pci.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 "PCI.h"
#include "Sector.h"

#include "util/Log.h"

#include <libmpdvdkit/nav_read.h>
#include <libmpdvdkit/nav_print.h>

#include <cassert>

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

using dvd::demux::PCI;
using dvd::demux::ButtonInformation;
using dvd::demux::HighlightInformation;

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

void PCI::set(const unsigned char* d)
{
    assert(d!=0);
    navRead_PCI(&pci, const_cast<unsigned char*>(d));
//     if (pci.hli.hl_gi.btngr_ns>1) {
//         navPrint_PCI(&pci);
//     }
}

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

void PCI::set(const Sector& sector)
{
    static const unsigned char header[] = {
        0x00, 0x00, 0x01, 0xbf, 0x03, 0xd4, 0x00
    };

    size_t index = sector.findPESHeader<sizeof(header)>(header);
    assert(index>0);

    set(sector.getData() + index);
}

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

bool HighlightInformation::doesFormatMatch(unsigned displayType,
                                           displayFormat_t displayFormat)
{
    return 
        (displayType==0 && displayFormat==DF_SMALLSCREEN) ||
        ( (displayType&0x01)==0x01 && displayFormat==DF_WIDESCREEN) ||
        ( (displayType&0x02)==0x02 && displayFormat==DF_LETTERBOX) ||
        ( (displayType&0x04)==0x04 && displayFormat==DF_PANSCAN);
}

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

ButtonInformation 
HighlightInformation::getButtonInformation(size_t buttonNumber,
                                           displayFormat_t displayFormat) const
{
    assert(getGeneral().isValidButton(buttonNumber));

    size_t groupNumber = (size_t)-1;
    
    size_t numberOfButtonGroups = hli->hl_gi.btngr_ns;
    size_t buttonGroupSize = 
        (numberOfButtonGroups>=1) ? 
        (maxNumberOfButtons / numberOfButtonGroups) : maxNumberOfButtons;

    if (numberOfButtonGroups==1 ||
        doesFormatMatch(hli->hl_gi.btngr1_dsp_ty, displayFormat)) {
        groupNumber = 0;
    } else if (numberOfButtonGroups>=2 && 
               doesFormatMatch(hli->hl_gi.btngr2_dsp_ty, displayFormat)) {
        groupNumber = 1;
    } else if (numberOfButtonGroups>=3 && 
               doesFormatMatch(hli->hl_gi.btngr3_dsp_ty, displayFormat)) {
        groupNumber = 2;
    } else {
        groupNumber = 0;
    }

    return ButtonInformation(hli->btnit + groupNumber * buttonGroupSize + 
                             buttonNumber - 1);
}

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