Video codec opencv for mac osx how to#
Video codec opencv for mac osx mac os x#
Video codec opencv for mac osx download#

YouвЂ™ll get errors unless you have FFMPEG on your system Change вЂњCMAKE_OSX_SYSROOTвЂќ to /Developer/SDKs/MacOSX10.5.sdk.IвЂ™m looking for these static libraries to be backwards compatible to 32-bit systems and Leopard (and Processing runs in 32-bit only) so this is the architecture IвЂ™m using, but you might choose some different.

Add вЂњI386вЂі to CMAKE_OSX_ARCHITECTURES.

Uncheck вЂњBUILD_TESTSвЂќ (DonвЂ™t need these).

Uncheck вЂњBUILD_SHARED_LIBRARIESвЂќ (This is important, this will cause it to build the static libraries instead of shared!).

Uncheck вЂњBUILD_NEW_PYTHON_SUPPORTвЂќ (I donвЂ™t need python).HereвЂ™s where things get a little tricky and what you need to select can be an вЂњit dependsвЂќ on what exactly you are doing this for. Once you hit ok (and wait a minute or so), all of the build options will suddenly appear in the center of the CMake window. If you prefer to use an IDE, select вЂњXcode.вЂќ If youвЂ™d like to build it via terminal, select вЂњUnix Make files.вЂќ For the purposes of this tutorial, IвЂ™ll pick Xcode. YouвЂ™ll then be asked to specify a generator. вЂњWhere to build the binariesвЂќ - pick a directory where you want to build the shared libraries. вЂњWhere is the source codeвЂќ - browse to the directory where you downloaded OpenCV. When you run CMake, you have to select two directories. You can do all this with unix commands via terminal, but I found the Cmake Gui to be quite useful. Or use the command line to get it via SVN: cd ~/ wherever / you / want / to / put / it svn co https: ///svn/opencv/trunk So, if you need to build OpenCV from source to static libraries to link from an xcode project, here is how you do it.

Video codec opencv for mac osx how to#

We donвЂ™t want to say, here is some code you can use but before you can use it, take a whole day to figure out how to build opencv from the source and install it to this strange directory on your machine. In the case of building a Processing library (or compiling an OF or Cinder application), weвЂ™re looking to distribute something that does not require a separate install.

a files that are referenced by your xcode project. If you are an openFrameworks or Cinder user, you may have encountered static libraries. It is a library that is used for building a target application and essentially becomes embedded into that application. This is a good thing and saves you from having multiple copies of libraries, one for each application that uses say, openCV or FFMPEG or something like that.ДЄ static library is the opposite and cannot be shared. Most likely these files were вЂњdynamicвЂќ or вЂњsharedвЂќ library files, meaning they can be used by various applications on your computer.

Most likely, you built that project and installed some files to usr/lib or opt/local/lib, etc.

Video codec opencv for mac osx download#

LetвЂ™s say you are familiar with mac ports or homebrew or youвЂ™ve read some cryptic instructions online about how to download an open source project from a repository and built it via the command line.

Video codec opencv for mac osx mac os x#

ITP student Patrick Hebron and I have been working on a new Processing video library built on top of OpenCV (with the goal of no vdig on windows and better movie playback support all around.) This is all a bit obscure, but it was such a struggle to build stand-alone static libraries for OpenCV on Mac OS X (backwards compatible to 10.5) that we could link to via JNI that I thought I would document the process in case this comes up for anyone else in the future.ДЇirst of all, what is a static library and why should I care? How to Build OpenCV Static Libraries Mac OS X (10.5 compatible!)