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MediaInfoOnline.js

A Javascript API works with MediaInfoLib.

بۇ قوليازمىنى بىۋاسىتە قاچىلاشقا بولمايدۇ. بۇ باشقا قوليازمىلارنىڭ ئىشلىتىشى ئۈچۈن تەمىنلەنگەن ئامبار بولۇپ، ئىشلىتىش ئۈچۈن مېتا كۆرسەتمىسىگە قىستۇرىدىغان كود: // @require https://update.greatest.deepsurf.us/scripts/377671/670848/MediaInfoOnlinejs.js 

  1. // ==UserScript==
  2. // @name         MediaInfoOnline.js
  3. // @namespace    http://tampermonkey.net/
  4. // @version      0.1
  5. // @description  A Javascript API works with MediaInfoLib.
  6. // @author       You
  7. // @match        *
  8. // @require      https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js
  9. // @grant        none
  10. // ==/UserScript==
  11. var $ = window.jQuery;
  12. window.MediaInfoOnline = function(input_resource, textarea_mediainfo, input_mediainfo, span_mediainfo, select_format){
  13.     var MediaInfo_lib_instance;
  14.     var result;
  15.     var key;
  16.     var processing = false;
  17.     var keyToParse = 1024 * 1024;
  18.     var cueIn = function(){
  19.         MediaInfo_lib_instance = MediaInfoLib({
  20.             'locateFile': ()=>'',
  21.             'postRun': function(){
  22.                 initializeAll();
  23.             }
  24.         });
  25.     };
  26.     var fadeInThenFadeOut = function(span_mediainfo, content, time, color){
  27.         span_mediainfo.text(content).css('color', color).fadeIn(function(){
  28.             $(this).delay(time).fadeOut(function(){
  29.                 span_mediainfo.text('');
  30.             });
  31.         });
  32.     }
  33.     var initializeAll = function(){
  34.         $(document).ready(function(){
  35.             var output_formats = JSON.parse(MediaInfo_lib_instance.MediaInfo.Option_Static('Info_OutputFormats_JSON'));
  36.             $.each(output_formats.output, function(e, a){
  37.                 select_format.append(
  38.                     $('<option/>', {
  39.                         value: a.name,
  40.                         mime: a.mime
  41.                     }).text(a.desc)
  42.                 );
  43.             });
  44.             input_resource.prop('disabled', false);
  45.             DOMEventInit();
  46.         });
  47.     };
  48.     var DOMEventInit = function(){
  49.         input_resource.on('change', function(){
  50.             var input_resource_DOM = $(this)[0];
  51.             if(input_resource_DOM.files.length > 0){
  52.                 startParseMediaInfo(input_resource_DOM.files[0]);
  53.             }
  54.         });
  55.         select_format.on('change', function(){
  56.             if(processing){
  57.                 input_mediainfo.prop('disabled', true);
  58.                 input_mediainfo.attr('value', '稍等');
  59.                 regenByType($(this).val(), $(this).find(':selected').attr('mime'));
  60.             }
  61.         });
  62.         input_mediainfo.on('click', function(e){
  63.             e.preventDefault();
  64.             textarea_mediainfo[0].select();
  65.             try{
  66.                 var successful = document.execCommand('copy');
  67.                 var msg = successful?{'text': '成功', 'color': '#2276BB'}:{'text': '失败', 'color': '#DD8944'};
  68.                 fadeInThenFadeOut(span_mediainfo, 'MediaInfo复制' + msg.text, 500, msg.color);
  69.             }
  70.             catch(error){
  71.                 fadeInThenFadeOut(span_mediainfo, '无法复制MediaInfo', 500, '#DD8944');
  72.             }
  73.         })
  74.     }
  75.     var regenByType = function(type, mime){
  76.     	result.Option('Inform', 'JSON');
  77.     	window.MediaInfoOnline.json = JSON.parse(result.Inform().trim());
  78.         result.Option('Inform', type);
  79.         input_mediainfo.attr('value', '复制');
  80.         render(mime);
  81.         input_mediainfo.prop('disabled', false);
  82.     };
  83.     var render = function(mime){
  84.         textarea_mediainfo.text(result.Inform().trim());
  85.     };
  86.     var startParseMediaInfo = function(file){
  87.         if(processing){
  88.             processingDone();
  89.         }
  90.         try{
  91.             parseFile(file);
  92.         }
  93.         catch(error){
  94.             alert('Your browser is not compatible.');
  95.         }
  96.     };
  97.     var processingDone = function(){
  98.         result.Close();
  99.         result.delete;
  100.         processing = false;
  101.         input_mediainfo.prop('disabled', false);
  102.         input_mediainfo.attr('value', '复制');
  103.     };
  104.     var parseFile = function(file){
  105.         if(processing){
  106.             return;
  107.         }
  108.         input_mediainfo.prop('disabled', true);
  109.         input_mediainfo.attr('value', '稍等');
  110.         processing = true;
  111.         key = file.name;
  112.         var offset = 0;
  113.         result = new MediaInfo_lib_instance.MediaInfo;
  114.         result.Option('File_FileName', file.name);
  115.         result.Open_Buffer_Init(file.size, 0);
  116.         var seek = function(length){
  117.             if(processing){
  118.                 var reader = new FileReader;
  119.                 var b = file.slice(offset, offset + length);
  120.                 reader.onload = processChunk;
  121.                 reader.readAsArrayBuffer(b);
  122.             }
  123.             else{
  124.                 processingDone();
  125.             }
  126.         };
  127.         var processChunk = function(event){
  128.             if(event.target.error === null){
  129.                 try{
  130.                     var m = result.Open_Buffer_Continue(event.target.result);
  131.                 }
  132.                 catch(error){
  133.                     processingDone();
  134.                     alert('An error happened reading your file.');
  135.                     return;
  136.                 }
  137.                 var next_position = result.Open_Buffer_Continue_Goto_Get();
  138.                 if(next_position === -1){
  139.                     offset = offset + event.target.result.byteLength;
  140.                 }
  141.                 else{
  142.                     offset = next_position;
  143.                     result.Open_Buffer_Init(file.size, next_position);
  144.                 }
  145.             }
  146.             else{
  147.                 processingDone();
  148.                 alert('An error happened reading your file.');
  149.                 return;
  150.             }
  151.             if(m & 8 || event.target.result.byteLength < 1){
  152.                 result.Open_Buffer_Finalize();
  153.                 regenByType(select_format.val(), select_format.find(':selected').attr('mime'));
  154.                 input_mediainfo.prop('disabled', false);
  155.                 input_mediainfo.attr('value', '复制');
  156.                 return;
  157.             }
  158.             seek(keyToParse);
  159.         };
  160.         seek(keyToParse);
  161.     };
  162.     return {
  163.         init: cueIn
  164.     };
  165. }