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Compressor pixelating my films!
I’ve got two or three 4 minute films that I am trying to compress yet every time I use compressor they turn out pixelated??
I have tried so many different settings yet nothing seems to work?
They were all converted to Pro Re 422(LT) before I took them into FInal Cut Pro – I let FInal Cut change the sequence settings to suit.
On Compressor I restrict to 5000, set frame rate to 25 (have also tried the automatic settings), have turned frame controls on and off – what is going on?
Can anyone help me on this?
Thanks
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5 Replies
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Hi Gavin,
Using Compressor´s “Frame Control” makes sense if you need to re-size, de-interlace or change the time-base.
I guess you are making an H264, but I don´t know if 5Mbps is enough data-rate because you do not mention the picture size.
Leave “Keyframes = AUTO” and use Multipass.
rafael -
What format are you transcoding to? What’s the deliverable? What’s the frame size (source/deliverable)? Is there a lot of hand held camera work, fast pans, fast motion, etc?
Why are you restricting the data rate to 5000kb/s? If uploading to YouTube or Vimeo (assuming h.264) and your length is only 3-4 minutes you can easily double that data rate (I’d probably at least triple it).
Ryan Holmes
http://www.ryanholmes.me
vimeo.com/ryanholmes -
Hey Ryan
Thanks for coming back on this
Am compressing to h.264 at 1920 x 1080
Am unsure what deliverable means?
Will up the data rate for sure – was unaware I could go so much higher
Do I use Frame Controls? the footage is from a 7D which shoots progressive?
Gavin
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thanks Ryan
I will up the data rate
Am guessing I can leave Frame Controls off as it was shot 1920 x 1080 on a 7D?
Gav
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I think 5000 is a pretty safe data rate usually. It’s what Vimeo recommends on their Compression page ( https://vimeo.com/help/compression ). In my experience, sometimes you just have to throw a higher data rate at the video to get the results you want. The trade off being you’ll have a larger file (what I would call a deliverable – you’re delivering in its final form somewhere).
I just posted a video on YouTube last week with a data rate of 30,000kb/s. Yes, it was overkill. But at the same time the only penalty I incurred was a slightly longer upload time. If you’re willing to wait for the upload, YouTube can choke down up to 10GB files (maybe 20GB…haven’t checked in awhile). Vimeo is a bit of a different story as space there is much more limited. But @ 1080p I think you should be around 7500kb/s if not at 10000kb/s.
Just my $.02.
Ryan Holmes
http://www.ryanholmes.me
vimeo.com/ryanholmes
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