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A Qt C++ library for the Last.fm webservices
Home Page: http://www.last.fm
License: GNU General Public License v3.0
This project forked from lfranchi/liblastfm
A Qt C++ library for the Last.fm webservices
Home Page: http://www.last.fm
License: GNU General Public License v3.0
liblastfm ========= liblastfm is a collection of libraries to help you integrate Last.fm services into your rich desktop software. It is officially supported software developed by Last.fm staff. Max Howell http://twitter.com/mxcl Jono Cole http://twitter.com/jonocole Doug Mansell http://twitter.com/dougma Fork it: http://github.com/mxcl/liblastfm Dependencies ============ liblastfm dynamically links to: * Qt 4.4 http://www.qtsoftware.com * FFTW 3.2 Compiled with single precision http://www.fftw.org * Secret Rabbit code (aka libsamplerate) http://www.mega-nerd.com/SRC Additionally, to build you will need Ruby and GNU make (or Microsoft nmake). Mac OS X -------- sudo port selfupdate sudo port upgrade installed sudo port install libsamplerate fftw-3 qt4-mac-devel qt4-mac-devel will take a long time to build. So you may want to install the Trolltech binary package instead. MacPorts carries liblastfm now, so you may have downloaded this package simply to perform this next line: sudo port install liblastfm Linux/*NIX ---------- Do something like this: sudo apt-get install qt4-qmake pkg-config libsamplerate-dev libfftw3-dev ruby g++ libqt4-dev Additionally on Linux the configure process requires lsb_release. This is usually already installed (correct me if I'm wrong). Please note, we have only tested on Linux, but we think it'll work on all varieties of UNIX. If it doesn't, report the bug to mxcl on GitHub. Windows ------- Install Ruby. Install Visual Studio 2005 or higher. Install Qt. Install the Windows Server 2003 Platform SDK r2: http://www.microsoft.com/Downloads/details.aspx?FamilyID=484269e2-3b89-47e3-8eb7-1f2be6d7123a Set up your environment variables so all include paths and tools are available. Build and install FFTW and Secret Rabbit Code. Open a plain Windows shell (Cygwin will work but we don't recommend it), and see the next section. Installing liblastfm ==================== ruby configure --release --prefix /usr/local && make && sudo make install Packaging liblastfm ------------------- DESTDIR is supported. liblastfm builds to two dynamic libraries (liblastfm.so and liblastfm_fingerprint.so). liblastfm.so links only to Qt, but the fingerprinting part has additional dependencies. So ideally, you would distribute two packages. Using liblastfm =============== We have copied the API at http://last.fm/api onto C++, so like you find artist.getInfo there you will find an lastfm::Artist::getInfo function in our C++ API. lastfm is a namespace, Artist a class and getInfo a function. Thus the API is quite easy to learn. We suggest installing and checking the include/lastfm/* directory to find out all capabilities. The demos directory shows some further basic usage including Audioscrobbling and getting metadata for music via our fingerprinting technology. You need an API key from http://last.fm/api to use the webservice API. Your link line needs to include the following: -llastfm -lQtCore -lQtNetwork -lQtXml Radio ----- Please set an identifiable UserAgent on your HTTP requests for the actual MP3s, in extreme cases we'll contact you directly and demand you do so :P HTTP & Networking ----------------- You can specify your own QNetworkAccessManager derived class for liblastfm to use with lastfm::setNetworkAccessManager(). Our default is pretty good though, auto-determining proxy settings on Windows and OS X for instance. Using liblastfm_fingerprint =========================== The liblastfm_fingerprint library does not decode audio files. We anticipate that Phonon will soon do that work for us. In the meantime, sample *Source files for MP3, Ogg Vorbis, FLAC, and AAC/MP4 are available in src/fingerprint/contrib. If you want to fingerprint files or get metadata suggestions, you either need to add the *Source files to your project, or implement your own. Development =========== Public Headers -------------- 1. Header guards should be prefixed with LASTFM, eg. LASTFM_WS_REPLY_H 2. #includes should be to the system path eg. #include <lastfm/Scrobbler> 3. Don't make a header public unless it is absolutely required! 4. To make the header public edit the headers.files line in the pro file Private Headers --------------- 1. For consistency and to make it more obvious it is a private header, don't prefix the header guard with LASTFM 2. #includes should be the full source tree path, eg. #include "../core/UrlBuilder.h"
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