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Elecard Converter Studio 53 User Guide

Chroma format

Selects the chroma format for video encoding:

 Monochrome – video encoding without chroma component.



4:2:0 – chroma format with half horizontal and vertical color

resolutions. The most commonly used and set as delault chroma

format (including the

Blu-ray Disc

format).

 4:2:2 – chroma format allowable only in High Profile 422.

Search range

Specifies the maximum motion vector length when searching for blocks shift

in the previous/next frames. The value 255 is recommended for SD and 511

– for HD.

Use subblock search

Specifies whether to use sub-block (block size less than 16x16) search in

motion estimation or not. The sub-block search extends the accuracy of

motion prediction. Recommended for use.

Number of reference

frames

Sets the number of reference frames that are used by searching blocks shifts.

The recommended value is 3 or 4.

Field order

Specifies the order of fields in the encoded video stream.

Slice count

Specifies the number of independent slices. When this value is set equal to

the number of physical (or virtual) CPUs (on multi-CPU computers), the

encoding process can be slightly accelerated. Auto mode (value equals 0) is

recommended to use.

Deblock mode

Enables deblock postprocessing. It essentially increases visual quality of

encoded video (especially for low bitrates). Two modes are supported:

 Picture – standard deblocking mode.

 Slice – is relevant for encoding video into several slices. In this case

each slice is processed independently. It increases encoding speed. But

quality at the slice boundaries may be decreased.

Alpha offset

Specifies the deblocking strength (how much the defined macroblocks will be

softened).

Beta offset

Specifies the deblocking threshold (the strict selection of blocking by filter).

Video format

Allows writing of the video format information into the stream.

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Elecard Converter Studio Guide de l'utilisateur Page 53

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