Export function to copy pixels between 2 plane_t structures.

include/vlc_vout.h

@@ -176,6 +176,7 @@ static inline void picture_CopyProperties( picture_t *p_dst, const picture_t *p_
  * only the compatible(smaller) part will be copied.
  */
 VLC_EXPORT( void, picture_CopyPixels, ( picture_t *p_dst, const picture_t *p_src ) );
+VLC_EXPORT( void, plane_CopyPixels, ( plane_t *p_dst, const plane_t *p_src ) );
 
 /**
  * This function will copy both picture dynamic properties and pixels.

src/libvlccore.sym

@@ -259,6 +259,7 @@ path_sanitize
 picture_CopyPixels
 picture_Delete
 picture_New
+plane_CopyPixels
 playlist_Add
 playlist_AddExt
 playlist_AddInput

src/video_output/vout_pictures.c

@@ -1053,23 +1053,27 @@ void picture_CopyPixels( picture_t *p_dst, const picture_t *p_src )
     int i;
 
     for( i = 0; i < p_src->i_planes ; i++ )
-    {
-        const unsigned i_width  = __MIN( p_dst->p[i].i_visible_pitch,
-                                         p_src->p[i].i_visible_pitch );
-        const unsigned i_height = __MIN( p_dst->p[i].i_visible_lines,
-                                         p_src->p[i].i_visible_lines );
+        plane_CopyPixels( p_dst->p+i, p_src->p+i );
+}
 
-        if( p_src->p[i].i_pitch == p_dst->p[i].i_pitch )
+void plane_CopyPixels( plane_t *p_dst, const plane_t *p_src )
+{
+    const unsigned i_width  = __MIN( p_dst->i_visible_pitch,
+                                     p_src->i_visible_pitch );
+    const unsigned i_height = __MIN( p_dst->i_visible_lines,
+                                     p_src->i_visible_lines );
+
+    if( p_src->i_pitch == p_dst->i_pitch )
     {
         /* There are margins, but with the same width : perfect ! */
-            vlc_memcpy( p_dst->p[i].p_pixels, p_src->p[i].p_pixels,
-                        p_src->p[i].i_pitch * i_height );
+        vlc_memcpy( p_dst->p_pixels, p_src->p_pixels,
+                    p_src->i_pitch * i_height );
     }
     else
     {
         /* We need to proceed line by line */
-            uint8_t *p_in = p_src->p[i].p_pixels;
-            uint8_t *p_out = p_dst->p[i].p_pixels;
+        uint8_t *p_in = p_src->p_pixels;
+        uint8_t *p_out = p_dst->p_pixels;
         int i_line;
 
         assert( p_in );
@@ -1078,9 +1082,8 @@ void picture_CopyPixels( picture_t *p_dst, const picture_t *p_src )
         for( i_line = i_height; i_line--; )
         {
             vlc_memcpy( p_out, p_in, i_width );
-                p_in += p_src->p[i].i_pitch;
-                p_out += p_dst->p[i].i_pitch;
-            }
+            p_in += p_src->i_pitch;
+            p_out += p_dst->i_pitch;
         }
     }
 }