mirror of https://bitbucket.org/ausocean/av.git
50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
/*
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NAME
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filter.go
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AUTHORS
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Ella Pietraroia <ella@ausocean.org>
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LICENSE
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filter.go is Copyright (C) 2019 the Australian Ocean Lab (AusOcean)
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It is free software: you can redistribute it and/or modify them
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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in gpl.txt. If not, see http://www.gnu.org/licenses.
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*/
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// Package filter provides the interface and implementations of the filters to be used
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// on video input that has been lexed.
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package filter
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import (
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"io"
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)
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// Interface for all filters.
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type Filter interface {
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io.WriteCloser
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//NB: Filter interface may evolve with more methods as required.
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}
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// The NoOp filter will perform no operation on the data that is being recieved,
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// it will pass it on to the encoder with no changes.
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type NoOp struct {
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dst io.Writer
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}
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func NewNoOp(dst io.Writer) *NoOp { return &NoOp{dst: dst} }
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func (n *NoOp) Write(p []byte) (int, error) { return n.dst.Write(p) }
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func (n *NoOp) Close() error { return nil }
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