Add CMake information to README.md #3

	name: CMake CI on MacOS

	on:
	push:
	pull_request:
	branches: [ "master" ]

	jobs:
	build:
	name: ${{ matrix.os }}-${{ matrix.c_compiler }}-${{ matrix.build_type }}
	runs-on: ${{ matrix.os }}
	timeout-minutes: 5

	strategy:
	# Set fail-fast to false to ensure that feedback is delivered for all matrix combinations. Consider changing this to true when your workflow is stable.
	fail-fast: false

	matrix:
	os: [macos-latest]
	build_type: [Debug, Release]
	c_compiler: [clang] # Both clang and gcc on macos-runner are actually AppleClang 14.0.0 from Xcode

	steps:
	- uses: actions/checkout@v3

	- name: Configure CMake
	run: \|
	cmake -S . -B build -DCMAKE_C_COMPILER=${{ matrix.c_compiler }} -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}

	- name: Build CMake
	run: \|
	cmake --build build

	- name: Run CMake tests
	run: \|
	ctest -C ${{ matrix.build_type }} --output-on-failure -V

	- name: Run Unit tests
	working-directory: build
	run: \|
	./h264_analyze ../samples/JM_cqm_cabac.264 > tmp1.out
	diff -u ../samples/JM_cqm_cabac.out tmp1.out
	./h264_analyze ../samples/x264_test.264 > tmp2.out
	diff -u ../samples/x264_test.out tmp2.out
	./h264_analyze ../samples/riverbed-II-360p-48961.264 > tmp3.out
	diff -u ../samples/riverbed-II-360p-48961.out tmp3.out

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