1# - Find FFmpeg library and includes.
2# Set FFMPEG_FIND_COMPONENTS to the canonical names of the libraries
3# before using the module.
4# This module defines
5#  FFMPEG_INCLUDE_DIRS, where to find libavcodec/ac3_parser.h.
6#  FFMPEG_LIBRARIES, libraries to link against to use FFmpeg.
7#  FFMPEG_ROOT_DIR, The base directory to search for FFmpeg.
8#                        This can also be an environment variable.
9#  FFMPEG_FOUND, If false, do not try to use FFmpeg.
10#  FFMPEG_<COMPONENT>_LIBRARY, the given individual component libraries.
11#=============================================================================
12# Copyright 2020 Blender Foundation.
13#
14# Distributed under the OSI-approved BSD 3-Clause License,
15# see accompanying file BSD-3-Clause-license.txt for details.
16#=============================================================================
17
18# If FFMPEG_ROOT_DIR was defined in the environment, use it.
19if(NOT FFMPEG_ROOT_DIR AND NOT $ENV{FFMPEG_ROOT_DIR} STREQUAL "")
20  set(FFMPEG_ROOT_DIR $ENV{FFMPEG_ROOT_DIR})
21endif()
22
23set(_ffmpeg_SEARCH_DIRS
24  ${FFMPEG_ROOT_DIR}
25  /opt/lib/ffmpeg
26)
27
28if(NOT FFMPEG_FIND_COMPONENTS)
29  set(FFMPEG_FIND_COMPONENTS
30    # List taken from http://ffmpeg.org/download.html#build-mac
31    avcodec
32    avdevice
33    avfilter
34    avformat
35    avutil
36  )
37endif()
38
39find_path(_ffmpeg_INCLUDE_DIR
40  NAMES
41    libavcodec/ac3_parser.h
42  HINTS
43    ${_ffmpeg_SEARCH_DIRS}
44  PATH_SUFFIXES
45    include
46)
47
48set(_ffmpeg_LIBRARIES)
49foreach(_component ${FFMPEG_FIND_COMPONENTS})
50  string(TOUPPER ${_component} _upper_COMPONENT)
51  find_library(FFMPEG_${_upper_COMPONENT}_LIBRARY
52    NAMES
53      ${_upper_COMPONENT}
54    HINTS
55      ${LIBDIR}/ffmpeg
56    PATH_SUFFIXES
57      lib64 lib
58  )
59  if(NOT FFMPEG_${_upper_COMPONENT}_LIBRARY)
60    message(WARNING "Could NOT find FFmpeg ${_upper_COMPONENT}.")
61  endif()
62  list(APPEND _ffmpeg_LIBRARIES ${FFMPEG_${_upper_COMPONENT}_LIBRARY})
63  mark_as_advanced(FFMPEG_${_upper_COMPONENT}_LIBRARY)
64endforeach()
65
66# handle the QUIETLY and REQUIRED arguments and set FFMPEG_FOUND to TRUE if
67# all listed variables are TRUE
68include(FindPackageHandleStandardArgs)
69find_package_handle_standard_args(FFmpeg DEFAULT_MSG
70    _ffmpeg_LIBRARIES _ffmpeg_INCLUDE_DIR)
71
72IF(FFMPEG_FOUND)
73  set(FFMPEG_LIBRARIES ${_ffmpeg_LIBRARIES})
74  set(FFMPEG_INCLUDE_DIRS ${_ffmpeg_INCLUDE_DIR})
75ENDIF()
76
77mark_as_advanced(
78  FFMPEG_INCLUDE_DIR
79)
80
81unset(_ffmpeg_SEARCH_DIRS)
82unset(_ffmpeg_LIBRARIES)
83unset(_ffmpeg_INCLUDE_DIR)
84