If you let the app translate the following line into another language
00:00:04.580 --> 00:00:06.660
then they often spoil it, for example there will be
00:00: 04.580 ->00:00:06.660
So I have to change it to the format
seconds ## seconds
After the translation is done, change it back to hhmmss --> hhmmss
After the file srt (or vtt) is extracted from youtube video
(using downsub.com for example)
let open this html code and parse it inside textarea with id="area1"
Tap the finame of this html to run it. Tap "OK" to change to seconds ## seconds format
Tap this button "COPY" then open Google translator app.
Translate the text to another language.
Proxy script (or proxy program) is a script, wich is located between the user's browser and the "target server". Here I'would like to make a simple demo for PHP-Jquery-script proxy method. So far in my blog I just use YouTube API v.3 and JavaScript-jQuery to find videos. This time I try to use PHP language and jQuery to find videos. We often hear about "Web scraping with PHP," which can be roughly considered to include 9/10 PHP and 1/10 jQuery. Now I want to do it again but with 1/10 PHP and 9/10 jQuery. This page ("php-jquery-proxy.html") is for web scraping using mainly jquery-ajax in combination with only one function from PHP language (get_file_contents function). Using it I can get video ids, video titles from the source code of youtube pages and watch those videos continuously. To use this page you don't need to have Youtube API-3 key but need to download from Internet the XAMPP package...
Creating a video player using HTML5 is not too difficult. But it only plays some video formats such as MP4, OGG, WEBM. To watch more video formats, we must use the HTML5 video player plugin. I tried "Mediaelement.js" and found it great: in addition to the above mentioned formats, it can play YouTube, DaylyMotion, SoundCloud, Facebook, Vimeo, HLS, Dash, FLV and others. In the samples by "Mediaelement.js" I choose only two examples close to satisfy my needs. However in the sample for playlist, the player only plays mp4, mp3, ogg, webm and youtube. Meanwhile, the demo file can play a lot of formats but only play 1 video (when it is clicked) and stops. All the scripts are very short. Most just include only one function with multiple arguments to build the player. Nothing more. So I looked at the source code of the "mediaelement-js.com" page, where all js files are online and have more functions. However, it is very difficult for me...
Note: Please wait a bit for the math formulas to appear.(I use MathJax.js) 1- Problem 1: A spring-mass system on horizontal surface performs damped oscillation due to Coulomb frictional force \[F_{cl}=\mu mg\]. When t = 0 the mass was pulled so that the spring stretches a segment of $x_0=6$ (cm) then it was loosed. It's known that: \[\omega = \sqrt{\frac{k}{m}}= \frac{\pi}{4} = 0.7854 \quad\text{(rad/s)}\] and the length of the way for one direction movement (from left to right or from right to left) decreasing steadily to 0.8 (cm). a- Establish the equation of motion x = x(t) b- Using LaTeX to draw this oscillating graph. 2- Solution: A. Two half periods at the beginning We will use the horizontal x axis in the direction of elongation of the spring. x = 0 is the position of the mass when it is not pulled or compressed. The condition for the mass to stop is: \[\text{velocity }v=0\quad\text{and}\quad\ |x| \le d\quad\text{where }d = \f...
