MPEG4Extractor.cpp revision cbb488d67826dd38f665bc8626b55dfe2f0e135f
1e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber/* 2e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * Copyright (C) 2009 The Android Open Source Project 3e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * 4e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * you may not use this file except in compliance with the License. 6e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * You may obtain a copy of the License at 7e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * 8e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * 10e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * Unless required by applicable law or agreed to in writing, software 11e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * See the License for the specific language governing permissions and 14e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber * limitations under the License. 15e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber */ 16e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 17e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#define LOG_TAG "MPEG4Extractor" 18e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <utils/Log.h> 19e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2057515f334bcc1f66f95e342bfcaa13bf9ca802adAndreas Huber#include "include/MPEG4Extractor.h" 21bd7b43bb02852e51b3000185fa66e10c56b120e0Andreas Huber#include "include/SampleTable.h" 22bd7b43bb02852e51b3000185fa66e10c56b120e0Andreas Huber 23e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <arpa/inet.h> 24e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 25e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <ctype.h> 26e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <stdint.h> 27e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <stdlib.h> 28e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <string.h> 29e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 30940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber#include <media/stagefright/foundation/ADebug.h> 31e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <media/stagefright/DataSource.h> 32d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber#include "include/ESDS.h" 33e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <media/stagefright/MediaBuffer.h> 34e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <media/stagefright/MediaBufferGroup.h> 35e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber#include <media/stagefright/MediaDefs.h> 36e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <media/stagefright/MediaSource.h> 37e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <media/stagefright/MetaData.h> 38e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <media/stagefright/Utils.h> 39e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#include <utils/String8.h> 40e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 41e46b7be812d68e49710b34048662cbf18e2a6550Andreas Hubernamespace android { 42e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 43e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberclass MPEG4Source : public MediaSource { 44e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberpublic: 45e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber // Caller retains ownership of both "dataSource" and "sampleTable". 46be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber MPEG4Source(const sp<MetaData> &format, 47be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber const sp<DataSource> &dataSource, 48fa8de752507feaca695123911915070c1ce463b2Andreas Huber int32_t timeScale, 49be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber const sp<SampleTable> &sampleTable); 50e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 51e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber virtual status_t start(MetaData *params = NULL); 52e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber virtual status_t stop(); 53e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 54e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber virtual sp<MetaData> getFormat(); 55e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 56e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber virtual status_t read( 57e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber MediaBuffer **buffer, const ReadOptions *options = NULL); 58e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 59be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huberprotected: 60be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber virtual ~MPEG4Source(); 61be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber 62e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberprivate: 63ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber Mutex mLock; 64ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber 65e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber sp<MetaData> mFormat; 66be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber sp<DataSource> mDataSource; 67e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber int32_t mTimescale; 68be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber sp<SampleTable> mSampleTable; 69e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint32_t mCurrentSampleIndex; 70e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 71e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber bool mIsAVC; 72db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber size_t mNALLengthSize; 73db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 74e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber bool mStarted; 75e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 76e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber MediaBufferGroup *mGroup; 77e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 78e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber MediaBuffer *mBuffer; 79e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 804f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber bool mWantsNALFragments; 81e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 828a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber uint8_t *mSrcBuffer; 838a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber 84db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber size_t parseNALSize(const uint8_t *data) const; 85db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 86e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber MPEG4Source(const MPEG4Source &); 87e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber MPEG4Source &operator=(const MPEG4Source &); 88e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber}; 89e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 90affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber// This custom data source wraps an existing one and satisfies requests 91affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber// falling entirely within a cached range from the cache while forwarding 92affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber// all remaining requests to the wrapped datasource. 93affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber// This is used to cache the full sampletable metadata for a single track, 94affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber// possibly wrapping multiple times to cover all tracks, i.e. 95affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber// Each MPEG4DataSource caches the sampletable metadata for a single track. 96affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 97affa99c52957685f5a5652ab5254b92e729651c7Andreas Huberstruct MPEG4DataSource : public DataSource { 98affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber MPEG4DataSource(const sp<DataSource> &source); 99affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 100affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber virtual status_t initCheck() const; 101b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong virtual ssize_t readAt(off64_t offset, void *data, size_t size); 102b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong virtual status_t getSize(off64_t *size); 103affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber virtual uint32_t flags(); 104affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 105b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong status_t setCachedRange(off64_t offset, size_t size); 106affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 107affa99c52957685f5a5652ab5254b92e729651c7Andreas Huberprotected: 108affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber virtual ~MPEG4DataSource(); 109affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 110affa99c52957685f5a5652ab5254b92e729651c7Andreas Huberprivate: 111affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber Mutex mLock; 112affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 113affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber sp<DataSource> mSource; 114b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t mCachedOffset; 115affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber size_t mCachedSize; 116affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber uint8_t *mCache; 117affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 118affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber void clearCache(); 119affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 120affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber MPEG4DataSource(const MPEG4DataSource &); 121affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber MPEG4DataSource &operator=(const MPEG4DataSource &); 122affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber}; 123affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 124affa99c52957685f5a5652ab5254b92e729651c7Andreas HuberMPEG4DataSource::MPEG4DataSource(const sp<DataSource> &source) 125affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber : mSource(source), 126affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCachedOffset(0), 127affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCachedSize(0), 128affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCache(NULL) { 129affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber} 130affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 131affa99c52957685f5a5652ab5254b92e729651c7Andreas HuberMPEG4DataSource::~MPEG4DataSource() { 132affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber clearCache(); 133affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber} 134affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 135affa99c52957685f5a5652ab5254b92e729651c7Andreas Hubervoid MPEG4DataSource::clearCache() { 136affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber if (mCache) { 137affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber free(mCache); 138affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCache = NULL; 139affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber } 140affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 141affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCachedOffset = 0; 142affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCachedSize = 0; 143affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber} 144affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 145affa99c52957685f5a5652ab5254b92e729651c7Andreas Huberstatus_t MPEG4DataSource::initCheck() const { 146affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber return mSource->initCheck(); 147affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber} 148affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 149b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dongssize_t MPEG4DataSource::readAt(off64_t offset, void *data, size_t size) { 150affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber Mutex::Autolock autoLock(mLock); 151affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 152affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber if (offset >= mCachedOffset 153affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber && offset + size <= mCachedOffset + mCachedSize) { 154affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber memcpy(data, &mCache[offset - mCachedOffset], size); 155affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber return size; 156affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber } 157affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 158affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber return mSource->readAt(offset, data, size); 159affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber} 160affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 161b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dongstatus_t MPEG4DataSource::getSize(off64_t *size) { 162affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber return mSource->getSize(size); 163affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber} 164affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 165affa99c52957685f5a5652ab5254b92e729651c7Andreas Huberuint32_t MPEG4DataSource::flags() { 166affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber return mSource->flags(); 167affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber} 168affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 169b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dongstatus_t MPEG4DataSource::setCachedRange(off64_t offset, size_t size) { 170affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber Mutex::Autolock autoLock(mLock); 171affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 172affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber clearCache(); 173affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 174affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCache = (uint8_t *)malloc(size); 175affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 176affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber if (mCache == NULL) { 177affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber return -ENOMEM; 178affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber } 179affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 180affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCachedOffset = offset; 181affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mCachedSize = size; 182affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 183affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber ssize_t err = mSource->readAt(mCachedOffset, mCache, mCachedSize); 184affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 185affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber if (err < (ssize_t)size) { 186affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber clearCache(); 187affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 188affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber return ERROR_IO; 189affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber } 190affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 191affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber return OK; 192affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber} 193affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 194affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber//////////////////////////////////////////////////////////////////////////////// 195affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 196e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberstatic void hexdump(const void *_data, size_t size) { 197e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber const uint8_t *data = (const uint8_t *)_data; 198e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber size_t offset = 0; 199e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while (offset < size) { 200e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf("0x%04x ", offset); 201e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 202e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber size_t n = size - offset; 203e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (n > 16) { 204e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber n = 16; 205e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 206e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 207e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber for (size_t i = 0; i < 16; ++i) { 208e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (i == 8) { 209e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf(" "); 210e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 211e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 212e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (offset + i < size) { 213e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf("%02x ", data[offset + i]); 214e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } else { 215e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf(" "); 216e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 217e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 218e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 219e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf(" "); 220e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 221e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber for (size_t i = 0; i < n; ++i) { 222e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (isprint(data[offset + i])) { 223e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf("%c", data[offset + i]); 224e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } else { 225e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf("."); 226e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 227e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 228e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 229e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf("\n"); 230e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 231e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber offset += 16; 232e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 233e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 234e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 235e6c409632f773e41f33188272a0072be9fcb783fAndreas Huberstatic const char *FourCC2MIME(uint32_t fourcc) { 236e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber switch (fourcc) { 237e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'p', '4', 'a'): 238e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber return MEDIA_MIMETYPE_AUDIO_AAC; 239e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 240e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 'a', 'm', 'r'): 241e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber return MEDIA_MIMETYPE_AUDIO_AMR_NB; 242e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2432a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber case FOURCC('s', 'a', 'w', 'b'): 244e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber return MEDIA_MIMETYPE_AUDIO_AMR_WB; 2452a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber 246e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'p', '4', 'v'): 247e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber return MEDIA_MIMETYPE_VIDEO_MPEG4; 248e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 249e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', '2', '6', '3'): 2500efdc95d59a51a130ce9d2515bcc9e2c01b52f14James Dong case FOURCC('h', '2', '6', '3'): 2510efdc95d59a51a130ce9d2515bcc9e2c01b52f14James Dong case FOURCC('H', '2', '6', '3'): 252e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber return MEDIA_MIMETYPE_VIDEO_H263; 253e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 254e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('a', 'v', 'c', '1'): 255e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber return MEDIA_MIMETYPE_VIDEO_AVC; 256e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 257e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber default: 2584f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber CHECK(!"should not be here."); 259e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return NULL; 260e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 261e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 262e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 263be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas HuberMPEG4Extractor::MPEG4Extractor(const sp<DataSource> &source) 264e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber : mDataSource(source), 265e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mHaveMetadata(false), 2661cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber