I noticed a problem to set the value in the UI cell related to "Quantizer max" (x264-Quantization), I tried to restore the default profile thinking that it depended on this but there is the same behavior.
- I load the x264 hybrid default configuration
- I see that the quoted value is 81
- Change AVC Profile to (for example) None
- The value is now 51
- AVC Profile High replacement (previous value)
- The value remains at 51 and I cannot increase it even when reloading the configuration, I have to restart the program.
That's a bug,..
atm. Hybrid uses "51 + 6 * (depth - 8)"
but it should be:
Code:
#define QP_BD_OFFSET (6*(BIT_DEPTH-8))
#define QP_MAX_SPEC (51+QP_BD_OFFSET)
#define QP_MAX (QP_MAX_SPEC+18)
#define QP_MAX_MAX (51+2*6+18)
see:
https://github.com/cybertk/x264/blob/mas...n/common.h line 62+
-> Hybrid missed the '+18' for quantizer max and the default should be 69 since the default bit depth is 8 bit
Just stumpled over another problem,... '-ignore_editlist true' is only allowed for mov/mp4/3gp in ffmpeg.
Cu Selur
(04.12.2020, 19:50)Selur Wrote: [ -> ]That's a bug,..
atm. Hybrid uses "51 + 6 * (depth - 8)"
but it should be:
Code:
#define QP_BD_OFFSET (6*(BIT_DEPTH-8))
#define QP_MAX_SPEC (51+QP_BD_OFFSET)
#define QP_MAX (QP_MAX_SPEC+18)
#define QP_MAX_MAX (51+2*6+18)
-> Hybrid missed the '+18' for quantizer max and the default should be 69 since the default bit depth is 8 bit
So the max settable should be 81 as i previously set (without change AVC profile)?
(I send you a PM)
Quote:So the max settable should be 81 as i previously set (without change AVC profile)?
No.
The maximum quantizer you can use as quantizer is 51+(6*(BIT_DEPTH-8)).
The quantizer range allowed for the encoder is 51+(6*(BIT_DEPTH-8))+18.
-> Quantizer range max can only be 81 for 10bit bit depth.
Cu Selur
Nevermind, my bad, now it works
Looking at the debug output you selected '... (2nd pass)', which then isn't started since the stats file specified doesn't exist.
-> this is the correct behavior.
My guess is you wanted to use '.. (2pass)',..
Cu Selur
(04.12.2020, 21:19)Selur Wrote: [ -> ]Looking at the debug output you selected '... (2nd pass)', which then isn't started since the stats file specified doesn't exist.
-> this is the correct behavior.
My guess is you wanted to use '.. (2pass)',..
Cu Selur
Yes, sorry, I edited after i realized (and I even selected 3 times the same wrong option
)