astiob’s gists

astiob / crossfades.py

Created May 30, 2024 20:42

VapourSynth script for converting interlaced fades over telecined content to pure-progressive fades

	import vapoursynth as vs
	from vsdeinterlace.combing import vinverse


	__all__ = (
	'smooth_stable_fade',
	'unfade_unique_into_repeating',
	'unfade_repeating_into_unique',
	'fade_unique_into_repeating',
	'fade_repeating_into_unique',

astiob / base.base36

Created January 25, 2019 22:32

bn.js computes incorrect new BN(base, 36).sqr().sqr().sqr()

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

astiob / bit.c

Created April 23, 2016 12:08

Dynamic [i, n] range maximum query

	T range_max(const T *binary_indexed_tree, size_t size, size_t first)
	{
	T value = T_MIN;
	for (; first < size; first \|= first + 1)
	if (value < binary_indexed_tree[first])
	value = binary_indexed_tree[first];
	return value;
	}

	void increase(T *binary_indexed_tree, size_t pos, T value)

astiob / 0_id.log

Last active April 13, 2016 21:07

mpv build log on Raspberry Pi 3

	pi@raspberrypi:~/mpv-build $ uname -a
	Linux raspberrypi 4.1.19-v7+ #858 SMP Tue Mar 15 15:56:00 GMT 2016 armv7l GNU/Linux
	pi@raspberrypi:~/mpv-build $ gcc --version
	gcc (Raspbian 4.9.2-10) 4.9.2
	Copyright (C) 2014 Free Software Foundation, Inc.
	This is free software; see the source for copying conditions. There is NO
	warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

astiob / bit.c

Last active September 5, 2024 18:25

Dynamic range maximum query

	saidx_t range_max(const saidx_t *restrict data,
	const saidx_t *restrict left_tree,
	const saidx_t *restrict right_tree,
	size_t first, size_t last)
	{
	assert(first < last);
	saidx_t value = -1;

	for (; (first \| first + 1) < last; first \|= first + 1)
	if (value < right_tree[first])

astiob / libass-asm-test.ass

Last active October 10, 2015 11:07

libass assembler code sanity check

	[Script Info]
	ScriptType: v4.00+
	PlayResX: 1280
	PlayResY: 720
	ScaledBorderAndShadow: yes
	YCbCr Matrix: None

	[V4+ Styles]
	Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
	Style: Default,Arial,18,&H00000000,&H00000000,&H00000000,&H00000000,-1,0,0,0,100,100,0,0,1,0,0,2,0,0,50,1

astiob / render_subtitles_rgb24.c

Last active August 29, 2015 14:13

Code fragment blending ASS_Images onto an RGB surface

	#include <stddef.h>
	#include <stdint.h>
	#include <stdlib.h>

	#define dither() (rand() / (RAND_MAX + 1.0L))

	typedef struct
	{
	size_t w, h;
	struct rgb24_pixel { uint8_t r, g, b; } samples[];

astiob / vsfilter-fight.ass

Last active August 29, 2015 14:01

	[Script Info]
	ScriptType: v4.00+
	PlayResX: 1280
	PlayResY: 720
	ScaledBorderAndShadow: yes
	YCbCr Matrix: None

	[V4+ Styles]
	Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
	Style: Default,Arial,60,&H000000FF,&HFF0000FF,&H00000000,&H000000FF,0,0,0,0,100,100,0,0,1,0,0,5,10,10,20,1

astiob / 0001-MSVC-ilog2.patch

Created April 27, 2014 00:30

11rcombs/libass/rasterizer: MSVC ilog2

	From 3183dff76442ac06e4fb19fd2f7be99a34d18522 Mon Sep 17 00:00:00 2001
	From: Oleg Oshmyan <[email protected]>
	Date: Sun, 27 Apr 2014 01:28:59 +0100
	Subject: [PATCH] MSVC ilog2

	---
	libass/ass_rasterizer.c \| 9 +++++++++
	1 file changed, 9 insertions(+)

	diff --git a/libass/ass_rasterizer.c b/libass/ass_rasterizer.c

astiob / be.ass

Last active August 29, 2015 13:57

ASS blur tests

	[Script Info]
	ScriptType: v4.00+
	WrapStyle: 0
	PlayResX: 1280
	PlayResY: 320
	ScaledBorderAndShadow: yes
	YCbCr Matrix: TV.709

	[V4+ Styles]
	Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding

Oleg Oshmyan astiob