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<title>FLAC: FLAC__FrameHeader Struct Reference</title>
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<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>
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<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>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="FLAC____FrameHeadero0" doxytag="FLAC__FrameHeader::blocksize"></a><p>
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<td class="md" nowrap valign="top">unsigned <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero0">FLAC__FrameHeader::blocksize</a> </td>
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</td>
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<p>
The number of samples per subframe. </td>
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<a class="anchor" name="FLAC____FrameHeadero1" doxytag="FLAC__FrameHeader::sample_rate"></a><p>
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<td class="md" nowrap valign="top">unsigned <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero1">FLAC__FrameHeader::sample_rate</a> </td>
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</td>
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<td>
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<p>
The sample rate in Hz. </td>
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<a class="anchor" name="FLAC____FrameHeadero2" doxytag="FLAC__FrameHeader::channels"></a><p>
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<td class="md" nowrap valign="top">unsigned <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero2">FLAC__FrameHeader::channels</a> </td>
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</td>
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<p>
The number of channels (== number of subframes). </td>
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<a class="anchor" name="FLAC____FrameHeadero3" doxytag="FLAC__FrameHeader::channel_assignment"></a><p>
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<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>
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</td>
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<p>
The channel assignment for the frame. </td>
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<a class="anchor" name="FLAC____FrameHeadero4" doxytag="FLAC__FrameHeader::bits_per_sample"></a><p>
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<td class="md" nowrap valign="top">unsigned <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero4">FLAC__FrameHeader::bits_per_sample</a> </td>
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<p>
The sample resolution. </td>
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<a class="anchor" name="FLAC____FrameHeadero5" doxytag="FLAC__FrameHeader::number_type"></a><p>
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<td class="mdRow">
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<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>
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</td>
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<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>
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<a class="anchor" name="FLAC____FrameHeadero8" doxytag="FLAC__FrameHeader::number"></a><p>
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<td class="md" nowrap valign="top">union { ... } <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero8">FLAC__FrameHeader::number</a> </td>
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</td>
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<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>
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<td class="mdRow">
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<td class="md" nowrap valign="top">FLAC__uint8 <a class="el" href="structFLAC____FrameHeader.html#FLAC____FrameHeadero9">FLAC__FrameHeader::crc</a> </td>
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</td>
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<table cellspacing="5" cellpadding="0" border="0">
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<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>
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