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<div id="projectname">NVIDIA 2D Image And Signal Performance Primitives (NPP)
 <span id="projectnumber">Version 10.1.1</span>
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<a href="#pub-attribs">Data Fields</a> </div>
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<div class="title">NppiJpegFrameDescr Struct Reference<div class="ingroups"><a class="el" href="group__image__compression.html">Compression</a></div></div> </div>
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<p>JPEG frame descriptor.
<a href="struct_nppi_jpeg_frame_descr.html#details">More...</a></p>
<p><code>#include <<a class="el" href="nppi__compression__functions_8h_source.html">nppi_compression_functions.h</a>></code></p>
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Data Fields</h2></td></tr>
<tr class="memitem:abb9b3cdb9c885376e23049df3c28ad46"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_nppi_jpeg_frame_descr.html#abb9b3cdb9c885376e23049df3c28ad46">nComponents</a></td></tr>
<tr class="memdesc:abb9b3cdb9c885376e23049df3c28ad46"><td class="mdescLeft"> </td><td class="mdescRight">Number of components in frame. <a href="#abb9b3cdb9c885376e23049df3c28ad46">More...</a><br/></td></tr>
<tr class="separator:abb9b3cdb9c885376e23049df3c28ad46"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adc730f235cdd63c15c2ae0d7b4fdc9f7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="struct_nppi_size.html">NppiSize</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_nppi_jpeg_frame_descr.html#adc730f235cdd63c15c2ae0d7b4fdc9f7">oSizeInBlocks</a></td></tr>
<tr class="memdesc:adc730f235cdd63c15c2ae0d7b4fdc9f7"><td class="mdescLeft"> </td><td class="mdescRight">Size of component with 1x1 subsampling (usually luma) in DCT blocks. <a href="#adc730f235cdd63c15c2ae0d7b4fdc9f7">More...</a><br/></td></tr>
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<tr class="memitem:aa47c6976b2718d28452271e40e51fac3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="struct_nppi_size.html">NppiSize</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_nppi_jpeg_frame_descr.html#aa47c6976b2718d28452271e40e51fac3">aComponentSubsampling</a> [4]</td></tr>
<tr class="memdesc:aa47c6976b2718d28452271e40e51fac3"><td class="mdescLeft"> </td><td class="mdescRight">Subsampling factors of component, as described in frame header. <a href="#aa47c6976b2718d28452271e40e51fac3">More...</a><br/></td></tr>
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<tr class="memitem:abcd7b775c7365ce87db8a4107b0c3f60"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__npp__basic__types.html#ga2eea681138ed3607f6a540f8a1c73b85">Npp16s</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_nppi_jpeg_frame_descr.html#abcd7b775c7365ce87db8a4107b0c3f60">apComponentBuffer</a> [4]</td></tr>
<tr class="memdesc:abcd7b775c7365ce87db8a4107b0c3f60"><td class="mdescLeft"> </td><td class="mdescRight">Buffer containing DCT coefficients. <a href="#abcd7b775c7365ce87db8a4107b0c3f60">More...</a><br/></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>JPEG frame descriptor. </p>
<p>Can hold from 1 to 4 components. </p>
</div><h2 class="groupheader">Field Documentation</h2>
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<td class="memname"><a class="el" href="struct_nppi_size.html">NppiSize</a> NppiJpegFrameDescr::aComponentSubsampling[4]</td>
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<p>Subsampling factors of component, as described in frame header. </p>
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<td class="memname"><a class="el" href="group__npp__basic__types.html#ga2eea681138ed3607f6a540f8a1c73b85">Npp16s</a>* NppiJpegFrameDescr::apComponentBuffer[4]</td>
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<p>Buffer containing DCT coefficients. </p>
<p>Use <a class="el" href="group__image__compression.html#ga2a42d33eb7c0a288073c828476a58ced">nppiJpegDecodeGetDCTBufferSize</a> to determine size of this buffer. After decoding, coefficients will be stored in zig-zag order, block by block. So the c-th coeffient of block <code>(x, y)</code> will be stored at <code>buffer[64 * (y * interleavedComponentWidthInBlocks + x) + c]</code>. </p>
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<td class="memname"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> NppiJpegFrameDescr::nComponents</td>
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<p>Number of components in frame. </p>
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<td class="memname"><a class="el" href="struct_nppi_size.html">NppiSize</a> NppiJpegFrameDescr::oSizeInBlocks</td>
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<p>Size of component with 1x1 subsampling (usually luma) in DCT blocks. </p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>C:/src/sw/rel/gpgpu/toolkit/r10.1/NPP/npp/include/<a class="el" href="nppi__compression__functions_8h_source.html">nppi_compression_functions.h</a></li>
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