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</div><div class="twikiRevInfo"><span class="twikiGrayText"><span class="twikiToolbarElem">Cinelerra.TrackControl</span><span class="twikiToolbarElem">r1.11 - 15 Nov 2004 - 18:47 - <a class="twikiLink" href="../Main/ArthurSosa">ArthurSosa</a></span><span class="twikiToolbarElem"><a href="#TopicEnd">topic&nbsp;end</a></span></span></div></div>
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<h3><a name="Track_Controls"> </a><a name="_Track_Controls_"> </a> <a class="twikiLink" href="TrackControl">Track Controls</a> </h3>
<img src="../../../pub/Cinelerra/CinelerraImages/program_track_control.png" /><br>
Track Controls are the set of controls that manage all media tracks available on the timeline. the <a class="twikiLink" href="TrackControl">TrackControls</a> are located on the left side of the <a class="twikiLink" href="MainProgram">MainProgram</a> window and provide the following features :
<p />
<h4><a name="Text_Area"> </a> Text Area  </h4>
<ul>
<li> All tracks have a Text Area. The Text Area is used to label all the different segments of media on the program window when working with multiple audio and video tracks. 
</li>
</ul>
<p />
<h3><a name="The_PatchBay"> </a> The <a class="twikiLink" href="PatchBay">PatchBay</a> </h3>
<p />
The patchbay enables/disables features specific to each track. 
<p />
<code><b>All tracks have a <a class="twikiLink" href="PatchBay">PatchBay</a> with the following row of toggles:</b></code>
<a name="PlayTrack"></a>
<h4><a name="Play"> </a> Play </h4>
<ul>
<li> <img src="../../../pub/Cinelerra/CinelerraImages/program_track_toggles_play.png" alt="program_track_toggles_play.png" />  
</li>
<li> Play track determines whether the track is rendered or not. If it's off, the track is not rendered. However, if the track is chained to any other tracks, the other tracks perform all the effects in the chained track, regardless of play status.
</li>
</ul>
<a name="ArmTrack"></a>
<h4><a name="Arm_Disarm"> </a> Arm / Disarm  </h4>
<ul>
<li> <img src="../../../pub/Cinelerra/CinelerraImages/program_track_toggles_arm.png" alt="program_track_toggles_arm.png" />
</li>
<li> Arm track determines whether the track is armed or not. Only the armed tracks are affected by editing operations. Make sure you have enough armed destination tracks when you paste or splice material or some tracks in the material will get left out.
</li>
</ul>
<p />
<ul>
<li> In addition to restricting editing operations, the armed tracks in combination with the active region determine where material is inserted when loading files. If the files are loaded with one of the insertion strategies which doesn't delete the existing project, the armed tracks will be used as destination tracks.
</li>
</ul>
<a name="GangFader"></a>
<h4><a name="Gang_fader"> </a> Gang fader </h4>
<ul>
<li> <img src="../../../pub/Cinelerra/CinelerraImages/program_track_toggles_gang.png" alt="program_track_toggles_gang.png" />
</li>
<li> Gang fader causes the fader to track the movement of whatever other fader you're adjusting. A fader is only ganged if the arm track is also on. This is normally used to adjust audio levels on all the tracks simultaneously.
</li>
</ul>
<a name="DrawMedia"></a>
<h4><a name="Draw_media"> </a> Draw media </h4>
<ul>
<li> <img src="../../../pub/Cinelerra/CinelerraImages/program_track_toggles_draw.png" alt="program_track_toggles_draw.png" />  
</li>
<li> Draw media determines if thumbnails or waveforms are drawn on the track. By default, some file formats load with this off while other file formats load with it on. This depends on whether the file format takes a long time to draw on the timeline. Merely set it to on if you want to see thumbnails for any file format.
