[alsa,fdk-aac,ffmpeg,libsrt,snappy,x265] Code cleanup, fix and use pk…

…g-config (microsoft#39077)

- Setup and use pkg-config for ffmpeg dependencies.
microsoft#38011 (comment).
- Export actual c++ link libraries for fdk-aac via pkg-config. (Same
pattern as lerc, geos.)
- Rectify link libraries in pkg-config  for alsa, libsrt, snappy, x265.
- Burn-in dllimport for libsrt and x265.
- Pass detected STRIP to ffmpeg. Fixes
microsoft#36852.

ports/alsa/libdl.diff

@@ -0,0 +1,12 @@
+diff --git a/configure.ac b/configure.ac
+index 7a152a4..324adf8 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -261,6 +261,7 @@ HAVE_LIBDL=
+ if test "$have_libdl" = "yes"; then
+   AC_SEARCH_LIBS([dlsym], [dl], [HAVE_LIBDL="yes"])
+   if test "$HAVE_LIBDL" = "yes" ; then
++    ALSA_DEPLIBS="$ALSA_DEPLIBS -ldl"
+     AC_DEFINE([HAVE_LIBDL], 1, [Have libdl])
+   fi
+ else

ports/alsa/portfile.cmake

@@ -25,6 +25,7 @@ vcpkg_from_github(
     HEAD_REF master
     PATCHES
         fix-plugin-dir.patch
+        libdl.diff
         ${ALSA_VERSION_SCRIPT_PATCH}
 )
 

ports/alsa/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "alsa",
   "version": "1.2.11",
-  "port-version": 1,
+  "port-version": 2,
   "description": "The Advanced Linux Sound Architecture (ALSA) - library",
   "homepage": "https://www.alsa-project.org/",
   "license": "LGPL-2.1-or-later",

ports/fdk-aac/cxx-linkage-pkgconfig.patch

@@ -0,0 +1,20 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 4db8c7e..da3297c 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -528,6 +528,15 @@ if(FDK_AAC_INSTALL_PKGCONFIG_MODULE)
+       set(LIBS_PUBLIC "-lm")
+     endif()
+   endif()
++  foreach(lib IN LISTS CMAKE_CXX_IMPLICIT_LINK_LIBRARIES)
++    if(lib IN_LIST CMAKE_C_IMPLICIT_LINK_LIBRARIES)
++      continue()
++    elseif(EXISTS "${lib}")
++      string(APPEND LIBS_PRIVATE " ${CMAKE_LINK_LIBRARY_FILE_FLAG}${lib}")
++    else()
++      string(APPEND LIBS_PRIVATE " ${CMAKE_LINK_LIBRARY_FLAG}${lib}")
++    endif()
++  endforeach()
+   configure_file(fdk-aac.pc.in fdk-aac.pc @ONLY)
+   install(
+     FILES

ports/fdk-aac/portfile.cmake

@@ -3,34 +3,43 @@ vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS FEATURES
         he-aac HE_AAC
 )
 
+set(legal_notes "NOTICE")
 if(HE_AAC)
     vcpkg_from_github(
         REPO mstorsjo/fdk-aac
         REF v2.0.2
         SHA512 616207e85035d1659a2b7808ca6ec02ef53c1c4b39eb280fe861f82a4cf548e5db2ac381c496bad37dfc2b8c6677fe704d9fd8449e43d1f93d3e636239e0191b
         HEAD_REF master
         OUT_SOURCE_PATH SOURCE_PATH
+        PATCHES
+            cxx-linkage-pkgconfig.patch
     )
 else()
+    list(PREPEND legal_notes "README.fedora")
     vcpkg_from_gitlab(
         GITLAB_URL https://gitlab.freedesktop.org/
         REPO wtaymans/fdk-aac-stripped
-        REF 585981a49f2186b0d2e47c64bf6b5abf539395f8 # corresponds to v2.0.2 tag in mstorsjo/fdk-aac GitHub repository
+        REF 529b87452cd33d45e1d0a5066d20b64f10b38845 # corresponds to v2.0.2 tag in mstorsjo/fdk-aac GitHub repository
         HEAD_REF stripped4
-        SHA512 e0e56396ed0be427302ed4b54fc6e8dc522a172c288b7c1ec40cc3a9ceb13518ca7bbb874bc71b88b2a91e0bbbe4ad0bab6910efa1db63d91e6370976641bac4
+        SHA512 0c37f8fd1bd0e817d2b3970138bef5b2a7a3150ab1a772273c8f5cba09be04afa2f31780f0ea063dd786a71844aa4cb5821349a4bcc5ebe70e827c3561eda2a9
         OUT_SOURCE_PATH SOURCE_PATH
+        PATCHES
+            cxx-linkage-pkgconfig.patch
     )
 endif()
 
 vcpkg_cmake_configure(
-    SOURCE_PATH ${SOURCE_PATH}
-    OPTIONS_RELEASE -DBUILD_PROGRAMS=OFF
+    SOURCE_PATH "${SOURCE_PATH}"
+    OPTIONS
+        -DBUILD_PROGRAMS=OFF
 )
 
