120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber/* 220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Copyright (C) 2009 The Android Open Source Project 320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * you may not use this file except in compliance with the License. 620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * You may obtain a copy of the License at 720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 1020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Unless required by applicable law or agreed to in writing, software 1120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 1220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * See the License for the specific language governing permissions and 1420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * limitations under the License. 1520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber */ 1620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 17f1d5aa162c02a16b7195a43a9bcea4d592600ac4James Dong#include <media/stagefright/foundation/ADebug.h> 1820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <media/stagefright/FileSource.h> 19c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong#include <sys/types.h> 20c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong#include <unistd.h> 21674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong#include <sys/types.h> 22674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong#include <sys/stat.h> 23674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong#include <fcntl.h> 2420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2520111aa043c5f404472bc63b90bc5aad906b1101Andreas Hubernamespace android { 2620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2720111aa043c5f404472bc63b90bc5aad906b1101Andreas HuberFileSource::FileSource(const char *filename) 28674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong : mFd(-1), 2903475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber mOffset(0), 30dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mLength(-1), 31dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDecryptHandle(NULL), 32dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmManagerClient(NULL), 33dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBufOffset(0), 34dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBufSize(0), 35dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBuf(NULL){ 36674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong 37674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong mFd = open(filename, O_LARGEFILE | O_RDONLY); 384ee31e2603b4019e4ae76e027115f80b818527aaAndreas Huber 394ee31e2603b4019e4ae76e027115f80b818527aaAndreas Huber if (mFd >= 0) { 404ee31e2603b4019e4ae76e027115f80b818527aaAndreas Huber mLength = lseek64(mFd, 0, SEEK_END); 41f4b7d94062c896dca565d849c6188cd3489be257Andreas Huber } else { 42f4b7d94062c896dca565d849c6188cd3489be257Andreas Huber ALOGE("Failed to open file '%s'. (%s)", filename, strerror(errno)); 434ee31e2603b4019e4ae76e027115f80b818527aaAndreas Huber } 4403475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber} 4503475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber 4603475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas HuberFileSource::FileSource(int fd, int64_t offset, int64_t length) 47674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong : mFd(fd), 4803475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber mOffset(offset), 49dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mLength(length), 50dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDecryptHandle(NULL), 51dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmManagerClient(NULL), 52dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBufOffset(0), 53dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBufSize(0), 54dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBuf(NULL){ 5503475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber CHECK(offset >= 0); 5603475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber CHECK(length >= 0); 5720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 5820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 5920111aa043c5f404472bc63b90bc5aad906b1101Andreas HuberFileSource::~FileSource() { 60674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong if (mFd >= 0) { 61674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong close(mFd); 62674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong mFd = -1; 6320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 64dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang 65dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang if (mDrmBuf != NULL) { 66dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang delete[] mDrmBuf; 67dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBuf = NULL; 68dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } 69889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang 70889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang if (mDecryptHandle != NULL) { 71889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang // To release mDecryptHandle 728f64134f749e4f7861a08a3063450fc714c4651dGloria Wang CHECK(mDrmManagerClient); 73889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang mDrmManagerClient->closeDecryptSession(mDecryptHandle); 74889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang mDecryptHandle = NULL; 75889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang } 76889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang 77889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang if (mDrmManagerClient != NULL) { 78889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang delete mDrmManagerClient; 79889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang mDrmManagerClient = NULL; 80889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang } 8120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 8220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 8334769bc913e9f6bb138e666d94a9d685bf3da217Andreas Huberstatus_t FileSource::initCheck() const { 84674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong return mFd >= 0 ? OK : NO_INIT; 8520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 8620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 87c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dongssize_t FileSource::readAt(off64_t offset, void *data, size_t size) { 88674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong if (mFd < 0) { 893d8055ac96170de7a8c49b9ffbe83ed447ccddceAndreas Huber return NO_INIT; 903d8055ac96170de7a8c49b9ffbe83ed447ccddceAndreas Huber } 913d8055ac96170de7a8c49b9ffbe83ed447ccddceAndreas Huber 9220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex::Autolock autoLock(mLock); 9320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 9403475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber if (mLength >= 0) { 9503475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber if (offset >= mLength) { 9603475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber return 0; // read beyond EOF. 9703475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber } 9803475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber int64_t numAvailable = mLength - offset; 9903475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber if ((int64_t)size > numAvailable) { 10003475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber size = numAvailable; 10103475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber } 10203475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber } 10303475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber 104dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang if (mDecryptHandle != NULL && DecryptApiType::CONTAINER_BASED 105dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang == mDecryptHandle->decryptApiType) { 106dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang return readAtDRM(offset, data, size); 107dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } else { 108c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t result = lseek64(mFd, offset + mOffset, SEEK_SET); 109c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong if (result == -1) { 11029357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("seek to %lld failed", offset + mOffset); 111dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang return UNKNOWN_ERROR; 112dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } 11320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 114c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong return ::read(mFd, data, size); 115dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } 11603475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber} 11703475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber 118c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dongstatus_t FileSource::getSize(off64_t *size) { 1193a13fad63af40a8364fce796b1a54a8f0a2fbf32Andreas Huber Mutex::Autolock autoLock(mLock); 1203a13fad63af40a8364fce796b1a54a8f0a2fbf32Andreas Huber 121674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong if (mFd < 0) { 1223d8055ac96170de7a8c49b9ffbe83ed447ccddceAndreas Huber return NO_INIT; 1233d8055ac96170de7a8c49b9ffbe83ed447ccddceAndreas Huber } 1243d8055ac96170de7a8c49b9ffbe83ed447ccddceAndreas Huber 1254ee31e2603b4019e4ae76e027115f80b818527aaAndreas Huber *size = mLength; 12620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 12703475f5af25e4aa32d46d41dd2ec756853d8dd9dAndreas Huber return OK; 12820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 12920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1309d2f386dd2885eaffa11fd494ae258bb09fe6397James Dongsp<DecryptHandle> FileSource::DrmInitialization(const char *mime) { 131889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang if (mDrmManagerClient == NULL) { 132889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang mDrmManagerClient = new DrmManagerClient(); 133889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang } 134889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang 135889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang if (mDrmManagerClient == NULL) { 136b371426ce4cf2fa6d8c3d1903b61322feb165d35Gloria Wang return NULL; 137b371426ce4cf2fa6d8c3d1903b61322feb165d35Gloria Wang } 138b371426ce4cf2fa6d8c3d1903b61322feb165d35Gloria Wang 139dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang if (mDecryptHandle == NULL) { 140dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDecryptHandle = mDrmManagerClient->openDecryptSession( 1419d2f386dd2885eaffa11fd494ae258bb09fe6397James Dong mFd, mOffset, mLength, mime); 142dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } 143dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang 144dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang if (mDecryptHandle == NULL) { 145889b340ec736a9d3e3e690256d305cc8740f0c4bGloria Wang delete mDrmManagerClient; 146dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmManagerClient = NULL; 147dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } 148dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang 149dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang return mDecryptHandle; 150dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang} 151dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang 152b5ce361d19e69fe156f7188c9ee0f4734b259874Gloria Wangvoid FileSource::getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client) { 153b5ce361d19e69fe156f7188c9ee0f4734b259874Gloria Wang handle = mDecryptHandle; 154dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang 155dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang *client = mDrmManagerClient; 156dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang} 157dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang 158c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dongssize_t FileSource::readAtDRM(off64_t offset, void *data, size_t size) { 159dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang size_t DRM_CACHE_SIZE = 1024; 160dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang if (mDrmBuf == NULL) { 161dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBuf = new unsigned char[DRM_CACHE_SIZE]; 162dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } 163dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang 164dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang if (mDrmBuf != NULL && mDrmBufSize > 0 && (offset + mOffset) >= mDrmBufOffset 165dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang && (offset + mOffset + size) <= (mDrmBufOffset + mDrmBufSize)) { 166dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang /* Use buffered data */ 167dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang memcpy(data, (void*)(mDrmBuf+(offset+mOffset-mDrmBufOffset)), size); 168dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang return size; 169dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } else if (size <= DRM_CACHE_SIZE) { 170dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang /* Buffer new data */ 171dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBufOffset = offset + mOffset; 172dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang mDrmBufSize = mDrmManagerClient->pread(mDecryptHandle, mDrmBuf, 173dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang DRM_CACHE_SIZE, offset + mOffset); 174dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang if (mDrmBufSize > 0) { 175dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang int64_t dataRead = 0; 176dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang dataRead = size > mDrmBufSize ? mDrmBufSize : size; 177dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang memcpy(data, (void*)mDrmBuf, dataRead); 178dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang return dataRead; 179dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } else { 180dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang return mDrmBufSize; 181dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } 182dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } else { 183dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang /* Too big chunk to cache. Call DRM directly */ 184dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang return mDrmManagerClient->pread(mDecryptHandle, data, size, offset + mOffset); 185dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang } 186dcd25efb46c41c8d24a0a9cf61fb57f84149709eGloria Wang} 18720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 188