Added a subpicture_NewFromPicture helper.

[vlc] / src / video_output / vout_subpictures.c

diff --git a/src/video_output/vout_subpictures.c b/src/video_output/vout_subpictures.c
index 84ac9996fee7792978c0492e72e982dc478b59aa..415e8c65570b091bc62d2ddd879985353f04934d 100644 (file)
--- a/src/video_output/vout_subpictures.c
+++ b/src/video_output/vout_subpictures.c
@@ -37,6 +37,7 @@
 #include <vlc_osd.h>
 #include "../libvlc.h"
 #include "vout_internal.h"
+#include <vlc_image.h>
 
 #include <assert.h>
 #include <limits.h>
@@ -719,6 +720,56 @@ static void SubpictureChain( subpicture_t **pp_head, subpicture_t *p_subpic )
     *pp_head = p_subpic;
 }
 
+subpicture_t *subpicture_NewFromPicture( vlc_object_t *p_obj,
+                                         picture_t *p_picture, vlc_fourcc_t i_chroma )
+{
+    /* */
+    video_format_t fmt_in = p_picture->format;
+
+    /* */
+    video_format_t fmt_out;
+    fmt_out = fmt_in;
+    fmt_out.i_chroma = i_chroma;
+
+    /* */
+    image_handler_t *p_image = image_HandlerCreate( p_obj );
+    if( !p_image )
+        return NULL;
+
+    picture_t *p_pip = image_Convert( p_image, p_picture, &fmt_in, &fmt_out );
+
+    image_HandlerDelete( p_image );
+
+    if( !p_pip )
+        return NULL;
+
+    subpicture_t *p_subpic = subpicture_New();
+    if( !p_subpic )
+    {
+         picture_Release( p_pip );
+         return NULL;
+    }
+
+    p_subpic->i_original_picture_width  = fmt_out.i_width;
+    p_subpic->i_original_picture_height = fmt_out.i_height;
+
+    fmt_out.i_aspect = 0;
+    fmt_out.i_sar_num =
+    fmt_out.i_sar_den = 0;
+
+    p_subpic->p_region = subpicture_region_New( &fmt_out );
+    if( p_subpic->p_region )
+    {
+        picture_Release( p_subpic->p_region->p_picture );
+        p_subpic->p_region->p_picture = p_pip;
+    }
+    else
+    {
+        picture_Release( p_pip );
+    }
+    return p_subpic;
+}
+
 /*****************************************************************************
  * subpicture_region_t allocation
  *****************************************************************************/