简介

The OGG/Vorbis file format, as defined by http://www.vorbis.com/ and http://www.vorbis.com/, is a scheme for compressing audio streams by multiple factors with a minimum of quality loss. This extension adds Ogg Vorbis support to PHP's URL Wrappers. When used in read mode, compressed OGG/Vorbis data is expanded to raw PCM audio in one of six PCM encoding formats listed below.

需求

This extension requires PHP >= 4.3.0, libogg >= 1.0, and libvorbis >= 1.0.

运行时配置

本扩展模块在 php.ini 中未定义任何配置选项。

安装

oggvorbis is installed through the usual PECL package installation process.

• $ pear install oggvorbis

• Copy the resulting oggvorbis.so to an appropriate location and add extension=oggvorbis.so to your php.ini file or load it dynamically in your PHP script using dl('oggvorbis.so');

Context options

预定义常量

以下常量由本扩展模块定义，因此只有在本扩展模块被编译到 PHP 中，或者在运行时被动态加载后才有效。