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opencv/cmake/OpenCVFindLibsVideo.cmake
Pavel Rojtberg 0d65397ae7 videoio: remove cap_libv4l in favour of cap_v4l 
cap_libv4l depends on an external library (libv4l) yet is still larger
(1966 loc vs 1822 loc).
It was initially introduced copy pasting cap_v4l in order to offload
various color conversions to libv4l.
However nowadays we handle most of the needed color conversions inside
OpenCV. Our own implementation is better tested and (probably) also
better performing. (as it can optionally leverage IPP/ OpenCL)

Currently cap_v4l is better maintained and generally the code is in
better shape. There is however an API
difference in getting unconverted frames:
* on cap_libv4l one need to set `CV_CAP_MODE_GRAY=1` or
`CV_CAP_MODE_YUYV=1`
* on cap_v4l one needs to set `CV_CAP_PROP_CONVERT_RGB=0`

the latter is more flexible though as it also allows accessing undecoded
JPEG images.

fixes #4563
2018-11-12 13:38:59 +03:00

309 lines
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CMake
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# ----------------------------------------------------------------------------
# Detect 3rd-party video IO libraries
# ----------------------------------------------------------------------------
# --- GStreamer ---
ocv_clear_vars(HAVE_GSTREAMER)
# try to find gstreamer 1.x first if 0.10 was not requested
if(WITH_GSTREAMER AND NOT WITH_GSTREAMER_0_10)
if(WIN32)
SET(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_LIST_DIR}")
FIND_PACKAGE(GstreamerWindows)
IF(GSTREAMER_gstbase_LIBRARY AND GSTREAMER_gstvideo_LIBRARY AND GSTREAMER_gstapp_LIBRARY AND GSTREAMER_gstpbutils_LIBRARY AND GSTREAMER_gstriff_LIBRARY)
set(HAVE_GSTREAMER TRUE)
set(GSTREAMER_BASE_VERSION 1.0)
set(GSTREAMER_VIDEO_VERSION 1.0)
set(GSTREAMER_APP_VERSION 1.0)
set(GSTREAMER_RIFF_VERSION 1.0)
set(GSTREAMER_PBUTILS_VERSION 1.0)
ENDIF(GSTREAMER_gstbase_LIBRARY AND GSTREAMER_gstvideo_LIBRARY AND GSTREAMER_gstapp_LIBRARY AND GSTREAMER_gstpbutils_LIBRARY AND GSTREAMER_gstriff_LIBRARY)
else(WIN32)
CHECK_MODULE(gstreamer-base-1.0 HAVE_GSTREAMER_BASE VIDEOIO)
CHECK_MODULE(gstreamer-video-1.0 HAVE_GSTREAMER_VIDEO VIDEOIO)
CHECK_MODULE(gstreamer-app-1.0 HAVE_GSTREAMER_APP VIDEOIO)
CHECK_MODULE(gstreamer-riff-1.0 HAVE_GSTREAMER_RIFF VIDEOIO)
CHECK_MODULE(gstreamer-pbutils-1.0 HAVE_GSTREAMER_PBUTILS VIDEOIO)
if(HAVE_GSTREAMER_BASE AND HAVE_GSTREAMER_VIDEO AND HAVE_GSTREAMER_APP AND HAVE_GSTREAMER_RIFF AND HAVE_GSTREAMER_PBUTILS)
set(HAVE_GSTREAMER TRUE)
set(GSTREAMER_BASE_VERSION ${ALIASOF_gstreamer-base-1.0_VERSION})
set(GSTREAMER_VIDEO_VERSION ${ALIASOF_gstreamer-video-1.0_VERSION})
set(GSTREAMER_APP_VERSION ${ALIASOF_gstreamer-app-1.0_VERSION})
set(GSTREAMER_RIFF_VERSION ${ALIASOF_gstreamer-riff-1.0_VERSION})
set(GSTREAMER_PBUTILS_VERSION ${ALIASOF_gstreamer-pbutils-1.0_VERSION})
