Fix some issue to enable HEVC on iOS.

- Add some missing classes.
- Define OWT_USE_H265 when rtc_use_h265 is true.

BUILD.gn

@@ -206,6 +206,8 @@ config("common_inherited_config") {
 
   if (!rtc_use_h265) {
     defines += [ "DISABLE_H265" ]
+  } else {
+    defines += [ "OWT_USE_H265" ]
   }
 }
 

modules/rtp_rtcp/BUILD.gn

@@ -206,6 +206,8 @@ rtc_static_library("rtp_rtcp") {
 
   if (!rtc_use_h265) {
     defines += ["DISABLE_H265"]
+  } else {
+    defines += [ "OWT_USE_H265" ]
   }
 
   deps = [

sdk/BUILD.gn

@@ -556,6 +556,16 @@ if (is_ios || is_mac) {
         "objc/components/video_codec/RTCH264ProfileLevelId.h",
         "objc/components/video_codec/RTCH264ProfileLevelId.mm",
       ]
+      if (rtc_use_h265) {
+        sources += [
+          # TODO: Split this file.
+          "objc/Framework/Headers/WebRTC/RTCVideoCodecH265.h",
+          "objc/components/video_codec/RTCCodecSpecificInfoH265+Private.h",
+          "objc/components/video_codec/RTCCodecSpecificInfoH265.h",
+          "objc/components/video_codec/RTCCodecSpecificInfoH265.mm",
+          "objc/components/video_codec/RTCVideoCodecH265.mm",
+        ]
+      }
       if (is_ios) {
         sources += [
           "objc/components/video_codec/UIDevice+H264Profile.h",
@@ -1631,13 +1641,16 @@ if (is_ios || is_mac) {
         "objc/components/video_codec/RTCVideoEncoderFactoryH264.m",
         "objc/components/video_codec/RTCVideoEncoderH264.h",
         "objc/components/video_codec/RTCVideoEncoderH264.mm",
-        "objc/Framework/Headers/WebRTC/RTCVideoCodecH265.h",
-        "objc/components/video_codec/RTCVideoEncoderH265.mm",
-        "objc/components/video_codec/RTCVideoCodecH265.mm",
-        "objc/components/video_codec/RTCVideoDecoderH265.h",
-        "objc/components/video_codec/RTCVideoDecoderH265.mm",
       ]
 
+      if (rtc_use_h265) {
+        sources += [
+          "objc/components/video_codec/RTCVideoDecoderH265.h",
+          "objc/components/video_codec/RTCVideoDecoderH265.mm",
+          "objc/components/video_codec/RTCVideoEncoderH265.mm",
+        ]
+      }
+
       configs += [
         "..:common_objc",
         ":used_from_extension",

sdk/objc/Framework/Headers/WebRTC/RTCVideoCodecH265.h

@@ -15,10 +15,7 @@
 #import <WebRTC/RTCMacros.h>
 #import <WebRTC/RTCVideoCodecFactory.h>
 
-RTC_OBJC_EXPORT
-API_AVAILABLE(ios(11.0))
-@interface RTCCodecSpecificInfoH265 : NSObject <RTCCodecSpecificInfo>
-@end
+RTC_OBJC_EXPORT extern NSString *const kRTCVideoCodecH265Name;
 
 /** Encoder. */
 RTC_OBJC_EXPORT

sdk/objc/components/video_codec/RTCCodecSpecificInfoH265+Private.h

@@ -0,0 +1,25 @@
+/*
+ *  Copyright 2017 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.
+ */
+/* This file is borrowed from sdk/objc/components/video_codec/RTCCodecSpecificInfoH264+Private.h */
+
+#import "RTCCodecSpecificInfoH265.h"
+
+#include "modules/video_coding/include/video_codec_interface.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/* Interfaces for converting to/from internal C++ formats. */
+@interface RTCCodecSpecificInfoH265 ()
+
+- (webrtc::CodecSpecificInfo)nativeCodecSpecificInfo;
+
+@end
+
+NS_ASSUME_NONNULL_END

sdk/objc/components/video_codec/RTCCodecSpecificInfoH265.h

@@ -0,0 +1,28 @@
+/*
+ *  Copyright 2017 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.
+ */
+/* This file is borrowed from sdk/objc/components/video_codec/RTCCodecSpecificInfoH264.h. */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCCodecSpecificInfo.h"
+#import "RTCMacros.h"
+
+/** Class for H264 specific config. */
+typedef NS_ENUM(NSUInteger, RTCH265PacketizationMode) {
+  RTCH265PacketizationModeNonInterleaved = 0,  // Mode 1 - STAP-A, FU-A is allowed
+  RTCH265PacketizationModeSingleNalUnit        // Mode 0 - only single NALU allowed
+};
+
+RTC_OBJC_EXPORT
+@interface RTCCodecSpecificInfoH265 : NSObject <RTCCodecSpecificInfo>
+
+@property(nonatomic, assign) RTCH265PacketizationMode packetizationMode;
+
+@end

