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<div class="title">Color handling</div> </div>
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<tr><td colspan="2"><h2><a name="define-members"></a>
Defines</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga945c2341e12eb1a9baad5844e851746b">BC_RGB565</a>   2</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gada8983e541c62bb195f1e94a2ba18b9d">BC_BGR565</a>   3</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga50de57e7d6e7a4042c0bcb4aa824a3c0">BC_BGR888</a>   4</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gac3ec15bef87f60840e342d0a359cb088">BC_BGR8888</a>   5</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gaaec2dd466403410fc4daa417ec2ab6c6">BC_RGB888</a>   6</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga27c5ec4934a8fd3590a186c031426702">BC_RGBA8888</a>   7</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga0db9d18202d091b1542697851dcb6c58">BC_RGB161616</a>   8</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga8f7950a15f4fd3180e7238101176f817">BC_RGBA16161616</a>   9</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gaa1b06526031c14815566cd944963adb4">BC_YUVA8888</a>   10</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga9854a8f5bd49fe535624c37a15b81128">BC_YUV422</a>   13</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gab4583749c1106aef4b0c13d1710c7ac3">BC_YUV420P</a>   14</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga0d7eed5ffd41f3528b0c8ba97ee35e06">BC_YUV422P</a>   15</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gaf4520fe86245d3134aaf9d3ddcf728bf">BC_YUV444P</a>   16</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga1c06a3a83d7ca0ef29b2a913b6995ad1">BC_YUV411P</a>   17</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga0996b15349a538dcadb8adb40daf1657">BC_YUVJ420P</a>   18</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga8e74c98804b21c966b8e61130bc89516">BC_YUVJ422P</a>   19</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gaf31d62bbd2b1e8bc47f170b9b89daf49">BC_YUVJ444P</a>   20</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gadf49d0f6c48bad10fd59d995cfc6109a">BC_YUV422P16</a>   21</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga85a2bde828e96b9d0db53e28803e4ec7">BC_YUV444P16</a>   22</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga942d9eb46460b14d451d05483089d8ca">LQT_COLORMODEL_NONE</a>   -1</td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga2e3811219333b5193e1078459b78da6a">lqt_colormodel_to_string</a> (int colormodel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Convert a colormodel to a human readable string. <a href="#ga2e3811219333b5193e1078459b78da6a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gae26c1c9f82ea5d9741feaabaf9b9c493">lqt_string_to_colormodel</a> (const char *str)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Convert a description string to a colormodel. <a href="#gae26c1c9f82ea5d9741feaabaf9b9c493"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gab8dbf96c67abf4a98e94a00e02d11188">lqt_colormodel_is_planar</a> (int colormodel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Check if a colormodel is planar. <a href="#gab8dbf96c67abf4a98e94a00e02d11188"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga06fd25b090ccdcc57ae90ee4aa7cd78b">lqt_colormodel_has_alpha</a> (int colormodel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Check if a colormodel has an alpha (transperency) channel. <a href="#ga06fd25b090ccdcc57ae90ee4aa7cd78b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gaf5f7a279dbad2307cddf7333d35e3db9">lqt_colormodel_is_rgb</a> (int colormodel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Check, if a colormodel is RGB based. <a href="#gaf5f7a279dbad2307cddf7333d35e3db9"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gacb9d9b1d82fe6e5afa517467fc204fcc">lqt_colormodel_is_yuv</a> (int colormodel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Check, if a colormodel is YUV based. <a href="#gacb9d9b1d82fe6e5afa517467fc204fcc"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gad658d0626460a239ead7c322bc8249b9">lqt_colormodel_get_chroma_sub</a> (int colormodel, int *sub_h, int *sub_v)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the chroma subsampling factors. <a href="#gad658d0626460a239ead7c322bc8249b9"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gad8ff9f9697ce3a7f513e12734d533a61">lqt_get_default_rowspan</a> (int colormodel, int width, int *rowspan, int *rowspan_uv)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the default row span for a colormodel and an image width. <a href="#gad8ff9f9697ce3a7f513e12734d533a61"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga26e92d17dd935fad1f121dabba028ad5">lqt_colormodel_has_conversion</a> (int in_cmodel, int out_cmodel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Check if a colormodel conversion is supported by libquicktime. <a