/*****************************************************************************

 * Copyright (C) 2013-2020 MulticoreWare, Inc

 *

 * Authors: Gopu Govindaswamy <gopu@multicorewareinc.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.

 *

 * This program is also available under a commercial proprietary license.

 * For more information, contact us at license @ x265.com.

 *****************************************************************************/

#ifndef X265_PICLIST_H

#define X265_PICLIST_H

#include "common.h"

namespace X265_NS {

class Frame;

class PicList

{

protected:

    Frame*   m_start;

    Frame*   m_end;

    int      m_count;

public:

    PicList()

    {

        m_start = NULL;

        m_end   = NULL;

        m_count = 0;

    }

    /** Push picture to end of the list */

    void pushBack(Frame& pic);

    /** Push picture to beginning of the list */

    void pushFront(Frame& pic);

    /** Pop picture from end of the list */

    Frame* popBack();

    /** Pop picture from beginning of the list */

    Frame* popFront();

    /** Find frame with specified POC */

    Frame* getPOC(int poc);

    /** Get the current Frame from the list **/

    Frame* getCurFrame(void);

    /** Remove picture from list */

    void remove(Frame& pic);

    Frame* first()        { return m_start;   }

    Frame* last()         { return m_end;     }

    int size()            { return m_count;   }

    bool empty() const    { return !m_count;  }

    operator bool() const { return !!m_count; }

};

}

#endif // ifndef X265_PICLIST_H