</li>
</ul>
<a name="MuteTrack"></a>
<h4><a name="Mute_track"> </a> Mute track </h4>
<ul>
<li> <img src="../../../pub/Cinelerra/CinelerraImages/program_track_toggles_mute.png" alt="program_track_toggles_mute.png" />
</li>
<li> Mute track causes the output to be thrown away once the track is completely rendered. This happens whether or not play track is on. If the track is part of an effect chain, the output of the effect chain track is overlayed on the final output even though it's routed back to another track. Mute track is used to keep the effect chain track from overlapping the output of the source track.
</li>
</ul>
<p />
<h4><a name="Patch_Bay_Tips"> </a><a name="Patch_Bay_Tips_"> </a> <img src="../../../pub/TWiki/TWikiDocGraphics/tip.gif" border="0" alt="TIP" width="16" height="16" />Patch Bay Tips : </h4>
If the toggle is colored, it is enabled. If the toggle is the background color of most of the windows, it is disabled. Click on the toggle to enable or disable the feature. Several mouse operations speed up the configuration of several tracks at a time.
<p />
<ul>
<li> Click on an attribute and <strong>drag</strong> across adjacent tracks to toggle the same attribute in those tracks.
</li>
</ul>
<p />
<ul>
<li> Hold down <strong>shift</strong> while clicking a track's attribute to toggle the attribute in all the tracks.
</li>
</ul>
<p />
<ul>
<li> Hold down <strong>shift</strong> while clicking an attribute. Click until all the tracks except the selected one are disabled. Then drag the cursor over the adjacent track to enable the attribute in the adjacent track.
</li>
</ul>
<p />
-- <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a> - 05 Jan 2004  <strong><em>from <a class="twikiLink" href="SecretsOfCinelerra">SecretsOfCinelerra</a> &amp; <a class="twikiLink" href="../Main/HermanRobak">HermanRobak</a></em></strong>
<hr />
<p />
<p />
<h4><a name="Expander"> </a> Expander  </h4>
<img src="../../../pub/Cinelerra/CinelerraImages/program_track_control_expander_1-1-8.png" alt="program_track_control_expander_1-1-8.png" />
<strong>MediaTrack control Expander</strong> (from Cinelerra 1.1.8)
<p />
<ul>
<li> All <a class="twikiLink" href="MediaTrack">tracks</a> have an expander for viewing more options and for viewing the effects on the track. 
</li>
<li> Click on the expander to expand or collapse the track. If it's pointing sideways, the track is collapsed. If it's pointing down, the track is expanded. The effects appear below the media for the track if they exist.
</li>
</ul>
<p />
<h3><a name="Overlay_Mode_s"> </a><a name="_Overlay_Mode_s"> </a> <a class="twikiLink" href="OverlayMode">Overlay Mode</a>s </h3>
<p />
Every video <a class="twikiLink" href="MediaTrack">MediaTrack</a> has an <a class="twikiLink" href="OverlayMode">OverlayMode</a>, accessible by expanding the track. The overlay mode is a pulldown menu on the left under the fader. When collapsed, it displays an icon representing the current overlay mode.
<p />
<img src="../../../pub/Cinelerra/CinelerraImages/overlay_mode.png" alt="overlay_mode.png" /><br>
Select the expand track toggle to view all the options for a video track if you can't see the overlay mode. The overlay mode of video tracks is normal by default. Select other modes by clicking the overlay button and selecting an item from the popup menu.
<p />
Overlay modes are processed inside the projector stage of compositing. The different modes are summarized below.
<p />
<h4><a name="Normal"> </a> Normal </h4>
<ul>
<li> Uses a traditional Porter-Diff equation to blend tracks with alpha. When no alpha exists in the project color model, the new track always replaces the output.
</li>
</ul>
<h4><a name="Addition"> </a> Addition </h4>
<ul>
<li> In this mode, whatever is in the output is added to the current track. The result is blended based on the current track's alpha onto the output.
</li>
</ul>
<h4><a name="Subtraction"> </a> Subtraction </h4>
<ul>
<li> In this mode, the current track is subtracted from the output and the result is alpha blended onto the output.