href="#ga26e92d17dd935fad1f121dabba028ad5"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga54991b74c721fe85f9d97d88ec019e62">lqt_num_colormodels</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get number of supported colormodels. <a href="#ga54991b74c721fe85f9d97d88ec019e62"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga8647bebf01b05d3105dab7dfbf74de89">lqt_get_colormodel_string</a> (int index)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get a colormodel string. <a href="#ga8647bebf01b05d3105dab7dfbf74de89"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#gaec06e1abe7b5b0429db256e7001c7eb0">lqt_get_colormodel</a> (int index)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get a colormodel. <a href="#gaec06e1abe7b5b0429db256e7001c7eb0"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga9e5f2fc3458e11fc35ecf778b1ba26b2">lqt_get_best_source_colormodel</a> (int const *source_options, int target)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Select a source colormodel from a provided list that is best for conversion into a specified target colormodel. <a href="#ga9e5f2fc3458e11fc35ecf778b1ba26b2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__color.html#ga33d7eba2d1c07ad0f5cf681561acbc17">lqt_get_best_target_colormodel</a> (int source, int const *target_options)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Select a target colormodel from a provided list that is best for conversion from a specified source colormodel. <a href="#ga33d7eba2d1c07ad0f5cf681561acbc17"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<p>Libquicktime has a built in colormodel converter, which can do implicit colormodel conversions while en-/decoding. It is, however, far from perfect: It is incomplete (i.e. not all conversions are present), slow and sometimes inaccurate. Therefore, there is a possibility to bypass internal colormodel conversions. </p>
<hr/><h2>Define Documentation</h2>
<a class="anchor" id="ga945c2341e12eb1a9baad5844e851746b"></a><!-- doxytag: member="colormodels.h::BC_RGB565" ref="ga945c2341e12eb1a9baad5844e851746b" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga945c2341e12eb1a9baad5844e851746b">BC_RGB565</a>   2</td>
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<p>16 bit RGB. Each pixel is a uint16_t in native byte order. Color masks are: for red: 0xf800, for green: 0x07e0, for blue: 0x001f </p>
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<a class="anchor" id="gada8983e541c62bb195f1e94a2ba18b9d"></a><!-- doxytag: member="colormodels.h::BC_BGR565" ref="gada8983e541c62bb195f1e94a2ba18b9d" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#gada8983e541c62bb195f1e94a2ba18b9d">BC_BGR565</a>   3</td>
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<p>16 bit BGR. Each pixel is a uint16_t in native byte order. Color masks are: for red: 0x001f, for green: 0x07e0, for blue: 0xf800 </p>
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<a class="anchor" id="ga50de57e7d6e7a4042c0bcb4aa824a3c0"></a><!-- doxytag: member="colormodels.h::BC_BGR888" ref="ga50de57e7d6e7a4042c0bcb4aa824a3c0" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga50de57e7d6e7a4042c0bcb4aa824a3c0">BC_BGR888</a>   4</td>
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<p>24 bit BGR. Each color is an uint8_t. Color order is BGR </p>
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<a class="anchor" id="gac3ec15bef87f60840e342d0a359cb088"></a><!-- doxytag: member="colormodels.h::BC_BGR8888" ref="gac3ec15bef87f60840e342d0a359cb088" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#gac3ec15bef87f60840e342d0a359cb088">BC_BGR8888</a>   5</td>
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<p>32 bit BGR. Each color is an uint8_t. Color order is BGRXBGRX, where X is unused </p>
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<a class="anchor" id="gaaec2dd466403410fc4daa417ec2ab6c6"></a><!-- doxytag: member="colormodels.h::BC_RGB888" ref="gaaec2dd466403410fc4daa417ec2ab6c6" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#gaaec2dd466403410fc4daa417ec2ab6c6">BC_RGB888</a>   6</td>
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<p>24 bit RGB. Each color is an uint8_t. Color order is RGB </p>
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<a class="anchor" id="ga27c5ec4934a8fd3590a186c031426702"></a><!-- doxytag: member="colormodels.h::BC_RGBA8888" ref="ga27c5ec4934a8fd3590a186c031426702" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga27c5ec4934a8fd3590a186c031426702">BC_RGBA8888</a>   7</td>
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<p>32 bit RGBA. Each color is an uint8_t. Color order is RGBARGBA </p>
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<a class="anchor" id="ga0db9d18202d091b1542697851dcb6c58"></a><!-- doxytag: member="colormodels.h::BC_RGB161616" ref="ga0db9d18202d091b1542697851dcb6c58" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga0db9d18202d091b1542697851dcb6c58">BC_RGB161616</a>   8</td>
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<p>48 bit RGB. Each color is an uint16_t in native byte order. Color order is RGB </p>
