├── .eslintignore ├── .eslintrc.cjs ├── .github └── workflows │ └── tests.yml ├── .gitignore ├── .gitmodules ├── .yarn └── releases │ └── yarn-4.5.3.cjs ├── .yarnrc.yml ├── CONTRIBUTING.md ├── LICENSE ├── README.md ├── logo.png ├── package.json ├── packages ├── builder │ ├── README.md │ ├── extension │ │ ├── background.js │ │ └── manifest.json │ ├── index.html │ ├── package.json │ ├── preview.html │ ├── src │ │ ├── bundler.ts │ │ ├── cli.ts │ │ ├── ffmpeg.ts │ │ ├── frameCapture.ts │ │ ├── index.ts │ │ ├── poolWorker.ts │ │ ├── react │ │ │ ├── previewEntry.tsx │ │ │ └── puppeteerEntry.tsx │ │ ├── renderer.ts │ │ ├── server.ts │ │ ├── splitStream.test.ts │ │ ├── splitStream.ts │ │ ├── util.test.ts │ │ ├── util.ts │ │ └── videoServer.ts │ └── tsconfig.json ├── e2e │ ├── custom.d.ts │ ├── fonts.css │ ├── package.json │ ├── segments.css │ ├── src │ │ ├── segments │ │ │ └── ReactiveVideo.tsx │ │ ├── simple │ │ │ └── ReactiveVideo.tsx │ │ ├── video-simple │ │ │ └── ReactiveVideo.tsx │ │ └── video │ │ │ └── ReactiveVideo.tsx │ ├── style.css │ ├── testManual.ts │ ├── tsconfig.json │ ├── util.ts │ └── video.test.ts ├── examples │ └── package.json └── frontend │ ├── README.md │ ├── package.json │ ├── src │ ├── api.ts │ ├── asyncRegistry.ts │ ├── components │ │ ├── FFmpegVideo.tsx │ │ ├── HTML5Video.tsx │ │ ├── IFrame.tsx │ │ ├── Image.tsx │ │ ├── ImageInternal.tsx │ │ ├── Segment.tsx │ │ └── Video.tsx │ ├── contexts.tsx │ ├── index.ts │ └── types.ts │ └── tsconfig.json ├── tsconfig.json ├── vitest.config.ts └── yarn.lock /.eslintignore: -------------------------------------------------------------------------------- 1 | dist 2 | reactive-video-tmp 3 | packages/examples 4 | /browser 5 | -------------------------------------------------------------------------------- /.eslintrc.cjs: -------------------------------------------------------------------------------- 1 | module.exports = { 2 | extends: ['mifi'], 3 | root: true, 4 | overrides: [ 5 | { 6 | files: [ 7 | './packages/builder/src/react/**/*.{js,mjs,cjs,mjs,jsx,ts,mts,tsx}', 8 | './packages/frontend/src/**/*.{js,mjs,cjs,mjs,jsx,ts,mts,tsx}', 9 | ], 10 | env: { 11 | node: false, 12 | browser: true, 13 | }, 14 | }, 15 | ], 16 | }; 17 | -------------------------------------------------------------------------------- /.github/workflows/tests.yml: -------------------------------------------------------------------------------- 1 | name: Tests 2 | 3 | on: 4 | push: 5 | pull_request: 6 | workflow_dispatch: 7 | schedule: 8 | - cron: '0 10 * * 0' 9 | 10 | env: 11 | CHROME_BUILD_NUMBER: 131.0.6778.85 12 | 13 | jobs: 14 | test: 15 | strategy: 16 | matrix: 17 | # https://github.com/federicocarboni/setup-ffmpeg/issues/21 18 | # TODO linux arm64 when available https://github.com/orgs/community/discussions/19197 19 | # macos-13 is macos x64, macos-latest is macos arm64 (Apple Silicon) 20 | os: [macos-13, macos-latest, ubuntu-latest, windows-latest] 21 | # os: [macos-13] 22 | 23 | runs-on: ${{ matrix.os }} 24 | 25 | steps: 26 | # Windows fix. See https://github.com/actions/checkout/issues/226 27 | - run: git config --global core.autocrlf false 28 | 29 | - uses: actions/checkout@v4 30 | with: 31 | submodules: true 32 | 33 | - name: Get yarn cache directory path 34 | id: yarn-cache-dir-path 35 | run: echo "::set-output name=dir::$(yarn config get cacheFolder)" 36 | 37 | - name: Cache browser 38 | id: cache-browser 39 | uses: actions/cache@v3 40 | with: 41 | path: browser 42 | key: ${{ runner.os }}-browser-${{ env.CHROME_BUILD_NUMBER }} 43 | 44 | # https://github.com/federicocarboni/setup-ffmpeg/issues/21 45 | - if: runner.os != 'macOS' || runner.arch != 'ARM64' 46 | uses: FedericoCarboni/setup-ffmpeg@v3 