PC World 2008 March/PCWorld_2008-03_cd.bin/v cisle/mediacoder/MediaCoder-0.6.1.4045.exe/htdocs/wmcfg/wmcfg.js

Text File | 2007-05-27 | 5KB | 189 lines

var url = document.location.href;
var xmlhttp = new XMLHttpRequest;

function GetToken(str, token)
{
    var idx = str.indexOf(token + '=');
    if (idx <= 0) return null;
    var argstr = str.substring(idx + token.length + 1);
    idx = argstr.indexOf('&');
    return idx >=0 ? argstr.substring(0, idx) : argstr;
}

function SetPref(param, val)
{
    xmlhttp.open("GET", "/prefs/set?" + param + "=" + val, false);
    xmlhttp.send(null);
}

function GetPref(param)
{
    xmlhttp.open("GET", "/prefs/get?path=" + param, false);
    xmlhttp.send(null);
    return xmlhttp.responseText;
}

function GetPrefInt(param)
{
    xmlhttp.open("GET", "/prefs/get?type=int&path=" + param, false);
    xmlhttp.send(null);
    return parseInt(xmlhttp.responseText);
}

function RevertPrefValue(param)
{
    xmlhttp.open("GET", "/prefs/revert?path=" + param, false);
    xmlhttp.send(null);
    return xmlhttp.responseText;
}

function loadXML(xmlFile)
{
    var $xml = new XMLHttpRequest;
    $xml.open('GET', xmlFile, false);
    $xml.overrideMimeType('text/xml');
    $xml.send(null);
    var xml = $xml.responseXML;
    if (!xml) {
        alert("Unable to load "+xmlFile);
        return null;
    }
    return xml;
}

function transformXML(xmlDoc, xslDoc, element)
{
    var XSLT = new XSLTProcessor;
    XSLT.importStylesheet(xslDoc);
    var e = document.getElementById(element);
    if (e) {
        while (e.firstChild) e.removeChild(e.firstChild);
        e.appendChild(XSLT.transformToFragment(xmlDoc, document));
    }
}

function trim(stringToTrim) {
    return stringToTrim.replace(/^\s+|\s+$/g,"");
}
function ltrim(stringToTrim) {
    return stringToTrim.replace(/^\s+/,"");
}
function rtrim(stringToTrim) {
    return stringToTrim.replace(/\s+$/,"");
}

var xmlCodecInfo;

function onChangeAudioCodec(me)
{
    SetPref("videoenc.wm.audioCodec", me.selectedItem.label);
    RefreshFormats(me.selectedIndex, document.getElementById('modeList').selectedIndex);
}

function onChangeAudioMode(me)
{
    SetPref("videoenc.wm.audioMode", me.selectedItem.label);
    RefreshFormats(document.getElementById('codecList').selectedIndex, me.selectedIndex);
    SetPref('videoenc.wm.audioFormat', document.getElementById("formatList").selectedItem.getAttribute("label"));
}

function onChangeVideoMode(me)
{
    SetPref('overall.video.mode', me.selectedIndex)
    document.getElementById("bitrateDeck").selectedIndex = me.selectedIndex == 1 ? 1 : 0;
}

function RefreshFormats(codecIndex, modeIndex)
{
    var r = xmlCodecInfo.getElementsByTagName("category");
    var codecs = r[0].getElementsByTagName("codec");    // audio category
    var modes = codecs[codecIndex].getElementsByTagName("mode");
    var formats = modes[modeIndex].getElementsByTagName("format");

        var e = document.getElementById("formatList");
    var name;
    var idx = 0;
    v = GetPref("videoenc.wm.audioFormat");
    e.removeAllItems();
        for (i = 0; i < formats.length; i++) {
        name = trim(formats[i].childNodes[1].firstChild.nodeValue);
                e.appendItem(name, "", "");
        if (name == v) idx = i;
        }
    e.selectedIndex = idx;
}

function Refresh()
{
    var r = xmlCodecInfo.getElementsByTagName("category");

    // update audio codec list
    var codecs = r[0].getElementsByTagName("codec");    // audio codecs
    var v = GetPref("videoenc.wm.audioCodec");
        e = document.getElementById("codecList");
    var audioCodecIndex = 0;
    var name;
    e.removeAllItems();
        for (i = 0; i < codecs.length; i++) {
        name = codecs[i].getAttribute("name");
                e.appendItem(name, "", "");
        if (name == v) audioCodecIndex = i;
        }
    e.selectedIndex = audioCodecIndex;

    // update mode list
    var modes = codecs[audioCodecIndex].getElementsByTagName("mode");
    v = GetPref("videoenc.wm.audioMode");
        e = document.getElementById("modeList");
    var audioModeIndex = 0;
    e.removeAllItems();
        for (i = 0; i < modes.length; i++) {
        name = modes[i].getAttribute("name");
                e.appendItem(name, "", "");
        if (v == name) audioModeIndex = i;
        }
    e.selectedIndex = audioModeIndex;

    // update video codec list
    var codecs = r[1].getElementsByTagName("codec");    // video codecs
        var e = document.getElementById("videoCodecList");
    var videoCodecIndex = 0;
    v = GetPref("videoenc.wm.videoCodec");
    e.removeAllItems();
        for (i = 0; i < codecs.length; i++) {
        var name = trim(codecs[i].getAttribute("name"));
                e.appendItem(name, "", "");
        if (name == v) videoCodecIndex = i;
        }
    e.selectedIndex = videoCodecIndex;

    RefreshFormats(audioCodecIndex, audioModeIndex);

    var vmode = GetPrefInt("overall.video.mode");
    document.getElementById("videoMode").selectedIndex = vmode;
    document.getElementById("bitrateDeck").selectedIndex = vmode == 1 ? 1 : 0;

    // video bitrate
    e = document.getElementById("vb");
    v = GetPref("overall.video.bitrate");
    e.value = v;
    e.nextSibling.setAttribute("curpos", v);

    // video quality
    e = document.getElementById("vq");
    v = GetPref("overall.video.quality");
    e.value = v;
    e.nextSibling.setAttribute("curpos", v);
}

function Init()
{
    var e = document.getElementById("wmcfg");
    window.innerWidth = e.width;
    window.innerHeight = e.height;

    xmlCodecInfo = loadXML("/mc/wmcodecs.xml");

    Refresh();
}