Monday, June 3, 2013

Re: [Avid-L2] H.264 Gamma Shift Adjustment Standards?

 

go to the Vimeo Compression page

http://vimeo.com/help/compression

and look along the right hand side at the tutorials. I know this may sound crazy, but check out and try Handbrake. I've never been wild about h.264 for checking color and it usually screws it up, but Handbrake actually does a ok job of it. Not great, but ok, which is better than many others. So don't get your hopes too high.

Jay

On Jun 3, 2013, at 10:13 AM, Martin wrote:

> I appreciate I am likely beating a dead horse here, but I'm hoping
> someone can't point me to a definitive link to my issue. I have searched
> long and hard and all roads lead me to, well, other roads.
> I am trying to compress a copy of my show for Vimeo. Vimeo requires the
> H.264 codec. I export a copy of my show from MC 5.5.3 Same as Source. At
> this stage I get, as you would expect, a QT that perfectly matches my
> Avid cut for luma and chroma. I then have a choice on my system of
> Compressor, MPEG Streamclip or QuickTime Pro to compress to H.264. All
> three of these tools give me a sequence that is washed out: blacks,
> whites and colors are all dull.
> I've found and installed the X264 codec and tried it and I get a QT to
> the other extreme: blacks crushed, whites blown out and colors
> exaggerated.
> Am I having this problem because none of these compressors are good
> enough? Is there a successful workaround? As inelegant as it is, I would
> be prepared to adjust the levels on my show before export, but how much?
> Honestly, I'm not trying to get folks to repeat a conversation that's
> been talked to death, but X264 was my last lead.
> (Due diligence forced me to do one more search before hitting Send and I
> came up with this
> <http://byteful.com/blog/2010/07/how-to-fix-the-h264-gamma-brightness-bu\
> g-in-quicktime/> from July of 2010 regarding a Japanese version of
> X264. Has anyone tried this? I will be.)
> Any direction would be hugely appreciated,
> Martin
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Search the official Complete Avid-L archives at: http://archives.bengrosser.com/avid/
> Yahoo! Groups Links
>
>
>

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