+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE book [
+<!ENTITY % sgml.features "IGNORE">
+<!ENTITY % xml.features "INCLUDE">
+<!ENTITY % dbcent PUBLIC "-//OASIS//ENTITIES DocBook Character Entities V4.5//EN"
+ "/usr/share/xml/docbook/schema/dtd/4.5/dbcentx.mod">
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+<!ENTITY % extensions SYSTEM "extensions.ent">
+%extensions;
+]>
+<book xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en">
+
+<bookinfo>
+<title>DCP-o-matic</title>
+<author><firstname>Carl</firstname><surname>Hetherington</surname></author>
+</bookinfo>
+
+<chapter xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en">
+<title>Introduction</title>
+
+<para>
+Hello, and welcome to DCP-o-matic!
+</para>
+
+<section>
+<title>What is DCP-o-matic?</title>
+
+<para>
+DCP-o-matic is a program to generate <ulink
+url="http://en.wikipedia.org/wiki/Digital_Cinema_Package">Digital
+Cinema Packages</ulink> (DCPs) from DVDs, Blu-Rays, video files such as MP4
+and AVI, or still images. The resulting DCPs will play on modern digital
+cinema projectors.
+</para>
+
+<para>
+You might find it useful to make DVDs easier to present, to encode
+independently-shot feature films, or to generate local advertising for
+your cinema.
+</para>
+
+</section>
+
+<section>
+<title>Licence</title>
+
+<para>
+DCP-o-matic is licensed under the <ulink url="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html">GNU GPL</ulink>.
+</para>
+
+</section>
+
+</chapter>
+
+<chapter xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en">
+<title>Installation</title>
+
+<section>
+<title>Windows</title>
+
+<para>
+To install DCP-o-matic on Windows, simply download the installer from
+<ulink url="http://carlh.net/software/dcpomatic">http://carlh.net</ulink>
+and double-click it. Click through the installer wizard, and
+DCP-o-matic will be installed onto your machine.
+</para>
+
+<para>
+If you are using a 32-bit version of Windows, you will need the 32-bit
+installer. For 64-bit Windows, either installer will work, but I
+suggest you used the 64-bit version as it will allow DCP-o-matic to
+use more memory. You may find that DCP-o-matic crashes if you run
+many parallel encoding threads (more than 4) on the 32-bit
+version.
+</para>
+
+</section>
+
+<section>
+<title>Ubuntu Linux</title>
+
+<para>
+You can install DCP-o-matic on Ubuntu 12.04 (‘Precise
+Pangolin’) or 12.10 (‘Quantal Quetzal’) using
+<code>.deb</code> packages: download the appropriate package from
+<ulink
+url="http://carlh.net/software/dcpomatic">http://carlh.net</ulink> and
+double-click it. Ubuntu will install the necessary bits and pieces
+and set DCP-o-matic up for you.
+</para>
+
+</section>
+
+<section>
+<title>Other Linux distributions</title>
+
+<para>
+Installation on non-Ubuntu Linux is currently a little involved, as
+there are no packages available (yet); you will have to compile it
+from source. If you are using a non-Ubuntu distribution, do let me
+know via the <ulink url="mailto:dcpomatic@carlh.net">mailing
+list</ulink> and I will see about building some packages.
+</para>
+
+<para>
+The following dependencies are required:
+<itemizedlist>
+<listitem><ulink url="http://ffmpeg.org/">FFmpeg</ulink></listitem>
+<listitem><ulink url="http://www.mega-nerd.com/libsndfile/">libsndfile</ulink></listitem>
+<listitem><ulink url="http://www.openssl.org/">OpenSSL</ulink></listitem>
+<listitem><ulink url="http://www.openjpeg.org/">libopenjpeg</ulink></listitem>
+<listitem><ulink url="http://www.imagemagick.org/script/index.php">ImageMagick</ulink></listitem>
+<listitem><ulink url="http://www.boost.org/">Boost</ulink></listitem>
+<listitem><ulink url="http://www.libssh.org/">libssh</ulink></listitem>
+<listitem><ulink url="http://www.gtk.org/">GTK</ulink></listitem>
+<listitem><ulink url="http://www.wxwidgets.org/">wxWidgets</ulink></listitem>
+<listitem><ulink url="http://carlh.net/software/libdcp/">libdcp</ulink></listitem>
+</itemizedlist>
+</para>
+
+<para>
+Once you have installed the development packages for the dependencies,
+download the source code from <ulink
+url="http://carlh.net/software/dcpomatic">http://carlh.net</ulink>,
+unpack it and run the following commands from inside the source
+directory:
+</para>
+
+<programlisting>
+./waf configure
+./waf build
+sudo ./waf install
+</programlisting>
+
+<para>
+With any luck, this will build and install DCP-o-matic on your system. To run it, enter:
+</para>
+
+<programlisting>
+dcpomatic
+</programlisting>
+
+<para>
+in a shell.
+</para>
+
+</section>
+</chapter>
+
+<chapter xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en">
+<title>Creating a video DCP</title>
+
+<para>
+In this chapter we will see how to create a video DCP using
+DCP-o-matic. We will gloss over some of the finer details, which are
+explained in later chapters.
+</para>
+
+<section>
+<title>Creating a new film</title>
+
+<para>
+Let's make a very simple DCP to see how DCP-o-matic works. First, we
+need some content. Download the low-resolution trailer for the open
+movie <ulink url="http://sintel.org/">Sintel</ulink> from <ulink
+url="http://ftp.nluug.nl/ftp/graphics/blender/apricot/trailer/Sintel_Trailer1.480p.DivX_Plus_HD.mkv">their
+website</ulink>. Generally, of course, one would want to use the
+highest-resolution material available, but for this test we will use
+the low-resolution version to save everyone's bandwidth bills.
+</para>
+
+<para>
+Now, start DCP-o-matic and its window will open. First, we will
+create a new ‘film’. A ‘film’ is how DCP-o-matic refers to
+a piece of content, along with some settings, which we will make into
+a DCP. DCP-o-matic stores its data in a folder on your disk while it
+creates the DCP. You can create a new film by selecting
+<guilabel>New</guilabel> from the <guilabel>File</guilabel> menu, as
+shown in <xref linkend="fig-file-new"/>.
+</para>
+
+<figure id="fig-file-new">
+ <title>Creating a new film</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/file-new&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+This will open a dialogue box for the new film, as shown in <xref
+linkend="fig-video-new-film"/>.
+</para>
+
+<figure id="fig-video-new-film">
+ <title>Dialogue box for creating a new film</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/video-new-film&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+In this dialogue box you can choose a name for the film. This will be
+used to name the folder to store its data in, and also as the initial
+name for the DCP itself. You can also choose whereabouts you want to create
+the film. In the example from the figure, DCP-o-matic will create a
+folder called ‘DCP Test’ inside my home folder (carl) into which it
+will write its working files.
+</para>
+
+<para>
+If you always create your DCPs in a particular folder, you can use
+DCP-o-matic's <guilabel>Preferences</guilabel> to make life a little
+easier by setting the default folder that DCP-o-matic will offer in this dialogue.
+See <xref linkend="ch-preferences"/>.
+</para>
+
+</section>
+
+<section>
+<title>Selecting content</title>
+
+<para>
+The next step is to set the content that you want to use. Click the
+content selector, as shown in <xref
+linkend="fig-click-content-selector"/>, and a file chooser will
+open for you to select the content file to use, as shown in <xref
+linkend="fig-video-select-content-file"/>.
+</para>
+
+<figure id="fig-click-content-selector">
+ <title>Opening the content selector</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/click-content-selector&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<figure id="fig-video-select-content-file">
+ <title>Selecting a video content file</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/video-select-content-file&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+Select your content file and click <guilabel>Open</guilabel>. In this
+case we are using the Sintel trailer that we downloaded earlier.