mHasVideo(false), 267e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mFirstTrack(NULL), 268c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mLastTrack(NULL), 269d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mFileMetaData(new MetaData), 270d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mFirstSINF(NULL), 271d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mIsDrm(false) { 272e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 273e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 274e46b7be812d68e49710b34048662cbf18e2a6550Andreas HuberMPEG4Extractor::~MPEG4Extractor() { 275e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber Track *track = mFirstTrack; 276e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while (track) { 277e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber Track *next = track->next; 278e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 279e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber delete track; 280e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber track = next; 281e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 282e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mFirstTrack = mLastTrack = NULL; 283d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 284d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang SINF *sinf = mFirstSINF; 285d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang while (sinf) { 286d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang SINF *next = sinf->next; 287d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang delete sinf->IPMPData; 288d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang delete sinf; 289d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang sinf = next; 290d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 291d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mFirstSINF = NULL; 292e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 293e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2941cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Hubersp<MetaData> MPEG4Extractor::getMetaData() { 2951cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber status_t err; 2961cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber if ((err = readMetaData()) != OK) { 297c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return new MetaData; 2981cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber } 2991cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber 300c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return mFileMetaData; 3011cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber} 3021cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber 303be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Hubersize_t MPEG4Extractor::countTracks() { 304e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err; 305e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if ((err = readMetaData()) != OK) { 306be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber return 0; 307e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 308e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 309be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber size_t n = 0; 310e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber Track *track = mFirstTrack; 311e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while (track) { 312be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber ++n; 313e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber track = track->next; 314e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 315e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 316be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber return n; 317e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 318e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 319e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Hubersp<MetaData> MPEG4Extractor::getTrackMetaData( 320e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber size_t index, uint32_t flags) { 321e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err; 322e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if ((err = readMetaData()) != OK) { 323e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return NULL; 324e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 325e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 326e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber Track *track = mFirstTrack; 327e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while (index > 0) { 328e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (track == NULL) { 329e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return NULL; 330e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 331e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 332e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber track = track->next; 333e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber --index; 334e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 335e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 3362a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber if (track == NULL) { 3372a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber return NULL; 3382a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber } 3392a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber 340e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber if ((flags & kIncludeExtensiveMetaData) 341e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber && !track->includes_expensive_metadata) { 342e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber track->includes_expensive_metadata = true; 343e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber 344e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber const char *mime; 345e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber CHECK(track->meta->findCString(kKeyMIMEType, &mime)); 346e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber if (!strncasecmp("video/", mime, 6)) { 347e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber uint32_t sampleIndex; 348e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber uint32_t sampleTime; 349e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber if (track->sampleTable->findThumbnailSample(&sampleIndex) == OK 3501faa92a1e93f311e86dca483ed7702091137de66Andreas Huber && track->sampleTable->getMetaDataForSample( 3511faa92a1e93f311e86dca483ed7702091137de66Andreas Huber sampleIndex, NULL /* offset */, NULL /* size */, 3521faa92a1e93f311e86dca483ed7702091137de66Andreas Huber &sampleTime) == OK) { 353e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber track->meta->setInt64( 354e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber kKeyThumbnailTime, 355e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber ((int64_t)sampleTime * 1000000) / track->timescale); 356e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber } 357e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber } 358e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber } 359e981c33446a98d5ccc0d73c1a840696d77cf0732Andreas Huber 360e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return track->meta; 361e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 362e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 363e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberstatus_t MPEG4Extractor::readMetaData() { 364e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (mHaveMetadata) { 365e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return OK; 366e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 367e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 368b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t offset = 0; 369e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err; 370e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while ((err = parseChunk(&offset, 0)) == OK) { 371e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 3721cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber 373e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (mHaveMetadata) { 374c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (mHasVideo) { 375c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mFileMetaData->setCString(kKeyMIMEType, "video/mp4"); 376c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } else { 377c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mFileMetaData->setCString(kKeyMIMEType, "audio/mp4"); 378c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 379c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 380e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return OK; 381e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 382e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 383e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 384e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 385e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 386d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wangvoid MPEG4Extractor::setDrmFlag(bool flag) { 387d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mIsDrm = flag; 388d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang} 389d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 390d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wangchar* MPEG4Extractor::getDrmTrackInfo(size_t trackID, int *len) { 391d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mFirstSINF == NULL) { 392d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return NULL; 393d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 394d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 395d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang SINF *sinf = mFirstSINF; 396d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang while (sinf && (trackID != sinf->trackID)) { 397d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang sinf = sinf->next; 398d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 399d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 400d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (sinf == NULL) { 401d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return NULL; 402d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 403d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 404d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang *len = sinf->len; 405d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return sinf->IPMPData; 406d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang} 407d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 408d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang// Reads an encoded integer 7 bits at a time until it encounters the high bit clear. 409b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dongint32_t readSize(off64_t offset, 410d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang const sp<DataSource> DataSource, uint8_t *numOfBytes) { 411d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint32_t size = 0; 412d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint8_t data; 413d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang bool moreData = true; 414d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang *numOfBytes = 0; 415d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 416d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang while (moreData) { 417d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (DataSource->readAt(offset, &data, 1) < 1) { 418d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return -1; 419d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 420d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang offset ++; 421d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang moreData = (data >= 128) ? true : false; 422d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang size = (size << 7) | (data & 0x7f); // Take last 7 bits 423d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang (*numOfBytes) ++; 424d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 425d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 426d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return size; 427d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang} 428d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 429b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dongstatus_t MPEG4Extractor::parseDrmSINF(off64_t *offset, off64_t data_offset) { 430d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint8_t updateIdTag; 431d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mDataSource->readAt(data_offset, &updateIdTag, 1) < 1) { 432d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 433d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 434d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset ++; 435d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 436d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (0x01/*OBJECT_DESCRIPTOR_UPDATE_ID_TAG*/ != updateIdTag) { 437d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 438d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 439d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 440d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint8_t numOfBytes; 441d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang int32_t size = readSize(data_offset, mDataSource, &numOfBytes); 442d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (size < 0) { 443d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 444d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 445d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang int32_t classSize = size; 446d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset += numOfBytes; 447d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 448d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang while(size >= 11 ) { 449d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint8_t descriptorTag; 450d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mDataSource->readAt(data_offset, &descriptorTag, 1) < 1) { 451d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 452d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 453d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset ++; 454d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 455d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (0x11/*OBJECT_DESCRIPTOR_ID_TAG*/ != descriptorTag) { 456d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 457d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 458d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 459d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint8_t buffer[8]; 460d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang //ObjectDescriptorID and ObjectDescriptor url flag 461d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mDataSource->readAt(data_offset, buffer, 2) < 2) { 462d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 463d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 464d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset += 2; 465d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 466d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if ((buffer[1] >> 5) & 0x0001) { //url flag is set 467d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 468d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 469d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 470d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mDataSource->readAt(data_offset, buffer, 8) < 8) { 471d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 472d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 473d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset += 8; 474d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 475d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if ((0x0F/*ES_ID_REF_TAG*/ != buffer[1]) 476d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang || ( 0x0A/*IPMP_DESCRIPTOR_POINTER_ID_TAG*/ != buffer[5])) { 477d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 478d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 479d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 480d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang SINF *sinf = new SINF; 481d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang sinf->trackID = U16_AT(&buffer[3]); 482d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang sinf->IPMPDescriptorID = buffer[7]; 483d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang sinf->next = mFirstSINF; 484d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mFirstSINF = sinf; 485d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 486d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang size -= (8 + 2 + 1); 487d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 488d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 489d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (size != 0) { 490d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 491d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 492d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 493d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mDataSource->readAt(data_offset, &updateIdTag, 1) < 1) { 494d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 495d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 496d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset ++; 497d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 498d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if(0x05/*IPMP_DESCRIPTOR_UPDATE_ID_TAG*/ != updateIdTag) { 499d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 500d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 501d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 502d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang size = readSize(data_offset, mDataSource, &numOfBytes); 503d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (size < 0) { 504d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 505d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 506d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang classSize = size; 507d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset += numOfBytes; 508d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 509d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang while (size > 0) { 510d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint8_t tag; 511d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang int32_t dataLen; 512d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mDataSource->readAt(data_offset, &tag, 1) < 1) { 513d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 514d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 515d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset ++; 516d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 517d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (0x0B/*IPMP_DESCRIPTOR_ID_TAG*/ == tag) { 518d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint8_t id; 519d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang dataLen = readSize(data_offset, mDataSource, &numOfBytes); 520d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (dataLen < 0) { 521d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 522d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } else if (dataLen < 4) { 523d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 524d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 525d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset += numOfBytes; 526d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 527d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mDataSource->readAt(data_offset, &id, 1) < 1) { 528d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 529d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 530d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset ++; 531d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 532d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang SINF *sinf = mFirstSINF; 533d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang while (sinf && (sinf->IPMPDescriptorID != id)) { 534d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang sinf = sinf->next; 535d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 536d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (sinf == NULL) { 537d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 538d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 539d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang sinf->len = dataLen - 3; 540d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang sinf->IPMPData = new char[sinf->len]; 541d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 542d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (mDataSource->readAt(data_offset + 2, sinf->IPMPData, sinf->len) < sinf->len) { 543d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_IO; 544d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 545d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang data_offset += sinf->len; 546d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 547d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang size -= (dataLen + numOfBytes + 1); 548d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 549d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 550d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 551d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (size != 0) { 552d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 553d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 554d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 555d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return UNKNOWN_ERROR; // Return a dummy error. 