First ffmpeg reader

CMakeLists.txt

@@ -115,6 +115,7 @@ set (USE_QT ON CACHE BOOL "Include Qt support")
 set (FORCE_OPENGL_1 OFF CACHE BOOL "Force iv to use OpenGL's fixed pipeline")
 set (USE_PYTHON ON CACHE BOOL "Build the Python bindings")
 set (USE_FIELD3D ON CACHE BOOL "Use Field3D if found")
+set (USE_FFMPEG ON CACHE BOOL "Use FFmpeg if found")
 set (USE_OPENJPEG ON CACHE BOOL "Use OpenJpeg if found")
 set (USE_OCIO ON CACHE BOOL "Use OpenColorIO for color management if found")
 set (USE_OPENCV ON CACHE BOOL "Use OpenCV if found")
@@ -314,6 +315,7 @@ if (NOT EMBEDPLUGINS)
     add_subdirectory (src/cineon.imageio)
     add_subdirectory (src/dds.imageio)
     add_subdirectory (src/dpx.imageio)
+    add_subdirectory (src/ffmpeg.imageio)
     add_subdirectory (src/field3d.imageio)
     add_subdirectory (src/fits.imageio)
     add_subdirectory (src/gif.imageio)

Makefile

@@ -96,6 +96,10 @@ ifneq (${PYTHON_VERSION},)
 MY_CMAKE_FLAGS += -DPYTHON_VERSION:STRING=${PYTHON_VERSION}
 endif
 
+ifneq (${USE_FFMPEG},)
+MY_CMAKE_FLAGS += -DUSE_FFMPEG:BOOL=${USE_FFMPEG}
+endif
+
 ifneq (${USE_FIELD3D},)
 MY_CMAKE_FLAGS += -DUSE_FIELD3D:BOOL=${USE_FIELD3D}
 endif
@@ -339,6 +343,7 @@ help:
 	@echo "  make FORCE_OPENGL_1=1 ...   Force iv to use OpenGL's fixed pipeline"
 	@echo "  make USE_PYTHON=0 ...       Don't build the Python binding"
 	@echo "  make PYTHON_VERSION=2.6 ... Specify the Python version"
+	@echo "  make USE_FFMPEG=0 ...       Don't build the FFmpeg plugin"
 	@echo "  make USE_FIELD3D=0 ...      Don't build the Field3D plugin"
 	@echo "  make USE_OPENJPEG=0 ...     Don't build the JPEG-2000 plugin"
 	@echo "  make USE_GIF=0 ...          Don't build the GIF plugin"

src/cmake/externalpackages.cmake

@@ -269,6 +269,26 @@ endif (USE_OPENGL)
 ###########################################################################
 
 
+###########################################################################
+# FFmpeg
+
+if (USE_FFMPEG)
+    find_package (FFmpeg)
+    if (FFMPEG_INCLUDE_DIR AND FFMPEG_LIBRARIES)
+        set (FFMPEG_FOUND TRUE)
+        if (VERBOSE)
+            message (STATUS "FFMPEG includes = ${FFMPEG_INCLUDE_DIR}")
+            message (STATUS "FFMPEG library = ${FFMPEG_LIBRARIES}")
+        endif ()
+    else ()
+        message (STATUS "FFMPEG not found")
+    endif ()
+endif()
+
+# end FFmpeg setup
+###########################################################################
+
+
 ###########################################################################
 # Field3d
 

