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| <p>Color balance filter parametrization. |
| <a href="structVAProcFilterParameterBufferColorBalance.html#details">More...</a></p> |
| |
| <p><code>#include <<a class="el" href="va__vpp_8h_source.html">va_vpp.h</a>></code></p> |
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| Public Attributes</h2></td></tr> |
| <tr class="memitem:a8c7b20719ae111a2109cf0868ae1a9a2"><td class="memItemLeft" align="right" valign="top"><a id="a8c7b20719ae111a2109cf0868ae1a9a2"></a> |
| <a class="el" href="group__api__vpp.html#ga3614dbee76b8ac89dd5a3dc8b1a12bb7">VAProcFilterType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structVAProcFilterParameterBufferColorBalance.html#a8c7b20719ae111a2109cf0868ae1a9a2">type</a></td></tr> |
| <tr class="memdesc:a8c7b20719ae111a2109cf0868ae1a9a2"><td class="mdescLeft"> </td><td class="mdescRight">Filter type. Shall be set to <a class="el" href="group__api__vpp.html#gga3614dbee76b8ac89dd5a3dc8b1a12bb7aa8a5584d687edd09882fc002e3ab8df3" title="Color balance parameters. ">VAProcFilterColorBalance</a>. <br /></td></tr> |
| <tr class="separator:a8c7b20719ae111a2109cf0868ae1a9a2"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:acc813654d8a38d4ec08d3e16be96d52d"><td class="memItemLeft" align="right" valign="top"><a id="acc813654d8a38d4ec08d3e16be96d52d"></a> |
| <a class="el" href="group__api__vpp.html#ga4ec32b4cf1ce62835c17e7ce4022131a">VAProcColorBalanceType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structVAProcFilterParameterBufferColorBalance.html#acc813654d8a38d4ec08d3e16be96d52d">attrib</a></td></tr> |
| <tr class="memdesc:acc813654d8a38d4ec08d3e16be96d52d"><td class="mdescLeft"> </td><td class="mdescRight">Color balance attribute. <br /></td></tr> |
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| <tr class="memitem:a1e14dde7867a3899069874abff481600"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="structVAProcFilterParameterBufferColorBalance.html#a1e14dde7867a3899069874abff481600">value</a></td></tr> |
| <tr class="memdesc:a1e14dde7867a3899069874abff481600"><td class="mdescLeft"> </td><td class="mdescRight">Color balance value. <a href="#a1e14dde7867a3899069874abff481600">More...</a><br /></td></tr> |
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| uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structVAProcFilterParameterBufferColorBalance.html#a93956be7567e0ee8d80c62756c0d868d">va_reserved</a> [<a class="el" href="group__api__core.html#gaaa4fb20d1c2606379cccfa562c2ebb3b">VA_PADDING_LOW</a>]</td></tr> |
| <tr class="memdesc:a93956be7567e0ee8d80c62756c0d868d"><td class="mdescLeft"> </td><td class="mdescRight">Reserved bytes for future use, must be zero. <br /></td></tr> |
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| <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> |
| <div class="textblock"><p>Color balance filter parametrization. </p> |
| <p>This buffer defines color balance attributes. A VA buffer can hold several color balance attributes by creating a VA buffer of desired number of elements. This can be achieved by the following pseudo-code:</p> |
| <div class="fragment"><div class="line"><span class="keyword">enum</span> { kHue, kSaturation, kBrightness, kContrast };</div><div class="line"></div><div class="line"><span class="comment">// Initial color balance parameters</span></div><div class="line"><span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="structVAProcFilterParameterBufferColorBalance.html">VAProcFilterParameterBufferColorBalance</a> colorBalanceParams[4] =</div><div class="line">{</div><div class="line"> [kHue] =</div><div class="line"> { <a class="code" href="group__api__vpp.html#gga3614dbee76b8ac89dd5a3dc8b1a12bb7aa8a5584d687edd09882fc002e3ab8df3">VAProcFilterColorBalance</a>, <a class="code" href="group__api__vpp.html#gga4ec32b4cf1ce62835c17e7ce4022131aa923f00b213c97774293b70303ded87a2">VAProcColorBalanceHue</a>, 0.5 },</div><div class="line"> [kSaturation] =</div><div class="line"> { <a class="code" href="group__api__vpp.html#gga3614dbee76b8ac89dd5a3dc8b1a12bb7aa8a5584d687edd09882fc002e3ab8df3">VAProcFilterColorBalance</a>, <a