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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <media/stagefright/MediaDebug.h>
#include "StreamSource.h"
namespace android {
StreamSource::StreamSource(SkStream *stream)
: mStream(stream) {
CHECK(stream != NULL);
mSize = stream->getLength();
}
StreamSource::~StreamSource() {
delete mStream;
mStream = NULL;
}
status_t StreamSource::initCheck() const {
return mStream != NULL ? OK : NO_INIT;
}
ssize_t StreamSource::readAt(off_t offset, void *data, size_t size) {
Mutex::Autolock autoLock(mLock);
mStream->rewind();
mStream->skip(offset);
ssize_t result = mStream->read(data, size);
return result;
}
status_t StreamSource::getSize(off_t *size) {
*size = mSize;
return OK;
}
} // namespace android
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