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Hector Martin marcan

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@marcan
marcan / turnitdown.py
Last active July 18, 2023 16:41
Add Spotify volume normalization to Google Cast devices
#!/usr/bin/python3
#
# turnitdown.py - normalize Spotify playback volume on Google Cast devices
#
# Dependencies: pychromecast, spotipy
#
# Usage: register a Spotify app and put the credentials in the
# SPOTIPY_CLIENT_ID and SPOTIPY_CLIENT_SECRET environment variables.
# Then just launch the script. It will autodetect all cast devices
# on the network.
@marcan
marcan / m1racles-poc.c
Last active June 17, 2023 06:10
/*
* m1racle-poc: a basic proof of concept for the M1RACLES vulnerability in the Apple M1.
*
* This program allows you to read and write the state of the s3_5_c15_c10_1 CPU register.
*
* Please visit m1racles.com for more information.
*
* Licensed under the MIT license.
*/
@marcan
marcan / dcp_surfaces.txt
Last active May 6, 2023 03:51
0x000 1 isTiled
0x001 1 isTearingAllowed
0x002 1 isPremultiplied
0x003 4 planeCount
0x007 4 planeCount2
0x00b 4 pixelFormat
0x00f 4 YCbCrMatrix
0x013 1 transferFunctionIndex
13 == SDR
16 == HDR
@marcan
marcan / vortex_patch.py
Created December 22, 2018 10:09
Alesis Vortex Wireless 2 patch to send MIDI messages when pressing the ribbon bank buttons
from asm import *
blob = open("image.bin", "rb").read()
start_addr = 0x08003000
patch_start = start_addr + len(blob)
assert patch_start % 4 == 0
@marcan
marcan / dcp_colors.md
Last active January 1, 2023 09:58

Colorspaces

Tested with 10-bit mode on KDE on an M1 Pro.

  • 12:
    • 10-bit mode: 0..1023
    • 8-bit mode: 0..255
    • Likely native primaries
      • Actually seems to be P3?
@marcan
marcan / get_following_profiles.py
Created November 15, 2022 03:04
import tweepy, json, time, sys
auth = tweepy.OAuth1UserHandler(
<api keys here>
)
api = tweepy.API(auth)
d = json.loads(open(sys.argv[1]).read().split("=", 1)[1])
@marcan
marcan / smbloris.c
Last active November 22, 2022 08:32
SMBLoris attack proof of concept
/* SMBLoris attack proof-of-concept
*
* Copyright 2017 Hector Martin "marcan" <marcan@marcan.st>
*
* Licensed under the terms of the 2-clause BSD license.
*
* This is a proof of concept of a publicly disclosed vulnerability.
* Please do not go around randomly DoSing people with it.
*
* Tips: do not use your local IP as source, or if you do, use iptables to block
@marcan
marcan / memopri.py
Last active October 28, 2022 16:47
Casio MemoPri (メモプリ) printer client
#!/usr/bin/python3
import sys, socket, struct
import PIL, PIL.Image, PIL.ImageOps
DENSITY_MIN = 0
DENSITY_LIGHT = 1
DENSITY_NORMAL = 2
DENSITY_HEAVY = 3
DENSITY_MAX = 4
@marcan
marcan / patch-stats.sh
Last active October 24, 2022 12:25
Asahi Linux patch stats
#!/bin/sh
set -e
ROOT=remotes/origin
total=0
for i in $(git for-each-ref --format="%(refname:short)" refs/$ROOT/bits/); do
name="${i##*/}"
base=$ROOT/base
if git rev-parse --verify "$ROOT/bases/$name" &>/dev/null; then
@marcan
marcan / xt256img.py
Last active September 28, 2022 19:11
Image to xterm-256 Unicode block art converter
#!/usr/bin/env python3
from __future__ import print_function
import sys, argparse, codecs
from PIL import Image, ImagePalette
xterm256colors = [ # http://pln.jonas.me/xterm-colors
0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x80, 0x80, 0x00,
0x00, 0x00, 0x80, 0x80, 0x00, 0x80, 0x00, 0x80, 0x80, 0xc0, 0xc0, 0xc0,
0x80, 0x80, 0x80, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff, 0xff, 0x00,
0x00, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff,