videoio_8h-source.html

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00174 <span class="preprocessor">#ifndef _PVIDEOIO</span>
00175 <span class="preprocessor"></span><span class="preprocessor">#define _PVIDEOIO</span>
00176 <span class="preprocessor"></span>
00177 <span class="preprocessor">#ifdef P_USE_PRAGMA</span>
00178 <span class="preprocessor"></span><span class="preprocessor">#pragma interface</span>
00179 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00180 <span class="preprocessor"></span>
00181 <span class="preprocessor">#if defined(_WIN32)</span>
00182 <span class="preprocessor"></span><a class="code" href="plugin_8h.html#a6">PWLIB_STATIC_LOAD_PLUGIN</a>(PVideoInputDevice_VideoForWindows);
00183 <a class="code" href="plugin_8h.html#a6">PWLIB_STATIC_LOAD_PLUGIN</a>(PVideoInputDevice_FakeVideo);
00184 
00185 <a class="code" href="plugin_8h.html#a6">PWLIB_STATIC_LOAD_PLUGIN</a>(PVideoOutputDevice_NULLOutput);
00186 <span class="preprocessor">#endif</span>
00187 <span class="preprocessor"></span>
00188 <span class="keyword">class </span><a class="code" href="classPColourConverter.html">PColourConverter</a>;
00189 
<a name="l00220"></a><a class="code" href="classPVideoDevice.html">00220</a> <span class="keyword">class </span><a class="code" href="classPVideoDevice.html">PVideoDevice</a> : <span class="keyword">public</span> <a class="code" href="classPObject.html">PObject</a>
00221 {
00222   <a class="code" href="object_8h.html#a27">PCLASSINFO</a>(<a class="code" href="classPVideoDevice.html">PVideoDevice</a>, <a class="code" href="classPObject.html">PObject</a>);
00223 
00224   <span class="keyword">protected</span>:
00227     <a class="code" href="classPVideoDevice.html#b0">PVideoDevice</a>();
00228 
00229 
00230   <span class="keyword">public</span>:
00233     <span class="keyword">virtual</span> <a class="code" href="classPVideoDevice.html#a0">~PVideoDevice</a>();
00234 
<a name="l00235"></a><a class="code" href="classPVideoDevice.html#s15">00235</a>     <span class="keyword">enum</span> <a class="code" href="classPVideoDevice.html#s15">VideoFormat</a> {
00236       <a class="code" href="classPVideoDevice.html#s15s0">PAL</a>,
00237       <a class="code" href="classPVideoDevice.html#s15s1">NTSC</a>,
00238       <a class="code" href="classPVideoDevice.html#s15s2">SECAM</a>,
00239       <a class="code" href="classPVideoDevice.html#s15s3">Auto</a>,
00240       <a class="code" href="classPVideoDevice.html#s15s4">NumVideoFormats</a>
00241     };
00242 
<a name="l00243"></a><a class="code" href="classPVideoDevice.html#s16">00243</a>     <span class="keyword">enum</span> <a class="code" href="classPVideoDevice.html#s16">StandardSizes</a> {
00244       <a class="code" href="classPVideoDevice.html#s16s5">CIF16Width</a> = 1408,
00245       <a class="code" href="classPVideoDevice.html#s16s6">CIF16Height</a> = 1152,
00246       <a class="code" href="classPVideoDevice.html#s16s7">CIF4Width</a> = 704,
00247       <a class="code" href="classPVideoDevice.html#s16s8">CIF4Height</a> = 576,
00248       <a class="code" href="classPVideoDevice.html#s16s9">CIFWidth</a> = 352,
00249       <a class="code" href="classPVideoDevice.html#s16s10">CIFHeight</a> = 288,
00250       <a class="code" href="classPVideoDevice.html#s16s11">QCIFWidth</a> = 176,
00251       <a class="code" href="classPVideoDevice.html#s16s12">QCIFHeight</a> = 144,
00252       <a class="code" href="classPVideoDevice.html#s16s13">SQCIFWidth</a> = 144,
00253       <a class="code" href="classPVideoDevice.html#s16s14">SQCIFHeight</a> = 96,
00254     };
00255 
<a name="l00256"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html">00256</a>     <span class="keyword">struct </span><a class="code" href="structPVideoDevice_1_1OpenArgs.html">OpenArgs</a> {
<a name="l00257"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#a0">00257</a>       <a class="code" href="structPVideoDevice_1_1OpenArgs.html#a0">OpenArgs</a>()
00258         : <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m0">deviceName</a>("#1"),
00259           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m1">videoFormat</a>(Auto),
00260           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m2">channelNumber</a>(0),
00261           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m3">colourFormat</a>("YUV420P"),
00262           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m4">convertFormat</a>(TRUE),
00263           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m5">rate</a>(0),
00264           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m6">width</a>(CIFWidth),
00265           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m7">height</a>(CIFHeight),
00266           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m8">convertSize</a>(TRUE),
00267           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m9">scaleSize</a>(FALSE),
00268           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m10">flip</a>(FALSE),
00269           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m11">brightness</a>(-1),
