[Daniel Low]

4 hours for 1 hour is pretty slow but it’s a bit too late to go get another transcoding application or start experimenting with FLV settings.

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[Daniel Low]

Adding a tiny amount of noise to a gradient or dithering it will help, I know it sounds odd but it can do the trick.

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[Daniel Low]

It’s all very well listing all these codecs but the OP will still be playing a guessing game with his client, therefore he’s better off giving them uncompressed if they won’t give him anymore information!

BTW: DVCPro50 is an intra frame format that is 50Mb/s (which equals 6.25MB/s, not 7-8MB/s). It’s not variable.

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[Daniel Low]

https://forums.creativecow.net/readpost/20/862073

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[Daniel Low]

Well you have a choice of Cinepak, DV and Uncompressed. You can forget about using Cinepak due to the quality and Uncompressed is likely to result in far too much data to be transportable but at least the quality won’t be affected.

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[Daniel Low]

[Chris Tomkins] “In the meantime, I thought I might just research whether there is a “common” codec/setting to use in AVIs if you’re wanting to edit footage. “

There’s no such thing as a common AVI codec for PC editing.

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[Daniel Low]

[nayim saati] “now since im going out progressive and my footage was originally progressive what should the deinterlace filter be set to? i dont want it to deinterlace anything…. any ideas what this means??? “

If you read the manual you’ll see that compressor will ignore the deinterlace setting if the footage is progressive

[nayim saati] “also if my footage is 59.94 and im compressing it to 29.97 for dvd arent i losing half my frames and wont this cause me issues??? “

You won’t lose half your frames, they’ll be interpolated down to 29.97, again, consult the manual for a description of the controls for this. (Hint: Page 259)

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[Daniel Low]

https://forums.creativecow.net/readpost/20/862073

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[Daniel Low]

Actually these are called I-Frames.

I-Frame only encoding is popular with broadcasters using the MPEG-2 format (Usually at 50Mb/s) but’ve not heard of anyone using it with MPEG-4 AVC.

I-Frame only allows each and every frame a full amount of data whether it needs it or not, there are no predictive frames. The base compression is similar to PhotoJPEG but more advanced. JPEG2000 is the equivalent and is used in many Digital Cinema applications.

I-Frame only is the least efficient method of video compression other than using uncompressed of course.

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[Daniel Low]

4×4 will result in smaller macroblocks, but these should only present themselves if you are using very aggressive bitrates.

If you are authoring for BluRay you normally have the luxury of using high enough bitrates to avoid macroblocking in all but the most challenging pieces.

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