556d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang} 557d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 558e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberstatic void MakeFourCCString(uint32_t x, char *s) { 559e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber s[0] = x >> 24; 560e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber s[1] = (x >> 16) & 0xff; 561e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber s[2] = (x >> 8) & 0xff; 562e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber s[3] = x & 0xff; 563e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber s[4] = '\0'; 564e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 565e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 566c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huberstruct PathAdder { 567c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber PathAdder(Vector<uint32_t> *path, uint32_t chunkType) 568c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber : mPath(path) { 569c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mPath->push(chunkType); 570c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 571c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 572c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber ~PathAdder() { 573c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mPath->pop(); 574c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 575c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 576c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huberprivate: 577c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber Vector<uint32_t> *mPath; 578c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 579c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber PathAdder(const PathAdder &); 580c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber PathAdder &operator=(const PathAdder &); 581c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber}; 582c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 583c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huberstatic bool underMetaDataPath(const Vector<uint32_t> &path) { 584c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return path.size() >= 5 585c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber && path[0] == FOURCC('m', 'o', 'o', 'v') 586c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber && path[1] == FOURCC('u', 'd', 't', 'a') 587c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber && path[2] == FOURCC('m', 'e', 't', 'a') 588c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber && path[3] == FOURCC('i', 'l', 's', 't'); 589c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber} 590c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 591c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber// Given a time in seconds since Jan 1 1904, produce a human-readable string. 592c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huberstatic void convertTimeToDate(int64_t time_1904, String8 *s) { 593c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber time_t time_1970 = time_1904 - (((66 * 365 + 17) * 24) * 3600); 594c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 595c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber char tmp[32]; 596c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber strftime(tmp, sizeof(tmp), "%Y%m%dT%H%M%S.000Z", gmtime(&time_1970)); 597c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 598c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber s->setTo(tmp); 599c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber} 600c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 601b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dongstatus_t MPEG4Extractor::parseChunk(off64_t *offset, int depth) { 602e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint32_t hdr[2]; 6039a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt(*offset, hdr, 8) < 8) { 604e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 605e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 606e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint64_t chunk_size = ntohl(hdr[0]); 607e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint32_t chunk_type = ntohl(hdr[1]); 608b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t data_offset = *offset + 8; 609e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 610e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (chunk_size == 1) { 6119a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt(*offset + 8, &chunk_size, 8) < 8) { 612e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 613e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 614e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber chunk_size = ntoh64(chunk_size); 615e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset += 8; 616736c22d3e0b96a45e46ce43ac20a48ecbc373db7Andreas Huber 617736c22d3e0b96a45e46ce43ac20a48ecbc373db7Andreas Huber if (chunk_size < 16) { 618736c22d3e0b96a45e46ce43ac20a48ecbc373db7Andreas Huber // The smallest valid chunk is 16 bytes long in this case. 619736c22d3e0b96a45e46ce43ac20a48ecbc373db7Andreas Huber return ERROR_MALFORMED; 620736c22d3e0b96a45e46ce43ac20a48ecbc373db7Andreas Huber } 621736c22d3e0b96a45e46ce43ac20a48ecbc373db7Andreas Huber } else if (chunk_size < 8) { 622736c22d3e0b96a45e46ce43ac20a48ecbc373db7Andreas Huber // The smallest valid chunk is 8 bytes long. 623736c22d3e0b96a45e46ce43ac20a48ecbc373db7Andreas Huber return ERROR_MALFORMED; 624e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 625e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 626e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber char chunk[5]; 627e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber MakeFourCCString(chunk_type, chunk); 628e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 629e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#if 0 630e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber static const char kWhitespace[] = " "; 631e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber const char *indent = &kWhitespace[sizeof(kWhitespace) - 1 - 2 * depth]; 632e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber printf("%sfound chunk '%s' of size %lld\n", indent, chunk, chunk_size); 633e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 634e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber char buffer[256]; 635dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber size_t n = chunk_size; 636dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber if (n > sizeof(buffer)) { 637dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber n = sizeof(buffer); 638dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber } 639dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber if (mDataSource->readAt(*offset, buffer, n) 640dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber < (ssize_t)n) { 641dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber return ERROR_IO; 642e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 643dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber 644dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber hexdump(buffer, n); 645e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber#endif 646e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 647c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber PathAdder autoAdder(&mPath, chunk_type); 648c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 649b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t chunk_data_size = *offset + chunk_size - data_offset; 650e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 651c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (chunk_type != FOURCC('c', 'p', 'r', 't') 652c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber && mPath.size() == 5 && underMetaDataPath(mPath)) { 653b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t stop_offset = *offset + chunk_size; 654c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber *offset = data_offset; 655c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber while (*offset < stop_offset) { 656c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber status_t err = parseChunk(offset, depth + 1); 657c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (err != OK) { 658c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return err; 659c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 660c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 6615ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 6625ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (*offset != stop_offset) { 6635ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 6645ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 665c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 666c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return OK; 667c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 668c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 669e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber switch(chunk_type) { 670e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'o', 'o', 'v'): 671e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('t', 'r', 'a', 'k'): 672e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'd', 'i', 'a'): 673e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'i', 'n', 'f'): 674e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('d', 'i', 'n', 'f'): 675e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 't', 'b', 'l'): 676e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'v', 'e', 'x'): 677e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'o', 'o', 'f'): 678e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('t', 'r', 'a', 'f'): 679e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'f', 'r', 'a'): 680c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC('u', 'd', 't', 'a'): 681c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC('i', 'l', 's', 't'): 682e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 683affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber if (chunk_type == FOURCC('s', 't', 'b', 'l')) { 684affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber LOGV("sampleTable chunk is %d bytes long.", (size_t)chunk_size); 685affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 6866da2ae11b62f155ee83c3e31fdd9cc53b2058586Andreas Huber if (mDataSource->flags() 6876da2ae11b62f155ee83c3e31fdd9cc53b2058586Andreas Huber & (DataSource::kWantsPrefetching 6886da2ae11b62f155ee83c3e31fdd9cc53b2058586Andreas Huber | DataSource::kIsCachingDataSource)) { 689affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber sp<MPEG4DataSource> cachedSource = 690affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber new MPEG4DataSource(mDataSource); 691affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 692affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber if (cachedSource->setCachedRange(*offset, chunk_size) == OK) { 693affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber mDataSource = cachedSource; 694affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber } 695affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber } 696eb9128f9b0ee660504621381fd96f82d5bf8a3fdAndreas Huber 697eb9128f9b0ee660504621381fd96f82d5bf8a3fdAndreas Huber mLastTrack->sampleTable = new SampleTable(mDataSource); 698affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber } 699affa99c52957685f5a5652ab5254b92e729651c7Andreas Huber 7004d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber bool isTrack = false; 7015ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (chunk_type == FOURCC('t', 'r', 'a', 'k')) { 7024d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber isTrack = true; 7034d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber 7045ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber Track *track = new Track; 7055ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber track->next = NULL; 7065ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (mLastTrack) { 7075ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber mLastTrack->next = track; 7085ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } else { 7095ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber mFirstTrack = track; 7105ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 7115ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber mLastTrack = track; 7125ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 7135ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber track->meta = new MetaData; 7145ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber track->includes_expensive_metadata = false; 7154d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber track->skipTrack = false; 7165ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber track->timescale = 0; 7175ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber track->meta->setCString(kKeyMIMEType, "application/octet-stream"); 7185ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 7195ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 720b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t stop_offset = *offset + chunk_size; 721e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset = data_offset; 722e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while (*offset < stop_offset) { 723e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = parseChunk(offset, depth + 1); 724e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 725e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 726e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 727e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 728e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 7295ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (*offset != stop_offset) { 7305ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 7315ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 7325ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 7334d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber if (isTrack) { 7344d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber if (mLastTrack->skipTrack) { 7354d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber Track *cur = mFirstTrack; 7364d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber 7374d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber if (cur == mLastTrack) { 7384d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber delete cur; 7394d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber mFirstTrack = mLastTrack = NULL; 7404d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber } else { 7414d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber while (cur && cur->next != mLastTrack) { 7424d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber cur = cur->next; 7434d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber } 7444d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber cur->next = NULL; 7454d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber delete mLastTrack; 7464d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber mLastTrack = cur; 7474d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber } 7484d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber 7494d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber return OK; 7504d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber } 7514d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber 7525ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber status_t err = verifyTrack(mLastTrack); 7535ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 7545ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (err != OK) { 7555ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return err; 7565ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 7575ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } else if (chunk_type == FOURCC('m', 'o', 'o', 'v')) { 758e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mHaveMetadata = true; 759e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 760d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (!mIsDrm) { 761d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return UNKNOWN_ERROR; // Return a dummy error. 762d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } else { 763d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return OK; 764d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 765e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 766e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 767e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 768e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 769e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('t', 'k', 'h', 'd'): 770e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 771940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber status_t err; 772940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber if ((err = parseTrackHeader(data_offset, chunk_data_size)) != OK) { 773940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber return err; 774e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 775e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 776e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 777e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 778e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 779e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 780e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'd', 'h', 'd'): 781e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 782e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (chunk_data_size < 4) { 783e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_MALFORMED; 784e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 785e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 786e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint8_t version; 7879a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 788e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, &version, sizeof(version)) 789e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber < (ssize_t)sizeof(version)) { 790e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 791e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 792e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 793b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t timescale_offset; 794e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 795e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (version == 1) { 796e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber timescale_offset = data_offset + 4 + 16; 797e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } else if (version == 0) { 798e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber timescale_offset = data_offset + 4 + 8; 799e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } else { 800e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 801e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 802e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 803e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint32_t timescale; 8049a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 805e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber timescale_offset, ×cale, sizeof(timescale)) 806e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber < (ssize_t)sizeof(timescale)) { 807e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 808e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 809e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 810e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->timescale = ntohl(timescale); 811e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 812e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber int64_t duration; 813e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (version == 1) { 8149a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 815e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber timescale_offset + 4, &duration, sizeof(duration)) 816e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber < (ssize_t)sizeof(duration)) { 817e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 818e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 819e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber duration = ntoh64(duration); 820e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } else { 821e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber int32_t duration32; 8229a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 823e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber timescale_offset + 4, &duration32, sizeof(duration32)) 824e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber < (ssize_t)sizeof(duration32)) { 825e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 826e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 827e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber duration = ntohl(duration32); 828e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 829fa8de752507feaca695123911915070c1ce463b2Andreas Huber mLastTrack->meta->setInt64( 830fa8de752507feaca695123911915070c1ce463b2Andreas Huber kKeyDuration, (duration * 1000000) / mLastTrack->timescale); 831e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 832e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 833e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 834e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 835e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 836e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 't', 's', 'd'): 837e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 838e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (chunk_data_size < 8) { 839e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_MALFORMED; 840e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 841e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 842e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint8_t buffer[8]; 843b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong if (chunk_data_size < (off64_t)sizeof(buffer)) { 8445ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 8455ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 8465ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 8479a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 848e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, buffer, 8) < 8) { 849e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 850e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 851e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 852e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (U32_AT(buffer) != 0) { 853e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber // Should be version 0, flags 0. 