Add Bluetooth SBC Codec support in cmake

SBC Codec can be optionally linked with Wireshark to provide
ability to playing RTP/SBC stream by RTP Player.

Change-Id: Iffbae16a741ffbfd0fb55a300064739d2c27c2e5
Reviewed-on: https://code.wireshark.org/review/223
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Evan Huus <eapache@gmail.com>

CMakeLists.txt

@@ -499,6 +499,10 @@ if(ENABLE_NETLINK)
 	set(PACKAGELIST ${PACKAGELIST} NL)
 endif()
 
+if(ENABLE_SBC)
+	set(PACKAGELIST ${PACKAGELIST} SBC)
+endif()
+
 # Capabilities
 if(ENABLE_CAP)
 	set(PACKAGELIST ${PACKAGELIST} CAP SETCAP)
@@ -590,6 +594,9 @@ endif()
 if(HAVE_LIBNL AND HAVE_AIRPCAP)
 	message(ERROR "Airpcap and Libnl support are mutually exclusive")
 endif()
+if(HAVE_LIBSBC)
+    set(HAVE_SBC 1)
+endif()
 # No matter which version of GTK is present
 if(GTK2_FOUND OR GTK3_FOUND)
 	set(GTK_FOUND ON)

CMakeOptions.txt

@@ -56,6 +56,7 @@ option(ENABLE_CARES      "Build with c-ares support" ON)
 option(ENABLE_NETLINK    "Build with libnl support" ON)
 # todo Mostly hardcoded
 option(ENABLE_KERBEROS   "Build with Kerberos support" ON)
+option(ENABLE_SBC        "Build with SBC Codec support in RTP Player" ON)
 # How to install
 set(DUMPCAP_INSTALL_OPTION   "normal" CACHE STRING "Permissions to install")
 set(DUMPCAP_INST_VALS "normal" "suid" "capabilities")

cmake/modules/FindSBC.cmake

@@ -0,0 +1,35 @@
+# Find the native Bluetooth SBC Codec includes and library
+#
+#  SBC_INCLUDE_DIRS - where to find sbc.h
+#  SBC_LIBRARIES    - List of libraries when using SBC
+#  SBC_FOUND        - True if SBC found
+
+include( FindWSWinLibs )
+FindWSWinLibs( "sbc" "SBC_HINTS" )
+
+find_path( SBC_INCLUDE_DIR
+  NAMES
+  sbc/sbc.h
+  HINTS
+    "${SBC_HINTS}/include"
+)
+
+find_library( SBC_LIBRARY
+  NAMES
+    sbc
+  HINTS
+    "${SBC_HINTS}/lib"
+)
+
+include( FindPackageHandleStandardArgs )
+find_package_handle_standard_args( SBC DEFAULT_MSG SBC_INCLUDE_DIR SBC_LIBRARY )
+
+if( SBC_FOUND )
+  set( SBC_INCLUDE_DIRS ${SBC_INCLUDE_DIR} )
+  set( SBC_LIBRARIES ${SBC_LIBRARY} )
+else()
+  set( SBC_INCLUDE_DIRS )
+  set( SBC_LIBRARIES )
+endif()
+
+mark_as_advanced( SBC_LIBRARIES SBC_INCLUDE_DIRS )

cmakeconfig.h.in

@@ -243,6 +243,9 @@
 /* Define if sa_len field exists in struct sockaddr */
 #cmakedefine HAVE_SA_LEN 1
 
+/* Define to 1 if you want to playing SBC by standalone BlueZ SBC library */
+#cmakedefine HAVE_SBC 1
+
 /* Define to 1 if you have the `setresgid' function. */
 #cmakedefine HAVE_SETRESGID 1