+ Preparation for a QT image loader (to allow optional and functionally equivalent...

git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@900 d19143bc-622f-0410-bfdd-b5b2a6649095

diff --git a/src/framework/mlt_frame.c b/src/framework/mlt_frame.c
index f072bdd1e4e461b47ff6b32472f0ca32f0413e80..3028e2cbc8a5cccafedf116daf9b0564cd9cc19a 100644 (file)
--- 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 9aa996c9f7b332a0d9d57e9f2b29a7a38667b553..7742f5a6144b8a0cc055dca5d9b13e4ab9f2ede8 100644 (file)
--- 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 );