Niagara 2120 User Guide

Appendix: Advanced Settings for H.264

In general, the default values (Table 32) for the H.264 encoder will meet your streaming requirements. For devices with restricted bandwidths and under certain conditions such as low bit rates, motion specific, or constant bit rate applications, you may need to adjust the advanced settings. This section includes several examples to assist you in the selection of advanced variables. These examples are suggestions and you should understand and select the appropriate values for your streaming application. Refer to Table 40 for a definition of the setting variable.

Table 32. Default Settings

Setting

Value

 

 

BFramesBias

0

BFramesMax

0

BFramesStrategy

0

BitRateTolerance

1

BlurComplexity

20

ChromaOffset

0

CodecFlags

4196352

CodecFlags2

131328

CoderType

0

DirectMVPrediction

1

GOPSize

250

GOPSizeMin

25

IFrameQuantFactor

0.71

InLoopDeblockingFilterAlpha

0

InLoopDeblockingFilterBeta

0

Level

12

MotionEstimationMethod

7

MotionEstimationRange

16

MotionEstimationSubPelQuality

7

MotionEstimationSubPixelComparison

0

NoiseReduction

0

ViewCast

67

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ViewCast 2120 manual Appendix Advanced Settings for H.264, Default Settings Value