LookAheadDownSampling

Description

 

 

The LookAheadDownSampling enumerator is used to control down sampling in look ahead bitrate control mode in AVC encoder.

 

Name/Description

 

 

MFX_LOOKAHEAD_DS_UNKNOWN

Default value, it is up to the SDK encoder what down sampling value to use.

 

 

MFX_LOOKAHEAD_DS_OFF

Do not use down sampling, perform estimation on original size frames. This is the slowest setting that produces the best quality.

 

 

MFX_LOOKAHEAD_DS_2x

Down sample frames two times before estimation.

 

 

MFX_LOOKAHEAD_DS_4x

Down sample frames four times before estimation. This option may significantly degrade quality.

 

Change History

 

This enumerator is available since SDK API 1.8.

 

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