Dmitry Sergeev
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
package playback
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import "context"
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// AudioFrame contains deinterleaved F32 audio samples.
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//
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// Samples contains one byte slice per channel. Each channel contains
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// SampleCount float32 samples.
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//
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// The sample payload may borrow source-owned memory. AudioSink must finish
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// reading it before ConsumeAudio returns.
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type AudioFrame struct {
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Index uint64
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SampleCount uint64
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Channels uint64
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Label string
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SampleRateNumerator int64
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SampleRateDenominator int64
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Samples [][]byte
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}
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// AudioReader reads batches from one audio feed.
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//
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// ReadAudio must not be called again until the previous frame has been
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// consumed.
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type AudioReader interface {
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ReadAudio(context.Context) (AudioFrame, error)
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Close() error
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}
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// AudioReaderFactory opens a reader for the configured audio feed.
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type AudioReaderFactory interface {
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OpenAudio(context.Context, FeedConfig) (AudioReader, error)
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}
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// AudioSink synchronously consumes one borrowed audio batch.
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//
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// ConsumeAudio must not retain frame.Samples or their underlying byte slices.
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type AudioSink interface {
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ConsumeAudio(context.Context, AudioFrame) error
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}
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