 vcpkg_cmake_install()
 vcpkg_cmake_config_fixup(CONFIG_PATH "lib/cmake/${PORT}")
 vcpkg_fixup_pkgconfig()
 vcpkg_copy_pdbs()
-vcpkg_copy_tool_dependencies("${CURRENT_PACKAGES_DIR}/tools/${PORT}")
-vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/NOTICE")
+
 file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
+
+list(TRANSFORM legal_notes PREPEND "${SOURCE_PATH}/")
+vcpkg_install_copyright(FILE_LIST ${legal_notes})

ports/fdk-aac/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "fdk-aac",
   "version-semver": "2.0.2",
-  "port-version": 3,
+  "port-version": 4,
   "description": "A standalone Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android. Uses a fork without HE-AAC, HE-AACv2, or xHE-AAC support to avoid patent licensing and GPL compatibility issues when built without the he-aac option.",
   "homepage": "https://gitlab.freedesktop.org/wtaymans/fdk-aac-stripped",
   "license": "FDK-AAC",

ports/ffmpeg/0006-fix-StaticFeatures.patch → ports/ffmpeg/0004-dependencies.patch

@@ -1,8 +1,15 @@
 diff --git a/configure b/configure
-index 6d3f31fc95..f5f4a769cc 100644
---- a/configure
-+++ b/configure
-@@ -6761,7 +6761,8 @@ if enabled libmfx; then
+index 3243e23021..6d3f31fc95 100755
+@@ -6630,7 +6630,7 @@ fi
+
+ enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
+                    check_lib zlib   zlib.h      zlibVersion    -lz; }
+-enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
++enabled bzlib && require_pkg_config bzlib bzip2 bzlib.h BZ2_bzlibVersion
+ enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
+
+ enabled zlib && test_exec $zlib_extralibs <<EOF && enable zlib_gzip
+@@ -6757,7 +6757,8 @@ if enabled libmfx; then
  fi
 
  enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
@@ -12,16 +19,18 @@ index 6d3f31fc95..f5f4a769cc 100644
  enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine ||
                                 require libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine -lmysofa $zlib_extralibs; }
  enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei -lnppif ||
-@@ -6805,7 +6806,7 @@ if enabled debug_configure; then
- else
-     enabled libsnappy     && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
- fi
+@@ -6793,8 +6794,8 @@ enabled libshaderc        && require_pkg_config spirv_compiler "shaderc >= 2019.
+ enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
+ enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
+                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
+-enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
 -enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
-+enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr -lm
++enabled libsnappy         && require_pkg_config libsnappy snappy snappy-c.h snappy_compress
++enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr $libm_extralibs
  enabled libssh            && require_pkg_config libssh "libssh >= 0.6.0" libssh/sftp.h sftp_init
  enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
  enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
-@@ -6888,6 +6889,8 @@ enabled openal            && { check_pkg_config openal "openal >= 1.1" "AL/al.h"
+@@ -6884,6 +6885,8 @@ enabled openal            && { check_pkg_config openal "openal >= 1.1" "AL/al.h"
  enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
                                 check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
                                 check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
@@ -30,20 +39,16 @@ index 6d3f31fc95..f5f4a769cc 100644
                                 die "ERROR: opencl not found"; } &&
                               { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
                                 test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
-@@ -6914,6 +6917,7 @@ enabled openssl           && { { check_pkg_config openssl "openssl >= 3.0.0" ope
-                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
-                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
-                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
-+                               check_lib openssl openssl/ssl.h OPENSSL_init_ssl -llibssl -llibcrypto -lws2_32 -lgdi32 -lcrypt32 -lAdvapi32 -lUser32||
-                                die "ERROR: openssl not found"; }
- enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
- enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
-@@ -7215,7 +7219,7 @@ enabled amf &&
- if enabled libc_iconv; then
+@@ -7208,10 +7211,10 @@ enabled amf &&
+         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x00010004001d0000"
+
+ # Funny iconv installations are not unusual, so check it after all flags have been set
+-if enabled libc_iconv; then
++if enabled libc_iconv && disabled iconv; then
      check_func_headers iconv.h iconv
  elif enabled iconv; then
 -    check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
-+    check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv || check_lib iconv iconv.h iconv -liconv -llibcharset
++    check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv || check_lib iconv iconv.h iconv -liconv -lcharset
  fi
 
  enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

ports/ffmpeg/0007-fix-lib-naming.patch

@@ -2,15 +2,11 @@ diff --git a/configure b/configure
 index d6c4388..75b96c3 100644
 --- a/configure
 +++ b/configure
-@@ -4378,6 +4378,11 @@ msvc_common_flags(){
+@@ -4378,6 +4378,7 @@ msvc_common_flags(){
              -march=*)             ;;
              -lz)                  echo zlib.lib ;;
              -lx264)               echo libx264.lib ;;
-+            -lx265)               echo libx265.lib ;;
 +            -lmp3lame)            echo libmp3lame.lib ;;
-+            -liconv)              echo iconv.lib ;;
-+            -llibcharset)         echo charset.lib ;;
-+            -lm)                  ;;
              -lstdc++)             ;;
              -l*)                  echo ${flag#-l}.lib ;;
              -LARGEADDRESSAWARE)   echo $flag ;;