47 | with: 48 | github-token: ${{ secrets.GITHUB_TOKEN }} 49 | - if: runner.os == 'macOS' && runner.arch == 'ARM64' 50 | run: brew install ffmpeg 51 | 52 | - uses: actions/setup-node@v4 53 | with: 54 | node-version: 22 55 | cache: 'yarn' 56 | 57 | - run: npx @puppeteer/browsers install chrome@${{ env.CHROME_BUILD_NUMBER }} --path ${{ github.workspace }}/browser 58 | 59 | - run: yarn install --immutable 60 | - run: yarn dedupe --check 61 | - run: yarn tsc 62 | 63 | - name: CPU and memory 64 | run: node --experimental-default-type module -e 'import os from "os"; console.log("CPUs:", os.cpus().length, "mem:", (os.freemem()/1e9).toFixed(1), "/", (os.totalmem()/1e9).toFixed(1), "GB");' 65 | 66 | - run: yarn test:e2e 67 | - run: yarn lint 68 | 69 | - uses: actions/upload-artifact@v4 70 | if: failure() 71 | with: 72 | name: artifact 73 | path: | 74 | reactive-video-assets/test-output/ 75 | reactive-video-assets/test-image-snapshots/__diff_output__/ 76 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .yarn/* 2 | !.yarn/patches 3 | !.yarn/releases 4 | !.yarn/plugins 5 | !.yarn/sdks 6 | !.yarn/versions 7 | .pnp.* 8 | 9 | dist 10 | reactive-video-tmp 11 | node_modules 12 | examples2 13 | /browser 14 | 15 | tsconfig.tsbuildinfo -------------------------------------------------------------------------------- /.gitmodules: -------------------------------------------------------------------------------- 1 | [submodule "reactive-video-assets"] 2 | path = reactive-video-assets 3 | url = git@github.com:mifi/reactive-video-assets.git 4 | -------------------------------------------------------------------------------- /.yarnrc.yml: -------------------------------------------------------------------------------- 1 | compressionLevel: mixed 2 | 3 | enableGlobalCache: false 4 | 5 | nodeLinker: node-modules 6 | 7 | yarnPath: .yarn/releases/yarn-4.5.3.cjs 8 | -------------------------------------------------------------------------------- /CONTRIBUTING.md: -------------------------------------------------------------------------------- 1 | # Developer notes 2 | 3 | ## Releasing 4 | 5 | ### `reactive-video` (frontend) 6 | 7 | ```bash 8 | yarn version:frontend patch|minor|major 9 | yarn clean 10 | yarn pack:frontend 11 | 12 | # Now check that the output of `pack:frontend` looks ok, then publish 13 | yarn publish:frontend 14 | ``` 15 | 16 | ### `@reactive-video/builder` 17 | 18 | Note: If you released a new major of `reactive-video` frontend first, run this first (replace `MAJORVERSION` with the major semver of `reactive-video`): 19 | ```bash 20 | (cd packages/builder && yarn add reactive-video@MAJORVERSION && git add package.json && git commit -m 'Upgrade builder reactive-video version') 21 | ``` 22 | 23 | ```bash 24 | yarn version:builder patch|minor|major 25 | yarn clean 26 | yarn pack:builder 27 | 28 | # Now check that the output of `pack:builder` looks ok, then publish: 29 | yarn publish:builder 30 | ``` 31 | 32 | ### After publish 33 | 34 | ```bash 35 | git push --follow-tags 36 | ``` 37 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 |
2 |
3 |
4 |

Reactive Video

5 | 6 |
