Renaming XCode projects

From (http://aplus.rs/cocoa/how-to-rename-project-in-xcode-3x)

Copy/rename the folder into new name

Get inside the new folder and rename the .pch and .xcodeproj files

Delete the build folder

Open .xcodeproj file in text editor, like TextMate or TextWrangler. That’s actually a folder, which contains 4 files (you can also right-click and do Show package contents, which will reveal the files)

Open project.pbxproj in text editor and replace all instances of the old name with the new name

Load the project file in XCode, do Build/Clean all targets

convert aif to mp3

ffmpeg -i some.aif -f mp3 -ab 192 -ar 44100 some.mp3

emacs and etags

create tags file:

find . -name '*.cpp' -o -name '*.h' -o -name '*.c' | xargs etags -a -o tags

M-. go to symbol def
M-0 M-. next
M-* return
M-X tags-search
M-, next match

Alpha compositing with rmagick

Source

Destination

Result

Ruby source:

require 'rubygems'

require 'RMagick'

include Magick

dst = Image.read("dst.png")[0]

src = Image.read("src.png")[0]

result = dst.composite(src, 0, 0, OverCompositeOp)

result.write("result.png")

result.display

exit

mpeg to mov

recently needed to convert an mpg to mov. quickest way was using ffmpeg:

ffmpeg -i input.mpg -sameq output.mov

helpful post

iTunes connect rejects binaries with spaces

got "binary file names cannot contain spaces" when submitting an app to iTunes connect. rename the bundle, re-zip, and resubmit.

useful post

visibility warnings at link time

had loads of warning concerning different visibility such as:

ld: warning: __gnu_cxx::__normal_iterator, std::allocator >*, std::vector, std::allocator >, std::allocator, std::allocator > > > >::__normal_iterator(std::basic_string, std::allocator >* const&)has different visibility (default) in /builds/Debug-iphonesimulator/libX3N0_XPlat_Basic.a(X3N0_URLExtractor.o) and (hidden) in /builds/X3N0_iPhone_Band.build/Debug-iphonesimulator/X3N0_iPhone_Band_SOMETARGER.build/Objects-normal/i386/X3N0_MusicPlayerViewController.o

on xcode:

set "Symbols hidden by default" - GCC_SYMBOLS_PRIVATE_EXTERN to YES