release/src/router/libvorbis/doc/vorbisenc/changes.html

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  11 <td><p class=tiny>libvorbisenc documentation</p></td>
  12 <td align=right><p class=tiny>libvorbisenc release 1.1 - 20040709</p></td>
  13 </tr>
  14 </table>
  15
  16 <h1>Libvorbisenc API changes 1.0  through 1.1</h1>
  17
  18 This document describes API additions to libvorbisenc between release
  19 1.0 and 1.1.
  20
  21 <h2>1.0.1</h2>
  22
  23 The programming API and binary application ABI are unchanged and fully
  24 forward/backward compatible between release 1.0 and 1.0.1.  Libvorbis,
  25 libvorbisenc and libvorbisfile must match versions amongst themselves,
  26 however.
  27
  28 <h2>1.1</h2>
  29
  30 The binary ABI from release 1.0.1 to 1.1 is backward compatible;
  31 applications linked against libvorbis/libvorbisenc 1.0 and 1.0.1 will
  32 continue to function correctly when upgrading the libvorbis and
  33 libvorbisenc dynamic libraries without re-linking. <p>
  34
  35 Release 1.1 adds several possible requests to the libvorbisenc <a
  36 href="vorbis_encode_ctl.html">vorbis_encode_ctl()</a> call in order to
  37 reflect the shift to <a href="overview.html#BBR">bit-reservoir style
  38 bitrate management</a>. In addition, several <a
  39 href="vorbis_encode_ctl.html">vorbis_encode_ctl()</a> requests are
  40 deprecated (but functional) as they are redered semantically obsolete
  41 by the <a href="overview.html#BBR">new bitrate management</a>.<p>
  42
  43 <h3>Deprecated in 1.1</h3>
  44
  45 These calls are still available to older codebases to preserve
  46 compatability; the fields of the <a
  47 href="ovectl_ratemanage_arg.html">ovectl_ratemanage_arg</a> argument
  48 are mapped as closely as possible to the fields of the new <a
  49 href="ovectl_ratemanage2_arg.html">ovectl_ratemanage2_arg</a>
  50 structure.
  51
  52 <dl>
  53 <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE_GET">OV_ECTL_RATEMANAGE_GET</a>:<dd> Use <a
  54 href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_GET">OV_ECTL_RATEMANAGE2_GET</a>
  55 instead.
  56
  57
  58 <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE_SET">OV_ECTL_RATEMANAGE_SET</a>:<dd> Use <a
  59 href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_SET">OV_ECTL_RATEMANAGE2_SET</a>
  60 instead.
  61
  62 <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE_AVG">OV_ECTL_RATEMANAGE_AVG</a>:<dd> Use <a
  63 href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_SET">OV_ECTL_RATEMANAGE2_SET</a>
  64 instead.
  65
  66 <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE_HARD">OV_ECTL_RATEMANAGE_HARD</a>:<dd> Use <a
  67 href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_SET">OV_ECTL_RATEMANAGE2_SET</a>
  68 instead.
  69 </dl>
  70
  71 <h3>Newly added in 1.1</h3>
  72
  73 The following calls are added in 1.1 to semantically reflect movement
  74 to a <a href="overview.html#BBR">bit-reservoir-based bitrate
  75 management</a> scheme by introducing the <a
  76 href="ovectl_ratemanage2_arg.html">ovectl_ratemanage2_arg</a>
  77 structure in order to better represent the abilities of the bitrate
  78 manager.<p>
  79
  80 <dl>
  81 <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_GET">OV_ECTL_RATEMANAGE2_GET</a><dd>
  82
  83 Used to query the current state of bitrate management setup.
  84
  85 <dt><a href="vorbis_encode_ctl.html#OV_ECTL_RATEMANAGE2_SET">OV_ECTL_RATEMANAGE2_SET</a><dd>
  86
  87 Used to set or alter bitrate management settings.
  88 </dl>
  89
  90 <br><br>
  91 <hr noshade>
  92 <table border=0 width=100%>
  93 <tr valign=top>
  94 <td><p class=tiny>copyright &copy; 2000-2004 vorbis team</p></td>
  95 <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a><br><a href="mailto:team@vorbis.org">team@vorbis.org</a></p></td>
  96 </tr><tr>
  97 <td><p class=tiny>libvorbisenc documentation</p></td>
  98 <td align=right><p class=tiny>libvorbisenc release 1.1 - 20040709</p></td>
  99 </tr>
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