854e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_MALFORMED; 855e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 856e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 857e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint32_t entry_count = U32_AT(&buffer[4]); 858e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 859e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (entry_count > 1) { 860e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber // For now we only support a single type of media per track. 8614d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber 8624d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber mLastTrack->skipTrack = true; 8634d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber *offset += chunk_size; 8644d60fc5b43b74cdb45e1d1ba55972d48ebed37eeAndreas Huber break; 865e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 866e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 867b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t stop_offset = *offset + chunk_size; 868e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset = data_offset + 8; 869e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber for (uint32_t i = 0; i < entry_count; ++i) { 870e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = parseChunk(offset, depth + 1); 871e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 872e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 873e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 874e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 8755ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 8765ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (*offset != stop_offset) { 8775ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 8785ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 879e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 880e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 881e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 882e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'p', '4', 'a'): 883e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 'a', 'm', 'r'): 8842a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber case FOURCC('s', 'a', 'w', 'b'): 885e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 886e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint8_t buffer[8 + 20]; 887e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (chunk_data_size < (ssize_t)sizeof(buffer)) { 888e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber // Basic AudioSampleEntry size. 889e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_MALFORMED; 890e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 891e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 8929a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 893e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, buffer, sizeof(buffer)) < (ssize_t)sizeof(buffer)) { 894e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 895e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 896e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 897e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint16_t data_ref_index = U16_AT(&buffer[6]); 898e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint16_t num_channels = U16_AT(&buffer[16]); 899e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 900d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber uint16_t sample_size = U16_AT(&buffer[18]); 901d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber uint32_t sample_rate = U32_AT(&buffer[24]) >> 16; 902d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber 903e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, 904d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber FourCC2MIME(chunk_type))) { 905d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber // AMR NB audio is always mono, 8kHz 906d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber num_channels = 1; 907d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber sample_rate = 8000; 908d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber } else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, 909e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber FourCC2MIME(chunk_type))) { 910d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber // AMR WB audio is always mono, 16kHz 911e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber num_channels = 1; 912d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber sample_rate = 16000; 913e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 914e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 915d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber#if 0 916d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber printf("*** coding='%s' %d channels, size %d, rate %d\n", 917d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber chunk, num_channels, sample_size, sample_rate); 918d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber#endif 919e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 920e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type)); 921e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->meta->setInt32(kKeyChannelCount, num_channels); 922e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->meta->setInt32(kKeySampleRate, sample_rate); 923e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 924b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t stop_offset = *offset + chunk_size; 925e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset = data_offset + sizeof(buffer); 926e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while (*offset < stop_offset) { 927e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = parseChunk(offset, depth + 1); 928e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 929e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 930e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 931e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 9325ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 9335ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (*offset != stop_offset) { 9345ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 9355ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 936e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 937e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 938e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 939e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('m', 'p', '4', 'v'): 940e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', '2', '6', '3'): 9410efdc95d59a51a130ce9d2515bcc9e2c01b52f14James Dong case FOURCC('H', '2', '6', '3'): 9420efdc95d59a51a130ce9d2515bcc9e2c01b52f14James Dong case FOURCC('h', '2', '6', '3'): 943e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('a', 'v', 'c', '1'): 944e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 9451cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber mHasVideo = true; 9461cb02bf661807ffc6525dcc13e16d7ce027bef00Andreas Huber 947e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint8_t buffer[78]; 948e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (chunk_data_size < (ssize_t)sizeof(buffer)) { 949e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber // Basic VideoSampleEntry size. 950e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_MALFORMED; 951e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 952e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 9539a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 954e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, buffer, sizeof(buffer)) < (ssize_t)sizeof(buffer)) { 955e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 956e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 957e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 958e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint16_t data_ref_index = U16_AT(&buffer[6]); 959e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint16_t width = U16_AT(&buffer[6 + 18]); 960e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint16_t height = U16_AT(&buffer[6 + 20]); 961e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 962c9e1c80f786667e264748bf2843dabdc2029c006James Dong // The video sample is not stand-compliant if it has invalid dimension. 963c9e1c80f786667e264748bf2843dabdc2029c006James Dong // Use some default width and height value, and 964c9e1c80f786667e264748bf2843dabdc2029c006James Dong // let the decoder figure out the actual width and height (and thus 965c9e1c80f786667e264748bf2843dabdc2029c006James Dong // be prepared for INFO_FOMRAT_CHANGED event). 966c9e1c80f786667e264748bf2843dabdc2029c006James Dong if (width == 0) width = 352; 967c9e1c80f786667e264748bf2843dabdc2029c006James Dong if (height == 0) height = 288; 968c9e1c80f786667e264748bf2843dabdc2029c006James Dong 9692ea14e231945afb6581fa8f54015b33bc74a19e5Andreas Huber // printf("*** coding='%s' width=%d height=%d\n", 9702ea14e231945afb6581fa8f54015b33bc74a19e5Andreas Huber // chunk, width, height); 971e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 972e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type)); 973e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->meta->setInt32(kKeyWidth, width); 974e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->meta->setInt32(kKeyHeight, height); 975e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 976b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t stop_offset = *offset + chunk_size; 977e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset = data_offset + sizeof(buffer); 978e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while (*offset < stop_offset) { 979e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = parseChunk(offset, depth + 1); 980e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 981e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 982e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 983e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 9845ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 9855ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (*offset != stop_offset) { 9865ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 9875ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 988e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 989e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 990e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 991e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 't', 'c', 'o'): 992e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('c', 'o', '6', '4'): 993e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 994e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = 995e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->sampleTable->setChunkOffsetParams( 996e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber chunk_type, data_offset, chunk_data_size); 997e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 998e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 999e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 1000e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1001e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1002e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 1003e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 1004e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1005e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1006e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 't', 's', 'c'): 1007e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 1008e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = 1009e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->sampleTable->setSampleToChunkParams( 1010e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, chunk_data_size); 1011e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1012e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 1013e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 1014e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1015e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1016e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 1017e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 1018e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1019e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1020e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 't', 's', 'z'): 1021e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 't', 'z', '2'): 1022e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 1023e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = 1024e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->sampleTable->setSampleSizeParams( 1025e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber chunk_type, data_offset, chunk_data_size); 1026e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1027e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 1028e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 1029e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1030e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 10311bceff916a72246fa208605d50615823d7f1688bAndreas Huber size_t max_size; 1032d7f2225e7455f5e0da32f409a528ced283631c5dAndreas Huber err = mLastTrack->sampleTable->getMaxSampleSize(&max_size); 1033d7f2225e7455f5e0da32f409a528ced283631c5dAndreas Huber 1034d7f2225e7455f5e0da32f409a528ced283631c5dAndreas Huber if (err != OK) { 1035d7f2225e7455f5e0da32f409a528ced283631c5dAndreas Huber return err; 1036d7f2225e7455f5e0da32f409a528ced283631c5dAndreas Huber } 10371bceff916a72246fa208605d50615823d7f1688bAndreas Huber 10381bceff916a72246fa208605d50615823d7f1688bAndreas Huber // Assume that a given buffer only contains at most 10 fragments, 10391bceff916a72246fa208605d50615823d7f1688bAndreas Huber // each fragment originally prefixed with a 2 byte length will 10401bceff916a72246fa208605d50615823d7f1688bAndreas Huber // have a 4 byte header (0x00 0x00 0x00 0x01) after conversion, 10411bceff916a72246fa208605d50615823d7f1688bAndreas Huber // and thus will grow by 2 bytes per fragment. 10421bceff916a72246fa208605d50615823d7f1688bAndreas Huber mLastTrack->meta->setInt32(kKeyMaxInputSize, max_size + 10 * 2); 1043e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 1044cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong 1045cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong // Calculate average frame rate. 1046cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong const char *mime; 1047cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong CHECK(mLastTrack->meta->findCString(kKeyMIMEType, &mime)); 1048cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong if (!strncasecmp("video/", mime, 6)) { 1049cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong size_t nSamples = mLastTrack->sampleTable->countSamples(); 1050cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong int64_t durationUs; 1051cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong if (mLastTrack->meta->findInt64(kKeyDuration, &durationUs)) { 1052cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong if (durationUs > 0) { 1053cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong int32_t frameRate = (nSamples * 1000000LL + 1054cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong (durationUs >> 1)) / durationUs; 1055cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong mLastTrack->meta->setInt32(kKeyFrameRate, frameRate); 1056cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong } 1057cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong } 1058cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong } 1059cbb488d67826dd38f665bc8626b55dfe2f0e135fJames Dong 1060e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 1061e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1062e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1063e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 't', 't', 's'): 1064e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 1065e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = 1066e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->sampleTable->setTimeToSampleParams( 1067e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, chunk_data_size); 1068e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1069e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 1070e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 1071e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1072e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1073e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 1074e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 1075e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1076e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1077e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('s', 't', 's', 's'): 1078e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 1079e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err = 1080e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->sampleTable->setSyncSampleParams( 1081e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, chunk_data_size); 1082e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1083e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 1084e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 1085e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1086e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1087e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 1088e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 1089e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1090e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1091e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('e', 's', 'd', 's'): 1092e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 1093e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (chunk_data_size < 4) { 1094e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_MALFORMED; 1095e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1096e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1097e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint8_t buffer[256]; 1098b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong if (chunk_data_size > (off64_t)sizeof(buffer)) { 1099e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_BUFFER_TOO_SMALL; 1100e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1101e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 11029a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 1103e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, buffer, chunk_data_size) < chunk_data_size) { 1104e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 1105e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1106e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1107e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (U32_AT(buffer) != 0) { 1108e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber // Should be version 0, flags 0. 