CMake: include a FindFFMPEG module and use it

Thankfully taken from https://github.com/robotology/ycm/blob/master/find-modules/FindFFMPEG.cmake

1 files changed, 227 insertions, 0 deletions

diff --git a/cmake/Modules/FindFFMPEG.cmake b/cmake/Modules/FindFFMPEG.cmake
new file mode 100644
index 0000000..6e61e3d
--- /dev/null
+++ b/cmake/Modules/FindFFMPEG.cmake
@@ -0,0 +1,227 @@
+#.rst:
+# FindFFMPEG
+# ----------
+#
+# Find the native FFMPEG includes and library
+#
+# This module defines::
+#
+#  FFMPEG_INCLUDE_DIR, where to find avcodec.h, avformat.h ...
+#  FFMPEG_LIBRARIES, the libraries to link against to use FFMPEG.
+#  FFMPEG_FOUND, If false, do not try to use FFMPEG.
+#
+# also defined, but not for general use are::
+#
+#   FFMPEG_avformat_LIBRARY, where to find the FFMPEG avformat library.
+#   FFMPEG_avcodec_LIBRARY, where to find the FFMPEG avcodec library.
+#
+# This is useful to do it this way so that we can always add more libraries
+# if needed to ``FFMPEG_LIBRARIES`` if ffmpeg ever changes...
+
+#=============================================================================
+# Copyright: 1993-2008 Ken Martin, Will Schroeder, Bill Lorensen
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of YCM, substitute the full
+#  License text for the above reference.)
+
+# Originally from VTK project
+
+
+find_path(FFMPEG_INCLUDE_DIR1 avformat.h
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/ffmpeg
+  $ENV{FFMPEG_DIR}/libavformat
+  $ENV{FFMPEG_DIR}/include/libavformat
+  $ENV{FFMPEG_DIR}/include/ffmpeg
+  /usr/local/include/ffmpeg
+  /usr/include/ffmpeg
+  /usr/include/libavformat
+  /usr/include/ffmpeg/libavformat
+  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}/libavformat
+  /usr/local/include/libavformat
+)
+
+find_path(FFMPEG_INCLUDE_DIR2 avutil.h
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/ffmpeg
+  $ENV{FFMPEG_DIR}/libavutil
+  $ENV{FFMPEG_DIR}/include/libavutil
+  $ENV{FFMPEG_DIR}/include/ffmpeg
+  /usr/local/include/ffmpeg
+  /usr/include/ffmpeg
+  /usr/include/libavutil
+  /usr/include/ffmpeg/libavutil
+  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}/libavutil
+  /usr/local/include/libavutil
+)
+
+find_path(FFMPEG_INCLUDE_DIR3 avcodec.h
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/ffmpeg
+  $ENV{FFMPEG_DIR}/libavcodec
+  $ENV{FFMPEG_DIR}/include/libavcodec
+  $ENV{FFMPEG_DIR}/include/ffmpeg
+  /usr/local/include/ffmpeg
+  /usr/include/ffmpeg
+  /usr/include/libavcodec
+  /usr/include/ffmpeg/libavcodec
+  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}/libavcodec
+  /usr/local/include/libavcodec
+)
+
+find_path(FFMPEG_INCLUDE_DIR4 swscale.h
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/ffmpeg
+  $ENV{FFMPEG_DIR}/libswscale
+  $ENV{FFMPEG_DIR}/include/libswscale
+  $ENV{FFMPEG_DIR}/include/ffmpeg
+  /usr/local/include/ffmpeg
+  /usr/include/ffmpeg
+  /usr/include/libswscale
+  /usr/include/ffmpeg/libswscale
+  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}/libswscale
+  /usr/local/include/libswscale
+)
+
+find_path(FFMPEG_INCLUDE_DIR5 avdevice.h
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/ffmpeg
+  $ENV{FFMPEG_DIR}/libavdevice
+  $ENV{FFMPEG_DIR}/include/libavdevice
+  $ENV{FFMPEG_DIR}/include/ffmpeg
+  /usr/local/include/ffmpeg
+  /usr/include/ffmpeg
+  /usr/include/libavdevice
