macfanr

#!/bin/sh

function random()
{
	duration=`./ffmpeg -i "${file}" 2>&1 | grep "Duration"| cut -d ' ' -f 4 | sed s/,// | sed 's@\..*@@g' | awk '{ split($1, A, ":"); split(A[3], B, "."); print 3600*A[1] + 60*A[2] + B[1] }'`
	# echo "$duration"
	min=15

	if [ $duration -gt $min ]
	then

macfanr

#!/bin/sh

if [ $# != 2 ]; then
	echo "usage: videoshot.sh /Users/danny/MyVideoDir /Users/danny/MyOutputDir"
	exit -1
fi

inputDir=$1
outputDir=$2
binaryEXE=./ffmpeg 

macfanr

hide:
defaults write com.apple.finder CreateDesktop -bool false && killall Finder

unhide:
defaults write com.apple.finder CreateDesktop -bool true && killall Finder

macfanr

 ps ax | grep ffmpeg

macfanr

1. install_name_tool -id new/install/name.dylib libso.dylib //change install name
2. install_name_tool -change old_name new_name libso.dylib //change dependence
3. otool -L libso.dylib  //display install name and dependence 
4. otool -D libso.dylib //display install name of libso.dylib

注意: 在xcode project中写脚本修改install name 会造成sandbox之后运行奔溃，原因在于copy的时候对dylib签名，然后又去修改dylib内容(change install name)，这样中破坏了之前的签名，所以会奔溃

macfanr

lldb ffmpeg -- -i file.mp4 -c:v libx264 -an ./out.mp4

macfanr

codesign -d --entitlements :- /Applications/Whatever.app/

macfanr

[[NSUserDefaults standardUserDefaults] setObject:@[@"en_US"] forKey:@"AppleLanguages"];
http://www.dyndns.org/cgi-bin/check_ip.cgi

macfanr

1. install meson
  brew install meson
2. set min version
  export CFLAGS="-mmacosx-version-min=10.9" before exe 'meson ./build_dir'

macfanr

tccutil reset ScreenCapture com.company.appname //reset warnning
tccutil reset All com.company.appname

sudo xattr -d com.apple.quarantine /Applications/xxxx.app //app is damaged, ...move to track