1109e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_MALFORMED; 1110e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1111e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1112e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->meta->setData( 1113e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber kKeyESDS, kTypeESDS, &buffer[4], chunk_data_size - 4); 1114e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1115d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (mPath.size() >= 2 1116d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber && mPath[mPath.size() - 2] == FOURCC('m', 'p', '4', 'a')) { 1117d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber // Information from the ESDS must be relied on for proper 1118d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber // setup of sample rate and channel count for MPEG4 Audio. 1119d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber // The generic header appears to only contain generic 1120d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber // information... 1121d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1122d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber status_t err = updateAudioTrackInfoFromESDS_MPEG4Audio( 1123d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber &buffer[4], chunk_data_size - 4); 1124d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1125d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (err != OK) { 1126d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber return err; 1127d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1128d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1129d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1130e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 1131e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 1132e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1133e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1134e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber case FOURCC('a', 'v', 'c', 'C'): 1135e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 1136e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber char buffer[256]; 1137b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong if (chunk_data_size > (off64_t)sizeof(buffer)) { 1138e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_BUFFER_TOO_SMALL; 1139e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1140e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 11419a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber if (mDataSource->readAt( 1142e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber data_offset, buffer, chunk_data_size) < chunk_data_size) { 1143e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return ERROR_IO; 1144e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1145e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1146e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mLastTrack->meta->setData( 1147e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber kKeyAVCC, kTypeAVCC, buffer, chunk_data_size); 1148e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1149e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 1150e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 1151e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1152e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1153c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC('m', 'e', 't', 'a'): 1154c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1155c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber uint8_t buffer[4]; 1156b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong if (chunk_data_size < (off64_t)sizeof(buffer)) { 11575ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 11585ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 11595ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 1160c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (mDataSource->readAt( 1161c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber data_offset, buffer, 4) < 4) { 1162c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return ERROR_IO; 1163c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1164c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1165c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (U32_AT(buffer) != 0) { 1166c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber // Should be version 0, flags 0. 1167dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber 1168dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber // If it's not, let's assume this is one of those 1169dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber // apparently malformed chunks that don't have flags 1170dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber // and completely different semantics than what's 1171dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber // in the MPEG4 specs and skip it. 1172dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber *offset += chunk_size; 1173dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber return OK; 1174c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1175c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1176b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t stop_offset = *offset + chunk_size; 1177c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber *offset = data_offset + sizeof(buffer); 1178c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber while (*offset < stop_offset) { 1179c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber status_t err = parseChunk(offset, depth + 1); 1180c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (err != OK) { 1181c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return err; 1182c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1183c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 11845ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 11855ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (*offset != stop_offset) { 11865ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 11875ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 1188c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1189c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1190c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1191c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC('d', 'a', 't', 'a'): 1192c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1193c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (mPath.size() == 6 && underMetaDataPath(mPath)) { 1194c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber status_t err = parseMetaData(data_offset, chunk_data_size); 1195c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1196c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (err != OK) { 1197c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return err; 1198c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1199c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1200c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1201c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber *offset += chunk_size; 1202c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1203c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1204c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1205c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC('m', 'v', 'h', 'd'): 1206c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1207c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (chunk_data_size < 12) { 1208c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return ERROR_MALFORMED; 1209c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1210c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1211c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber uint8_t header[12]; 1212c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (mDataSource->readAt( 1213c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber data_offset, header, sizeof(header)) 1214c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber < (ssize_t)sizeof(header)) { 1215c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return ERROR_IO; 1216c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1217c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1218c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber int64_t creationTime; 1219c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (header[0] == 1) { 1220c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber creationTime = U64_AT(&header[4]); 12215ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } else if (header[0] != 0) { 12225ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 1223c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } else { 1224c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber creationTime = U32_AT(&header[4]); 1225c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1226c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1227c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber String8 s; 1228c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber convertTimeToDate(creationTime, &s); 1229c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1230c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mFileMetaData->setCString(kKeyDate, s.string()); 1231c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1232c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber *offset += chunk_size; 1233c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1234c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1235c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1236d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang case FOURCC('m', 'd', 'a', 't'): 1237d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang { 1238d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (!mIsDrm) { 1239d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang *offset += chunk_size; 1240d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang break; 1241d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 1242d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 1243d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (chunk_size < 8) { 1244d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 1245d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 1246d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 1247d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return parseDrmSINF(offset, data_offset); 1248d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 1249d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 1250e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber default: 1251e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber { 1252e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *offset += chunk_size; 1253e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber break; 1254e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1255e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1256e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1257e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return OK; 1258e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 1259e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1260940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huberstatus_t MPEG4Extractor::parseTrackHeader( 1261b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t data_offset, off64_t data_size) { 1262940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber if (data_size < 4) { 1263940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber return ERROR_MALFORMED; 1264940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } 1265940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1266940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber uint8_t version; 1267940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber if (mDataSource->readAt(data_offset, &version, 1) < 1) { 1268940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber return ERROR_IO; 1269940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } 1270940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1271940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber size_t dynSize = (version == 1) ? 36 : 24; 1272940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1273940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber uint8_t buffer[36 + 60]; 1274940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1275b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong if (data_size != (off64_t)dynSize + 60) { 1276940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber return ERROR_MALFORMED; 1277940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } 1278940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1279940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber if (mDataSource->readAt( 1280940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber data_offset, buffer, data_size) < (ssize_t)data_size) { 1281940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber return ERROR_IO; 1282940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } 1283940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1284940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber uint64_t ctime, mtime, duration; 1285940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber int32_t id; 1286940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1287940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber if (version == 1) { 1288940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber ctime = U64_AT(&buffer[4]); 1289940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber mtime = U64_AT(&buffer[12]); 1290940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber id = U32_AT(&buffer[20]); 1291940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber duration = U64_AT(&buffer[28]); 1292940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } else { 1293940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber CHECK_EQ((unsigned)version, 0u); 1294940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1295940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber ctime = U32_AT(&buffer[4]); 1296940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber mtime = U32_AT(&buffer[8]); 1297940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber id = U32_AT(&buffer[12]); 1298940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber duration = U32_AT(&buffer[20]); 1299940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } 1300940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1301940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber mLastTrack->meta->setInt32(kKeyTrackID, id); 1302940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1303940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber size_t matrixOffset = dynSize + 16; 1304940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber int32_t a00 = U32_AT(&buffer[matrixOffset]); 1305940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber int32_t a01 = U32_AT(&buffer[matrixOffset + 4]); 1306940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber int32_t dx = U32_AT(&buffer[matrixOffset + 8]); 1307940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber int32_t a10 = U32_AT(&buffer[matrixOffset + 12]); 1308940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber int32_t a11 = U32_AT(&buffer[matrixOffset + 16]); 1309940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber int32_t dy = U32_AT(&buffer[matrixOffset + 20]); 1310940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1311940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber#if 0 1312940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber LOGI("x' = %.2f * x + %.2f * y + %.2f", 1313940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber a00 / 65536.0f, a01 / 65536.0f, dx / 65536.0f); 1314940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber LOGI("y' = %.2f * x + %.2f * y + %.2f", 1315940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber a10 / 65536.0f, a11 / 65536.0f, dy / 65536.0f); 1316940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber#endif 1317940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1318940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber uint32_t rotationDegrees; 1319940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1320940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber static const int32_t kFixedOne = 0x10000; 1321940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber if (a00 == kFixedOne && a01 == 0 && a10 == 0 && a11 == kFixedOne) { 1322940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber // Identity, no rotation 1323940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber rotationDegrees = 0; 1324940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } else if (a00 == 0 && a01 == kFixedOne && a10 == -kFixedOne && a11 == 0) { 1325940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber rotationDegrees = 90; 1326940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } else if (a00 == 0 && a01 == -kFixedOne && a10 == kFixedOne && a11 == 0) { 1327940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber rotationDegrees = 270; 1328940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } else if (a00 == -kFixedOne && a01 == 0 && a10 == 0 && a11 == -kFixedOne) { 1329940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber rotationDegrees = 180; 1330940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } else { 1331940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber LOGW("We only support 0,90,180,270 degree rotation matrices"); 1332940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber rotationDegrees = 0; 1333940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } 1334940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1335940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber if (rotationDegrees != 0) { 1336940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber mLastTrack->meta->setInt32(kKeyRotation, rotationDegrees); 1337940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber } 1338940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 133908adfd29ae3634b554cfe184ab82f112ef934d7bJames Dong // Handle presentation display size, which could be different 134008adfd29ae3634b554cfe184ab82f112ef934d7bJames Dong // from the image size indicated by kKeyWidth and kKeyHeight. 1341940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber uint32_t width = U32_AT(&buffer[dynSize + 52]); 1342940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber uint32_t height = U32_AT(&buffer[dynSize + 56]); 134308adfd29ae3634b554cfe184ab82f112ef934d7bJames Dong mLastTrack->meta->setInt32(kKeyDisplayWidth, width >> 16); 134408adfd29ae3634b554cfe184ab82f112ef934d7bJames Dong mLastTrack->meta->setInt32(kKeyDisplayHeight, height >> 16); 1345940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1346940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber return OK; 1347940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber} 1348940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber 1349b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dongstatus_t MPEG4Extractor::parseMetaData(off64_t offset, size_t size) { 1350c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (size < 4) { 1351c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return ERROR_MALFORMED; 1352c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1353c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1354c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber uint8_t *buffer = new uint8_t[size + 1]; 1355c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (mDataSource->readAt( 1356c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber offset, buffer, size) != (ssize_t)size) { 1357c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber delete[] buffer; 1358c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber buffer = NULL; 1359c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1360c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return ERROR_IO; 1361c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1362c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1363c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber uint32_t flags = U32_AT(buffer); 1364c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1365c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber uint32_t metadataKey = 0; 1366c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber switch (mPath[4]) { 1367c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC(0xa9, 'a', 'l', 'b'): 1368c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1369c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber metadataKey = kKeyAlbum; 1370c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1371c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1372c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC(0xa9, 'A', 'R', 'T'): 1373c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1374c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber metadataKey = kKeyArtist; 1375c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1376c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1377c5d5ee34d7c1026ca8d5cd8b186e5a73c5230247Marco Nelissen case FOURCC('a', 'A', 'R', 'T'): 1378c5d5ee34d7c1026ca8d5cd8b186e5a73c5230247Marco Nelissen { 1379c5d5ee34d7c1026ca8d5cd8b186e5a73c5230247Marco Nelissen metadataKey = kKeyAlbumArtist; 1380c5d5ee34d7c1026ca8d5cd8b186e5a73c5230247Marco Nelissen break; 1381c5d5ee34d7c1026ca8d5cd8b186e5a73c5230247Marco Nelissen } 1382c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC(0xa9, 'd', 'a', 'y'): 1383c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1384c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber metadataKey = kKeyYear; 1385c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1386c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1387c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC(0xa9, 'n', 'a', 'm'): 1388c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1389c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber metadataKey = kKeyTitle; 1390c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1391c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1392c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC(0xa9, 'w', 'r', 't'): 1393c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1394c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber metadataKey = kKeyWriter; 1395c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1396c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1397c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC('c', 'o', 'v', 'r'): 1398c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1399c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber metadataKey = kKeyAlbumArt; 1400c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1401c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1402c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC('g', 'n', 'r', 'e'): 1403c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1404c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber metadataKey = kKeyGenre; 1405c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1406c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1407fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen case FOURCC(0xa9, 'g', 'e', 'n'): 1408fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen { 1409fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen metadataKey = kKeyGenre; 1410fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen break; 1411fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen } 1412ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen case FOURCC('c', 'p', 'i', 'l'): 1413ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen { 1414ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen if (size == 9 && flags == 21) { 1415ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen char tmp[16]; 1416ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen sprintf(tmp, "%d", 1417ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen (int)buffer[size - 1]); 1418ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen 1419ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen mFileMetaData->setCString(kKeyCompilation, tmp); 1420ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen } 1421ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen break; 1422ee35aff74494e6c0b718e219427af6a6c573b928Marco Nelissen } 1423c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber case FOURCC('t', 'r', 'k', 'n'): 1424c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber { 1425c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (size == 16 && flags == 0) { 1426c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber char tmp[16]; 1427c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber sprintf(tmp, "%d/%d", 1428c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber (int)buffer[size - 5], (int)buffer[size - 3]); 1429c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1430c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mFileMetaData->setCString(kKeyCDTrackNumber, tmp); 1431c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1432c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1433c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1434fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen case FOURCC('d', 'i', 's', 'k'): 1435fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen { 1436fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen if (size == 14 && flags == 0) { 1437fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen char tmp[16]; 1438fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen sprintf(tmp, "%d/%d", 1439fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen (int)buffer[size - 3], (int)buffer[size - 1]); 1440fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen 1441fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen mFileMetaData->setCString(kKeyDiscNumber, tmp); 1442fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen } 1443fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen break; 1444fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen } 1445fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen 1446c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber default: 1447c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber break; 1448c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1449c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1450c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (size >= 8 && metadataKey) { 1451c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (metadataKey == kKeyAlbumArt) { 1452c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mFileMetaData->setData( 1453c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber kKeyAlbumArt, MetaData::TYPE_NONE, 1454c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber buffer + 8, size - 8); 1455c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } else if (metadataKey == kKeyGenre) { 1456c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber if (flags == 0) { 1457fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen // uint8_t genre code, iTunes genre codes are 1458fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen // the standard id3 codes, except they start 1459fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen // at 1 instead of 0 (e.g. Pop is 14, not 13) 1460fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen // We use standard id3 numbering, so subtract 1. 1461fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen int genrecode = (int)buffer[size - 1]; 1462fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen genrecode--; 1463fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen if (genrecode < 0) { 1464fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen genrecode = 255; // reserved for 'unknown genre' 1465fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen } 1466c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber char genre[10]; 1467fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen sprintf(genre, "%d", genrecode); 1468c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1469c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mFileMetaData->setCString(metadataKey, genre); 1470fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen } else if (flags == 1) { 1471fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen // custom genre string 1472fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen buffer[size] = '\0'; 1473fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen 1474fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen mFileMetaData->setCString( 1475fe3b8e9fe5e68ef307fdac3ad94b15215038dbc3Marco Nelissen metadataKey, (const char *)buffer + 8); 1476c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1477c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } else { 1478c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber buffer[size] = '\0'; 1479c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1480c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber mFileMetaData->setCString( 1481c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber metadataKey, (const char *)buffer + 8); 1482c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1483c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber } 1484c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1485c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber delete[] buffer; 1486c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber buffer = NULL; 1487c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1488c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber return OK; 1489c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber} 1490c2c9dd32511b555c637b8cadb8091eaa6088f92bAndreas Huber 1491be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Hubersp<MediaSource> MPEG4Extractor::getTrack(size_t index) { 1492e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber status_t err; 1493e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if ((err = readMetaData()) != OK) { 1494be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber return NULL; 1495e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1496e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1497e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber Track *track = mFirstTrack; 1498e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber while (index > 0) { 1499e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (track == NULL) { 1500be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber return NULL; 1501e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1502e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1503e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber track = track->next; 1504e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber --index; 1505e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1506e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 15072a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber if (track == NULL) { 15082a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber return NULL; 15092a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber } 15102a651177be1d29e8b4bdc84c84060514b15350f0Andreas Huber 1511be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber return new MPEG4Source( 1512fa8de752507feaca695123911915070c1ce463b2Andreas Huber track->meta, mDataSource, track->timescale, track->sampleTable); 1513e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 1514e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 15155ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber// static 15165ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huberstatus_t MPEG4Extractor::verifyTrack(Track *track) { 15175ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber const char *mime; 15185ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber CHECK(track->meta->findCString(kKeyMIMEType, &mime)); 15195ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 15205ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber uint32_t type; 15215ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber const void *data; 15225ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber size_t size; 15235ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) { 15245ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (!track->meta->findData(kKeyAVCC, &type, &data, &size) 15255ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber || type != kTypeAVCC) { 15265ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 15275ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 15285ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) 15295ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber || !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) { 15305ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber if (!track->meta->findData(kKeyESDS, &type, &data, &size) 15315ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber || type != kTypeESDS) { 15325ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return ERROR_MALFORMED; 15335ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 15345ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber } 15355ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 15365ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber return OK; 15375ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber} 15385ee0bce5e006610a06d6d8f3572098b1ccaded6dAndreas Huber 1539d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huberstatus_t MPEG4Extractor::updateAudioTrackInfoFromESDS_MPEG4Audio( 1540d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber const void *esds_data, size_t esds_size) { 1541d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber ESDS esds(esds_data, esds_size); 1542d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber 1543d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber uint8_t objectTypeIndication; 1544d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber if (esds.getObjectTypeIndication(&objectTypeIndication) != OK) { 1545d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber return ERROR_MALFORMED; 1546d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber } 1547d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber 1548d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber if (objectTypeIndication == 0xe1) { 1549d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber // This isn't MPEG4 audio at all, it's QCELP 14k... 1550d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_QCELP); 1551d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber return OK; 1552d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber } 1553d0332ad8d212d87fbf909fc780e6378b4d2c20c1Andreas Huber 1554d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber const uint8_t *csd; 1555d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber size_t csd_size; 1556d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (esds.getCodecSpecificInfo( 1557d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber (const void **)&csd, &csd_size) != OK) { 1558d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber return ERROR_MALFORMED; 1559d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1560d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1561d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber#if 0 1562d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber printf("ESD of size %d\n", csd_size); 1563d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber hexdump(csd, csd_size); 1564d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber#endif 1565d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 156608c94b265c4bf7105b593afb119053a2e16865e9Andreas Huber if (csd_size == 0) { 156708c94b265c4bf7105b593afb119053a2e16865e9Andreas Huber // There's no further information, i.e. no codec specific data 156808c94b265c4bf7105b593afb119053a2e16865e9Andreas Huber // Let's assume that the information provided in the mpeg4 headers 156908c94b265c4bf7105b593afb119053a2e16865e9Andreas Huber // is accurate and hope for the best. 157008c94b265c4bf7105b593afb119053a2e16865e9Andreas Huber 157108c94b265c4bf7105b593afb119053a2e16865e9Andreas Huber return OK; 157208c94b265c4bf7105b593afb119053a2e16865e9Andreas Huber } 157308c94b265c4bf7105b593afb119053a2e16865e9Andreas Huber 1574d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (csd_size < 2) { 1575d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber return ERROR_MALFORMED; 1576d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1577d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1578d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber uint32_t objectType = csd[0] >> 3; 1579d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1580d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (objectType == 31) { 1581d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber return ERROR_UNSUPPORTED; 1582d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1583d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1584d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber uint32_t freqIndex = (csd[0] & 7) << 1 | (csd[1] >> 7); 1585d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber int32_t sampleRate = 0; 1586d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber int32_t numChannels = 0; 1587d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (freqIndex == 15) { 1588d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (csd_size < 5) { 1589d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber return ERROR_MALFORMED; 1590d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1591d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1592d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber sampleRate = (csd[1] & 0x7f) << 17 1593d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber | csd[2] << 9 1594d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber | csd[3] << 1 1595d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber | (csd[4] >> 7); 1596d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1597d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber numChannels = (csd[4] >> 3) & 15; 1598d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } else { 1599cc14a8393b92cd1ed6cba74829396045605ab211Andreas Huber static uint32_t kSamplingRate[] = { 1600cc14a8393b92cd1ed6cba74829396045605ab211Andreas Huber 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 1601cc14a8393b92cd1ed6cba74829396045605ab211Andreas Huber 16000, 12000, 11025, 8000, 7350 1602cc14a8393b92cd1ed6cba74829396045605ab211Andreas Huber }; 1603d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1604d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (freqIndex == 13 || freqIndex == 14) { 1605d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber return ERROR_MALFORMED; 1606d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1607d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1608d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber sampleRate = kSamplingRate[freqIndex]; 1609d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber numChannels = (csd[1] >> 3) & 15; 1610d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1611d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1612d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (numChannels == 0) { 1613d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber return ERROR_UNSUPPORTED; 1614d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1615d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1616d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber int32_t prevSampleRate; 1617d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber CHECK(mLastTrack->meta->findInt32(kKeySampleRate, &prevSampleRate)); 1618d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1619d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (prevSampleRate != sampleRate) { 16204a9375ef2a06fc36ec308835ef9e7e4eea2ba69fAndreas Huber LOGV("mpeg4 audio sample rate different from previous setting. " 1621d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber "was: %d, now: %d", prevSampleRate, sampleRate); 1622d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1623d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1624d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber mLastTrack->meta->setInt32(kKeySampleRate, sampleRate); 1625d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1626d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber int32_t prevChannelCount; 1627d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber CHECK(mLastTrack->meta->findInt32(kKeyChannelCount, &prevChannelCount)); 1628d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1629d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber if (prevChannelCount != numChannels) { 16304a9375ef2a06fc36ec308835ef9e7e4eea2ba69fAndreas Huber LOGV("mpeg4 audio channel count different from previous setting. " 1631d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber "was: %d, now: %d", prevChannelCount, numChannels); 1632d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber } 1633d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1634d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber mLastTrack->meta->setInt32(kKeyChannelCount, numChannels); 1635d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1636d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber return OK; 1637d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber} 1638d2315967b4075875cd6681327ae3043fa2adfbcfAndreas Huber 1639e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber//////////////////////////////////////////////////////////////////////////////// 1640e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1641e46b7be812d68e49710b34048662cbf18e2a6550Andreas HuberMPEG4Source::MPEG4Source( 1642e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber const sp<MetaData> &format, 1643be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber const sp<DataSource> &dataSource, 1644fa8de752507feaca695123911915070c1ce463b2Andreas Huber int32_t timeScale, 1645be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber const sp<SampleTable> &sampleTable) 1646e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber : mFormat(format), 1647e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mDataSource(dataSource), 1648fa8de752507feaca695123911915070c1ce463b2Andreas Huber mTimescale(timeScale), 1649e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mSampleTable(sampleTable), 1650e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mCurrentSampleIndex(0), 1651e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mIsAVC(false), 1652db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber mNALLengthSize(0), 1653e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mStarted(false), 1654e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mGroup(NULL), 1655e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer(NULL), 16564f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mWantsNALFragments(false), 16578a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber mSrcBuffer(NULL) { 1658e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber const char *mime; 1659e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber bool success = mFormat->findCString(kKeyMIMEType, &mime); 16604f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber CHECK(success); 1661e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1662e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber mIsAVC = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC); 1663db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 1664db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber if (mIsAVC) { 1665db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber uint32_t type; 1666db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber const void *data; 1667db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber size_t size; 1668db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber CHECK(format->findData(kKeyAVCC, &type, &data, &size)); 1669db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 1670db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber const uint8_t *ptr = (const uint8_t *)data; 1671db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 1672db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber CHECK(size >= 7); 1673940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1 1674db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 1675db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber // The number of bytes used to encode the length of a NAL unit. 1676db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber mNALLengthSize = 1 + (ptr[4] & 3); 1677db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber } 1678e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 1679e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1680e46b7be812d68e49710b34048662cbf18e2a6550Andreas HuberMPEG4Source::~MPEG4Source() { 1681e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (mStarted) { 1682e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber stop(); 1683e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1684e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 1685e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1686e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberstatus_t MPEG4Source::start(MetaData *params) { 1687ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber Mutex::Autolock autoLock(mLock); 1688ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber 16894f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber CHECK(!mStarted); 1690e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1691e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber int32_t val; 16924f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (params && params->findInt32(kKeyWantsNALFragments, &val) 1693e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber && val != 0) { 16944f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mWantsNALFragments = true; 1695e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } else { 16964f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mWantsNALFragments = false; 1697e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1698e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1699e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mGroup = new MediaBufferGroup; 1700e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 17011bceff916a72246fa208605d50615823d7f1688bAndreas Huber int32_t max_size; 17021bceff916a72246fa208605d50615823d7f1688bAndreas Huber CHECK(mFormat->findInt32(kKeyMaxInputSize, &max_size)); 1703e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 17041bceff916a72246fa208605d50615823d7f1688bAndreas Huber mGroup->add_buffer(new MediaBuffer(max_size)); 17058a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber 17068a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber mSrcBuffer = new uint8_t[max_size]; 1707e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1708e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mStarted = true; 1709e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1710e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return OK; 1711e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 1712e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1713e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberstatus_t MPEG4Source::stop() { 1714ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber Mutex::Autolock autoLock(mLock); 1715ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber 17164f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber CHECK(mStarted); 1717e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1718e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (mBuffer != NULL) { 1719e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer->release(); 1720e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer = NULL; 1721e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1722e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 17238a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber delete[] mSrcBuffer; 17248a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber mSrcBuffer = NULL; 17258a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber 1726e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber delete mGroup; 1727e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mGroup = NULL; 1728e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1729e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mStarted = false; 1730e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mCurrentSampleIndex = 0; 1731e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1732e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return OK; 1733e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 1734e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1735e46b7be812d68e49710b34048662cbf18e2a6550Andreas Hubersp<MetaData> MPEG4Source::getFormat() { 1736ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber Mutex::Autolock autoLock(mLock); 1737ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber 1738e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return mFormat; 1739e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 1740e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1741db5d662254f2ed788d32e2466739adc8d655c732Andreas Hubersize_t MPEG4Source::parseNALSize(const uint8_t *data) const { 1742db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber switch (mNALLengthSize) { 1743db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber case 1: 1744db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber return *data; 1745db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber case 2: 1746db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber return U16_AT(data); 1747db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber case 3: 1748db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber return ((size_t)data[0] << 16) | U16_AT(&data[1]); 1749db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber case 4: 1750db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber return U32_AT(data); 1751db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber } 1752db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 1753db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber // This cannot happen, mNALLengthSize springs to life by adding 1 to 1754db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber // a 2-bit integer. 1755db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber CHECK(!"Should not be here."); 1756db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 1757db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber return 0; 1758db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber} 1759db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 1760e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huberstatus_t MPEG4Source::read( 1761e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber MediaBuffer **out, const ReadOptions *options) { 1762ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber Mutex::Autolock autoLock(mLock); 1763ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber 17644f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber CHECK(mStarted); 1765e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1766e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *out = NULL; 1767e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 17686624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber int64_t targetSampleTimeUs = -1; 17696624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 1770e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber int64_t seekTimeUs; 17716624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber ReadOptions::SeekMode mode; 17726624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber if (options && options->getSeekTo(&seekTimeUs, &mode)) { 17736624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber uint32_t findFlags = 0; 17746624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber switch (mode) { 17756624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber case ReadOptions::SEEK_PREVIOUS_SYNC: 17766624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber findFlags = SampleTable::kFlagBefore; 17776624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber break; 17786624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber case ReadOptions::SEEK_NEXT_SYNC: 17796624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber findFlags = SampleTable::kFlagAfter; 17806624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber break; 17816624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber case ReadOptions::SEEK_CLOSEST_SYNC: 17826624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber case ReadOptions::SEEK_CLOSEST: 17836624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber findFlags = SampleTable::kFlagClosest; 17846624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber break; 17856624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber default: 17866624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber CHECK(!"Should not be here."); 17876624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber break; 17886624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber } 17896624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 1790e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint32_t sampleIndex; 17916624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber status_t err = mSampleTable->findSampleAtTime( 1792e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber seekTimeUs * mTimescale / 1000000, 17936624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber &sampleIndex, findFlags); 17946624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 17956624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber if (mode == ReadOptions::SEEK_CLOSEST) { 17966624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber // We found the closest sample already, now we want the sync 17976624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber // sample preceding it (or the sample itself of course), even 17986624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber // if the subsequent sync sample is closer. 17996624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber findFlags = SampleTable::kFlagBefore; 18006624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber } 18016624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 18026624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber uint32_t syncSampleIndex; 18036624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber if (err == OK) { 18046624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber err = mSampleTable->findSyncSampleNear( 18056624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber sampleIndex, &syncSampleIndex, findFlags); 18066624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber } 1807e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1808e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (err != OK) { 1809d7d22eba3c1bb7212ccc566fedb16dbee44f51a2Andreas Huber if (err == ERROR_OUT_OF_RANGE) { 1810d7d22eba3c1bb7212ccc566fedb16dbee44f51a2Andreas Huber // An attempt to seek past the end of the stream would 1811d7d22eba3c1bb7212ccc566fedb16dbee44f51a2Andreas Huber // normally cause this ERROR_OUT_OF_RANGE error. Propagating 1812d7d22eba3c1bb7212ccc566fedb16dbee44f51a2Andreas Huber // this all the way to the MediaPlayer would cause abnormal 1813d7d22eba3c1bb7212ccc566fedb16dbee44f51a2Andreas Huber // termination. Legacy behaviour appears to be to behave as if 1814d7d22eba3c1bb7212ccc566fedb16dbee44f51a2Andreas Huber // we had seeked to the end of stream, ending normally. 1815d7d22eba3c1bb7212ccc566fedb16dbee44f51a2Andreas Huber err = ERROR_END_OF_STREAM; 1816d7d22eba3c1bb7212ccc566fedb16dbee44f51a2Andreas Huber } 1817e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return err; 1818e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1819e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 18206624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber uint32_t sampleTime; 1821940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber CHECK_EQ((status_t)OK, mSampleTable->getMetaDataForSample( 18226624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber sampleIndex, NULL, NULL, &sampleTime)); 18236624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 18246624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber if (mode == ReadOptions::SEEK_CLOSEST) { 18256624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber targetSampleTimeUs = (sampleTime * 1000000ll) / mTimescale; 18266624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber } 18276624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 18286624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber#if 0 18296624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber uint32_t syncSampleTime; 18306624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber CHECK_EQ(OK, mSampleTable->getMetaDataForSample( 18316624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber syncSampleIndex, NULL, NULL, &syncSampleTime)); 18326624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 18336624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber LOGI("seek to time %lld us => sample at time %lld us, " 18346624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber "sync sample at time %lld us", 18356624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber seekTimeUs, 18366624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber sampleTime * 1000000ll / mTimescale, 18376624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber syncSampleTime * 1000000ll / mTimescale); 18386624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber#endif 18396624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 18406624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber mCurrentSampleIndex = syncSampleIndex; 1841e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (mBuffer != NULL) { 1842e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer->release(); 1843e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer = NULL; 1844e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1845e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1846e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber // fall through 1847e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1848e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1849b1262a8b1dd23abad64465f9ffd25c44facdf4d2James Dong off64_t offset; 18508a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber size_t size; 18514f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber uint32_t dts; 1852ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber bool isSyncSample; 18534f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber bool newBuffer = false; 18544f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (mBuffer == NULL) { 18554f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber newBuffer = true; 1856e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 18571faa92a1e93f311e86dca483ed7702091137de66Andreas Huber status_t err = 18581faa92a1e93f311e86dca483ed7702091137de66Andreas Huber mSampleTable->getMetaDataForSample( 1859ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber mCurrentSampleIndex, &offset, &size, &dts, &isSyncSample); 1860e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 18614f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (err != OK) { 18624f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber return err; 18634f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber } 18644f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 18654f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber err = mGroup->acquire_buffer(&mBuffer); 18661faa92a1e93f311e86dca483ed7702091137de66Andreas Huber 18674f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (err != OK) { 1868940c866c992f122be7aeb92a1b314d7df437d4e2Andreas Huber CHECK(mBuffer == NULL); 18694f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber return err; 18704f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber } 18718a432776d003247c12222d8dd6a30ea4621aa2d0Andreas Huber } 1872e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 18734f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (!mIsAVC || mWantsNALFragments) { 18744f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (newBuffer) { 18754f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber ssize_t num_bytes_read = 18769a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber mDataSource->readAt(offset, (uint8_t *)mBuffer->data(), size); 18774f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 18784f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (num_bytes_read < (ssize_t)size) { 18794f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mBuffer->release(); 18804f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mBuffer = NULL; 18814f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 18824f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber return ERROR_IO; 18834f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber } 18844f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 1885ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber CHECK(mBuffer != NULL); 18864f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mBuffer->set_range(0, size); 18874f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mBuffer->meta_data()->clear(); 1888fa8de752507feaca695123911915070c1ce463b2Andreas Huber mBuffer->meta_data()->setInt64( 1889fa8de752507feaca695123911915070c1ce463b2Andreas Huber kKeyTime, ((int64_t)dts * 1000000) / mTimescale); 18906624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 18916624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber if (targetSampleTimeUs >= 0) { 18926624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber mBuffer->meta_data()->setInt64( 18936624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber kKeyTargetTime, targetSampleTimeUs); 18946624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber } 18956624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 1896ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber if (isSyncSample) { 1897ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1); 1898ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber } 1899ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber 19004f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber ++mCurrentSampleIndex; 19014f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber } 19024f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 19034f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (!mIsAVC) { 19044f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber *out = mBuffer; 19054f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mBuffer = NULL; 19064f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 19074f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber return OK; 19084f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber } 19094f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 19104f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber // Each NAL unit is split up into its constituent fragments and 19114f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber // each one of them returned in its own buffer. 