Support for finding ffmpeg libraries without pkg-config

Signed-off-by: Silvio Traversaro <silvio.traversaro@iit.it>
gazebosim · May 16, 2020 · ab2c08d · ab2c08d
1 parent d5be066
commit ab2c08d
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Showing 5 changed files with 85 additions and 5 deletions.
diff --git a/cmake/FindAVCODEC.cmake b/cmake/FindAVCODEC.cmake
@@ -16,4 +16,16 @@
 ########################################
 # Find avcodec
 include(IgnPkgConfig)
-ign_pkg_check_modules(AVCODEC libavcodec)
+ign_pkg_check_modules_quiet(AVCODEC libavcodec)
+
+if(NOT AVCODEC_FOUND)
+  include(IgnManualSearch)
+  ign_manual_search(AVCODEC
+                    HEADER_NAMES "libavcodec/avcodec.h"
+                    LIBRARY_NAMES "avcodec")
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+  AVCODEC
+  REQUIRED_VARS AVCODEC_FOUND)
diff --git a/cmake/FindAVDEVICE.cmake b/cmake/FindAVDEVICE.cmake
@@ -20,4 +20,36 @@ set(av_minor ${AVDEVICE_FIND_VERSION_MINOR})
 set(av_patch ${AVDEVICE_FIND_VERSION_PATCH})
 
 include(IgnPkgConfig)
-ign_pkg_check_modules(AVDEVICE "libavdevice >= ${av_major}.${av_minor}.${av_patch}")
+ign_pkg_check_modules_quiet(AVDEVICE "libavdevice >= ${av_major}.${av_minor}.${av_patch}")
+
+if(NOT AVDEVICE_FOUND)
+  include(IgnManualSearch)
+  ign_manual_search(AVDEVICE
+                    HEADER_NAMES "libavdevice/avdevice.h"
+                    LIBRARY_NAMES "avdevice")
+
+  # Version check
+  if(AVDEVICE_FOUND)
+    file(READ "${AVDEVICE_INCLUDE_DIRS}/libavdevice/version.h" ver_file)
+
+    string(REGEX MATCH "LIBAVDEVICE_VERSION_MAJOR[ \t\r\n]+([0-9]*)" _ ${ver_file})
+    set(ver_major ${CMAKE_MATCH_1})
+
+    string(REGEX MATCH "LIBAVDEVICE_VERSION_MINOR[ \t\r\n]+([0-9]*)" _ ${ver_file})
+    set(ver_minor ${CMAKE_MATCH_1})
+
+    string(REGEX MATCH "LIBAVDEVICE_VERSION_MICRO[ \t\r\n]+([0-9]*)" _ ${ver_file})
+    set(ver_patch ${CMAKE_MATCH_1})
+
+    set(AVDEVICE_VERSION "${ver_major}.${ver_minor}.${ver_patch}")
+
+    if(AVDEVICE_VERSION VERSION_LESS AVDEVICE_FIND_VERSION)
+      set(AVDEVICE_FOUND FALSE)
+    endif()
+  endif()
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+  AVDEVICE
+  REQUIRED_VARS AVDEVICE_FOUND)
diff --git a/cmake/FindAVFORMAT.cmake b/cmake/FindAVFORMAT.cmake
@@ -16,4 +16,16 @@
 ########################################
 # Find AV format
 include(IgnPkgConfig)
-ign_pkg_check_modules(AVFORMAT libavformat)
+ign_pkg_check_modules_quiet(AVFORMAT libavformat)
+
+if(NOT AVFORMAT_FOUND)
+  include(IgnManualSearch)
+  ign_manual_search(AVFORMAT
+                    HEADER_NAMES "libavformat/avformat.h"
+                    LIBRARY_NAMES "avformat")
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+  AVFORMAT
+  REQUIRED_VARS AVFORMAT_FOUND)
diff --git a/cmake/FindAVUTIL.cmake b/cmake/FindAVUTIL.cmake
@@ -16,4 +16,16 @@
 ########################################
 # Find avutil
 include(IgnPkgConfig)
-ign_pkg_check_modules(AVUTIL libavutil)
+ign_pkg_check_modules_quiet(AVUTIL libavutil)
+
+if(NOT AVUTIL_FOUND)
+  include(IgnManualSearch)
+  ign_manual_search(AVUTIL
+                    HEADER_NAMES "libavutil/avutil.h"
+                    LIBRARY_NAMES "avutil")
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+  AVUTIL
+  REQUIRED_VARS AVUTIL_FOUND)
diff --git a/cmake/FindSWSCALE.cmake b/cmake/FindSWSCALE.cmake
@@ -16,4 +16,16 @@
 ########################################
 # Find libswscale format
 include(IgnPkgConfig)
-ign_pkg_check_modules(SWSCALE libswscale)
+ign_pkg_check_modules_quiet(SWSCALE libswscale)
+
+if(NOT SWSCALE_FOUND)
+  include(IgnManualSearch)
+  ign_manual_search(SWSCALE
+                    HEADER_NAMES "libswscale/swscale.h"
+                    LIBRARY_NAMES "swscale")
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+  SWSCALE
+  REQUIRED_VARS SWSCALE_FOUND)