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Originally Posted by Hotte
cineform
compatible but very bad timeline performance
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Interesting, it's faster in other programs than HQX. Probably the fastest CPU based high quality intermediate . (There are faster GPU ones, like Daniel2, NotchLC)
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DNxHD
compatible but not available
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You can use ffmpeg as alternative (unless you require something specific in vdub2 ?)
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Any other suggestions ?
HEVC / H.264 are not all intra so probably not the best intermediate choice...
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HEVC will be too slow to decode.
h264 can be set intra, but even with the fastest decode settings (tune fastdecode, intra) , is typically more sluggish on the timeline (high latency) compared to prores, cineform. (However, some editors can use GPU accelerated decoding of h264, but usually not 10bit422, only the 8bit variants)
But x264 can be significantly higher quality at qp 1 than prores xq4444 or HQX - PSNR is typically ~8-15 db higher)
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My questions:
ProRes could be an candidate. I wonder why this proprietary codec is available in vfw from a technical pov (I thought vfw could not manage >8 bit ?) and from a license pov ? I mean 422HQ is pretty good and XQ freely available - how come ?
Are there any other hq-codecs available and installable - how does that work ?
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The prores version in vdub2 is the libavcodec/ffmpeg version . It's not VFW.