Video file format and codec basics.
Because video files can be large, programmes called codecs were developed to make them easier to store and share. Codecs encode data to compress it for storing and sharing. Then they decode that data to decompress it for viewing and editing. The most common codec for video compression is H.264 or AVC.
Audio file formats or file extensions are the containers or wrappers for these codecs. As with lossy audio file formats, most video formats lose data in compression. Which format you choose depends on the balance you want to strike between quality and ease of use.
Understand the top video file extensions.
These are the most common digital video formats and their most frequent uses.
MP4 (MPEG-4 Part 14) is the most common type of video file format. Apple’s preferred format, MP4 can play on most other devices as well. It uses the MPEG-4 encoding algorithm to store video and audio files and text, but it offers lower definition than some others. MP4 works well for videos posted on YouTube, Facebook, Twitter and Instagram.
MOV (QuickTime Film) stores high-quality video, audio and effects, but these files tend to be quite large. Developed for QuickTime Player by Apple, MOV files use MPEG-4 encoding to play in QuickTime for Windows. MOV is supported by Facebook and YouTube and it works well for TV viewing.
WMV (Windows Media Viewer) files offer good video quality and large file size like MOV. Microsoft developed WMV for Windows Media Player. YouTube supports WMV and Apple users can view these videos, but they must download Windows Media Player for Apple. Keep in mind you can’t select your own aspect ratio in WMV.
AVI (Audio Video Interleave) works with nearly every web browser on Windows, Mac and Linux machines. Developed by Microsoft, AVI offers the highest quality but also large file sizes. It is supported by YouTube and works well for TV viewing.
Advanced Video Coding High Definition is specifically for high-definition video. Built for Panasonic and Sony digital camcorders, these files compress for easy storage without losing definition.
FLV, F4V and SWF
Flash video formats FLV, F4V and SWF (Shockwave Flash) are designed for Flash Player, but they’re commonly used to stream video on YouTube. Flash is not supported by iOS devices.
Developed in Russia, Matroska Multimedia Container format is free and open source. It supports nearly every codec, but it is not itself supported by many programmes. MKV is a smart choice if you expect your video to be viewed on a TV or computer using an open-source media player like VLC or Miro.
WEBM or HTML5
These formats are best for videos embedded on your personal or business website. They are small files, so they load quickly and stream easily.
If you want to burn your video to a DVD, MPEG-2 with an H.262 codec is the way to go.
Editing and exporting video files.
Whether you shoot your footage with a DSLR camera, CinemaDNG or other HD video camera, you can work with your native camera format in Adobe Premiere Pro. With lightweight workflows and seamless integration with other Adobe apps, Premiere Pro allows you to create the video you want, even on mobile workstations. Once you’ve made your final cut, you can export to the latest broadcast formats.