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Lossless and Lossy Editing Workflows - TreetWiki

Lossless and Lossy Editing Workflows

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* Because the final export format is the same as the clip and intermediate format, the final frames match pixel-for-pixel with the frames present on the original timelines.
* Because the final export format is the same as the clip and intermediate format, the final frames match pixel-for-pixel with the frames present on the original timelines.
* Avid and Final Cut systems have the ability to output what are called "reference movies" which actually refer to the exact clips on the timeline rather than copying the frames at all.  Thus, an long and complex edit involving terabytes of content may result in finished files which are only a fraction of the original size.
* Avid and Final Cut systems have the ability to output what are called "reference movies" which actually refer to the exact clips on the timeline rather than copying the frames at all.  Thus, an long and complex edit involving terabytes of content may result in finished files which are only a fraction of the original size.
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[[File:Lossless Workflow.png]]
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=== Does it matter? ===
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It should be obvious from the above that lossless workflows are superior.  However, they require a great deal of discipline and require that archives and source imports be carefully converted and managed.  While they produce better quality, they may not be worth the effort, especially if your editing package does not support the features necessary to control the internal workflow parameters it uses.
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You can get away with lossy workflow if:
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* You are only using your creations on the web and do not care about DVD or BluRay results.
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* You will not be giving your footage to professional broadcasters (such as CNN, ABC, or HBO) for inclusion in their program material.
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* You will not be using the output of one editing session in other sessions (such as when inserts or credits are created then used again).
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But, if you are concerned about any of the following, it may be worth investigating lossless workflows:
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* Broadcasters are picky about chroma and encoding quality.  Many broadcasters will reject video which is not created with suitable workflow.
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* If you are building an archive you feel may be reused by others.
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* If you are storing video and may later re-combined or re-use it to create new programming.

Current revision as of 14:47, 15 July 2011

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