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# - Try to find GStreamer and its plugins
# Once done, this will define
#
# GSTREAMER_FOUND - system has GStreamer
# GSTREAMER_INCLUDE_DIRS - the GStreamer include directories
# GSTREAMER_LIBRARIES - link these to use GStreamer
#
# Additionally, gstreamer-base is always looked for and required, and
# the following related variables are defined:
#
# GSTREAMER_BASE_INCLUDE_DIRS - gstreamer-base's include directory
# GSTREAMER_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-allocators: GSTREAMER_ALLOCATORS_INCLUDE_DIRS and GSTREAMER_ALLOCATORS_LIBRARIES
# gstreamer-app: GSTREAMER_APP_INCLUDE_DIRS and GSTREAMER_APP_LIBRARIES
# gstreamer-audio: GSTREAMER_AUDIO_INCLUDE_DIRS and GSTREAMER_AUDIO_LIBRARIES
# gstreamer-fft: GSTREAMER_FFT_INCLUDE_DIRS and GSTREAMER_FFT_LIBRARIES
# gstreamer-gl: GSTREAMER_GL_INCLUDE_DIRS and GSTREAMER_GL_LIBRARIES
# gstreamer-mpegts: GSTREAMER_MPEGTS_INCLUDE_DIRS and GSTREAMER_MPEGTS_LIBRARIES
# gstreamer-pbutils: GSTREAMER_PBUTILS_INCLUDE_DIRS and GSTREAMER_PBUTILS_LIBRARIES
# gstreamer-tag: GSTREAMER_TAG_INCLUDE_DIRS and GSTREAMER_TAG_LIBRARIES
# gstreamer-video: GSTREAMER_VIDEO_INCLUDE_DIRS and GSTREAMER_VIDEO_LIBRARIES
# gstreamer-codecparser:GSTREAMER_CODECPARSERS_INCLUDE_DIRS and GSTREAMER_CODECPARSERS_LIBRARIES
# gstreamer-full: GSTREAMER_FULL_INCLUDE_DIRS and GSTREAMER_FULL_LIBRARIES
# gstreamer-transcoder: GSTREAMER_TRANSCODER_INCLUDE_DIRS and GSTREAMER_TRANSCODER_LIBRARIES
# gstreamer-rtp: GSTREAMER_RTP_INCLUDE_DIRS and GSTREAMER_RTP_LIBRARIES
# gstreamer-sdp: GSTREAMER_SDP_INCLUDE_DIRS and GSTREAMER_SDP_LIBRARIES
# gstreamer-webrtc: GSTREAMER_WEBRTC_INCLUDE_DIRS and GSTREAMER_WEBRTC_LIBRARIES
#
# Copyright (C) 2012 Raphael Kubo da Costa <rakuco@webkit.org>
#
# 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 QUIET)
# Helper macro to find a GStreamer plugin (or GStreamer itself)
# _component_prefix is prepended to the _INCLUDE_DIRS and _LIBRARIES variables (eg. "GSTREAMER_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)
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 ()
# The gst .pc files might have their `includedir` not specify the
# gstreamer-1.0 suffix. In that case the `Cflags` contain
# ${includedir}/gstreamer-1.0 which remains correct. The issue here is that
# we don't rely on the `Cflags`, cmake fails to generate a proper
# `.._INCLUDE_DIRS` variable in this case. So we need to do it here...
# Populate the list initially from the _INCLUDE_DIRS result variable.
set(${_component_prefix}_INCLUDE_DIRS ${PC_${_component_prefix}_INCLUDE_DIRS})
set(_include_dir "${PC_${_component_prefix}_INCLUDEDIR}")
string(REGEX MATCH "(.*)/gstreamer-1.0" _dummy "${_include_dir}")
if ("${CMAKE_MATCH_1}" STREQUAL "")
find_path(${_component_prefix}_RESOLVED_INCLUDEDIR NAMES "${_include_dir}/gstreamer-1.0")
