video_8h-source.html

pwlib开发文档

00112   <span class="keyword">public</span>:
<a name="l00115"></a><a class="code" href="classPVideoChannel.html#z471_0">00115</a>     <span class="keyword">enum</span> <a class="code" href="classPVideoChannel.html#z471_0">Directions</a> {
00116       <a class="code" href="classPVideoChannel.html#z471_0s0">Recorder</a>,
00117       <a class="code" href="classPVideoChannel.html#z471_0s1">Player</a>
00118     };
00119 
00121     <a class="code" href="classPVideoChannel.html#z471_1">PVideoChannel</a>();
00122 
00126     <a class="code" href="classPVideoChannel.html#z471_1">PVideoChannel</a>(
00127       <span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> &amp; device,       
00128       <a class="code" href="classPVideoChannel.html#z471_0">Directions</a> dir               
00129     );
00130     <span class="comment">// </span>
00131 
00132     <a class="code" href="classPVideoChannel.html#z471_3">~PVideoChannel</a>();
00133     <span class="comment">// Destroy and close the video driver</span>
00135 <span class="comment"></span>
00144 <span class="comment"></span>    BOOL <a class="code" href="classPVideoChannel.html#z473_0">Open</a>(
00145       <span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> &amp; device,       
00146       <a class="code" href="classPVideoChannel.html#z471_0">Directions</a> dir               
00147     );
00148 
00153      BOOL <a class="code" href="classPVideoChannel.html#z473_1">IsOpen</a>() <span class="keyword">const</span>;
00154     
00163     <span class="keyword">static</span> <a class="code" href="classPStringList.html">PStringList</a> <a class="code" href="classPVideoChannel.html#z473_2">GetDeviceNames</a>(
00164       <a class="code" href="classPVideoChannel.html#z471_0">Directions</a> dir    <span class="comment">// Video I/O direction</span>
00165     )  ;
00166 
00175     <span class="keyword">static</span> <a class="code" href="classPString.html">PString</a> <a class="code" href="classPVideoChannel.html#z473_3">GetDefaultDevice</a>(
00176       <a class="code" href="classPVideoChannel.html#z471_0">Directions</a> dir    <span class="comment">// Video I/O direction</span>
00177     );
00179 
00180     
00183     <span class="keyword">virtual</span> PINDEX  <a class="code" href="classPVideoChannel.html#a0">GetGrabWidth</a>(); 
00184 
00187     <span class="keyword">virtual</span> PINDEX  <a class="code" href="classPVideoChannel.html#a1">GetGrabHeight</a>();
00188 
00189     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoChannel.html#a2">Read</a>(<span class="keywordtype">void</span> * buf, PINDEX  len);
00190       <span class="comment">// Low level read from the video channel. This function will block until the</span>
00191       <span class="comment">// requested number of characters were read.</span>
00192   
00193   
00197     BOOL <a class="code" href="classPVideoChannel.html#a3">Write</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> * buf,  <span class="comment">//Pointer to the image data to be rendered</span>
00198                PINDEX      len);
00199                
00203     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoChannel.html#a4">Redraw</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> * frame); 
00204 
00207     PINDEX  <a class="code" href="classPVideoChannel.html#a5">GetRenderWidth</a>();
00208 
00211     PINDEX  <a class="code" href="classPVideoChannel.html#a6">GetRenderHeight</a>();
00212 
00216     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPVideoChannel.html#a7">SetRenderFrameSize</a>(<span class="keywordtype">int</span> _width, <span class="keywordtype">int</span> _height); 
00217 
00221     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPVideoChannel.html#a8">SetGrabberFrameSize</a>(<span class="keywordtype">int</span> _width, <span class="keywordtype">int</span> _height); 
00222 
00231     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPVideoChannel.html#a9">AttachVideoPlayer</a>(<a class="code" href="classPVideoOutputDevice.html">PVideoOutputDevice</a> * device, BOOL keepCurrent = TRUE);
