AudioFilter: add process test

GitLab: https://git.jami.net/savoirfairelinux/jami-daemon/-/issues/745

Change-Id: I4ec8adcc7cb1dbbc52b908fdddc7b380cded7350
diff --git a/contrib/mp3lame/rules.mak b/contrib/mp3lame/rules.mak
new file mode 100644
index 0000000..418e1cd
--- /dev/null
+++ b/contrib/mp3lame/rules.mak
@@ -0,0 +1,25 @@
+# lame
+LAME_HASH := f416c19b3140a8610507ebb60ac7cd06e94472b8
+LAME_GITURL := https://github.com/gypified/libmp3lame.git
+
+LAMECONFIG := --prefix="$(PREFIX)"
+
+$(TARBALLS)/mp3lame-$(LAME_HASH).tar.xz:
+	$(call download_git,$(LAME_GITURL),master,$(LAME_HASH))
+
+.sum-mp3lame: mp3lame-$(LAME_HASH).tar.xz
+	$(warning $@ not implemented)
+	touch $@
+
+mp3lame: mp3lame-$(LAME_HASH).tar.xz .sum-mp3lame
+	rm -Rf $@-$(LAME_HASH)
+	mkdir -p $@-$(LAME_HASH)
+	(cd $@-$(LAME_HASH) && tar x $(if ${BATCH_MODE},,-v) --strip-components=1 -f $<)
+	$(UPDATE_AUTOCONFIG)
+	$(MOVE)
+
+.mp3lame: mp3lame
+	cd $< && $(HOSTVARS) ./configure $(LAMECONFIG)
+	cd $< && $(MAKE)
+	cd $< && $(MAKE) install
+	touch $@