(#7728) Add soxr library

* Add soxr port

* Make config.yml end with a newline

* Extract pffft license header from source file

* Remove pkgconfig and share folders

* Add libm to package_info

* Fix fPIC option

* Use cmake_find_package_multi generator

Co-authored-by: Uilian Ries <uilianries@gmail.com>

* Simplify license header extraction

* Minor tweak

* Fix tools.save call

* Use CMake conan helper wrapper

* Fix missing newline at end-of-file

* Apply suggestions from code review

Co-authored-by: Anonymous Maarten <madebr@users.noreply.github.com>

* Add separate components for core and lsr

* Fix missing newline at end-of-file

Co-authored-by: chausner <chausner@users.noreply.github.com>
Co-authored-by: Uilian Ries <uilianries@gmail.com>
Co-authored-by: Anonymous Maarten <madebr@users.noreply.github.com>

recipes/soxr/all/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 2.8.11)
+project(cmake_wrapper)
+
+include(conanbuildinfo.cmake)
+conan_basic_setup()
+
+add_subdirectory("source_subfolder")

recipes/soxr/all/conandata.yml

@@ -0,0 +1,10 @@
+sources:
+  "0.1.3":
+    url: https://sourceforge.net/projects/soxr/files/soxr-0.1.3-Source.tar.xz
+    sha1: "32ea46b1a8c0c15f835422892d02fce8286aec3c"
+patches:
+  "0.1.3":
+    - base_path: source_subfolder
+      patch_file: "patches/findpackage-openmp.patch"
+    - base_path: source_subfolder
+      patch_file: "patches/cmake-source-dir.patch"

recipes/soxr/all/conanfile.py

@@ -0,0 +1,116 @@
+from conans import ConanFile, CMake, tools
+import os
+import re
+
+required_conan_version = ">=1.33.0"
+
+
+class SoxrConan(ConanFile):
+    name = "soxr"
+    description = "The SoX Resampler library libsoxr performs fast, high-quality one-dimensional sample rate conversion."
+    homepage = "https://sourceforge.net/projects/soxr/"
+    topics = ("resampling", "audio", "sample-rate", "conversion")
+    license = "LGPL-2.1-or-later"
+    url = "https://github.com/conan-io/conan-center-index"
+    settings = "os", "compiler", "build_type", "arch"
+    options = {
+        "shared": [True, False], 
+        "fPIC": [True, False], 
+        "with_openmp": [True, False],
+        "with_lsr_bindings": [True, False]
+    }
+    default_options = {
+        "shared": False, 
+        "fPIC": True, 
+        "with_openmp": False,
+        "with_lsr_bindings": True
+    }
+    generators = "cmake"
+    exports_sources = ["CMakeLists.txt", "patches/**"]
+
+    _cmake = None
+
+    @property
+    def _source_subfolder(self):
+        return "source_subfolder"
+
+    @property
+    def _build_subfolder(self):
+        return "build_subfolder"
+
+    def config_options(self):
+        if self.settings.os == "Windows":
+            del self.options.fPIC
+
+    def configure(self):
+        if self.options.shared:
+            del self.options.fPIC
+        del self.settings.compiler.cppstd
+        del self.settings.compiler.libcxx
+
+    def source(self):
+        tools.get(**self.conan_data["sources"][self.version],
+            destination=self._source_subfolder, strip_root=True)
+
+    def _configure_cmake(self):
+        if self._cmake:
+            return self._cmake        
+        self._cmake = CMake(self)
+        if self.settings.compiler == "Visual Studio":
+            self._cmake.definitions["BUILD_SHARED_RUNTIME"] = "MD" in self.settings.compiler.runtime
+        elif self.settings.compiler == "msvc":
+            self._cmake.definitions["BUILD_SHARED_RUNTIME"] = self.settings.compiler.runtime == "dynamic"
+        self._cmake.definitions["BUILD_TESTS"] = False   
+        self._cmake.definitions["WITH_OPENMP"] = self.options.with_openmp
+        self._cmake.definitions["WITH_LSR_BINDINGS"] = self.options.with_lsr_bindings
+        self._cmake.configure(build_folder=self._build_subfolder)
+        return self._cmake
+
+    def build(self):
+        for patch in self.conan_data.get("patches", {}).get(self.version, []):
+            tools.patch(**patch)
+        cmake = self._configure_cmake()
+        cmake.build()
+
+    def _extract_pffft_license(self):
+        # extract license header from pffft.c and store it in the package folder
+        pffft_c = tools.load(os.path.join(self._source_subfolder, "src", "pffft.c"))
+        license_header = re.search(r"/\* (Copyright.*?)\*/", pffft_c, re.DOTALL).group(1)
+        license_header = "\n".join(line.lstrip() for line in license_header.splitlines())
+        tools.save(os.path.join(self.package_folder, "licenses", "pffft"), license_header)
+
+    def package(self):
+        self.copy("LICENCE", dst="licenses", src=self._source_subfolder)
+        self._extract_pffft_license()
+        cmake = self._configure_cmake()
+        cmake.install()
+        tools.rmdir(os.path.join(self.package_folder, "doc"))
+        tools.rmdir(os.path.join(self.package_folder, "lib", "pkgconfig"))
+        tools.rmdir(os.path.join(self.package_folder, "share"))
+
+    def package_info(self):
+        # core component
+        self.cpp_info.components["core"].names["pkg_config"] = "soxr"
+        self.cpp_info.components["core"].libs = ["soxr"]
+        if self.settings.os in ("FreeBSD", "Linux"):
+            self.cpp_info.components["core"].system_libs = ["m"]
+        if self.settings.os == "Windows" and self.options.shared:
+            self.cpp_info.components["core"].defines.append("SOXR_DLL")
+        if not self.options.shared and self.options.with_openmp:
+            if self.settings.compiler in ("Visual Studio", "msvc"):
+                openmp_flags = ["-openmp"]
+            elif self.settings.compiler in ("gcc", "clang"):
+                openmp_flags = ["-fopenmp"]
+            elif self.settings.compiler == "apple-clang":
+                openmp_flags = ["-Xpreprocessor", "-fopenmp"]
+            else:
+                openmp_flags = []
+            self.cpp_info.components["core"].exelinkflags = openmp_flags
+            self.cpp_info.components["core"].sharedlinkflags = openmp_flags
+        # lsr component
+        if self.options.with_lsr_bindings:
+            self.cpp_info.components["lsr"].names["pkg_config"] = "soxr-lsr"
+            self.cpp_info.components["lsr"].libs = ["soxr-lsr"]
+            if self.settings.os == "Windows" and self.options.shared:
+                self.cpp_info.components["lsr"].defines.append("SOXR_DLL")
+            self.cpp_info.components["lsr"].requires = ["core"]

