FindLibrtmp.cmake (3878B)
1 #*************************************************************************** 2 # _ _ ____ _ 3 # Project ___| | | | _ \| | 4 # / __| | | | |_) | | 5 # | (__| |_| | _ <| |___ 6 # \___|\___/|_| \_\_____| 7 # 8 # Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 9 # 10 # This software is licensed as described in the file COPYING, which 11 # you should have received as part of this distribution. The terms 12 # are also available at https://curl.se/docs/copyright.html. 13 # 14 # You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 # copies of the Software, and permit persons to whom the Software is 16 # furnished to do so, under the terms of the COPYING file. 17 # 18 # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 # KIND, either express or implied. 20 # 21 # SPDX-License-Identifier: curl 22 # 23 ########################################################################### 24 # Find the librtmp library 25 # 26 # Input variables: 27 # 28 # - `LIBRTMP_INCLUDE_DIR`: The librtmp include directory. 29 # - `LIBRTMP_LIBRARY`: Path to `librtmp` library. 30 # 31 # Result variables: 32 # 33 # - `LIBRTMP_FOUND`: System has librtmp. 34 # - `LIBRTMP_INCLUDE_DIRS`: The librtmp include directories. 35 # - `LIBRTMP_LIBRARIES`: The librtmp library names. 36 # - `LIBRTMP_LIBRARY_DIRS`: The librtmp library directories. 37 # - `LIBRTMP_PC_REQUIRES`: The librtmp pkg-config packages. 38 # - `LIBRTMP_CFLAGS`: Required compiler flags. 39 # - `LIBRTMP_VERSION`: Version of librtmp. 40 41 set(LIBRTMP_PC_REQUIRES "librtmp") 42 43 if(CURL_USE_PKGCONFIG AND 44 NOT DEFINED LIBRTMP_INCLUDE_DIR AND 45 NOT DEFINED LIBRTMP_LIBRARY) 46 find_package(PkgConfig QUIET) 47 pkg_check_modules(LIBRTMP ${LIBRTMP_PC_REQUIRES}) 48 endif() 49 50 if(LIBRTMP_FOUND AND LIBRTMP_INCLUDE_DIRS) 51 set(Librtmp_FOUND TRUE) 52 string(REPLACE ";" " " LIBRTMP_CFLAGS "${LIBRTMP_CFLAGS}") 53 message(STATUS "Found Librtmp (via pkg-config): ${LIBRTMP_INCLUDE_DIRS} (found version \"${LIBRTMP_VERSION}\")") 54 else() 55 find_path(LIBRTMP_INCLUDE_DIR NAMES "librtmp/rtmp.h") 56 find_library(LIBRTMP_LIBRARY NAMES "rtmp") 57 58 unset(LIBRTMP_VERSION CACHE) 59 if(LIBRTMP_INCLUDE_DIR AND EXISTS "${LIBRTMP_INCLUDE_DIR}/librtmp/rtmp.h") 60 set(_version_regex "#[\t ]*define[\t ]+RTMP_LIB_VERSION[\t ]+0x([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F]).*") 61 file(STRINGS "${LIBRTMP_INCLUDE_DIR}/librtmp/rtmp.h" _version_str REGEX "${_version_regex}") 62 string(REGEX REPLACE "${_version_regex}" "\\1" _version_str1 "${_version_str}") 63 string(REGEX REPLACE "${_version_regex}" "\\2" _version_str2 "${_version_str}") 64 if(CMAKE_VERSION VERSION_LESS 3.13) 65 # No support for hex version numbers, just strip leading zeroes 66 string(REGEX REPLACE "^0" "" _version_str1 "${_version_str1}") 67 string(REGEX REPLACE "^0" "" _version_str2 "${_version_str2}") 68 else() 69 math(EXPR _version_str1 "0x${_version_str1}" OUTPUT_FORMAT DECIMAL) 70 math(EXPR _version_str2 "0x${_version_str2}" OUTPUT_FORMAT DECIMAL) 71 endif() 72 set(LIBRTMP_VERSION "${_version_str1}.${_version_str2}") 73 unset(_version_regex) 74 unset(_version_str1) 75 unset(_version_str2) 76 endif() 77 78 include(FindPackageHandleStandardArgs) 79 find_package_handle_standard_args(Librtmp 80 REQUIRED_VARS 81 LIBRTMP_INCLUDE_DIR 82 LIBRTMP_LIBRARY 83 VERSION_VAR 84 LIBRTMP_VERSION 85 ) 86 87 if(LIBRTMP_FOUND) 88 set(LIBRTMP_INCLUDE_DIRS ${LIBRTMP_INCLUDE_DIR}) 89 set(LIBRTMP_LIBRARIES ${LIBRTMP_LIBRARY}) 90 endif() 91 92 mark_as_advanced(LIBRTMP_INCLUDE_DIR LIBRTMP_LIBRARY) 93 94 # Necessary when linking a static librtmp 95 find_package(OpenSSL) 96 if(OPENSSL_FOUND) 97 list(APPEND LIBRTMP_LIBRARIES OpenSSL::SSL OpenSSL::Crypto) 98 endif() 99 endif() 100 101 if(LIBRTMP_FOUND AND WIN32) 102 list(APPEND LIBRTMP_LIBRARIES "winmm") 103 endif()