+</para>
+
+<para>
+When you do this, DCP-o-matic will take a look at your file. After a
+short while (when the progress bar at the bottom right of the window
+has finished), you can look through your content using the slider to
+the right of the window, as shown in <xref linkend="fig-examine-thumbs"/>.
+</para>
+
+<figure id="fig-examine-thumbs">
+ <title>Examining the content</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/examine-thumbs&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+Dragging the slider will move through your video. You can also click
+the <guilabel>Play</guilabel> button to play the content back. Note
+that there will be no sound, and playback might not be entirely
+accurate (it may be slightly slower or faster than it should be, for
+example). This player is really only intended for brief inspection of
+content; if you need to check it more thoroughly, use another player
+such as <ulink url="http://projects.gnome.org/totem/index.html">Totem</ulink>, <ulink url="http://www.mplayerhq.hu/design7/news.html">mplayer</ulink> or <ulink url="http://www.videolan.org/vlc/index.html">VLC</ulink>.
+</para>
+
+</section>
+
+<section>
+<title>Setting up</title>
+
+<para>
+Now there are a few things to set up to describe how the DCP should be
+created. The settings are divided into four tabs: film, video, audio and subtitles.
+</para>
+
+<section>
+<title>Film tab</title>
+
+<para>
+The ‘film’ tab contains settings that pertain to the whole film, as shown in <xref linkend="fig-film-tab"/>.
+</para>
+
+<figure id="fig-film-tab">
+ <title>Film settings tab</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/film-tab&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+The first thing here is the name. This is generally set to the title
+of the film that is being encoded. If <guilabel>Use DCI
+name</guilabel> is not ticked, the name that you specify will be used
+as-is for the name of the DCP. If <guilabel>Use DCI name</guilabel>
+is ticked, the name that you enter will be used as part of a
+DCI-compliant name.
+</para>
+
+<para>
+Underneath the name field is a preview of the name that the DCP will
+get. To use a DCI-compliant name, tick the <guilabel>Use DCI
+name</guilabel> checkbox. The DCI name will be composed using details
+of your content's soundtrack, the current date and other things that
+can be specified in the DCI name details dialogue box, which you can
+open by clicking on the <guilabel>Details</guilabel> button.
+</para>
+
+<para>
+If the DCP name is long, it may not all be visible. You can see the
+full name by hovering the mouse pointer over the partial name.
+</para>
+
+<para>
+The <guilabel>Trust content's header</guilabel> button starts off
+checked, and this means that DCP-o-matic will use the content's header
+information to determine its length. If, for some reason, this header
+length is wrong, uncheck the <guilabel>Trust content's
+header</guilabel> button and DCP-o-matic will run through the content
+to find its exact length. This may take a while for large pieces of content.
+</para>
+
+<para>
+Next up is the content type. This can be
+‘feature’, ‘trailer’ or whatever; select the
+required type from the drop-down list.
+</para>
+
+<para>
+The <guilabel>trim frames</guilabel> settings allow you to trim frames
+from the beginning and end of the content; any trimmed frames will not
+be included in the DCP.
+</para>
+
+</section>
+
+<section>
+<title>Video tab</title>
+
+<para>
+This tab contains settings related to the picture in your DCP, as shown in <xref linkend="fig-video-tab"/>.
+</para>
+
+<figure id="fig-video-tab">
+ <title>Video settings tab</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/video-tab&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+The first option on this tab is the format. This will govern the
+shape that DCP-o-matic will make your image into. Select the aspect
+ratio that your content should be presented in. The ‘4:3 within
+Flat’ and ‘16:9 within Flat’ settings will put the
+image at the specified ratio within a Flat (1.85:1) frame, so that you
+can project the DCP using your projector's Flat preset.
+</para>
+
+<para>
+The remaining options can often be left alone, but may sometimes be
+useful. The ‘crop’ settings can be used to crop your
+content, which can be used to remove black borders from round the
+edges of DVD images, for example. The specified number of pixels will
+be trimmed from each edge, and the content image in the right of the
+window will be updated to show the effect of the crop.
