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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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<p><code>#include &lt;<a class="el" href="xvmc_8h_source.html">xvmc.h</a>&gt;</code></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:a6cadfce3023ac1a8730e675629f21430"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a6cadfce3023ac1a8730e675629f21430">xvmc_id</a></td></tr>
<tr class="memdesc:a6cadfce3023ac1a8730e675629f21430"><td class="mdescLeft">&#160;</td><td class="mdescRight">The field contains the special constant value AV_XVMC_ID.  <a href="#a6cadfce3023ac1a8730e675629f21430">More...</a><br/></td></tr>
<tr class="separator:a6cadfce3023ac1a8730e675629f21430"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a194ffdefda2917100cedd71ce3ae6877"><td class="memItemLeft" align="right" valign="top">short *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a194ffdefda2917100cedd71ce3ae6877">data_blocks</a></td></tr>
<tr class="memdesc:a194ffdefda2917100cedd71ce3ae6877"><td class="mdescLeft">&#160;</td><td class="mdescRight">Pointer to the block array allocated by XvMCCreateBlocks().  <a href="#a194ffdefda2917100cedd71ce3ae6877">More...</a><br/></td></tr>
<tr class="separator:a194ffdefda2917100cedd71ce3ae6877"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad83c1ceb45842ea0d4988f4b9b9e6483"><td class="memItemLeft" align="right" valign="top">XvMCMacroBlock *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#ad83c1ceb45842ea0d4988f4b9b9e6483">mv_blocks</a></td></tr>
<tr class="memdesc:ad83c1ceb45842ea0d4988f4b9b9e6483"><td class="mdescLeft">&#160;</td><td class="mdescRight">Pointer to the macroblock description array allocated by XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks().  <a href="#ad83c1ceb45842ea0d4988f4b9b9e6483">More...</a><br/></td></tr>
<tr class="separator:ad83c1ceb45842ea0d4988f4b9b9e6483"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7cd4533356f2d7c753d706be423fc9a8"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a7cd4533356f2d7c753d706be423fc9a8">allocated_mv_blocks</a></td></tr>
<tr class="memdesc:a7cd4533356f2d7c753d706be423fc9a8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Number of macroblock descriptions that can be stored in the mv_blocks array.  <a href="#a7cd4533356f2d7c753d706be423fc9a8">More...</a><br/></td></tr>
<tr class="separator:a7cd4533356f2d7c753d706be423fc9a8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af3cade3f29f20d5145ec37da14919c90"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#af3cade3f29f20d5145ec37da14919c90">allocated_data_blocks</a></td></tr>
<tr class="memdesc:af3cade3f29f20d5145ec37da14919c90"><td class="mdescLeft">&#160;</td><td class="mdescRight">Number of blocks that can be stored at once in the data_blocks array.  <a href="#af3cade3f29f20d5145ec37da14919c90">More...</a><br/></td></tr>
<tr class="separator:af3cade3f29f20d5145ec37da14919c90"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac4b1077dca08f6e076840a8797b23d1c"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#ac4b1077dca08f6e076840a8797b23d1c">idct</a></td></tr>
<tr class="memdesc:ac4b1077dca08f6e076840a8797b23d1c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Indicate that the hardware would interpret data_blocks as IDCT coefficients and perform IDCT on them.  <a href="#ac4b1077dca08f6e076840a8797b23d1c">More...</a><br/></td></tr>
<tr class="separator:ac4b1077dca08f6e076840a8797b23d1c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a19d652ba10cd3efe9b0540fdd76cd580"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a19d652ba10cd3efe9b0540fdd76cd580">unsigned_intra</a></td></tr>
<tr class="memdesc:a19d652ba10cd3efe9b0540fdd76cd580"><td class="mdescLeft">&#160;</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">More...</a><br/></td></tr>
<tr class="separator:a19d652ba10cd3efe9b0540fdd76cd580"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a027005d198ee1a18b1c7f466df8b03c5"><td class="memItemLeft" align="right" valign="top">XvMCSurface *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a027005d198ee1a18b1c7f466df8b03c5">p_surface</a></td></tr>
<tr class="memdesc:a027005d198ee1a18b1c7f466df8b03c5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Pointer to the surface allocated by XvMCCreateSurface().  <a href="#a027005d198ee1a18b1c7f466df8b03c5">More...</a><br/></td></tr>
<tr class="separator:a027005d198ee1a18b1c7f466df8b03c5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr class="memitem:a7cf41a3215c965c406a066e8cb6cb58b"><td class="memItemLeft" align="right" valign="top">XvMCSurface *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a7cf41a3215c965c406a066e8cb6cb58b">p_past_surface</a></td></tr>
<tr class="memdesc:a7cf41a3215c965c406a066e8cb6cb58b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set by the decoder before calling ff_draw_horiz_band(), needed by the XvMCRenderSurface function.  <a href="#a7cf41a3215c965c406a066e8cb6cb58b">More...</a><br/></td></tr>
