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38e9007bf8
Throughout sointu, we assume stereo audiobuffers, but were passing around []float32. This had several issues, including len(buf)/2 and numSamples*2 type of length conversion in many places. Also, it caused one bug in a test case, causing it to succeed when it should have not (the test had +-1 when it should have had +-2). This refactoring makes it impossible to have odd length buffer issues.
25 lines
865 B
Go
25 lines
865 B
Go
package sointu
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// AudioBuffer is a buffer of stereo audio samples of variable length, each
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// sample represented by a slice of [2]float32. [0] is left channel, [1] is
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// right
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type AudioBuffer [][2]float32
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// AudioOutput represents something where we can send audio e.g. audio output.
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// WriteAudio should block if not ready to accept audio e.g. buffer full.
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type AudioOutput interface {
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WriteAudio(buffer AudioBuffer) error
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Close() error
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}
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// AudioContext represents the low-level audio drivers. There should be at most
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// one AudioContext at a time. The interface is implemented at least by
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// oto.OtoContext, but in future we could also mock it.
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//
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// AudioContext is used to create one or more AudioOutputs with Output(); each
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// can be used to output separate sound & closed when done.
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type AudioContext interface {
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Output() AudioOutput
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Close() error
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}
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