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<a class="anchor" id="ga8f7950a15f4fd3180e7238101176f817"></a><!-- doxytag: member="colormodels.h::BC_RGBA16161616" ref="ga8f7950a15f4fd3180e7238101176f817" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga8f7950a15f4fd3180e7238101176f817">BC_RGBA16161616</a>   9</td>
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<p>64 bit RGBA. Each color is an uint16_t in native byte order. Color order is RGBA </p>
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<a class="anchor" id="gaa1b06526031c14815566cd944963adb4"></a><!-- doxytag: member="colormodels.h::BC_YUVA8888" ref="gaa1b06526031c14815566cd944963adb4" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#gaa1b06526031c14815566cd944963adb4">BC_YUVA8888</a>   10</td>
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<p>Packed YCbCrA 4:4:4:4. Each component is an uint8_t. Component order is YUVA </p>
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<a class="anchor" id="ga9854a8f5bd49fe535624c37a15b81128"></a><!-- doxytag: member="colormodels.h::BC_YUV422" ref="ga9854a8f5bd49fe535624c37a15b81128" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga9854a8f5bd49fe535624c37a15b81128">BC_YUV422</a>   13</td>
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<p>Packed YCbCr 4:2:2. Each component is an uint8_t. Component order is Y1 U1 Y2 V1 </p>
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<a class="anchor" id="gab4583749c1106aef4b0c13d1710c7ac3"></a><!-- doxytag: member="colormodels.h::BC_YUV420P" ref="gab4583749c1106aef4b0c13d1710c7ac3" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#gab4583749c1106aef4b0c13d1710c7ac3">BC_YUV420P</a>   14</td>
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<p>Planar YCbCr 4:2:0. Each component is an uint8_t. Chroma placement is defined by <a class="el" href="group__video.html#ga29e261e843838c4509b4223e7a825516">lqt_chroma_placement_t</a> </p>
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<a class="anchor" id="ga0d7eed5ffd41f3528b0c8ba97ee35e06"></a><!-- doxytag: member="colormodels.h::BC_YUV422P" ref="ga0d7eed5ffd41f3528b0c8ba97ee35e06" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga0d7eed5ffd41f3528b0c8ba97ee35e06">BC_YUV422P</a>   15</td>
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<p>Planar YCbCr 4:2:2. Each component is an uint8_t </p>
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<a class="anchor" id="gaf4520fe86245d3134aaf9d3ddcf728bf"></a><!-- doxytag: member="colormodels.h::BC_YUV444P" ref="gaf4520fe86245d3134aaf9d3ddcf728bf" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#gaf4520fe86245d3134aaf9d3ddcf728bf">BC_YUV444P</a>   16</td>
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<p>Planar YCbCr 4:4:4. Each component is an uint8_t </p>
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<a class="anchor" id="ga1c06a3a83d7ca0ef29b2a913b6995ad1"></a><!-- doxytag: member="colormodels.h::BC_YUV411P" ref="ga1c06a3a83d7ca0ef29b2a913b6995ad1" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga1c06a3a83d7ca0ef29b2a913b6995ad1">BC_YUV411P</a>   17</td>
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<p>Planar YCbCr 4:1:1. Each component is an uint8_t </p>
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<a class="anchor" id="ga0996b15349a538dcadb8adb40daf1657"></a><!-- doxytag: member="colormodels.h::BC_YUVJ420P" ref="ga0996b15349a538dcadb8adb40daf1657" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga0996b15349a538dcadb8adb40daf1657">BC_YUVJ420P</a>   18</td>
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<p>Planar YCbCr 4:2:0. Each component is an uint8_t, luma and chroma values are full range (0x00 .. 0xff) </p>
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<a class="anchor" id="ga8e74c98804b21c966b8e61130bc89516"></a><!-- doxytag: member="colormodels.h::BC_YUVJ422P" ref="ga8e74c98804b21c966b8e61130bc89516" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga8e74c98804b21c966b8e61130bc89516">BC_YUVJ422P</a>   19</td>
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<p>Planar YCbCr 4:2:2. Each component is an uint8_t, luma and chroma values are full range (0x00 .. 0xff) </p>
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<a class="anchor" id="gaf31d62bbd2b1e8bc47f170b9b89daf49"></a><!-- doxytag: member="colormodels.h::BC_YUVJ444P" ref="gaf31d62bbd2b1e8bc47f170b9b89daf49" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#gaf31d62bbd2b1e8bc47f170b9b89daf49">BC_YUVJ444P</a>   20</td>
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<p>Planar YCbCr 4:4:4. Each component is an uint8_t, luma and chroma values are full range (0x00 .. 0xff) </p>
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<a class="anchor" id="gadf49d0f6c48bad10fd59d995cfc6109a"></a><!-- doxytag: member="colormodels.h::BC_YUV422P16" ref="gadf49d0f6c48bad10fd59d995cfc6109a" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#gadf49d0f6c48bad10fd59d995cfc6109a">BC_YUV422P16</a>   21</td>
