karosLi

ffprobe -v quiet -print_format json -show_format -show_streams "lolwut.mp4" > "lolwut.mp4.json"

karosLi

/*
 * The MIT License
 *
 * Copyright (c) 2011 Paul Solt, PaulSolt@gmail.com
 * Modifications Copyright (c) 2011 Joe Osborn, josborn@universalhappymaker.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

karosLi

Notes

Create a command line target in xcode either in Swift or Obj-C. add a metal file to the project and copy and paste the respective code into each file.

karosLi

SDK = xcrun -sdk macosx

all: compute.metallib compute

compute.metallib: Compute.metal
	# Metal intermediate representation (.air)
	$(SDK) metal -c -Wall -Wextra -std=osx-metal2.0 -o /tmp/Compute.air $^
	# Metal library (.metallib)
	$(SDK) metallib -o $@ /tmp/Compute.air

karosLi

Understanding UIViewController Rotation

Problem

To enable the rotation of a single view controller used to display the preview of Images/Videos. It is intuitive to allow user to rotate there device and screen changes accordingly, so it feels pleasant. But to achieve this, we need to enable the (almost) all Supported Device orientations.

Ex: `Portrait`, `LandscapeLeft`, `LandscapeRight`.

karosLi

To remove a submodule you need to:

• Delete the relevant section from the .gitmodules file.
• Stage the .gitmodules changes git add .gitmodules
• Delete the relevant section from .git/config.
• Run git rm --cached path_to_submodule (no trailing slash).
• Run rm -rf .git/modules/path_to_submodule (no trailing slash).
• Commit git commit -m "Removed submodule "
• Delete the now untracked submodule files rm -rf path_to_submodule

karosLi

#!/bin/sh
LIB_NAME=ffi
TARGET_NAME=libffi-iOS
PROJECT=libffi.xcodeproj


CONFIGURATION=Release
DEVICE=iphoneos
SIMULATOR=iphonesimulator
FAT=universal

karosLi

# Merge Script
 
# 1
# Set bash script to exit immediately if any commands fail.
set -e
 
# 2
# Setup some constants for use later on.
PROJECT=WPFixDemo.xcodeproj
FRAMEWORK_NAME=WPFix

karosLi

# Merge Script
 
# 1
# Set bash script to exit immediately if any commands fail.
set -e
 
# 2
# Setup some constants for use later on.
FRAMEWORK_NAME="${PROJECT_NAME}"
 

karosLi

GLKVector3 GLKMathProject(GLKVector3 object, GLKMatrix4 model, GLKMatrix4 projection, int *viewport) {
    assert(viewport);
    
    GLKVector4 v4 = GLKVector4MakeWithVector3(object, 1.0);
    GLKVector4 v = GLKMatrix4MultiplyVector4(model, v4);
    v = GLKMatrix4MultiplyVector4(projection, v);
    
    v.v[3] = 1.0/v.v[3];
    v.v[0] *= v.v[3];
    v.v[1] *= v.v[3];