Migrate caps to new system. Change to using a simple convolution to create outline.

Original commit message from CVS:
Migrate caps to new system.  Change to using a simple convolution
to create outline.

diff --git a/ext/pango/gsttextoverlay.c b/ext/pango/gsttextoverlay.c
index 9778268..e17078e 100644 (file)
--- a/ext/pango/gsttextoverlay.c
+++ b/ext/pango/gsttextoverlay.c
@@ -39,7 +39,7 @@ GST_PAD_TEMPLATE_FACTORY(textoverlay_src_template_factory,
                         GST_PAD_ALWAYS,
                         GST_CAPS_NEW(
                             "textoverlay_src",
-                            "video/raw",
+                            "video/x-raw-yuv",
                             "format",          GST_PROPS_LIST(
                                 GST_PROPS_FOURCC(GST_STR_FOURCC("I420"))
                                 ),
@@ -54,7 +54,7 @@ GST_PAD_TEMPLATE_FACTORY(video_sink_template_factory,
                         GST_PAD_ALWAYS,
                         GST_CAPS_NEW(
                             "video_sink",
-                            "video/raw",
+                            "video/x-raw-yuv",
                             "format",          GST_PROPS_LIST(
                                 GST_PROPS_FOURCC(GST_STR_FOURCC("I420"))
                                 ),
@@ -274,10 +274,10 @@ gst_text_overlay_blit_yuv420(GstTextOverlay *overlay, FT_Bitmap *bitmap,
       for(n=bitmap_width; n>0; --n){
        v = *bitp;
        if (v) {
-         p[-1] = 0;
-         p[ 1] = 0;
-         p[-video_width] = 0;
-         p[ video_width] = 0;
+         p[-1] = CLAMP(p[-1] - v, 0, 255);
+         p[ 1] = CLAMP(p[ 1] - v, 0, 255);
+         p[-video_width] = CLAMP(p[-video_width] - v, 0, 255);
+         p[ video_width] = CLAMP(p[ video_width] - v, 0, 255);
        }
        p++;
        bitp++;