Support Cocoapods.

Opus.podspec

@@ -0,0 +1,110 @@
+Pod::Spec.new do |s|
+  s.name             = 'Opus'
+  s.version          = '1.0.0'
+  s.summary          = 'Swift + C implementation of the Opus audio codec.'
+  s.description      = 'Contains the Opus C core (Copus) and a Swift wrapper (Opus).'
+  s.homepage         = 'https://github.com/yourname/Opus'
+  s.license          = { :type => 'BSD', :file => 'LICENSE' }
+  s.author           = { 'Your Name' => 'your@email.com' }
+  s.source           = { :git => 'https://github.com/yourname/Opus.git', :tag => s.version.to_s }
+
+  # ✅ 支持的 Swift 版本
+  s.swift_versions   = ['5.3', '5.4', '5.5', '5.6']
+
+  # ✅ 平台
+  s.platform     = :ios, '12.0'
+  s.ios.deployment_target = '12.0'
+  s.osx.deployment_target = '10.12'
+  s.tvos.deployment_target = '12.0'
+  s.watchos.deployment_target = '6.0'
+
+  # ===========================================================
+  # 子库 1️⃣：Copus (C 层)
+  # ===========================================================
+  s.subspec 'Copus' do |ss|
+    ss.source_files = 'Sources/Copus/**/*.{c,h}'
+    ss.public_header_files = 'Sources/Copus/include/**/*.h'
+    ss.requires_arc = false
+
+    ss.pod_target_xcconfig = {
+      'HEADER_SEARCH_PATHS' => [
+	'$(PODS_TARGET_SRCROOT)/Sources/Copus',
+	'$(PODS_TARGET_SRCROOT)/Sources/Copus/celt',
+	'$(PODS_TARGET_SRCROOT)/Sources/Copus/silk',
+	'$(PODS_TARGET_SRCROOT)/Sources/Copus/silk/float'
+      ].join(' '),
+      'OTHER_CFLAGS' => [
+	'-DOPUS_BUILD',
+	'-DVAR_ARRAYS=1',
+	'-DFLOATING_POINT',
+	'-DHAVE_DLFCN_H=1',
+	'-DHAVE_INTTYPES_H=1',
+	'-DHAVE_LRINT=1',
+	'-DHAVE_LRINTF=1',
+	'-DHAVE_MEMORY_H=1',
+	'-DHAVE_STDINT_H=1',
+	'-DHAVE_STDLIB_H=1',
+	'-DHAVE_STRING_H=1',
+	'-DHAVE_STRINGS_H=1',
+	'-DHAVE_SYS_STAT_H=1',
+	'-DHAVE_SYS_TYPES_H=1',
+	'-DHAVE_UNISTD_H=1'
+      ].join(' ')
+    }
+
+    ss.exclude_files = [
+      'Sources/Copus/AUTHORS',
+      'Sources/Copus/autogen.sh',
+      'Sources/Copus/celt_headers.mk',
+      'Sources/Copus/celt_sources.mk',
+      'Sources/Copus/celt/arm',
+      'Sources/Copus/celt/dump_modes',
+      'Sources/Copus/celt/meson.build',
+      'Sources/Copus/celt/opus_custom_demo.c',
+      'Sources/Copus/celt/tests',
+      'Sources/Copus/celt/x86',
+      'Sources/Copus/ChangeLog',
+      'Sources/Copus/cmake',
+      'Sources/Copus/CMakeLists.txt',
+      'Sources/Copus/configure.ac',
+      'Sources/Copus/COPYING',
+      'Sources/Copus/doc',
+      'Sources/Copus/include/meson.build',
+      'Sources/Copus/LICENSE_PLEASE_READ.txt',
+      'Sources/Copus/m4',
+      'Sources/Copus/Makefile*',
+      'Sources/Copus/meson*',
+      'Sources/Copus/NEWS',
+      'Sources/Copus/opus_headers.mk',
+      'Sources/Copus/opus_sources.mk',
+      'Sources/Copus/opus*.pc*',
+      'Sources/Copus/README*',
+      'Sources/Copus/releases.sha2',
+      'Sources/Copus/scripts/*',
+      'Sources/Copus/silk_headers.mk',
+      'Sources/Copus/silk_sources.mk',
+      'Sources/Copus/silk/arm',
+      'Sources/Copus/silk/fixed',
+      'Sources/Copus/silk/meson.build',
+      'Sources/Copus/silk/mips',
+      'Sources/Copus/silk/tests',
+      'Sources/Copus/silk/x86',
+      'Sources/Copus/src/meson.build',
+      'Sources/Copus/src/opus_compare.c',
+      'Sources/Copus/src/opus_demo.c',
+      'Sources/Copus/src/repacketizer_demo.c',
+      'Sources/Copus/tests',
+      'Sources/Copus/training',
+      'Sources/Copus/update_version',
+      'Sources/Copus/win32'
+    ]
+  end
+
+  # ===========================================================
+  # 子库 2️⃣：Opus (Swift 层)
+  # ===========================================================
+  s.subspec 'Swift' do |ss|
+    ss.source_files = 'Sources/Opus/**/*.{swift,h}'
+    ss.dependency 'Opus/Copus'
+  end
+end

Sources/Opus/Opus.Decoder.swift

@@ -1,5 +1,7 @@
 import AVFoundation
+#if SWIFT_PACKAGE
 import Copus
+#endif
 
 extension Opus {
 	public class Decoder {

Sources/Opus/Opus.Encoder.swift

@@ -1,5 +1,7 @@
 import AVFoundation
+#if SWIFT_PACKAGE
 import Copus
+#endif
 
 extension Opus {
 	public class Encoder {

Sources/Opus/Opus.swift

@@ -1,5 +1,7 @@
 import AVFoundation
+#if SWIFT_PACKAGE
 @_exported import Copus
+#endif
 import CoreAudio
 
 public enum Opus: CaseIterable {}