iPad iPhone 轉換影片工具

轉換影片工具介紹
http://www.wretch.cc/blog/mcudesigner/22093043&page=6

http://notes.antonyho.net/2010/11/handbrakeipadmp4.html

轉換工具
http://handbrake.fr/downloads.php



what's 720p
720p is the shorthand name for a category of HDTV video modes having a resolution of 1280×720 (for a total of 0.92 megapixels or 921,600 pixels) and a progressive scan. The number 720 stands for the 720 horizontal scan lines of display resolution (also known as 720 pixels of vertical resolution), while the letter p stands for progressive scan or non-interlaced. When broadcast at 60[note 1] frames per second, 720p features the highest temporal (motion) resolution possible under the ATSC and DVB standards.