Enable static build of DeepSpeech iOS framework

Set up additional `deepspeech_ios` target with static build steps Xcode config: lock swift version at 5.0, bundle framework rather than dynamic lib, never strip swift symbols, add framework search paths, and bring in lstdc++ Runtime schema config: disable the main thread checker as this causes trouble with the static build Update model versions to 0.9.1 Remove libdeepspeech.so from example app bundling steps Swift lib embed settings that are somehow essential Attempt to adjust taskcluster build steps Add a basic podspec Add framework to gitignore Fix podspec version code Attempt to fix taskcluster unzip step Switch deepspeech targets for iOS build Try doing this unzip in one step Remove packaging steps for unneeded stuff because libdeepspeech.so is no longer a thing here. I suppose we could add a step to package the iOS static lib instead. Fix podspec version Set up podspec relative assuming a clone from the repo root Remove space in iOS package step Fix buildfile nit Link stdc++ in explicitly with iOS build only Revert "Remove space in iOS package step" This reverts commit 3e1922ea370c110f9854ae7e97101f2ea00f55c6.
purplesparkle · Dec 4, 2020 · 32b6067 · 32b6067
1 parent bcfc748
commit 32b6067
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Showing 10 changed files with 61 additions and 18 deletions.
diff --git a/.gitignore b/.gitignore
@@ -38,3 +38,4 @@ doc/xml-c
 doc/xml-java
 doc/xml-dotnet
 convert_graphdef_memmapped_format
+native_client/swift/deepspeech_ios.framework/deepspeech_ios
diff --git a/native_client/BUILD b/native_client/BUILD
@@ -3,6 +3,7 @@
 load("@org_tensorflow//tensorflow:tensorflow.bzl", "tf_cc_shared_object")
 load("@local_config_cuda//cuda:build_defs.bzl", "if_cuda")
 load("@com_github_nelhage_rules_boost//:boost/boost.bzl", "boost_deps")
+load("@build_bazel_rules_apple//apple:ios.bzl", "ios_static_framework")
 
 load(
     "@org_tensorflow//tensorflow/lite:build_def.bzl",
@@ -110,8 +111,8 @@ cc_library(
     ],
 )
 
-tf_cc_shared_object(
-    name = "libdeepspeech.so",
+cc_library(
+    name = "deepspeech_bundle",
     srcs = [
         "deepspeech.cc",
         "deepspeech.h",
@@ -203,6 +204,19 @@ tf_cc_shared_object(
     ]) + [":decoder"],
 )
 
+tf_cc_shared_object(
+    name = "libdeepspeech.so",
+    deps = [":deepspeech_bundle"],
+)
+
+ios_static_framework(
+    name = "deepspeech_ios",
+    deps = [":deepspeech_bundle"],
+    families = ["iphone", "ipad"],
+    minimum_os_version = "9.0",
+    linkopts = ["-lstdc++"],
+)
+
 genrule(
     name = "libdeepspeech_so_dsym",
     srcs = [":libdeepspeech.so"],

