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Compression: H.264 vs Zipstream
In this app, you can compare video compressed using standard H.264 with Axis Zipstream technology, a radically more efficient implementation of H.264. You can see how the bit rate varies depending on the Zipstream level set. Use the buttons at the upper left to switch between day and night scenarios, and the buttons to the lower-right to change Zipstream levels. For comparison, the average bitrate for each recordings is presented below:
Average bitrate [kbit/s]
H.264
Zipstream low
Zipstream medium
Zipstream high
Zipstream extreme
Day
1931
1559
1256
1019
1095
Night
5398
1524
1539
896
876
These recordings had dynamic GOP (Group of Pictures) and dynamic FPS (Frames Per Second) enabled. Learn more about these in the web article Reducing the bitrate with Axis Zipstream.