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/*
* Copyright 2015 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.
*/
#ifndef ANDROID_CALLBACKDATASOURCE_H
#define ANDROID_CALLBACKDATASOURCE_H
#include <media/stagefright/DataSource.h>
#include <media/stagefright/foundation/ADebug.h>
namespace android {
class IDataSource;
class IMemory;
// A stagefright DataSource that wraps a binder IDataSource. It's a "Callback"
// DataSource because it calls back to the IDataSource for data.
class CallbackDataSource : public DataSource {
public:
CallbackDataSource(const sp<IDataSource>& iDataSource);
virtual ~CallbackDataSource();
// DataSource implementation.
virtual status_t initCheck() const;
virtual ssize_t readAt(off64_t offset, void *data, size_t size);
virtual status_t getSize(off64_t *size);
private:
sp<IDataSource> mIDataSource;
sp<IMemory> mMemory;
DISALLOW_EVIL_CONSTRUCTORS(CallbackDataSource);
};
}; // namespace android
#endif // ANDROID_CALLBACKDATASOURCE_H
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