sdk/objc/components/video_codec/RTCCodecSpecificInfoH265.mm

@@ -0,0 +1,28 @@
+/*
+ *  Copyright 2017 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.
+ */
+ /* This file is borrowed from sdk/objc/components/video_codec/RTCCodecSpecificInfoH264.mm */
+
+#import "RTCCodecSpecificInfoH265+Private.h"
+
+// H265 specific settings.
+@implementation RTCCodecSpecificInfoH265
+
+@synthesize packetizationMode = _packetizationMode;
+
+- (webrtc::CodecSpecificInfo)nativeCodecSpecificInfo {
+  webrtc::CodecSpecificInfo codecSpecificInfo;
+  codecSpecificInfo.codecType = webrtc::kVideoCodecH265;
+  codecSpecificInfo.codecSpecific.H265.packetization_mode =
+      (webrtc::H265PacketizationMode)_packetizationMode;
+
+  return codecSpecificInfo;
+}
+
+@end

sdk/objc/components/video_codec/RTCVideoCodecH265.mm

@@ -11,22 +11,20 @@
 /* This file is borrowed from
  * webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCVideoCodecH265.mm */
 
+#import "WebRTC/RTCVideoCodec.h"
 #import "WebRTC/RTCVideoCodecH265.h"
 
 #include <vector>
-
-#import "WebRTC/RTCVideoCodec.h"
-
+#include "media/base/media_constants.h"
 #include "rtc_base/time_utils.h"
 #include "system_wrappers/include/field_trial.h"
 
+NSString *const kRTCVideoCodecH265Name = @(cricket::kH265CodecName);
+
 static NSString* kH265CodecName = @"H265";
 // TODO(jianjunz): This is value is not correct.
 static NSString* kLevel31Main = @"4d001f";
 
-@implementation RTCCodecSpecificInfoH265
-@end
-
 // Encoder factory.
 @implementation RTCVideoEncoderFactoryH265
 

sdk/objc/components/video_codec/RTCVideoEncoderH265.mm

@@ -9,17 +9,19 @@
  *
  */
 
-#import "WebRTC/RTCVideoCodecH265.h"
-
 #import <VideoToolbox/VideoToolbox.h>
-#include <vector>
-
-#if defined(WEBRTC_IOS)
-#import "helpers/UIDevice+RTCDevice.h"
-#endif
+#import "RTCCodecSpecificInfoH265.h"
 #import "WebRTC/RTCVideoCodec.h"
+#import "WebRTC/RTCVideoCodecH265.h"
 #import "WebRTC/RTCVideoFrame.h"
 #import "WebRTC/RTCVideoFrameBuffer.h"
+#import "helpers.h"
+#import "sdk/objc/Framework/Classes/PeerConnection/RTCVideoCodec+Private.h"
+#if defined(WEBRTC_IOS)
+#import "helpers/UIDevice+RTCDevice.h"
+#endif
+
+#include <vector>
 #include "common_video/h264/profile_level_id.h"
 #include "common_video/include/bitrate_adjuster.h"
 #include "libyuv/convert_from.h"
@@ -28,8 +30,6 @@
 #include "rtc_base/buffer.h"
 #include "rtc_base/logging.h"
 #include "rtc_base/time_utils.h"
-#import "sdk/objc/Framework/Classes/PeerConnection/RTCVideoCodec+Private.h"
-#import "helpers.h"
 #include "sdk/objc/Framework/Classes/VideoToolbox/nalu_rewriter.h"
 #include "system_wrappers/include/clock.h"
 

sdk/objc/native/src/objc_video_encoder_factory.mm

@@ -15,6 +15,7 @@
 #import "base/RTCVideoEncoder.h"
 #import "base/RTCVideoEncoderFactory.h"
 #import "components/video_codec/RTCCodecSpecificInfoH264+Private.h"
+#import "components/video_codec/RTCCodecSpecificInfoH265+Private.h"
 #import "sdk/objc/api/peerconnection/RTCEncodedImage+Private.h"
 #import "sdk/objc/api/peerconnection/RTCRtpFragmentationHeader+Private.h"
 #import "sdk/objc/api/peerconnection/RTCVideoCodecInfo+Private.h"
@@ -62,6 +63,9 @@ int32_t RegisterEncodeCompleteCallback(EncodedImageCallback *callback) override
       if ([NSStringFromClass([info class]) isEqual:@"RTCCodecSpecificInfoH264"]) {
         // if ([info isKindOfClass:[RTCCodecSpecificInfoH264 class]]) {
         codecSpecificInfo = [(RTCCodecSpecificInfoH264 *)info nativeCodecSpecificInfo];
+      } else if ([NSStringFromClass([info class]) isEqual:@"RTCCodecSpecificInfoH265"]) {
+        // if ([info isKindOfClass:[RTCCodecSpecificInfoH265 class]]) {
+        codecSpecificInfo = [(RTCCodecSpecificInfoH265 *)info nativeCodecSpecificInfo];
       }
 
       std::unique_ptr<RTPFragmentationHeader> fragmentationHeader =