[FFmpeg-cvslog] Force opaque alpha channel for 32bit x11grab image.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Sun Nov 13 02:02:06 2011 +0100| [b3c67372a522bfc57d783dfe839a07028d0d8e13] | committer: Carl Eugen Hoyos

Force opaque alpha channel for 32bit x11grab image.

Fixes ticket #163.
Approved-by: Clemens Fruhwirth
Approved-by: Edouard Gomez

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b3c67372a522bfc57d783dfe839a07028d0d8e13
---

 libavdevice/x11grab.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/libavdevice/x11grab.c b/libavdevice/x11grab.c
index c2a67d7..2ecf88c 100644
--- a/libavdevice/x11grab.c
+++ b/libavdevice/x11grab.c
@@ -537,6 +537,8 @@ x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
             av_log (s1, AV_LOG_INFO, "XGetZPixmap() failed\n");
         }
     }
+    if (image->bits_per_pixel == 32)
+        XAddPixel(image, 0xFF000000);
 
     if (s->draw_mouse) {
         paint_mouse_pointer(image, s);