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libsdl2_mixer/external/libvorbis-1.3.5/README
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********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2015 *
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* by the Xiph.org Foundation, http://www.xiph.org/ *
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* *
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********************************************************************
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Vorbis is a general purpose audio and music encoding format
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contemporary to MPEG-4's AAC and TwinVQ, the next generation beyond
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MPEG audio layer 3. Unlike the MPEG sponsored formats (and other
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proprietary formats such as RealAudio G2 and Windows' flavor of the
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month), the Vorbis CODEC specification belongs to the public domain.
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All the technical details are published and documented, and any
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software entity may make full use of the format without license
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fee, royalty or patent concerns.
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This package contains:
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* libvorbis, a BSD-style license software implementation of
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the Vorbis specification by the Xiph.Org Foundation
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(http://www.xiph.org/)
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* libvorbisfile, a BSD-style license convenience library
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built on Vorbis designed to simplify common uses
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* libvorbisenc, a BSD-style license library that provides a simple,
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programmatic encoding setup interface
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* example code making use of libogg, libvorbis, libvorbisfile and
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libvorbisenc
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WHAT'S HERE:
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This source distribution includes libvorbis and an example
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encoder/player to demonstrate use of libvorbis as well as
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documentation on the Ogg Vorbis audio coding format.
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You'll need libogg (distributed separately) to compile this library.
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A more comprehensive set of utilities is available in the vorbis-tools
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package.
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Directory:
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./lib The source for the libraries, a BSD-license implementation
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of the public domain Ogg Vorbis audio encoding format.
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./include Library API headers
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./debian Rules/spec files for building Debian .deb packages
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./doc Vorbis documentation
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./examples Example code illustrating programmatic use of libvorbis,
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libvorbisfile and libvorbisenc
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./mac Codewarrior project files and build tweaks for MacOS.
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./macosx Project files for MacOS X.
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./win32 Win32 projects files and build automation
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./vq Internal utilities for training/building new LSP/residue
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and auxiliary codebooks.
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CONTACT:
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The Ogg homepage is located at 'http://www.xiph.org/ogg/'.
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Vorbis's homepage is located at 'http://www.xiph.org/vorbis/'.
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Up to date technical documents, contact information, source code and
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pre-built utilities may be found there.
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The user website for Ogg Vorbis software and audio is http://vorbis.com/
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BUILDING FROM TRUNK:
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Development source is under subversion revision control at
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https://svn.xiph.org/trunk/vorbis/. You will also need the
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newest versions of autoconf, automake, libtool and pkg-config in
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order to compile Vorbis from development source. A configure script
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is provided for you in the source tarball distributions.
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[update or checkout latest source]
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./autogen.sh
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make
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and as root if desired:
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make install
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This will install the Vorbis libraries (static and shared) into
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/usr/local/lib, includes into /usr/local/include and API manpages
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(once we write some) into /usr/local/man.
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Documentation building requires xsltproc and pdfxmltex.
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BUILDING FROM TARBALL DISTRIBUTIONS:
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./configure
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make
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and optionally (as root):
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make install
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BUILDING RPMS:
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after normal configuring:
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make dist
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rpm -ta libvorbis-<version>.tar.gz
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BUILDING ON MACOS 9:
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Vorbis on MacOS 9 is built using Metroworks CodeWarrior. To build it,
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first verify that the Ogg libraries are already built following the
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instructions in the Ogg module README. Open vorbis/mac/libvorbis.mcp,
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switch to the "Targets" pane, select everything, and make the project.
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Do the same thing to build libvorbisenc.mcp, and libvorbisfile.mcp (in
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that order). In vorbis/mac/Output you will now have both debug and final
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versions of Vorbis shared libraries to link your projects against.
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To build a project using Ogg Vorbis, add access paths to your
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CodeWarrior project for the ogg/include, ogg/mac/Output,
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vorbis/include, and vorbis/mac/Output folders. Be sure that
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"interpret DOS and Unix paths" is turned on in your project; it can
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be found in the "access paths" pane in your project settings. Now
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simply add the shared libraries you need to your project (OggLib and
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VorbisLib at least) and #include "ogg/ogg.h" and "vorbis/codec.h"
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wherever you need to access Ogg and Vorbis functionality.
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