[DO-971] ffmpeg recipe with requirements (!9)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/9

recipes/libaom-av1/all/conanfile.py

@@ -0,0 +1,102 @@
+from conan import ConanFile
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
+from conan.tools.env import VirtualBuildEnv
+from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, rmdir
+from conan.tools.scm import Version
+import os
+
+required_conan_version = ">=1.53.0"
+
+
+class LibaomAv1Conan(ConanFile):
+    name = "libaom-av1"
+    description = "AV1 Codec Library"
+    topics = ("av1", "codec", "video", "encoding", "decoding")
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://aomedia.googlesource.com/aom"
+    license = "BSD-2-Clause"
+
+    package_type = "library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+        "assembly": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+        "assembly": False,
+    }
+
+    @property
+    def _settings_build(self):
+        return getattr(self, "settings_build", self.settings)
+
+    def export_sources(self):
+        export_conandata_patches(self)
+
+    def config_options(self):
+        if self.settings.os == "Windows":
+            del self.options.fPIC
+        if self.settings.arch not in ("x86", "x86_64"):
+            del self.options.assembly
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+        self.settings.rm_safe("compiler.cppstd")
+        self.settings.rm_safe("compiler.libcxx")
+
+    def build_requirements(self):
+        if self.options.get_safe("assembly", False):
+            self.tool_requires("nasm/[>=2.15.05]")
+        if self._settings_build.os == "Windows":
+            self.tool_requires("strawberryperl/5.32.1.1")
+
+    def layout(self):
+        cmake_layout(self, src_folder="src")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=Version(self.version) >= "3.3.0")
+
+    def generate(self):
+        env = VirtualBuildEnv(self)
+        env.generate()
+        tc = CMakeToolchain(self)
+        tc.variables["ENABLE_EXAMPLES"] = False
+        tc.variables["ENABLE_TESTS"] = False
+        tc.variables["ENABLE_DOCS"] = False
+        tc.variables["ENABLE_TOOLS"] = False
+        if not self.options.get_safe("assembly", False):
+            # make non-assembly build
+            tc.variables["AOM_TARGET_CPU"] = "generic"
+        # libyuv is used for examples, tests and non-essential 'dump_obu' tool so it is disabled
+        # required to be 1/0 instead of False
+        tc.variables["CONFIG_LIBYUV"] = 0
+        # webm is not yet packaged
+        tc.variables["CONFIG_WEBM_IO"] = 0
+        # Requires C99 or higher
+        tc.variables["CMAKE_C_STANDARD"] = "99"
+        tc.generate()
+
+    def build(self):
+        apply_conandata_patches(self)
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def package(self):
+        copy(self, "LICENSE", src=self.source_folder, dst=os.path.join(self.package_folder, "licenses"))
+        cmake = CMake(self)
+        cmake.install()
+        rmdir(self, os.path.join(self.package_folder, "lib", "pkgconfig"))
+
+    def package_info(self):
+        self.cpp_info.set_property("pkg_config_name", "aom")
+        lib = "aom"
+        if Version(self.version) >= "3.8.0" and self.settings.os == "Windows" and self.options.shared:
+            lib = "aom_dll"
+        self.cpp_info.libs = [lib]
+        if self.settings.os in ("FreeBSD", "Linux"):
+            self.cpp_info.system_libs = ["pthread", "m"]