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 <span id="projectnumber">2.7.1</span>
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<p>Return the LIBSWSCALE_VERSION_INT constant.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structSwsVector.html">SwsVector</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structSwsFilter.html">SwsFilter</a></td></tr>
<tr><td colspan="2"><h2><a name="files"></a>
Files</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">file  </td><td class="memItemRight" valign="bottom"><a class="el" href="swscale_8h.html">swscale.h</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight"><p>external API header </p>
<br/></td></tr>
<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__libsws.html#ga6110064d9edfbec77ca5c3279cb75c31">SWS_FAST_BILINEAR</a>   1</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga26b45a2c6df7c1637feab34fbb21a9bb">SWS_BILINEAR</a>   2</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga02a4ee9d3c158e842941873d2cf83b9f">SWS_BICUBIC</a>   4</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga5a8a563c525f7a71ef33368a782157a0">SWS_X</a>   8</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaae31eb0722e375c12d4fe7a028694491">SWS_POINT</a>   0x10</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga702a05689a18ccd170e64fb664ebca57">SWS_AREA</a>   0x20</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga867d1e9ac9ad1eafc33cc3e94041b091">SWS_BICUBLIN</a>   0x40</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga6f8f44a4d92bc09eed63984bc3acf94a">SWS_GAUSS</a>   0x80</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga783824f7ce78aff026e9f71f97be00be">SWS_SINC</a>   0x100</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaae77dad7fc203836ce365378b35da167">SWS_LANCZOS</a>   0x200</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaff798131b2051020f5539baddeeb4e12">SWS_SPLINE</a>   0x400</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga3f5d541ffe1c4bf8a216c54f0de8eb11">SWS_SRC_V_CHR_DROP_MASK</a>   0x30000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga77331b2b4b9648ca47a3ca307a2151c5">SWS_SRC_V_CHR_DROP_SHIFT</a>   16</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gad4a209577e10d655c2495349a96bb611">SWS_PARAM_DEFAULT</a>   123456</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga4cc80734dcb486c315ca2061363c6ede">SWS_PRINT_INFO</a>   0x1000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga4af3bbc6d873caa5ac0bef06f534e3c6">SWS_FULL_CHR_H_INT</a>   0x2000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga4b086de7216852cfc2e40f576285fc97">SWS_FULL_CHR_H_INP</a>   0x4000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga2d1c4cc56bf45e13ee8ce7e3bc199397">SWS_DIRECT_BGR</a>   0x8000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga2f63481f9ac7c35ea5ee7075f15c040e">SWS_ACCURATE_RND</a>   0x40000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga0042bbf5ffe1952e9794a0056792f89f">SWS_BITEXACT</a>   0x80000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga8ba8294c18e0dae9b7883aff1b5f7e89">SWS_ERROR_DIFFUSION</a>   0x800000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga5afaf08725b9b232a4c7d320efea7e48">SWS_CPU_CAPS_MMX</a>   0x80000000</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">CPU caps are autodetected now, those flags are only provided for API compatibility. <a href="#ga5afaf08725b9b232a4c7d320efea7e48"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga7a28ddbb3052a1efe8a96322866c9696">SWS_CPU_CAPS_MMXEXT</a>   0x20000000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga7939bd529e3f9bd5e92c4ebd996652f9">SWS_CPU_CAPS_MMX2</a>   0x20000000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gabe2a57b5122c27941c88fc400c0effff">SWS_CPU_CAPS_3DNOW</a>   0x40000000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaef825df758334ba29fef1d466e1eac25">SWS_CPU_CAPS_ALTIVEC</a>   0x10000000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga77e611fae39d8a42dc9a9d232d94d8a6">SWS_CPU_CAPS_BFIN</a>   0x01000000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga89015824f9eb5aeaa2aca49ddd8324d3">SWS_CPU_CAPS_SSE2</a>   0x02000000</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gacc8f46b6954cae7d891a041793e2e751">SWS_MAX_REDUCE_CUTOFF</a>   0.002</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gab5d1f9b6f50c155496b358d348ed6f36">SWS_CS_ITU709</a>   1</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaae1a28de2fd6fdd21a082bcc10ce6cb9">SWS_CS_FCC</a>   4</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaf9de144a406b66c68bd29cdcaefaeee5">SWS_CS_ITU601</a>   5</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gab3795e86c9f475f206a187d937c7f4fa">SWS_CS_ITU624</a>   5</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gac7287919a348578d8452c42c03d65042">SWS_CS_SMPTE170M</a>   5</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga8a066eae69a34d9d60c73c40628094e4">SWS_CS_SMPTE240M</a>   7</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga1867c2c57f3c0d18fa72592e30e7d3c2">SWS_CS_DEFAULT</a>   5</td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gac879a3ada8130d32ba02a9265bfef253">swscale_version</a> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaaee057c84b44975856aa26e7bb0decce">swscale_configuration</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the libswscale build-time configuration. <a href="#gaaee057c84b44975856aa26e7bb0decce"></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__libsws.html#ga985798b99929665a4dcecf661d45de72">swscale_license</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the libswscale license. <a href="#ga985798b99929665a4dcecf661d45de72"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const int * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gac271c2aa3dd5569c59f018eaf914bbc0">sws_getCoefficients</a> (int colorspace)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a pointer to yuv<->rgb coefficients for the given colorspace suitable for <a class="el" href="group__libsws.html#ga541bdffa8149f5f9203664f955faa040">sws_setColorspaceDetails()</a>. <a href="#gac271c2aa3dd5569c59f018eaf914bbc0"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gab5e631b602510bd3fa3a5a7d509e573d">sws_isSupportedInput</a> (enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> <a class="el" href="demuxing__decoding_8c.html#a7331e302ea7bb48e0b605a069576e135">pix_fmt</a>)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a positive value if pix_fmt is a supported input format, 0 otherwise. <a href="#gab5e631b602510bd3fa3a5a7d509e573d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga6885dc8ec36e8f2e701924263aa92cb0">sws_isSupportedOutput</a> (enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> <a class="el" href="demuxing__decoding_8c.html#a7331e302ea7bb48e0b605a069576e135">pix_fmt</a>)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a positive value if pix_fmt is a supported output format, 0 otherwise. <a href="#ga6885dc8ec36e8f2e701924263aa92cb0"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga67f865ce22ae986ea84f4d7ce60ef182">sws_isSupportedEndiannessConversion</a> (enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> <a class="el" href="demuxing__decoding_8c.html#a7331e302ea7bb48e0b605a069576e135">pix_fmt</a>)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct SwsContext * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gab97d02dc20945fd013ba49afb8bd1099">sws_alloc_context</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate an empty SwsContext. <a href="#gab97d02dc20945fd013ba49afb8bd1099"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaea18a5a4278005ccdf5b9392cb8fcd89">sws_init_context</a> (struct SwsContext *sws_context, <a class="el" href="structSwsFilter.html">SwsFilter</a> *srcFilter, <a class="el" href="structSwsFilter.html">SwsFilter</a> *dstFilter)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize the swscaler context sws_context. <a href="#gaea18a5a4278005ccdf5b9392cb8fcd89"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gad3af0ca76f071dbe0173444db9882932">sws_freeContext</a> (struct SwsContext *swsContext)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Free the swscaler context swsContext. <a href="#gad3af0ca76f071dbe0173444db9882932"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct SwsContext * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaf360d1a9e0e60f906f74d7d44f9abfdd">sws_getContext</a> (int srcW, int srcH, enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> srcFormat, int dstW, int dstH, enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> dstFormat, int flags, <a class="el" href="structSwsFilter.html">SwsFilter</a> *srcFilter, <a class="el" href="structSwsFilter.html">SwsFilter</a> *dstFilter, const double *param)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate and return an SwsContext. <a href="#gaf360d1a9e0e60f906f74d7d44f9abfdd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gae531c9754c9205d90ad6800015046d74">sws_scale</a> (struct SwsContext *c, const uint8_t *const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Scale the image slice in srcSlice and put the resulting scaled slice in the image in dst. <a href="#gae531c9754c9205d90ad6800015046d74"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga541bdffa8149f5f9203664f955faa040">sws_setColorspaceDetails</a> (struct SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga098dc4b69a97b616fc35791aec249ff1">sws_getColorspaceDetails</a> (struct SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structSwsVector.html">SwsVector</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga7c50ae0b2facbff7afcf88233c94d363">sws_allocVec</a> (int length)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate and return an uninitialized vector with length coefficients. <a href="#ga7c50ae0b2facbff7afcf88233c94d363"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structSwsVector.html">SwsVector</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga25e4916da07d6d4fcfc4417f6c246204">sws_getGaussianVec</a> (double variance, double quality)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a normalized Gaussian curve used to filter stuff quality = 3 is high quality, lower is lower quality. <a href="#ga25e4916da07d6d4fcfc4417f6c246204"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structSwsVector.html">SwsVector</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga1af43da26e59e9595ea404650bfbd052">sws_getConstVec</a> (double c, int length)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate and return a vector with length coefficients, all with the same value c. <a href="#ga1af43da26e59e9595ea404650bfbd052"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structSwsVector.html">SwsVector</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gafdb3a482b22a59da306449ecce6a1a2a">sws_getIdentityVec</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate and return a vector with just one coefficient, with value 1.0. <a href="#gafdb3a482b22a59da306449ecce6a1a2a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gaf79fd6cabde06a0f2d118eb373bf83c6">sws_scaleVec</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a, double scalar)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Scale all the coefficients of a by the scalar value. <a href="#gaf79fd6cabde06a0f2d118eb373bf83c6"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gab40ce33fa0a432f1ba57dda9f740380d">sws_normalizeVec</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a, double <a class="el" href="demuxing__decoding_8c.html#ad12fc34ce789bce6c8a05d8a17138534">height</a>)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Scale all the coefficients of a so that their sum equals height. <a href="#gab40ce33fa0a432f1ba57dda9f740380d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga26e9f44ae6cdf82024772a7d8c27e76e">sws_convVec</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a, <a class="el" href="structSwsVector.html">SwsVector</a> *b)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga618bf6170f25bade10d71251a9ed2c48">sws_addVec</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a, <a class="el" href="structSwsVector.html">SwsVector</a> *b)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga0c5c30b5421ef0285e13bedd599d905f">sws_subVec</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a, <a class="el" href="structSwsVector.html">SwsVector</a> *b)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga1ca5b9e20145af269c873713c534eaaf">sws_shiftVec</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a, int shift)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structSwsVector.html">SwsVector</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga3045a5646db319e054d9923220e1c81b">sws_cloneVec</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate and return a clone of the vector a, that is a vector with the same coefficients as a. <a href="#ga3045a5646db319e054d9923220e1c81b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gac9888325d6d97b10c13c8f3ee8d7a03f">sws_printVec2</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a, <a class="el" href="structAVClass.html">AVClass</a> *log_ctx, int log_level)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Print with <a class="el" href="group__lavu__log.html#gabd386ffd4b27637cf34e98d5d1a6e8ae" title="Send the specified message to the log if the level is less than or equal to the current av_log_level...">av_log()</a> a textual representation of the vector a if log_level <= av_log_level. <a href="#gac9888325d6d97b10c13c8f3ee8d7a03f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga5745e8384365fd5c6b0a3241d6ab767b">sws_freeVec</a> (<a class="el" href="structSwsVector.html">SwsVector</a> *a)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structSwsFilter.html">SwsFilter</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gab885b56d729331538917edae65d557dd">sws_getDefaultFilter</a> (float lumaGBlur, float chromaGBlur, float lumaSharpen, float chromaSharpen, float chromaHShift, float chromaVShift, int verbose)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga17b762761f7a53d596841ac0f2d4a2b5">sws_freeFilter</a> (<a class="el" href="structSwsFilter.html">SwsFilter</a> *filter)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct SwsContext * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#gadffa09f208a3eba7fa3a6b1f74ab77f7">sws_getCachedContext</a> (struct SwsContext *context, int srcW, int srcH, enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> srcFormat, int dstW, int dstH, enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> dstFormat, int flags, <a class="el" href="structSwsFilter.html">SwsFilter</a> *srcFilter, <a class="el" href="structSwsFilter.html">SwsFilter</a> *dstFilter, const double *param)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Check if context can be reused, otherwise reallocate a new one. <a href="#gadffa09f208a3eba7fa3a6b1f74ab77f7"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga2a140989dfed29dd91065352b6a52840">sws_convertPalette8ToPacked32</a> (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Convert an 8-bit paletted frame into a frame with a color depth of 32 bits. <a href="#ga2a140989dfed29dd91065352b6a52840"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga3c3d094eb840e10fbc3a37c20a6c8585">sws_convertPalette8ToPacked24</a> (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Convert an 8-bit paletted frame into a frame with a color depth of 24 bits. <a href="#ga3c3d094eb840e10fbc3a37c20a6c8585"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="structAVClass.html">AVClass</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libsws.html#ga14ed8a7188230d908f9f28ae9f7ba459">sws_get_class</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the <a class="el" href="structAVClass.html" title="Describe the class of an AVClass context structure.">AVClass</a> for swsContext. <a href="#ga14ed8a7188230d908f9f28ae9f7ba459"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<p>Return the LIBSWSCALE_VERSION_INT constant. </p>
