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| author | Chris Cannam |
|---|---|
| date | Fri, 07 Feb 2020 11:51:13 +0000 |
| parents | 05aa0afa9217 |
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> <title>FLAC: FLAC__FrameHeader Struct Reference</title> <link href="doxygen.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.4.2 --> <div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a></div> <h1>FLAC__FrameHeader Struct Reference<br> <small> [<a class="el" href="group__flac__format.html">FLAC/format.h: format components</a>]</small> </h1><code>#include <<a class="el" href="format_8h-source.html">format.h</a>></code> <p> <a href="structFLAC____FrameHeader-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2> FLAC frame header structure. (c.f. <a href="../format.html#frame_header">format specification</a>) <p> <table border="0" cellpadding="0" cellspacing="0"> <tr><td></td></tr> <tr><td colspan="2"><br><h2>Public Attributes</h2></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero0">blocksize</a></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero1">sample_rate</a></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero2">channels</a></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__flac__format.html#ga111">FLAC__ChannelAssignment</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero3">channel_assignment</a></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero4">bits_per_sample</a></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group__flac__format.html#ga112">FLAC__FrameNumberType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero5">number_type</a></td></tr> <tr><td class="memItemLeft" nowrap>union {</td></tr> <tr><td class="memItemLeft" nowrap> FLAC__uint32 <b>frame_number</b></td></tr> <tr><td class="memItemLeft" nowrap> FLAC__uint64 <b>sample_number</b></td></tr> <tr><td class="memItemLeft" nowrap valign="top">} </td><td class="memItemRight" valign="bottom"><a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero8">number</a></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top">FLAC__uint8 </td><td class="memItemRight" valign="bottom"><a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero9">crc</a></td></tr> </table> <hr><h2>Member Data Documentation</h2> <a class="anchor" name="FLAC____FrameHeadero0" doxytag="FLAC__FrameHeader::blocksize"></a><p> <table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">unsigned <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero0">FLAC__FrameHeader::blocksize</a> </td> </tr> </table> </td> </tr> </table> <table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td> <p> The number of samples per subframe. </td> </tr> </table> <a class="anchor" name="FLAC____FrameHeadero1" doxytag="FLAC__FrameHeader::sample_rate"></a><p> <table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">unsigned <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero1">FLAC__FrameHeader::sample_rate</a> </td> </tr> </table> </td> </tr> </table> <table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td> <p> The sample rate in Hz. </td> </tr> </table> <a class="anchor" name="FLAC____FrameHeadero2" doxytag="FLAC__FrameHeader::channels"></a><p> <table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">unsigned <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero2">FLAC__FrameHeader::channels</a> </td> </tr> </table> </td> </tr> </table> <table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td> <p> The number of channels (== number of subframes). </td> </tr> </table> <a class="anchor" name="FLAC____FrameHeadero3" doxytag="FLAC__FrameHeader::channel_assignment"></a><p> <table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"><a class="el" href="group__flac__format.html#ga111">FLAC__ChannelAssignment</a> <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero3">FLAC__FrameHeader::channel_assignment</a> </td> </tr> </table> </td> </tr> </table> <table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td> <p> The channel assignment for the frame. </td> </tr> </table> <a class="anchor" name="FLAC____FrameHeadero4" doxytag="FLAC__FrameHeader::bits_per_sample"></a><p> <table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">unsigned <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero4">FLAC__FrameHeader::bits_per_sample</a> </td> </tr> </table> </td> </tr> </table> <table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td> <p> The sample resolution. </td> </tr> </table> <a class="anchor" name="FLAC____FrameHeadero5" doxytag="FLAC__FrameHeader::number_type"></a><p> <table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"><a class="el" href="group__flac__format.html#ga112">FLAC__FrameNumberType</a> <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero5">FLAC__FrameHeader::number_type</a> </td> </tr> </table> </td> </tr> </table> <table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td> <p> The numbering scheme used for the frame. As a convenience, the decoder will always convert a frame number to a sample number because the rules are complex. </td> </tr> </table> <a class="anchor" name="FLAC____FrameHeadero8" doxytag="FLAC__FrameHeader::number"></a><p> <table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">union { ... } <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero8">FLAC__FrameHeader::number</a> </td> </tr> </table> </td> </tr> </table> <table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td> <p> The frame number or sample number of first sample in frame; use the <em>number_type</em> value to determine which to use. </td> </tr> </table> <a class="anchor" name="FLAC____FrameHeadero9" doxytag="FLAC__FrameHeader::crc"></a><p> <table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">FLAC__uint8 <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero9">FLAC__FrameHeader::crc</a> </td> </tr> </table> </td> </tr> </table> <table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td> <p> CRC-8 (polynomial = x^8 + x^2 + x^1 + x^0, initialized with 0) of the raw frame header bytes, meaning everything before the CRC byte including the sync code. </td> </tr> </table> <hr>The documentation for this struct was generated from the following file:<ul> <li>include/FLAC/<a class="el" href="format_8h-source.html">format.h</a></ul> <hr size="1"> <div class="copyright"> <!-- @@@ oh so hacky --> <table> <tr> <td align="left"> Copyright (c) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson </td> <td width="1%" align="right"> <a href="http://sourceforge.net"><img src="http://sflogo.sourceforge.net/sflogo.php?group_id=13478&type=1" width="88" height="31" border="0" alt="SourceForge.net Logo" /></a> </td> </tr> </table> </div> <!-- Copyright (c) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson --> <!-- Permission is granted to copy, distribute and/or modify this document --> <!-- under the terms of the GNU Free Documentation License, Version 1.1 --> <!-- or any later version published by the Free Software Foundation; --> <!-- with no invariant sections. --> <!-- A copy of the license can be found at http://www.gnu.org/copyleft/fdl.html --> </body> </html>