videohandler.cc

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

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

#include "VideoHandler.h"

#include "output/VideoAttributes.h"

#include "dxr3/Video.h"

#include "util/Config.h"

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

using output::dxr3::VideoHandler;

using dvd::packet::PacketQueue;

using dxr3::Video;

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

VideoHandler::VideoHandler(Timer& timer,
                           PacketQueue& inputQueue, 
                           Video& videoDevice) :
    TimedStreamHandler("output::dxr3::VideoHandler",
                       timer, inputQueue, videoDevice.getStream(),
                       16),
    videoDevice(videoDevice)
{
    const Config& config = Config::get();
    
    videoDevice.setBCS(config.defaultBrightness,
                       config.defaultContrast,
                       config.defaultSaturation);
}

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

void VideoHandler::printStatus() const
{
    int brightness, contrast, saturation;

    videoDevice.getBCS(brightness, contrast, saturation);

    Log::debug("  brightness: %d, contrast: %d, saturation: %d\n",
               brightness, contrast, saturation);
}

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

void VideoHandler::setAttributes(const VideoAttributes& attributes)
{
    const Config& config = Config::get();

    if (!config.keepStandard &&
        videoDevice.getStandard()!=attributes.standard) 
    {
        videoDevice.setStandard(attributes.standard);
    }
    if (!config.keepAspectRatio && 
        videoDevice.getAspectRatio()!=attributes.aspectRatio) 
    {
        videoDevice.setAspectRatio(attributes.aspectRatio);
    }
}

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

bool VideoHandler::isDifferent(const VideoAttributes& attributes) const
{
    const Config& config = Config::get();

    return 
        (!config.keepStandard &&
         videoDevice.getStandard()!=attributes.standard) ||
        (!config.keepAspectRatio &&
         videoDevice.getAspectRatio()!=attributes.aspectRatio);
}

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

unsigned VideoHandler::increaseBrightness()
{
    int brightness;
    int contrast;
    int saturation;

    videoDevice.getBCS(brightness, contrast, saturation);

    if (brightness<=95) {
        brightness += 5;
        videoDevice.setBCS(brightness, contrast, saturation);
    }
    
    return brightness;
}

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

unsigned VideoHandler::decreaseBrightness()
{
    int brightness;
    int contrast;
    int saturation;

    videoDevice.getBCS(brightness, contrast, saturation);

    if (brightness>=5) {
        brightness -= 5;
        videoDevice.setBCS(brightness, contrast, saturation);
    }
    
    return brightness;
}

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

unsigned VideoHandler::increaseContrast()
{
    int brightness;
    int contrast;
    int saturation;

    videoDevice.getBCS(brightness, contrast, saturation);

    if (contrast<=95) {
        contrast += 5;
        videoDevice.setBCS(brightness, contrast, saturation);
    }
    
    return contrast;
}

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

unsigned VideoHandler::decreaseContrast()
{
    int brightness;
    int contrast;
    int saturation;

    videoDevice.getBCS(brightness, contrast, saturation);

    if (contrast>=5) {
        contrast -= 5;
        videoDevice.setBCS(brightness, contrast, saturation);
    }
    
    return contrast;
}

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

unsigned VideoHandler::increaseSaturation()
{
    int brightness;
    int contrast;
    int saturation;

    videoDevice.getBCS(brightness, contrast, saturation);

    if (saturation<=95) {
        saturation += 5;
        videoDevice.setBCS(brightness, contrast, saturation);
    }
    
    return saturation;
}

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

unsigned VideoHandler::decreaseSaturation()
{
    int brightness;
    int contrast;
    int saturation;

    videoDevice.getBCS(brightness, contrast, saturation);

    if (saturation>=5) {
        saturation -= 5;
        videoDevice.setBCS(brightness, contrast, saturation);
    }
    
    return saturation;
}

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