diff --git a/README.md b/README.md index 674d75e..f1224a5 100644 --- a/README.md +++ b/README.md @@ -4,51 +4,31 @@ vMix has a robust API, but one key limitation of the API is that while you can tell vMix to take a snapshot of an input, it will save the image on the vMix machine but not send the image over the network. -This is a small application running on the nodejs framework to act as a proxy -for those images. +The Snapshot Proxy is a small application written in the Go language to automatically generate +those images and provide them over the network to other applications. The application is especially helpful in providing preview images of each input for [Unofficial vMix Remote Control for Android](https://play.google.com/store/apps/details?id=org.jeffmikels.vmix_remote) [Unofficial vMix Remote Control for iOS](https://apps.apple.com/us/app/unofficial-vmix-remote-control/id1551404035) -## Installation for Advanced Users +## Installation: -These commands should be run on the same computer that is running vMix. +- Download the latest zip file from the [Releases Page](https://github.com/jeffmikels/vmix-snapshot-proxy/releases) +- Unzip the file. +- Put the `.exe` and the `.bat` files both in the same directory wherever you want (NOTE: they must be on the SAME computer that's running vMix). +- Start vMix. +- Double-click on the `.bat` file. +- If you have problems, look at the `.bat` file for the available command line options: + - `-h` will print the help + - `-p` will allow you to specify the Web API port vMix is using + - `-d` will allow you to specify the directory where vMix stores snapshot images -```bash -$ git clone https://github.com/jeffmikels/vmix-snapshot-proxy.git -$ cd vmix-snapshot-proxy -$ npm install -``` +## Advanced Usage: -## Usage +When running, the proxy will open a web server at port `8098` and will expose the following HTTP endpoints: -Edit the settings at the top of `index.js`. - -Start vMix and then the proxy server... - -``` -$ node index.js -``` - -You'll see something like the following output - -``` -===================================== -Running vMix Snapshot Proxy at port 8098 -Get a list of all inputs: http://192.168.1.1:8098/ -Force regen one input (0 means program): http://192.168.1.1:8098/regen/# -Force regen all inputs: http://192.168.1.1:8098/regen -Get input snapshot: http://192.168.1.1:8098/#.jpg - -Getting an input snapshot sends the most recent snapshot, and queues the generation of a new one. -Snapshots take about 1 second to process -===================================== -``` - -Open a browser and visit: - -`http://[PROXY_IP_ADDRESS]:8098/[INPUT_NUMBER].jpg` - -Every time you visit that address, you will receive a new snapshot image of the selected input. +- `http://[IP_ADDRESS]:8098/` will return a list of all the discovered vMix inputs +- `http://[IP_ADDRESS]:8098/regen` will trigger a global regeneration of all input snapshots +- `http://[IP_ADDRESS]:8098/regen/[INPUT_NUMBER]` will trigger a regeneration of one input's snapshot +- `http://[IP_ADDRESS]:8098/[INPUT_NUMBER].jpg` will serve the input snapshot as a jpg image. diff --git a/build-win.sh b/build-win.sh deleted file mode 100755 index d43634e..0000000 --- a/build-win.sh +++ /dev/null @@ -1,25 +0,0 @@ -#!/bin/bash - -# this process assembles the electron app manually -# assuming the binary has already been downloaded into the release directory - -TARGET=release/vmix-snapshot-proxy/resources/app -if [[ ! -d $TARGET ]]; then mkdir "$TARGET"; fi -rm -rf $TARGET/* -mkdir "$TARGET/lib" - -install() { - cp "$1" "$TARGET/$1" -} - -install package.json -install main.js -install preload.js -install renderer.js -install index.html -install lib/vue.js - -# install node_modules -pushd "$TARGET" -npm i --production -popd diff --git a/go-version/build.sh b/go-version/build.sh index b20f035..98b881f 100755 --- a/go-version/build.sh +++ b/go-version/build.sh @@ -1,3 +1,6 @@ #!/bin/bash +go mod tidy env GOOS=windows GOARCH=amd64 go build -o vmix-snapshot-proxy.exe + +zip -u vmix-snapshot-proxy.zip vmix-snapshot-proxy.exe vmix-snapshot-proxy.bat diff --git a/go-version/vmix-snapshot-proxy.exe b/go-version/vmix-snapshot-proxy.exe index e4e1f21..bcc184b 100755 Binary files a/go-version/vmix-snapshot-proxy.exe and b/go-version/vmix-snapshot-proxy.exe differ diff --git a/go-version/vmix-snapshot-proxy.go b/go-version/vmix-snapshot-proxy.go index 0d30f17..2a3442e 100644 --- a/go-version/vmix-snapshot-proxy.go +++ b/go-version/vmix-snapshot-proxy.go @@ -52,7 +52,7 @@ type Inputs struct { Inputs []Input `xml:"input"` } -//Input{name: "Camera 1", number: 1} +// Input{name: "Camera 1", number: 1} type Input struct { XMLName xml.Name `xml:"input"` Name string `xml:"title,attr"` @@ -196,6 +196,8 @@ func main() { } }() + PrintStatus() + // start the server app.Listen(fmt.Sprintf("%s:%d", myIp, proxyPort)) diff --git a/go-version/vmix-snapshot-proxy.zip b/go-version/vmix-snapshot-proxy.zip index 66a4086..fc91f0c 100644 Binary files a/go-version/vmix-snapshot-proxy.zip and b/go-version/vmix-snapshot-proxy.zip differ diff --git a/index.html b/index.html deleted file mode 100644 index b60841e..0000000 --- a/index.html +++ /dev/null @@ -1,53 +0,0 @@ - - - - - - - - - - vMix Snapshot Proxy - - -
-
{{status}}
-

vMix Snapshot Proxy

- -

Instructions:

-
- -
- -

Server Settings:

-
-
- - -
- 

{{msg}}

-
- -

Debug:

-
- 

{{output}}

-
- -

Inputs:

-

loading inputs...

-
-
- -
 
-
{{input.number}}. {{input.text}}
-
-
-
- - - - diff --git a/index.js b/index.js deleted file mode 100644 index a9267ed..0000000 --- a/index.js +++ /dev/null @@ -1,145 +0,0 @@ - -// EDIT THESE SETTINGS IF YOU NEED TO ================= - -const vMixStorage = 'C:/Users/AV/Documents/vMixStorage/' // should agree with settings in vMix -const vmixUrl = 'http://localhost:8088/api'; // only change this if proxy is on a different computer - -// DO NOT EDIT BELOW THIS LINE ======================== - - -// REQUIRED MODULES -const ifaces = require('os').networkInterfaces() -const parser = require( 'fast-xml-parser' ); -const got = require( 'got' ); -const express = require( 'express' ); -const nocache = require( 'nocache' ); -const print = console.log; - -// GLOBALS -let myip = 'THIS_COMPUTER_IP'; -iface_loop: -for (let key of Object.keys(ifaces)) { - for (let device of ifaces[key]) { - if (device.family == 'IPv4' && !device.internal) { - myip = device.address; - break iface_loop; - } - } -} - -let inputs = []; - -// If you intend to use this with the Unofficial vMix Remote App: -// https://play.google.com/store/apps/details?id=org.jeffmikels.vmix_remote -// the port must be set to 8098 -const proxyRunsOnPort = 8098 // which port does the proxy listen on - - -// FUNCTIONS -function sleep( ms ) { - return new Promise( resolve => setTimeout( resolve, ms ) ); -} - -function status() { - print( '=====================================' ) - print( 'Running vMix Snapshot Proxy at port 8098' ) - print( `Get a list of all inputs: http://${myip}:${proxyRunsOnPort}/` ) - print( `Force regen one input (0 means program): http://${myip}:${proxyRunsOnPort}/regen/#` ) - print( `Force regen all inputs: http://${myip}:${proxyRunsOnPort}/regen` ) - print( `Get input snapshot: http://${myip}:${proxyRunsOnPort}/#.jpg` ) - print( `` ) - print( `Getting an input snapshot sends the most recent snapshot, and queues the generation of a new one.` ) - print( `Snapshots take about 1 second to process` ) - print( '=====================================' ) -} - -async function get_inputs() { - let url = vmixUrl + '?XML' - print( url ) - const response = await got( url ) - const xmlData = response.body; - if ( parser.validate( xmlData ) === true ) { - let jsonObj = parser.parse( xmlData ); - inputs = jsonObj.vmix.inputs.input; - } -} - -// vmix inputs are 1-indexed -async function request_snapshots( inputNumber = -1 ) { - if ( inputNumber == -1 ) { - for ( let i = 1; i <= inputs.length; i++ ) request_snapshots( i ); - } else { - let url; - if ( inputNumber == 0 ) { url = vmixUrl + `?Function=Snapshot&Value=0.jpg` } - else { - let input = inputs[ inputNumber - 1 ]; - url = vmixUrl + `?Function=SnapshotInput&Input=${inputNumber}&Value=${inputNumber}.jpg` - } - print( url ) - const response = await got( url ); - print( response.body ) - } -} - - -function main() { - // connect to vmix - get_inputs(); - - // express setup - const app = express(); - app.set( 'etag', false ) - app.use( nocache() ); - - app.get( '/', async ( req, res ) => { - await get_inputs(); - res.json( inputs ) - } ); - - app.get( '/regen', async ( req, res ) => { - await request_snapshots(); - res.json( 'snapshots are