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Niagara 4100 User Guide
ViewCast 115
Appendix B: H.264 Advanced Settings
In general, the default values 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. See
Settings for the setting variable.
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
QuantizerMax
51
QuantizerMaxDiffBetweenFrames
4
QuantizerMin
10
QuantizerScaleBlurOverTime
0.5
QuantizerScaleCompress
0.6
ReferenceFrames
2
SceneChangeDetectThreshold
45
TrellisRDQuantization
0