</li>
</ul>
<h4><a name="Multiply"> </a> Multiply </h4>
<ul>
<li> is the most useful operation. The current track is multiplied by the output and the result blended onto the output. Usually a black and white image with no alpha channel or a white title on a black image is used as the current track. With the multiply operation, only the output portions under the white area show.
</li>
</ul>
<h4><a name="Divide"> </a> Divide </h4>
<ul>
<li> divides the current track by the output and the result is blended into the output. It usually results in overloaded levels.
</li>
</ul>
<h4><a name="Replace"> </a> Replace </h4>
<ul>
<li> does no blending and overwrites the output with the current track. 
</li>
</ul>
<p />
-- <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a> - 21 Dec 2003 <strong><em>from <a class="twikiLink" href="SecretsOfCinelerra">SecretsOfCinelerra</a></em></strong>
<hr />
<p />
<p />
<h4><a name="Nudge"> </a> Nudge </h4>
<img src="../../../pub/Cinelerra/CinelerraImages/audio_track_pan-nudge.png" alt="audio_track_pan-nudge.png" />
<ul>
<li> Each track has a nudge textbox under the fader and on the right. You may have to <strong>expand</strong> the track to see it. The nudge is the amount the track is shifted left or right during playback. The track is not displayed shifted on the timeline, but it is shifted when it's played back. This is useful for synchronizing audio with video, creating fake stereo, or compensating for an effect which shifts time, all without tampering with any edits.
</li>
<li> Merely enter in the amount of time to shift by to instantly shift the track. Negative numbers make the track play later. Positive numbers make the track play sooner. 
</li>
<li> The nudge units are either seconds or the native units for the track. Select the units by right clicking on the nudge textbox and using the context sensitive menu. 
</li>
</ul>
<p />
<h4><a name="Fader"> </a> Fader </h4>
<ul>
<li> All tracks have a fader, but the units of each fader depend on whether it's audio or video. Click and drag the fader to fade the track in and out. If it is ganged to other tracks of the same media type, with the arm option enabled, the other faders should follow.
</li>
</ul>
<p />
<ul>
<li> Hold down shift and drag a fader to center it on 0.
</li>
</ul>
<p />
<h4><a name="Audio_Pan_Control"> </a> Audio Pan Control </h4>
<ul>
<li> The audio pan control to the left is self explanatory.  Drag the red cross to pan the track between the output channels.  There may be more than two output channels.
</li>
</ul>
<p />
<p />
<p />
<h3><a name="Slightly_changed_controls_in_Cin"> </a> <img src="../../../pub/TWiki/TWikiDocGraphics/new.gif" border="0" alt="NEW" width="28" height="8" />Slightly changed controls in Cinelerra 1.1.8 </h3>
<p />
The track controls in release 1.1.8 of Cinelerra look slightly different, and offer an extra feature: "nudge".
<p />
<img src="../../../pub/Cinelerra/CinelerraImages/program_track_control_1-1-8.png" alt="program_track_control_1-1-8.png" />  Unexpanded.
<p />
<img src="../../../pub/Cinelerra/CinelerraImages/program_track_control_expand_1-1-8.png" alt="program_track_control_expand_1-1-8.png" />  Expanded.
<p />
<p />
-- <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a> - 16 Dec 2003
<hr />
-- <a class="twikiLink" href="../Main/HermanRobak">HermanRobak</a> - 03 Jan 2004
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<div class="twikiTopicInfo twikiRevInfo twikiGrayText twikiMoved"><i>Cinelerra.TrackControl moved from Cinelerra.TrackControls on 22 Jan 2004 - 21:51 by <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a> </i> - <a title="Click to move topic back to previous location, with option to change references." href="http://www.ftconsult.com/twiki/bin/rename/Cinelerra/TrackControl?newweb=Cinelerra&newtopic=TrackControls&confirm=on">put it back</a></div>
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