videohandler.h

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2003 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef DXR3PLAYER_OUTPUT_DXR3_VIDEOHANDLER_H
#define DXR3PLAYER_OUTPUT_DXR3_VIDEOHANDLER_H
//------------------------------------------------------------------------------

#include "output/dxr3/TimedStreamHandler.h"

//------------------------------------------------------------------------------

namespace dxr3 {

class Video;

}

//------------------------------------------------------------------------------

namespace output {

class VideoAttributes;

}

//------------------------------------------------------------------------------

namespace output { namespace dxr3 {

//------------------------------------------------------------------------------

/**
 * Vide data handler.
 */
class VideoHandler : public TimedStreamHandler
{
    /**
     * The DXR3 object to interface the DXR3 board.
     */
    ::dxr3::Video& videoDevice;

public:
    /**
     * Construct the video handler.
     */
    VideoHandler(Timer& timer, 
                 dvd::packet::PacketQueue& inputQueue, 
                 ::dxr3::Video& videoDevice);

    /**
     * @see sched::Schedulable::printStatus
     */
    virtual void printStatus() const;

    /**
     * Set the given attributes.
     */
    void setAttributes(const VideoAttributes& attributes);

    /**
     * Determine if the given attributes means a difference for the
     * video handler.
     */
    bool isDifferent(const VideoAttributes& attributes) const;

    /**
     * Increase the brightness and return  the new value
     */
    unsigned increaseBrightness();

    /**
     * Decrease the brightness and return the new value.
     */
    unsigned decreaseBrightness();

    /**
     * Increase the contrast and return  the new value
     */
    unsigned increaseContrast();

    /**
     * Decrease the contrast and return the new value.
     */
    unsigned decreaseContrast();

    /**
     * Increase the saturation and return  the new value
     */
    unsigned increaseSaturation();

    /**
     * Decrease the saturation and return the new value.
     */
    unsigned decreaseSaturation();
};

//------------------------------------------------------------------------------

} /* namespace output::dxr3 */ } /* namespace dxr3 */

//------------------------------------------------------------------------------
#endif // DXR3PLAYER_OUTPUT_DXR3_AUDIOHANDLER_H

// Local variables:
// mode: c++
// End: