# Configuration Locations

# Ad-Hoc configuration

Jupyter provides a %config magic which you can use to configure Jupyter. Yuuno hooks into it so you can configure Yuuno using the same command.

%config will show you a list of config-sections.
%config <SECTION> shows you a list of configuration options for that section.
%config <SECTION>.<CONFIG> shows you the current value.
%config <SECTION>.<CONFIG>=<VALUE> allows you to change the value.

Here is a small list of potentially useful configuration values.

# Persistent configuration

Yuuno for IPython uses the configuration system provided by IPython. This means, the full configuration of Yuuno is exposed by the configuration system of IPython.

A more detailed explanation is given at the IPython Configuration documentation page.

You can use the configuration file to automatically load Yuuno at startup by adding the following at the bottom of the IPython config file:

c.InteractiveShellApp.extensions.append("yuuno")

Additionally, all configuration for Yuuno is located inside the Yuuno-namespace. For example, you can configure Yuuno to use a Point-resizer instead of Spline36 to convert your clips to rgb by appending this to the IPython config file.

c.Yuuno.VapourSynth.resizer = "resize.Point"

# Configuration values

# YuunoIPythonEnvironment

This section allows you to configure how Yuuno integrates into Jupyter.

# use_vsscript

Default: True
Startup Only VapourSynth >= R44

This setting configures if Yuuno can manage multiple cores. This allows Yuuno to behave more like VSEdit.

# no_env_wrap

Default: True
Debug Startup Only VapourSynth >= R44
This setting configures whether Yuuno-Clips are wrapped into their respective environment before showing. Depending on your Yuuno version, this configuration might cause errors when displaying any clips.

# VapourSynth

This section allows you to configure how VapourSynth and Yuuno work with each other.

# core_accept_lowercase

Default: False
VapourSynth <= R44

All plugin names are case-insensitive.
This option is ignored on VapourSynth R45 and onwards.

# core_add_cache

Default: True

Add a cache to all new VapourSynth-clips. It is never a good idea to set this to False

# core_max_cache_size

Default: Not set

Configures how large the inline caches should be.

# core_num_threads

Default: Not set

Configures how many worker-threads VapourSynth will use.

# merge_bands

Default: None
Debug

Configures how the RGB-planes are extracted by Yuuno.

# resizer

Default: 'resize.Spline36'

Configures which resizer is to be used for converting from the frame-colorspace to RGB24

# post_processor

Default: None

Set this to a function that takes an RGB24-clip and returns an RGB24-clip. This will be the last function called when converting your clip from your color-space to RGB.

# prefer_props

Default: True

When set to true, Yuuno will try to determine the correct YUV-Matrix by using the frame-props of the frame to display.

# yuv_matrix

Default: '709'

If Yuuno couldn't determine the correct YUV-Matrix from the frame-props, this value will be used as fallback.

# YuunoImageOutput

# icc_profile

Default: 'sRGB'

When outputting .png, Yuuno will insert a color-profile to ensure all browsers display the image the same way.

If it is set to sRGB it will use sRGB. Otherwise specifiy the path to an ICC Color-Profile.

# zlib_compression

Default: 6

Defines how good the .png-file will be compressed.

• 0 means no compression,
• 1 is the fastest compression
• and 9 the slowest.