From affb93ab169aadfa61a659982327e6d069e377ae Mon Sep 17 00:00:00 2001
From: lilo_booter <lilo_booter@d19143bc-622f-0410-bfdd-b5b2a6649095>
Date: Wed, 29 Mar 2006 08:30:01 +0000
Subject: [PATCH] + Preparation for a QT image loader (to allow optional and
 functionally equivalent qt or gtk2 usage for image loading)

git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@900 d19143bc-622f-0410-bfdd-b5b2a6649095
---
 src/framework/mlt_frame.c | 81 +++++++++++++++++++++++++++++++++++++++
 src/framework/mlt_frame.h |  2 +
 2 files changed, 83 insertions(+)

diff --git a/src/framework/mlt_frame.c b/src/framework/mlt_frame.c
index f072bdd1..3028e2cb 100644
--- a/src/framework/mlt_frame.c
+++ b/src/framework/mlt_frame.c
@@ -610,6 +610,87 @@ 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_yuv420p_to_yuv422( uint8_t *yuv420p, int width, int height, int stride, uint8_t *yuv )
 {
 	int ret = 0;
diff --git a/src/framework/mlt_frame.h b/src/framework/mlt_frame.h
index 9aa996c9..7742f5a6 100644
--- a/src/framework/mlt_frame.h
+++ b/src/framework/mlt_frame.h
@@ -76,6 +76,8 @@ extern void mlt_frame_close( mlt_frame self );
 /* convenience functions */
 extern int mlt_convert_rgb24a_to_yuv422( uint8_t *rgba, int width, int height, int stride, uint8_t *yuv, uint8_t *alpha );
 extern int mlt_convert_rgb24_to_yuv422( uint8_t *rgb, int width, int height, int stride, uint8_t *yuv );
+extern int mlt_convert_bgr24a_to_yuv422( uint8_t *rgba, int width, int height, int stride, uint8_t *yuv, uint8_t *alpha );
+extern int mlt_convert_bgr24_to_yuv422( uint8_t *rgb, int width, int height, int stride, uint8_t *yuv );
 extern int mlt_convert_yuv420p_to_yuv422( uint8_t *yuv420p, int width, int height, int stride, uint8_t *yuv );
 extern uint8_t *mlt_frame_resize_yuv422( mlt_frame self, int owidth, int oheight );
 extern uint8_t *mlt_frame_rescale_yuv422( mlt_frame self, int owidth, int oheight );
-- 
2.39.2