Add option to enable build of G.726 codec when building with CMake.

CMakeLists.txt

@@ -84,6 +84,7 @@ cmake_dependent_option(ENABLE_QSA "Enable QSA (QNX Sound Architecture) support."
 cmake_dependent_option(ENABLE_OSS "Enable OSS support." NO "ENABLE_SOUND;LINUX_OR_BSD" NO)
 cmake_dependent_option(ENABLE_PORTAUDIO "Enable portaudio native support." NO "ENABLE_SOUND" NO)
 cmake_dependent_option(ENABLE_PULSEAUDIO "Enable pulseaudio support." YES "ENABLE_SOUND" NO)
+option(ENABLE_G726 "Build mediastreamer2 with the G726 codec." NO)
 option(ENABLE_GSM "Build mediastreamer2 with the GSM codec." YES)
 option(ENABLE_BV16 "Build mediastreamer2 with the BV16 codec." YES)
 option(ENABLE_OPUS "Build mediastreamer2 with the OPUS codec." YES)
@@ -184,6 +185,9 @@ if(ENABLE_ZRTP)
 		set(ENABLE_ZRTP OFF CACHE BOOL "Build mediastreamer2 with ZRTP support." FORCE)
 	endif()
 endif()
+if(ENABLE_G726)
+	find_package(SpanDSP REQUIRED)
+endif()
 if(ENABLE_GSM)
 	find_package(GSM)
 	if(NOT GSM_FOUND)
@@ -338,6 +342,9 @@ endif()
 if(SRTP_FOUND)
 	include_directories(${SRTP_INCLUDE_DIRS})
 endif()
+if(SPANDSP_FOUND)
+	include_directories(${SPANDSP_INCLUDE_DIRS})
+endif()
 if(GSM_FOUND)
 	include_directories(${GSM_INCLUDE_DIRS})
 endif()

cmake/FindSpanDSP.cmake

+############################################################################
+# FindSpanDSP.txt
+# Copyright (C) 2016  Belledonne Communications, Grenoble France
+#
+############################################################################
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+############################################################################
+#
+# - Find the spandsp include file and library
+#
+#  SPANDSP_FOUND - system has spandsp
+#  SPANDSP_INCLUDE_DIRS - the spandsp include directory
+#  SPANDSP_LIBRARIES - The libraries needed to use spandsp
+
+find_path(SPANDSP_INCLUDE_DIRS
+	NAMES spandsp.h
+	PATH_SUFFIXES include
+)
+if(SPANDSP_INCLUDE_DIRS)
+	set(HAVE_SPANDSP_H 1)
+endif()
+
+find_library(SPANDSP_LIBRARIES
+	NAMES spandsp
+	PATH_SUFFIXES bin lib
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(SpanDSP
+	DEFAULT_MSG
+	SPANDSP_INCLUDE_DIRS SPANDSP_LIBRARIES HAVE_SPANDSP_H
+)
+
+mark_as_advanced(SPANDSP_INCLUDE_DIRS SPANDSP_LIBRARIES HAVE_SPANDSP_H)

src/CMakeLists.txt

@@ -238,6 +238,9 @@ if(WIN32 AND NOT CMAKE_SYSTEM_NAME STREQUAL "WindowsPhone" AND NOT CMAKE_SYSTEM_
 	list(APPEND VOIP_SOURCE_FILES_C audiofilters/winsnd3.c)
 endif()
 
+if(ENABLE_G726)
+	list(APPEND VOIP_SOURCE_FILES_C audiofilters/g726.c)
+endif()
 if(GSM_FOUND)
 	list(APPEND VOIP_SOURCE_FILES_C audiofilters/gsm.c)
 endif()
@@ -496,6 +499,9 @@ endif()
 if(SRTP_FOUND)
 	list(APPEND VOIP_LIBS ${SRTP_LIBRARIES})
 endif()
+if(SPANDSP_FOUND)
+	list(APPEND VOIP_LIBS ${SPANDSP_LIBRARIES})
+endif()
 if(GSM_FOUND)
 	list(APPEND VOIP_LIBS ${GSM_LIBRARIES})
 endif()