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1 <html>
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2
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3 <head>
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4 <title>libogg - Encoding</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>libogg documentation</p></td>
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12 <td align=right><p class=tiny>libogg release 1.3.0 - 20110804</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>Encoding</h1>
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17 <p>Libogg contains a set of functions used in the encoding process.
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18 <p>
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19 All the <b>libogg</b> specific functions are declared in "ogg/ogg.h".
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20 <p>
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21 <p>When encoding, the encoding engine will output raw packets which must be placed into an Ogg bitstream.
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22 <p>Raw packets are inserted into the stream, and an <a href="ogg_page.html">ogg_page</a> is output when enough packets have been written to create a full page. The pages output are pointers to buffered packet segments, and can then be written out and saved as an ogg stream.
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23 <p>There are a couple of basic steps:
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24 <ul>
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25 <li>Use the encoding engine to produce a raw packet of data.
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26 <li>Call <a href="ogg_stream_packetin.html">ogg_stream_packetin</a> to submit a raw packet to the stream.
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27 <li>Use <a href="ogg_stream_pageout.html">ogg_stream_pageout</a> to output a page, if enough data has been submitted. Otherwise, continue submitting data.
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28 </ul>
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29 <br><br>
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30
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31 <table border=1 color=black width=50% cellspacing=0 cellpadding=7>
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32 <tr bgcolor=#cccccc>
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33 <td><b>function</b></td>
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34 <td><b>purpose</b></td>
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35 </tr>
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36 <tr valign=top>
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37 <td><a href="ogg_stream_packetin.html">ogg_stream_packetin</a></td>
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38 <td>Submits a raw packet to the streaming layer, so that it can be formed into a page.</td>
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39 </tr>
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40 <tr valign=top>
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41 <td><a href="ogg_stream_iovecin.html">ogg_stream_iovecin</a></td>
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42 <td>iovec version of ogg_stream_packetin() above.</td>
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43 </tr>
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44 <tr valign=top>
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45 <td><a href="ogg_stream_pageout.html">ogg_stream_pageout</a></td>
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46 <td>Outputs a completed page if the stream contains enough packets to form a full page.<td>
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47 </tr>
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48 <tr valign=top>
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49 <td><a href="ogg_stream_pageout_fill.html">ogg_stream_pageout_fill</a></td>
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50 <td>Similar to ogg_stream_pageout(), but specifies a page spill threshold in bytes.
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51 </tr>
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52 <tr valign=top>
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53 <td><a href="ogg_stream_flush.html">ogg_stream_flush</a></td>
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54 <td>Forces any remaining packets in the stream to be returned as a page of any size.<td>
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55 </tr>
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56 <tr valign=top>
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57 <td><a href="ogg_stream_flush_fill.html">ogg_stream_flush_fill</a></td>
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58 <td>Similar to ogg_stream_flush(), but specifies a page spill threshold in bytes.<td>
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59 </tr>
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60 </table>
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61
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62 <br><br>
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63 <hr noshade>
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64 <table border=0 width=100%>
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65 <tr valign=top>
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66 <td><p class=tiny>copyright © 2000-2011 Xiph.Org</p></td>
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67 <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
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68 </tr><tr>
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69 <td><p class=tiny>libogg documentation</p></td>
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70 <td align=right><p class=tiny>libogg release 1.3.0 - 20110804</p></td>
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71 </tr>
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72 </table>
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73
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74 </body>
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75
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76 </html>
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