AW00097209000 Configuring the Camera
Basler IP Fixed Box Cameras 31
Encoder Type - (continued from previous page)
YUV (RT triggered) = The camera will use the I420 color format for outputting uncompressed
YUV images. The output will be an HTTP stream. Live recording is also supported. This
encoder type is available when using the camera’s real-time trigger feature.
For more information about the real-time trigger feature, see Section 7 on page 97.
Note that the large size of the uncompressed YUV images may have an impact on the camera’s
overall performance.
For more information about the YUV encoder type, see the Lossless YUV Images application
note (AW001261). You can download this document from the Basler website:
www.baslerweb.com
Encoder Mode - Sets the encoder mode for the stream.
CBR = The encoder will operate in Constant Bitrate mode. The encoder attempts to maintain a
constant output bit rate by adjusting image quality as necessary. The bit rate will be determined
by the setting of the Bitrate parameter.
(Setting the Encoder Mode to CBR can help you conserve bandwidth. When CBR is selected,
you can set the Bitrate parameter to a low value and this will cause the camera to use less
bandwidth. This is especially useful if you are operating a system with multiple cameras.)
VBR = The encoder will operate in Variable Bitrate mode. The encoder attempts to maintain
constant image quality by adjusting the output bit rate as necessary. The quality level will be
determined by the setting of the Quality parameter.
Note that if the Encoder Type parameter is set to JPEG (triggered), the Encoder Mode parameter
setting will be fixed at VBR.
CVBR = The encoder will operate in Constant-Variable Bitrate mode. As long as there is no
motion in the scene, the encoder attempts to maintain a constant output bit rate by adjusting
image quality as necessary. The bit rate will be determined by the setting of the Bitrate
parameter.
When the scene includes motion, the camera will increase the output bit rate (up to a maximum
determined by the setting of the Maximum Bitrate parameter) for an extended period of time.
When that time ends, the camera will reduce the bit rate as needed to achieve a long term
average bit rate equal to the setting of the Bitrate parameter.
Note that the CVBR setting will only be available when the Encoder Type parameter is set to
H.264 Base Profile or H.264 High Profile.
Capped VBR = The encoder will operate in Capped Variable Bitrate mode. This is the default
mode when communication with the camera occurs via ONVIF. By setting both the Quality and
Maximum Bitrate parameters, you can ensure that the encoder attempts to maintain the
desired quality without exceeding a certain bitrate at which the performance of the camera
would be negatively affected.
Note that the Capped VBR setting is only valid when the Encoder Type parameter is set to H_264
or JPEG.
Quality - If the Encoder Mode parameter is set to VBR, then the Quality parameter will determine
the quality level of the images in the stream. A higher setting means better quality.
Using higher quality settings will reduce the rate at which the camera can encode and stream
images. Using lower quality settings will increase the rate.
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