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 <span id="projectnumber">2.7.1</span>
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<a href="#pub-attribs">Data Fields</a> </div>
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<div class="title">xvmc_pix_fmt Struct Reference<div class="ingroups"><a class="el" href="group__lavc__codec__hwaccel__xvmc.html">XvMC</a></div></div> </div>
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<!-- doxytag: class="xvmc_pix_fmt" -->
<p><code>#include <<a class="el" href="xvmc_8h_source.html">xvmc.h</a>></code></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a6cadfce3023ac1a8730e675629f21430">xvmc_id</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The field contains the special constant value AV_XVMC_ID. <a href="#a6cadfce3023ac1a8730e675629f21430"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">short * </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a194ffdefda2917100cedd71ce3ae6877">data_blocks</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Pointer to the block array allocated by XvMCCreateBlocks(). <a href="#a194ffdefda2917100cedd71ce3ae6877"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">XvMCMacroBlock * </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#ad83c1ceb45842ea0d4988f4b9b9e6483">mv_blocks</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Pointer to the macroblock description array allocated by XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks(). <a href="#ad83c1ceb45842ea0d4988f4b9b9e6483"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a7cd4533356f2d7c753d706be423fc9a8">allocated_mv_blocks</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Number of macroblock descriptions that can be stored in the mv_blocks array. <a href="#a7cd4533356f2d7c753d706be423fc9a8"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#af3cade3f29f20d5145ec37da14919c90">allocated_data_blocks</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Number of blocks that can be stored at once in the data_blocks array. <a href="#af3cade3f29f20d5145ec37da14919c90"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#ac4b1077dca08f6e076840a8797b23d1c">idct</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Indicate that the hardware would interpret data_blocks as IDCT coefficients and perform IDCT on them. <a href="#ac4b1077dca08f6e076840a8797b23d1c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a19d652ba10cd3efe9b0540fdd76cd580">unsigned_intra</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">In MoCo mode it indicates that intra macroblocks are assumed to be in unsigned format; same as the XVMC_INTRA_UNSIGNED flag. <a href="#a19d652ba10cd3efe9b0540fdd76cd580"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">XvMCSurface * </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a027005d198ee1a18b1c7f466df8b03c5">p_surface</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Pointer to the surface allocated by XvMCCreateSurface(). <a href="#a027005d198ee1a18b1c7f466df8b03c5"></a><br/></td></tr>
<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">XvMCSurface * </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a7cf41a3215c965c406a066e8cb6cb58b">p_past_surface</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set by the decoder before calling ff_draw_horiz_band(), needed by the XvMCRenderSurface function. <a href="#a7cf41a3215c965c406a066e8cb6cb58b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">XvMCSurface * </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#ad186a2b2c6ca8c1be3ef7345ff72cb7a">p_future_surface</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Pointer to the surface used as future reference. <a href="#ad186a2b2c6ca8c1be3ef7345ff72cb7a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a6d835e18579427c7fbe5b7987d01b764">picture_structure</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">top/bottom field or frame <a href="#a6d835e18579427c7fbe5b7987d01b764"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a2b23d0152e2f0391de5cd97517142899">flags</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">XVMC_SECOND_FIELD - 1st or 2nd field in the sequence. <a href="#a2b23d0152e2f0391de5cd97517142899"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#ae00f9d665842ed371cf005600f96a47c">start_mv_blocks_num</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Number of macroblock descriptions in the mv_blocks array that have already been passed to the hardware. <a href="#ae00f9d665842ed371cf005600f96a47c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a817e7fc6d7f524b51dd437ec5a841962">filled_mv_blocks_num</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Number of new macroblock descriptions in the mv_blocks array (after start_mv_blocks_num) that are filled by libavcodec and have to be passed to the hardware. <a href="#a817e7fc6d7f524b51dd437ec5a841962"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#af44880f97013d3b6a51705ceca7d10d7">next_free_data_block_num</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Number of the next free data block; one data block consists of 64 short values in the data_blocks array. <a href="#af44880f97013d3b6a51705ceca7d10d7"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock">
