[FFmpeg-trac] #1738(undetermined:new): x11grab BadCursor

[FFmpeg]

#1738: x11grab BadCursor
-------------------------------------+-------------------------------------
             Reporter:  idooley      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  x11grab      |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by jensb):

 I had to modify the above patch a bit, so it works with the ffmpeg version
 0.8.3, that ships with Ubuntu 12.04.

 I'll put it here, so it may be useful for others. Hope you do not mind.

 {{{
 --- libav-0.8.3.orig/libavdevice/x11grab.c
 +++ libav-0.8.3/libavdevice/x11grab.c
 @@ -43,6 +43,7 @@
  #include "libavutil/opt.h"
  #include "libavutil/parseutils.h"
  #include <time.h>
 +#include <X11/cursorfont.h>
  #include <X11/X.h>
  #include <X11/Xlib.h>
  #include <X11/Xlibint.h>
 @@ -342,6 +343,7 @@ paint_mouse_pointer(XImage *image, struc
      int x, y;
      int line, column;
      int to_line, to_column;
 +    Cursor c; Window w; XSetWindowAttributes attr;
      int pixstride = image->bits_per_pixel >> 3;
      /* Warning: in its insanity, xlib provides unsigned image data
 through a
       * char* pointer, so we have to make it uint8_t to make things not
 break.
 @@ -353,6 +355,11 @@ paint_mouse_pointer(XImage *image, struc
      if (image->bits_per_pixel != 24 && image->bits_per_pixel != 32)
          return;

 +    c = XCreateFontCursor(dpy, XC_left_ptr);
 +    w = DefaultRootWindow(dpy);
 +    attr.cursor = c;
 +    XChangeWindowAttributes(dpy, w, CWCursor, &attr);
 +
      xcim = XFixesGetCursorImage(dpy);

      x = xcim->x - xcim->xhot;
 }}}

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1738#comment:1>
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