SHELL:=/bin/bash

ffmpeg:
	# git clone git://git.videolan.org/x264.git
	#git clone https://github.com/rayburgemeestre/x264

	git clone https://code.videolan.org/videolan/x264
	git clone git://source.ffmpeg.org/ffmpeg.git

	bash ../ubuntu1804.sh make ffmpeg_impl

	make package

ffmpeg_impl:
	apt-get update
	sudo apt-get install -y yasm
	sudo apt-get install -y nasm # apparently x264 switched to this

	mkdir x264_out
	mkdir ffmpeg_out

	pushd x264 && \
	git checkout 2451a7282463f68e532f2eee090a70ab139bb3e7
	# ^ parent of 71ed44c7312438fac7c5c5301e45522e57127db4, which is where they dropped support for:
	# libavcodec/libx264.c:282:9: error: 'x264_bit_depth' undeclared (first use in this function); did you mean 'x264_picture_t'?
	#      if (x264_bit_depth > 8)
	#                   ^~~~~~~~~~~~~~
	pushd x264 && \
	./configure --cxx=$$(which c++) --enable-static --enable-shared --prefix=$$(realpath $$PWD/../x264_out) && \
	make -j $$(nproc) && \
	make install

	pushd x264 && \
	./configure --cxx=$$(which c++) --enable-static --enable-shared && \
	make -j $$(nproc) && \
	make install

	pushd ffmpeg && git checkout n3.1
	#git checkout 71052d85c16bd65fa1e3e01d9040f9a3925efd7a # or my muxing code won't work, they've modified the example since fba1592f35501bff0f28d7885f4128dfc7b82777
	pushd ffmpeg && \
	./configure --cxx=$$(which c++) --enable-static --enable-shared --enable-libx264 --enable-gpl --prefix=$$(realpath $$PWD/../ffmpeg_out) && \
	make -j $$(nproc) && \
	make install

package:
	rm -rf out

	mkdir -p out/opt/cppse/build/x264
	mkdir -p out/opt/cppse/build/ffmpeg

	cp -prv ./x264_out/* out/opt/cppse/build/x264/
	cp -prv ./ffmpeg_out/* out/opt/cppse/build/ffmpeg/

	rm -rf ffmpeg_*_amd64.deb
	docker run -v "$$(pwd):/src/" rayburgemeestre/fpm-ubuntu:18.04 fpm -v 1.1 -s dir -t deb -n ffmpeg --license MPL2 --maintainer "Ray Burgemeestre <ray@cppse.nl>" --description "ffmpeg - build dependency" --url "https://gitea.cppse.nl/rayburgemeestre/build-config/src/branch/master/ffmpeg" --deb-generate-changes -C /src/out

clean:
	rm -rf x264
	rm -rf ffmpeg
	rm -rf out
	rm -rf x264_out
	rm -rf ffmpeg_out

shell:
	FLAGS="-i --privileged" bash ../ubuntu1804.sh /bin/bash