Ericsson AVP 4000, Reference Manual, Page: 222 / 422

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Parameter Values Description
Fast Channel Zap Allows the encoding buffer to be controlled to ensure a fix
channel Zap time, whatever the bit rate value is.
Capped VBR Set the mode to Capped VBR where the video bit rate
changes depending on the complexity of the encoded
pictures.
Video Bit Rate The valid bit rate range depends on the selected
video profile.
Defines the bit rate to be used by the compressed video
component. If Bit Rate Tracking Mode is set to Maximize
Video for the Transport Stream that contains the video
component, and the Bit Rate Weighting of the component
is set to other than Fixed or Minimal, this field is read only.
Maximum VBR Range as allowed by the Video profile.
2 Mbps to 15 Mbps In Capped VBR mode, this is the maximum Video Bit rate
that the encoder can possibly output. The video bit rate
out of the encoder can reach this value when the video
material is very complex.
Minimum VBR Range as allowed by the Video profile.
2 Mbps to 15 Mbps In Capped VBR mode, this is the minimum Video Bit rate
that the encoder can possibly output. The video bit rate
out of the encoder can reach this value when the video
material is very easy.
Min. Seamless Bit rate Range as allowed by the Video Profile.
In Seamless mode, this is the minimum Video Bit rate that
the encoder can possibly output.
Lookahead On, Off In Fast Channel Zap mode, this allows lookahead to be
turned off. If turned off, there may be a reduction in picture
quality.
Aspect Ratio 4:3, 16:9, Follow Input Signaling of the picture aspect ratio. This setting does not
affect the video processing. The downstream decoder will
use this setting in the absence of other information (e.g.
WSS in VBI).
GOP Length 4 to 250
Defines the nominal distance in steps of video frames
between two consecutive I frames in the encoded bit-
stream.
GOP Structure IP, IBP, IBBP, IBBBP, IBBBBBBBP, Auto Sets the number of B frames between reference frames.
IBBBBBBBP is only available for 720p video format
Closed GOPs Off, On Enables or disables the usage of Group of Pictures in
which the predicted frames can have their reference from
outside the group.
Scene Cut Detection On, Off
When enabled, minimizes the negative effect the scene
changes have on the bit rate by inserting an I-Frame when
a change is detected. It also affects the GOP length.
Delay Displays the actual video encoding delay. Read only
parameter.
Target Quality Percent, from 30 to 100 In Seamless or Capped VBR modes, this gives an
indication to the encoder on how to trade off the quality of
the picture against bitrate. Higher quality will require a
higher bit rate.
Buffer Delay Milliseconds
In Seamless, Fast Channel Zap and Capped VBR modes,
this sets the delay of the video buffer.
Lookahead Delay Milliseconds In Seamless mode this allows additional delay to be added
to the encoding path to allow for remote Reflex operation.
Stills Detection On, Off In Seamless mode, This allows the detection of a still
picture to be signalled to the MUX in Reflex operation, to
allow a bit rate saving.
Premium Functionality On, Off Displays premium functionality features, when licensed.