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-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCCodecSpecificInfo.h24
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCEncodedImage.h52
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCEncodedImage.m29
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCI420Buffer.h22
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCLogging.h67
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCLogging.mm48
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCMacros.h62
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCMutableI420Buffer.h23
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCMutableYUVPlanarBuffer.h28
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCSSLCertificateVerifier.h25
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoCapturer.h35
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoCapturer.m24
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoCodecInfo.h36
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoCodecInfo.m65
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoDecoder.h40
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoDecoderFactory.h32
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoEncoder.h59
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderFactory.h52
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderQpThresholds.h28
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderQpThresholds.m26
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderSettings.h42
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderSettings.m25
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoFrame.h86
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoFrame.mm78
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoFrameBuffer.h40
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCVideoRenderer.h43
-rw-r--r--third_party/libwebrtc/sdk/objc/base/RTCYUVPlanarBuffer.h46
27 files changed, 1137 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCCodecSpecificInfo.h b/third_party/libwebrtc/sdk/objc/base/RTCCodecSpecificInfo.h
new file mode 100644
index 0000000000..5e7800e524
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCCodecSpecificInfo.h
@@ -0,0 +1,24 @@
+/*
+ * 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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Implement this protocol to pass codec specific info from the encoder.
+ * Corresponds to webrtc::CodecSpecificInfo.
+ */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCCodecSpecificInfo)<NSObject> @end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCEncodedImage.h b/third_party/libwebrtc/sdk/objc/base/RTCEncodedImage.h
new file mode 100644
index 0000000000..28529e5906
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCEncodedImage.h
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+#import "RTCVideoFrame.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Represents an encoded frame's type. */
+typedef NS_ENUM(NSUInteger, RTCFrameType) {
+ RTCFrameTypeEmptyFrame = 0,
+ RTCFrameTypeAudioFrameSpeech = 1,
+ RTCFrameTypeAudioFrameCN = 2,
+ RTCFrameTypeVideoFrameKey = 3,
+ RTCFrameTypeVideoFrameDelta = 4,
+};
+
+typedef NS_ENUM(NSUInteger, RTCVideoContentType) {
+ RTCVideoContentTypeUnspecified,
+ RTCVideoContentTypeScreenshare,
+};
+
+/** Represents an encoded frame. Corresponds to webrtc::EncodedImage. */
+RTC_OBJC_EXPORT
+@interface RTC_OBJC_TYPE (RTCEncodedImage) : NSObject
+
+@property(nonatomic, strong) NSData *buffer;
+@property(nonatomic, assign) int32_t encodedWidth;
+@property(nonatomic, assign) int32_t encodedHeight;
+@property(nonatomic, assign) uint32_t timeStamp;
+@property(nonatomic, assign) int64_t captureTimeMs;
+@property(nonatomic, assign) int64_t ntpTimeMs;
+@property(nonatomic, assign) uint8_t flags;
+@property(nonatomic, assign) int64_t encodeStartMs;
+@property(nonatomic, assign) int64_t encodeFinishMs;
+@property(nonatomic, assign) RTCFrameType frameType;
+@property(nonatomic, assign) RTCVideoRotation rotation;
+@property(nonatomic, strong) NSNumber *qp;
+@property(nonatomic, assign) RTCVideoContentType contentType;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCEncodedImage.m b/third_party/libwebrtc/sdk/objc/base/RTCEncodedImage.m
new file mode 100644
index 0000000000..ad8441aabd
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCEncodedImage.m
@@ -0,0 +1,29 @@
+/*
+ * 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.