<hr/><h2>Define Documentation</h2>
<a class="anchor" id="ga6110064d9edfbec77ca5c3279cb75c31"></a><!-- doxytag: member="swscale.h::SWS_FAST_BILINEAR" ref="ga6110064d9edfbec77ca5c3279cb75c31" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga6110064d9edfbec77ca5c3279cb75c31">SWS_FAST_BILINEAR</a>   1</td>
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<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00056">56</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga26b45a2c6df7c1637feab34fbb21a9bb"></a><!-- doxytag: member="swscale.h::SWS_BILINEAR" ref="ga26b45a2c6df7c1637feab34fbb21a9bb" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga26b45a2c6df7c1637feab34fbb21a9bb">SWS_BILINEAR</a>   2</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="scaling_video_8c-example.html#a8">scaling_video.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00057">57</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
<p>Referenced by <a class="el" href="scaling__video_8c_source.html#l00052">main()</a>.</p>
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<a class="anchor" id="ga02a4ee9d3c158e842941873d2cf83b9f"></a><!-- doxytag: member="swscale.h::SWS_BICUBIC" ref="ga02a4ee9d3c158e842941873d2cf83b9f" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga02a4ee9d3c158e842941873d2cf83b9f">SWS_BICUBIC</a>   4</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00058">58</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga5a8a563c525f7a71ef33368a782157a0"></a><!-- doxytag: member="swscale.h::SWS_X" ref="ga5a8a563c525f7a71ef33368a782157a0" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga5a8a563c525f7a71ef33368a782157a0">SWS_X</a>   8</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00059">59</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="gaae31eb0722e375c12d4fe7a028694491"></a><!-- doxytag: member="swscale.h::SWS_POINT" ref="gaae31eb0722e375c12d4fe7a028694491" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gaae31eb0722e375c12d4fe7a028694491">SWS_POINT</a>   0x10</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00060">60</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga702a05689a18ccd170e64fb664ebca57"></a><!-- doxytag: member="swscale.h::SWS_AREA" ref="ga702a05689a18ccd170e64fb664ebca57" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga702a05689a18ccd170e64fb664ebca57">SWS_AREA</a>   0x20</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00061">61</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga867d1e9ac9ad1eafc33cc3e94041b091"></a><!-- doxytag: member="swscale.h::SWS_BICUBLIN" ref="ga867d1e9ac9ad1eafc33cc3e94041b091" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga867d1e9ac9ad1eafc33cc3e94041b091">SWS_BICUBLIN</a>   0x40</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00062">62</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga6f8f44a4d92bc09eed63984bc3acf94a"></a><!-- doxytag: member="swscale.h::SWS_GAUSS" ref="ga6f8f44a4d92bc09eed63984bc3acf94a" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga6f8f44a4d92bc09eed63984bc3acf94a">SWS_GAUSS</a>   0x80</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00063">63</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga783824f7ce78aff026e9f71f97be00be"></a><!-- doxytag: member="swscale.h::SWS_SINC" ref="ga783824f7ce78aff026e9f71f97be00be" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga783824f7ce78aff026e9f71f97be00be">SWS_SINC</a>   0x100</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00064">64</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="gaae77dad7fc203836ce365378b35da167"></a><!-- doxytag: member="swscale.h::SWS_LANCZOS" ref="gaae77dad7fc203836ce365378b35da167" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gaae77dad7fc203836ce365378b35da167">SWS_LANCZOS</a>   0x200</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00065">65</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="gaff798131b2051020f5539baddeeb4e12"></a><!-- doxytag: member="swscale.h::SWS_SPLINE" ref="gaff798131b2051020f5539baddeeb4e12" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gaff798131b2051020f5539baddeeb4e12">SWS_SPLINE</a>   0x400</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00066">66</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga3f5d541ffe1c4bf8a216c54f0de8eb11"></a><!-- doxytag: member="swscale.h::SWS_SRC_V_CHR_DROP_MASK" ref="ga3f5d541ffe1c4bf8a216c54f0de8eb11" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga3f5d541ffe1c4bf8a216c54f0de8eb11">SWS_SRC_V_CHR_DROP_MASK</a>   0x30000</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00068">68</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga77331b2b4b9648ca47a3ca307a2151c5"></a><!-- doxytag: member="swscale.h::SWS_SRC_V_CHR_DROP_SHIFT" ref="ga77331b2b4b9648ca47a3ca307a2151c5" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga77331b2b4b9648ca47a3ca307a2151c5">SWS_SRC_V_CHR_DROP_SHIFT</a>   16</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00069">69</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="gad4a209577e10d655c2495349a96bb611"></a><!-- doxytag: member="swscale.h::SWS_PARAM_DEFAULT" ref="gad4a209577e10d655c2495349a96bb611" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gad4a209577e10d655c2495349a96bb611">SWS_PARAM_DEFAULT</a>   123456</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00071">71</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga4cc80734dcb486c315ca2061363c6ede"></a><!-- doxytag: member="swscale.h::SWS_PRINT_INFO" ref="ga4cc80734dcb486c315ca2061363c6ede" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga4cc80734dcb486c315ca2061363c6ede">SWS_PRINT_INFO</a>   0x1000</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00073">73</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga4af3bbc6d873caa5ac0bef06f534e3c6"></a><!-- doxytag: member="swscale.h::SWS_FULL_CHR_H_INT" ref="ga4af3bbc6d873caa5ac0bef06f534e3c6" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga4af3bbc6d873caa5ac0bef06f534e3c6">SWS_FULL_CHR_H_INT</a>   0x2000</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00077">77</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga4b086de7216852cfc2e40f576285fc97"></a><!-- doxytag: member="swscale.h::SWS_FULL_CHR_H_INP" ref="ga4b086de7216852cfc2e40f576285fc97" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga4b086de7216852cfc2e40f576285fc97">SWS_FULL_CHR_H_INP</a>   0x4000</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00079">79</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<a class="anchor" id="ga2d1c4cc56bf45e13ee8ce7e3bc199397"></a><!-- doxytag: member="swscale.h::SWS_DIRECT_BGR" ref="ga2d1c4cc56bf45e13ee8ce7e3bc199397" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga2d1c4cc56bf45e13ee8ce7e3bc199397">SWS_DIRECT_BGR</a>   0x8000</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00080">80</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="ga2f63481f9ac7c35ea5ee7075f15c040e"></a><!-- doxytag: member="swscale.h::SWS_ACCURATE_RND" ref="ga2f63481f9ac7c35ea5ee7075f15c040e" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga2f63481f9ac7c35ea5ee7075f15c040e">SWS_ACCURATE_RND</a>   0x40000</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00081">81</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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</div>
<a class="anchor" id="ga0042bbf5ffe1952e9794a0056792f89f"></a><!-- doxytag: member="swscale.h::SWS_BITEXACT" ref="ga0042bbf5ffe1952e9794a0056792f89f" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga0042bbf5ffe1952e9794a0056792f89f">SWS_BITEXACT</a>   0x80000</td>
