Smart Video Enlarger is a Chrome extension that gives you the best video watching experience by effectively scaling the videos. If you use this extension, then there’s no need to double-click the video to toggle full-screen mode. Simply scroll upward and downward direction to set the best suitable size of video player. Basically there’s very less scaling modes available with YouTube videos to upscale and downscale the size of videos. So Smart Video Enlarger push that limitation.
http://rcm.amazon.com/e/cm?t=widgetsamazon-20&o=1&p=8&l=bpl&asins=B000GB0FYO&fc1=000000&IS2=1<1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifrThe mouse wheel plays the main role here. Simply use it to set the size of YouTube video, by rolling it in upward and downward direction. Once, you have installed this extension, an icon will be added next to the address bar. Open a YouTube video and check for intelligent mouse scrolling. YouTube video will be played in fullscreen by default. But if you roll down mouse wheel, the size to view description and comments will be reduced.
You can configure Intelli-Mouse scrolling settings. For instance, you can set t minimum size of video when mouse wheel is being rolled down. Click its icon to configure video scaling according to your wish. First you need to adjust the ratio for video scaling in order to set the maximum height of video when opened. Then set the minimum video height by scrolling down to the bottom of the window. Once you’re OK with the settings, verify the maximum & minimum video size while scrolling up and down the page.