+ */
+
+#import "RTCEncodedImage.h"
+
+@implementation RTC_OBJC_TYPE (RTCEncodedImage)
+
+@synthesize buffer = _buffer;
+@synthesize encodedWidth = _encodedWidth;
+@synthesize encodedHeight = _encodedHeight;
+@synthesize timeStamp = _timeStamp;
+@synthesize captureTimeMs = _captureTimeMs;
+@synthesize ntpTimeMs = _ntpTimeMs;
+@synthesize flags = _flags;
+@synthesize encodeStartMs = _encodeStartMs;
+@synthesize encodeFinishMs = _encodeFinishMs;
+@synthesize frameType = _frameType;
+@synthesize rotation = _rotation;
+@synthesize qp = _qp;
+@synthesize contentType = _contentType;
+
+@end
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCI420Buffer.h b/third_party/libwebrtc/sdk/objc/base/RTCI420Buffer.h
new file mode 100644
index 0000000000..b97f05a5ba
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCI420Buffer.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2018 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 <AVFoundation/AVFoundation.h>
+
+#import "RTCYUVPlanarBuffer.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Protocol for RTCYUVPlanarBuffers containing I420 data */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCI420Buffer)<RTC_OBJC_TYPE(RTCYUVPlanarBuffer)> @end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCLogging.h b/third_party/libwebrtc/sdk/objc/base/RTCLogging.h
new file mode 100644
index 0000000000..754945c8f2
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCLogging.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2015 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 <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+
+// Subset of rtc::LoggingSeverity.
+typedef NS_ENUM(NSInteger, RTCLoggingSeverity) {
+ RTCLoggingSeverityVerbose,
+ RTCLoggingSeverityInfo,
+ RTCLoggingSeverityWarning,
+ RTCLoggingSeverityError,
+ RTCLoggingSeverityNone,
+};
+
+// Wrapper for C++ RTC_LOG(sev) macros.
+// Logs the log string to the webrtc logstream for the given severity.
+RTC_EXTERN void RTCLogEx(RTCLoggingSeverity severity, NSString* log_string);
+
+// Wrapper for rtc::LogMessage::LogToDebug.
+// Sets the minimum severity to be logged to console.
+RTC_EXTERN void RTCSetMinDebugLogLevel(RTCLoggingSeverity severity);
+
+// Returns the filename with the path prefix removed.
+RTC_EXTERN NSString* RTCFileName(const char* filePath);
+
+// Some convenience macros.
+
+#define RTCLogString(format, ...) \
+ [NSString stringWithFormat:@"(%@:%d %s): " format, RTCFileName(__FILE__), \
+ __LINE__, __FUNCTION__, ##__VA_ARGS__]
+
+#define RTCLogFormat(severity, format, ...) \
+ do { \
+ NSString* log_string = RTCLogString(format, ##__VA_ARGS__); \
+ RTCLogEx(severity, log_string); \
+ } while (false)
+
+#define RTCLogVerbose(format, ...) \
+ RTCLogFormat(RTCLoggingSeverityVerbose, format, ##__VA_ARGS__)
+
+#define RTCLogInfo(format, ...) \
+ RTCLogFormat(RTCLoggingSeverityInfo, format, ##__VA_ARGS__)
+
+#define RTCLogWarning(format, ...) \
+ RTCLogFormat(RTCLoggingSeverityWarning, format, ##__VA_ARGS__)
+
+#define RTCLogError(format, ...) \
+ RTCLogFormat(RTCLoggingSeverityError, format, ##__VA_ARGS__)
+
+#if !defined(NDEBUG)
