The Basics of Video Transcoding for Portable Devices
Transcoding high-resolution videos in order to be played back on portable devices is media library not as hard as it might sound, you will definitely need special software which will allow you to transcode the video into a playable format that your portable device can handle. You can take several video sources in order to get your material for instance, you may download video straight from a social video sharing site such as YouTube, you may take video straight from your video camera or digital camera or you may even rip particular scenes from a DVD you already own.
When you take a high-quality source the most obvious step to compress the video stream as much as possible in order to make it manageable, that is in terms of video bit rate and file size. If you have dealt with portable devices which are capable of playing back video then you know that they are incapable of showing high-resolution or high-definition material in other words, throwing a 1280 x 720 video scene into your portable device will not provide much benefit because the device itself can’t show more than a 320 x 240 resolution, some portable devices which have been designed specifically to play back video may go higher than that but most portable players will stay at very low resolutions.
Now that we know a little bit about how portable devices handle resolution it is safe to assume that most video files which are encoded with the purpose of being stored in portable players can be encoded using a relatively low bit rate and low resolution without losing much quality at the time of playback. If we were to use the very same compress video source for a high-definition TV we would definitely notice very heavy pixelation because a resolution was not set for HD players.