Selur's Little Message Board
[HELP] how to get the super best encode quality? no consider hard disk space - Printable Version

+- Selur's Little Message Board (https://forum.selur.net)
+-- Forum: Hybrid - Support (https://forum.selur.net/forum-1.html)
+--- Forum: Problems & Questions (https://forum.selur.net/forum-3.html)
+--- Thread: [HELP] how to get the super best encode quality? no consider hard disk space (/thread-1312.html)

how to get the super best encode quality? no consider hard disk space - ssdde - 17.04.2020

if i set like this, can get the super best of best quality which theoretically speaking? no consider hard disk space in spite of the encoded file are super huge.

[Image: 6sJEz.jpg]



or if i using "Average Bitrate 1-pass" mode, and setting a super high bitrate value, does it have the same effect of setting like this above?

RE: how to get the super best encode quality? no consider hard disk space - Selur - 17.04.2020

Practically:
  • x264->Base->Restriction Settings->AVC/Profile/Lebel -> High4:4:4/unrestricted
  • x264->Base->General Settings->Encoding mode ->1-pass constant quantizer
  • x264->Base->General Settings->Lossless
will create a lossless output (aside from filtering) and huge files.
RateControl, etc. will only influence the size of the output not the quality.
Information perservatin doesn't get better than lossless.

Cu Selur

RE: how to get the super best encode quality? no consider hard disk space - ssdde - 17.04.2020

(17.04.2020, 15:12)Selur Wrote: Practically:
  • x264->Base->Restriction Settings->AVC/Profile/Lebel -> High4:4:4/unrestricted
  • x264->Base->General Settings->Encoding mode ->1-pass constant quantizer
  • x264->Base->General Settings->Lossless
will create a lossless output (aside from filtering) and huge files.
RateControl, etc. will only influence the size of the output not the quality.
Information perservatin doesn't get better than lossless.

Cu Selur


you mean setting like this?

[Image: 6s2bL.jpg]

and if i want the best quality, but the smallest file size, which mode to use and how to set? thanks

RE: how to get the super best encode quality? no consider hard disk space - Selur - 17.04.2020

Yes, but applying the preset will only influence the file size a bit and the encoding time a lot.

RE: how to get the super best encode quality? no consider hard disk space - ssdde - 17.04.2020

(17.04.2020, 19:00)Selur Wrote: Yes, but applying the preset will only influence the file size a bit and the encoding time a lot.


if i want the best quality, but the smallest file size, which mode to use and how to set?

RE: how to get the super best encode quality? no consider hard disk space - Selur - 17.04.2020

If you want lossless quality and smallest file size then using preset placebo is fine (personally I would stop at 'very slow').
In general 'slow' and 'very slow' are the presets which are fine for me and if it's a simple reencode I usually will go for crf 16, but post folks are fine with 18-22.

Cu Selur

RE: how to get the super best encode quality? no consider hard disk space - ssdde - 17.04.2020

(17.04.2020, 20:36)Selur Wrote: If you want lossless quality and smallest file size then using preset placebo is fine (personally I would stop at 'very slow').
In general 'slow' and 'very slow' are the presets which are fine for me and if it's a simple reencode I usually will go for crf 16, but post folks are fine with 18-22.

Cu Selur


so if i always choose using CRF 15, preset: placebo, is it always a good choice? though the encoded file a little big.

how about AVC profile/level setting? always High, and over 4.2 or unrestricted?

RE: how to get the super best encode quality? no consider hard disk space - Selur - 17.04.2020

Quote:so if i always choose using CRF 15, preset: placebo, is it always a good choice?
There is no setting that is always a good choice.

Quote:how about AVC profile/level setting? always High, and over 4.2 or unrestricte
No. You should read up on what the profile and profiles are for and what they do.

Cu Selur