+#define RTCLogDebug(format, ...) RTCLogInfo(format, ##__VA_ARGS__)
+#else
+#define RTCLogDebug(format, ...) \
+ do { \
+ } while (false)
+#endif
+
+#define RTCLog(format, ...) RTCLogInfo(format, ##__VA_ARGS__)
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCLogging.mm b/third_party/libwebrtc/sdk/objc/base/RTCLogging.mm
new file mode 100644
index 0000000000..e8dae02efb
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCLogging.mm
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2015 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 "RTCLogging.h"
+
+#include "rtc_base/logging.h"
+
+rtc::LoggingSeverity RTCGetNativeLoggingSeverity(RTCLoggingSeverity severity) {
+ switch (severity) {
+ case RTCLoggingSeverityVerbose:
+ return rtc::LS_VERBOSE;
+ case RTCLoggingSeverityInfo:
+ return rtc::LS_INFO;
+ case RTCLoggingSeverityWarning:
+ return rtc::LS_WARNING;
+ case RTCLoggingSeverityError:
+ return rtc::LS_ERROR;
+ case RTCLoggingSeverityNone:
+ return rtc::LS_NONE;
+ }
+}
+
+void RTCLogEx(RTCLoggingSeverity severity, NSString* log_string) {
+ if (log_string.length) {
+ const char* utf8_string = log_string.UTF8String;
+ RTC_LOG_V(RTCGetNativeLoggingSeverity(severity)) << utf8_string;
+ }
+}
+
+void RTCSetMinDebugLogLevel(RTCLoggingSeverity severity) {
+ rtc::LogMessage::LogToDebug(RTCGetNativeLoggingSeverity(severity));
+}
+
+NSString* RTCFileName(const char* file_path) {
+ NSString* ns_file_path =
+ [[NSString alloc] initWithBytesNoCopy:const_cast<char*>(file_path)
+ length:strlen(file_path)
+ encoding:NSUTF8StringEncoding
+ freeWhenDone:NO];
+ return ns_file_path.lastPathComponent;
+}
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCMacros.h b/third_party/libwebrtc/sdk/objc/base/RTCMacros.h
new file mode 100644
index 0000000000..469e3c93bd
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCMacros.h
@@ -0,0 +1,62 @@
+/*
+ * 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.
+ */
+
+#ifndef SDK_OBJC_BASE_RTCMACROS_H_
+#define SDK_OBJC_BASE_RTCMACROS_H_
+
+#ifdef WEBRTC_ENABLE_OBJC_SYMBOL_EXPORT
+
+#if defined(WEBRTC_LIBRARY_IMPL)
+#define RTC_OBJC_EXPORT __attribute__((visibility("default")))
+#endif
+
+#endif // WEBRTC_ENABLE_OBJC_SYMBOL_EXPORT
+
+#ifndef RTC_OBJC_EXPORT
+#define RTC_OBJC_EXPORT
+#endif
+
+// Internal macros used to correctly concatenate symbols.
+#define RTC_SYMBOL_CONCAT_HELPER(a, b) a##b
+#define RTC_SYMBOL_CONCAT(a, b) RTC_SYMBOL_CONCAT_HELPER(a, b)
+
+// RTC_OBJC_TYPE_PREFIX
+//
+// Macro used to prepend a prefix to the API types that are exported with
+// RTC_OBJC_EXPORT.
+//
+// Clients can patch the definition of this macro locally and build
+// WebRTC.framework with their own prefix in case symbol clashing is a
+// problem.
+//
+// This macro must only be defined here and not on via compiler flag to
+// ensure it has a unique value.
+#define RTC_OBJC_TYPE_PREFIX
+
+// RCT_OBJC_TYPE
+//
+// Macro used internally to declare API types. Declaring an API type without
+// using this macro will not include the declared type in the set of types
+// that will be affected by the configurable RTC_OBJC_TYPE_PREFIX.
