mpv.js

All format embeddable player for Electron/NW.js applications.

Powered by marvelous mpv.

Get libmpv

In order to try mpv.js you need to install mpv library first.

* Windows: download mpv-dev, unpack, put corresponding mpv-1.dll to C:\Windows\system32
* macOS: brew install mpv
* Linux: apt-get install libmpv1 libavformat-dev

Example


Simple Electron application yet capable of handling pretty much any available video thanks to mpv. Run:

``bash
git clone https://github.com/Kagami/mpv.js.git && cd mpv.js
npm install


Only on Linux: npm run use-system-ffmpeg


npm run example
`

Usage

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`bash
npm install mpv.js --save
`

Package includes prebuilt binaries for all major platforms so no need to setup compilers.

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`javascript
const path = require("path");
const {app} = require("electron");
const {getPluginEntry} = require("mpv.js");

// Absolute path to the plugin directory.
const pluginDir = path.join(path.dirname(require.resolve("mpv.js")), "build", "Release");
// See pitfalls section for details.
if (process.platform !== "linux") {process.chdir(pluginDir);}
// To support a broader number of systems.
app.commandLine.appendSwitch("ignore-gpu-blacklist");
app.commandLine.appendSwitch("register-pepper-plugins", getPluginEntry(pluginDir));
`

Don't forget to enable plugins feature when creating BrowserWindow:

`javascript
const win = new BrowserWindow({
// ...
webPreferences: {plugins: true},
// ...
});
`

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`javascript
const React = require("react");
const {ReactMPV} = require("mpv.js");

class Player extends React.PureComponent {
constructor(props) {
super(props);
this.mpv = null;
this.state = {pause: true, "time-pos": 0};
}
handleMPVReady(mpv) {
this.mpv = mpv;
this.mpv.observe("pause");
this.mpv.observe("time-pos");
this.mpv.command("loadfile", "/path/to/video.mkv");
}
handlePropertyChange(name, value) {
this.setState({[name]: value});
}
togglePause() {
this.mpv.property("pause", !this.state.pause);
}
render() {
return (
className="player"
onReady={this.handleMPVReady.bind(this)}
onPropertyChange={this.handlePropertyChange.bind(this)}
onMouseDown={this.togglePause.bind(this)}
/>
);
}
}
`

Currently only React component is provided.

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* mpv properties documentation
* mpv commands documentation
* ReactMPV source with JSDoc API comments
* example player source for a more advanced usage

Packaging

Basically all you need to ship is mpvjs.node and mpv library. Make sure they both and also Electron/NW.js distribution have the same bitness!

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You may use lachs0r builds. Copy mpv-1.dll to the directory with mpvjs.node and you are done.

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Homebrew can compile libmpv.1.dylib and all its dependencies. To find dylibs that need to be packaged and fix install names you may use collect-dylib-deps script.

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Two options are normally acceptable:

1. Ask your users to install libmpv1 with package manager or simply depend on it if you build package.
2. Compile static libmpv.so with e.g. mpv-build.

Pitfalls

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This is unfortunate Chromium's pepper_plugin_list.cc restriction. To workaround this relative path might be used.

On Windows and Mac it can be done by changing working directory to the path where mpvjs.node is stored. You can't change CWD of renderer process on Linux inside main process because of zygote architecture so another fix is just cd to the plugin directory in wrapper script.

getPluginEntry helper will give you plugin entry string with that fix applied.

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On Linux plugins loaded with register-pepper-plugins inherit symbols from electron binary so it leads to unfortunate effect: libmpv will use Electron's libraries which is not supported.

To workaround it you need to either replace libffmpeg.so with empty wrapper linked to libav*:

`bash
gcc -Wl,--no-as-needed -shared -lavformat -o /path/to/libffmpeg.so
`

Or use libmpv with statically linked libav*.

Build

To build mpvjs.node by yourself you need to setup dev environment.

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See installation section.

* Windows: Visual Studio 2013 is required

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See download page.

* Windows: unpack nacl_sdk.zip to C:\
* macOS & Linux: add export NACL_SDK_ROOT=/path/to/pepper_49 to ~/.bash_profile

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1. Open C:\nacl_sdk\pepper_49\tools\host_vc.mk and replace 32_host with 64_host
2. Open cmd, run "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" amd64
3. Run cd C:\nacl_sdk\pepper_49\src and make TOOLCHAIN=win

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* Windows: download mpv-dev, unpack to C:\mpv-dev
* macOS: brew install mpv
* Linux: apt-get install libmpv-dev

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* Run node-gyp rebuild in project directory
* Run node-gyp rebuild --arch=ia32` to build 32-bit version of plugin on 64-bit Windows

Applications using mpv.js

* boram

Feel free to PR your own.

License

mpv.js is licensed under CC0 itself. However if you use GPL build of libmpv (e.g. lachs0r builds) your application might violate GPL dynamic linking restrictions. LGPL build should be safe, see mpv copyright for details. (This is not a legal advice.)

Example video is part of Tears of Steel movie (CC) Blender Foundation | mango.blender.org.

Logo is by @SteveJobzniak.