Buildscripts/cmake for GitHub actions

.github/workflows/cmake-linux.yml

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+name: CMake CI on Ubuntu
+
+on:
+  push:
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    name: ${{ matrix.os }}-${{ matrix.c_compiler }}-${{ matrix.build_type }}
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 5
+
+    strategy:
+      # Set fail-fast to false to ensure that feedback is delivered for all matrix combinations. Consider changing this to true when your workflow is stable.
+      fail-fast: false
+
+      matrix:
+        os: [ubuntu-latest]
+        build_type: [Debug, Release]
+        c_compiler: [gcc, clang]
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Configure CMake
+      run: |
+        cmake -S . -B build -DCMAKE_C_COMPILER=${{ 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

.github/workflows/cmake-macos.yml

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+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

.github/workflows/cmake-windows.yml

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+name: CMake CI on Windows
+
+on:
+  push:
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    name: ${{ matrix.os }}-${{ matrix.c_compiler }}-${{ matrix.build_type }}
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 5
+
+    strategy:
+      # Set fail-fast to false to ensure that feedback is delivered for all matrix combinations. Consider changing this to true when your workflow is stable.
+      fail-fast: false
+
+      matrix:
+        os: [windows-latest]
+        build_type: [Debug, Release]
+        c_compiler: [cl]
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Configure CMake
+      run: |
+        cmake -S . -B build -DCMAKE_C_COMPILER=${{ matrix.c_compiler }}
+
+    - name: Build CMake
+      run: |
+        cmake --build build --config ${{ matrix.build_type }}
+
+    - name: Run CMake tests
+      run: |
+        ctest -C ${{ matrix.build_type }} --output-on-failure -V
+
+    - name: Run Unit tests
+      working-directory: build/${{ matrix.build_type }}
+      run: |
+        $result = 0
+        ./h264_analyze ../../samples/JM_cqm_cabac.264 > tmp1.out
+        git diff --exit-code --no-index ../../samples/JM_cqm_cabac.out tmp1.out
+        if ($LASTEXITCODE -ne 0){ $result = $LASTEXITCODE }
+        ./h264_analyze ../../samples/x264_test.264 > tmp2.out
+        git diff --exit-code --no-index ../../samples/x264_test.out tmp2.out
+        if ($LASTEXITCODE -ne 0){ $result = $LASTEXITCODE }
+        ./h264_analyze ../../samples/riverbed-II-360p-48961.264 > tmp3.out
+        git diff --exit-code --no-index ../../samples/riverbed-II-360p-48961.out tmp3.out
+        if ($LASTEXITCODE -ne 0){ $result = $LASTEXITCODE }
+        if ($result -ne 0){ throw $result }

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.23)
+
+SET(CMAKE_C_STANDARD 99)
+
+project(h264bitstream
+	VERSION 0.2.0
+	DESCRIPTION "A complete set of functions to read and write H.264 video bitstreams, in particular to examine or modify headers."
+	HOMEPAGE_URL https://github.com/aizvorski/h264bitstream
+	LANGUAGES C
+)
+
+include(GNUInstallDirs)
+
+# Adding interface target for compiler flags
+add_library(compile_options INTERFACE)
+target_compile_options(compile_options INTERFACE -Wall -pedantic $<IF:$<CONFIG:Debug>,-O0,-O2>)
+if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
+	target_compile_options(compile_options INTERFACE -Wextra -Wshadow -Wwrite-strings -Wno-unused -g)
+endif()
+if(APPLE)
+	# Compiler flags for creating universal (fat) binaries.
+	#target_compile_options(compile_options INTERFACE -force_cpusubtype_ALL -mmacosx-version-min=10.4 -arch i386 -arch ppc -arch x86_64)
+endif()
+
+# Library sources
+set(SOURCES
+	h264_nal.c
+	h264_sei.c
+	h264_stream.c
+)
+
+set(HEADERS
+	bs.h
+	h264_avcc.h
+	h264_sei.h
+	h264_stream.h
+)
+
+# These do not participate in build -- for now...
+set(ADDITIONALS
+	h264_avcc.c
+	h264_slice_data.c
+	h264_slice_data.h
+)
+
+add_library(h264bitstream ${SOURCES} ${HEADERS})
+target_sources(h264bitstream
+	PUBLIC FILE_SET headers TYPE HEADERS FILES ${HEADERS}
+)
+target_link_libraries(h264bitstream PRIVATE compile_options)
+
+add_executable(h264_analyze h264_analyze.c)
+target_link_libraries(h264_analyze PRIVATE compile_options h264bitstream)
+
+add_executable(svc_split svc_split.c)
+target_link_libraries(svc_split PRIVATE compile_options h264bitstream)
+
+install(TARGETS h264bitstream h264_analyze svc_split
+	FILE_SET headers
+)
+
+if(UNIX)
+	# Support for pkg-config in consuming projects
+	set(prefix "${CMAKE_INSTALL_PREFIX}")
+	set(exec_prefix "${CMAKE_INSTALL_PREFIX}")
+	set(libdir "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
+	set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
+
+	configure_file("${CMAKE_CURRENT_SOURCE_DIR}/libh264bitstream.pc.in"
+		"${CMAKE_CURRENT_BINARY_DIR}/libh264bitstream.pc"
+	)
+
+	install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libh264bitstream.pc"
+		DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig"
+	)
+endif(UNIX)

libh264bitstream.pc.in

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+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: @PROJECT_NAME@
+Description: @PROJECT_DESCRIPTION@
+Version: @PROJECT_VERSION@
+Libs: -L${libdir} -lh264bitstream
+Cflags: -I${includedir}
+Requires: