78 lines
2.4 KiB
Julia
78 lines
2.4 KiB
Julia
using Base.Test
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using AudioIO
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test_info = AudioIO.DeviceInfo(44100, 512)
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dev_input = zeros(AudioIO.AudioSample, test_info.buf_size)
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# A TestNode just renders out 1:buf_size each frame
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type TestNode <: AudioIO.AudioNode
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end
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function AudioIO.render(node::TestNode,
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device_input::AudioIO.AudioBuf,
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info::AudioIO.DeviceInfo)
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return AudioIO.AudioSample[1:info.buf_size], true
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end
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#### AudioMixer Tests ####
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# TODO: there should be a setup/teardown mechanism and some way to isolate
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# tests
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info("Testing AudioMixer...")
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mix = AudioMixer()
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render_output, active = AudioIO.render(mix, dev_input, test_info)
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@test mix.mix_inputs == AudioIO.AudioNode[]
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@test render_output == zeros(AudioIO.AudioSample, test_info.buf_size)
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@test active
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testnode = TestNode()
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mix = AudioMixer([testnode])
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render_output, active = AudioIO.render(mix, dev_input, test_info)
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@test mix.mix_inputs == AudioIO.AudioNode[testnode]
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@test render_output == AudioIO.AudioSample[1:test_info.buf_size]
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@test active
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mix = AudioMixer([TestNode(), TestNode()])
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render_output, active = AudioIO.render(mix, dev_input, test_info)
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@test render_output == 2 * AudioIO.AudioSample[1:test_info.buf_size]
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@test active
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stop(mix)
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render_output, active = AudioIO.render(mix, dev_input, test_info)
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@test !active
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info("Testing SinOSC...")
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freq = 440
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t = linspace(1 / test_info.sample_rate,
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test_info.buf_size / test_info.sample_rate,
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test_info.buf_size)
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test_vect = convert(AudioIO.AudioBuf, sin(2pi * t * freq))
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osc = SinOsc(freq)
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render_output, active = AudioIO.render(osc, dev_input, test_info)
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@test_approx_eq(render_output, test_vect)
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@test active
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stop(osc)
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render_output, active = AudioIO.render(osc, dev_input, test_info)
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@test !active
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info("Testing ArrayPlayer...")
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v = rand(AudioIO.AudioSample, 44100)
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player = ArrayPlayer(v)
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render_output, active = AudioIO.render(player, dev_input, test_info)
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@test render_output == v[1:test_info.buf_size]
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@test active
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render_output, active = AudioIO.render(player, dev_input, test_info)
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@test render_output == v[(test_info.buf_size + 1) : (2*test_info.buf_size)]
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@test active
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stop(player)
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render_output, active = AudioIO.render(player, dev_input, test_info)
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@test !active
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# give a vector just a bit larger than 1 buffer size
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v = rand(AudioIO.AudioSample, test_info.buf_size + 1)
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player = ArrayPlayer(v)
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_, active = AudioIO.render(player, dev_input, test_info)
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@test active
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_, active = AudioIO.render(player, dev_input, test_info)
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@test !active
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