+#define RTC_OBJC_TYPE(type_name) RTC_SYMBOL_CONCAT(RTC_OBJC_TYPE_PREFIX, type_name)
+
+#if defined(__cplusplus)
+#define RTC_EXTERN extern "C" RTC_OBJC_EXPORT
+#else
+#define RTC_EXTERN extern RTC_OBJC_EXPORT
+#endif
+
+#ifdef __OBJC__
+#define RTC_FWD_DECL_OBJC_CLASS(classname) @class classname
+#else
+#define RTC_FWD_DECL_OBJC_CLASS(classname) typedef struct objc_object classname
+#endif
+
+#endif // SDK_OBJC_BASE_RTCMACROS_H_
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCMutableI420Buffer.h b/third_party/libwebrtc/sdk/objc/base/RTCMutableI420Buffer.h
new file mode 100644
index 0000000000..cde721980b
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCMutableI420Buffer.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2018 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 <AVFoundation/AVFoundation.h>
+
+#import "RTCI420Buffer.h"
+#import "RTCMutableYUVPlanarBuffer.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Extension of the I420 buffer with mutable data access */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCMutableI420Buffer)<RTC_OBJC_TYPE(RTCI420Buffer), RTC_OBJC_TYPE(RTCMutableYUVPlanarBuffer)> @end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCMutableYUVPlanarBuffer.h b/third_party/libwebrtc/sdk/objc/base/RTCMutableYUVPlanarBuffer.h
new file mode 100644
index 0000000000..bd14e3bca3
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCMutableYUVPlanarBuffer.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2018 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 <AVFoundation/AVFoundation.h>
+
+#import "RTCYUVPlanarBuffer.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Extension of the YUV planar data buffer with mutable data access */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCMutableYUVPlanarBuffer)<RTC_OBJC_TYPE(RTCYUVPlanarBuffer)>
+
+ @property(nonatomic, readonly) uint8_t *mutableDataY;
+@property(nonatomic, readonly) uint8_t *mutableDataU;
+@property(nonatomic, readonly) uint8_t *mutableDataV;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCSSLCertificateVerifier.h b/third_party/libwebrtc/sdk/objc/base/RTCSSLCertificateVerifier.h
new file mode 100644
index 0000000000..53da0cceff
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCSSLCertificateVerifier.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2022 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 <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+RTC_OBJC_EXPORT @protocol RTC_OBJC_TYPE
+(RTCSSLCertificateVerifier)<NSObject>
+
+ /** The certificate to verify */
+ - (BOOL)verify : (NSData *)derCertificate;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoCapturer.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoCapturer.h
new file mode 100644
index 0000000000..a1ffdcf38e
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoCapturer.h
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+#import "RTCVideoFrame.h"
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class RTC_OBJC_TYPE(RTCVideoCapturer);
+
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoCapturerDelegate)<NSObject> -
+ (void)capturer : (RTC_OBJC_TYPE(RTCVideoCapturer) *)capturer didCaptureVideoFrame
+ : (RTC_OBJC_TYPE(RTCVideoFrame) *)frame;
+@end
+
+RTC_OBJC_EXPORT
+@interface RTC_OBJC_TYPE (RTCVideoCapturer) : NSObject
+
+@property(nonatomic, weak) id<RTC_OBJC_TYPE(RTCVideoCapturerDelegate)> delegate;
+
+- (instancetype)initWithDelegate:(id<RTC_OBJC_TYPE(RTCVideoCapturerDelegate)>)delegate;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoCapturer.m b/third_party/libwebrtc/sdk/objc/base/RTCVideoCapturer.m
new file mode 100644
index 0000000000..ca31a731f0
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoCapturer.m
@@ -0,0 +1,24 @@
+/*
+ * 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.
+ */
+
+#import "RTCVideoCapturer.h"
+
+@implementation RTC_OBJC_TYPE (RTCVideoCapturer)
+
+@synthesize delegate = _delegate;
+
+- (instancetype)initWithDelegate:(id<RTC_OBJC_TYPE(RTCVideoCapturerDelegate)>)delegate {
+ if (self = [super init]) {
+ _delegate = delegate;
+ }
+ return self;
+}
+
+@end
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoCodecInfo.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoCodecInfo.h
new file mode 100644
index 0000000000..fa28958f25
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoCodecInfo.h
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Holds information to identify a codec. Corresponds to webrtc::SdpVideoFormat. */
+RTC_OBJC_EXPORT
+@interface RTC_OBJC_TYPE (RTCVideoCodecInfo) : NSObject <NSCoding>
+
+- (instancetype)init NS_UNAVAILABLE;
+
+- (instancetype)initWithName:(NSString *)name;
+
+- (instancetype)initWithName:(NSString *)name
+ parameters:(nullable NSDictionary<NSString *, NSString *> *)parameters
+ NS_DESIGNATED_INITIALIZER;
+
+- (BOOL)isEqualToCodecInfo:(RTC_OBJC_TYPE(RTCVideoCodecInfo) *)info;
+
+@property(nonatomic, readonly) NSString *name;
+@property(nonatomic, readonly) NSDictionary<NSString *, NSString *> *parameters;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoCodecInfo.m b/third_party/libwebrtc/sdk/objc/base/RTCVideoCodecInfo.m
new file mode 100644
index 0000000000..ce26ae1de3
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoCodecInfo.m
@@ -0,0 +1,65 @@
+/*
+ * 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.