recipes/soxr/all/patches/cmake-source-dir.patch

@@ -0,0 +1,12 @@
+Patch required for proper resolving of CMake modules when using the CMake conan helper wrapper.
+--- CMakeLists.txt
++++ CMakeLists.txt
+@@ -84,7 +84,7 @@ mark_as_advanced (WITH_HI_PREC_CLOCK WITH_FLOAT_STD_PREC_CLOCK
+
+ # Introspection:
+
+-list (APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)
++list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules)
+
+ include (CheckFunctionExists)
+ include (CheckIncludeFiles)

recipes/soxr/all/patches/findpackage-openmp.patch

@@ -0,0 +1,15 @@
+Adds the REQUIRED flag to find_package for OpenMP so that
+we can be sure in the conanfile that if with_openmp is set
+that OpenMP is indeed used. This is important since we need to add
+compiler flags in package_info() in this case.
+--- CMakeLists.txt	
++++ CMakeLists.txt
+@@ -105,7 +105,7 @@ if (${BUILD_EXAMPLES})
+ endif ()
+
+ if (WITH_OPENMP)
+-  find_package (OpenMP)
++  find_package (OpenMP REQUIRED)
+   if (OPENMP_FOUND)
+     set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
+     set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")

recipes/soxr/all/test_package/CMakeLists.txt

@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.1)
+project(test_package C)
+
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup(TARGETS)
+
+find_package(soxr CONFIG REQUIRED)
+
+add_executable(test_package_core test_package_core.c)
+target_link_libraries(test_package_core soxr::core)
+
+if(TARGET soxr::lsr)
+    add_executable(test_package_lsr test_package_lsr.c)
+    target_link_libraries(test_package_lsr soxr::lsr)
+endif()

recipes/soxr/all/test_package/conanfile.py

@@ -0,0 +1,21 @@
+import os
+from conans import ConanFile, CMake, tools
+
+class TestPackageConan(ConanFile):
+    settings = "os", "compiler", "build_type", "arch"
+    generators = "cmake", "cmake_find_package_multi"
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if not tools.cross_building(self):
+            # core component
+            bin_path = os.path.join("bin", "test_package_core")
+            self.run(bin_path, run_environment=True)
+            # lsr component
+            if self.options["soxr"].with_lsr_bindings:
+                bin_path = os.path.join("bin", "test_package_lsr")
+                self.run(bin_path, run_environment=True)

recipes/soxr/all/test_package/test_package_core.c

@@ -0,0 +1,7 @@
+#include <soxr.h>
+#include <stdio.h>
+
+int main() {
+    printf("soxr version: %s\n", soxr_version());
+    return 0;
+}

recipes/soxr/all/test_package/test_package_lsr.c

@@ -0,0 +1,7 @@
+#include <soxr-lsr.h>
+#include <stdio.h>
+
+int main() {
+    printf("soxr-lsr version: %s\n", src_get_version());
+    return 0;
+}

recipes/soxr/config.yml

@@ -0,0 +1,3 @@
+versions:
+  "0.1.3":
+    folder: all