<?xml version="1.0" encoding="ANSI_X3.4-1968" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>start_filtering()</title><meta name="generator" content="DocBook XSL Stylesheets V1.76.1" /><link rel="home" href="index.html" title="LINUX MEDIA INFRASTRUCTURE API" /><link rel="up" href="dvb_kdapi.html" title="Chapter 15. Kernel Demux API" /><link rel="prev" href="ch15s09.html" title="release_filter()" /><link rel="next" href="ch15s11.html" title="stop_filtering()" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">start_filtering()</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch15s09.html">Prev</a> </td><th width="60%" align="center">Chapter 15. Kernel Demux API</th><td width="20%" align="right"> <a accesskey="n" href="ch15s11.html">Next</a></td></tr></table><hr /></div><div class="section" title="start_filtering()"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="id3343662"></a>start_filtering()</h2></div></div></div><p>DESCRIPTION </p><div class="informaltable"><table border="1"><colgroup><col /></colgroup><tbody><tr><td align="char"> <p>Starts filtering sections on this section feed, according to its settings. Sections are first filtered based on their PID and then matched with the section filters allocated for this feed. If the section matches the PID filter and at least one section filter, it is delivered to the API client. The section is delivered asynchronously using the callback function registered with allocate_section_feed().</p> </td></tr></tbody></table></div><p>SYNOPSIS </p><div class="informaltable"><table border="1"><colgroup><col /></colgroup><tbody><tr><td align="char"> <p>int start_filtering ( dmx_section_feed_t⋆ feed );</p> </td></tr></tbody></table></div><p>PARAMETERS </p><div class="informaltable"><table border="1"><colgroup><col /><col /></colgroup><tbody><tr><td align="char"> <p>dmx_section_feed_t* feed</p> </td><td align="char"> <p>Pointer to the section feed API and instance data.</p> </td></tr></tbody></table></div><p>RETURNS </p><div class="informaltable"><table border="1"><colgroup><col /><col /></colgroup><tbody><tr><td align="char"> <p>0</p> </td><td align="char"> <p>The function was completed without errors.</p> </td></tr><tr><td align="char"> <p>-EINVAL</p> </td><td align="char"> <p>Bad parameter.</p> </td></tr></tbody></table></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch15s09.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="dvb_kdapi.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch15s11.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">release_filter() </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> stop_filtering()</td></tr></table></div></body></html>
