# - Try to find Gstreamer and its plugins # Once done, this will define # # GSTREAMER_1_0_FOUND - system has Gstreamer # GSTREAMER_1_0_INCLUDE_DIRS - the Gstreamer include directories # GSTREAMER_1_0_LIBRARIES - link these to use Gstreamer # # Additionally, gstreamer-base is always looked for and required, and # the following related variables are defined: # # GSTREAMER_1_0_BASE_INCLUDE_DIRS - gstreamer-base's include directory # GSTREAMER_1_0_BASE_LIBRARIES - link to these to use gstreamer-base # # Optionally, the COMPONENTS keyword can be passed to find_package() # and Gstreamer plugins can be looked for. Currently, the following # plugins can be searched, and they define the following variables if # found: # # gstreamer-app: GSTREAMER_1_0_APP_INCLUDE_DIRS and GSTREAMER_1_0_APP_LIBRARIES # gstreamer-audio: GSTREAMER_1_0_AUDIO_INCLUDE_DIRS and GSTREAMER_1_0_AUDIO_LIBRARIES # gstreamer-fft: GSTREAMER_1_0_FFT_INCLUDE_DIRS and GSTREAMER_1_0_FFT_LIBRARIES # gstreamer-pbutils: GSTREAMER_1_0_PBUTILS_INCLUDE_DIRS and GSTREAMER_1_0_PBUTILS_LIBRARIES # gstreamer-video: GSTREAMER_1_0_VIDEO_INCLUDE_DIRS and GSTREAMER_1_0_VIDEO_LIBRARIES # # Copyright (C) 2012 Raphael Kubo da Costa # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND ITS CONTRIBUTORS ``AS # IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR ITS # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. find_package(PkgConfig) # The minimum Gstreamer version we support. set(GSTREAMER_1_0_MINIMUM_VERSION 1.0.5) # Helper macro to find a Gstreamer plugin (or Gstreamer itself) # _component_prefix is prepended to the _INCLUDE_DIRS and _LIBRARIES variables (eg. "GSTREAMER_1_0_AUDIO") # _pkgconfig_name is the component's pkg-config name (eg. "gstreamer-1.0", or "gstreamer-video-1.0"). # _library is the component's library name (eg. "gstreamer-1.0" or "gstvideo-1.0") macro(FIND_GSTREAMER_COMPONENT _component_prefix _pkgconfig_name _library) # FIXME: The QUIET keyword can be used once we require CMake 2.8.2. string(REGEX MATCH "(.*)>=(.*)" _dummy "${_pkgconfig_name}") if ("${CMAKE_MATCH_2}" STREQUAL "") pkg_check_modules(PC_${_component_prefix} "${_pkgconfig_name} >= ${GStreamer_FIND_VERSION}") else () pkg_check_modules(PC_${_component_prefix} ${_pkgconfig_name}) endif () set(${_component_prefix}_INCLUDE_DIRS ${PC_${_component_prefix}_INCLUDE_DIRS}) find_library(${_component_prefix}_LIBRARIES NAMES ${_library} gstreamer_android HINTS ${PC_${_component_prefix}_LIBRARY_DIRS} ${PC_${_component_prefix}_LIBDIR} ${GSTREAMER_1_0_ROOT_DIR} ) endmacro() # ------------------------ # 1. Find Gstreamer itself # ------------------------ # 1.1. Find headers and libraries set(GLIB_ROOT_DIR ${GSTREAMER_1_0_ROOT_DIR}) find_package(Glib REQUIRED) FIND_GSTREAMER_COMPONENT(GSTREAMER_1_0 gstreamer-1.0 gstreamer-1.0) FIND_GSTREAMER_COMPONENT(GSTREAMER_1_0_BASE gstreamer-base-1.0 gstbase-1.0) # 1.2. Check Gstreamer version if (GSTREAMER_1_0_INCLUDE_DIRS) if (EXISTS "${GSTREAMER_1_0_INCLUDE_DIRS}/gst/gstversion.h") file(READ "${GSTREAMER_1_0_INCLUDE_DIRS}/gst/gstversion.h" GSTREAMER_VERSION_CONTENTS) string(REGEX MATCH "#define +GST_VERSION_MAJOR +\\(([0-9]+)\\)" _dummy "${GSTREAMER_VERSION_CONTENTS}") set(GSTREAMER_1_0_VERSION_MAJOR "${CMAKE_MATCH_1}") string(REGEX MATCH "#define +GST_VERSION_MINOR +\\(([0-9]+)\\)" _dummy "${GSTREAMER_1_0_VERSION_CONTENTS}") set(GSTREAMER_1_0_VERSION_MINOR "${CMAKE_MATCH_1}") string(REGEX MATCH "#define +GST_VERSION_MICRO +\\(([0-9]+)\\)" _dummy "${GSTREAMER_1_0_VERSION_CONTENTS}") set(GSTREAMER_1_0_VERSION_MICRO "${CMAKE_MATCH_1}") set(GSTREAMER_1_0_VERSION "${GSTREAMER_1_0_VERSION_MAJOR}.${GSTREAMER_1_0_VERSION_MINOR}.${GSTREAMER_1_0_VERSION_MICRO}") endif () endif () # FIXME: With CMake 2.8.3 we can just pass GSTREAMER_1_0_VERSION to FIND_PACKAGE_HANDLE_STANDARD_ARGS as VERSION_VAR # and remove the version check here (GSTREAMER_1_0_MINIMUM_VERSION would be passed to FIND_PACKAGE). set(VERSION_OK TRUE) if ("${GSTREAMER_1_0_VERSION}" VERSION_LESS "${GSTREAMER_1_0_MINIMUM_VERSION}") set(VERSION_OK FALSE) endif () # ------------------------- # 2. Find Gstreamer plugins # ------------------------- FIND_GSTREAMER_COMPONENT(GSTREAMER_1_0_APP gstreamer-app-1.0 gstapp-1.0) FIND_GSTREAMER_COMPONENT(GSTREAMER_1_0_AUDIO gstreamer-audio-1.0 gstaudio-1.0) FIND_GSTREAMER_COMPONENT(GSTREAMER_1_0_FFT gstreamer-fft-1.0 gstfft-1.0) FIND_GSTREAMER_COMPONENT(GSTREAMER_1_0_PBUTILS gstreamer-pbutils-1.0 gstpbutils-1.0) FIND_GSTREAMER_COMPONENT(GSTREAMER_1_0_VIDEO gstreamer-video-1.0 gstvideo-1.0) # ------------------------------------------------ # 3. Process the COMPONENTS passed to FIND_PACKAGE # ------------------------------------------------ set(_GSTREAMER_1_0_REQUIRED_VARS Glib_INCLUDE_DIRS Glib_LIBRARIES GSTREAMER_1_0_INCLUDE_DIRS GSTREAMER_1_0_LIBRARIES VERSION_OK GSTREAMER_1_0_BASE_INCLUDE_DIRS GSTREAMER_1_0_BASE_LIBRARIES) include(FindPackageHandleStandardArgs) FIND_PACKAGE_HANDLE_STANDARD_ARGS(GSTREAMER_1_0 DEFAULT_MSG GSTREAMER_1_0_LIBRARIES GSTREAMER_1_0_INCLUDE_DIRS) list(APPEND GSTREAMER_1_0_INCLUDE_DIRS ${Glib_INCLUDE_DIRS}) list(APPEND GSTREAMER_1_0_LIBRARIES ${Glib_LIBRARIES}) list(APPEND GSTREAMER_1_0_INCLUDE_DIRS ${GSTREAMER_1_0_BASE_INCLUDE_DIRS}) list(APPEND GSTREAMER_1_0_LIBRARIES ${GSTREAMER_1_0_BASE_LIBRARIES}) list(APPEND GSTREAMER_1_0_INCLUDE_DIRS ${GSTREAMER_1_0_APP_INCLUDE_DIRS}) list(APPEND GSTREAMER_1_0_LIBRARIES ${GSTREAMER_1_0_APP_LIBRARIES}) list(APPEND GSTREAMER_1_0_INCLUDE_DIRS ${GSTREAMER_1_0_VIDEO_INCLUDE_DIRS}) list(APPEND GSTREAMER_1_0_LIBRARIES ${GSTREAMER_1_0_VIDEO_LIBRARIES}) foreach (_component ${Gstreamer_FIND_COMPONENTS}) set(_gst_component "GSTREAMER_1_0_${_component}") string(TOUPPER ${_gst_component} _UPPER_NAME) FIND_PACKAGE_HANDLE_STANDARD_ARGS(${_UPPER_NAME} DEFAULT_MSG ${_UPPER_NAME}_INCLUDE_DIRS ${_UPPER_NAME}_LIBRARIES) list(APPEND GSTREAMER_1_0_INCLUDE_DIRS ${${_UPPER_NAME}_INCLUDE_DIRS}) list(APPEND GSTREAMER_1_0_LIBRARIES ${${_UPPER_NAME}_LIBRARIES}) endforeach () MARK_AS_ADVANCED(GSTREAMER_1_0_INCLUDE_DIRS GSTREAMER_1_0_LIBRARIES GSTREAMER_1_0_BASE_LIBRARY GSTREAMER_1_0_APP_LIBRARY)