00270           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m12">whiteness</a>(-1),
00271           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m13">contrast</a>(-1),
00272           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m14">colour</a>(-1),
00273           <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m15">hue</a>(-1)
00274         { }
<a name="l00275"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m0">00275</a>       <a class="code" href="classPString.html">PString</a>     <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m0">deviceName</a>;
<a name="l00276"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m1">00276</a>       VideoFormat <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m1">videoFormat</a>;
<a name="l00277"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m2">00277</a>       <span class="keywordtype">int</span>         <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m2">channelNumber</a>;
<a name="l00278"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m3">00278</a>       <a class="code" href="classPString.html">PString</a>     <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m3">colourFormat</a>;
<a name="l00279"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m4">00279</a>       BOOL        <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m4">convertFormat</a>;
<a name="l00280"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m5">00280</a>       <span class="keywordtype">unsigned</span>    <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m5">rate</a>;
<a name="l00281"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m6">00281</a>       <span class="keywordtype">unsigned</span>    <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m6">width</a>;
<a name="l00282"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m7">00282</a>       <span class="keywordtype">unsigned</span>    <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m7">height</a>;
<a name="l00283"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m8">00283</a>       BOOL        <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m8">convertSize</a>;
<a name="l00284"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m9">00284</a>       BOOL        <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m9">scaleSize</a>;
<a name="l00285"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m10">00285</a>       BOOL        <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m10">flip</a>;
<a name="l00286"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m11">00286</a>       <span class="keywordtype">int</span>         <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m11">brightness</a>;
<a name="l00287"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m12">00287</a>       <span class="keywordtype">int</span>         <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m12">whiteness</a>;
<a name="l00288"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m13">00288</a>       <span class="keywordtype">int</span>         <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m13">contrast</a>;
<a name="l00289"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m14">00289</a>       <span class="keywordtype">int</span>         <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m14">colour</a>;
<a name="l00290"></a><a class="code" href="structPVideoDevice_1_1OpenArgs.html#m15">00290</a>       <span class="keywordtype">int</span>         <a class="code" href="structPVideoDevice_1_1OpenArgs.html#m15">hue</a>;
00291     };
00292 
00295     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a1">OpenFull</a>(
00296       <span class="keyword">const</span> OpenArgs &amp; args,      
00297       BOOL startImmediate = TRUE  
00298     );
00299 
00302     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a2">Open</a>(
00303       <span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> &amp; <a class="code" href="classPVideoDevice.html#n0">deviceName</a>,   
00304       BOOL startImmediate = TRUE    
00305     ) = 0;
00306 
00309     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a3">IsOpen</a>() = 0;
00310 
00313     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a4">Close</a>() = 0;
00314 
00317     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a5">Start</a>() = 0;
00318 
00321     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a6">Stop</a>() = 0;
00322 
00323 
<a name="l00326"></a><a class="code" href="classPVideoDevice.html#a7">00326</a>     <span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> &amp; <a class="code" href="classPVideoDevice.html#a7">GetDeviceName</a>()<span class="keyword"> const</span>
00327 <span class="keyword">      </span>{ <span class="keywordflow">return</span> <a class="code" href="classPVideoDevice.html#n0">deviceName</a>; }
00328 
00331     <span class="keyword">virtual</span> <a class="code" href="classPStringList.html">PStringList</a> <a class="code" href="classPVideoDevice.html#a8">GetDeviceNames</a>() <span class="keyword">const</span> = 0;
