Configuration and Operation
49
Video Resolution
The ioi HD camera supports H.264/MJPEG streaming for resolutions up to 1080p. The default setting
is
1920 x 1080
. Both H.264 and MJPEG streaming support analog BNC video connections.
Following are the supported resolutions:
PAL
NTSC
1920 x 1080 1920 x 1080
1280 x 720
1280 x 720
720 x 576
720 x 480
GOV Settings
You can set the GOV length to determine the frame structure (I-frames and P-frames) in a video
stream for saving bandwidth. The setting range is from
1
to
255
. A longer GOV decreases the
frequency of I-frames. Click
SAVE
to confirm the GOV setting.
H.264 Profile
The H.264 standard defines 21 sets of capabilities. These are referred to as profiles and they target
specific classes of applications. In the security industry, the most common are as follows:
Baseline Profile (BP)
Primarily for low-cost applications that require additional data loss robustness,
Baseline
Profile
is used in some videoconferencing and mobile applications. This is the most common
profile used in IP security cameras due to the low computational cost of processing the video
using this profile.
Main Profile (MP)
This profile provides improved picture quality at reduced bandwidths and storage costs and
is becoming more common as the camera processors (DSPs) become more able to handle
the processing load.
Main Profile
can save 10-30% over
Baseline
. This is the default setting.
High Profile (HP)
High Profile
is the primary profile for HD broadcast and Blu-ray HD disc media applications. It
can save 10-30% of the storage cost over
Main Profile
. However, it may also increase video
latency, depending on the stream structure. ioi HD models default to the
Main Profile
to
provide the best trade-off between storage size and video latency.
Click
SAVE
to confirm the settings.
