Merge commit 'a6674d2e'

* commit 'a6674d2e':
  xcbgrab: XCB-based screen capture

Conflicts:
	Changelog
	configure
	libavdevice/Makefile
	libavdevice/alldevices.c
	libavdevice/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Changelog

@@ -8,6 +8,7 @@ version <next>:
 - CAST128 symmetric block cipher, ECB mode
 - STL subtitle demuxer and decoder
 - libutvideo YUV 4:2:2 10bit support
+- XCB-based screen-grabber
 
 version 2.4:
 - Icecast protocol

configure

@@ -251,6 +251,9 @@ External library support:
   --enable-libx264         enable H.264 encoding via x264 [no]
   --enable-libx265         enable HEVC encoding via x265 [no]
   --enable-libxavs         enable AVS encoding via xavs [no]
+  --enable-libxcb          enable X11 grabbing using XCB [no]
+  --enable-libxcb-shm      enable X11 grabbing shm communication [auto]
+  --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [auto]
   --enable-libxvid         enable Xvid encoding via xvidcore,
                            native MPEG-4/Xvid encoder exists [no]
   --enable-libzmq          enable message passing via libzmq [no]
@@ -262,7 +265,7 @@ External library support:
   --enable-opengl          enable OpenGL rendering [no]
   --enable-openssl         enable openssl [no]
   --disable-sdl            disable sdl [autodetect]
-  --enable-x11grab         enable X11 grabbing [no]
+  --enable-x11grab         enable X11 grabbing (legacy) [no]
   --disable-xlib           disable xlib [autodetect]
   --disable-zlib           disable zlib [autodetect]
 
@@ -1381,6 +1384,9 @@ EXTERNAL_LIBRARY_LIST="
     libx264
     libx265
     libxavs
+    libxcb
+    libxcb_shm
+    libxcb_xfixes
     libxvid
     libzmq
     libzvbi
@@ -2495,6 +2501,7 @@ vfwcap_indev_extralibs="-lavicap32"
 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
 xv_outdev_extralibs="-lXv -lX11 -lXext"
 x11grab_indev_deps="x11grab"
+x11grab_xcb_indev_deps="libxcb"
 
 # protocols
 bluray_protocol_deps="libbluray"
@@ -5015,10 +5022,30 @@ fi
 enabled xlib &&
     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
 
-enabled x11grab                                           &&
-require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
-require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
-{ enabled xlib || die "ERROR: Xlib not found"; }
+if enabled libxcb || enabled x11grab && ! disabled libxcb; then
+    check_pkg_config xcb-event xcb/xcb.h xcb_connect || {
+        enabled libxcb && die "ERROR: libxcb not found";
+    } && disable x11grab && enable libxcb
+
+    disabled libxcb_shm ||
+        check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
+            enabled libxcb_shm && die "ERROR: libxcb_shm not found";
+        } && check_header sys/shm.h && enable libxcb_shm
+
+    disabled libxcb_xfixes ||
+        check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
+            enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
+        } && enable libxcb_xfixes
+
+    add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
+    add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
+fi
+
+if enabled x11grab; then
+    enabled xlib || die "ERROR: Xlib not found"
+    require Xext X11/extensions/XShm.h XShmCreateImage -lXext
+    require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
+fi
 
 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
 

libavdevice/Makefile

@@ -47,6 +47,7 @@ OBJS-$(CONFIG_V4L2_OUTDEV)               += v4l2enc.o v4l2-common.o
 OBJS-$(CONFIG_V4L_INDEV)                 += v4l.o
 OBJS-$(CONFIG_VFWCAP_INDEV)              += vfwcap.o
 OBJS-$(CONFIG_X11GRAB_INDEV)             += x11grab.o
+OBJS-$(CONFIG_X11GRAB_XCB_INDEV)         += xcbgrab.o
 OBJS-$(CONFIG_XV_OUTDEV)                 += xv.o
 
 # external libraries

libavdevice/alldevices.c

@@ -69,6 +69,7 @@ void avdevice_register_all(void)
 //    REGISTER_INDEV   (V4L,              v4l
     REGISTER_INDEV   (VFWCAP,           vfwcap);
     REGISTER_INDEV   (X11GRAB,          x11grab);
+    REGISTER_INDEV   (X11GRAB_XCB,      x11grab_xcb);
     REGISTER_OUTDEV  (XV,               xv);
 
     /* external libraries */

libavdevice/version.h

@@ -28,7 +28,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVDEVICE_VERSION_MAJOR 56
-#define LIBAVDEVICE_VERSION_MINOR  1
+#define LIBAVDEVICE_VERSION_MINOR  2
 #define LIBAVDEVICE_VERSION_MICRO 100
 
 #define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \