FileSource.cpp revision 0c89199745bc1bf05b997fc7c342017807676b6f
120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber/* 220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Copyright (C) 2009 The Android Open Source Project 320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * you may not use this file except in compliance with the License. 620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * You may obtain a copy of the License at 720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 1020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Unless required by applicable law or agreed to in writing, software 1120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 1220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * See the License for the specific language governing permissions and 1420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * limitations under the License. 1520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber */ 1620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <media/stagefright/FileSource.h> 180c89199745bc1bf05b997fc7c342017807676b6fAndreas Huber#include <media/stagefright/MediaDebug.h> 1920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2020111aa043c5f404472bc63b90bc5aad906b1101Andreas Hubernamespace android { 2120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2220111aa043c5f404472bc63b90bc5aad906b1101Andreas HuberFileSource::FileSource(const char *filename) 2320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber : mFile(fopen(filename, "rb")) { 2420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 2520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2620111aa043c5f404472bc63b90bc5aad906b1101Andreas HuberFileSource::~FileSource() { 2720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber if (mFile != NULL) { 2820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber fclose(mFile); 2920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber mFile = NULL; 3020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber } 3120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 3220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberstatus_t FileSource::InitCheck() const { 3420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return mFile != NULL ? OK : NO_INIT; 3520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 3620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 3720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberssize_t FileSource::read_at(off_t offset, void *data, size_t size) { 3820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex::Autolock autoLock(mLock); 3920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber int err = fseeko(mFile, offset, SEEK_SET); 410c89199745bc1bf05b997fc7c342017807676b6fAndreas Huber CHECK(err != -1); 4220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber ssize_t result = fread(data, 1, size, mFile); 4420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber return result; 4620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} 4720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 49