7284b7e7f3
See https://android-git.corp.google.com/g/#/c/157220 Bug: 5449033 Change-Id: I9b2273ef758c78d927591c1a0a9f988de739742c
70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "WVMFileSource"
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#include <utils/Log.h>
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#include "WVMFileSource.h"
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#include "media/stagefright/MediaErrors.h"
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#include "media/stagefright/MediaDefs.h"
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#include "media/stagefright/MediaDebug.h"
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namespace android {
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WVMFileSource::WVMFileSource(sp<DataSource> &dataSource)
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: mDataSource(dataSource),
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mOffset(0), mLogOnce(true)
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{
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}
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unsigned long long WVMFileSource::GetSize()
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{
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off64_t size;
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mDataSource->getSize(&size);
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return size;
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}
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unsigned long long WVMFileSource::GetOffset()
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{
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return mOffset;
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}
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void WVMFileSource::Seek(unsigned long long offset)
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{
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mOffset = offset;
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}
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size_t WVMFileSource::Read(size_t amount, unsigned char *buffer)
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{
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ssize_t result = mDataSource->readAt(mOffset, buffer, amount);
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if (result < 0) {
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if (mLogOnce) {
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ALOGE("mDataSource-readAt returned error %d\n", (int)result );
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mLogOnce = false;
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}
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result = 0;
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} else {
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mOffset += result;
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mLogOnce = true;
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}
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return result;
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}
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} // namespace android
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