54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
/*
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* Copyright (C) 2009 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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#include <media/stagefright/foundation/ADebug.h>
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#include "StreamSource.h"
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namespace android {
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StreamSource::StreamSource(SkStream *stream)
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: mStream(stream) {
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CHECK(stream != NULL);
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mSize = stream->getLength();
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}
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StreamSource::~StreamSource() {
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delete mStream;
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mStream = NULL;
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}
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status_t StreamSource::initCheck() const {
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return mStream != NULL ? OK : NO_INIT;
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}
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ssize_t StreamSource::readAt(off64_t offset, void *data, size_t size) {
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Mutex::Autolock autoLock(mLock);
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mStream->rewind();
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mStream->skip(offset);
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ssize_t result = mStream->read(data, size);
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return result;
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}
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status_t StreamSource::getSize(off64_t *size) {
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*size = mSize;
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return OK;
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}
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} // namespace android
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