86 lines
4.4 KiB
HTML
86 lines
4.4 KiB
HTML
---
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layout: default
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title: Video Timeline Setup
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---
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<p>
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No configuration is required if you intend to run everything on a single machine, and if you acquired Ardour from <a href="http://www.ardour.org" title="http://www.ardour.org">http://www.ardour.org</a>, everything is pre-configured and included with the download/install.
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</p>
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<h2>Single Machine</h2>
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<p>
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If you compile Ardour from source, or have installed it from a 3rd party repository, additional tools will need to be installed manually.
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</p>
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<p>
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There are three separate standalone tools which are used by Ardour to provide video features.
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</p>
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<ul>
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<li>xjadeo – the video monitor window<a href="http://xjadeo.sf.net" title="http://xjadeo.sf.net" rel="nofollow">http://xjadeo.sf.net</a>
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</li>
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<li>harvid – a video decoder used for the thumbnail timeline <a href="http://x42.github.com/harvid/" title="http://x42.github.com/harvid/" rel="nofollow">http://x42.github.com/harvid/</a>
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</li>
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<li>ffmpeg, ffprobe – used to import/export video, extract soundtracks and query video information <a href="http://ffmpeg.org" title="http://ffmpeg.org" rel="nofollow">http://ffmpeg.org</a>
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</li>
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</ul>
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<p>
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Ardour requires xjadeo ≥ version 0.6.4, harvid ≥ version 0.7.0 and ffmpeg = 1.2.
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</p>
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<p>
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The Ardour development team is <em>in control</em> of the first two applications. ffmpeg can be a bit of a problem.
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To avoid conflicts with distribution packages, Ardour looks for <code>ffmpeg_harvid</code> and <code>ffprobe_harvid</code>.
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</p>
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<p>
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All four applications need to be found in <code>$PATH</code> (e.g. <code>$HOME/bin</code> or <code>/usr/local/bin</code>). For convenience the binary releases of harvid include ffmpeg_harvid and ffprobe_harvid, but if your distribution provides suitable ffmpeg commands you can also just create a symbolic link from ffmpeg → ffmpeg_harvid and ffprobe → ffprobe_harvid.
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</p>
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<p>
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Binary releases are available from ardour.org as well as an installer script: <a href="https://github.com/Ardour/ardour/blob/master/tools/videotimeline/install_video_tools.sh" title="https://github.com/Ardour/ardour/blob/master/tools/videotimeline/install_video_tools.sh" rel="nofollow">install_video_tools.sh</a>.
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</p>
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<p>
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The easiest way to install the video-utilities is by running the following line in a terminal:
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</p>
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<pre class="code">sh -c "$(curl -s -L http://git.io/tVUCkw)"</pre>
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<h2>Studio Setup</h2>
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<p>
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Please read the info in the previous section to familiarize yourself with the tools involved first.
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Setting up a proper A/V post-production studio can be a complicated task. As much as we streamline and simply the <em>single machine</em> setup, the studio-setup is focused on modularity.
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</p>
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<p>
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<em>TODO</em>
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</p>
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<ul>
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<li>Synchronization ardour → video-display-box should be accomplished by external means jack-transport(netjack), MTC, LTC (<abbr title="Open Sound Control - "postmodern MIDI"">OSC</abbr> and/or ssh-pipe work but introduce additional latency + jitter)
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</li>
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</ul>
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<ul>
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<li>Ardour launches <code>XJREMOTE</code> (environment variable, default 'xjremote' which comes with xjadeo).
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</li>
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</ul>
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<ul>
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<li>Either use a custom shell script that ssh'es into the remote box and launches/controls xjadeo there, selects the sync-source and passes though communication between ardour ⇔ xjadeo via ssh (xjadeo is launched stopped with the session).
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</li>
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</ul>
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<ul>
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<li>..or override xjremote's behavior – instead of IPC with a local running xjadeo-process, using <abbr title="Open Sound Control - "postmodern MIDI"">OSC</abbr> for example. xjadeo would run permanently and Ardour will just tell it to load files and set offsets via <acronym title="Open Sound Control - "postmodern MIDI"">OSC</acronym>. see <a href="http://xjadeo.git.sourceforge.net/git/gitweb.cgi?p=xjadeo/xjadeo;a=blob_plain;f=contrib/xjremote-osc" title="http://xjadeo.git.sourceforge.net/git/gitweb.cgi?p=xjadeo/xjadeo;a=blob_plain;f=contrib/xjremote-osc" rel="nofollow">xjremote-osc</a> example script.
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</li>
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</ul>
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<ul>
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<li>If the video server runs remotely, Ardour needs to be configured in Ardour > Preference > Video (hostname of the video-server).
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</li>
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</ul>
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<p>
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Ideally the machines have a common shared folder (NFS or similar). Ardour's import (audio-extract) and export (mux) functionality depends on having access to the video file. Also Ardour's video-import transcodes the file into a suitable proxy-format that allows reliable seeking to any frame…
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</p>
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