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I've had good luck with ffmpeg's PhotoJPEG (aka mjpeg) in the past. For 8bpc also look at Hap--large file sizes, uses GPU texture compression, designed for very fast playback of > 4K.
NickÂ
Stephen what artefacts are you getting @ 100% quality? I've always thought - after being directly told by an Apple engineer - that JPEG at 100% was practically lossless, and any differences were due to rounding errors and not compression artefacts.
Teddy,
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PhotoJPEG was a fail – color & gamma shift, artifacts at 100% quality.
Â
Stephen
Â
From: After Effects Mail List <AE-List@media-motion.tv>
Sent: Wednesday, February 20, 2019 10:59 AM
To: After Effects Mail List <AE-List@media-motion.tv>
Subject: Re: [AE] Visually lossless codec thoughts
Â
Did you try photo-jpeg in an mov? Definitely worth a test.
Â
X264 lossless and x265 are both fails. X264 at 10-bit, AE says is 8-bit. X265 take 10x time to render out in Media Encoder and takes an unknown time (at least 100x) to build a frame.
I gave up after 11 hours – every other codec was 14 to 22 minutes a frame.
Â
Adobe and x265 simply don’t play in my experience.
Â
From: After Effects Mail List <AE-List@media-motion.tv>
Sent: Wednesday, February 20, 2019 5:57 AM
To: After Effects Mail List <AE-List@media-motion.tv>
Subject: Re: [AE] Visually lossless codec thoughts
Â
x264 has lossless compression methods and can also be 10bit.
AfterCodec has support for 10bit and YUV 4:4:4, not the lossless mode as far as i can see, but a high bitrate x264 should be better than the old simpler DCT based Prores or DNxHR
at comparable bitrates
Now the question is if AE will import them correctly again.
Â
Personally I have the opposite experience, with Prores producing about
20% larger files than same flavor Cineform. I tried CFYUV10bit.
On 20-Feb-19 01:07, Teddy Gage wrote:
> Chris AFAIK cineform files are even bigger than Prores at the same
> flavor.
+---End of message---+
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