- x264 setting(x264 설정)
This page explains the purpose and use of all x264 parameter. Parameters are ordered the same as their appearance in x264 --fullhelp.
See also x264 Stats Output, x264 Stats File and x264 Encoding Suggestions.
- Preset
A system designed to reduce the work needed to generate sane,
- Frame-type option
--keyint [default:250]
Sets the maximum interval between IDR-frames.
--min-keyint [Default : auto(MIN(--keyint / 10. --fps))
Sets the minimum length between IDR-frames. [IDR 프레임 사이의 최소 간격을 설정한다.]
See --keyint for an explanation of IDR-frames. Very small keyint ranges can cause "incorrect" IDR-frame placement (for example, a stobing scene.) This option
limits the minimum length in frames after IDR-frame before another can be placed.
The maximum allowed value for --min-keyint/2+1
Recommendation : [Default], or [1 x framerate].
--no-scenecut [Default : Not Set]
Completely disable adaptive I-frams decision.
--scenecut[Default:40]
Sets the threshold for I/IDR frame placement (read : scene change detection)
x264 calculates a metric for every for every frame to estimate how different it is from the previous frame. If the value is lower than scenecut, a 'scenecut' is detected.
An I-frame is placed if it has been less than --min-keyint frames since the last IDR-frame is placed. Higher values of scenecut increase the number of scenecuts
detected.
For more information on how the scenecut comparison works, see this doom9 thread.
Setting scenecut to 0 is equivalent to setting --no-scenecut
--intra-refresh
--slices [default : 0]
Sets the number of slices per frame, and forces rectangular slices. (Overriden by either --slice-max-size or --slice-max-mbs if they are set.)
If you are encoding for Blu-ray, set this to four. Otherwise, don't use this unless you know you need to.
--slice-max-size [Default : 0]
Sets the maximum slice size in bytes, including estimated NAL overhead.(Currently is not compatable width --interlaced.)
--slice-max-mb [Default : 0]
Sets the maximum slice size in macroblocks(Currently is not compatable width --interlaced.)