Linked by Eugenia Loli on Wed 17th Sep 2008 23:09 UTC
Multimedia, AV Dirac is an advanced royalty-free video compression format designed for a wide range of uses, from delivering low-resolution web content to broadcasting HD and beyond, to near-lossless studio editing. The v1.0.0 version was released yesterday, and the new VLC version supports playback of .ts/.drc Dirac files.
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RE[6]: Schrodinger
by JrezIN on Thu 18th Sep 2008 02:41 UTC in reply to "RE[5]: Schrodinger"
JrezIN
Member since:
2005-06-29

In today's workflows, unless you do VFX where frame-by-frame lossless images are read/generated by these tools, that is not needed. There are good digital intermediate formats for editing/archiving, like Cineform.


These are not that common in workflows for cinema... Not only to editing frame by frame (like VFX), but for standard color correction tools like Autodesk Lustre (quite popular), cleaning tools, and similar ones... this kind of application is necessary when you target projection quality and dynamic range... The industry usually uses sequence files (be it DPX/Cineon or OpenEXR or even TIFFs...) to these tasks... (with several limitations... TIFFs are usually uncompressed, metadata--like keycodes-- is very important to keep, and several other limitation depending of your workflow, printing machine, delivery LUTs or even projector type.)

Also, there's nothing wrong in generating standard video files from PNG sequences... it's a well supported format, lossless (8bit per channel only, but lossless...) and easy to deliver to encoding facilities via internet or optical media... some other format or solution may depend proprietary software, incompatible versions or may limit who can encode your work to the delivery format... You may prefer your workflow, but there's nothing wrong in this PNG one... it may have advantages depending of your needs...

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