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Virtual midi devices #254

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Oct 11, 2021
Merged

Virtual midi devices #254

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1 change: 0 additions & 1 deletion nodecg-io-debug/package-lock.json
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59 changes: 36 additions & 23 deletions nodecg-io-midi-input/extension/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import * as easymidi from "easymidi";

interface MidiInputServiceConfig {
device: string;
virtual?: boolean;
}

export type MidiInputServiceClient = easymidi.Input;
Expand All @@ -16,37 +17,49 @@ class MidiService extends ServiceBundle<MidiInputServiceConfig, MidiInputService
async validateConfig(config: MidiInputServiceConfig): Promise<Result<void>> {
const devices: Array<string> = new Array<string>();

easymidi.getInputs().forEach((device) => {
if (device.includes(config.device)) {
devices.push(device);
// Virtual devices can always be created, easymidi will find a
// free name for the matching output
if (!config.virtual) {
easymidi.getInputs().forEach((device) => {
if (device.includes(config.device)) {
devices.push(device);
}
});
if (devices.length === 0) {
return error("No device matched the configured pattern!");
}
if (devices.length > 1) {
return error("The configured pattern is ambiguous!");
}
});

if (devices.length === 0) {
return error("No device matched the configured pattern!");
}
if (devices.length > 1) {
return error("The configured pattern is ambiguous!");
}

return emptySuccess();
}

async createClient(config: MidiInputServiceConfig): Promise<Result<MidiInputServiceClient>> {
this.nodecg.log.info(`Checking device name "${config.device}".`);
let deviceName: string | null = null;
easymidi.getInputs().forEach((device) => {
if (device.includes(config.device) && deviceName === null) {
deviceName = device;
}
});

this.nodecg.log.info(`Connecting to MIDI input device ${deviceName}.`);
if (deviceName !== null) {
const client = new easymidi.Input(deviceName);
this.nodecg.log.info(`Successfully connected to MIDI input device ${deviceName}.`);
if (config.virtual) {
this.nodecg.log.info(`Creating virtual MIDI input device ${config.device}.`);
const client = new easymidi.Input(config.device, true);
this.nodecg.log.info(`Successfully created virtual MIDI input device ${config.device}.`);
return success(client);
} else {
return error("Could not connect to the configured device!");
this.nodecg.log.info(`Checking device name "${config.device}".`);

let deviceName: string | null = null;
easymidi.getInputs().forEach((device) => {
if (device.includes(config.device) && deviceName === null) {
deviceName = device;
}
});

this.nodecg.log.info(`Connecting to MIDI input device ${deviceName}.`);
if (deviceName !== null) {
const client = new easymidi.Input(deviceName);
this.nodecg.log.info(`Successfully connected to MIDI input device ${deviceName}.`);
return success(client);
} else {
return error("Could not connect to the configured device!");
}
}
}

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4 changes: 4 additions & 0 deletions nodecg-io-midi-input/midi-input-schema.json
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,10 @@
"device": {
"type": "string",
"description": "The MIDI device id"
},
"virtual": {
"type": "boolean",
"description": "true to create a virtual device."
}
},
"required": ["device"]
Expand Down
60 changes: 36 additions & 24 deletions nodecg-io-midi-output/extension/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import * as easymidi from "easymidi";

interface MidiOutputServiceConfig {
device: string;
virtual?: boolean;
}

export type MidiOutputServiceClient = easymidi.Output;
Expand All @@ -16,38 +17,49 @@ class MidiService extends ServiceBundle<MidiOutputServiceConfig, MidiOutputServi
async validateConfig(config: MidiOutputServiceConfig): Promise<Result<void>> {
const devices: Array<string> = new Array<string>();

easymidi.getOutputs().forEach((device) => {
if (device.includes(config.device)) {
devices.push(device);
// Virtual devices can always be created, easymidi will find a
// free name for the matching input
if (!config.virtual) {
easymidi.getOutputs().forEach((device) => {
if (device.includes(config.device)) {
devices.push(device);
}
});
if (devices.length === 0) {
return error("No device matched the configured pattern.");
}
if (devices.length > 1) {
return error("The configured pattern is ambiguous.");
}
});

if (devices.length === 0) {
return error("No device matched the configured pattern.");
}
if (devices.length > 1) {
return error("The configured pattern is ambiguous.");
}

return emptySuccess();
}

async createClient(config: MidiOutputServiceConfig): Promise<Result<MidiOutputServiceClient>> {
this.nodecg.log.info(`Checking device name "${config.device}".`);
let deviceName: string | null = null;
easymidi.getOutputs().forEach((device) => {
if (device.includes(config.device) && deviceName === null) {
deviceName = device;
}
});

this.nodecg.log.info(`Connecting to MIDI output device ${deviceName}.`);
if (deviceName !== null) {
const client = new easymidi.Output(deviceName);
this.nodecg.log.info(`Successfully connected to MIDI output device ${deviceName}.`);

if (config.virtual) {
this.nodecg.log.info(`Creating virtual MIDI output device ${config.device}.`);
const client = new easymidi.Output(config.device, true);
this.nodecg.log.info(`Successfully created virtual MIDI output device ${config.device}.`);
return success(client);
} else {
return error("Could not connect to the configured device!");
this.nodecg.log.info(`Checking device name "${config.device}".`);

let deviceName: string | null = null;
easymidi.getOutputs().forEach((device) => {
if (device.includes(config.device) && deviceName === null) {
deviceName = device;
}
});

this.nodecg.log.info(`Connecting to MIDI output device ${deviceName}.`);
if (deviceName !== null) {
const client = new easymidi.Output(deviceName);
this.nodecg.log.info(`Successfully connected to MIDI output device ${deviceName}.`);
return success(client);
} else {
return error("Could not connect to the configured device!");
}
}
}

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4 changes: 4 additions & 0 deletions nodecg-io-midi-output/midi-output-schema.json
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,10 @@
"device": {
"type": "string",
"description": "The MIDI device id"
},
"virtual": {
"type": "boolean",
"description": "true to create a virtual device."
}
},
"required": ["device"]
Expand Down
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