Original X11 device demuxer patch from Clemens Fruhwirth

- Build system integration is equivalent to RFC #6 patch
- Same rule applies to ffmpeg.c/allformats.[c|h]
- x11grab.c is from Clemens Fruhwirth except the x11 grab
  structure for libavformat registration is renamed to
    match build system integration.

Originally committed as revision 7302 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 10 insertions, 0 deletions

diff --git a/configure b/configure
index be4e574738..5899568448 100755
--- a/configure
+++ b/configure
@@ -1659,6 +1659,16 @@ int dummy = V4L2_PIX_FMT_YUV420;
 struct v4l2_buffer dummy1;
 EOF
 
+# Deal with the x11 frame grabber
+enabled gpl                             &&
+enabled x11_grab_device_demuxer         &&
+check_header X11/Xlib.h                 &&
+check_header X11/extensions/XShm.h      &&
+check_func XOpenDisplay -lX11           &&
+check_func XShmCreateImage -lX11 -lXext &&
+add_extralibs -lX11 -lXext              ||
+disable x11_grab_device_demuxer
+
 enabled debug && add_cflags -g
 
 # add some useful compiler flags if supported