User manual

Recoding DVDs and Videos to Nero Digital™
Nero Recode Page 42
9.2.2.2 Encoding Tools
You can define settings for the encoding process under Encoding tools.
The following input options are available:
Baseline profile area
Deblocking
check box
Operates like a soft focus on the sharp edges of the macroblocks. You
can use the slider Deblocking strength to change the intensity of this
effect.
Main profile area
Bidirectional predic-
tion
check box
Enables encoding with the aid of B-VOPs.
Maximum consecu-
tive B-frames
input field
Specifies the maximum number of B-frames that can be used
in a GOP.
This input field is enabled only when the Bidirectional pre-
diction check box in enabled.
CABAC
check box
Enables CABAC (Context Adaptive Binary Arithmetic Cod-
ing). Refers to a process for arithmetically encoding digital
video files as part of encoding standard MPEG-4 AVC or
H264.
Weighted prediction
check box
Allows reference frames to be weighted for motion prediction.
This increases encoding efficiency, particularly in the case of
cross-fading.
Interlaced encoding
check box
Enables original interlaced-encoded material to be saved as
interlaced again.
This setting is possible only when the video title is interlaced.
High profile area
8x8 transform
check box
Changes the standard 4x4 transformation of the encoder to an 8x8
transformation. With high definition resolutions, this allows better
compression.
This setting is a factor of the Nero Digital™ profile selected.
9.2.2.3 Visual Enhancement
The settings under Psychovisual improvement use human perception patterns to achieve
better overall quality.
This means, for example, that the quality is better in the middle of the picture than at the
outer edges because the eyes tend to focus on the middle and do not notice slight blurring at
the edge. Because quality is "saved" at the edge, you can either improve overall quality or
achieve greater compression.
This means that you can achieve greater compression without any appreciable loss of qual-
ity.
The following input options are available:
Psychovisual enhancement area
Focal plane
Takes into account human perception so as to achieve better