vorbis/doc/vorbisenc/ovectl_ratemanage2_arg.html

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   4 <title>vorbis - datatype - ovectl_ratemanage2_arg</title>
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  11 <td><p class=tiny>libvorbisenc documentation</p></td>
  12 <td align=right><p class=tiny>libvorbisenc version 1.3.2 - 20101101</p></td>
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  14 </table>
  15
  16 <h1>ovectl_ratemanage2_arg</h1>
  17
  18 <p><i>declared in "vorbis/vorbisenc.h"</i></p>
  19
  20 <p>
  21
  22 The ovectl_ratemanage2_arg structure is used with <a
  23 href="vorbis_encode_ctl.html">vorbis_encode_ctl()</a> and the OV_ECTL_RATEMANAGE2_GET and
  24 OV_ECTL_RATEMANAGE2_SET  calls in order to query and modify specifics
  25 of the encoder's bitrate management configuration.
  26
  27 <p>
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  32 <pre><b>struct ovectl_ratemanage2_arg {
  33   int    management_active;
  34
  35   long   bitrate_limit_min_kbps;
  36   long   bitrate_limit_max_kbps;
  37   long   bitrate_limit_reservoir_bits;
  38   double bitrate_limit_reservoir_bias;
  39
  40   long   bitrate_average_kbps;
  41   double bitrate_average_damping;
  42 };</b></pre>
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  47 <h3>Relevant Struct Members</h3>
  48 <dl>
  49 <dt><i>management_active</i></dt>
  50 <dd>nonzero if bitrate management is active</dd>
  51
  52 <dt><i>bitrate_limit_min_kbps</i></dt>
  53 <dd>Lower allowed bitrate limit in kilobits per second</dd>
  54 <dt><i>bitrate_limit_max_kbps</i></dt>
  55 <dd>Upper allowed bitrate limit in kilobits per second</dd>
  56 <dt><i>bitrate_limit_reservoir_bits</i></dt>
  57 <dd>Size of the bitrate reservoir in bits</dd>
  58 <dt><i>bitrate_limit_reservoir_bias</i></dt>
  59
  60 <dd>Regulates the bitrate reservoir's preferred fill level in a range
  61 from 0.0 to 1.0; 0.0 tries to bank bits to buffer against future
  62 bitrate spikes, 1.0 buffers against future sudden drops in
  63 instantaneous bitrate.  Default is 0.1 </dd>
  64
  65 <dt><i>bitrate_average_kbps</i></dt>
  66 <dd>Average bitrate setting in kilobits per second</dd>
  67
  68 <dt><i>bitrate_average_damping</i></dt> <dd>Slew rate limit setting
  69 for average bitrate adjustment; sets the minimum time in seconds the
  70 bitrate tracker may swing from one extreme to the other when boosting
  71 or damping average bitrate.</dd>
  72
  73
  74
  75 </dl>
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  77
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  82 <td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
  83 <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/index.html">Ogg Vorbis</a></p></td>
  84 </tr><tr>
  85 <td><p class=tiny>libvorbisenc documentation</p></td>
  86 <td align=right><p class=tiny>libvorbisenc version 1.3.2 - 20101101</p></td>
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