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105 lines
4.0 KiB
CMake
105 lines
4.0 KiB
CMake
# --- FFMPEG ---
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if(NOT HAVE_FFMPEG AND OPENCV_FFMPEG_USE_FIND_PACKAGE)
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if(OPENCV_FFMPEG_USE_FIND_PACKAGE STREQUAL "1" OR OPENCV_FFMPEG_USE_FIND_PACKAGE STREQUAL "ON")
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set(OPENCV_FFMPEG_USE_FIND_PACKAGE "FFMPEG")
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endif()
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find_package(${OPENCV_FFMPEG_USE_FIND_PACKAGE}) # Required components: AVCODEC AVFORMAT AVUTIL SWSCALE
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if(FFMPEG_FOUND OR FFmpeg_FOUND)
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set(HAVE_FFMPEG TRUE)
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endif()
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endif()
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if(NOT HAVE_FFMPEG AND WIN32 AND NOT ARM AND NOT OPENCV_FFMPEG_SKIP_DOWNLOAD)
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include("${OpenCV_SOURCE_DIR}/3rdparty/ffmpeg/ffmpeg.cmake")
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download_win_ffmpeg(FFMPEG_CMAKE_SCRIPT)
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if(FFMPEG_CMAKE_SCRIPT)
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include("${FFMPEG_CMAKE_SCRIPT}")
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set(FFMPEG_libavcodec_VERSION ${FFMPEG_libavcodec_VERSION} PARENT_SCOPE) # info
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set(FFMPEG_libavformat_VERSION ${FFMPEG_libavformat_VERSION} PARENT_SCOPE) # info
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set(FFMPEG_libavutil_VERSION ${FFMPEG_libavutil_VERSION} PARENT_SCOPE) # info
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set(FFMPEG_libswscale_VERSION ${FFMPEG_libswscale_VERSION} PARENT_SCOPE) # info
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set(FFMPEG_libavresample_VERSION ${FFMPEG_libavresample_VERSION} PARENT_SCOPE) # info
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set(HAVE_FFMPEG TRUE)
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set(HAVE_FFMPEG_WRAPPER TRUE)
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endif()
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endif()
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set(_required_ffmpeg_libraries libavcodec libavformat libavutil libswscale)
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set(_used_ffmpeg_libraries ${_required_ffmpeg_libraries})
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if(NOT HAVE_FFMPEG AND PKG_CONFIG_FOUND)
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ocv_check_modules(FFMPEG libavcodec libavformat libavutil libswscale)
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if(FFMPEG_FOUND)
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ocv_check_modules(FFMPEG_libavresample libavresample) # optional
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if(FFMPEG_libavresample_FOUND)
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list(APPEND FFMPEG_LIBRARIES ${FFMPEG_libavresample_LIBRARIES})
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list(APPEND _used_ffmpeg_libraries libavresample)
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endif()
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set(HAVE_FFMPEG TRUE)
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else()
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set(_missing_ffmpeg_libraries "")
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foreach (ffmpeg_lib ${_required_ffmpeg_libraries})
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if (NOT FFMPEG_${ffmpeg_lib}_FOUND)
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list(APPEND _missing_ffmpeg_libraries ${ffmpeg_lib})
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endif()
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endforeach ()
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message(STATUS "FFMPEG is disabled. Required libraries: ${_required_ffmpeg_libraries}."
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" Missing libraries: ${_missing_ffmpeg_libraries}")
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unset(_missing_ffmpeg_libraries)
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endif()
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endif()
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#=================================
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# Versions check.
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if(HAVE_FFMPEG AND NOT HAVE_FFMPEG_WRAPPER)
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set(_min_libavcodec_version 54.35.0)
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set(_min_libavformat_version 54.20.4)
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set(_min_libavutil_version 52.3.0)
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set(_min_libswscale_version 2.1.1)
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set(_min_libavresample_version 1.0.1)
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foreach(ffmpeg_lib ${_used_ffmpeg_libraries})
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if(FFMPEG_${ffmpeg_lib}_VERSION VERSION_LESS _min_${ffmpeg_lib}_version)
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message(STATUS "FFMPEG is disabled. Can't find suitable ${ffmpeg_lib} library"
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" (minimal ${_min_${ffmpeg_lib}_version}, found ${FFMPEG_${ffmpeg_lib}_VERSION}).")
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set(HAVE_FFMPEG FALSE)
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endif()
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endforeach()
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if(NOT HAVE_FFMPEG)
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message(STATUS "FFMPEG libraries version check failed "
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"(minimal libav release 9.20, minimal FFMPEG release 1.1.16).")
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endif()
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unset(_min_libavcodec_version)
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unset(_min_libavformat_version)
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unset(_min_libavutil_version)
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unset(_min_libswscale_version)
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unset(_min_libavresample_version)
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endif()
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#==================================
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if(HAVE_FFMPEG AND NOT HAVE_FFMPEG_WRAPPER AND NOT OPENCV_FFMPEG_SKIP_BUILD_CHECK)
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try_compile(__VALID_FFMPEG
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"${OpenCV_BINARY_DIR}"
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"${OpenCV_SOURCE_DIR}/cmake/checks/ffmpeg_test.cpp"
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CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${FFMPEG_INCLUDE_DIRS}"
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"-DLINK_LIBRARIES:STRING=${FFMPEG_LIBRARIES}"
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OUTPUT_VARIABLE TRY_OUT
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)
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if(NOT __VALID_FFMPEG)
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# message(FATAL_ERROR "FFMPEG: test check build log:\n${TRY_OUT}")
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message(STATUS "WARNING: Can't build ffmpeg test code")
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set(HAVE_FFMPEG FALSE)
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endif()
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endif()
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#==================================
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unset(_required_ffmpeg_libraries)
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unset(_used_ffmpeg_libraries)
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if(HAVE_FFMPEG_WRAPPER)
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ocv_add_external_target(ffmpeg "" "" "HAVE_FFMPEG_WRAPPER")
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elseif(HAVE_FFMPEG)
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ocv_add_external_target(ffmpeg "${FFMPEG_INCLUDE_DIRS}" "${FFMPEG_LIBRARIES}" "HAVE_FFMPEG")
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endif()
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set(HAVE_FFMPEG ${HAVE_FFMPEG} PARENT_SCOPE)
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