MattWoodhead

Programming Media Keys on the Ducky One 2 Skyline

To use media keys on the Ducky One 2 Skyline, you must record a macro to bind the media function to a hotkey combination, i.e. Fn plus some key.

Example

Important: In the instructions below, "Press X+Y+Z" means press and hold key X, press and hold key Y, press and hold key Z in that order, and then release all three.

As an example, to bind Fn+PgUp to the play/pause media function:

Use ffmpeg to stream video from a dahua 4300s to a file or files

You can use ffmpeg to directly pull frames off of a dahua 4300s at full resolution. May be a good alternative to pricey dvrs which likely cannot record at full resolution, may not work with the camera, or are prohibitevly expensive

Simple Stream to file

Simple stream to file. Full resolution

ffmpeg -loglevel debug -rtsp_transport tcp -i "rtsp://admin:[email protected]:554/live" \

-c copy -map 0 foo.mp4

	In [9]: import array
	In [10]: import pickle
	In [11]: double_array = array.array("i", range(10 ** 6))
	...: start_time = time.time()
	...: with open("array_temp.bin", "wb") as f:
	...: double_array.tofile(f)
	...: array_end_time = time.time() - start_time
	In [12]: int_list = list(range(10 ** 6))
	...: start_time = time.time()
	...: with open("list_temp.bin", "wb") as f:

	import operator
	from functools import reduce

	def nmea_checksum(sentence: str):
	"""
	This function checks the validity of an NMEA string using it's checksum
	"""
	sentence = sentence.strip("$\n")
	nmeadata, checksum = sentence.split("*", 1)
	calculated_checksum = reduce(operator.xor, (ord(s) for s in nmeadata), 0)

	import subprocess

	def explorer_on_file(url):
	""" opens a windows explorer window """
	subprocess.Popen(f'explorer /select,"{url}"')

	explorer_on_file(r"C:\Python\python.exe")

	#!/usr/bin/env python

	import sqlite3

	class dbopen(object):
	"""
	Simple CM for sqlite3 databases. Commits everything at exit.
	"""
	def __init__(self, path):
	self.path = path