ogg/doc/libogg/ogg_stream_pageout_fill.html

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   4 <title>libogg - function - ogg_stream_pageout_fill</title>
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  11 <td><p class=tiny>libogg documentation</p></td>
  12 <td align=right><p class=tiny>libogg release 1.3.3 - 20171107</p></td>
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  15
  16 <h1>ogg_stream_pageout_fill</h1>
  17
  18 <p><i>declared in "ogg/ogg.h";</i></p>
  19
  20 <p>This function forms packets into pages, similar
  21 to <a href="ogg_stream_pageout.html">ogg_stream_pageout()</a>, but
  22 allows applications to explicitly request a specific page spill
  23 size.</p>
  24
  25 <p>In a typical encoding situation, this would be called after using <a
  26 href="ogg_stream_packetin.html">ogg_stream_packetin()</a> to submit
  27 data packets to the bitstream. Internally, this function assembles
  28 the accumulated packet bodies into an Ogg page suitable for writing
  29 to a stream. The function is typically called in a loop until there
  30 are no more pages ready for output.</p>
  31
  32 <p>This function will return a page when at least four packets have
  33 been accumulated and accumulated packet data meets or exceeds the
  34 specified number of bytes, <b>and/or</b> when the accumulated packet
  35 data meets/exceeds the maximum page size regardless of accumulated
  36 packet count.
  37 Call <a href="ogg_stream_flush.html">ogg_stream_flush()</a> or
  38 <a href="ogg_stream_flush_fill.html">ogg_stream_flush_fill()</a> if
  39 immediate page generation is desired regardless of accumulated data.</p>
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  45 <pre><b>
  46 int ogg_stream_pageout_fill(<a href="ogg_stream_state.html">ogg_stream_state</a> *os, <a href="ogg_page.html">ogg_page</a> *og, int fillbytes);
  47 </b></pre>
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  51
  52 <h3>Parameters</h3>
  53 <dl>
  54 <dt><i>os</i></dt>
  55 <dd>Pointer to a previously declared <a href="ogg_stream.html">ogg_stream</a> struct, which represents the current logical bitstream.</dd>
  56 <dt><i>og</i></dt>
  57 <dd>Pointer to an <a href="ogg_page.html">ogg_page</a> structure to fill
  58 in. Data pointed to is owned by libogg. The structure is valid until the
  59 next call to ogg_stream_pageout(), ogg_stream_packetin(), or
  60 ogg_stream_flush().</dd>
  61 <dt><i>fillbytes</i></dt>
  62 <dd>Packet data watermark in bytes.</dd>
  63 </dl>
  64
  65
  66 <h3>Return Values</h3>
  67 <blockquote>
  68 <li>Zero means that insufficient data has accumulated to fill a page, or an internal error occurred. In
  69 this case <i>og</i> is not modified.</li>
  70 <li>Non-zero means that a page has been completed and returned.</li>
  71 </blockquote>
  72 <p>
  73
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  78 <td><p class=tiny>copyright &copy; 2000-2017 Xiph.Org Foundation</p></td>
  79 <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
  80 </tr><tr>
  81 <td><p class=tiny>libogg documentation</p></td>
  82 <td align=right><p class=tiny>libogg release 1.3.3 - 20171107</p></td>
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