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</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00082">82</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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</div>
<a class="anchor" id="ga8ba8294c18e0dae9b7883aff1b5f7e89"></a><!-- doxytag: member="swscale.h::SWS_ERROR_DIFFUSION" ref="ga8ba8294c18e0dae9b7883aff1b5f7e89" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga8ba8294c18e0dae9b7883aff1b5f7e89">SWS_ERROR_DIFFUSION</a>   0x800000</td>
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</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00083">83</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="ga5afaf08725b9b232a4c7d320efea7e48"></a><!-- doxytag: member="swscale.h::SWS_CPU_CAPS_MMX" ref="ga5afaf08725b9b232a4c7d320efea7e48" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga5afaf08725b9b232a4c7d320efea7e48">SWS_CPU_CAPS_MMX</a>   0x80000000</td>
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</table>
</div>
<div class="memdoc">
<p>CPU caps are autodetected now, those flags are only provided for API compatibility. </p>
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00090">90</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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</div>
<a class="anchor" id="ga7a28ddbb3052a1efe8a96322866c9696"></a><!-- doxytag: member="swscale.h::SWS_CPU_CAPS_MMXEXT" ref="ga7a28ddbb3052a1efe8a96322866c9696" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga7a28ddbb3052a1efe8a96322866c9696">SWS_CPU_CAPS_MMXEXT</a>   0x20000000</td>
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</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00091">91</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="ga7939bd529e3f9bd5e92c4ebd996652f9"></a><!-- doxytag: member="swscale.h::SWS_CPU_CAPS_MMX2" ref="ga7939bd529e3f9bd5e92c4ebd996652f9" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga7939bd529e3f9bd5e92c4ebd996652f9">SWS_CPU_CAPS_MMX2</a>   0x20000000</td>
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</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00092">92</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="gabe2a57b5122c27941c88fc400c0effff"></a><!-- doxytag: member="swscale.h::SWS_CPU_CAPS_3DNOW" ref="gabe2a57b5122c27941c88fc400c0effff" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gabe2a57b5122c27941c88fc400c0effff">SWS_CPU_CAPS_3DNOW</a>   0x40000000</td>
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</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00093">93</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="gaef825df758334ba29fef1d466e1eac25"></a><!-- doxytag: member="swscale.h::SWS_CPU_CAPS_ALTIVEC" ref="gaef825df758334ba29fef1d466e1eac25" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gaef825df758334ba29fef1d466e1eac25">SWS_CPU_CAPS_ALTIVEC</a>   0x10000000</td>
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</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00094">94</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="ga77e611fae39d8a42dc9a9d232d94d8a6"></a><!-- doxytag: member="swscale.h::SWS_CPU_CAPS_BFIN" ref="ga77e611fae39d8a42dc9a9d232d94d8a6" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga77e611fae39d8a42dc9a9d232d94d8a6">SWS_CPU_CAPS_BFIN</a>   0x01000000</td>
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</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00096">96</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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</div>
<a class="anchor" id="ga89015824f9eb5aeaa2aca49ddd8324d3"></a><!-- doxytag: member="swscale.h::SWS_CPU_CAPS_SSE2" ref="ga89015824f9eb5aeaa2aca49ddd8324d3" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga89015824f9eb5aeaa2aca49ddd8324d3">SWS_CPU_CAPS_SSE2</a>   0x02000000</td>
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</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00098">98</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="gacc8f46b6954cae7d891a041793e2e751"></a><!-- doxytag: member="swscale.h::SWS_MAX_REDUCE_CUTOFF" ref="gacc8f46b6954cae7d891a041793e2e751" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gacc8f46b6954cae7d891a041793e2e751">SWS_MAX_REDUCE_CUTOFF</a>   0.002</td>
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</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00101">101</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="gab5d1f9b6f50c155496b358d348ed6f36"></a><!-- doxytag: member="swscale.h::SWS_CS_ITU709" ref="gab5d1f9b6f50c155496b358d348ed6f36" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gab5d1f9b6f50c155496b358d348ed6f36">SWS_CS_ITU709</a>   1</td>
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</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00103">103</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="gaae1a28de2fd6fdd21a082bcc10ce6cb9"></a><!-- doxytag: member="swscale.h::SWS_CS_FCC" ref="gaae1a28de2fd6fdd21a082bcc10ce6cb9" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gaae1a28de2fd6fdd21a082bcc10ce6cb9">SWS_CS_FCC</a>   4</td>
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<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00104">104</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="gaf9de144a406b66c68bd29cdcaefaeee5"></a><!-- doxytag: member="swscale.h::SWS_CS_ITU601" ref="gaf9de144a406b66c68bd29cdcaefaeee5" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gaf9de144a406b66c68bd29cdcaefaeee5">SWS_CS_ITU601</a>   5</td>
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<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00105">105</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="gab3795e86c9f475f206a187d937c7f4fa"></a><!-- doxytag: member="swscale.h::SWS_CS_ITU624" ref="gab3795e86c9f475f206a187d937c7f4fa" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gab3795e86c9f475f206a187d937c7f4fa">SWS_CS_ITU624</a>   5</td>
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</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00106">106</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
</div>
</div>
<a class="anchor" id="gac7287919a348578d8452c42c03d65042"></a><!-- doxytag: member="swscale.h::SWS_CS_SMPTE170M" ref="gac7287919a348578d8452c42c03d65042" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#gac7287919a348578d8452c42c03d65042">SWS_CS_SMPTE170M</a>   5</td>
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<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00107">107</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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</div>
<a class="anchor" id="ga8a066eae69a34d9d60c73c40628094e4"></a><!-- doxytag: member="swscale.h::SWS_CS_SMPTE240M" ref="ga8a066eae69a34d9d60c73c40628094e4" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga8a066eae69a34d9d60c73c40628094e4">SWS_CS_SMPTE240M</a>   7</td>
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<div class="memdoc">
<p>Definition at line <a class="el" href="swscale_8h_source.html#l00108">108</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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</div>
<a class="anchor" id="ga1867c2c57f3c0d18fa72592e30e7d3c2"></a><!-- doxytag: member="swscale.h::SWS_CS_DEFAULT" ref="ga1867c2c57f3c0d18fa72592e30e7d3c2" args="" -->
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<td class="memname">#define <a class="el" href="group__libsws.html#ga1867c2c57f3c0d18fa72592e30e7d3c2">SWS_CS_DEFAULT</a>   5</td>
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<p>Definition at line <a class="el" href="swscale_8h_source.html#l00109">109</a> of file <a class="el" href="swscale_8h_source.html">swscale.h</a>.</p>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="gac879a3ada8130d32ba02a9265bfef253"></a><!-- doxytag: member="swscale.h::swscale_version" ref="gac879a3ada8130d32ba02a9265bfef253" args="(void)" -->
