mSampleIterator->getSampleOffset(); 791c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 792c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 793c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber if (size) { 794c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber *size = mSampleIterator->getSampleSize(); 795c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 796c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 7974678a6dc5f09008481524949a9667af5a6190374Andreas Huber if (compositionTime) { 7984678a6dc5f09008481524949a9667af5a6190374Andreas Huber *compositionTime = mSampleIterator->getSampleTime(); 799c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber } 800c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 8018bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (isSyncSample) { 8028bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = false; 8038bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (mSyncSampleOffset < 0) { 8048bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber // Every sample is a sync sample. 8058bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = true; 8068bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } else { 8078bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber size_t i = (mLastSyncSampleIndex < mNumSyncSamples) 8088bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber && (mSyncSamples[mLastSyncSampleIndex] <= sampleIndex) 8098bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber ? mLastSyncSampleIndex : 0; 8108bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 8118bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber while (i < mNumSyncSamples && mSyncSamples[i] < sampleIndex) { 8128bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber ++i; 8138bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 8148bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 8158bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber if (i < mNumSyncSamples && mSyncSamples[i] == sampleIndex) { 8168bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber *isSyncSample = true; 8178bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 8188bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 8198bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber mLastSyncSampleIndex = i; 8208bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 8218bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber } 8228bf59e735760af0b6a85747fd90bf8cf1e5388d7Andreas Huber 823c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber return OK; 824c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber} 825c57b67905c2128ddadfeca96785ee1f593b6605aAndreas Huber 82689aa8fe4cb00d2f24260005b008602232d678684Andreas Huberuint32_t SampleTable::getCompositionTimeOffset(uint32_t sampleIndex) { 82789aa8fe4cb00d2f24260005b008602232d678684Andreas Huber return mCompositionDeltaLookup->getCompositionTimeOffset(sampleIndex); 8284931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber} 8294931bb5259d10c1fa01e7405fb7aaef58a8ffb22Andreas Huber 83020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 83120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 832