ObjC: Add support for injectable native audio and video codecs

webrtc/sdk/BUILD.gn

 # Copyright 2016 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("../webrtc.gni")
 if (is_ios) {
@@ skipping 292 matching lines @@
       if (rtc_build_libyuv) {
         deps += [ "$rtc_libyuv_dir" ]
         public_deps = [
           "$rtc_libyuv_dir",
         ]
       }
     }
 
     rtc_static_library("objc_peerconnectionfactory") {
       sources = [
+        "objc/Framework/Classes/PeerConnection/RTCPeerConnectionFactory+Native.h",
         "objc/Framework/Classes/PeerConnection/RTCPeerConnectionFactory+Private.h",
         "objc/Framework/Classes/PeerConnection/RTCPeerConnectionFactory.mm",
         "objc/Framework/Classes/PeerConnection/RTCVideoCodecH264.mm",
       ]
 
       public_configs = [ ":objc_common_config" ]
 
       if (!build_with_chromium && is_clang) {
         # Suppress warnings from the Chromium Clang plugin
         # (bugs.webrtc.org/163).
         suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
       }
 
       deps = [
         ":objc_common",
         ":objc_corevideoframebuffer",
         ":objc_peerconnectionfactory_base",
         ":objc_video",
         ":objc_videotoolbox",
         ":objc_videotracksource",
         "../api:video_frame_api",
+        "../api/audio_codecs:builtin_audio_decoder_factory",
+        "../api/audio_codecs:builtin_audio_encoder_factory",
         "../api/video_codecs:video_codecs_api",
         "../media:rtc_audio_video",
         "../media:rtc_media_base",
         "../pc:create_pc_factory",
         "../pc:peerconnection",
         "../rtc_base:rtc_base",
         "../system_wrappers:field_trial_api",
       ]
     }
 
     # Build the PeerConnectionFactory without audio/video support.
     # This target depends on the objc_peeerconnectionfactory_base which still
     # includes some audio/video related objects such as RTCAudioSource because
     # these objects are just thin wrappers of native C++ interfaces required
     # when implementing webrtc::PeerConnectionFactoryInterface and
     # webrtc::PeerConnectionInterface.
     # The applications which only use WebRTC DataChannel can depend on this
     # target instead of rtc_sdk_objc.
     rtc_static_library("objc_peerconnectionfactory_no_media") {
       defines = [ "HAVE_NO_MEDIA" ]
 
       sources = [
+        "objc/Framework/Classes/PeerConnection/RTCPeerConnectionFactory+Native.h",
         "objc/Framework/Classes/PeerConnection/RTCPeerConnectionFactory+Private.h",
         "objc/Framework/Classes/PeerConnection/RTCPeerConnectionFactory.mm",
       ]
 
       public_configs = [ ":objc_common_config" ]
 
       if (!build_with_chromium && is_clang) {
         # Suppress warnings from the Chromium Clang plugin
         # (bugs.webrtc.org/163).
         suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
@@ skipping 379 matching lines @@
         public_deps = [
           "$rtc_libyuv_dir",
         ]
       } else {
         # Need to add a directory normally exported by libyuv.
         include_dirs = [ "$rtc_libyuv_dir/include" ]
       }
     }
   }
 }