endif()
endif(WIN32)
endif(WITH_GSTREAMER AND NOT WITH_GSTREAMER_0_10)
# if gstreamer 1.x was not found, or we specified we wanted 0.10, try to find it
if(WITH_GSTREAMER AND NOT HAVE_GSTREAMER OR WITH_GSTREAMER_0_10)
CHECK_MODULE(gstreamer-base-0.10 HAVE_GSTREAMER_BASE VIDEOIO)
CHECK_MODULE(gstreamer-video-0.10 HAVE_GSTREAMER_VIDEO VIDEOIO)
CHECK_MODULE(gstreamer-app-0.10 HAVE_GSTREAMER_APP VIDEOIO)
CHECK_MODULE(gstreamer-riff-0.10 HAVE_GSTREAMER_RIFF VIDEOIO)
CHECK_MODULE(gstreamer-pbutils-0.10 HAVE_GSTREAMER_PBUTILS VIDEOIO)
if(HAVE_GSTREAMER_BASE AND HAVE_GSTREAMER_VIDEO AND HAVE_GSTREAMER_APP AND HAVE_GSTREAMER_RIFF AND HAVE_GSTREAMER_PBUTILS)
set(HAVE_GSTREAMER TRUE)
set(GSTREAMER_BASE_VERSION ${ALIASOF_gstreamer-base-0.10_VERSION})
set(GSTREAMER_VIDEO_VERSION ${ALIASOF_gstreamer-video-0.10_VERSION})
set(GSTREAMER_APP_VERSION ${ALIASOF_gstreamer-app-0.10_VERSION})
set(GSTREAMER_RIFF_VERSION ${ALIASOF_gstreamer-riff-0.10_VERSION})
set(GSTREAMER_PBUTILS_VERSION ${ALIASOF_gstreamer-pbutils-0.10_VERSION})
endif()
endif(WITH_GSTREAMER AND NOT HAVE_GSTREAMER OR WITH_GSTREAMER_0_10)
# --- PvApi ---
ocv_clear_vars(HAVE_PVAPI)
if(WITH_PVAPI)
find_path(PVAPI_INCLUDE_PATH "PvApi.h"
PATHS /usr/local /opt /usr ENV ProgramFiles ENV ProgramW6432
PATH_SUFFIXES include "Allied Vision Technologies/GigESDK/inc-pc" "AVT GigE SDK/inc-pc" "GigESDK/inc-pc"
DOC "The path to PvAPI header")
if(PVAPI_INCLUDE_PATH)
if(X86 AND NOT WIN32)
set(PVAPI_SDK_SUBDIR x86)
elseif(X86_64)
set(PVAPI_SDK_SUBDIR x64)
elseif(ARM)
set(PVAPI_SDK_SUBDIR arm)
endif()
get_filename_component(_PVAPI_LIBRARY_HINT "${PVAPI_INCLUDE_PATH}/../lib-pc" ABSOLUTE)
find_library(PVAPI_LIBRARY NAMES "PvAPI" PATHS "${_PVAPI_LIBRARY_HINT}")
if(PVAPI_LIBRARY)
if(WIN32)
if(MINGW)
set(PVAPI_DEFINITIONS "-DPVDECL=__stdcall")
endif(MINGW)
endif()
set(HAVE_PVAPI TRUE)
endif()
endif(PVAPI_INCLUDE_PATH)
endif(WITH_PVAPI)
# --- GigEVisionSDK ---
ocv_clear_vars(HAVE_GIGE_API)
if(WITH_GIGEAPI)
find_path(GIGEAPI_INCLUDE_PATH "GigEVisionSDK.h"
PATHS /usr/local /var /opt /usr ENV ProgramFiles ENV ProgramW6432
PATH_SUFFIXES include "Smartek Vision Technologies/GigEVisionSDK/gige_cpp" "GigEVisionSDK/gige_cpp" "GigEVisionSDK/gige_c"
DOC "The path to Smartek GigEVisionSDK header")
FIND_LIBRARY(GIGEAPI_LIBRARIES NAMES GigEVisionSDK)
if(GIGEAPI_LIBRARIES AND GIGEAPI_INCLUDE_PATH)
set(HAVE_GIGE_API TRUE)
endif()
endif(WITH_GIGEAPI)
# --- Aravis SDK ---
ocv_clear_vars(HAVE_ARAVIS_API)
if(WITH_ARAVIS)
check_module(glib-2.0 HAVE_ARAVIS_GLIB VIDEOIO)
if(HAVE_ARAVIS_GLIB)
find_path(ARAVIS_INCLUDE_PATH "arv.h"
PATHS /usr/local /var /opt /usr ENV ProgramFiles ENV ProgramW6432
PATH_SUFFIXES include "aravis-0.6" "aravis-0.4"
DOC "The path to Aravis SDK headers")
find_library(ARAVIS_LIBRARIES NAMES "aravis-0.6" "aravis-0.4" )
if(ARAVIS_LIBRARIES AND ARAVIS_INCLUDE_PATH)