diff --git a/native_client/swift/deepspeech-ios.podspec b/native_client/swift/deepspeech-ios.podspec
@@ -0,0 +1,19 @@
+# Pull in version from outside
+version = File.read(File.join(__dir__, "../../training/deepspeech_training/VERSION")).split("\n")[0]
+
+Pod::Spec.new do |s|
+  s.name         = "deepspeech-ios"
+  s.version      = version
+  s.summary      = "DeepSpeech"
+  s.homepage     = "https://github.com/mozilla/DeepSpeech"
+  s.license      = "Mozilla Public License 2.0"
+  s.authors      = "Mozilla et al."
+
+  s.platforms    = { :ios => "9.0" }
+  s.source       = { :git => "https://github.com/mozilla/DeepSpeech.git", :tag => "v#{s.version}" }
+
+  # Assuming taskcluster build location. Depending on your Xcode setup, this might be in
+  # build/Release-iphoneos/deepspeech_ios.framework instead.
+  s.vendored_frameworks = "native_client/swift/DerivedData/Build/Products/Release-iphoneos/deepspeech_ios.framework"
+  s.source_files = "native_client/swift/deepspeech_ios/**/*.{h,m,mm,swift}"
+end
diff --git a/native_client/swift/deepspeech_ios.xcodeproj/project.pbxproj b/native_client/swift/deepspeech_ios.xcodeproj/project.pbxproj
@@ -11,7 +11,7 @@
 		505B137224960D550007DADA /* deepspeech_ios.h in Headers */ = {isa = PBXBuildFile; fileRef = 505B136424960D550007DADA /* deepspeech_ios.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		505B137D24961AF20007DADA /* deepspeech.h in Headers */ = {isa = PBXBuildFile; fileRef = 505B137C24961AF20007DADA /* deepspeech.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		505B137F24961BA70007DADA /* DeepSpeech.swift in Sources */ = {isa = PBXBuildFile; fileRef = 505B137E24961BA70007DADA /* DeepSpeech.swift */; };
-		507CD39B24B61FA100409BBB /* libdeepspeech.so in Frameworks */ = {isa = PBXBuildFile; fileRef = 507CD39A24B61FA100409BBB /* libdeepspeech.so */; };
+		AD2FD0F925678F8800314F2E /* deepspeech_ios.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AD2FD0F825678F8800314F2E /* deepspeech_ios.framework */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -45,15 +45,15 @@
 		505B137B249619C90007DADA /* deepspeech_ios.modulemap */ = {isa = PBXFileReference; lastKnownFileType = "sourcecode.module-map"; path = deepspeech_ios.modulemap; sourceTree = "<group>"; };
 		505B137C24961AF20007DADA /* deepspeech.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = deepspeech.h; path = ../../deepspeech.h; sourceTree = "<group>"; };
 		505B137E24961BA70007DADA /* DeepSpeech.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeepSpeech.swift; sourceTree = "<group>"; };
-		507CD39A24B61FA100409BBB /* libdeepspeech.so */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; path = libdeepspeech.so; sourceTree = "<group>"; };
+		AD2FD0F825678F8800314F2E /* deepspeech_ios.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; path = deepspeech_ios.framework; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
 		505B135E24960D550007DADA /* Frameworks */ = {
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				507CD39B24B61FA100409BBB /* libdeepspeech.so in Frameworks */,
+				AD2FD0F925678F8800314F2E /* deepspeech_ios.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -101,7 +101,7 @@
 		505B1380249620C60007DADA /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
-				507CD39A24B61FA100409BBB /* libdeepspeech.so */,
+				AD2FD0F825678F8800314F2E /* deepspeech_ios.framework */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -243,6 +243,7 @@
 		505B137324960D550007DADA /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO;
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
@@ -296,8 +297,10 @@
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
+				STRIP_SWIFT_SYMBOLS = NO;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -306,6 +309,7 @@
 		505B137424960D550007DADA /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO;
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
@@ -352,8 +356,10 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = iphoneos;
+				STRIP_SWIFT_SYMBOLS = NO;
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				SWIFT_VERSION = 5.0;
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -372,6 +378,10 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
 				INFOPLIST_FILE = deepspeech_ios/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -386,6 +396,7 @@
 				);
 				MODULEMAP_FILE = deepspeech_ios/deepspeech_ios.modulemap;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.mozilla.deepspeech-ios";
+				OTHER_LDFLAGS = "-lstdc++";
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -406,6 +417,10 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
 				INFOPLIST_FILE = deepspeech_ios/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -420,6 +435,7 @@
 				);
 				MODULEMAP_FILE = deepspeech_ios/deepspeech_ios.modulemap;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.mozilla.deepspeech-ios";
+				OTHER_LDFLAGS = "-lstdc++";
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
 				SWIFT_VERSION = 5.0;

diff --git a/native_client/swift/deepspeech_ios.xcodeproj/xcshareddata/xcschemes/deepspeech_ios.xcscheme b/native_client/swift/deepspeech_ios.xcodeproj/xcshareddata/xcschemes/deepspeech_ios.xcscheme
@@ -44,6 +44,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      disableMainThreadChecker = "YES"
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"

