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