regenerating' ) - } ); - - app.get( '/regen/:input', async ( req, res ) => { - await request_snapshots( req.params.input ); - res.json( 'snapshot ' + req.params.input + ' is regenerating' ) - } ); - - // express handles middleware in the order it is added - // handle input image requests - app.use( async ( req, res, next ) => { - // always generate a new image every time - print( req.path ); - let match = req.path.match( /(\d+)\.jpg/ ); - if ( match ) { - let input = match[ 1 ]; - request_snapshots( input ); - } - // send it on to the static middleware - next(); - } ); - app.use( express.static( vMixStorage ) ); - app.use( async ( req, res, next ) => { - // file was not found, so wait a little bit - await sleep( 1000 ); - - // and try again - next(); - } ); - app.use( express.static( vMixStorage ) 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// only change this if proxy is on a different computer - -// If you intend to use this with the Unofficial vMix Remote App: -// https://play.google.com/store/apps/details?id=org.jeffmikels.vmix_remote -// the port must be set to 8098 -const proxyRunsOnPort = 8098 // which port does the proxy listen on - - -// DO NOT EDIT BELOW THIS LINE ======================== -const { app, BrowserWindow, ipcMain, nativeTheme } = require( 'electron' ) - - -// REQUIRED MODULES -const { WebSocketServer, WebSocket } = require( 'ws' ); -const wss = new WebSocketServer( { noServer: true } ); -wss.broadcast = function ( message, data ) { - wss.clients.forEach( function each( client ) { - if ( client.readyState === WebSocket.OPEN ) { - client.send( JSON.stringify( { message, data } ) ); - } - } ); -} - -const ifaces = require( 'os' ).networkInterfaces() -const parser = require( 'fast-xml-parser' ); -const path = require( 'path' ); -const express = require( 'express' ); -const nocache = require( 'nocache' ); -const axios = require( 'axios' ); -const print = console.log; - -// GLOBALS -let vMixStorage = vMixDefaultStorage; -let vMixUrl = vMixDefaultUrl; -let myip = 'THIS_COMPUTER_IP'; -let ips = []; -let myUrl = ''; -for ( let key of Object.keys( ifaces ) ) { - for ( let device of ifaces[ key ] ) { - if ( device.family == 'IPv4' && !device.internal ) { - ips.push( device.address ); - } - } -} -if ( ips.length > 0 ) myip = ips[ 0 ]; -myUrl = `http://${myip}:${proxyRunsOnPort}` - -// keep track of the vmix inputs -let inputs = []; -let nextInput = 0; - -// FUNCTIONS -function sleep( ms ) { - return new Promise( resolve => setTimeout( resolve, ms ) ); -} - -function status() { - let s = ` -===================================== -Running vMix Snapshot Proxy at port 8098' ) -Subscribe by websocket: ws://${myip}:${proxyRunsOnPort} -Get a list of all inputs: ${myUrl}/inputs -Force regen one input (0 means program): ${myUrl}/regen/# -Force regen all inputs: ${myUrl}/regen -Get input snapshot: ${myUrl}/#.jpg - -Getting an input snapshot sends only the most recent snapshot. -Snapshots take about 1 second to process. -=====================================` - return s; -} - -function inputUrl( inputNumber ) { - return `${myUrl}/${inputNumber}.jpg?t=` + Date.now(); -} - -async function get_inputs() { - let url = vMixUrl + '?XML' - let response - try { - response = await axios.get( url ) - } catch ( e ) { - print( e ); - return; - } - const xmlData = response.data; - if ( parser.validate( xmlData ) === true ) { - let