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<td class="memname">unsigned <a class="el" href="group__libsws.html#gac879a3ada8130d32ba02a9265bfef253">swscale_version</a> </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td></td>
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<a class="anchor" id="gaaee057c84b44975856aa26e7bb0decce"></a><!-- doxytag: member="swscale.h::swscale_configuration" ref="gaaee057c84b44975856aa26e7bb0decce" args="(void)" -->
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<td class="memname">const char* <a class="el" href="group__libsws.html#gaaee057c84b44975856aa26e7bb0decce">swscale_configuration</a> </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>Return the libswscale build-time configuration. </p>
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</div>
<a class="anchor" id="ga985798b99929665a4dcecf661d45de72"></a><!-- doxytag: member="swscale.h::swscale_license" ref="ga985798b99929665a4dcecf661d45de72" args="(void)" -->
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<td class="memname">const char* <a class="el" href="group__libsws.html#ga985798b99929665a4dcecf661d45de72">swscale_license</a> </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>Return the libswscale license. </p>
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</div>
<a class="anchor" id="gac271c2aa3dd5569c59f018eaf914bbc0"></a><!-- doxytag: member="swscale.h::sws_getCoefficients" ref="gac271c2aa3dd5569c59f018eaf914bbc0" args="(int colorspace)" -->
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<td class="memname">const int* <a class="el" href="group__libsws.html#gac271c2aa3dd5569c59f018eaf914bbc0">sws_getCoefficients</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>colorspace</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return a pointer to yuv<->rgb coefficients for the given colorspace suitable for <a class="el" href="group__libsws.html#ga541bdffa8149f5f9203664f955faa040">sws_setColorspaceDetails()</a>. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">colorspace</td><td>One of the SWS_CS_* macros. If invalid, SWS_CS_DEFAULT is used. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="gab5e631b602510bd3fa3a5a7d509e573d"></a><!-- doxytag: member="swscale.h::sws_isSupportedInput" ref="gab5e631b602510bd3fa3a5a7d509e573d" args="(enum AVPixelFormat pix_fmt)" -->
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<td class="memname">int <a class="el" href="group__libsws.html#gab5e631b602510bd3fa3a5a7d509e573d">sws_isSupportedInput</a> </td>
<td>(</td>
<td class="paramtype">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> </td>
<td class="paramname"><em>pix_fmt</em></td><td>)</td>
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<p>Return a positive value if pix_fmt is a supported input format, 0 otherwise. </p>
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<a class="anchor" id="ga6885dc8ec36e8f2e701924263aa92cb0"></a><!-- doxytag: member="swscale.h::sws_isSupportedOutput" ref="ga6885dc8ec36e8f2e701924263aa92cb0" args="(enum AVPixelFormat pix_fmt)" -->
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<td class="memname">int <a class="el" href="group__libsws.html#ga6885dc8ec36e8f2e701924263aa92cb0">sws_isSupportedOutput</a> </td>
<td>(</td>
<td class="paramtype">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> </td>
<td class="paramname"><em>pix_fmt</em></td><td>)</td>
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<p>Return a positive value if pix_fmt is a supported output format, 0 otherwise. </p>
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</div>
<a class="anchor" id="ga67f865ce22ae986ea84f4d7ce60ef182"></a><!-- doxytag: member="swscale.h::sws_isSupportedEndiannessConversion" ref="ga67f865ce22ae986ea84f4d7ce60ef182" args="(enum AVPixelFormat pix_fmt)" -->
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<td class="memname">int <a class="el" href="group__libsws.html#ga67f865ce22ae986ea84f4d7ce60ef182">sws_isSupportedEndiannessConversion</a> </td>
<td>(</td>
<td class="paramtype">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> </td>
<td class="paramname"><em>pix_fmt</em></td><td>)</td>
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<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pix_fmt</td><td>the pixel format </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>a positive value if an endianness conversion for pix_fmt is supported, 0 otherwise. </dd></dl>
</div>
</div>
<a class="anchor" id="gab97d02dc20945fd013ba49afb8bd1099"></a><!-- doxytag: member="swscale.h::sws_alloc_context" ref="gab97d02dc20945fd013ba49afb8bd1099" args="(void)" -->
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<td class="memname">struct SwsContext* <a class="el" href="group__libsws.html#gab97d02dc20945fd013ba49afb8bd1099">sws_alloc_context</a> </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td><code> [read]</code></td>
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<p>Allocate an empty SwsContext. </p>
<p>This must be filled and passed to <a class="el" href="group__libsws.html#gaea18a5a4278005ccdf5b9392cb8fcd89" title="Initialize the swscaler context sws_context.">sws_init_context()</a>. For filling see AVOptions, options.c and <a class="el" href="group__libsws.html#ga541bdffa8149f5f9203664f955faa040">sws_setColorspaceDetails()</a>. </p>
</div>
</div>
<a class="anchor" id="gaea18a5a4278005ccdf5b9392cb8fcd89"></a><!-- doxytag: member="swscale.h::sws_init_context" ref="gaea18a5a4278005ccdf5b9392cb8fcd89" args="(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter)" -->
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<td class="memname">int <a class="el" href="group__libsws.html#gaea18a5a4278005ccdf5b9392cb8fcd89">sws_init_context</a> </td>
<td>(</td>
<td class="paramtype">struct SwsContext * </td>
<td class="paramname"><em>sws_context</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsFilter.html">SwsFilter</a> * </td>
<td class="paramname"><em>srcFilter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsFilter.html">SwsFilter</a> * </td>
<td class="paramname"><em>dstFilter</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<div class="memdoc">
<p>Initialize the swscaler context sws_context. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>zero or positive value on success, a negative value on error </dd></dl>
</div>
</div>
<a class="anchor" id="gad3af0ca76f071dbe0173444db9882932"></a><!-- doxytag: member="swscale.h::sws_freeContext" ref="gad3af0ca76f071dbe0173444db9882932" args="(struct SwsContext *swsContext)" -->
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<td class="memname">void <a class="el" href="group__libsws.html#gad3af0ca76f071dbe0173444db9882932">sws_freeContext</a> </td>
<td>(</td>
<td class="paramtype">struct SwsContext * </td>
<td class="paramname"><em>swsContext</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Free the swscaler context swsContext. </p>
<p>If swsContext is NULL, then does nothing. </p>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="muxing_8c-example.html#a129">muxing.c</a>, and <a class="el" href="scaling_video_8c-example.html#a14">scaling_video.c</a>.</dd>
</dl>
<p>Referenced by <a class="el" href="muxing_8c_source.html#l00544">close_stream()</a>, and <a class="el" href="scaling__video_8c_source.html#l00052">main()</a>.</p>
</div>
</div>
<a class="anchor" id="gaf360d1a9e0e60f906f74d7d44f9abfdd"></a><!-- doxytag: member="swscale.h::sws_getContext" ref="gaf360d1a9e0e60f906f74d7d44f9abfdd" args="(int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)" -->
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<td class="memname">struct SwsContext* <a class="el" href="group__libsws.html#gaf360d1a9e0e60f906f74d7d44f9abfdd">sws_getContext</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>srcW</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>srcH</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> </td>
