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Old 18th July 2020, 01:05   #1  |  Link
Treaties Of Warp
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Join Date: Apr 2019
Posts: 14
x264 "Lossless" [--qp 0] question

--qp 0 is supposed to be "lossless" as I've read.

So, I can see how the following is "lossless":

Code:
x264 --preset veryslow --qp 0 --no-deblock --profile high444 --sync-lookahead 12
--no-psy --sar 1:1 --qpfile GENERATED_QP_FILE --non-deterministic --range tv
--colormatrix bt470bg --demuxer raw --input-res 720x480 --input-range tv
--input-depth 8 --fps 25/1 --output-csp i444 --output-depth 8 --output
OUTPUTFILE -
But x264 also allows specification with --qp 0, of --output-csp i422 and --output-csp i420.

So, how can i420 be lossless?
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i420, i444, lossless, qp 0, x264

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