importScripts('FLVInfo_min.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 FLV Infos :\n";
info.text += "-------------------\n";
if (info.parseMetaDataBREAK){
info.text = "MetaDataParsing has been broken :\n";
}
if (info.parseFlagsBREAK){
info.text = "BEWARE : FLV parsing has been broken and factor 2 is supposed\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 += "Version FLV : "+info.FLVVers+"\n";
info.dureeS = (info.lastStampTime - info.firstStampTime) / 1000;
info.text += "Duration : " + duree(info.dureeS) + "\n";
var Gbitrate = 0;
Gbitrate = (info.AudionbB + info.VideonbB) * 8 / info.dureeS; // kbps
info.text += "Global bitrate : " + humanBitrate(Gbitrate) + "\n";
if (info.onMetaData.metadatacreator){
info.text += "Creator : " + info.onMetaData.metadatacreator + "\n";
}
var tot = 0;
if (info.AudionbB > 0) tot += 1;
if (info.VideonbB > 0) tot += 1;
info.text += "Count of streams : " + tot + "\n";
info.text += "\n";
if (info.VideonbB > 0){
info.text += "Video Track Id : " + info.VideoCodecId + "\n";
info.text += "Video Codec : " + info.VideoCodec;
if (info.onMetaData.videocodecid){
if (isNaN(info.onMetaData.videocodecid)){
info.text += " (" + info.onMetaData.videocodecid + ")";
}
}
info.text += "\n";
info.text += "Size = " + humanFileSize(info.VideonbB) + "\n";
info.text += "Bitrate : " + humanBitrate(info.VideonbB * 8 / info.dureeS) + "\n";
if (info.onMetaData.framerate){
info.text += "Framerate : " + (info.onMetaData.framerate * info.factor) + " FPS\n";
} else {
tot = Math.round(info.VideoTagsCount / (info.lastStampTime - info.firstStampTime)) / 1000;
info.text += "Framerate : " + tot + " FPS (*)\n";
}
if (info.onMetaData.width){
info.text += "Width : " + (info.onMetaData.width * info.factor) + "\n";
info.text += "Heidth : " + (info.onMetaData.height * info.factor) + "\n";
}
info.text += "\n";
}
if (info.AudionbB > 0){
info.text += "Audio Track Id : " + info.AudioCodecId + "\n";
info.text += "Audio Codec : " + info.AudioFormat;
if (info.onMetaData.audiocodecid){
if (isNaN(info.onMetaData.audiocodecid)){
info.text += " (" + info.onMetaData.audiocodecid + ")";
}
}
info.text += "\n";
info.text += "Size = " + humanFileSize(info.AudionbB) + "\n";
info.text += "Bitrate : " + humanBitrate(info.AudionbB * 8 / info.dureeS) + "\n";
if (info.AudioFormat == 'AAC'){
info.text += "Profile : " + info.modeAAC + "\n";
info.text += "Count of channels : " + info.AACnbChannels + " (" + info.AACConfigChannels + ")\n";
if (info.onMetaData.audiosamplerate){
info.text += "Sampling : " + (info.factor * info.onMetaData.audiosamplerate / 1000) + " kHz\n";
} else {
info.text += "Sampling : " + (info.AudioSampling) + " kHz (*)\n";
}
} else {
tot = 1;
if (info.AudioMode == "stereo"){
tot =2;
}
info.text += "Count of channels : " + tot + "\n";
info.text += "Mode : " + info.AudioMode + "\n";
info.text += "Sampling : " + (info.AudioSampling) + " kHz\n";
}
}
return info.text;
}
onmessage = function(event) {
var file = event.data;
var speedy = event.data.speedy;
if (file.type == 'video/x-flv'){
flv(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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