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<p>16 bit Planar YCbCr 4:2:2. Each component is an uint16_t in native byte order. </p>
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<a class="anchor" id="ga85a2bde828e96b9d0db53e28803e4ec7"></a><!-- doxytag: member="colormodels.h::BC_YUV444P16" ref="ga85a2bde828e96b9d0db53e28803e4ec7" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga85a2bde828e96b9d0db53e28803e4ec7">BC_YUV444P16</a>   22</td>
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<p>16 bit Planar YCbCr 4:4:4. Each component is an uint16_t in native byte order. </p>
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<a class="anchor" id="ga942d9eb46460b14d451d05483089d8ca"></a><!-- doxytag: member="lqt.h::LQT_COLORMODEL_NONE" ref="ga942d9eb46460b14d451d05483089d8ca" args="" -->
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<td class="memname">#define <a class="el" href="group__color.html#ga942d9eb46460b14d451d05483089d8ca">LQT_COLORMODEL_NONE</a>   -1</td>
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<p>This value is used for termination of colormodel arrays </p>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="ga2e3811219333b5193e1078459b78da6a"></a><!-- doxytag: member="lqt.h::lqt_colormodel_to_string" ref="ga2e3811219333b5193e1078459b78da6a" args="(int colormodel)" -->
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<td class="memname">const char* <a class="el" href="group__color.html#ga2e3811219333b5193e1078459b78da6a">lqt_colormodel_to_string</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>colormodel</em></td><td>)</td>
<td></td>
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<p>Convert a colormodel to a human readable string. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">colormodel</td><td>A colormodel </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>A description of the colormodel </dd></dl>
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</div>
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<td class="memname">int <a class="el" href="group__color.html#gae26c1c9f82ea5d9741feaabaf9b9c493">lqt_string_to_colormodel</a> </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>str</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Convert a description string to a colormodel. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>A colormodel description (as returned by <a class="el" href="group__color.html#ga2e3811219333b5193e1078459b78da6a">lqt_colormodel_to_string</a>) </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>The corresponding colormodel or <a class="el" href="group__color.html#ga942d9eb46460b14d451d05483089d8ca">LQT_COLORMODEL_NONE</a> </dd></dl>
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<a class="anchor" id="gab8dbf96c67abf4a98e94a00e02d11188"></a><!-- doxytag: member="lqt.h::lqt_colormodel_is_planar" ref="gab8dbf96c67abf4a98e94a00e02d11188" args="(int colormodel)" -->
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<td class="memname">int <a class="el" href="group__color.html#gab8dbf96c67abf4a98e94a00e02d11188">lqt_colormodel_is_planar</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>colormodel</em></td><td>)</td>
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<p>Check if a colormodel is planar. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">colormodel</td><td>A colormodel </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>1 if the colormodel is planar, 0 else </dd></dl>
</div>
</div>
<a class="anchor" id="ga06fd25b090ccdcc57ae90ee4aa7cd78b"></a><!-- doxytag: member="lqt.h::lqt_colormodel_has_alpha" ref="ga06fd25b090ccdcc57ae90ee4aa7cd78b" args="(int colormodel)" -->
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<td class="memname">int <a class="el" href="group__color.html#ga06fd25b090ccdcc57ae90ee4aa7cd78b">lqt_colormodel_has_alpha</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>colormodel</em></td><td>)</td>
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<p>Check if a colormodel has an alpha (transperency) channel. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">colormodel</td><td>A colormodel </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>1 if the colormodel has an alpha channel, 0 else </dd></dl>
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<a class="anchor" id="gaf5f7a279dbad2307cddf7333d35e3db9"></a><!-- doxytag: member="lqt.h::lqt_colormodel_is_rgb" ref="gaf5f7a279dbad2307cddf7333d35e3db9" args="(int colormodel)" -->
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<td class="memname">int <a class="el" href="group__color.html#gaf5f7a279dbad2307cddf7333d35e3db9">lqt_colormodel_is_rgb</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>colormodel</em></td><td>)</td>
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<p>Check, if a colormodel is RGB based. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">colormodel</td><td>A colormodel </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>1 if the colormodel is RGB based, 0 else </dd></dl>