<td class="paramname"><em>srcFormat</em>, </td>
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<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>dstW</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>dstH</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> </td>
<td class="paramname"><em>dstFormat</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>flags</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsFilter.html">SwsFilter</a> * </td>
<td class="paramname"><em>srcFilter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsFilter.html">SwsFilter</a> * </td>
<td class="paramname"><em>dstFilter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const double * </td>
<td class="paramname"><em>param</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [read]</code></td>
</tr>
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<p>Allocate and return an SwsContext. </p>
<p>You need it to perform scaling/conversion operations using <a class="el" href="group__libsws.html#gae531c9754c9205d90ad6800015046d74" title="Scale the image slice in srcSlice and put the resulting scaled slice in the image in dst...">sws_scale()</a>.</p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">srcW</td><td>the width of the source image </td></tr>
<tr><td class="paramname">srcH</td><td>the height of the source image </td></tr>
<tr><td class="paramname">srcFormat</td><td>the source image format </td></tr>
<tr><td class="paramname">dstW</td><td>the width of the destination image </td></tr>
<tr><td class="paramname">dstH</td><td>the height of the destination image </td></tr>
<tr><td class="paramname">dstFormat</td><td>the destination image format </td></tr>
<tr><td class="paramname">flags</td><td>specify which algorithm and options to use for rescaling </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>a pointer to an allocated context, or NULL in case of error </dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>this function is to be removed after a saner alternative is written </dd></dl>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="muxing_8c-example.html#a115">muxing.c</a>, and <a class="el" href="scaling_video_8c-example.html#a7">scaling_video.c</a>.</dd>
</dl>
<p>Referenced by <a class="el" href="scaling__video_8c_source.html#l00052">main()</a>.</p>
</div>
</div>
<a class="anchor" id="gae531c9754c9205d90ad6800015046d74"></a><!-- doxytag: member="swscale.h::sws_scale" ref="gae531c9754c9205d90ad6800015046d74" args="(struct SwsContext *c, const uint8_t *const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])" -->
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<td class="memname">int <a class="el" href="group__libsws.html#gae531c9754c9205d90ad6800015046d74">sws_scale</a> </td>
<td>(</td>
<td class="paramtype">struct SwsContext * </td>
<td class="paramname"><em>c</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const uint8_t *const </td>
<td class="paramname"><em>srcSlice</em>[], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"><em>srcStride</em>[], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>srcSliceY</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>srcSliceH</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t *const </td>
<td class="paramname"><em>dst</em>[], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"><em>dstStride</em>[] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Scale the image slice in srcSlice and put the resulting scaled slice in the image in dst. </p>
<p>A slice is a sequence of consecutive rows in an image.</p>
<p>Slices have to be provided in sequential order, either in top-bottom or bottom-top order. If slices are provided in non-sequential order the behavior of the function is undefined.</p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">c</td><td>the scaling context previously created with <a class="el" href="group__libsws.html#gaf360d1a9e0e60f906f74d7d44f9abfdd" title="Allocate and return an SwsContext.">sws_getContext()</a> </td></tr>
<tr><td class="paramname">srcSlice</td><td>the array containing the pointers to the planes of the source slice </td></tr>
<tr><td class="paramname">srcStride</td><td>the array containing the strides for each plane of the source image </td></tr>
<tr><td class="paramname">srcSliceY</td><td>the position in the source image of the slice to process, that is the number (counted starting from zero) in the image of the first row of the slice </td></tr>
<tr><td class="paramname">srcSliceH</td><td>the height of the source slice, that is the number of rows in the slice </td></tr>
<tr><td class="paramname">dst</td><td>the array containing the pointers to the planes of the destination image </td></tr>
<tr><td class="paramname">dstStride</td><td>the array containing the strides for each plane of the destination image </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>the height of the output slice </dd></dl>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="muxing_8c-example.html#a117">muxing.c</a>, and <a class="el" href="scaling_video_8c-example.html#a12">scaling_video.c</a>.</dd>
</dl>
<p>Referenced by <a class="el" href="scaling__video_8c_source.html#l00052">main()</a>.</p>
</div>
</div>
<a class="anchor" id="ga541bdffa8149f5f9203664f955faa040"></a><!-- doxytag: member="swscale.h::sws_setColorspaceDetails" ref="ga541bdffa8149f5f9203664f955faa040" args="(struct SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation)" -->
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<td class="memname">int <a class="el" href="group__libsws.html#ga541bdffa8149f5f9203664f955faa040">sws_setColorspaceDetails</a> </td>
<td>(</td>
<td class="paramtype">struct SwsContext * </td>
<td class="paramname"><em>c</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"><em>inv_table</em>[4], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>srcRange</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"><em>table</em>[4], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>dstRange</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>brightness</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>contrast</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>saturation</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<div class="memdoc">
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">dstRange</td><td>flag indicating the while-black range of the output (1=jpeg / 0=mpeg) </td></tr>
<tr><td class="paramname">srcRange</td><td>flag indicating the while-black range of the input (1=jpeg / 0=mpeg) </td></tr>
<tr><td class="paramname">table</td><td>the yuv2rgb coefficients describing the output yuv space, normally ff_yuv2rgb_coeffs[x] </td></tr>
<tr><td class="paramname">inv_table</td><td>the yuv2rgb coefficients describing the input yuv space, normally ff_yuv2rgb_coeffs[x] </td></tr>
<tr><td class="paramname">brightness</td><td>16.16 fixed point brightness correction </td></tr>
<tr><td class="paramname">contrast</td><td>16.16 fixed point contrast correction </td></tr>
<tr><td class="paramname">saturation</td><td>16.16 fixed point saturation correction </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>-1 if not supported </dd></dl>
</div>
</div>
<a class="anchor" id="ga098dc4b69a97b616fc35791aec249ff1"></a><!-- doxytag: member="swscale.h::sws_getColorspaceDetails" ref="ga098dc4b69a97b616fc35791aec249ff1" args="(struct SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation)" -->
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<td class="memname">int <a class="el" href="group__libsws.html#ga098dc4b69a97b616fc35791aec249ff1">sws_getColorspaceDetails</a> </td>
<td>(</td>
<td class="paramtype">struct SwsContext * </td>
<td class="paramname"><em>c</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int ** </td>
<td class="paramname"><em>inv_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>srcRange</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int ** </td>
