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1920×1080 compression settings for desktop playback
I tried searching around for an answer to this but haven’t been able to find anything.
I’m trying to compress a 20min 1920×1080 video clip that will be used as a looping display and played off a mac mini (2.66Ghz, 2GB ram). I rendered out a Apple Pro Res (1920×1080, 30p, 48Khz) Quicktime from FCP, which looked pretty good, but there were some minor glitches which I’m guessing are from the computer trying to playback the video. After that, I rendered out a H264 with a data rate of 8000 and it looked horrible. Then, I rendered out a DVCPROHD 1080p30 quicktime form FCP but when I dropped it onto the Mac Mini it wasn’t able to read it (codec issue).
Anyone have any suggestions as to what would be the best compression settings for a HD video (1920×1080) that’ll be played back with Quicktime on a Mac Mini?
Thanks.
Go fly fishing.
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4 Replies
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I’m surprised that h264 @ 8Mbps looked horrible. Granted, thats the same bitrate that SD DVD usually runs at, but I routinely work in 8-12 Mbps and they look completely fine. I’d be more interested in how you “exported” that file?
Did you try to up the bitrate to something closer to Blu-ray numbers? 12-20Mbps?
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Exported from FCP…
Quicktime conversion…
H264
Frame Rate: Current
Key Frame: All
Limit Data Rate: 8000
Size: 1920×1080
Render: BetterSound: ACC…
Tried 12000, and it definetly looked better, but still had grain in the dark areas. Would something like 15000 still play without glitches?
Go fly fishing.
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Not sure if it’s an option, but we use Cineform codecs for HD stuff and they’ll play on almost anything. The codecs are a little pricey but they’re worth it if you need really small file sizes and virtually transparent compression. I literally can’t tell the difference between an uncompressed HD file and a cineform compressed one that’s less than a tenth the size…and that’s in scenes with animated gradients and heavy graphics, which usually suffer quite a bit.
I’m surprised ProRes won’t play smoothly as it’s a similar codec in terms of how it compresses and is decoded.
Chris Blair
Magnetic Image, Inc.
Evansville, IN
http://www.videomi.com
Read our blog http://www.videomi.com/blog -
Do not use Export to Quicktime. Use compressor.
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Sent from my iPad Nano.
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