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3 <head>
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4 <title>libvorbis - function - vorbis_analysis_blockout</title>
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5 <link rel=stylesheet href="style.css" type="text/css">
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6 </head>
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7
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8 <body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
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9 <table border=0 width=100%>
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10 <tr>
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11 <td><p class=tiny>libvorbis documentation</p></td>
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12 <td align=right><p class=tiny>libvorbis version 1.3.2 - 20101101</p></td>
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13 </tr>
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14 </table>
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15
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16 <h1>vorbis_analysis_blockout</h1>
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17
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18 <p><i>declared in "vorbis/codec.h";</i></p>
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19
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20 <p>This fuction examines the available uncompressed data and tries to
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21 break it into appropriate sized blocks. It should be called in a loop
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22 after adding new data with vorbis_analysis_buffer()/vorbis_analysis_wrote()
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23 until it returns zero (need more data) or an negative value (error).
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24 </p>
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25 <p>
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26 Each block returned should be passed to vorbis_analysis() for transform
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27 and coding.
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28 </p>
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29
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30 <table border=0 color=black cellspacing=0 cellpadding=7>
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31 <tr bgcolor=#cccccc>
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32 <td>
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33 <pre><b>
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34 extern int vorbis_analysis_blockout(vorbis_dsp_state *v,vorbis_block *vb);
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35 </b></pre>
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36 </td>
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37 </tr>
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38 </table>
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39
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40 <h3>Parameters</h3>
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41 <dl>
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42 <dt><i>v</i></dt>
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43 <dd>Pointer to the vorbis_dsp_state representing the encoder.</dd>
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44 <dt><i>vb</i></dt>
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45 <dd>Pointer to a previously initialized vorbis_block object to hold the
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46 returned data.
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47 </dl>
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48
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49
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50 <h3>Return Values</h3>
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51 <ul>
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52 <li>1 for success when more blocks are available.</li>
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53 <li>0 for success when this is the last block available from the current input.</li>
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54 <li>negative values for failure:
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55 <ul>
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56 <li>OV_EINVAL - Invalid parameters.</li>
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57 <li>OV_EFAULT - Internal fault; indicates a bug or memory corruption.</li>
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58 <li>OV_EIMPL - Unimplemented; not supported by this version of the library.</li>
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59 </ul>
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60 </li>
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61
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62 </ul>
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63
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64 <br><br>
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65 <hr noshade>
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66 <table border=0 width=100%>
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67 <tr valign=top>
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68 <td><p class=tiny>copyright © 2010 Xiph.Org</p></td>
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69 <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/index.html">Ogg Vorbis</a></p></td>
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70 </tr><tr>
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71 <td><p class=tiny>libvorbis documentation</p></td>
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72 <td align=right><p class=tiny>libvorbis version 1.3.2 - 20101101</p></td>
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73 </tr>
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74 </table>
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75
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76
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77 </body>
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78
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79 </html>
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