AMR-NB audio support patch by (<joca at rixmail dot se>)

Originally committed as revision 1876 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -43,6 +43,12 @@ EXTRALIBS+=-lmp3lame
 endif
 endif
 
+ifeq ($(AMR_NB),yes)
+EXTRALIBS+= libavcodec/amr/spc.a libavcodec/amr/fipop.a
+AMRLIBS=amrlibs
+CLEANAMR=cleanamr
+endif
+
 ifeq ($(CONFIG_VORBIS),yes)
 EXTRALIBS+=-logg -lvorbis -lvorbisenc
 endif
@@ -73,10 +79,14 @@ FFLIBS = -L./libavformat -lavformat -L./libavcodec -lavcodec
 
 all: lib $(PROG) $(VHOOK)
 
-lib:
+lib: $(AMRLIBS)
 	$(MAKE) -C libavcodec all
 	$(MAKE) -C libavformat all
 
+#make sure you have added -DMMS_IO to CFLAGS in libavcodec/amr/makefile!!
+amrlibs:
+	$(MAKE) -C libavcodec/amr spclib fipoplib
+
 ffmpeg_g$(EXE): ffmpeg.o .libs
 	$(CC) $(LDFLAGS) -o $@ ffmpeg.o $(FFLIBS) $(EXTRALIBS)
 
@@ -128,7 +138,7 @@ endif
 	@test -f .libs || touch .libs
 	@for i in $(DEP_LIBS) ; do if $(TEST) $$i -nt .libs ; then touch .libs; fi ; done
 
-clean: $(CLEANVHOOK)
+clean: $(CLEANVHOOK) $(CLEANAMR)
 	$(MAKE) -C libavcodec clean
 	$(MAKE) -C libavformat clean
 	$(MAKE) -C tests clean
@@ -141,6 +151,9 @@ distclean: clean
 	$(MAKE) -C libavcodec distclean
 	rm -f config.mak config.h
 
+cleanamr:
+	$(MAKE) -C libavcodec/amr clean
+
 TAGS:
 	etags *.[ch] libavformat/*.[ch] libavcodec/*.[ch]