Chris@1: <html> Chris@1: Chris@1: <head> Chris@1: <title>libvorbisenc - Documentation</title> Chris@1: <link rel=stylesheet href="style.css" type="text/css"> Chris@1: </head> Chris@1: Chris@1: <body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff"> Chris@1: <table border=0 width=100%> Chris@1: <tr> Chris@1: <td><p class=tiny>libvorbisenc documentation</p></td> Chris@1: <td align=right><p class=tiny>libvorbisenc version 1.3.2 - 20101101</p></td> Chris@1: </tr> Chris@1: </table> Chris@1: Chris@1: <h1>Libvorbisenc API changes 1.0 through 1.1</h1> Chris@1: Chris@1: This document describes API additions to libvorbisenc between release Chris@1: 1.0 and 1.1. Chris@1: Chris@1: <h2>1.0.1</h2> Chris@1: Chris@1: The programming API and binary application ABI are unchanged and fully Chris@1: forward/backward compatible between release 1.0 and 1.0.1. Libvorbis, Chris@1: libvorbisenc and libvorbisfile must match versions amongst themselves, Chris@1: however. Chris@1: Chris@1: <h2>1.1</h2> Chris@1: Chris@1: The binary ABI from release 1.0.1 to 1.1 is backward compatible; Chris@1: applications linked against libvorbis/libvorbisenc 1.0 and 1.0.1 will Chris@1: continue to function correctly when upgrading the libvorbis and Chris@1: libvorbisenc dynamic libraries without re-linking. <p> Chris@1: Chris@1: Release 1.1 adds several possible requests to the libvorbisenc <a Chris@1: href="vorbis_encode_ctl.html">vorbis_encode_ctl()</a> call in order to Chris@1: reflect the shift to <a href="overview.html#BBR">bit-reservoir style Chris@1: bitrate management</a>. In addition, several <a Chris@1: href="vorbis_encode_ctl.html">vorbis_encode_ctl()</a> requests are Chris@1: deprecated (but functional) as they are redered semantically obsolete Chris@1: by the <a href="overview.html#BBR">new bitrate management</a>.<p> Chris@1: Chris@1: <h3>Deprecated in 1.1</h3> Chris@1: Chris@1: These calls are still available to older codebases to preserve Chris@1: compatability; the fields of the <a Chris@1: href="ovectl_ratemanage_arg.html">ovectl_ratemanage_arg</a> argument Chris@1: are mapped as closely as possible to the fields of the new <a Chris@1: href="ovectl_ratemanage2_arg.html">ovectl_ratemanage2_arg</a> Chris@1: structure. Chris@1: Chris@1: <dl> Chris@1: <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE_GET">OV_ECTL_RATEMANAGE_GET</a>:<dd> Use <a Chris@1: href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_GET">OV_ECTL_RATEMANAGE2_GET</a> Chris@1: instead. Chris@1: Chris@1: Chris@1: <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE_SET">OV_ECTL_RATEMANAGE_SET</a>:<dd> Use <a Chris@1: href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_SET">OV_ECTL_RATEMANAGE2_SET</a> Chris@1: instead. Chris@1: Chris@1: <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE_AVG">OV_ECTL_RATEMANAGE_AVG</a>:<dd> Use <a Chris@1: href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_SET">OV_ECTL_RATEMANAGE2_SET</a> Chris@1: instead. Chris@1: Chris@1: <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE_HARD">OV_ECTL_RATEMANAGE_HARD</a>:<dd> Use <a Chris@1: href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_SET">OV_ECTL_RATEMANAGE2_SET</a> Chris@1: instead. Chris@1: </dl> Chris@1: Chris@1: <h3>Newly added in 1.1</h3> Chris@1: Chris@1: The following calls are added in 1.1 to semantically reflect movement Chris@1: to a <a href="overview.html#BBR">bit-reservoir-based bitrate Chris@1: management</a> scheme by introducing the <a Chris@1: href="ovectl_ratemanage2_arg.html">ovectl_ratemanage2_arg</a> Chris@1: structure in order to better represent the abilities of the bitrate Chris@1: manager.<p> Chris@1: Chris@1: <dl> Chris@1: <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_GET">OV_ECTL_RATEMANAGE2_GET</a><dd> Chris@1: Chris@1: Used to query the current state of bitrate management setup. Chris@1: Chris@1: <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_SET">OV_ECTL_RATEMANAGE2_SET</a><dd> Chris@1: Chris@1: Used to set or alter bitrate management settings. Chris@1: </dl> Chris@1: Chris@1: <br><br> Chris@1: <hr noshade> Chris@1: <table border=0 width=100%> Chris@1: <tr valign=top> Chris@1: <td><p class=tiny>copyright © 2000-2010 Xiph.Org</p></td> Chris@1: <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td> Chris@1: </tr><tr> Chris@1: <td><p class=tiny>libvorbisenc documentation</p></td> Chris@1: <td align=right><p class=tiny>libvorbisenc version 1.3.2 - 20101101</p></td> Chris@1: </tr> Chris@1: </table> Chris@1: Chris@1: </body> Chris@1: Chris@1: </html>