zymon/PortAudio.jl
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adds constant offset ability. No tests!

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This commit is contained in:
Spencer Russell 2014-06-26 16:01:06 -05:00
parent 91aa390554
commit 36c95f1a16
2 changed files with 17 additions and 1 deletions
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16
src/nodes.jl
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@ -130,13 +130,27 @@ type GainRenderer <: AudioRenderer
end
function render(node::GainRenderer, device_input::AudioBuf, info::DeviceInfo)
input = render(node.in_node, device_input, info)
input = render(node.in_node, device_input, info)::AudioBuf
return input .* node.gain
end
typealias Gain AudioNode{GainRenderer}
export Gain
#### Offset ####
type OffsetRenderer <: AudioRenderer
in_node::AudioNode
offset::Float32
end
function render(node::OffsetRenderer, device_input::AudioBuf, info::DeviceInfo)
input = render(node.in_node, device_input, info)::AudioBuf
return input .+ node.offset
end
typealias Offset AudioNode{OffsetRenderer}
export Offset
#### Array Player ####

2
src/operators.jl
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@ -11,3 +11,5 @@
+(in1::NullNode, in2::NullNode) = in1
+(in1::AudioNode, in2::NullNode) = in1
+(in1::NullNode, in2::AudioNode) = in2
+(in1::AudioNode, in2::Real) = Offset(in1, in2)
+(in1::Real, in2::AudioNode) = Offset(in1, in2)