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10 | 11 | Reactive Videos are videos created using HTML and React components. This allows you to leverage the almost limitless possibilities of the web browser to render dynamic content into a video file. 12 | 13 | ## How does it work? 14 | 15 | Reactive Video fires up one or more Puppeteer/Chromium tabs to render the React component hierarchy and rapidly capture screenshots for each frame when they are done rendering. It starts a HTTP server on `localhost` serving files (videos, images etc) needed to the Puppeteer client (protected by a token.) 16 | 17 | ## Features 18 | 19 | - Edit videos with code! 🤓 20 | - Full power of the web 21 | - Parallel rendering with [multiple Chromium browser instances](https://docs.browserless.io/blog/2018/06/04/puppeteer-best-practices.html#4-parallelize-with-browsers-not-pages) 🔥 Super fast (compared to [editly](https://github.com/mifi/editly)) 22 | - Supports all video formats/codecs that FFmpeg supports 23 | - Headless mode (runs in the cloud) 24 | - Output to any dimensions and aspect ratio, e.g. Instagram post (1:1), Instagram story (9:16), YouTube (16:9), or any other dimensions you like. 25 | - Live preview for easy development 26 | - Open source 27 | 28 | ## Installation 29 | 30 | First install and setup ffmpeg/ffprobe. 31 | 32 | Then we can install the Reactive Video builder globally as a command line tool: 33 | ``` 34 | npm i -g @reactive-video/builder 35 | ``` 36 | 37 | ## Usage 38 | 39 | Now create a file `MyVideo.js` with the content: 40 | 41 | ```js 42 | import React from 'react'; 43 | import { Image, Segment, Video, useVideo } from 'reactive-video'; 44 | 45 | export default () => { 46 | const { currentFrame, currentTime, durationFrames, durationTime } = useVideo(); 47 | 48 | return ( 49 | <> 50 | {/* This segment lasts for 30 frames. Print out the current frame number */} 51 | 52 |
55 | Current frame {currentFrame} 56 |
57 | 58 | 59 | {/* This segment starts from 60 frames. Shows an image with a Ken Burns zoom effect */} 60 | ( 64 | 65 | )} 66 | /> 67 | 68 | {/* This segment starts from 60 frames. Starts 100 frames into the source video (seek to) */} 69 | 70 | 71 | 73 | 74 | 75 | ); 76 | }; 77 | ``` 78 | 79 | ### Download Chrome 80 | 81 | You need to have installed Chrome/Chromium. Each version of Puppeteer is [paired](https://pptr.dev/faq#q-why-doesnt-puppeteer-vxxx-work-with-chromium-vyyy) with a specific version of Chrome for Testing. Currently Chrome buildId 131.0.6778.85 is supported/tested. You can download the correct Chrome build to the directory `browser` (in the current directory): 82 | ```bash 83 | npx @puppeteer/browsers install chrome@131.0.6778.85 --path /absolute/path/to/browser/dir 84 | ``` 85 | 86 | #### Linux ARM64 87 | 88 | Chrome for Testing [doesn't provide builds](https://github.com/GoogleChromeLabs/chrome-for-testing/issues/1) for Linux ARM64. However Playwright has Chromium builds for Linux ARM64, which [can be used](https://github.com/puppeteer/puppeteer/issues/7740#issuecomment-1833202428) with `puppeteer-core`. 89 | 90 | Steps to download Chromium: 91 | 92 | 1. Find the version of `puppeteer-core` used by `reactive-video`. 93 | 1. Find the *Chrome for Testing* version that our `puppeteer-core` version uses [here](https://pptr.dev/supported-browsers) (see also: https://github.com/puppeteer/puppeteer/blob/ddbb43cd09ccf8c4b3087960f8d2b20a385a8ec8/packages/puppeteer-core/src/revisions.ts). 94 | - Find the Playwright `revision` field of `chromium` based on `browserVersion` (Chrome) by going back in git history in [browsers.json](https://github.com/microsoft/playwright/blob/3b16bbd04a5051688979d99178e030d76576df56/packages/playwright-core/browsers.json). 