+</para>
+
+<para>
+The ‘filters’ settings allow you to apply various video
+filters to the image. These may be useful to try to improve
+poor-quality sources like DVDs. We will discuss filtering later in the manual.
+<!-- XXX: link -->
+</para>
+
+<para>
+The ‘scaler’ is the method that will be used to scale up
+your content to the required size for the DCP, if required. We will
+discuss the options in more detail later; Bicubic is a fine choice in
+most situations.
+<!-- XXX: link -->
+</para>
+
+<para>
+The ‘colour look-up table’ specifies the colour space that
+your input content will be expected to be in. If in doubt, leave it
+set to ‘sRGB’.
+</para>
+
+<para>
+Finally, the ‘JPEG2000 bandwidth’ setting changes how big the final
+image files used within the DCP will be. Larger numbers will give
+better quality, but correspondingly larger DCPs. The bandwidth can be
+between 50 and 250 megabits per second (MBps).
+</para>
+
+</section>
+
+<section>
+<title>Audio tab</title>
+
+<para>
+This tab contains settings related to the sound in your DCP, as shown in <xref linkend="fig-audio-tab"/>.
+</para>
+
+<figure id="fig-audio-tab">
+ <title>Audio settings tab</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/audio-tab&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+
+<para>
+‘Audio Gain’ is used to alter the volume of the
+soundtrack. The specified gain (in dB) will be applied to each sound
+channel before it is written to the DCP.
+</para>
+
+<para>
+If you use a sound processor that DCP-o-matic knows about, it can help
+you calculate changes in gain that you should apply. Say, for
+example, that you make a test DCP and find that you have to run it at
+volume 5 instead of volume 7 to get a good sound level in the screen.
+If this is the case, click the <guilabel>Calculate...</guilabel>
+button next to the audio gain entry, and the dialogue box in <xref
+linkend="fig-calculate-audio-gain"/> will open.
+</para>
+
+<figure id="fig-calculate-audio-gain">
+ <title>Calculating audio gain</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/calculate-audio-gain&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+For our example, put 5 in the first box and 7 in the second and click
+<guilabel>OK</guilabel>. DCP-o-matic will calculate the audio gain
+that it should apply to make this happen. Then you can re-make the
+DCP (this will be reasonably fast, as the video data will already have
+been done) and it should play back at the correct volume with 7 on
+your sound-rack fader.
+</para>
+
+<para>
+Current versions of DCP-o-matic only know about the Dolby CP750. If
+you use a different sound processor, and know the gain curve of its
+volume control, <ulink url="mailto:cth@carlh.net">get in
+touch</ulink>.
+</para>
+
+<para>
+‘Audio Delay’ is used to adjust the synchronisation
+between audio and video. A positive delay will move the audio later
+with respect to the video, and a negative delay will move it earlier.
+</para>
+
+<para>
+By default the <guilabel>Use content‘s audio</guilabel> button
+will be selected. This means that the DCP will use one of the
+soundtracks from your content file; you can select the soundtrack that
+you wish to use from the drop-down box.
+</para>
+
+<para>
+Note that if your content's audio is mono, DCP-o-matic will place it
+in the centre channel in the DCP.
+</para>
+
+<para>
+Alternatively, you can supply different sound files by clicking the
+<guilabel>Use external audio</guilabel> button and choosing a WAV file
+for any channels that you want to appear in the DCP. These files can
+be any bit depth and sampling rate, and will be re-sampled and
+bit-depth converted if required.
+</para>
+
+</section>
+<section>
+<title>Subtitles tab</title>
+
+<para>
+This tab contains settings related to subtitles in your DCP, as shown in <xref linkend="fig-subtitles-tab"/>.
