pictureheader.cc

来自「Linux下比较早的基于命令行的DVD播放器」· CC 代码 · 共 109 行

//
// Copyright (c) 2004 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card, but now handles other
// hardware as well.

// 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 "PictureHeader.h"

#include "util/Log.h"

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

using mpeg::PictureHeader;

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

void PictureHeader::log() const
{
    Log::debug("  temporal reference=%u\n", temporalReference);

    const char* str = 0;
    switch(codingType) {
      case CODING_I:
        str = "I";
        break;
      case CODING_P:
        str = "P";
        break;
      case CODING_B:
        str = "B";
        break;
      default:
        str = "Unknown";
        break;
    }
    Log::debug("  coding type=%s-frame\n", str);

    Log::debug("  VBV delay=%u\n", vbvDelay);
    Log::debug("  fCode=[ [%u, %u], [%u, %u] ]\n", 
               fCode[0][0],
               fCode[0][1],
               fCode[1][0],
               fCode[1][1]);

    Log::debug("  intra-DC precision: %u\n", intraDCPrecision);

    switch(pictureStructure) {
      case PICTURE_TOP:
        str = "Top field";
        break;
      case PICTURE_BOTTOM:
        str = "Bottom field";
        break;
      case PICTURE_FRAME:
        str = "Frame picture";
        break;
      default:
        str = "Unknown";
        break;
    }
    Log::debug("  picture structure=%s\n", str);

    Log::debug("  top field is %sfirst\n", topFieldFirst ? "" : "not ");
    Log::debug("  %sonly frame DCT and prediction is used\n", 
               onlyFramePredAndDCT ? "" : "not ");
    Log::debug("  has %sconcealment motion vectors\n", 
               hasConcealmentMotionVectors ? "" : "no ");
    
    Log::debug("  quantiser scale type=%u\n", quantiserScaleType);
    Log::debug("  intra-VLC format=%u\n", intraVLCFormat);

    Log::debug("  %s scan method should be used\n", 
               alternateScan ? "alternate" : "normal");
    Log::debug("  first field should %sbe repeated\n", 
               repeatFirstField ? "" : "not ");
    Log::debug("  %sprogressive field\n", 
               progressiveFrame ? "" : "not ");

    Log::debug("  %scomposite display\n", 
               compositeDisplay ? "" : "not ");
    if (compositeDisplay) {
        Log::debug("  v-Axis=%u\n", vAxis);
        Log::debug("  field sequence=%u\n", fieldSequence);
        Log::debug("  sub-carrier/line frequency relationship is %sOK\n",
                   subCarrierNOK ? "not " : "");
        Log::debug("  burst amplitude=%u\n", burstAmplitude);
        Log::debug("  sub-carrier phase=%u\n", subCarrierPhase);
    }
}

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