<td class="paramname"><em>table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>dstRange</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>brightness</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>contrast</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>saturation</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>-1 if not supported </dd></dl>
</div>
</div>
<a class="anchor" id="ga7c50ae0b2facbff7afcf88233c94d363"></a><!-- doxytag: member="swscale.h::sws_allocVec" ref="ga7c50ae0b2facbff7afcf88233c94d363" args="(int length)" -->
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<td class="memname"><a class="el" href="structSwsVector.html">SwsVector</a>* <a class="el" href="group__libsws.html#ga7c50ae0b2facbff7afcf88233c94d363">sws_allocVec</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>length</em></td><td>)</td>
<td></td>
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<p>Allocate and return an uninitialized vector with length coefficients. </p>
</div>
</div>
<a class="anchor" id="ga25e4916da07d6d4fcfc4417f6c246204"></a><!-- doxytag: member="swscale.h::sws_getGaussianVec" ref="ga25e4916da07d6d4fcfc4417f6c246204" args="(double variance, double quality)" -->
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<td class="memname"><a class="el" href="structSwsVector.html">SwsVector</a>* <a class="el" href="group__libsws.html#ga25e4916da07d6d4fcfc4417f6c246204">sws_getGaussianVec</a> </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>variance</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>quality</em> </td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Return a normalized Gaussian curve used to filter stuff quality = 3 is high quality, lower is lower quality. </p>
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<td class="memname"><a class="el" href="structSwsVector.html">SwsVector</a>* <a class="el" href="group__libsws.html#ga1af43da26e59e9595ea404650bfbd052">sws_getConstVec</a> </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>c</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>length</em> </td>
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<tr>
<td></td>
<td>)</td>
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<p>Allocate and return a vector with length coefficients, all with the same value c. </p>
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<a class="anchor" id="gafdb3a482b22a59da306449ecce6a1a2a"></a><!-- doxytag: member="swscale.h::sws_getIdentityVec" ref="gafdb3a482b22a59da306449ecce6a1a2a" args="(void)" -->
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<td class="memname"><a class="el" href="structSwsVector.html">SwsVector</a>* <a class="el" href="group__libsws.html#gafdb3a482b22a59da306449ecce6a1a2a">sws_getIdentityVec</a> </td>
<td>(</td>
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<td class="paramname"></td><td>)</td>
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<p>Allocate and return a vector with just one coefficient, with value 1.0. </p>
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<a class="anchor" id="gaf79fd6cabde06a0f2d118eb373bf83c6"></a><!-- doxytag: member="swscale.h::sws_scaleVec" ref="gaf79fd6cabde06a0f2d118eb373bf83c6" args="(SwsVector *a, double scalar)" -->
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<td class="memname">void <a class="el" href="group__libsws.html#gaf79fd6cabde06a0f2d118eb373bf83c6">sws_scaleVec</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>scalar</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Scale all the coefficients of a by the scalar value. </p>
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<a class="anchor" id="gab40ce33fa0a432f1ba57dda9f740380d"></a><!-- doxytag: member="swscale.h::sws_normalizeVec" ref="gab40ce33fa0a432f1ba57dda9f740380d" args="(SwsVector *a, double height)" -->
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<td class="memname">void <a class="el" href="group__libsws.html#gab40ce33fa0a432f1ba57dda9f740380d">sws_normalizeVec</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>height</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Scale all the coefficients of a so that their sum equals height. </p>
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<a class="anchor" id="ga26e9f44ae6cdf82024772a7d8c27e76e"></a><!-- doxytag: member="swscale.h::sws_convVec" ref="ga26e9f44ae6cdf82024772a7d8c27e76e" args="(SwsVector *a, SwsVector *b)" -->
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<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>b</em> </td>
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<tr>
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<td>)</td>
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</div>
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<a class="anchor" id="ga618bf6170f25bade10d71251a9ed2c48"></a><!-- doxytag: member="swscale.h::sws_addVec" ref="ga618bf6170f25bade10d71251a9ed2c48" args="(SwsVector *a, SwsVector *b)" -->
<div class="memitem">
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<tr>
<td class="memname">void <a class="el" href="group__libsws.html#ga618bf6170f25bade10d71251a9ed2c48">sws_addVec</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>b</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<a class="anchor" id="ga0c5c30b5421ef0285e13bedd599d905f"></a><!-- doxytag: member="swscale.h::sws_subVec" ref="ga0c5c30b5421ef0285e13bedd599d905f" args="(SwsVector *a, SwsVector *b)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void <a class="el" href="group__libsws.html#ga0c5c30b5421ef0285e13bedd599d905f">sws_subVec</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>b</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<a class="anchor" id="ga1ca5b9e20145af269c873713c534eaaf"></a><!-- doxytag: member="swscale.h::sws_shiftVec" ref="ga1ca5b9e20145af269c873713c534eaaf" args="(SwsVector *a, int shift)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void <a class="el" href="group__libsws.html#ga1ca5b9e20145af269c873713c534eaaf">sws_shiftVec</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>shift</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<a class="anchor" id="ga3045a5646db319e054d9923220e1c81b"></a><!-- doxytag: member="swscale.h::sws_cloneVec" ref="ga3045a5646db319e054d9923220e1c81b" args="(SwsVector *a)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structSwsVector.html">SwsVector</a>* <a class="el" href="group__libsws.html#ga3045a5646db319e054d9923220e1c81b">sws_cloneVec</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em></td><td>)</td>
<td></td>
</tr>
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<div class="memdoc">
<p>Allocate and return a clone of the vector a, that is a vector with the same coefficients as a. </p>
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<a class="anchor" id="gac9888325d6d97b10c13c8f3ee8d7a03f"></a><!-- doxytag: member="swscale.h::sws_printVec2" ref="gac9888325d6d97b10c13c8f3ee8d7a03f" args="(SwsVector *a, AVClass *log_ctx, int log_level)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void <a class="el" href="group__libsws.html#gac9888325d6d97b10c13c8f3ee8d7a03f">sws_printVec2</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structAVClass.html">AVClass</a> * </td>
<td class="paramname"><em>log_ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>log_level</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<div class="memdoc">
<p>Print with <a class="el" href="group__lavu__log.html#gabd386ffd4b27637cf34e98d5d1a6e8ae" title="Send the specified message to the log if the level is less than or equal to the current av_log_level...">av_log()</a> a textual representation of the vector a if log_level <= av_log_level. </p>
</div>
</div>