# Only add the resolved path from `_INCLUDEDIR` if found.
if (${_component_prefix}_RESOLVED_INCLUDEDIR)
list(APPEND ${_component_prefix}_INCLUDE_DIRS
"${${_component_prefix}_RESOLVED_INCLUDEDIR}")
endif ()
endif ()
find_library(${_component_prefix}_LIBRARIES
NAMES ${_library}
HINTS ${PC_${_component_prefix}_LIBRARY_DIRS} ${PC_${_component_prefix}_LIBDIR}
)
endmacro()
# ------------------------
# 1. Find GStreamer itself
# ------------------------
# 1.1. Find headers and libraries
FIND_GSTREAMER_COMPONENT(GSTREAMER gstreamer-1.0 gstreamer-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_BASE gstreamer-base-1.0 gstbase-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_FULL gstreamer-full-1.0>=1.17.0 gstreamer-full-1.0)
# -------------------------
# 2. Find GStreamer plugins
# -------------------------
FIND_GSTREAMER_COMPONENT(GSTREAMER_ALLOCATORS gstreamer-allocators-1.0 gstallocators-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_APP gstreamer-app-1.0 gstapp-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_AUDIO gstreamer-audio-1.0 gstaudio-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_FFT gstreamer-fft-1.0 gstfft-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_GL gstreamer-gl-1.0 gstgl-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_MPEGTS gstreamer-mpegts-1.0>=1.4.0 gstmpegts-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_PBUTILS gstreamer-pbutils-1.0 gstpbutils-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_TAG gstreamer-tag-1.0 gsttag-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_VIDEO gstreamer-video-1.0 gstvideo-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_CODECPARSERS gstreamer-codecparsers-1.0 gstcodecparsers-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_TRANSCODER gstreamer-transcoder-1.0 gsttranscoder-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_RTP gstreamer-rtp-1.0 gstrtp-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_SDP gstreamer-sdp-1.0 gstsdp-1.0)
FIND_GSTREAMER_COMPONENT(GSTREAMER_WEBRTC gstreamer-webrtc-1.0 gstwebrtc-1.0)
# ------------------------------------------------
# 3. Process the COMPONENTS passed to FIND_PACKAGE
# ------------------------------------------------
set(_GSTREAMER_REQUIRED_VARS GSTREAMER_INCLUDE_DIRS GSTREAMER_LIBRARIES GSTREAMER_VERSION GSTREAMER_BASE_INCLUDE_DIRS GSTREAMER_BASE_LIBRARIES)
foreach (_component ${GStreamer_FIND_COMPONENTS})
set(_gst_component "GSTREAMER_${_component}")
string(TOUPPER ${_gst_component} _UPPER_NAME)
list(APPEND _GSTREAMER_REQUIRED_VARS ${_UPPER_NAME}_INCLUDE_DIRS ${_UPPER_NAME}_LIBRARIES)
endforeach ()
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(GStreamer REQUIRED_VARS _GSTREAMER_REQUIRED_VARS
VERSION_VAR GSTREAMER_VERSION)
mark_as_advanced(
GSTREAMER_ALLOCATORS_INCLUDE_DIRS
GSTREAMER_ALLOCATORS_LIBRARIES
GSTREAMER_APP_INCLUDE_DIRS
GSTREAMER_APP_LIBRARIES
GSTREAMER_AUDIO_INCLUDE_DIRS
GSTREAMER_AUDIO_LIBRARIES
GSTREAMER_BASE_INCLUDE_DIRS
GSTREAMER_BASE_LIBRARIES
GSTREAMER_FFT_INCLUDE_DIRS
GSTREAMER_FFT_LIBRARIES
GSTREAMER_GL_INCLUDE_DIRS
GSTREAMER_GL_LIBRARIES
GSTREAMER_INCLUDE_DIRS
GSTREAMER_LIBRARIES
GSTREAMER_MPEGTS_INCLUDE_DIRS
GSTREAMER_MPEGTS_LIBRARIES
GSTREAMER_PBUTILS_INCLUDE_DIRS
GSTREAMER_PBUTILS_LIBRARIES
GSTREAMER_TAG_INCLUDE_DIRS
GSTREAMER_TAG_LIBRARIES
GSTREAMER_VIDEO_INCLUDE_DIRS
GSTREAMER_VIDEO_LIBRARIES
GSTREAMER_CODECPARSERS_INCLUDE_DIRS
GSTREAMER_CODECPARSERS_LIBRARIES
GSTREAMER_FULL_INCLUDE_DIRS
GSTREAMER_FULL_LIBRARIES
GSTREAMER_WEBRTC_INCLUDE_DIRS
GSTREAMER_WEBRTC_LIBRARIES
)
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