classpwavfile.html

pwlib开发文档

<tr><td valign=top><em>opts</em>&nbsp;</td><td>
Mode in which to open the file. <a class="el" href="classPFile.html#z125_1">OpenOptions</a> enum# for open operation. </td></tr>
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<a name="z493_5" doxytag="PWAVFile::~PWAVFile"></a><p>
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          <td class="md" nowrap valign="top"> PWAVFile::~PWAVFile </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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Close the file before destruction.     </td>
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<hr><h2>Member Function Documentation</h2>
<a name="z495_4" doxytag="PWAVFile::Close"></a><p>
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          <td class="md" nowrap valign="top"> virtual BOOL PWAVFile::Close </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Close the file channel. If a WAV file has been written to, this will update the header to contain the correct size information. <dl compact><dt><b>Returns: </b></dt><dd>
TRUE if close was OK. </dl>
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Reimplemented from <a class="el" href="classPFile.html#z129_3">PFile</a>.    </td>
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<a name="b0" doxytag="PWAVFile::Construct"></a><p>
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          <td class="md" nowrap valign="top"> void PWAVFile::Construct </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
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Reimplemented from <a class="el" href="classPChannel.html">PChannel</a>.    </td>
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<a name="a2" doxytag="PWAVFile::FileRead"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PWAVFile::FileRead </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">void *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>buf</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>PINDEX&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>len</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<a name="a3" doxytag="PWAVFile::FileWrite"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PWAVFile::FileWrite </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const void *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>buf</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>PINDEX&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>len</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<a name="z493_7" doxytag="PWAVFile::format"></a><p>
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          <td class="md" nowrap valign="top"> PWAVFile* PWAVFile::format </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPString.html">PString</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>format</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="classPFile.html#z125_0">PFile::OpenMode</a>&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>mode</em>, </td>
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          <td></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>opts</em> = PFile::ModeDefault</td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [static]</code></td>
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<dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>mode</em>&nbsp;</td><td>
Type of WAV File to create </td></tr>
<tr><td valign=top><em>opts</em>&nbsp;</td><td>
Mode in which to open the file. <a class="el" href="classPFile.html#z125_1">OpenOptions</a> enum# for open operation. </td></tr>
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<a name="z493_6" doxytag="PWAVFile::format"></a><p>
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          <td class="md" nowrap valign="top"> PWAVFile* PWAVFile::format </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPString.html">PString</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>format</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [static]</code></td>
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<dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>format</em>&nbsp;</td><td>
Type of WAV File to create </td></tr>
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<a name="b4" doxytag="PWAVFile::GenerateHeader"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PWAVFile::GenerateHeader </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
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<a name="z497_4" doxytag="PWAVFile::GetChannels"></a><p>
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          <td class="md" nowrap valign="top"> virtual unsigned PWAVFile::GetChannels </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Find out the number of channels the WAV file has. Typically this is 1 for mono and 2 for stereo.     </td>
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<a name="z497_11" doxytag="PWAVFile::GetDataLength"></a><p>
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          <td class="md" nowrap valign="top"> virtual off_t PWAVFile::GetDataLength </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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Find out how many bytes of audio data there are.     </td>
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<a name="z497_2" doxytag="PWAVFile::GetFormat"></a><p>
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          <td class="md" nowrap valign="top"> virtual unsigned PWAVFile::GetFormat </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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Find out the format of the WAV file. Eg 0x01 for PCM, 0x42 or 0x111 for G.723.1.     </td>