+ */
+
+#import "RTCVideoCodecInfo.h"
+
+@implementation RTC_OBJC_TYPE (RTCVideoCodecInfo)
+
+@synthesize name = _name;
+@synthesize parameters = _parameters;
+
+- (instancetype)initWithName:(NSString *)name {
+ return [self initWithName:name parameters:nil];
+}
+
+- (instancetype)initWithName:(NSString *)name
+ parameters:(nullable NSDictionary<NSString *, NSString *> *)parameters {
+ if (self = [super init]) {
+ _name = name;
+ _parameters = (parameters ? parameters : @{});
+ }
+
+ return self;
+}
+
+- (BOOL)isEqualToCodecInfo:(RTC_OBJC_TYPE(RTCVideoCodecInfo) *)info {
+ if (!info ||
+ ![self.name isEqualToString:info.name] ||
+ ![self.parameters isEqualToDictionary:info.parameters]) {
+ return NO;
+ }
+ return YES;
+}
+
+- (BOOL)isEqual:(id)object {
+ if (self == object)
+ return YES;
+ if (![object isKindOfClass:[self class]])
+ return NO;
+ return [self isEqualToCodecInfo:object];
+}
+
+- (NSUInteger)hash {
+ return [self.name hash] ^ [self.parameters hash];
+}
+
+#pragma mark - NSCoding
+
+- (instancetype)initWithCoder:(NSCoder *)decoder {
+ return [self initWithName:[decoder decodeObjectForKey:@"name"]
+ parameters:[decoder decodeObjectForKey:@"parameters"]];
+}
+
+- (void)encodeWithCoder:(NSCoder *)encoder {
+ [encoder encodeObject:_name forKey:@"name"];
+ [encoder encodeObject:_parameters forKey:@"parameters"];
+}
+
+@end
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoDecoder.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoDecoder.h
new file mode 100644
index 0000000000..ccddd42d42
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoDecoder.h
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCCodecSpecificInfo.h"
+#import "RTCEncodedImage.h"
+#import "RTCMacros.h"
+#import "RTCVideoEncoderSettings.h"
+#import "RTCVideoFrame.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Callback block for decoder. */
+typedef void (^RTCVideoDecoderCallback)(RTC_OBJC_TYPE(RTCVideoFrame) * frame);
+
+/** Protocol for decoder implementations. */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoDecoder)<NSObject>
+
+ - (void)setCallback : (RTCVideoDecoderCallback)callback;
+- (NSInteger)startDecodeWithNumberOfCores:(int)numberOfCores;
+- (NSInteger)releaseDecoder;
+- (NSInteger)decode:(RTC_OBJC_TYPE(RTCEncodedImage) *)encodedImage
+ missingFrames:(BOOL)missingFrames
+ codecSpecificInfo:(nullable id<RTC_OBJC_TYPE(RTCCodecSpecificInfo)>)info
+ renderTimeMs:(int64_t)renderTimeMs;
+- (NSString *)implementationName;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoDecoderFactory.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoDecoderFactory.h
new file mode 100644
index 0000000000..8d90138521
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoDecoderFactory.h
@@ -0,0 +1,32 @@
+/*
+ * 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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+#import "RTCVideoCodecInfo.h"
+#import "RTCVideoDecoder.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** RTCVideoDecoderFactory is an Objective-C version of webrtc::VideoDecoderFactory.
+ */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoDecoderFactory)<NSObject>
+
+ - (nullable id<RTC_OBJC_TYPE(RTCVideoDecoder)>)createDecoder
+ : (RTC_OBJC_TYPE(RTCVideoCodecInfo) *)info;
+- (NSArray<RTC_OBJC_TYPE(RTCVideoCodecInfo) *> *)
+ supportedCodecs; // TODO(andersc): "supportedFormats" instead?
