ci: change build process

Dockerfile

@@ -3,14 +3,16 @@ FROM ubuntu:latest AS build
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt update && apt install build-essential git libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev cmake make wget xz-utils git build-essential libssl-dev openssl -y
 
-RUN git clone https://github.com/irlserver/srt.git 
-RUN cd srt
-
-RUN mkdir /out
-RUN cmake -DCMAKE_INSTALL_PREFIX=/usr ./srt
-RUN make -j
-RUN make DESTDIR=/out install
-
+# belabox patched srt
+#
+RUN mkdir -p /build; \
+	git clone https://github.com/IRLServer/srt.git /build/srt; \
+	cd /build/srt; \
+	git checkout belabox; \
+	cmake -DCMAKE_INSTALL_PREFIX=/usr /build/srt; \
+	./configure; \
+	make -j${nproc}; \
+	make install;
 
 WORKDIR /belacoder
 COPY . .