Video Codecs: Difference between revisions
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If you are using H.264 compression, you can calculate a ballpark estimate for your target bitrate using the Kush gauge: | If you are using H.264 compression, you can calculate a ballpark estimate for your target bitrate using the Kush gauge: | ||
Target Bitrate (kbps) = Frame Width (px) * Frame Height (px) * Frame Rate (fps) * Motion Factor * 0.07 / 1000 | 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. | "Motion Factor" is an arbitrary value (generally either 1, 2 or 4) that you can 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. | ||
Example calculation for a typical 720p video: | Example calculation for a typical 720p video: | ||
1280 * 720 * 25 * 2 * 0.07 / 1000 = 3225.6 kbps (= 3.2 Mbps) | 1280 * 720 * 25 * 2 * 0.07 / 1000 = 3225.6 kbps (= 3.2 Mbps) | ||