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoder.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoder.h
new file mode 100644
index 0000000000..2445d432d6
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoder.h
@@ -0,0 +1,59 @@
+/*
+ * 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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCCodecSpecificInfo.h"
+#import "RTCEncodedImage.h"
+#import "RTCMacros.h"
+#import "RTCVideoEncoderQpThresholds.h"
+#import "RTCVideoEncoderSettings.h"
+#import "RTCVideoFrame.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Callback block for encoder. */
+typedef BOOL (^RTCVideoEncoderCallback)(RTC_OBJC_TYPE(RTCEncodedImage) * frame,
+ id<RTC_OBJC_TYPE(RTCCodecSpecificInfo)> info);
+
+/** Protocol for encoder implementations. */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoEncoder)<NSObject>
+
+- (void)setCallback:(nullable RTCVideoEncoderCallback)callback;
+- (NSInteger)startEncodeWithSettings:(RTC_OBJC_TYPE(RTCVideoEncoderSettings) *)settings
+ numberOfCores:(int)numberOfCores;
+- (NSInteger)releaseEncoder;
+- (NSInteger)encode:(RTC_OBJC_TYPE(RTCVideoFrame) *)frame
+ codecSpecificInfo:(nullable id<RTC_OBJC_TYPE(RTCCodecSpecificInfo)>)info
+ frameTypes:(NSArray<NSNumber *> *)frameTypes;
+- (int)setBitrate:(uint32_t)bitrateKbit framerate:(uint32_t)framerate;
+- (NSString *)implementationName;
+
+/** Returns QP scaling settings for encoder. The quality scaler adjusts the resolution in order to
+ * keep the QP from the encoded images within the given range. Returning nil from this function
+ * disables quality scaling. */
+- (nullable RTC_OBJC_TYPE(RTCVideoEncoderQpThresholds) *)scalingSettings;
+
+/** Resolutions should be aligned to this value. */
+@property(nonatomic, readonly) NSInteger resolutionAlignment;
+
+/** If enabled, resolution alignment is applied to all simulcast layers simultaneously so that when
+ scaled, all resolutions comply with 'resolutionAlignment'. */
+@property(nonatomic, readonly) BOOL applyAlignmentToAllSimulcastLayers;
+
+/** If YES, the receiver is expected to resample/scale the source texture to the expected output
+ size. */
+@property(nonatomic, readonly) BOOL supportsNativeHandle;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderFactory.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderFactory.h
new file mode 100644
index 0000000000..a73cd77990
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderFactory.h
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+#import "RTCVideoCodecInfo.h"
+#import "RTCVideoEncoder.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** RTCVideoEncoderFactory is an Objective-C version of
+ webrtc::VideoEncoderFactory::VideoEncoderSelector.
+ */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoEncoderSelector)<NSObject>
+
+ - (void)registerCurrentEncoderInfo : (RTC_OBJC_TYPE(RTCVideoCodecInfo) *)info;
+- (nullable RTC_OBJC_TYPE(RTCVideoCodecInfo) *)encoderForBitrate:(NSInteger)bitrate;
+- (nullable RTC_OBJC_TYPE(RTCVideoCodecInfo) *)encoderForBrokenEncoder;
+
+@optional
+- (nullable RTC_OBJC_TYPE(RTCVideoCodecInfo) *)encoderForResolutionChangeBySize:(CGSize)size;
+
+@end
+
+/** RTCVideoEncoderFactory is an Objective-C version of webrtc::VideoEncoderFactory.
+ */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoEncoderFactory)<NSObject>
+
+ - (nullable id<RTC_OBJC_TYPE(RTCVideoEncoder)>)createEncoder
+ : (RTC_OBJC_TYPE(RTCVideoCodecInfo) *)info;
+- (NSArray<RTC_OBJC_TYPE(RTCVideoCodecInfo) *> *)
+ supportedCodecs; // TODO(andersc): "supportedFormats" instead?
