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/*
* Copyright (C) 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 FRAME_DROPPER_H_
#define FRAME_DROPPER_H_
#include <utils/Errors.h>
#include <utils/RefBase.h>
#include <media/stagefright/foundation/ABase.h>
namespace android {
struct FrameDropper : public RefBase {
// No frames will be dropped until a valid max frame rate is set.
FrameDropper();
// maxFrameRate required to be positive.
status_t setMaxFrameRate(float maxFrameRate);
// Returns false if max frame rate has not been set via setMaxFrameRate.
bool shouldDrop(int64_t timeUs);
protected:
virtual ~FrameDropper();
private:
int64_t mDesiredMinTimeUs;
int64_t mMinIntervalUs;
DISALLOW_EVIL_CONSTRUCTORS(FrameDropper);
};
} // namespace android
#endif // FRAME_DROPPER_H_
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