diff --git a/native_client/swift/deepspeech_ios_test.xcodeproj/project.pbxproj b/native_client/swift/deepspeech_ios_test.xcodeproj/project.pbxproj
@@ -11,8 +11,6 @@
 		504EC34424CF4EFD0073C22E /* AudioContext.swift in Sources */ = {isa = PBXBuildFile; fileRef = 504EC34224CF4EFD0073C22E /* AudioContext.swift */; };
 		504EC34524CF4F4F0073C22E /* deepspeech_ios.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 507CD3A024B61FE400409BBB /* deepspeech_ios.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		507CD3A124B61FE400409BBB /* deepspeech_ios.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 507CD3A024B61FE400409BBB /* deepspeech_ios.framework */; };
-		507CD3A324B61FEB00409BBB /* libdeepspeech.so in Frameworks */ = {isa = PBXBuildFile; fileRef = 507CD3A224B61FEA00409BBB /* libdeepspeech.so */; };
-		507CD3A424B61FFC00409BBB /* libdeepspeech.so in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 507CD3A224B61FEA00409BBB /* libdeepspeech.so */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }; };
 		50F787F32497683900D52237 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50F787F22497683900D52237 /* AppDelegate.swift */; };
 		50F787F52497683900D52237 /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50F787F42497683900D52237 /* SceneDelegate.swift */; };
 		50F787F72497683900D52237 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50F787F62497683900D52237 /* ContentView.swift */; };
@@ -48,7 +46,6 @@
 			dstSubfolderSpec = 10;
 			files = (
 				504EC34524CF4F4F0073C22E /* deepspeech_ios.framework in Embed Frameworks */,
-				507CD3A424B61FFC00409BBB /* libdeepspeech.so in Embed Frameworks */,
 			);
 			name = "Embed Frameworks";
 			runOnlyForDeploymentPostprocessing = 0;
@@ -81,7 +78,6 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				507CD3A324B61FEB00409BBB /* libdeepspeech.so in Frameworks */,
 				507CD3A124B61FE400409BBB /* deepspeech_ios.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

diff --git a/native_client/swift/deepspeech_ios_test/SpeechRecognitionImpl.swift b/native_client/swift/deepspeech_ios_test/SpeechRecognitionImpl.swift
@@ -26,8 +26,8 @@ class SpeechRecognitionImpl : NSObject, AVCaptureAudioDataOutputSampleBufferDele
     private var audioData = Data()
 
     override init() {
-        let modelPath = Bundle.main.path(forResource: "deepspeech-0.7.4-models", ofType: "tflite")!
-        let scorerPath = Bundle.main.path(forResource: "deepspeech-0.7.4-models", ofType: "scorer")!
+        let modelPath = Bundle.main.path(forResource: "deepspeech-0.9.1-models", ofType: "tflite")!
+        let scorerPath = Bundle.main.path(forResource: "deepspeech-0.9.1-models", ofType: "scorer")!
 
         model = try! DeepSpeechModel(modelPath: modelPath)
         try! model.enableExternalScorer(scorerPath: scorerPath)

diff --git a/taskcluster/ios-build.sh b/taskcluster/ios-build.sh
@@ -9,7 +9,7 @@ source $(dirname "$0")/tc-tests-utils.sh
 source $(dirname "$0")/tf_tc-vars.sh
 
 BAZEL_TARGETS="
-//native_client:libdeepspeech.so
+//native_client:deepspeech_ios
 "
 
 if [ "${arch}" = "--arm64" ]; then

diff --git a/taskcluster/ios-package.sh b/taskcluster/ios-package.sh
@@ -10,10 +10,6 @@ mkdir -p ${TASKCLUSTER_ARTIFACTS} || true
 
 cp ${DS_ROOT_TASK}/DeepSpeech/ds/tensorflow/bazel*.log ${TASKCLUSTER_ARTIFACTS}/
 
-package_native_client "native_client.tar.xz"
-
-package_libdeepspeech_as_zip "libdeepspeech.zip"
-
 case $arch in
 "--x86_64")
   release_folder="Release-iphonesimulator"

diff --git a/taskcluster/tc-build-utils.sh b/taskcluster/tc-build-utils.sh
@@ -340,7 +340,7 @@ do_nuget_build()
 do_deepspeech_ios_framework_build()
 {
   arch=$1
-  cp ${DS_TFDIR}/bazel-bin/native_client/libdeepspeech.so ${DS_DSDIR}/native_client/swift/libdeepspeech.so
+  unzip ${DS_TFDIR}/bazel-bin/native_client/deepspeech_ios.zip -d ${DS_DSDIR}/native_client/swift
   cd ${DS_DSDIR}/native_client/swift
   case $arch in
   "--x86_64")