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October 28, 2021 02:41
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| const encoderStates = { | |
| initial: 'streaming', | |
| states: { | |
| streaming: { | |
| on: { | |
| ENCODER_STOPPED: 'paused', | |
| }, | |
| }, | |
| paused: { | |
| on: { | |
| ENCODER_RESUMED: 'streaming', | |
| }, | |
| }, | |
| }, | |
| }; | |
| const browserStates = { | |
| initial: 'processing', | |
| states: { | |
| processing: { | |
| on: { | |
| PROCESSED: 'streaming', | |
| }, | |
| }, | |
| streaming: { | |
| on: { | |
| PAUSE: 'paused', | |
| SWITCH_CAM: { | |
| target: 'streaming', | |
| actions: ['assignSwitchCamera'], | |
| }, | |
| SWITCHED_CAM: { | |
| target: 'streaming', | |
| actions: ['unassignSwitchCamera'], | |
| }, | |
| CAM_COUNT: { | |
| target: 'streaming', | |
| actions: ['assignCamerasCount'] | |
| }, | |
| ERROR: { | |
| target: 'error', | |
| actions: ['assignError'], | |
| }, | |
| }, | |
| }, | |
| paused: { | |
| on: { | |
| GO_LIVE: 'streaming', | |
| }, | |
| }, | |
| error: { | |
| on: { | |
| GO_LIVE: 'streaming', | |
| }, | |
| }, | |
| }, | |
| }; | |
| const livestreamMachine = Machine( | |
| { | |
| id: 'livestream-hierarchical', | |
| type: 'parallel', | |
| context: { | |
| camerasCount: undefined, | |
| currentCamera: undefined, | |
| error: undefined, | |
| }, | |
| states: { | |
| stage: { | |
| initial: 'browserCanStream', | |
| states: { | |
| browserCanStream: { | |
| on: { | |
| GO_LIVE: 'browser', | |
| FROM_ENCODER: 'encoderProcessing', | |
| END: 'completed', | |
| }, | |
| }, | |
| encoderProcessing: { | |
| on: { | |
| PROCESSED: 'encoderCanStream', | |
| FROM_BROWSER: 'browserCanStream', | |
| END: 'completed', | |
| }, | |
| }, | |
| encoderCanStream: { | |
| on: { | |
| ENCODER_STARTED: 'encoder', | |
| FROM_BROWSER: 'browserCanStream', | |
| }, | |
| }, | |
| encoder: { | |
| on: { | |
| ERROR: { | |
| target: 'error', | |
| actions: ['assignError'], | |
| }, | |
| END: 'completed', | |
| }, | |
| ...encoderStates, | |
| }, | |
| browser: { | |
| on: { | |
| END: 'completed', | |
| }, | |
| ...browserStates, | |
| }, | |
| error: { | |
| type: 'final', | |
| }, | |
| completed: { | |
| type: 'final', | |
| }, | |
| }, | |
| }, | |
| type: { | |
| initial: 'test', | |
| states: { | |
| test: { | |
| on: { | |
| EVENT: 'event', | |
| }, | |
| }, | |
| event: { | |
| type: 'final', | |
| }, | |
| }, | |
| }, | |
| }, | |
| }, | |
| { | |
| actions: { | |
| assignError: assign({ | |
| error: (_context, event) => event.error, | |
| }), | |
| assignCamerasCount: assign({ | |
| camerasCount: (_context, event) => event.camerasCount | |
| }), | |
| assignCurrentCamera: assign({ | |
| switchCamera: (_context, _event) => true, | |
| }), | |
| unassignSwitchCamera: assign({ | |
| switchCamera: (_context, _event) => undefined, | |
| }), | |
| }, | |
| }, | |
| ); |
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