95 | - Then put the `revision` into the URL to download: `wget https://playwright.azureedge.net/builds/chromium/$REVISION/chromium-linux-arm64.zip` 96 | 97 | ### Shell 98 | 99 | Then run the CLI: 100 | ```bash 101 | reactive-video --browser-exe-path /path/to/chrome --duration-frames 90 MyVideo.js 102 | ``` 103 | Duration can also be specified in seconds. See `reactive-video --help` 104 | 105 | ### Live preview 106 | 107 | Or to start a live preview: 108 | 109 | ```bash 110 | reactive-video --browser-exe-path /path/to/chrome --duration-frames 90 MyVideo.js --preview 111 | # or for HTML5 video: 112 | reactive-video --browser-exe-path /path/to/chrome --duration-frames 90 MyVideo.js --preview-html 113 | ``` 114 | 115 | ### Programmatic API 116 | 117 | Or you can use the programmatic Node API. Create a new Node.js project, then add `@reactive-video/builder` (not that reactive-video does not currently strictly follow semver): 118 | 119 | ```bash 120 | mkdir awesome-reactive-video 121 | cd awesome-reactive-video 122 | npm init 123 | npm i --save @reactive-video/builder 124 | ``` 125 | 126 | Create `index.js`: 127 | ```js 128 | import Editor from '@reactive-video/builder'; 129 | import { computeExecutablePath } from '@puppeteer/browsers'; 130 | 131 | // remember to download it first 132 | const browserExePath = computeExecutablePath({ cacheDir: './browser', browser: 'chrome', buildId: '131.0.6778.85' }); 133 | 134 | const editor = Editor({ 135 | ffmpegPath: 'ffmpeg', 136 | ffprobePath: 'ffprobe', 137 | browserExePath, 138 | devMode: true, 139 | }); 140 | 141 | const width = 1280; 142 | const height = 720; 143 | const fps = 25; 144 | const durationFrames = 90; 145 | const reactVideo = 'MyVideo.js'; 146 | const userData = { some: 'value' }; 147 | 148 | // Build the video 149 | await editor.edit({ 150 | reactVideo, 151 | width, 152 | height, 153 | durationFrames, 154 | userData, 155 | 156 | output: 'my-video.mov', 157 | concurrency: 3, 158 | // headless: false, 159 | // extraPuppeteerArgs: ['--no-sandbox', '--disable-setuid-sandbox'] 160 | 161 | // Optionally set rawOutput to false if you want to encode output to h264 (if not it will create MJPEG) 162 | // rawOutput: false, 163 | }); 164 | 165 | // Or start a live preview: 166 | await editor.preview({ 167 | reactVideo, 168 | width, 169 | height, 170 | fps, 171 | durationFrames, 172 | userData, 173 | }); 174 | ``` 175 | 176 | ## Node API 177 | 178 | Reactive Video has two parts: 179 | - `@reactive-video/builder`: CLI and Node.js video builder API 180 | - `reactive-video`: Code that runs in the React world. This package can also be installed in a separate frontend where you want to reuse Reactive Video code to render a video. 181 | 182 | Data can be passed from Node.js to React via `userData`, which will become available in the `useVideo` hook. 183 | 184 | ### `Editor.edit` / `Editor.preview` 185 | 186 | ```js 187 | import Editor from '@reactive-video/builder'; 188 | 189 | const { edit, preview } = Editor({ ffmpegPath, ffprobePath }); 190 | ``` 191 | 192 | See [editor.js edit and preview](packages/builder/index.js) for options. 193 | 194 | ### `Editor.readVideoMetadata` 195 | 196 | Useful to read an input video's parameters and use it for your video, for instance if you want to render something on top of an existing video. Returns `durationTime`. If `countFrames` is `true`, returns also `durationFrames`, which is more accurate, but slower. Example: 197 | 198 | ```js 199 | import { pathToFileURL } from 'url'; 200 | 201 | const inputVideoPath = '/path/to/input-video.mp4'; 202 | 203 | const { edit, readVideoMetadata } = Editor(); 204 | const { width, height, fps, durationTime, durationFrames } = await readVideoMetadata({ path: inputVideoPath, countFrames: true }); 205 | 206 | await edit({ 207 | reactVideo: 'MyVideo.js', 208 | width, 209 | height, 210 | fps, 211 | durationFrames, 212 | userData: { videoUri: pathToFileURL(inputVideoPath) }, 213 | // videoUri becomes file:///path/to/input-video.mp4 214 | }); 215 | ``` 216 | 217 | Then in `MyVideo.js`: 218 | ```js 219 | export default () => { 220 | const { userData: { videoUri } } = useVideo(); 221 | 222 | return