src/cmake/modules/FindFFmpeg.cmake

@@ -0,0 +1,85 @@
+# - Try to find ffmpeg libraries (libavcodec, libavformat and libavutil)
+# Once done this will define
+#
+#  FFMPEG_FOUND - system has ffmpeg or libav
+#  FFMPEG_INCLUDE_DIR - the ffmpeg include directory
+#  FFMPEG_LIBRARIES - Link these to use ffmpeg
+#  FFMPEG_LIBAVCODEC
+#  FFMPEG_LIBAVFORMAT
+#  FFMPEG_LIBAVUTIL
+#
+#  Copyright (c) 2008 Andreas Schneider <mail@cynapses.org>
+#  Modified for other libraries by Lasse Kärkkäinen <tronic>
+#  Modified for Hedgewars by Stepik777
+#
+#  Redistribution and use is allowed according to the terms of the New
+#  BSD license.
+#
+
+if (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)
+  # in cache already
+  set(FFMPEG_FOUND TRUE)
+else (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)
+  # use pkg-config to get the directories and then use these values
+  # in the FIND_PATH() and FIND_LIBRARY() calls
+  find_package(PkgConfig)
+  if (PKG_CONFIG_FOUND)
+    pkg_check_modules(_FFMPEG_AVCODEC libavcodec)
+    pkg_check_modules(_FFMPEG_AVFORMAT libavformat)
+    pkg_check_modules(_FFMPEG_AVUTIL libavutil)
+    pkg_check_modules(_FFMPEG_SWSCALE libswscale)
+  endif (PKG_CONFIG_FOUND)
+
+  find_path(FFMPEG_AVCODEC_INCLUDE_DIR
+    NAMES libavcodec/avcodec.h
+    PATHS ${_FFMPEG_AVCODEC_INCLUDE_DIRS} /usr/include /usr/local/include /opt/local/include /sw/include
+    PATH_SUFFIXES ffmpeg libav
+  )
+
+  find_library(FFMPEG_LIBAVCODEC
+    NAMES avcodec
+    PATHS ${_FFMPEG_AVCODEC_LIBRARY_DIRS} /usr/lib /usr/local/lib /opt/local/lib /sw/lib
+  )
+
+  find_library(FFMPEG_LIBAVFORMAT
+    NAMES avformat
+    PATHS ${_FFMPEG_AVFORMAT_LIBRARY_DIRS} /usr/lib /usr/local/lib /opt/local/lib /sw/lib
+  )
+
+  find_library(FFMPEG_LIBAVUTIL
+    NAMES avutil
+    PATHS ${_FFMPEG_AVUTIL_LIBRARY_DIRS} /usr/lib /usr/local/lib /opt/local/lib /sw/lib
+  )
+
+  find_library(FFMPEG_LIBSWSCALE
+    NAMES swscale
+    PATHS ${_FFMPEG_SWSCALE_LIBRARY_DIRS} /usr/lib /usr/local/lib /opt/local/lib /sw/lib
+  )
+
+  if (FFMPEG_LIBAVCODEC AND FFMPEG_LIBAVFORMAT)
+    set(FFMPEG_FOUND TRUE)
+  endif()
+
+  if (FFMPEG_FOUND)
+    set(FFMPEG_INCLUDE_DIR ${FFMPEG_AVCODEC_INCLUDE_DIR})
+
+    set(FFMPEG_LIBRARIES
+      ${FFMPEG_LIBAVCODEC}
+      ${FFMPEG_LIBAVFORMAT}
+      ${FFMPEG_LIBAVUTIL}
+      ${FFMPEG_LIBSWSCALE}
+    )
+
+  endif (FFMPEG_FOUND)
+
+  if (FFMPEG_FOUND)
+    if (NOT FFMPEG_FIND_QUIETLY)
+      message(STATUS "Found FFMPEG or Libav: ${FFMPEG_LIBRARIES}, ${FFMPEG_INCLUDE_DIR}")
+    endif (NOT FFMPEG_FIND_QUIETLY)
+  else (FFMPEG_FOUND)
+    if (FFMPEG_FIND_REQUIRED)
+      message(FATAL_ERROR "Could not find libavcodec or libavformat or libavutil or libswscale")
+    endif (FFMPEG_FIND_REQUIRED)
+  endif (FFMPEG_FOUND)
+
+endif (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)

src/ffmpeg.imageio/CMakeLists.txt

@@ -0,0 +1,10 @@
+if (USE_FFMPEG)
+    if (FFMPEG_FOUND)
+        include_directories (${FFMPEG_INCLUDE_DIR})
+        add_oiio_plugin (ffmpeginput.cpp ffmpegoutput.cpp
+                         LINK_LIBRARIES ${FFMPEG_LIBRARY}
+                        )
+    else()
+        message (STATUS "FFmpeg not found: ffmpeg plugin will not be built")
+    endif()
+endif()