Reel.Deal: add link to avs+ documentation

2022-09-17T07:49:18Z

add link to avs+ documentation

Raffriff42: formatting

2016-02-28T10:15:34Z

formatting

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2015-11-08T15:18:30Z

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Admin: 1 revision

2013-05-09T15:02:24Z

1 revision

Wilbert: Reverted edits by Wilbert (Talk) to last version by Vdcrim

2013-03-15T14:27:33Z

Reverted edits by Wilbert (Talk) to last version by Vdcrim

New page

=== SeparateFields ===

{{Template:FuncDef|SeparateFields(clip ''clip'')}}

NTSC and PAL video signals are sequences of fields, but most (if not all) capture cards, capture two fields at a time and interlace (or "weave") them into frames. So frame 0 in the capture file contains fields 0 and 1; frame 1 contains fields 2 and 3; and so on. SeparateFields takes a frame-based clip and splits each frame into its component fields, producing a new half height clip with twice the frame rate and twice the frame count. This is useful if you would like to use Trim and similar filters with single-field accuracy.

SeparateFields uses the field-dominance information in the source clip to decide which of each pair of fields to place first in the output. If it gets it wrong, use [[ComplementParity]], [[AssumeTFF]] or [[AssumeBFF]] before SeparateFields.

From version v2.56 this filter raises an exception if the clip is already field-based. You may want to use [[AssumeFrameBased]] to force separate a second time. Prior versions did a no-op for materials that was already field-based.

See also: [[Weave]].

=== SeparateColumns / SeparateRows ===

{{Template:Func2Def|SeparateColumns(clip, int ''interval'')|SeparateRows(clip, int ''interval'')}}

SeparateColumns separates the columns of each frame into ''interval'' frames. The number of frames of the new clip is ''interval'' times the number of frames of the old clip. The width of the frame must be a multiple of ''interval'', otherwise an error is thrown. SeparateColumns is a relatively slow filter due to the sparse pixel picking required by the algorithm. In some applications it may be faster to use [[TurnLeft]]/[[TurnRight]] with SeparateRows.

SeparateRows separates the rows of each frame into ''interval'' frames. The number of frames of the new clip is ''interval'' times the number of frames of the old clip. The height of the frame must be a multiple of ''interval'', otherwise an error is thrown. SeparateRows like SeparateFields is very fast as it uses zero cost subframing to perform it's magic.

SeparateRows(2) is the same as SeparateFields() except the output is frame-based instead of field-based.

'''Examples:'''

# returns the original clip:
AviSource("c:\file.avi")
SeparateColumns(1)

# returns a clip where the columns are separated:
# frame 0 consists of the columns 0,3,6,... of the original frame 0
# frame 1 consists of the columns 1,4,7,... of the original frame 0
# frame 2 consists of the columns 2,5,8,... of the original frame 0
# frame 3 consists of the columns 0,3,6,... of the original frame 1
# etc ...
AviSource("c:\file.avi")
SeparateColumns(3)

# returns a clip where the rows are separated:
# frame 0 consists of the rows 0,2,4,... of the original frame 0
# frame 1 consists of the rows 1,3,5,... of the original frame 0
# frame 2 consists of the rows 0,2,4,... of the original frame 1
# frame 3 consists of the rows 1,3,5,... of the original frame 1
# etc ...
AviSource("c:\file.avi")
SeparateRows(2)

'''Changes:'''
{| border="1"
|-
| v2.60
| Added SeparateColumns and SeparateRows.
|}

[[Category:Internal filters]]

[[Category:Internal filters]]

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		+	Up-to-date documentation: [https://avisynthplus.readthedocs.io/en/latest/avisynthdoc/corefilters/separatefields.html https://avisynthplus.readthedocs.io]
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SeparateFields - Revision history

Reel.Deal: add link to avs+ documentation

Raffriff42: formatting

Raffriff42: added category

Admin: 1 revision

Wilbert: Reverted edits by Wilbert (Talk) to last version by Vdcrim