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CRF for 'visually lossless' for libx265 [duplicate]

The ffmpeg wiki page for H.264 states that: Consider 18 (CRF) to be visually lossless or nearly so: it should look the same or nearly the same as the input but it isn't technically lossless. ...
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72 views

x265: Is it possible to re-compress HEVC video without quality loss?

My situation: Transcoding 1080p bluray videos to HEVC. Audio untouched; My rig is old (pre-2012) and to speed up the process I'm using --preset ultrafast; From x265 documentation, I understand that ...
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26 views

h264 and h265 keyint params settings

Fiddling with the h264 and h265 params I found both keyint and min-keyint settings. Setting keyint shouldn't force the codec library to use exactly that frame interval? Do min-keyint have something ...
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32 views

ffmpeg encode in all-i mode h264 and h265 streams

Which params I can use to obtain a transcode all-i based? No B and P frames? I know that this is not efficient for compression purposes but this is not my case now. I guess i have to fiddle a bit ...
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1k views

What CRF or settings I should choose for h265 in order to achieve a similiar quality of h264?

I'm doing some experiments with HEVC x265. I have a raw footage and the quality of details of h264 with same CRF setting looks better than h265. Shouldn't be the opposite? Maybe my setup isn't the ...
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417 views

using a 265 encoded video with a container

Let me start by saying im not a video production guy. I am a programmer so im in over my head in certain areas. Ive been trying to use ffmpeg to mess around with HEVC encoded video. I was told it ...
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511 views

What needs to happen before we expect x265 to be in wide use, along with encoders something like Handbrake available for it?

I know that the project is already out and work has began on it. However, realistically speaking, a large number of things have to happen before it is ready for prime time. (For example, given the ...