<a class="anchor" id="ga5745e8384365fd5c6b0a3241d6ab767b"></a><!-- doxytag: member="swscale.h::sws_freeVec" ref="ga5745e8384365fd5c6b0a3241d6ab767b" args="(SwsVector *a)" -->
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<td class="memname">void <a class="el" href="group__libsws.html#ga5745e8384365fd5c6b0a3241d6ab767b">sws_freeVec</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsVector.html">SwsVector</a> * </td>
<td class="paramname"><em>a</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<a class="anchor" id="gab885b56d729331538917edae65d557dd"></a><!-- doxytag: member="swscale.h::sws_getDefaultFilter" ref="gab885b56d729331538917edae65d557dd" args="(float lumaGBlur, float chromaGBlur, float lumaSharpen, float chromaSharpen, float chromaHShift, float chromaVShift, int verbose)" -->
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<td class="memname"><a class="el" href="structSwsFilter.html">SwsFilter</a>* <a class="el" href="group__libsws.html#gab885b56d729331538917edae65d557dd">sws_getDefaultFilter</a> </td>
<td>(</td>
<td class="paramtype">float </td>
<td class="paramname"><em>lumaGBlur</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"><em>chromaGBlur</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"><em>lumaSharpen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"><em>chromaSharpen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"><em>chromaHShift</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"><em>chromaVShift</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>verbose</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<div class="memdoc">
</div>
</div>
<a class="anchor" id="ga17b762761f7a53d596841ac0f2d4a2b5"></a><!-- doxytag: member="swscale.h::sws_freeFilter" ref="ga17b762761f7a53d596841ac0f2d4a2b5" args="(SwsFilter *filter)" -->
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<td class="memname">void <a class="el" href="group__libsws.html#ga17b762761f7a53d596841ac0f2d4a2b5">sws_freeFilter</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structSwsFilter.html">SwsFilter</a> * </td>
<td class="paramname"><em>filter</em></td><td>)</td>
<td></td>
</tr>
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<div class="memdoc">
</div>
</div>
<a class="anchor" id="gadffa09f208a3eba7fa3a6b1f74ab77f7"></a><!-- doxytag: member="swscale.h::sws_getCachedContext" ref="gadffa09f208a3eba7fa3a6b1f74ab77f7" args="(struct SwsContext *context, int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)" -->
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<td class="memname">struct SwsContext* <a class="el" href="group__libsws.html#gadffa09f208a3eba7fa3a6b1f74ab77f7">sws_getCachedContext</a> </td>
<td>(</td>
<td class="paramtype">struct SwsContext * </td>
<td class="paramname"><em>context</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>srcW</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>srcH</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> </td>
<td class="paramname"><em>srcFormat</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>dstW</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>dstH</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> </td>
<td class="paramname"><em>dstFormat</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>flags</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsFilter.html">SwsFilter</a> * </td>
<td class="paramname"><em>srcFilter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSwsFilter.html">SwsFilter</a> * </td>
<td class="paramname"><em>dstFilter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const double * </td>
<td class="paramname"><em>param</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [read]</code></td>
</tr>
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<p>Check if context can be reused, otherwise reallocate a new one. </p>
<p>If context is NULL, just calls <a class="el" href="group__libsws.html#gaf360d1a9e0e60f906f74d7d44f9abfdd" title="Allocate and return an SwsContext.">sws_getContext()</a> to get a new context. Otherwise, checks if the parameters are the ones already saved in context. If that is the case, returns the current context. Otherwise, frees context and gets a new context with the new parameters.</p>
<p>Be warned that srcFilter and dstFilter are not checked, they are assumed to remain the same. </p>
</div>
</div>
<a class="anchor" id="ga2a140989dfed29dd91065352b6a52840"></a><!-- doxytag: member="swscale.h::sws_convertPalette8ToPacked32" ref="ga2a140989dfed29dd91065352b6a52840" args="(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)" -->
<div class="memitem">
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<td class="memname">void <a class="el" href="group__libsws.html#ga2a140989dfed29dd91065352b6a52840">sws_convertPalette8ToPacked32</a> </td>
<td>(</td>
<td class="paramtype">const uint8_t * </td>
<td class="paramname"><em>src</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t * </td>
<td class="paramname"><em>dst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>num_pixels</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const uint8_t * </td>
<td class="paramname"><em>palette</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Convert an 8-bit paletted frame into a frame with a color depth of 32 bits. </p>
<p>The output frame will have the same packed format as the palette.</p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">src</td><td>source frame buffer </td></tr>
<tr><td class="paramname">dst</td><td>destination frame buffer </td></tr>
<tr><td class="paramname">num_pixels</td><td>number of pixels to convert </td></tr>
<tr><td class="paramname">palette</td><td>array with [256] entries, which must match color arrangement (RGB or BGR) of src </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga3c3d094eb840e10fbc3a37c20a6c8585"></a><!-- doxytag: member="swscale.h::sws_convertPalette8ToPacked24" ref="ga3c3d094eb840e10fbc3a37c20a6c8585" args="(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void <a class="el" href="group__libsws.html#ga3c3d094eb840e10fbc3a37c20a6c8585">sws_convertPalette8ToPacked24</a> </td>
<td>(</td>
<td class="paramtype">const uint8_t * </td>
<td class="paramname"><em>src</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t * </td>
<td class="paramname"><em>dst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>num_pixels</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const uint8_t * </td>
<td class="paramname"><em>palette</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Convert an 8-bit paletted frame into a frame with a color depth of 24 bits. </p>
<p>With the palette format "ABCD", the destination frame ends up with the format "ABC".</p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">src</td><td>source frame buffer </td></tr>
<tr><td class="paramname">dst</td><td>destination frame buffer </td></tr>
<tr><td class="paramname">num_pixels</td><td>number of pixels to convert </td></tr>
<tr><td class="paramname">palette</td><td>array with [256] entries, which must match color arrangement (RGB or BGR) of src </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga14ed8a7188230d908f9f28ae9f7ba459"></a><!-- doxytag: member="swscale.h::sws_get_class" ref="ga14ed8a7188230d908f9f28ae9f7ba459" args="(void)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">const <a class="el" href="structAVClass.html">AVClass</a>* <a class="el" href="group__libsws.html#ga14ed8a7188230d908f9f28ae9f7ba459">sws_get_class</a> </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get the <a class="el" href="structAVClass.html" title="Describe the class of an AVClass context structure.">AVClass</a> for swsContext. </p>
<p>It can be used in combination with AV_OPT_SEARCH_FAKE_OBJ for examining options.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="group__avoptions.html#gae31ae7fb20113b00108d0ecf53f25664" title="Look for an option in an object.">av_opt_find()</a>. </dd></dl>
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