Lane Brooks e2150b11ff textoverlay: converted AYUV to use 'A OVER B' alpha compositing ... 'A OVER B' compositing is explained at http://en.wikipedia.org/wiki/Alpha_compositing. Previously, overlaying text on a transparent background image left the text overlay also transparent. This pipeline shows such an example: gst-launch videotestsrc pattern=white ! video/x-raw-yuv,format=\(fourcc\)AYUV ! alpha alpha=0.0 ! textoverlay text=Testing auto-resize=False font-desc=60px ! videomixer ! ffmpegcolorspace ! autovideosink With this patch, text is composited "OVER" the background image and thus is visible regardless of the alpha of the background image. The overlay in the above pipeline works after applying this patch.		2011-04-01 10:35:08 +02:00
..
gstclockoverlay.c	clockoverlay: only rerender text if time string has changed	2010-08-24 09:29:33 +02:00
gstclockoverlay.h	clockoverlay: only rerender text if time string has changed	2010-08-24 09:29:33 +02:00
gsttextoverlay.c	textoverlay: converted AYUV to use 'A OVER B' alpha compositing	2011-04-01 10:35:08 +02:00
gsttextoverlay.h	textoverlay: Clean up alignment docs a bit and remove horiz top alignment enum	2011-03-16 15:03:51 +00:00
gsttextrender.c	pango: Unpremultiply Cairo's ARGB to match GStreamers ARGB	2009-10-01 11:41:16 +02:00
gsttextrender.h	pango: Use pango-cairo instead of pango-ft2	2009-08-06 06:43:36 +02:00
gsttimeoverlay.c	pango: Some minor cleanup	2009-08-06 06:43:36 +02:00
gsttimeoverlay.h	Updated/added documentation.	2006-03-01 16:24:37 +00:00
Makefile.am	textoverlay: make some properties controllable	2011-01-06 23:02:23 +00:00