<tr class="separator:a7cf41a3215c965c406a066e8cb6cb58b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad186a2b2c6ca8c1be3ef7345ff72cb7a"><td class="memItemLeft" align="right" valign="top">XvMCSurface *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#ad186a2b2c6ca8c1be3ef7345ff72cb7a">p_future_surface</a></td></tr>
<tr class="memdesc:ad186a2b2c6ca8c1be3ef7345ff72cb7a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Pointer to the surface used as future reference.  <a href="#ad186a2b2c6ca8c1be3ef7345ff72cb7a">More...</a><br/></td></tr>
<tr class="separator:ad186a2b2c6ca8c1be3ef7345ff72cb7a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6d835e18579427c7fbe5b7987d01b764"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a6d835e18579427c7fbe5b7987d01b764">picture_structure</a></td></tr>
<tr class="memdesc:a6d835e18579427c7fbe5b7987d01b764"><td class="mdescLeft">&#160;</td><td class="mdescRight">top/bottom field or frame  <a href="#a6d835e18579427c7fbe5b7987d01b764">More...</a><br/></td></tr>
<tr class="separator:a6d835e18579427c7fbe5b7987d01b764"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2b23d0152e2f0391de5cd97517142899"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a2b23d0152e2f0391de5cd97517142899">flags</a></td></tr>
<tr class="memdesc:a2b23d0152e2f0391de5cd97517142899"><td class="mdescLeft">&#160;</td><td class="mdescRight">XVMC_SECOND_FIELD - 1st or 2nd field in the sequence.  <a href="#a2b23d0152e2f0391de5cd97517142899">More...</a><br/></td></tr>
<tr class="separator:a2b23d0152e2f0391de5cd97517142899"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae00f9d665842ed371cf005600f96a47c"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#ae00f9d665842ed371cf005600f96a47c">start_mv_blocks_num</a></td></tr>
<tr class="memdesc:ae00f9d665842ed371cf005600f96a47c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Number of macroblock descriptions in the mv_blocks array that have already been passed to the hardware.  <a href="#ae00f9d665842ed371cf005600f96a47c">More...</a><br/></td></tr>
<tr class="separator:ae00f9d665842ed371cf005600f96a47c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a817e7fc6d7f524b51dd437ec5a841962"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#a817e7fc6d7f524b51dd437ec5a841962">filled_mv_blocks_num</a></td></tr>
<tr class="memdesc:a817e7fc6d7f524b51dd437ec5a841962"><td class="mdescLeft">&#160;</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">More...</a><br/></td></tr>
<tr class="separator:a817e7fc6d7f524b51dd437ec5a841962"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af44880f97013d3b6a51705ceca7d10d7"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structxvmc__pix__fmt.html#af44880f97013d3b6a51705ceca7d10d7">next_free_data_block_num</a></td></tr>
<tr class="memdesc:af44880f97013d3b6a51705ceca7d10d7"><td class="mdescLeft">&#160;</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">More...</a><br/></td></tr>
<tr class="separator:af44880f97013d3b6a51705ceca7d10d7"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock">
<p>Definition at line <a class="el" href="xvmc_8h_source.html#l00047">47</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>
</div><h2 class="groupheader">Field Documentation</h2>
<a class="anchor" id="a6cadfce3023ac1a8730e675629f21430"></a>
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          <td class="memname">int xvmc_pix_fmt::xvmc_id</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#l00054">54</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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          <td class="memname">short* xvmc_pix_fmt::data_blocks</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#l00063">63</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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          <td class="memname">XvMCMacroBlock* xvmc_pix_fmt::mv_blocks</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#l00070">70</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00077">77</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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<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#l00083">83</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00090">90</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00097">97</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00105">105</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00114">114</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00120">120</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00126">126</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00132">132</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00142">142</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00151">151</a> of file <a class="el" href="xvmc_8h_source.html">xvmc.h</a>.</p>

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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#l00164">164</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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