set(HAVE_ARAVIS_API TRUE)
endif()
else()
message("Can not build Aravis support without glib2")
endif()
endif(WITH_ARAVIS)
# --- Dc1394 ---
ocv_clear_vars(HAVE_DC1394 HAVE_DC1394_2)
if(WITH_1394)
if(WIN32 AND MINGW)
find_path(CMU1394_INCLUDE_PATH "/1394common.h"
PATH_SUFFIXES include
DOC "The path to cmu1394 headers")
find_path(DC1394_2_INCLUDE_PATH "/dc1394/dc1394.h"
PATH_SUFFIXES include
DOC "The path to DC1394 2.x headers")
if(CMU1394_INCLUDE_PATH AND DC1394_2_INCLUDE_PATH)
set(CMU1394_LIB_DIR "${CMU1394_INCLUDE_PATH}/../lib" CACHE PATH "Full path of CMU1394 library directory")
set(DC1394_2_LIB_DIR "${DC1394_2_INCLUDE_PATH}/../lib" CACHE PATH "Full path of DC1394 2.x library directory")
if(EXISTS "${CMU1394_LIB_DIR}/lib1394camera.a" AND EXISTS "${DC1394_2_LIB_DIR}/libdc1394.a")
set(HAVE_DC1394_2 TRUE)
endif()
endif()
if(HAVE_DC1394_2)
ocv_parse_pkg("libdc1394-2" "${DC1394_2_LIB_DIR}/pkgconfig" "")
ocv_include_directories(${DC1394_2_INCLUDE_PATH})
set(VIDEOIO_LIBRARIES ${VIDEOIO_LIBRARIES}
"${DC1394_2_LIB_DIR}/libdc1394.a"
"${CMU1394_LIB_DIR}/lib1394camera.a")
endif(HAVE_DC1394_2)
else(WIN32 AND MINGW)
CHECK_MODULE(libdc1394-2 HAVE_DC1394_2 VIDEOIO)
if(NOT HAVE_DC1394_2)
CHECK_MODULE(libdc1394 HAVE_DC1394 VIDEOIO)
endif()
endif(WIN32 AND MINGW)
endif(WITH_1394)
# --- xine ---
ocv_clear_vars(HAVE_XINE)
if(WITH_XINE)
CHECK_MODULE(libxine HAVE_XINE VIDEOIO)
endif(WITH_XINE)
# --- V4L ---
ocv_clear_vars(HAVE_CAMV4L2 HAVE_VIDEOIO)
if(WITH_V4L)
CHECK_INCLUDE_FILE(linux/videodev2.h HAVE_CAMV4L2)
CHECK_INCLUDE_FILE(sys/videoio.h HAVE_VIDEOIO)
endif(WITH_V4L)
# --- OpenNI ---
ocv_clear_vars(HAVE_OPENNI HAVE_OPENNI_PRIME_SENSOR_MODULE)
if(WITH_OPENNI)
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindOpenNI.cmake")
endif(WITH_OPENNI)
ocv_clear_vars(HAVE_OPENNI2)
if(WITH_OPENNI2)
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindOpenNI2.cmake")
endif(WITH_OPENNI2)
# --- XIMEA ---
ocv_clear_vars(HAVE_XIMEA)
if(WITH_XIMEA)
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindXimea.cmake")
if(XIMEA_FOUND)
set(HAVE_XIMEA TRUE)
endif()
endif(WITH_XIMEA)
# --- FFMPEG ---
ocv_clear_vars(HAVE_FFMPEG)
if(WITH_FFMPEG) # try FFmpeg autodetection
if(OPENCV_FFMPEG_USE_FIND_PACKAGE)
if(OPENCV_FFMPEG_USE_FIND_PACKAGE STREQUAL "1" OR OPENCV_FFMPEG_USE_FIND_PACKAGE STREQUAL "ON")
set(OPENCV_FFMPEG_USE_FIND_PACKAGE "FFMPEG")
endif()
find_package(${OPENCV_FFMPEG_USE_FIND_PACKAGE}) # Required components: AVCODEC AVFORMAT AVUTIL SWSCALE
if(FFMPEG_FOUND OR FFmpeg_FOUND)
set(HAVE_FFMPEG TRUE)
else()
message(STATUS "Can't find FFmpeg via find_package(${OPENCV_FFMPEG_USE_FIND_PACKAGE})")
endif()
elseif(WIN32 AND NOT ARM AND NOT OPENCV_FFMPEG_SKIP_DOWNLOAD)
include("${OpenCV_SOURCE_DIR}/3rdparty/ffmpeg/ffmpeg.cmake")
download_win_ffmpeg(FFMPEG_CMAKE_SCRIPT)
if(FFMPEG_CMAKE_SCRIPT)
set(HAVE_FFMPEG TRUE)