jsonObj = parser.parse( xmlData ); - let count = 0; - for ( let input of jsonObj.vmix.inputs.input ) { - count++ - if ( typeof ( input ) === 'string' ) { - input = { text: input } - } - // correct text items from xml - if ( '#text' in input ) input.text = input[ '#text' ]; - input.number = count; - input.url = inputUrl( count ); - inputs.push( input ); - } - } - wss.broadcast( 'inputs', inputs ); -} - -// vmix inputs are 1-indexed -// inputNumber defaults to -1 which will update all snapshots -// when inputNumber is 0, the snapshot will be taken from the output/program feed -async function request_snapshots( inputNumber = -1 ) { - if ( inputNumber == -1 ) { - for ( let i = 1; i <= inputs.length; i++ ) request_snapshots( i ); - } else { - let url; - if ( inputNumber == 0 ) { url = vMixUrl + `?Function=Snapshot&Value=0.jpg` } - else { - inputs[ inputNumber - 1 ].url = inputUrl( inputNumber ); - url = vMixUrl + `?Function=SnapshotInput&Input=${inputNumber}&Value=${inputNumber}.jpg` - // send the api command - axios.get( url ).catch( e => console.log( e.status + ': ' + url ) ); - - // set a timeout to see if this snapshot exists - // if it does, update the inputs, and send a websocket message about this input - // use axios.head - setTimeout( async () => { - try { - let input = inputs[ inputNumber - 1 ]; - let r = await axios.head( input.url ); - wss.broadcast( 'input_update', input ); - // console.dir( r ); - } catch ( e ) { - // console.log( e ); - } - }, 1000 ) - } - } -} - -async function loop() { - if ( inputs.length == 0 ) { - await get_inputs(); - } else { - nextInput = ( nextInput + 1 ) % inputs.length; - print( `LOOP: Next Input to Regenerate: ${nextInput}` ); - if ( nextInput == 0 ) await get_inputs(); - else await request_snapshots( nextInput ); - } - setTimeout( loop, 1000 ); -} - -function main() { - let clients = [] - - // express setup - const server = express(); - server.set( 'etag', false ) - server.use( nocache() ); - - server.get( '/inputs', async ( req, res ) => { - await get_inputs(); - res.json( inputs ) - } ); - - server.get( '/regen', async ( req, res ) => { - await request_snapshots(); - res.json( 'snapshots are regenerating' ) - } ); - - server.get( '/regen/:input', async ( req, res ) => { - await request_snapshots( req.params.input ); - res.json( 'snapshot ' + req.params.input + ' is regenerating' ) - } ); - - // express handles middleware in the order it is added - // handle input image requests - // server.use( async ( req, res, next ) => { - // // always generate a new image every time - // print( req.path ); - // let match = req.path.match( /(\d+)\.jpg/ ); - // if ( match ) { - // let input = match[ 1 ]; - // request_snapshots( input ); - // } - // // send it on to the static middleware - // next(); - // } ); - - // we have to do it this way, because the vMixStorage Directory - // might change at runtime, and this allows it to. - server.use( ( req, res, next ) => { - // print( 'Serving static files from: ' + vMixStorage ); - let handler = express.static( vMixStorage ); - handler( req, res, next ); - } ); - - // server.use( async ( req, res, next ) => { - // // file was not found, so wait a little bit - // await sleep( 1000 ); - - // // and try again - // next(); - // } ); - // server.use( express.static( vMixDefaultStorage ) ); - - // app.use( '/:input', async ( req, res, next ) => { - // await request_snapshots( req.params.input ); - // print( req ); - // req.path = req.params.input + '.jpg'; - // next( req, res ); - // }, express.static( vMixStorage ) ); - - wss.on( 'connection', ( ws ) => { - ws.sender = ( message, data ) => ws.send( JSON.stringify( { message, data } ) ); - ws.on( 'message', ( event ) => { - let { message, data } = JSON.parse( event ); - console.log( 'received message: %s', message ); - // let {message, data} = JSON.parse(data); - switch ( message ) { - case 'subscribe': - if ( clients.indexOf( ws ) == -1 ) clients.push( ws ); - ws.sender( 'subscribed', { vMixStorage, status: status() } ); - break; - case 'inputs': - ws.sender( 'inputs', inputs ); - break; - case 'update_storage_directory': - vMixStorage = data; - default: - console.log( 'message not recognized' ); - console.log( message ); - } - } ); - ws.sender( 'connected' ); - } ); - const realServer = server.listen( proxyRunsOnPort ) - realServer.on( 'upgrade', function upgrade( request, socket, head ) { - wss.handleUpgrade( request, socket, head, ( ws ) => { - wss.emit( 'connection', ws, request ); - } ); - } ); - - print( status() ) - setInterval( () => print( status() ), 1000 * 60 * 5 ); - loop(); - - // Launch Electron - const createWindow = () => { - const win = new BrowserWindow( { - width: 800, - height: 600, - webPreferences: { - preload: path.join( __dirname, 'preload.js' ) - } - } ) - - nativeTheme.themeSource = 'dark' - win.loadFile( 'index.html' ) - - ipcMain.handle( 'dark-mode:toggle', () => { - if ( nativeTheme.shouldUseDarkColors ) { - nativeTheme.themeSource = 'light' - } else { - nativeTheme.themeSource = 'dark' - } - return nativeTheme.shouldUseDarkColors - } ) - - ipcMain.handle( 'dark-mode:system', () => { - nativeTheme.themeSource = 'system' - } ) - - } - - app.whenReady().then( () => { - createWindow() - } ) - - // quit when all the windows are closed - app.on( 'window-all-closed', () => { - // if ( process.platform === 'darwin' ) app.quit() - app.quit() - } ) - - // reopen a window if the process activates when no windows are open - app.on( 'activate', () => { - if ( BrowserWindow.getAllWindows().length === 0 ) createWindow() - } ) -} - -main(); diff --git a/package.json b/package.json deleted file mode 100644 index fad2e37..0000000 --- a/package.json +++ /dev/null @@ -1,27 +0,0 @@ -{ - "name": "vmix-snapshot-proxy", - "productName": "vMix Snapshot Proxy", - "version": "1.0.0", - "description": "", - "main": "main.js", - "scripts": { - "test": "echo \"Error: no test specified\" && exit 1", - "start": "electron .", - "bundle": "rm -rf dist && rollup -c", - "build-win": "electron-packager . --platform=win32 --arch=x64", - "build-mac": "electron-packager . --platform=darwin --arch=x64" - }, - "author": "", - "license": "ISC", - "dependencies": { - "express": "^4.17.1", - "fast-xml-parser": "^3.17.6", - "got": "^11.8.3", - "nocache": "^2.1.0", - "ws": "^8.3.0" - }, - "devDependencies": { - "electron": "^16.0.4", - "rollup": "^2.60.2" - } -} diff --git a/preload.js b/preload.js deleted file mode 100644 index 651ccc7..0000000 --- a/preload.js +++ /dev/null @@ -1,6 +0,0 @@ -const { contextBridge, ipcRenderer } = require('electron') - -contextBridge.exposeInMainWorld('darkMode', { - toggle: () => ipcRenderer.invoke('dark-mode:toggle'), - system: () => ipcRenderer.invoke('dark-mode:system') -}) \ No newline