William Poetra Yoga wpyoga

## gist:ed239bdfcfa6c7ee446494aeb36e1b62
socat -d -d pty,raw,echo=0 pty,raw,echo=0

## gist:0ff19ff22d8a88f076a0cf7c9f6bfeb9
PS1='$ '
echo -e '\033]0; \007'

## gist:2eda6781ba5e4dc23e13b6d652208b14
"C_Cpp.clang_format_fallbackStyle": "{ BasedOnStyle: Google, IndentWidth: 4, ColumnLimit: 0 }"

## gist:b8796d0366d5e755a56873dcf1028701
ip link add name A type veth peer name B
ip addr add 10.0.0.1/24 dev A
ip link set A up

ip netns add myns
ip link set B netns myns
ip netns exec myns ip addr add 10.0.0.2/24 dev B
ip netns exec myns ip link set B up

## time_convert.c
#define _XOPEN_SOURCE
#include <time.h>
#include <stdio.h>

// Simple-task-30036777
int main() {
  char buf[] = "2021-04-28T21:29:10.279Z";
  int len;
  struct tm tmbuf;
  char *c = NULL;

## gist:cbe7b20d1bc6e16491075c1d3168501d
# image.png: image file
# video.mp4: video file
# -t 5: video duration in seconds
# -crf 20: (optional) compression, higher value higher compression rate and lower video quality
# using -crf 0 (lossless) sometimes leads to glitches, use -crf 1 for best results

# note: the order of the arguments matter
ffmpeg -loop 1 -i image.png -t 5 -crf 20 -vcodec libx264 -pix_fmt yuv420p video.mp4

## gist:a35e9e0416da7ebcffd3dfd509eb2e24
# -lossless
# create a lossless image
# you can use '-z 9' to really make a small image,
# but my tests show that it only produces around 1% better compression rate,
# with much longer compression times
#
# -resize 1080 1920
# (optional) resize the image

cwebp -lossless -resize 1080 1920 image.png -o image.webp

## gist:80581ffe82ed6d007f5c99e88e003d83
ffmpeg_concat() (
  test "$#" -lt 1 && return
  LISTFILE="`mktemp -p .`"
  printf "file '%s'\n" "$@" > "$LISTFILE"
  ffmpeg -f concat -safe 0 -i "$LISTFILE" -c copy concat.mp4
  rm "$LISTFILE"
)

# to split video into multiple segments based on key frames

## gist:b984279eb717d0143e252d23adcfe535
# -crop 2250x1518+0+0
# crop the image to 2250x1518
# without this, the image will be resized to
# - 800x541, if using the geometry transform
# - 799x540, if using the resize transform
#
# +repage
# reset the virtual canvas to the image size, which has been cropped
#
# -geometry 800

## gist:ad8c8cd047b1f80d7129ef217e970fcb
# Replace 'adb' with the desired process name
ps -o pid,args `pidof adb`
	ip link add name A type veth peer name B
	ip addr add 10.0.0.1/24 dev A
	ip link set A up

	ip netns add myns
	ip link set B netns myns
	ip netns exec myns ip addr add 10.0.0.2/24 dev B
	ip netns exec myns ip link set B up
	#define _XOPEN_SOURCE
	#include <time.h>
	#include <stdio.h>

	// Simple-task-30036777
	int main() {
	char buf[] = "2021-04-28T21:29:10.279Z";
	int len;
	struct tm tmbuf;
	char *c = NULL;
	# image.png: image file
	# video.mp4: video file
	# -t 5: video duration in seconds
	# -crf 20: (optional) compression, higher value higher compression rate and lower video quality
	# using -crf 0 (lossless) sometimes leads to glitches, use -crf 1 for best results

	# note: the order of the arguments matter
	ffmpeg -loop 1 -i image.png -t 5 -crf 20 -vcodec libx264 -pix_fmt yuv420p video.mp4
	# -lossless
	# create a lossless image
	# you can use '-z 9' to really make a small image,
	# but my tests show that it only produces around 1% better compression rate,
	# with much longer compression times
	#
	# -resize 1080 1920
	# (optional) resize the image

	cwebp -lossless -resize 1080 1920 image.png -o image.webp
	ffmpeg_concat() (
	test "$#" -lt 1 && return
	LISTFILE="`mktemp -p .`"
	printf "file '%s'\n" "$@" > "$LISTFILE"
	ffmpeg -f concat -safe 0 -i "$LISTFILE" -c copy concat.mp4
	rm "$LISTFILE"
	)

	# to split video into multiple segments based on key frames
	# -crop 2250x1518+0+0
	# crop the image to 2250x1518
	# without this, the image will be resized to
	# - 800x541, if using the geometry transform
	# - 799x540, if using the resize transform
	#
	# +repage
	# reset the virtual canvas to the image size, which has been cropped
	#
	# -geometry 800
	# Replace 'adb' with the desired process name
	ps -o pid,args `pidof adb`