+</para>
+
+<figure id="fig-subtitles-tab">
+ <title>Subtitle settings tab</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/subtitles-tab&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+DCP-o-matic will extract subtitles from the content, if present, and
+they can be ‘burnt into’ the DCP (that is, they are
+included in the image and not overlaid by the projector). Note that
+DVD and Blu-Ray subtitles are stored as bitmaps, so it is not possible
+(automatically) to use non-burnt-in subtitles with these sources.
+Select the <guilabel>With Subtitles</guilabel> checkbox to enable
+subtitles. The <guilabel>offset</guilabel> control moves the
+subtitles up and down the image, and the <guilabel>scale</guilabel>
+control changes their size.
+</para>
+
+<para>
+Future versions of DCP-o-matic will hopefully include the option to
+use text subtitles (as is the norm with most professionally-mastered
+DCPs).
+</para>
+
+</section>
+</section>
+
+<section>
+<title>Making the DCP</title>
+
+<para>
+Now that we have set everything up, choose <guilabel>Make
+DCP</guilabel> from the <guilabel>Jobs</guilabel> menu. DCP-o-matic
+will encode your DCP. This may take some time (many hours in some
+cases). While the job is in progress, DCP-o-matic will update you on
+how it is getting on with the progress bar in the bottom of its window, as shown in <xref linkend="fig-making-dcp"/>.
+</para>
+
+<figure id="fig-making-dcp">
+ <title>Making the DCP</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/making-dcp&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+When it has finished, the DCP will end up on your disk inside the
+film's directory. You can then copy this to a projector via a USB
+stick, hard-drive or network connection.
+</para>
+
+<para>
+Alternatively, if you have a projector or TMS that is accessible via
+SCP across your network, you can upload the content directly from
+DCP-o-matic. See <xref linkend="sec-tms-upload"/>.
+</para>
+
+</section>
+</chapter>
+
+
+<chapter xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en">
+<title>Creating a still-image DCP</title>
+
+<para>
+DCP-o-matic can also be used to create DCPs of a still image, perhaps
+for an advertisement or an on-screen announcement. This chapter shows you
+how to do it.
+</para>
+
+<para>
+As with video DCPs, the first step is to create a new
+‘Film’; select <guilabel>New</guilabel> from the
+<guilabel>File</guilabel> menu and the new film dialogue will open as
+shown in <xref linkend="fig-still-new-film"/>.
+</para>
+
+<figure id="fig-still-new-film">
+ <title>Dialogue box for creating a new film</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/still-new-film&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+Enter a name and click <guilabel>OK</guilabel>. Then we set up the
+content; click the content selector as before, and this time we will
+choose an image file, as shown in <xref
+linkend="fig-still-select-content-file"/>.
+</para>
+
+<figure id="fig-still-select-content-file">
+ <title>Selecting a still content file</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/still-select-content-file&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+Setting up for a still image DCP is somewhat simpler than for a video;
+the tabs are all the same, but many options are removed and a few are added.
+</para>
+
+<para>
+As with video, you can select a content type and the format (ratio)
+that your image should be presented in. It will be scaled and padded
+to fit the selected ratio, but in such a way that the pixel aspect
+ratio is preserved. In other words, the image will not be stretched,
+merely scaled; if you want to stretch your image, you will need to do
+so in a separate program before importing it into DCP-o-matic. You
+can also crop your image, if you so choose, and then set a duration
+(in seconds) that the image should appear on screen.
+</para>
+
+<para>
+Still-image DCPs can include sound; this can be added from the
+<guilabel>Audio</guilabel> tab. If your specified duration is shorter
+than the audio, the audio will be cut off at the duration; if it is
+longer, silence will be added after your audio.
+</para>
+
+<para>
+Finally, as with video, you can choose <guilabel>Make DCP</guilabel>
+from the <guilabel>Jobs</guilabel> menu to create your DCP. This will
+be much quicker than creating a video DCP, as DCP-o-matic only needs
+to encode a single frame which it can then repeat.
+</para>
+
+</chapter>
+
+
+<chapter xml:id="ch-preferences" xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en">
+<title>Preferences</title>
+
+<para>
+DCP-o-matic provides a few preferences which can be used to modify its
+behaviour. This chapter explains those options.
+</para>
+
+<section>
+<title>The preferences dialogue</title>
+
+<para>
+The preferences dialogue is opened by choosing
+<guilabel>Preferences...</guilabel> from the <guilabel>Edit</guilabel>
+menu. The dialogue is shown in <xref linkend="fig-prefs"/>.
+</para>
+
+<figure id="fig-prefs">
+ <title>Preferences</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/prefs&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<section>
+<title>TMS setup</title>
+
+<para>
+The first part of the dialogue gives some options for specifying
+details about your TMS. If you do this, and your TMS accepts SSH
+connections, you can upload DCPs directly from DCP-o-matic to the TMS.
+This is discussed in <xref linkend="sec-tms-upload"/>.
+</para>
+
+<para>
+<guilabel>TMS IP address</guilabel> should be set to the IP address of
+your TMS, <guilabel>TMS target path</guilabel> to the place that DCPs
+should be uploaded to (which will be relative to the home directory of
+the SSH user). Finally, the user name and password are the
+credentials required to log into the TMS via SSH.
+</para>
+</section>
+
+<section>
+<title>Threads</title>
+
+<para>
+When DCP-o-matic is encoding DCPs it can use multiple parallel threads
+to speed things up. Set this value to the number of threads
+DCP-o-matic should use. This would typically be set to the number of
+processors (or processor cores) in your machine.
+</para>
+
+</section>
+
+<section>
+<title>Default directory for new films</title>
+
+<para>
+This is the directory which DCP-o-matic will suggest initially as a place to put new films.
+</para>
+
+</section>
+
+<section>
+<title>A/B options</title>
+
+<para>
+These options are for DCP-o-matic's special mode of making A/B
+comparison DCPs for checking the performance of video filters. Their
+use is described in <xref linkend="sec-ab"/>.
+</para>
+
+</section>
+
+<section>
+<title>Encoding servers</title>
+
+<para>
+If you have spare machines sitting around on your network not doing
+much, they can be pressed into service to speed up DCP encodes. This
+is done by running a small server program on the machine, which will
+encode video sent to it by the ‘master’ DCP-o-matic. This
+option is described in more detail in <xref linkend="sec-servers"/>.
+Use these preferences to specify the encoding servers that should be
+used.
+</para>
+
+</section>
+
+</section>
+</chapter>
+
+<chapter xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en">
+<title>Advanced topics</title>
+
+<para>This chapter describes some parts of DCP-o-matic that are
+probably not essential, but which you might find useful in some
+circumstances.
+</para>
+
+<section>
+<title>Filtering</title>
+
+<para>
+DCP-o-matic offers a variety of filters that can be applied to your
+video content. You can set up the filters by clicking the
+<guilabel>Edit</guilabel> button next to the filters entry in the
+setup area of the DCP-o-matic window; this opens the filters selector
+as shown in <xref linkend="fig-filters"/>.
+</para>
+
+<figure id="fig-filters">
+ <title>Filters selector</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="screenshots/filters&scs;"/>
+ </imageobject>
+ </mediaobject>
+</figure>
+
+<para>
+After changing the filters setup, you will need to regenerate the DCP
+to see the effect on the cinema screen. The preview in DCP-o-matic
+will update itself whenever filters are changed, though of course this
+image is much smaller and of lower resolution than a projected image!
+</para>
+
+</section>
+
+<section>
+<title>Scaling</title>
+
+<para>
+If your source material is not of the DCI-specified size, or if it
+uses non-square pixels, DCP-o-matic will need to scale it. The
+algorithm used to scale is set up by the <guilabel>Scaler</guilabel>
+entry in the film setup area. We think ‘Bicubic’ is the
+best all-round option, but tests are ongoing.
