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<h1 class="article-title">mpv launcher</h1>
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<time class="article-timestamp" datetime="2014-12-23T00:51:05-0800">December 23, 2014</time>
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<p><strong><em>04/06/2015 update:</em></strong></p>
<p>I just noticed that <code>daemonize</code> doesn't play too well with the OS; in particular, when you use dark menu bar on OS X Yosemite, apps launched with <code>daemonize</code> won't conform to that. So a native shell solution would be using <code>/bin/zsh</code> and run</p>
<div class="sourceCode"><pre class="sourceCode zsh"><code class="sourceCode zsh">mpv <span class="ot">$@</span> <span class="kw">&></span>/dev/null <span class="kw"><</span>/dev/null <span class="kw">&</span>!</code></pre></div>
<p>instead.</p>
<hr/>
<p><a href="http://mpv.io"><code>mpv</code></a> is a nice simplistic video player (fork of MPlayer and mplayer2). The CLI is flawless (and you can run as many instances as you want), but when it comes to the OS X application bundle, there's one major annoyance. Each app bundle could only have one running instance (unless <code>open -n</code>’ed, which is not how sane people use app bundles), and one instance of <code>mpv</code> only supports one video. So, say I'm playing one video with the app bundle, and unsuspectingly opens another in Finder (which is associated to <code>mpv.app</code> by default), then the latter video immediately takes over, and the position in the first video is lost. That happens <em>a lot</em>.</p>
<p>Today I finally gave this issue some serious thought (I've been on a bug report/enhancement request spree these days so it's natural for me to start thinking about enhancements). Turns out that there's a pretty simple workaround. I created an automator app <code>mpv-launcher.app</code> that does one thing: "Run Shell Script" (pass input as arguments)</p>
<div class="sourceCode"><pre class="sourceCode bash"><code class="sourceCode bash"><span class="ex">daemonize</span> /usr/local/bin/mpv <span class="st">"</span><span class="va">$@</span><span class="st">"</span></code></pre></div>
<p>in the shell of your choice (for me the shell of choice is <code>zsh</code> since the env would be readily available from my <code>zshenv</code>). <code>daemonize</code>, as the name suggests, daemonizes the process so that the process doesn't block; this way, <code>mpv-launcher.app</code> immediately quits after launching, making multiple "instances" possible. (<code>daemonize</code> can be installed via <code>brew install daemonize</code>; note that you need to specify the full path of the command to daemonize, which in my case is <code>/usr/local/bin/mpv</code>). And there you go. Associate your video files to <code>mpv-launcher.app</code>. Launch as many instances as you want. Enjoy.</p>
<p>By the way, I also filed an <a href="https://github.com/mpv-player/mpv/issues/1377">enhancement request</a> with <code>mpv-player/mpv</code>. We'll see what the developers can do. Hopefully the app bundle will support multiple videos out of box in the future.</p>
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