cmake_modules/FindFFMPEG.cmake
author unc0rr
Thu, 01 Nov 2012 14:31:53 +0400
branch0.9.18
changeset 7916 be11c26a3a0b
parent 7816 a25e943dd4b0
child 8279 c03d64969112
permissions -rw-r--r--
Fix 0.9.18 desync: CreateNetGame() slot creates signal-slot connections from hwnet to hwgame. The problem is that this slot is called asynchronously using queued connection, and hwnet could send some signals to hwgame before hwgame object is created and connected. Changed this to direct connection. Also changed connections to hwgame object to queued, but this is unrelated. Sorry, it is frontend patch. Maybe a little delay on server side could help, but not much, as tcp packets could get glued on client's side, and that greately depends on pc and internet connection performance. Frontend should be reworked to be safe for queued connections, as it is extemely dangerous to have a mix of queued/direct connections.

# - 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)
  endif (PKG_CONFIG_FOUND)

  find_path(FFMPEG_AVCODEC_INCLUDE_DIR
    NAMES libavcodec/avcodec.h
    PATHS ${_FFMPEG_AVCODEC_INCLUDE_DIRS}
        /usr/include /usr/local/include #system level
        /opt/local/include #macports
        /sw/include #fink
    PATH_SUFFIXES ffmpeg libav
  )

  find_library(FFMPEG_LIBAVCODEC
    NAMES avcodec
    PATHS ${_FFMPEG_AVCODEC_LIBRARY_DIRS}
        /usr/lib /usr/local/lib #system level
        /opt/local/lib #macports
        /sw/lib #fink
  )

  find_library(FFMPEG_LIBAVFORMAT
    NAMES avformat
    PATHS ${_FFMPEG_AVFORMAT_LIBRARY_DIRS}
        /usr/lib /usr/local/lib #system level
        /opt/local/lib #macports
        /sw/lib #fink
  )

  find_library(FFMPEG_LIBAVUTIL
    NAMES avutil
    PATHS ${_FFMPEG_AVUTIL_LIBRARY_DIRS}
        /usr/lib /usr/local/lib #system level
        /opt/local/lib #macports
        /sw/lib #fink
  )

  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}
    )
    if (APPLE)
      set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} "bz2" "-framework CoreVideo" "-framework VideoDecodeAcceleration")
    endif(APPLE)

  endif (FFMPEG_FOUND)

  if (FFMPEG_FOUND)
    if (NOT FFMPEG_FIND_QUIETLY)
      message(STATUS "Found FFMPEG/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")
    endif (FFMPEG_FIND_REQUIRED)
  endif (FFMPEG_FOUND)

endif (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)