set(HAVE_FFMPEG_WRAPPER 1)
include("${FFMPEG_CMAKE_SCRIPT}")
endif()
elseif(PKG_CONFIG_FOUND)
ocv_check_modules(FFMPEG libavcodec libavformat libavutil libswscale)
ocv_check_modules(FFMPEG_libavresample libavresample)
if(FFMPEG_libavresample_FOUND)
ocv_append_build_options(FFMPEG FFMPEG_libavresample)
endif()
else()
message(STATUS "Can't find ffmpeg - 'pkg-config' utility is missing")
endif()
endif()
if(HAVE_FFMPEG
AND NOT HAVE_FFMPEG_WRAPPER
)
try_compile(__VALID_FFMPEG
"${OpenCV_BINARY_DIR}"
"${OpenCV_SOURCE_DIR}/cmake/checks/ffmpeg_test.cpp"
CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${FFMPEG_INCLUDE_DIRS}"
"-DLINK_DIRECTORIES:STRING=${FFMPEG_LIBRARY_DIRS}"
"-DLINK_LIBRARIES:STRING=${FFMPEG_LIBRARIES}"
OUTPUT_VARIABLE TRY_OUT
)
if(NOT __VALID_FFMPEG)
#message(FATAL_ERROR "FFMPEG: test check build log:\n${TRY_OUT}")
message(STATUS "WARNING: Can't build ffmpeg test code")
set(HAVE_FFMPEG FALSE)
else()
ocv_append_build_options(VIDEOIO FFMPEG)
endif()
endif()
# --- VideoInput/DirectShow ---
if(WITH_DSHOW)
if(MSVC_VERSION GREATER 1499)
set(HAVE_DSHOW 1)
elseif(NOT HAVE_DSHOW)
check_include_file(DShow.h HAVE_DSHOW)
endif()
endif(WITH_DSHOW)
# --- VideoInput/Microsoft Media Foundation ---
ocv_clear_vars(HAVE_MSMF)
if(WITH_MSMF)
check_include_file(Mfapi.h HAVE_MSMF)
check_include_file(D3D11.h D3D11_found)
check_include_file(D3d11_4.h D3D11_4_found)
if(D3D11_found AND D3D11_4_found)
set(HAVE_DXVA YES)
else()
set(HAVE_DXVA NO)
endif()
endif(WITH_MSMF)
# --- Extra HighGUI and VideoIO libs on Windows ---
if(WIN32)
list(APPEND HIGHGUI_LIBRARIES comctl32 gdi32 ole32 setupapi ws2_32)
if(MINGW64)
list(APPEND VIDEOIO_LIBRARIES avifil32 avicap32 winmm msvfw32)
elseif(MINGW)
list(APPEND VIDEOIO_LIBRARIES winmm)
endif()
endif(WIN32)
if(APPLE)
if(WITH_AVFOUNDATION)
set(HAVE_AVFOUNDATION YES)
endif()
endif(APPLE)
# --- Intel librealsense ---
if(WITH_LIBREALSENSE)
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindLibRealsense.cmake")
endif(WITH_LIBREALSENSE)
# --- Intel Perceptual Computing SDK ---
if(WITH_INTELPERC)
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindIntelPerCSDK.cmake")
endif(WITH_INTELPERC)
if(WITH_MFX)
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVDetectMediaSDK.cmake")
endif()
# --- gPhoto2 ---
ocv_clear_vars(HAVE_GPHOTO2)
if(WITH_GPHOTO2)
CHECK_MODULE(libgphoto2 HAVE_GPHOTO2 VIDEOIO)
endif(WITH_GPHOTO2)
# --- VA & VA_INTEL ---
if(WITH_VA_INTEL)
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindVA_INTEL.cmake")
if(VA_INTEL_IOCL_INCLUDE_DIR)
ocv_include_directories(${VA_INTEL_IOCL_INCLUDE_DIR})
endif()
set(WITH_VA YES)
endif(WITH_VA_INTEL)
if(WITH_VA)
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindVA.cmake")
if(VA_INCLUDE_DIR)
ocv_include_directories(${VA_INCLUDE_DIR})
endif()
endif(WITH_VA)
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