importScripts('AVIInfo.js');
function duree(s) {
function onetotwo(Pint) {
if (Pint < 10) {
return '0' + Pint.toString();
} else {
return Pint.toString();
}
}
function onetothree(Pint) {
if (Pint < 10) {
return '00' + Pint.toString();
} else {
if (Pint < 100) {
return '0' + Pint.toString();
} else {
return Pint.toString();
}
}
}
var out = '';
var lhh = '';
var lmn = '';
var lss = '';
var lms = '';
lhh = Math.floor(s / 3600);
lmn = Math.floor((s - lhh * 3600) / 60);
lss = Math.floor(s - lhh * 3600 - lmn * 60);
lms = Math.ceil((s - lhh * 3600 - lmn * 60 - lss) * 1000);
if (lhh > 0) {
lhh = lhh.toString() + ":";
out = lhh;
}
if (lmn > 0) {
if (out.length == 0) {
out = lmn.toString() + ":";
} else {
out = out + onetotwo(lmn) + ":";
}
} else {
if (out.length > 0) {
out = out + "00:";
}
}
if (lss > 0) {
if (out.length == 0) {
out = lss.toString();
} else {
out = out + onetotwo(lss);
}
} else {
if (out.length == 0) {
out = "0";
} else {
out = out + "00";
}
}
if (lms != 0) {
out = out + '.' + onetothree(lms);
}
return out;
}
function humanFileSize(size) {
var i = Math.floor(Math.log(size) / Math.log(1024));
return (size / Math.pow(1024, i)).toFixed(2) * 1 + ' ' + ['o', 'ko', 'Mo', 'Go', 'To'][i];
};
function humanBitrate(size) {
var i = Math.floor(Math.log(size) / Math.log(1024));
return (size / Math.pow(1024, i)).toFixed(2) * 1 + ' ' + ['bps', 'kbps', 'Mbps', 'Gbps', 'Tbps'][i];
};
function human_reading(info) {
info.text = "ArouG's AVI Infos :\n";
info.text += "-------------------\n";
info.text += "File : " + info.filename + "\n";
var d= new Date(info.filedate);
info.text += "Date : " + (d.getFullYear()) + '/' + (d.getMonth() + 1) + '/' + d.getDate() + ' ' + d.getHours() + ':' + d.getMinutes() + "\n";
info.text += "Size : " + humanFileSize(info.filesize) + "\n";
info.text += "Format : AVI \n";
if (info.isOpenDML){
info.text += "Format profile : OPENDML\n";
}
if (info.AVIF_HASINDEX) {
info.text += "Indexed : Yes\n";
} else {
info.text += "Indexed : No\n";
}
info.text += "Duration : " + duree(info.dureeS) + "\n";
var DataSize = 0;
for (var i = 0; i < info.tracks.length; i++) DataSize += info.tracks[i].Totalsize;
GlobBitrate = 8 * DataSize / info.dureeS;
info.text += "Global bitrate : " + humanBitrate(GlobBitrate) + "\n";
if (info.swft){
if (info.swft.offset > 0) {
info.text += "Creator : " + info.swft.name + "\n";
}
}
info.text += "Count of streams : " + info.dwStreams + "\n";
info.text += "\n";
for (var i = 0; i < info.tracks.length; i++) {
if (info.tracks[i].strh.Typet == 'vids'){
info.text += "Video :\n";
}
if (info.tracks[i].strh.Typet == 'auds'){
info.text += "Audio :\n";
}
if (info.tracks[i].strh.Typet == 'txts'){
info.text += "Subtitles :\n";
}
info.text += "Track number " + (i+1) + "\n";
info.text += "Size : " + humanFileSize(info.tracks[i].Totalsize) + "\n";
info.text += "Count of samples : " + info.tracks[i].strh.dwLength + "\n";
info.text += "Duration : " + duree(info.tracks[i].strh.dureeS) + "\n";
var tmp = 8 * info.tracks[i].Totalsize / info.tracks[i].strh.dureeS;
if ((info.tracks[i].strh.Typet == 'vids') || (info.tracks[i].strh.Typet == 'auds')) {
info.text += "Global Bitrate : " + humanBitrate(tmp) + "\n";
}
if (info.tracks[i].strh.wLanguage != "```"){
info.text += "Langage : " + info.tracks[i].strh.wLanguage + "\n";
}
if (info.tracks[i].strh.Typet == 'vids') {
tmp = Math.ceil(100 * info.tracks[i].strh.dwLength / info.tracks[i].strh.dureeS) / 100;
info.text += "Framerate : " + tmp + " FPS\n";
info.text += "Width : " + Math.ceil(info.dwWidth) + "\n";
info.text += "Heidth : " + Math.ceil(info.dwHeight) + "\n";
info.text += "Codec Video more info :\n";
if (info.tracks[i].strh.handler) {
info.text += "handler : " + info.tracks[i].strh.handler + "\n";
}
info.text += "Compressor : " + info.tracks[i].strf.biCompression + "\n";
info.text += "Depth (number of bits / pixel) : " + info.tracks[i].strf.biBitCount + "\n";
}
if (info.tracks[i].strh.Typet == 'auds') {
info.text += "Codec Audio more info :\n";
info.text += "handler : 0x" + info.tracks[i].strf.wFormatTag.toString(16).toUpperCase() + "\n";
info.text += "Compressor : " + info.tracks[i].audiocodec[0] + "\n";
info.text += "Count of channels : " + info.tracks[i].strf.nChannels + "\n";
info.text += "SampleRate : " + info.tracks[i].strf.nSamplesPerSec + "\n";
}
info.text += "\n";
}
return info.text;
}
onmessage = function(event) {
var file = event.data;
if ((file.type == 'video/x-msvideo') || (file.type == 'video/avi') || (file.type == 'video/msvideo')){
avi(file, function(err, info) {
if (err) {
console.log('error : ' + err);
postMessage({
'data' : 'error : ' + err
});
} else {
sortie_texte = human_reading(info);
postMessage({
'data' : sortie_texte
});
//console.log(sortie_texte);
}
});
} else {
postMessage({'data' : 'nop'});
}
}
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