</div>
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<a class="anchor" id="gacb9d9b1d82fe6e5afa517467fc204fcc"></a><!-- doxytag: member="lqt.h::lqt_colormodel_is_yuv" ref="gacb9d9b1d82fe6e5afa517467fc204fcc" args="(int colormodel)" -->
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<td class="memname">int <a class="el" href="group__color.html#gacb9d9b1d82fe6e5afa517467fc204fcc">lqt_colormodel_is_yuv</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>colormodel</em></td><td>)</td>
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<p>Check, if a colormodel is YUV based. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">colormodel</td><td>A colormodel </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>1 if the colormodel is YUV based, 0 else </dd></dl>
</div>
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<a class="anchor" id="gad658d0626460a239ead7c322bc8249b9"></a><!-- doxytag: member="lqt.h::lqt_colormodel_get_chroma_sub" ref="gad658d0626460a239ead7c322bc8249b9" args="(int colormodel, int *sub_h, int *sub_v)" -->
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<td class="memname">void <a class="el" href="group__color.html#gad658d0626460a239ead7c322bc8249b9">lqt_colormodel_get_chroma_sub</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>colormodel</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>sub_h</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>sub_v</em> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<div class="memdoc">
<p>Get the chroma subsampling factors. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">colormodel</td><td>A colormodel </td></tr>
<tr><td class="paramname">sub_h</td><td>Returns the horizontal subsampling factor </td></tr>
<tr><td class="paramname">sub_v</td><td>Returns the vertical subsampling factor </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="gad8ff9f9697ce3a7f513e12734d533a61"></a><!-- doxytag: member="lqt.h::lqt_get_default_rowspan" ref="gad8ff9f9697ce3a7f513e12734d533a61" args="(int colormodel, int width, int *rowspan, int *rowspan_uv)" -->
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<td class="memname">void <a class="el" href="group__color.html#gad8ff9f9697ce3a7f513e12734d533a61">lqt_get_default_rowspan</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>colormodel</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>width</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>rowspan</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>rowspan_uv</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<p>Get the default row span for a colormodel and an image width. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">colormodel</td><td>A colormodel </td></tr>
<tr><td class="paramname">width</td><td>Image width </td></tr>
<tr><td class="paramname">rowspan</td><td>Returns the rowspan for the luminance (Y) plane </td></tr>
<tr><td class="paramname">rowspan_uv</td><td>Returns the rowspan for the chrominance (U/V) planes</td></tr>
</table>
</dd>
</dl>
<p>The rowspan is the byte offset between scanlines. It can be calculated from the colormodel and the image width. Some APIs however, padd the scanlines to certain boundaries, so the rowspans might become larger here (see <a class="el" href="group__video.html#ga74cb491bf21df93ba971caf92d641a98">lqt_set_row_span</a> and <a class="el" href="group__video.html#ga65538f230c191a361ca894883e7e3752">lqt_set_row_span_uv</a>). </p>
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<a class="anchor" id="ga26e92d17dd935fad1f121dabba028ad5"></a><!-- doxytag: member="lqt.h::lqt_colormodel_has_conversion" ref="ga26e92d17dd935fad1f121dabba028ad5" args="(int in_cmodel, int out_cmodel)" -->
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<td class="memname">int <a class="el" href="group__color.html#ga26e92d17dd935fad1f121dabba028ad5">lqt_colormodel_has_conversion</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>in_cmodel</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>out_cmodel</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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<div class="memdoc">
<p>Check if a colormodel conversion is supported by libquicktime. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">in_cmodel</td><td>Input colormodel </td></tr>
<tr><td class="paramname">out_cmodel</td><td>Output colormodel </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>1 if the requested conversion is possible, 0 else</dd></dl>
<p>As noted before, the colormodel converter is not complete, and this function checks it. As a fallback, conversions from and to <a class="el" href="group__color.html#gaaec2dd466403410fc4daa417ec2ab6c6">BC_RGB888</a> are always supported. If you need a converison, which is not present, contact the authors for hints how to write it :) </p>
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<a class="anchor" id="ga54991b74c721fe85f9d97d88ec019e62"></a><!-- doxytag: member="lqt.h::lqt_num_colormodels" ref="ga54991b74c721fe85f9d97d88ec019e62" args="()" -->
