CaptionTimingAdapter.h

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file 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 ALEXA_CLIENT_SDK_CAPTIONS_IMPLEMENTATION_INCLUDE_CAPTIONS_CAPTIONTIMINGADAPTER_H_
#define ALEXA_CLIENT_SDK_CAPTIONS_IMPLEMENTATION_INCLUDE_CAPTIONS_CAPTIONTIMINGADAPTER_H_

#include <atomic>
#include <thread>
#include <vector>

#include <AVSCommon/Utils/MediaPlayer/MediaPlayerObserverInterface.h>
#include <AVSCommon/Utils/Threading/TaskThread.h>
#include <Captions/CaptionPresenterInterface.h>

#include "CaptionTimingAdapterInterface.h"
#include "SystemClockDelay.h"
#include "TimingAdapterFactory.h"

namespace alexaClientSDK {
namespace captions {

class CaptionTimingAdapter : public CaptionTimingAdapterInterface {
public:
    CaptionTimingAdapter(
        std::shared_ptr<CaptionPresenterInterface> presenter,
        std::shared_ptr<DelayInterface> delayInterface);

    virtual ~CaptionTimingAdapter() override;

    virtual void queueForDisplay(const CaptionFrame& captionFrame, bool autostart) override;
    virtual void reset() override;
    virtual void start() override;
    virtual void stop() override;
    virtual void pause() override;

private:
    void presentCaptionFramesJob();

    void startCaptionFramesJob();

    std::shared_ptr<CaptionPresenterInterface> m_presenter;

    std::mutex m_mutex;

    size_t m_currentCaptionFrameIndex;

    bool m_isCurrentlyPresenting;

    bool m_mediaHasBeenPaused;

    std::vector<captions::CaptionFrame> m_captionFrames;

    std::thread m_thread;

    std::string m_threadMoniker;

    std::shared_ptr<DelayInterface> m_delayInterface;
};

}  // namespace captions
}  // namespace alexaClientSDK

#endif  // ALEXA_CLIENT_SDK_CAPTIONS_IMPLEMENTATION_INCLUDE_CAPTIONS_CAPTIONTIMINGADAPTER_H_