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00046">46</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
</div><hr/><h2>Field Documentation</h2>
<a class="anchor" id="a6cadfce3023ac1a8730e675629f21430"></a><!-- doxytag: member="xvmc_pix_fmt::xvmc_id" ref="a6cadfce3023ac1a8730e675629f21430" args="" -->
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<td class="memname">int <a class="el" href="structxvmc__pix__fmt.html#a6cadfce3023ac1a8730e675629f21430">xvmc_pix_fmt::xvmc_id</a></td>
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<p>The field contains the special constant value AV_XVMC_ID. </p>
<p>It is used as a test that the application correctly uses the API, and that there is no corruption caused by pixel routines.</p>
<ul>
<li>application - set during initialization</li>
<li>libavcodec - unchanged </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00053">53</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<a class="anchor" id="a194ffdefda2917100cedd71ce3ae6877"></a><!-- doxytag: member="xvmc_pix_fmt::data_blocks" ref="a194ffdefda2917100cedd71ce3ae6877" args="" -->
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<td class="memname">short* <a class="el" href="structxvmc__pix__fmt.html#a194ffdefda2917100cedd71ce3ae6877">xvmc_pix_fmt::data_blocks</a></td>
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<p>Pointer to the block array allocated by XvMCCreateBlocks(). </p>
<p>The array has to be freed by XvMCDestroyBlocks(). Each group of 64 values represents one data block of differential pixel information (in MoCo mode) or coefficients for IDCT.</p>
<ul>
<li>application - set the pointer during initialization</li>
<li>libavcodec - fills coefficients/pixel data into the array </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00062">62</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<td class="memname">XvMCMacroBlock* <a class="el" href="structxvmc__pix__fmt.html#ad83c1ceb45842ea0d4988f4b9b9e6483">xvmc_pix_fmt::mv_blocks</a></td>
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<p>Pointer to the macroblock description array allocated by XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks(). </p>
<ul>
<li>application - set the pointer during initialization</li>
<li>libavcodec - fills description data into the array </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00069">69</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<a class="anchor" id="a7cd4533356f2d7c753d706be423fc9a8"></a><!-- doxytag: member="xvmc_pix_fmt::allocated_mv_blocks" ref="a7cd4533356f2d7c753d706be423fc9a8" args="" -->
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<td class="memname">int <a class="el" href="structxvmc__pix__fmt.html#a7cd4533356f2d7c753d706be423fc9a8">xvmc_pix_fmt::allocated_mv_blocks</a></td>
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<p>Number of macroblock descriptions that can be stored in the mv_blocks array. </p>
<ul>
<li>application - set during initialization</li>
<li>libavcodec - unchanged </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00076">76</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<td class="memname">int <a class="el" href="structxvmc__pix__fmt.html#af3cade3f29f20d5145ec37da14919c90">xvmc_pix_fmt::allocated_data_blocks</a></td>
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<div class="memdoc">
<p>Number of blocks that can be stored at once in the data_blocks array. </p>
<ul>
<li>application - set during initialization</li>
<li>libavcodec - unchanged </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00082">82</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<a class="anchor" id="ac4b1077dca08f6e076840a8797b23d1c"></a><!-- doxytag: member="xvmc_pix_fmt::idct" ref="ac4b1077dca08f6e076840a8797b23d1c" args="" -->
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<td class="memname">int <a class="el" href="structxvmc__pix__fmt.html#ac4b1077dca08f6e076840a8797b23d1c">xvmc_pix_fmt::idct</a></td>
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<p>Indicate that the hardware would interpret data_blocks as IDCT coefficients and perform IDCT on them. </p>
<ul>
<li>application - set during initialization</li>
<li>libavcodec - unchanged </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00089">89</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<a class="anchor" id="a19d652ba10cd3efe9b0540fdd76cd580"></a><!-- doxytag: member="xvmc_pix_fmt::unsigned_intra" ref="a19d652ba10cd3efe9b0540fdd76cd580" args="" -->
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<td class="memname">int <a class="el" href="structxvmc__pix__fmt.html#a19d652ba10cd3efe9b0540fdd76cd580">xvmc_pix_fmt::unsigned_intra</a></td>
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<p>In MoCo mode it indicates that intra macroblocks are assumed to be in unsigned format; same as the XVMC_INTRA_UNSIGNED flag. </p>
<ul>
<li>application - set during initialization</li>