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<td class="memname">int <a class="el" href="group__color.html#ga54991b74c721fe85f9d97d88ec019e62">lqt_num_colormodels</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<p>Get number of supported colormodels. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The number of colormodels known to your version of libquicktime </dd></dl>
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<a class="anchor" id="ga8647bebf01b05d3105dab7dfbf74de89"></a><!-- doxytag: member="lqt.h::lqt_get_colormodel_string" ref="ga8647bebf01b05d3105dab7dfbf74de89" args="(int index)" -->
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<td class="memname">const char* <a class="el" href="group__color.html#ga8647bebf01b05d3105dab7dfbf74de89">lqt_get_colormodel_string</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>index</em></td><td>)</td>
<td></td>
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<p>Get a colormodel string. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">index</td><td>Index of the colormodel (between 0 and the return value of <a class="el" href="group__color.html#ga54991b74c721fe85f9d97d88ec019e62">lqt_num_colormodels</a> - 1) </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>A description of the colormodel according to index or NULL. </dd></dl>
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<td class="memname">int <a class="el" href="group__color.html#gaec06e1abe7b5b0429db256e7001c7eb0">lqt_get_colormodel</a> </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>index</em></td><td>)</td>
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<p>Get a colormodel. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
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<tr><td class="paramname">index</td><td>Index of the colormodel (between 0 and the return value of <a class="el" href="group__color.html#ga54991b74c721fe85f9d97d88ec019e62">lqt_num_colormodels</a> - 1) </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>The colormodel according to index or <a class="el" href="group__color.html#ga942d9eb46460b14d451d05483089d8ca">LQT_COLORMODEL_NONE</a> </dd></dl>
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<a class="anchor" id="ga9e5f2fc3458e11fc35ecf778b1ba26b2"></a><!-- doxytag: member="lqt.h::lqt_get_best_source_colormodel" ref="ga9e5f2fc3458e11fc35ecf778b1ba26b2" args="(int const *source_options, int target)" -->
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<td class="memname">int <a class="el" href="group__color.html#ga9e5f2fc3458e11fc35ecf778b1ba26b2">lqt_get_best_source_colormodel</a> </td>
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<td class="paramtype">int const * </td>
<td class="paramname"><em>source_options</em>, </td>
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<td class="paramtype">int </td>
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<p>Select a source colormodel from a provided list that is best for conversion into a specified target colormodel. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
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<tr><td class="paramname">source_options</td><td>An array of source colormodels to select from. Must be terminated with LQT_COLORMODEL_NODE. </td></tr>
<tr><td class="paramname">target</td><td>The target colormodel. </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>A colormodel from <code>source_options</code> or LQT_COLORMODEL_NONE, if none of the source colormodels can be converted to the target one. </dd></dl>
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<a class="anchor" id="ga33d7eba2d1c07ad0f5cf681561acbc17"></a><!-- doxytag: member="lqt.h::lqt_get_best_target_colormodel" ref="ga33d7eba2d1c07ad0f5cf681561acbc17" args="(int source, int const *target_options)" -->
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<td class="memname">int <a class="el" href="group__color.html#ga33d7eba2d1c07ad0f5cf681561acbc17">lqt_get_best_target_colormodel</a> </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>source</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int const * </td>
<td class="paramname"><em>target_options</em> </td>
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<p>Select a target colormodel from a provided list that is best for conversion from a specified source colormodel. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">source</td><td>The source colormodel. </td></tr>
<tr><td class="paramname">target_options</td><td>An array of target colormodels to select from. Must be terminated with LQT_COLORMODEL_NODE. </td></tr>
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</dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>A colormodel from <code>target_options</code> or LQT_COLORMODEL_NONE, if the source colormodel can't be converted to any of the target ones. </dd></dl>
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