19124f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 1913db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber CHECK(mBuffer->range_length() >= mNALLengthSize); 19144f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 19154f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber const uint8_t *src = 19164f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber (const uint8_t *)mBuffer->data() + mBuffer->range_offset(); 19174f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 1918db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber size_t nal_size = parseNALSize(src); 1919909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber if (mBuffer->range_length() < mNALLengthSize + nal_size) { 1920909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber LOGE("incomplete NAL unit."); 1921909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber 1922909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber mBuffer->release(); 1923909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber mBuffer = NULL; 1924909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber 1925909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber return ERROR_MALFORMED; 1926909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber } 19274f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 19284f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber MediaBuffer *clone = mBuffer->clone(); 1929ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber CHECK(clone != NULL); 1930db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber clone->set_range(mBuffer->range_offset() + mNALLengthSize, nal_size); 19314f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 1932ba7ec917ea91364598de1ba7a29910cec08fd5deAndreas Huber CHECK(mBuffer != NULL); 19334f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mBuffer->set_range( 1934db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber mBuffer->range_offset() + mNALLengthSize + nal_size, 1935db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber mBuffer->range_length() - mNALLengthSize - nal_size); 19364f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 19374f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber if (mBuffer->range_length() == 0) { 19384f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mBuffer->release(); 19394f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber mBuffer = NULL; 19404f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber } 19414f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 19424f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber *out = clone; 19434f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 19444f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber return OK; 19454f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber } else { 19464f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber // Whole NAL units are returned but each fragment is prefixed by 19474f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber // the start code (0x00 00 00 01). 1948d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang ssize_t num_bytes_read = 0; 1949d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang int32_t drm = 0; 1950d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang bool usesDRM = (mFormat->findInt32(kKeyIsDRM, &drm) && drm != 0); 1951d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (usesDRM) { 1952d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang num_bytes_read = 1953d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mDataSource->readAt(offset, (uint8_t*)mBuffer->data(), size); 1954d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } else { 1955d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang num_bytes_read = mDataSource->readAt(offset, mSrcBuffer, size); 1956d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 1957e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1958e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (num_bytes_read < (ssize_t)size) { 1959e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer->release(); 1960e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer = NULL; 1961e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 19624f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber return ERROR_IO; 1963e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 1964e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 1965d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (usesDRM) { 1966d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang CHECK(mBuffer != NULL); 1967d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mBuffer->set_range(0, size); 1968db5d662254f2ed788d32e2466739adc8d655c732Andreas Huber 1969d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } else { 1970d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang uint8_t *dstData = (uint8_t *)mBuffer->data(); 1971d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang size_t srcOffset = 0; 1972d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang size_t dstOffset = 0; 1973909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber 1974d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang while (srcOffset < size) { 1975d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang CHECK(srcOffset + mNALLengthSize <= size); 1976d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang size_t nalLength = parseNALSize(&mSrcBuffer[srcOffset]); 1977d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang srcOffset += mNALLengthSize; 1978909255a9cf425534e4a8b582a320686852dc59dcAndreas Huber 1979d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (srcOffset + nalLength > size) { 1980d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mBuffer->release(); 1981d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mBuffer = NULL; 19824f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 1983d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang return ERROR_MALFORMED; 1984d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 1985d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang 1986d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang if (nalLength == 0) { 1987d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang continue; 1988d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 19894f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 1990d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang CHECK(dstOffset + 4 <= mBuffer->size()); 19914f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 1992d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang dstData[dstOffset++] = 0; 1993d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang dstData[dstOffset++] = 0; 1994d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang dstData[dstOffset++] = 0; 1995d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang dstData[dstOffset++] = 1; 1996d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang memcpy(&dstData[dstOffset], &mSrcBuffer[srcOffset], nalLength); 1997d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang srcOffset += nalLength; 1998d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang dstOffset += nalLength; 1999d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang } 2000d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang CHECK_EQ(srcOffset, size); 2001d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang CHECK(mBuffer != NULL); 2002d5770917a50a828cb4337c2a392b3e4a375624b9Gloria Wang mBuffer->set_range(0, dstOffset); 20034f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber } 20044f5e602e1773a2990bb1f34f09875bd5cd057e5aAndreas Huber 2005e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer->meta_data()->clear(); 2006fa8de752507feaca695123911915070c1ce463b2Andreas Huber mBuffer->meta_data()->setInt64( 2007fa8de752507feaca695123911915070c1ce463b2Andreas Huber kKeyTime, ((int64_t)dts * 1000000) / mTimescale); 20086624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 20096624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber if (targetSampleTimeUs >= 0) { 20106624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber mBuffer->meta_data()->setInt64( 20116624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber kKeyTargetTime, targetSampleTimeUs); 20126624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber } 20136624c9fd0bc5e3858a22a04c05b5059445c1c367Andreas Huber 2014ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber if (isSyncSample) { 2015ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1); 2016ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber } 2017ad98d383a04fce08a147b200e23b12f12b2681a3Andreas Huber 2018e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber ++mCurrentSampleIndex; 2019e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2020e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber *out = mBuffer; 2021e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber mBuffer = NULL; 2022e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2023e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return OK; 2024e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 2025e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 2026e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2027261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huberstatic bool LegacySniffMPEG4( 2028be06d26cdc70070654f1eedcd08c1c68cd587ad6Andreas Huber const sp<DataSource> &source, String8 *mimeType, float *confidence) { 2029e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber uint8_t header[8]; 2030e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 20319a12baf929ea803915d7ab626b200ffefb4fbac7Andreas Huber ssize_t n = source->readAt(4, header, sizeof(header)); 2032e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (n < (ssize_t)sizeof(header)) { 2033e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return false; 2034e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 2035e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2036e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber if (!memcmp(header, "ftyp3gp", 7) || !memcmp(header, "ftypmp42", 8) 2037e1130662d0455231853e7d6880bb84d8547d7229James Dong || !memcmp(header, "ftyp3gr6", 8) || !memcmp(header, "ftyp3gs6", 8) 2038e1130662d0455231853e7d6880bb84d8547d7229James Dong || !memcmp(header, "ftyp3ge6", 8) || !memcmp(header, "ftyp3gg6", 8) 20396bce6d87b3fd98e68fb54328fb4dc8e40cd2c293Andreas Huber || !memcmp(header, "ftypisom", 8) || !memcmp(header, "ftypM4V ", 8) 2040dfb8eee5bd1359d8042c1fd2f5143b416c09dfddAndreas Huber || !memcmp(header, "ftypM4A ", 8) || !memcmp(header, "ftypf4v ", 8) 2041eea1eefeada90ec54488e1742e81e4226fc6ace5Andreas Huber || !memcmp(header, "ftypkddi", 8) || !memcmp(header, "ftypM4VP", 8)) { 2042e6c409632f773e41f33188272a0072be9fcb783fAndreas Huber *mimeType = MEDIA_MIMETYPE_CONTAINER_MPEG4; 2043efdd088a71ddd0a96cf9ca2f58e8703fe8c5c494Andreas Huber *confidence = 0.4; 2044e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2045e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return true; 2046e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber } 2047e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2048e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber return false; 2049e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} 2050e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2051261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huberstatic bool isCompatibleBrand(uint32_t fourcc) { 2052261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber static const uint32_t kCompatibleBrands[] = { 2053261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber FOURCC('i', 's', 'o', 'm'), 2054261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber FOURCC('i', 's', 'o', '2'), 2055261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber FOURCC('a', 'v', 'c', '1'), 2056261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber FOURCC('3', 'g', 'p', '4'), 2057261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber FOURCC('m', 'p', '4', '1'), 2058261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber FOURCC('m', 'p', '4', '2'), 2059261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber }; 2060261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2061261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber for (size_t i = 0; 2062261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber i < sizeof(kCompatibleBrands) / sizeof(kCompatibleBrands[0]); 2063261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber ++i) { 2064261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (kCompatibleBrands[i] == fourcc) { 2065261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return true; 2066261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2067261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2068261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2069261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return false; 2070261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber} 2071261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2072261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber// Attempt to actually parse the 'ftyp' atom and determine if a suitable 2073261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber// compatible brand is present. 2074261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huberstatic bool BetterSniffMPEG4( 2075261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber const sp<DataSource> &source, String8 *mimeType, float *confidence) { 2076261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber uint8_t header[12]; 2077261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (source->readAt(0, header, 12) != 12 2078261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber || memcmp("ftyp", &header[4], 4)) { 2079261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return false; 2080261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2081261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2082261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber size_t atomSize = U32_AT(&header[0]); 2083261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (atomSize < 16 || (atomSize % 4) != 0) { 2084261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return false; 2085261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2086261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2087261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber bool success = false; 2088261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (isCompatibleBrand(U32_AT(&header[8]))) { 2089261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber success = true; 2090261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } else { 2091261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber size_t numCompatibleBrands = (atomSize - 16) / 4; 2092261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber for (size_t i = 0; i < numCompatibleBrands; ++i) { 2093261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber uint8_t tmp[4]; 2094261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (source->readAt(16 + i * 4, tmp, 4) != 4) { 2095261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return false; 2096261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2097261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2098261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (isCompatibleBrand(U32_AT(&tmp[0]))) { 2099261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber success = true; 2100261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber break; 2101261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2102261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2103261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2104261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2105261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (!success) { 2106261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return false; 2107261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2108261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2109261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber *mimeType = MEDIA_MIMETYPE_CONTAINER_MPEG4; 2110efdd088a71ddd0a96cf9ca2f58e8703fe8c5c494Andreas Huber *confidence = 0.4f; 2111261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2112261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return true; 2113261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber} 2114261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2115261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huberbool SniffMPEG4( 2116efdd088a71ddd0a96cf9ca2f58e8703fe8c5c494Andreas Huber const sp<DataSource> &source, String8 *mimeType, float *confidence, 2117efdd088a71ddd0a96cf9ca2f58e8703fe8c5c494Andreas Huber sp<AMessage> *) { 2118261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (BetterSniffMPEG4(source, mimeType, confidence)) { 2119261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return true; 2120261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2121261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2122261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber if (LegacySniffMPEG4(source, mimeType, confidence)) { 2123261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber LOGW("Identified supported mpeg4 through LegacySniffMPEG4."); 2124261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return true; 2125261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber } 2126261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2127261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber return false; 2128261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber} 2129261eb0cbef1f3f7d3cde49d628b9c1e82dabcb76Andreas Huber 2130e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber} // namespace android 2131e46b7be812d68e49710b34048662cbf18e2a6550Andreas Huber 2132