at end of file diff --git a/release/vmix-snapshot-proxy.zip b/release/vmix-snapshot-proxy.zip deleted file mode 100644 index 0924dfd..0000000 Binary files a/release/vmix-snapshot-proxy.zip and /dev/null differ diff --git a/renderer.js b/renderer.js deleted file mode 100644 index 7af24b4..0000000 --- a/renderer.js +++ /dev/null @@ -1,60 +0,0 @@ -let url = 'ws://localhost:8098' -let ws = null; - -let app = new Vue( { - el: '#app', - data: { - storage_dir: '', - loading: false, - status: 'connecting', - output: '', - msg: '', - inputs: [], - show_instructions: true, - show_status: true, - show_debug: true, - show_inputs: true, - }, - methods: { - handleMsg( msg ) { - console.log( msg ) - let { message, data } = JSON.parse( msg ); - switch ( message ) { - case 'subscribed': - this.storage_dir = data.vMixStorage - this.msg = data.status - ws.sender( 'inputs' ) - this.status = 'connected' - this.loading = true - break; - case 'inputs': - this.status = 'connected' - this.inputs = data; - this.loading = false - break; - case 'input_update': - let input = data; - for ( let i = 0; i < this.inputs.length; i++ ) { - if ( this.inputs[ i ].number == input.number ) { - this.inputs[ i ] = input; - this.output = `Input #${input.number} updated.` - break; - } - } - case 'output': - // this.output += JSON.stringify( data ) + '\n' - break; - } - }, - updateStorageDir() { - ws.sender( 'update_storage_directory', this.storage_dir ) - }, - }, - mounted() { - this.loading = true; - ws = new WebSocket( url ); - ws.sender = function ( message, data ) { ws.send( JSON.stringify( { message, data } ) ) } - ws.onopen = function () { ws.sender( 'subscribe' ); } - ws.onmessage = ( event ) => this.handleMsg( event.data ) - } -} ) diff --git a/style.css b/style.css deleted file mode 100644 index 325e2a1..0000000 --- a/style.css +++ /dev/null @@ -1,60 +0,0 @@ -body { - font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif; - background: #333; - color: white; -} -* { - box-sizing: border-box; -} - -#inputs { - text-align: center; - width: 100%; -} - -.input { - display: inline-block; - box-sizing: border-box; - vertical-align: top; - width: 24%; - padding: 0.5%; -} - -.input .preview { - background-color: black; - aspect-ratio: 16/9; - width: 100%; -} - -.input .caption { - font-size: 10px; -} - -#status { - position: absolute; - top: 10px; - right: 10px; -} -#status.connected { - color: green; -} -#status.connecting { - color: yellow; -} -#status.disconnected { - color: red; -} - -@media (prefers-color-scheme: dark) { - body { - background: #333; - color: white; - } -} - -@media (prefers-color-scheme: light) { - body { - background: #ddd; - color: black; - } -} diff --git a/watcher.js b/watcher.js deleted file mode 100644 index ef82bae..0000000 --- a/watcher.js +++ /dev/null @@ -1,22 +0,0 @@ -const main = 'index.js' - -var process = require( 'process' ); -var cp = require( 'child_process' ); -var fs = require( 'fs' ); - -var server = cp.fork( main ); -console.log( 'Server started' ); - -fs.watchFile( main, function ( event, filename ) { - console.log( `${main} file changed on disk... reloading` ); - server.kill(); - console.log( 'Server stopped' ); - server = cp.fork( main ); - console.log( 'Server started' ); -} ); - -process.on( 'SIGINT', function () { - server.kill(); - fs.unwatchFile( main ); - process.exit(); -} ); \ No newline at end of file