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104 lines
2.7 KiB
HTML
104 lines
2.7 KiB
HTML
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<!DOCTYPE html>
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<html>
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<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" >
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<title> Rework the GStreamer Editing Services class hierarchy </title>
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<xmp theme="cerulean" style="display:none;">
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Reasoning:
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----------
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All the time (position) related concepts are shared between GESTimelineObject and GESTrackObject
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and currently are repeated at the 2 levels.
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Moreover, if we want to add the concept of Group we end up with something quite similare to the current
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GESTimelineObject but that contains GESTimelineObject-s instead of GESTrackObject-s so we could share
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those informations creating a new class aiming at containing the objects that have that
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notion of timing.
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At the same time, we want to clarify namings. First we should remove the word Object in class names,
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we have been told various times that it sounds just "wrong" for people as Objects are instances and there
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we are talking about Classes.
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Class Hierarchy:
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-------------
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<pre><code>
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<table>
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<tr>
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<td>
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Before:
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-------
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GESTimelineObject
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GESTimelineSource
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GESCustomTimelineSource
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GESTimelineTestSource
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GESTimelineFileSource
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GESTimelineTitleSource
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GESTimelineOperation
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GESTimelineOverlay
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GESTimelineTextOverlay
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GESTimelineTransition
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GESTimelineTransition
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GESTimelineEffect
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GESTimelineParseLaunchEffect
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GESTimelineLayer
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GESSimpleTimelineLayer
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GESTrackObject
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GESTrackSource
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GESTrackAudioTestSource
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GESTrackFileSource
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GESTrackImageSource
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GESTrackTitleSource
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GESTrackVideoTestSource
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GESTrackOperation
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GESTrackTransition
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GESTrackAudioTransition
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GESTrackVideoTransition
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GESTrackEffect
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GESTrackParseLaunchEffect
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GESTrackTextOverlay
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</td>
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<td>
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After:
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-------
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GESTimelineElement
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GESContainer
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GESClip
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GESSourceClip
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GESCustomSourceClip
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GESTestClip
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GESUriClip
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GESTitleClip
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GESOperationClip
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GESOverlayClip
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GESTextOverlayClip
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GESBaseTransitionClip
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GESTransitionClip
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GESBaseEffectClip
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GESEffectClip
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GESClipGroup
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GESTrackElement
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GESSource
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GESAudioTestSource
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GESUriSource
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GESImageSource
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GESTitleSource
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GESVideoTestSource
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GESOperation
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GESTransition
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GESAudioTransition
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GESVideoTransition
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GESBaseEffect
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GESEffect
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GESTextOverlay
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</td>
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</tr>
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</table>
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</code></pre>
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</xmp>
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<script src="http://strapdownjs.com/v/0.1/strapdown.js"></script>
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</html>
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