1,658
edits
Changes
Jump to navigation
Jump to search
Line 9:
Line 9: − +
→Bitrate
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 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.
"Motion Factor" is an arbitrary value (typically 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)