Provide framework to define a video output area within the OSD area.

The supplied functions and constants allow to define a video output area
(called video window) within the OSD area to show for example a small
preview of the current channel in the top right corner while zapping
through the channel list displayed as OSD.
A VDPAU enabled xine-lib implements VO_CAP_VIDEO_WINDOW_OVERLAY already.

2 files changed, 18 insertions, 0 deletions

diff --git a/include/xine/osd.h b/include/xine/osd.h
index b22c02996..ef0994e8a 100644
--- a/include/xine/osd.h
+++ b/include/xine/osd.h
@@ -43,6 +43,10 @@ struct osd_object_s {
   int area_touched;     /* work area was used for painting */
   int display_x,display_y;  /* where to display it in screen */
 
+  /* video output area within osd extent */
+  int video_window_x, video_window_y;
+  int video_window_width, video_window_height;
+
   /* extent of reference coordinate system */
   int extent_width, extent_height;
   
@@ -237,6 +241,13 @@ struct osd_renderer_s {
   void (*set_argb_buffer) (osd_object_t *osd, uint32_t *argb_buffer,
                            int dirty_x, int dirty_y, int dirty_width, int dirty_height);
 
+  /*
+   * osd video window defines an area withing osd extent where the
+   * video shall be scaled to while an osd is displayed on screen.
+   * both width and height must be > 0 to take effect.
+   */
+  void (*set_video_window) (osd_object_t *osd,
+                            int window_x, int window_y, int window_width, int window_height);
 
   /* private stuff */
 
diff --git a/include/xine/video_out.h b/include/xine/video_out.h
index 9da1a596f..d152ddec4 100644
--- a/include/xine/video_out.h
+++ b/include/xine/video_out.h
@@ -296,6 +296,7 @@ struct xine_video_port_s {
 #define VO_CAP_ZOOM_Y                 0x00800000
 #define VO_CAP_CUSTOM_EXTENT_OVERLAY  0x01000000 /* driver can blend custom extent overlay to output extent */
 #define VO_CAP_ARGB_LAYER_OVERLAY     0x02000000 /* driver supports true color overlay */
+#define VO_CAP_VIDEO_WINDOW_OVERLAY   0x04000000 /* driver can scale video to an area within overlay */
 
 /*
  * vo_driver_s contains the functions every display driver
@@ -442,6 +443,12 @@ struct vo_overlay_s {
   int               width;         /* width of subpicture area         */
   int               height;        /* height of subpicture area        */
 
+  /* area within osd extent to scale video to */
+  int               video_window_x;
+  int               video_window_y;
+  int               video_window_width;
+  int               video_window_height;
+
   /* extent of reference coordinate system */
   int               extent_width;
   int               extent_height;