+</para>
+
+</section>
+
+<section xml:id="sec-tms-upload">
+<title>TMS upload</title>
+
+<para>
+If you have configured details of a TMS in the preferences dialogue
+(<xref linkend="ch-preferences"/>) you can upload a completed DCP
+straight to your TMS buy choosing <guilabel>Send DCP to TMS</guilabel>
+from the <guilabel>Jobs</guilabel> menu.
+</para>
+
+</section>
+
+
+<section xml:id="sec-ab">
+<title>A/B comparison</title>
+
+<para>
+When evaluating the effects of different filters or scalers on the
+image quality, A/B mode might be useful. In this mode, DCP-o-matic
+will generate a DCP where the left half of the image uses some
+‘reference’ filtering and scaling, and the right half of
+the image uses a different set of filters and a different scaler.
+This DCP can then be played back on a projector and the image quality
+evaluated.
+</para>
+
+<para>
+To enable A/B mode, click the A/B checkbox in the setup area of the
+DCP-o-matic window. When you generate your DCP, the left half of the
+screen will use the filters and scaler specified in the <xref
+linkend="ch-preferences">preferences</xref> dialogue, and the right
+half will use the filters and scaler specified in the film setup.
+</para>
+
+</section>
+
+<section xml:id="sec-servers">
+<title>Encoding servers</title>
+
+<para>
+One way to increase the speed of DCP encoding is to use more
+than one machine at the same time. An instance of DCP-o-matic can
+offload some of the time-consuming JPEG2000 encoding to any number of
+other machines on a network. To do this, one ‘master’
+machine runs DCP-o-matic, and the ‘server’ machines run
+a small program called ‘servomatic’.
+</para>
+
+<section>
+<title>Running the servers</title>
+
+<para>
+There are two options for the encoding server;
+<code>servomatic_cli</code>, which runs on the command line, and
+<code>servomatic_gui</code>, which has a simple GUI. The command line
+version is well-suited to headless servers, especially on Linux, and
+the GUI version works best on Windows where it will put an icon in the
+system tray.
+</para>
+
+<para>
+To run the command line version, simply enter:
+</para>
+
+<programlisting>
+servomatic_cli
+</programlisting>
+
+<para>
+at a command prompt. If you are running the program on a machine with
+a multi-core processor, you can run multiple parallel encoding threads
+by doing something like:
+</para>
+
+<programlisting>
+servomatic_cli -t 4
+</programlisting>
+
+<para>
+to run 4 threads in parallel.
+</para>
+
+<para>
+To run the GUI version on windows, run the ‘DCP-o-matic encode
+server’ from the start menu. An icon will appear in the system
+tray; right-click it to open a menu from whence you can quit the
+server or open a window to show its status.
+</para>
+
+</section>
+<section>
+<title>Setting up DCP-o-matic</title>
+
+<para>
+Once your servers are running, you need to tell your master
+DCP-o-matic instance about them. Start DCP-o-matic and open the
+<guilabel>Preferences</guilabel> dialog from the
+<guilabel>Edit</guilabel> menu. At the bottom of this dialog is a
+section where you can add, edit and remove encoding servers. For each
+encoding server you need only specify its IP address and the number of
+threads that it is running, so that DCP-o-matic knows how many
+parallel encode jobs to send to the server.
+</para>
+
+<para>
+Once this is done, any encodes that you start will split the workload
+up between the master machine and the servers.
+</para>
+
+</section>
+<section>
+<title>Some notes about encode servers</title>
+
+<para>
+DCP-o-matic does not mind if servers come and go; if a server
+disappears, DCP-o-matic will stop sending work to it, and will check
+it every minute or so in case it has come back online.
+</para>
+
+<para>
+You will probably find that using a 1Gb/s or faster network will
+provide a significant speed-up compared to a 100Mb/s network.
+</para>
+
+<para>
+Making changes to the server configuration in the master DCP-o-matic
+will have no effect while an encode is running; the changes will only
+be noticed when a new encode is started.
+</para>
+
+</section>
+</section>
+
+</chapter>
+
+
+</book>
projects / dcpomatic.git / commitdiff