+  /usr/include/ffmpeg/libavdevice
+  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}/libavdevice
+  /usr/local/include/libavdevice
+)
+
+if(FFMPEG_INCLUDE_DIR1)
+  if(FFMPEG_INCLUDE_DIR2)
+    if(FFMPEG_INCLUDE_DIR3)
+      set(FFMPEG_INCLUDE_DIR ${FFMPEG_INCLUDE_DIR1}
+                             ${FFMPEG_INCLUDE_DIR2}
+                             ${FFMPEG_INCLUDE_DIR3})
+    endif()
+  endif()
+endif()
+
+if(FFMPEG_INCLUDE_DIR4)
+  set(FFMPEG_INCLUDE_DIR ${FFMPEG_INCLUDE_DIR}
+                         ${FFMPEG_INCLUDE_DIR4})
+endif()
+
+if(FFMPEG_INCLUDE_DIR5)
+  set(FFMPEG_INCLUDE_DIR ${FFMPEG_INCLUDE_DIR}
+                         ${FFMPEG_INCLUDE_DIR5}
+                         ${FFMPEG_INCLUDE_DIR5}/..)
+endif()
+
+find_library(FFMPEG_avformat_LIBRARY avformat
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/lib
+  $ENV{FFMPEG_DIR}/libavformat
+  /usr/local/lib
+  /usr/lib
+)
+
+find_library(FFMPEG_avcodec_LIBRARY avcodec
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/lib
+  $ENV{FFMPEG_DIR}/libavcodec
+  /usr/local/lib
+  /usr/lib
+)
+
+find_library(FFMPEG_avutil_LIBRARY avutil
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/lib
+  $ENV{FFMPEG_DIR}/libavutil
+  /usr/local/lib
+  /usr/lib
+)
+
+if(NOT DISABLE_SWSCALE)
+  find_library(FFMPEG_swscale_LIBRARY swscale
+    $ENV{FFMPEG_DIR}
+    $ENV{FFMPEG_DIR}/lib
+    $ENV{FFMPEG_DIR}/libswscale
+    /usr/local/lib
+    /usr/lib
+  )
+endif(NOT DISABLE_SWSCALE)
+
+find_library(FFMPEG_avdevice_LIBRARY avdevice
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/lib
+  $ENV{FFMPEG_DIR}/libavdevice
+  /usr/local/lib
+  /usr/lib
+)
+
+find_library(_FFMPEG_z_LIBRARY_ z
+  $ENV{FFMPEG_DIR}
+  $ENV{FFMPEG_DIR}/lib
+  /usr/local/lib
+  /usr/lib
+)
+
+
+
+if(FFMPEG_INCLUDE_DIR)
+  if(FFMPEG_avformat_LIBRARY)
+    if(FFMPEG_avcodec_LIBRARY)
+      if(FFMPEG_avutil_LIBRARY)
+        set(FFMPEG_FOUND "YES")
+        set(FFMPEG_LIBRARIES ${FFMPEG_avformat_LIBRARY}
+                             ${FFMPEG_avcodec_LIBRARY}
+                             ${FFMPEG_avutil_LIBRARY}
+          )
+        if(FFMPEG_swscale_LIBRARY)
+          set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES}
+                               ${FFMPEG_swscale_LIBRARY}
+          )
+        endif()
+        if(FFMPEG_avdevice_LIBRARY)
+          set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES}
+                               ${FFMPEG_avdevice_LIBRARY}
+          )
+        endif()
+        if(_FFMPEG_z_LIBRARY_)
+          set( FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES}
+                                ${_FFMPEG_z_LIBRARY_}
+          )
+        endif()
+      endif()
+    endif()
+  endif()
+endif()
+
+mark_as_advanced(
+  FFMPEG_INCLUDE_DIR
+  FFMPEG_INCLUDE_DIR1
+  FFMPEG_INCLUDE_DIR2
+  FFMPEG_INCLUDE_DIR3
+  FFMPEG_INCLUDE_DIR4
+  FFMPEG_INCLUDE_DIR5
+  FFMPEG_avformat_LIBRARY
+  FFMPEG_avcodec_LIBRARY
+  FFMPEG_avutil_LIBRARY
+  FFMPEG_swscale_LIBRARY
+  FFMPEG_avdevice_LIBRARY
+  _FFMPEG_z_LIBRARY_
+  )
+
+# Set package properties if FeatureSummary was included
+if(COMMAND set_package_properties)
+  set_package_properties(FFMPEG PROPERTIES DESCRIPTION "A complete, cross-platform solution to record, convert and stream audio and video")
+  set_package_properties(FFMPEG PROPERTIES URL "http://ffmpeg.org/")
+endif()