Phase 7 step 1

CMakeLists.txt

@@ -165,6 +165,8 @@ set(APP_SOURCES
 	"${APP_DIR}/videoio/VideoIOFormat.h"
 	"${APP_DIR}/videoio/VideoBackend.cpp"
 	"${APP_DIR}/videoio/VideoBackend.h"
+	"${APP_DIR}/videoio/VideoBackendLifecycle.cpp"
+	"${APP_DIR}/videoio/VideoBackendLifecycle.h"
 	"${APP_DIR}/videoio/VideoIOTypes.h"
 	"${APP_DIR}/videoio/VideoPlayoutScheduler.cpp"
 	"${APP_DIR}/videoio/VideoPlayoutScheduler.h"
@@ -538,6 +540,22 @@ endif()
 
 add_test(NAME VideoPlayoutSchedulerTests COMMAND VideoPlayoutSchedulerTests)
 
+add_executable(VideoBackendLifecycleTests
+	"${APP_DIR}/videoio/VideoBackendLifecycle.cpp"
+	"${CMAKE_CURRENT_SOURCE_DIR}/tests/VideoBackendLifecycleTests.cpp"
+)
+
+target_include_directories(VideoBackendLifecycleTests PRIVATE
+	"${APP_DIR}"
+	"${APP_DIR}/videoio"
+)
+
+if(MSVC)
+	target_compile_options(VideoBackendLifecycleTests PRIVATE /W3)
+endif()
+
+add_test(NAME VideoBackendLifecycleTests COMMAND VideoBackendLifecycleTests)
+
 add_executable(VideoIODeviceFakeTests
 	"${APP_DIR}/videoio/VideoIOFormat.cpp"
 	"${CMAKE_CURRENT_SOURCE_DIR}/tests/VideoIODeviceFakeTests.cpp"