X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_frame.c;h=9c6922b19f3c3ba1388c8dbb11aaa6320017a2ad;hb=a2c29b04aabe82b14851b905fca993f9f471bc6b;hp=f072bdd1e4e461b47ff6b32472f0ca32f0413e80;hpb=eabc3498604fc7983bbd805d40dad2e7df135f17;p=melted

diff --git a/src/framework/mlt_frame.c b/src/framework/mlt_frame.c
index f072bdd..9c6922b 100644
--- a/src/framework/mlt_frame.c
+++ b/src/framework/mlt_frame.c
@@ -529,6 +529,41 @@ void mlt_frame_close( mlt_frame this )
 
 /***** convenience functions *****/
 
+int mlt_convert_yuv422_to_rgb24a( uint8_t *yuv, uint8_t *rgba, unsigned int total )
+{
+	int ret = 0;
+	int yy, uu, vv, ug_plus_vg, ub, vr;
+      	int r,g,b;
+	total /= 2;
+	while (total--) 
+	{
+		yy = yuv[0] << 8;
+		uu = yuv[1] - 128;
+		vv = yuv[3] - 128;
+		ug_plus_vg = uu * 88 + vv * 183;
+		ub = uu * 454;
+		vr = vv * 359;
+		r = (yy + vr) >> 8;
+		g = (yy - ug_plus_vg) >> 8;
+		b = (yy + ub) >> 8;
+		rgba[0] = r < 0 ? 0 : (r > 255 ? 255 : (unsigned char)r);
+		rgba[1] = g < 0 ? 0 : (g > 255 ? 255 : (unsigned char)g);
+		rgba[2] = b < 0 ? 0 : (b > 255 ? 255 : (unsigned char)b);
+		rgba[3] = 255;
+		yy = yuv[2] << 8;
+		r = (yy + vr) >> 8;
+		g = (yy - ug_plus_vg) >> 8;
+		b = (yy + ub) >> 8;
+		rgba[4] = r < 0 ? 0 : (r > 255 ? 255 : (unsigned char)r);
+		rgba[5] = g < 0 ? 0 : (g > 255 ? 255 : (unsigned char)g);
+		rgba[6] = b < 0 ? 0 : (b > 255 ? 255 : (unsigned char)b);
+		rgba[7] = 255;
+		yuv += 4;
+		rgba += 8;
+	}
+	return ret;
+}
+
 int mlt_convert_rgb24a_to_yuv422( uint8_t *rgba, int width, int height, int stride, uint8_t *yuv, uint8_t *alpha )
 {
 	int ret = 0;
@@ -610,6 +645,129 @@ int mlt_convert_rgb24_to_yuv422( uint8_t *rgb, int width, int height, int stride
 	return ret;
 }
 
+int mlt_convert_bgr24a_to_yuv422( uint8_t *rgba, int width, int height, int stride, uint8_t *yuv, uint8_t *alpha )
+{
+	int ret = 0;
+	register int y0, y1, u0, u1, v0, v1;
+	register int r, g, b;
+	register uint8_t *d = yuv;
+	register int i, j;
+
+	for ( i = 0; i < height; i++ )
+	{
+		register uint8_t *s = rgba + ( stride * i );
+		for ( j = 0; j < ( width / 2 ); j++ )
+		{
+			b = *s++;
+			g = *s++;
+			r = *s++;
+			*alpha++ = *s++;
+			RGB2YUV (r, g, b, y0, u0 , v0);
+			b = *s++;
+			g = *s++;
+			r = *s++;
+			*alpha++ = *s++;
+			RGB2YUV (r, g, b, y1, u1 , v1);
+			*d++ = y0;
+			*d++ = (u0+u1) >> 1;
+			*d++ = y1;
+			*d++ = (v0+v1) >> 1;
+		}
+		if ( width % 2 )
+		{
+			b = *s++;
+			g = *s++;
+			r = *s++;
+			*alpha++ = *s++;
+			RGB2YUV (r, g, b, y0, u0 , v0);
+			*d++ = y0;
+			*d++ = u0;
+		}
+	}
+	return ret;
+}
+
+int mlt_convert_bgr24_to_yuv422( uint8_t *rgb, int width, int height, int stride, uint8_t *yuv )
+{
+	int ret = 0;
+	register int y0, y1, u0, u1, v0, v1;
+	register int r, g, b;
+	register uint8_t *d = yuv;
+	register int i, j;
+
+	for ( i = 0; i < height; i++ )
+	{
+		register uint8_t *s = rgb + ( stride * i );
+		for ( j = 0; j < ( width / 2 ); j++ )
+		{
+			b = *s++;
+			g = *s++;
+			r = *s++;
+			RGB2YUV (r, g, b, y0, u0 , v0);
+			b = *s++;
+			g = *s++;
+			r = *s++;
+			RGB2YUV (r, g, b, y1, u1 , v1);
+			*d++ = y0;
+			*d++ = (u0+u1) >> 1;
+			*d++ = y1;
+			*d++ = (v0+v1) >> 1;
+		}
+		if ( width % 2 )
+		{
+			b = *s++;
+			g = *s++;
+			r = *s++;
+			RGB2YUV (r, g, b, y0, u0 , v0);
+			*d++ = y0;
+			*d++ = u0;
+		}
+	}
+	return ret;
+}
+
+int mlt_convert_argb_to_yuv422( uint8_t *rgba, int width, int height, int stride, uint8_t *yuv, uint8_t *alpha )
+{
+	int ret = 0;
+	register int y0, y1, u0, u1, v0, v1;
+	register int r, g, b;
+	register uint8_t *d = yuv;
+	register int i, j;
+
+	for ( i = 0; i < height; i++ )
+	{
+		register uint8_t *s = rgba + ( stride * i );
+		for ( j = 0; j < ( width / 2 ); j++ )
+		{
+			*alpha++ = *s++;
+			r = *s++;
+			g = *s++;
+			b = *s++;
+			RGB2YUV (r, g, b, y0, u0 , v0);
+			*alpha++ = *s++;
+			r = *s++;
+			g = *s++;
+			b = *s++;
+			RGB2YUV (r, g, b, y1, u1 , v1);
+			*d++ = y0;
+			*d++ = (u0+u1) >> 1;
+			*d++ = y1;
+			*d++ = (v0+v1) >> 1;
+		}
+		if ( width % 2 )
+		{
+			*alpha++ = *s++;
+			r = *s++;
+			g = *s++;
+			b = *s++;
+			RGB2YUV (r, g, b, y0, u0 , v0);
+			*d++ = y0;
+			*d++ = u0;
+		}
+	}
+	return ret;
+}
+
 int mlt_convert_yuv420p_to_yuv422( uint8_t *yuv420p, int width, int height, int stride, uint8_t *yuv )
 {
 	int ret = 0;