00332 
00333 <span class="preprocessor">#if PTRACING</span>
00334 <span class="preprocessor"></span>    <span class="keyword">friend</span> ostream &amp; <a class="code" href="classPObject.html#z201_2">operator&lt;&lt;</a>(ostream &amp;, <a class="code" href="classPVideoDevice.html#s15">VideoFormat</a>);
00335 <span class="preprocessor">#endif</span>
00336 <span class="preprocessor"></span>
00342     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a9">SetVideoFormat</a>(
00343       <a class="code" href="classPVideoDevice.html#s15">VideoFormat</a> <a class="code" href="classPVideoDevice.html#n2">videoFormat</a>   
00344     );
00345 
00350     <span class="keyword">virtual</span> <a class="code" href="classPVideoDevice.html#s15">VideoFormat</a> <a class="code" href="classPVideoDevice.html#a10">GetVideoFormat</a>() <span class="keyword">const</span>;
00351 
00356     <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classPVideoDevice.html#a11">GetNumChannels</a>();
00357 
00365     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a12">SetChannel</a>(
00366       <span class="keywordtype">int</span> <a class="code" href="classPVideoDevice.html#n3">channelNumber</a>  
00367     );
00368 
00373     <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classPVideoDevice.html#a13">GetChannel</a>() <span class="keyword">const</span>;
00374 
00381     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a14">SetColourFormatConverter</a>(
00382       <span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> &amp; <a class="code" href="classPVideoDevice.html#n4">colourFormat</a> <span class="comment">// New colour format for device.</span>
00383     );
00384 
00395     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a15">SetColourFormat</a>(
00396       <span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> &amp; <a class="code" href="classPVideoDevice.html#n4">colourFormat</a> <span class="comment">// New colour format for device.</span>
00397     );
00398 
00403     <span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> &amp; <a class="code" href="classPVideoDevice.html#a16">GetColourFormat</a>() <span class="keyword">const</span>;
00404 
00410     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a17">SetFrameRate</a>(
00411       <span class="keywordtype">unsigned</span> rate  
00412     );
00413 
00418     <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <a class="code" href="classPVideoDevice.html#a18">GetFrameRate</a>() <span class="keyword">const</span>;
00419 
00425     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a19">GetFrameSizeLimits</a>(
00426       <span class="keywordtype">unsigned</span> &amp; minWidth,   
00427       <span class="keywordtype">unsigned</span> &amp; minHeight,  
00428       <span class="keywordtype">unsigned</span> &amp; maxWidth,   
00429       <span class="keywordtype">unsigned</span> &amp; maxHeight   
00430     ) ;
00431 
00432 
00438     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a20">SetFrameSizeConverter</a>(
00439       <span class="keywordtype">unsigned</span> width,        
00440       <span class="keywordtype">unsigned</span> height,       
00441       BOOL     bScaleNotCrop 
00442     );
00443 
00452     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a21">SetFrameSize</a>(
00453       <span class="keywordtype">unsigned</span> width,   
00454       <span class="keywordtype">unsigned</span> height   
00455     );
00456 
00462     <span class="keyword">virtual</span> BOOL <a class="code" href="classPVideoDevice.html#a22">GetFrameSize</a>(
00463       <span class="keywordtype">unsigned</span> &amp; width,
00464       <span class="keywordtype">unsigned</span> &amp; height
00465     );
00466 
00471     <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <a class="code" href="classPVideoDevice.html#a23">GetFrameWidth</a>() <span class="keyword">const</span>;
00472 
00477     <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <a class="code" href="classPVideoDevice.html#a24">GetFrameHeight</a>() <span class="keyword">const</span>;
00478 
00484     <span class="keyword">virtual</span> PINDEX <a class="code" href="classPVideoDevice.html#a25">GetMaxFrameBytes</a>() = 0;
00485 
00488     <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <a class="code" href="classPVideoDevice.html#d0">CalculateFrameBytes</a>( 
00489       <span class="keywordtype">unsigned</span> width,
00490       <span class="keywordtype">unsigned</span> height,
00491       <span class="keyword">const</span> <a class="code" href="classPString.html">PString</a> &amp; <a class="code" href="classPVideoDevice.html#n4">colourFormat</a>
00492     );
00493 
00494     
<a name="l00497"></a><a class="code" href="classPVideoDevice.html#a26">00497</a>     <span class="keywordtype">int</span> <a class="code" href="classPVideoDevice.html#a26">GetLastError</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classPVideoDevice.html#n1">lastError</a>; }