HIKVISION UD08391B, Руководство пользователя, Страница: 73 / 139

Network Camera User Manual
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selectable. H.265 is a new encoding technology. Compared with H.264, it reduces
the transmission bitrate under the same resolution, frame rate and image quality.
Note: Selectable video encoding types may vary according to different camera
modes.
H.264+ and H.265+:
•
H.264+: If you set the main stream as the stream type, and H.264 as the video
encoding, you can see H.264+ available. H.264+ is an improved compression
coding technology based on H.264. By enabling H.264+, users can estimate
the HDD consumption by its maximum average bitrate. Compared to H.264,
H.264+ reduces storage by up to 50% with the same maximum bitrate in most
scenes.
•
H.265+: If you set the main stream as the stream type, and H.265 as the video
encoding, you can see H.265+ available. H.265+ is an improved compression
coding technology based on H.265. By enabling H.265+, users can estimate
the HDD consumption by its maximum average bitrate. Compared to H.265,
H.265+ reduces storage by up to 50% with the same maximum bitrate in most
scenes.
You need to reboot the camera if you want to turn on or turn off the
H.264+/H.265+. If you switch from H.264+ to H.265+ directly, and vice versa, a
reboot is not required by the system.
Notes:
•
Upgrade your video player to the latest version if live view or playback does
not work properly due to compatibility.
•
With H.264+/H.265+ enabled, the parameters such as profile, I frame interval,
video quality, and SVC are greyed out if the bitrate type is variable.
•
With H.264+/H.265+ enabled, some functions are not supported. For those
functions, corresponding interfaces will be hidden.
•
H.264+/H.265+ can spontaneously adjust the bitrate distribution according the
requirements of the actual scene in order to realize the set maximum average
bitrate in the long term. The camera needs at least 24 hours to adapt to a fixed