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Images generated using PlantUML had transparent backgrounds which made their text difficult to read on GitHub when using "Dark Mode". Forcing a background color of #F0F0F0 ensures they are all readable.
43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
@startuml
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skinparam BackgroundColor F0F0F0
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== Vol Change - from BT ==
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BT -> EVM: Vol Change request (same key symualtion)
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EVM -> App: Vol Change request process Audio
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== Vol Up/Down - to BT ==
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EVM -> App: process Up/Down key (popup)
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App -> Audio: request Vol Up/Down (finally)
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hnote over Audio
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Software codec applies gain
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endhnote
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EVM <- Audio: Notify sound change
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EVM -> App: show sound change
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== BT device registration - audio ==
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BT -> EVM: Event: BTA2DPOn (connection established)
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EVM -> Audio: Event: BTA2DPOn
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hnote over Audio
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Audio notified about new BT A2DP device
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endhnote
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BT <- Audio: BluetoothStreamRequestMessage (requesting metadata & queue handles)
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BT -> Audio: BluetoothStreamRequestMessageResult (metadata & queue handles)
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hnote over Audio
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BT A2DP setup done,
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ready to playback
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endhnote
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== BT device registration - COM:WIP ==
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BT -> EVM: notify new device
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hnote over EVM
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do whatever whoever wants with COM port
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same as with audio device (open handles...)
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endhnote
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== BT device - close ==
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BT -> EVM: Event: BTA2DPOff
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EVM -> Audio: Event: BTA2DPOff
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EVM <- Audio: Inform that bt audio ended (?)
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EVM -> App: Show bt change (?)
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hnote over BT
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BT closes handles to streams ( i.e. pipes)
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and closes it's device handling
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don't pass callback : pass handle
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endhnote
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@enduml
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