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== Information ==
=== Codecs ===
To find out what video codecs are and why they are used, please reserve about 45 minutes of your life to watch this video: [https://vimeo.com/104554788]
=== Bitrate ===
When compressing a video, you will be asked to enter a 'bitrate'. This is what determines how much information is stored for every second of video. The more information, the higher the quality of the video. The tradeoff is file size. The more information, the larger the file. So setting a bitrate is striking a balance between limiting the file size without losing too much quality. The smarter the compression format, the easier this is to achieve.
If you are using H.264 compression, you can calculate a ballpark estimate for the target bitrate using the Kush gauge:
Target Bitrate (kbps) = Frame Width (px) * Frame Height (px) * Frame Rate (fps) * Motion Factor * 0.07 / 1000
"Motion Factor" is an arbitrary value (generally either 1, 2 or 4) that you assign to your video based on the amount of (fast) movement in the video. Higher amounts of movement require a higher amount of information to be stored in order to prevent quality loss.
Bitrate can be set to Constant (CBR) or Variable (VBR). A variable bitrate can help decreasing file size when your video has a combination of high and low amounts of movement, as it will optimize the distribution of information storage for those parts in your video. The downside is that your video player has to sometimes suddenly decode a lot more information than the previous frames, resulting in possible lag if your processor unit cannot keep up. For this reason, we advise using a constant bitrate.
== Software support ==
== Software support ==
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