GBO Technology S1080 Series, User Manual

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S1080 User’s Manual
U/M-2013-1000
Revision B
August 22, 2013 Company Proprietary Page 43 of 87
9.1.1 IP Ratio
Enter the IP Ratio that needs to be set for the codec; the default value is 30. This means that once
every 30 frames, one I frame is inserted. The value range is between 1 and 30.
9.1.2 Force I Frame
By clicking on this checkbox, the indicated stream (Stream 1, in this example) is enabled to insert an
I frame at that instant. Once an I frame is inserted, this flag has no significance. In the GUI, this shows
as checked (if selected), to show the user the last setting.
9.1.3 QP Value
The Quantization Parameter (QP) Value options described in the table below are supported.
Table 9-1 QP Value Options
QP Value Options
Init
Value with which Codec starts encoding the Macro Blocks. When Rate Control is in OFF position, this
value is used to encode all the frames.
Min Minimum Value of QP with which Codec encodes the Macro Blocks.
Max Maximum Value of QP with which Codec encodes the Macro Blocks
9.1.4 Encode Preset
The Encode Preset options described in the table below are supported.
Table 9-2 Encode Preset Options
Encode Preset Options
Auto
This automatically sets the value based on the Codec combo used for the best tradeoff between
performance and quality.
Custom
This enables a custom preset based on the Codec used:

For H264, this enables a legacy version Codec

For MPEG4, this switches all the tools and puts the Codec to maximum quality. Tools enabled
are intra Algo, UMV, Skip MB and ME is put to High Quality mode.
9.1.5 Packet Size
The percentage value entered splits the frame into slices, and the packet header is introduced at row
level slice boundaries. Please refer to
Codec Datasheet supplied with the software release.