00232 
00241     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPVideoChannel.html#a10">AttachVideoReader</a>(<a class="code" href="classPVideoInputDevice.html">PVideoInputDevice</a> * device, BOOL keepCurrent = TRUE);
00242 
00245     <span class="keyword">virtual</span> <a class="code" href="classPVideoInputDevice.html">PVideoInputDevice</a> *<a class="code" href="classPVideoChannel.html#a11">GetVideoReader</a>();
00246 
00249     <span class="keyword">virtual</span> <a class="code" href="classPVideoOutputDevice.html">PVideoOutputDevice</a> *<a class="code" href="classPVideoChannel.html#a12">GetVideoPlayer</a>();
00250 
00253     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoChannel.html#a13">IsGrabberOpen</a>();
00254     
00257     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoChannel.html#a14">IsRenderOpen</a>();
00258 
00262     BOOL <a class="code" href="classPVideoChannel.html#a15">DisplayRawData</a>(<span class="keywordtype">void</span> *videoBuffer);
00263 
00266     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPVideoChannel.html#a16">CloseVideoReader</a>();
00267 
00270     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPVideoChannel.html#a17">CloseVideoPlayer</a>();
00271 
00274     <span class="keywordtype">void</span> <a class="code" href="classPVideoChannel.html#a18">RestrictAccess</a>();
00275     
00278     <span class="keywordtype">void</span> <a class="code" href="classPVideoChannel.html#a19">EnableAccess</a>();
00279 
00282     BOOL <a class="code" href="classPVideoChannel.html#a20">ToggleVFlipInput</a>();
00283 
00284  <span class="keyword">protected</span>:
00285 
<a name="l00286"></a><a class="code" href="classPVideoChannel.html#n0">00286</a>     <a class="code" href="classPVideoChannel.html#z471_0">Directions</a>       <a class="code" href="classPVideoChannel.html#n0">direction</a>;
00287 
<a name="l00288"></a><a class="code" href="classPVideoChannel.html#n1">00288</a>     <a class="code" href="classPString.html">PString</a>          <a class="code" href="classPVideoChannel.html#n1">deviceName</a>;     
<a name="l00289"></a><a class="code" href="classPVideoChannel.html#n2">00289</a>     <a class="code" href="classPVideoInputDevice.html">PVideoInputDevice</a>  *<a class="code" href="classPVideoChannel.html#n2">mpInput</a>;    
<a name="l00290"></a><a class="code" href="classPVideoChannel.html#n3">00290</a>     <a class="code" href="classPVideoOutputDevice.html">PVideoOutputDevice</a> *<a class="code" href="classPVideoChannel.html#n3">mpOutput</a>;   
00291 
<a name="l00292"></a><a class="code" href="classPVideoChannel.html#n4">00292</a>     <a class="code" href="classPMutex.html">PMutex</a>           <a class="code" href="classPVideoChannel.html#n4">accessMutex</a>;   <span class="comment">// Ensure that only task is accesing </span>
00293                                     <span class="comment">// members in this video channel.</span>
00294   <span class="keyword">private</span>:
00295     <span class="keywordtype">void</span> Construct();
00296 
00297 
00298 <span class="comment">// Include platform dependent part of class</span>
00299 <span class="preprocessor">#ifdef _WIN32</span>
00300 <span class="preprocessor"></span><span class="preprocessor">#include "msos/ptlib/video.h"</span>
00301 <span class="preprocessor">#else</span>
00302 <span class="preprocessor"></span><span class="preprocessor">#include "unix/ptlib/video.h"</span>
00303 <span class="preprocessor">#endif</span>
00304 <span class="preprocessor"></span>};
00305 
00306 <span class="preprocessor">#endif</span>
00307 <span class="preprocessor"></span>
00308 
00309 <span class="comment">// End Of File ///////////////////////////////////////////////////////////////</span>
</pre></div><hr><address style="align: right;"><small>Generated on Wed Sep 29 22:44:12 2004 for PWLib by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 
width=110 height=53></a>1.2.18 </small></address>
</body>
</html>