final case class RepeatChannels(a: GE, num: Int) extends GE.Lazy with Product with Serializable
An auxiliary graph element that repeats the channels of an input signal, allowing for example for an exhaustive element-wise combination with another signal.
Normally, the way multi-channel expansion works is that when two signals are combined, the output signal has a number of channels that is the maximum of the individual number of channels, and channels will be automatically wrapped around.
For example, in x * y if x has three and
y has five channels, the result expands to
Seq[GE]( x.out(0) * y.out(0), x.out(1) * y.out(1), x.out(2) * y.out(2), x.out(0) * y.out(3), x.out(1) * y.out(4) )
Using this element, we can enforce the appearance of all combinations of channels, resulting in a signal whose number of channels is the sum of the individual number of channels.
For example, RepeatChannels(x, 5) expands to
Seq[GE]( x.out(0), x.out(0), x.out(0), x.out(0), x.out(0), x.out(1), x.out(1), x.out(1), x.out(1), x.out(1), x.out(2), x.out(2), x.out(2), x.out(2), x.out(2) )
And RepeatChannels(x, 5) * y accordingly expands to
the fifteen-channels signal
Seq[GE]( (x out 0) * (y out 0), (x out 0) * (y out 1), (x out 0) * (y out 2), (x out 0) * (y out 3), (x out 0) * (y out 4), (x out 1) * (y out 0), (x out 1) * (y out 1), (x out 1) * (y out 2), (x out 1) * (y out 3), (x out 1) * (y out 4), (x out 2) * (y out 0), (x out 2) * (y out 1), (x out 2) * (y out 2), (x out 2) * (y out 3), (x out 2) * (y out 4) )
- a
the signal whose channels to repeat
- num
the number of repetitions for each input channel
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Abstract method which must be implemented by creating the actual
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