Daniel Low
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Try using the colour space of 4:2:0, which is what this MPEG-2 will likely use.
You can also adjust your colour settings using the filters in compressor to compensate for the errors you are getting.
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Actually it would be 720×576 if you use the (superior) PAL format rather than the 720×480 of NTSC.
😉
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BT.601 and BT.709 are colour spaces used for standard def and High def video.
It’s common for problems with contrast to happen when this conversion is done or not done correctly.
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Could be that some trickery around BT.601 and BT.709 colour-space conversion between is going on somewhere in the chain.
What Canopus device is playing this back?
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Don’t get Quicktime and H.264 confused, although the Quicktime file format was used as the basis for the MPEG-4 file format and H.264 is the choice of encoding format for Apple and Apple, quite rightly pushes it heavily, that’s all.
You don’t need to have Quicktime installed to play back H.264 and there are plenty of other ways to encode H.264 without using Quicktime.
Suggest to your programmers that they should recode to use Flash or Silverlight as both of those formats can playback H.264 and Flash has the greatest player penetration of anything.
Ditch WMV, I think it’s days are over.
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On a Windows box, using the settings you suggested (1.2Mbs) it looks ok, but not on the Mac
It shouldn’t be the case but you’ve nailed it here. WMV on the Mac is not an ideal combination. Never has been. Silverllight may go some way to improve matters (I’ve yet to see it) but is there a specific reason you are using WMV rather than the superior H.264?
These days I only advise people to use WMV when they are forced to have the specific DRM requirements that Microsoft offers, it’s a pain to encode, as it’s so slow and can’t use multiple cores, and it only plays back well under Windows.
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Did you do like I suggested and step through the video frame by frame?
Is it possible for you to post this video somewhere?
Does this happen when you play it back on other computers?
Does it drop/skip a frame in the same place each time and with each different encode?
Have you double checked that it isn’t a problem with the source file?
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Have a look at the OneRiver CODEC resource site I keep mentioning on here:
https://codecs.onerivermedia.com/Have you tried PhotoJPEG at over 75% quality?
Have you tried one of the Blackmagic codecs?
https://www.blackmagic-design.com/support/software/Have you tried Apple ProRes422?
Have you tried Apple Pixlet?
Let us know how you get on.
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Daniel Low
October 16, 2008 at 12:13 am in reply to: Lets Have a Nice Talk: Best Compression Codecs That work for you.in the whole scheme of things, HDV is a crap format, it’s not a codec. HDV uses MPEG-2, which in itself is also a fomat that does not dictate a codec. Both HDV and MPEG-2 are 8 bit with MPEG-2 using the best of 4:2:2 so gradients from graphics or 3d renders will always look less than good.
Lossless? Uncompressed? Depends what background you are from and what you want to deliver to, and another reason why I pointed you towards that previous thread.
On order to determine what codec or codecs are best for you, one would need to understand your worflow and what limitations you have in terms of technology, time, money and knowledge, but ultimatley it’s what you want to deliver your content to. In other words, there’s no point in having an uncompressed 4:4:4 16bit workflow if you are delivering to Flash!
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Daniel Low
October 15, 2008 at 11:06 pm in reply to: Lets Have a Nice Talk: Best Compression Codecs That work for you.Ok, to kick things off, have a look at the link at the bottom of a post I replied to earlier today on the same subject.
https://forums.creativecow.net/readpost/20/860641
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Please post back saying what solved your problem. It could help others, and saying ‘thanks’ is free!