<li>libavcodec - unchanged </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00096">96</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<td class="memname">XvMCSurface* <a class="el" href="structxvmc__pix__fmt.html#a027005d198ee1a18b1c7f466df8b03c5">xvmc_pix_fmt::p_surface</a></td>
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<p>Pointer to the surface allocated by XvMCCreateSurface(). </p>
<p>It has to be freed by XvMCDestroySurface() on application exit. It identifies the frame and its state on the video hardware.</p>
<ul>
<li>application - set during initialization</li>
<li>libavcodec - unchanged </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00104">104</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<td class="memname">XvMCSurface* <a class="el" href="structxvmc__pix__fmt.html#a7cf41a3215c965c406a066e8cb6cb58b">xvmc_pix_fmt::p_past_surface</a></td>
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<p>Set by the decoder before calling ff_draw_horiz_band(), needed by the XvMCRenderSurface function. </p>
<p>Pointer to the surface used as past reference</p>
<ul>
<li>application - unchanged</li>
<li>libavcodec - set </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00113">113</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<td class="memname">XvMCSurface* <a class="el" href="structxvmc__pix__fmt.html#ad186a2b2c6ca8c1be3ef7345ff72cb7a">xvmc_pix_fmt::p_future_surface</a></td>
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<p>Pointer to the surface used as future reference. </p>
<ul>
<li>application - unchanged</li>
<li>libavcodec - set </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00119">119</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<td class="memname">unsigned int <a class="el" href="structxvmc__pix__fmt.html#a6d835e18579427c7fbe5b7987d01b764">xvmc_pix_fmt::picture_structure</a></td>
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<p>top/bottom field or frame </p>
<ul>
<li>application - unchanged</li>
<li>libavcodec - set </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00125">125</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<td class="memname">unsigned int <a class="el" href="structxvmc__pix__fmt.html#a2b23d0152e2f0391de5cd97517142899">xvmc_pix_fmt::flags</a></td>
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<p>XVMC_SECOND_FIELD - 1st or 2nd field in the sequence. </p>
<ul>
<li>application - unchanged</li>
<li>libavcodec - set </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00131">131</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<a class="anchor" id="ae00f9d665842ed371cf005600f96a47c"></a><!-- doxytag: member="xvmc_pix_fmt::start_mv_blocks_num" ref="ae00f9d665842ed371cf005600f96a47c" args="" -->
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<td class="memname">int <a class="el" href="structxvmc__pix__fmt.html#ae00f9d665842ed371cf005600f96a47c">xvmc_pix_fmt::start_mv_blocks_num</a></td>
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<p>Number of macroblock descriptions in the mv_blocks array that have already been passed to the hardware. </p>
<ul>
<li>application - zeroes it on get_buffer(). A successful ff_draw_horiz_band() may increment it with filled_mb_block_num or zero both.</li>
<li>libavcodec - unchanged </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00141">141</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<a class="anchor" id="a817e7fc6d7f524b51dd437ec5a841962"></a><!-- doxytag: member="xvmc_pix_fmt::filled_mv_blocks_num" ref="a817e7fc6d7f524b51dd437ec5a841962" args="" -->
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<td class="memname">int <a class="el" href="structxvmc__pix__fmt.html#a817e7fc6d7f524b51dd437ec5a841962">xvmc_pix_fmt::filled_mv_blocks_num</a></td>
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<p>Number of new macroblock descriptions in the mv_blocks array (after start_mv_blocks_num) that are filled by libavcodec and have to be passed to the hardware. </p>
<ul>
<li>application - zeroes it on get_buffer() or after successful ff_draw_horiz_band().</li>
<li>libavcodec - increment with one of each stored MB </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00150">150</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<td class="memname">int <a class="el" href="structxvmc__pix__fmt.html#af44880f97013d3b6a51705ceca7d10d7">xvmc_pix_fmt::next_free_data_block_num</a></td>
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<p>Number of the next free data block; one data block consists of 64 short values in the data_blocks array. </p>
<p>All blocks before this one have already been claimed by placing their position into the corresponding block description structure field, that are part of the mv_blocks array.</p>
<ul>
<li>application - zeroes it on get_buffer(). A successful ff_draw_horiz_band() may zero it together with start_mb_blocks_num.</li>
<li>libavcodec - each decoded macroblock increases it by the number of coded blocks it contains. </li>
</ul>
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00163">163</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>libavcodec/<a class="el" href="xvmc_8h_source.html">xvmc.h</a></li>
</ul>
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