class="code" href="group__api__vpp.html#gga4ec32b4cf1ce62835c17e7ce4022131aac3681f534df2154abf11ee88bfaa0e99">VAProcColorBalanceSaturation</a>, 0.5 },</div><div class="line"> [kBrightness] =</div><div class="line"> { <a class="code" href="group__api__vpp.html#gga3614dbee76b8ac89dd5a3dc8b1a12bb7aa8a5584d687edd09882fc002e3ab8df3">VAProcFilterColorBalance</a>, <a class="code" href="group__api__vpp.html#gga4ec32b4cf1ce62835c17e7ce4022131aacd9b167b31ae0a1d15ea1a4c254c76dc">VAProcColorBalanceBrightness</a>, 0.5 },</div><div class="line"> [kSaturation] =</div><div class="line"> { <a class="code" href="group__api__vpp.html#gga3614dbee76b8ac89dd5a3dc8b1a12bb7aa8a5584d687edd09882fc002e3ab8df3">VAProcFilterColorBalance</a>, <a class="code" href="group__api__vpp.html#gga4ec32b4cf1ce62835c17e7ce4022131aac3681f534df2154abf11ee88bfaa0e99">VAProcColorBalanceSaturation</a>, 0.5 }</div><div class="line">};</div><div class="line"></div><div class="line"><span class="comment">// Create buffer</span></div><div class="line"><a class="code" href="group__api__core.html#gad26441ddf2f4441ef65bbefa4662607f">VABufferID</a> colorBalanceBuffer;</div><div class="line"><a class="code" href="group__api__core.html#gaba254978bf0d32781f4a9e67f1fa7a78">vaCreateBuffer</a>(va_dpy, vpp_ctx,</div><div class="line"> <a class="code" href="group__api__core.html#gga24da9776c5d3a5ce29cb592cf22c00dba8c3862f3b099ed92870a93f278248e65">VAProcFilterParameterBufferType</a>, <span class="keyword">sizeof</span>(*pColorBalanceParam), 4,</div><div class="line"> colorBalanceParams,</div><div class="line"> &colorBalanceBuffer</div><div class="line">);</div><div class="line"></div><div class="line"><a class="code" href="structVAProcFilterParameterBufferColorBalance.html">VAProcFilterParameterBufferColorBalance</a> *pColorBalanceParam;</div><div class="line"><a class="code" href="group__api__core.html#gaf14c698af1d0920f4aeb5eb11f81b6aa">vaMapBuffer</a>(va_dpy, colorBalanceBuffer, &pColorBalanceParam);</div><div class="line">{</div><div class="line"> <span class="comment">// Change brightness only</span></div><div class="line"> pColorBalanceBuffer[kBrightness].value = 0.75;</div><div class="line">}</div><div class="line"><a class="code" href="group__api__core.html#gae9b81871416c64b07e81d3eb54b6d579">vaUnmapBuffer</a>(va_dpy, colorBalanceBuffer);</div></div><!-- fragment --> </div><h2 class="groupheader">Member Data Documentation</h2> |
| <a id="a1e14dde7867a3899069874abff481600"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a1e14dde7867a3899069874abff481600">◆ </a></span>value</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">float VAProcFilterParameterBufferColorBalance::value</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Color balance value. </p> |
| <p>Special case for automatically adjusted attributes. e.g. <a class="el" href="group__api__vpp.html#gga4ec32b4cf1ce62835c17e7ce4022131aacccb37bff38f187738a8be349b42d408" title="Automatically adjusted saturation. ">VAProcColorBalanceAutoSaturation</a>, <a class="el" href="group__api__vpp.html#gga4ec32b4cf1ce62835c17e7ce4022131aac29e9bf40ee4798c9cf5fdb48849725c" title="Automatically adjusted brightness. ">VAProcColorBalanceAutoBrightness</a>, <a class="el" href="group__api__vpp.html#gga4ec32b4cf1ce62835c17e7ce4022131aa5e3d070612dd5f2623fba81fc8a43053" title="Automatically adjusted contrast. ">VAProcColorBalanceAutoContrast</a>.</p><ul> |
| <li>If <a class="el" href="structVAProcFilterParameterBufferColorBalance.html#a1e14dde7867a3899069874abff481600">value</a> is <code>1.0</code> +/- <code>FLT_EPSILON</code>, the attribute is automatically adjusted and overrides any other attribute of the same type that would have been set explicitly;</li> |
| <li>If <a class="el" href="structVAProcFilterParameterBufferColorBalance.html#a1e14dde7867a3899069874abff481600">value</a> is <code>0.0</code> +/- <code>FLT_EPSILON</code>, the attribute is disabled and other attribute of the same type is used instead. </li> |
| </ul> |
| |
| </div> |
| </div> |
| <hr/>The documentation for this struct was generated from the following file:<ul> |
| <li><a class="el" href="va__vpp_8h_source.html">va_vpp.h</a></li> |
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