chore(docs): fix docs and add changelog entry

CHANGELOG.md

@@ -10,6 +10,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 (unreleased)=
 ## [Unreleased](https://github.com/jeertmans/manim-slides/compare/v5.4.2...HEAD)
 
+(unreleased-added)=
+### Added
+
+- Added `max_duration_before_split_reverse` and `num_processes` class variables.
+  [#439](https://github.com/jeertmans/manim-slides/pull/439)
+
+(unreleased-changed)=
+### Changed
+
+- Automatically split large video animations into smaller chunks
+  for lightweight (and potentially faster) reversed animations generation.
+  [#439](https://github.com/jeertmans/manim-slides/pull/439)
+
 (v5.4.2)=
 ## [v5.4.2](https://github.com/jeertmans/manim-slides/compare/v5.4.1...v5.4.2)
 

manim_slides/slide/manim.py

@@ -20,31 +20,24 @@ class Slide(BaseSlide, Scene):  # type: ignore[misc]
     :cvar bool disable_caching: :data:`False`: Whether to disable the use of
         cached animation files.
     :cvar bool flush_cache: :data:`False`: Whether to flush the cache.
-
         Unlike with Manim, flushing is performed before rendering.
     :cvar bool skip_reversing: :data:`False`: Whether to generate reversed animations.
-
         If set to :data:`False`, and no cached reversed animation
         exists (or caching is disabled) for a given slide,
         then the reversed animation will be simply the same
         as the original one, i.e., ``rev_file = file``,
         for the current slide config.
-    :cvar float|None max_duration_before_split_reverse: :data:`4.0`:
-        Maximum duration before of a video animation before it is
-        reversed by splitting the file into smaller chunks.
-
+    :cvar typing.Optional[float] max_duration_before_split_reverse: :data:`4.0`: Maximum duration
+        before of a video animation before it is reversed by splitting the file into smaller chunks.
         Generating reversed animations can require an important amount of
         memory (because the whole video needs to be kept in memory),
         and splitting the video into multiple chunks usually speeds
         up the process (because it can be done in parallel) while taking
         less memory.
-
         Set this to :data:`None` to disable splitting the file into chunks.
-    :cvar int|None num_processes :data:`None`:
-        Number of processes to use for parallelizable operations.
-
-        Defaults to :data:`None`, the number of available logical processes.
-
+    :cvar typing.Optional[int] num_processes: :data:`None`: Number of processes
+        to use for parallelizable operations.
+        If :data:`None`, defaults to :func:`os.process_cpu_count`.
         This is currently used when generating reversed animations, and can
         increase memory consumption.
     """