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Add function to translate SWS_CS_* to coefficient array
Originally committed as revision 30513 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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@ -30,7 +30,7 @@
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#include "libavutil/avutil.h"
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#define LIBSWSCALE_VERSION_MAJOR 0
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#define LIBSWSCALE_VERSION_MINOR 9
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#define LIBSWSCALE_VERSION_MINOR 10
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#define LIBSWSCALE_VERSION_MICRO 0
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#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \
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@ -103,6 +103,12 @@ const char *swscale_license(void);
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#define SWS_CS_SMPTE240M 7
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#define SWS_CS_DEFAULT 5
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/**
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* Returns a pointer to yuv<->rgb coefficients for the given colorspace
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* suitable for sws_setColorspaceDetails()
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* @colorspace one of SWS_CS_* If invalid, SWS_CS_DEFAULT is used.
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*/
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const int * sws_getCoefficients(int colorspace);
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// when used for filters they must have an odd number of elements
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@ -49,6 +49,13 @@ const int32_t ff_yuv2rgb_coeffs[8][4] = {
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{117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
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};
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const int * sws_getCoefficients(int colorspace)
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{
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if (colorspace > 7 || colorspace < 0)
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colorspace = SWS_CS_DEFAULT;
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return ff_yuv2rgb_coeffs[colorspace];
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}
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#define LOADCHROMA(i) \
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U = pu[i]; \
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V = pv[i]; \
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