Re #1219: added configure option to specify ffmpeg path

git-svn-id: https://svn.pjsip.org/repos/pjproject/branches/projects/2.0-dev@3533 74dad513-b988-da41-8d7b-12977e46ad98

aconfigure

@@ -729,6 +729,7 @@ enable_ilbc_codec
 enable_libsamplerate
 enable_sdl
 enable_ffmpeg
+with_ffmpeg
 enable_v4l2
 enable_ipp
 with_ipp
@@ -1409,6 +1410,7 @@ Optional Packages:
                           set, make sure that PortAudio is accessible to use
                           (hint: use CFLAGS and LDFLAGS env var to set the
                           include/lib paths)
+  --with-ffmpeg=DIR       Specify alternate FFMPEG prefix
   --with-ipp=DIR          Specify the Intel IPP location
   --with-ipp-samples=DIR  Specify the Intel IPP samples location
   --with-ipp-arch=ARCH    Specify the Intel IPP ARCH suffix, e.g. "64" or
@@ -5921,6 +5923,15 @@ else
 
 
 
+		FFMPEG_PREFIX=""
+    		if test "x$with_ffmpeg" != "xno" -a "x$with_ffmpeg" != "x"; then
+			FFMPEG_PREFIX=$with_ffmpeg
+			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Using ffmpeg prefix... $FFMPEG_PREFIX" >&5
+$as_echo "Using ffmpeg prefix... $FFMPEG_PREFIX" >&6; }
+			LIBS="-L$FFMPEG_PREFIX/lib $LIBS"
+			CFLAGS="-I$FFMPEG_PREFIX/include $CFLAGS"
+		fi
+
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for avdevice_version in -lavdevice" >&5
 $as_echo_n "checking for avdevice_version in -lavdevice... " >&6; }
 if test "${ac_cv_lib_avdevice_avdevice_version+set}" = set; then :
@@ -6185,6 +6196,17 @@ fi
 fi
 
 
+
+# Check whether --with-ffmpeg was given.
+if test "${with_ffmpeg+set}" = set; then :
+  withval=$with_ffmpeg;
+else
+  with_ffmpeg=no
+
+fi
+
+
+
 # Check whether --enable-v4l2 was given.
 if test "${enable_v4l2+set}" = set; then :
   enableval=$enable_v4l2;

aconfigure.ac

@@ -784,6 +784,15 @@ AC_ARG_ENABLE(ffmpeg,
 		AC_SUBST(ac_ffmpeg_cflags)
 		AC_SUBST(ac_ffmpeg_ldflags)
 
+		FFMPEG_PREFIX=""
+    		if test "x$with_ffmpeg" != "xno" -a "x$with_ffmpeg" != "x"; then
+			FFMPEG_PREFIX=$with_ffmpeg
+			AC_MSG_RESULT([Using ffmpeg prefix... $FFMPEG_PREFIX])
+			LIBS="-L$FFMPEG_PREFIX/lib $LIBS"
+			LDFLAGS="-L$FFMPEG_PREFIX/lib $LDFLAGS"
+			CFLAGS="-I$FFMPEG_PREFIX/include $CFLAGS"
+		fi
+
 		AC_CHECK_LIB(avdevice,
 			     avdevice_version,
 			     [ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_HAS_LIBAVDEVICE=1"
@@ -824,6 +833,14 @@ AC_ARG_ENABLE(ffmpeg,
 	      ]
 	      )
 
+AC_ARG_WITH(ffmpeg,
+    AC_HELP_STRING([--with-ffmpeg=DIR],
+		   [Specify alternate FFMPEG prefix]),
+    [],
+    [with_ffmpeg=no]
+    )
+
+
 dnl # Video for Linux 2
 AC_ARG_ENABLE(v4l2,
 	      AC_HELP_STRING([--disable-v4l2],