+
+@optional
+- (NSArray<RTC_OBJC_TYPE(RTCVideoCodecInfo) *> *)implementations;
+- (nullable id<RTC_OBJC_TYPE(RTCVideoEncoderSelector)>)encoderSelector;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderQpThresholds.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderQpThresholds.h
new file mode 100644
index 0000000000..1a6e9e88ab
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderQpThresholds.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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** QP thresholds for encoder. Corresponds to webrtc::VideoEncoder::QpThresholds. */
+RTC_OBJC_EXPORT
+@interface RTC_OBJC_TYPE (RTCVideoEncoderQpThresholds) : NSObject
+
+- (instancetype)initWithThresholdsLow:(NSInteger)low high:(NSInteger)high;
+
+@property(nonatomic, readonly) NSInteger low;
+@property(nonatomic, readonly) NSInteger high;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderQpThresholds.m b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderQpThresholds.m
new file mode 100644
index 0000000000..fb7012f44f
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderQpThresholds.m
@@ -0,0 +1,26 @@
+/*
+ * 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.
+ */
+
+#import "RTCVideoEncoderQpThresholds.h"
+
+@implementation RTC_OBJC_TYPE (RTCVideoEncoderQpThresholds)
+
+@synthesize low = _low;
+@synthesize high = _high;
+
+- (instancetype)initWithThresholdsLow:(NSInteger)low high:(NSInteger)high {
+ if (self = [super init]) {
+ _low = low;
+ _high = high;
+ }
+ return self;
+}
+
+@end
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderSettings.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderSettings.h
new file mode 100644
index 0000000000..ae792eab71
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderSettings.h
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef NS_ENUM(NSUInteger, RTCVideoCodecMode) {
+ RTCVideoCodecModeRealtimeVideo,
+ RTCVideoCodecModeScreensharing,
+};
+
+/** Settings for encoder. Corresponds to webrtc::VideoCodec. */
+RTC_OBJC_EXPORT
+@interface RTC_OBJC_TYPE (RTCVideoEncoderSettings) : NSObject
+
+@property(nonatomic, strong) NSString *name;
+
+@property(nonatomic, assign) unsigned short width;
+@property(nonatomic, assign) unsigned short height;
+
+@property(nonatomic, assign) unsigned int startBitrate; // kilobits/sec.
+@property(nonatomic, assign) unsigned int maxBitrate;
+@property(nonatomic, assign) unsigned int minBitrate;
+
+@property(nonatomic, assign) uint32_t maxFramerate;
+
+@property(nonatomic, assign) unsigned int qpMax;
+@property(nonatomic, assign) RTCVideoCodecMode mode;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderSettings.m b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderSettings.m
new file mode 100644
index 0000000000..f66cd2cf77
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoEncoderSettings.m
@@ -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.
+ */
+
+#import "RTCVideoEncoderSettings.h"
+
+@implementation RTC_OBJC_TYPE (RTCVideoEncoderSettings)
+
+@synthesize name = _name;
+@synthesize width = _width;
+@synthesize height = _height;
+@synthesize startBitrate = _startBitrate;
+@synthesize maxBitrate = _maxBitrate;
+@synthesize minBitrate = _minBitrate;
+@synthesize maxFramerate = _maxFramerate;
+@synthesize qpMax = _qpMax;
+@synthesize mode = _mode;
+
+@end
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoFrame.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoFrame.h
new file mode 100644
index 0000000000..f5638d27cf
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoFrame.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2015 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 <AVFoundation/AVFoundation.h>
+#import <Foundation/Foundation.h>
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef NS_ENUM(NSInteger, RTCVideoRotation) {
+ RTCVideoRotation_0 = 0,
+ RTCVideoRotation_90 = 90,
+ RTCVideoRotation_180 = 180,
+ RTCVideoRotation_270 = 270,
+};
+
+@protocol RTC_OBJC_TYPE
+(RTCVideoFrameBuffer);
+
+// RTCVideoFrame is an ObjectiveC version of webrtc::VideoFrame.
+RTC_OBJC_EXPORT
+@interface RTC_OBJC_TYPE (RTCVideoFrame) : NSObject
+
+/** Width without rotation applied. */
+@property(nonatomic, readonly) int width;
+
+/** Height without rotation applied. */
+@property(nonatomic, readonly) int height;
+@property(nonatomic, readonly) RTCVideoRotation rotation;
+
+/** Timestamp in nanoseconds. */
+@property(nonatomic, readonly) int64_t timeStampNs;
+
+/** Timestamp 90 kHz. */
+@property(nonatomic, assign) int32_t timeStamp;
+
+@property(nonatomic, readonly) id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)> buffer;
+
+- (instancetype)init NS_UNAVAILABLE;
+- (instancetype) new NS_UNAVAILABLE;
+
+/** Initialize an RTCVideoFrame from a pixel buffer, rotation, and timestamp.
+ * Deprecated - initialize with a RTCCVPixelBuffer instead
+ */
+- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
+ rotation:(RTCVideoRotation)rotation
+ timeStampNs:(int64_t)timeStampNs
+ DEPRECATED_MSG_ATTRIBUTE("use initWithBuffer instead");
+
+/** Initialize an RTCVideoFrame from a pixel buffer combined with cropping and
+ * scaling. Cropping will be applied first on the pixel buffer, followed by
+ * scaling to the final resolution of scaledWidth x scaledHeight.
+ */
+- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
+ scaledWidth:(int)scaledWidth
+ scaledHeight:(int)scaledHeight
+ cropWidth:(int)cropWidth
+ cropHeight:(int)cropHeight
+ cropX:(int)cropX
+ cropY:(int)cropY
+ rotation:(RTCVideoRotation)rotation
+ timeStampNs:(int64_t)timeStampNs
+ DEPRECATED_MSG_ATTRIBUTE("use initWithBuffer instead");
+
+/** Initialize an RTCVideoFrame from a frame buffer, rotation, and timestamp.
+ */
+- (instancetype)initWithBuffer:(id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)>)frameBuffer
+ rotation:(RTCVideoRotation)rotation
+ timeStampNs:(int64_t)timeStampNs;
+
+/** Return a frame that is guaranteed to be I420, i.e. it is possible to access
+ * the YUV data on it.
+ */
+- (RTC_OBJC_TYPE(RTCVideoFrame) *)newI420VideoFrame;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoFrame.mm b/third_party/libwebrtc/sdk/objc/base/RTCVideoFrame.mm
new file mode 100644
index 0000000000..e162238d73
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoFrame.mm
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2015 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 "RTCVideoFrame.h"
+
+#import "RTCI420Buffer.h"
+#import "RTCVideoFrameBuffer.h"
+
+@implementation RTC_OBJC_TYPE (RTCVideoFrame) {
+ RTCVideoRotation _rotation;
+ int64_t _timeStampNs;
+}
+
+@synthesize buffer = _buffer;
+@synthesize timeStamp;
+
+- (int)width {
+ return _buffer.width;
+}
+
+- (int)height {
+ return _buffer.height;
+}
+
+- (RTCVideoRotation)rotation {
+ return _rotation;
+}
+
+- (int64_t)timeStampNs {
+ return _timeStampNs;
+}
+
+- (RTC_OBJC_TYPE(RTCVideoFrame) *)newI420VideoFrame {
+ return [[RTC_OBJC_TYPE(RTCVideoFrame) alloc] initWithBuffer:[_buffer toI420]
+ rotation:_rotation
+ timeStampNs:_timeStampNs];
+}
+
+- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
+ rotation:(RTCVideoRotation)rotation
+ timeStampNs:(int64_t)timeStampNs {
+ // Deprecated.
+ return nil;
+}
+
+- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
+ scaledWidth:(int)scaledWidth
+ scaledHeight:(int)scaledHeight
+ cropWidth:(int)cropWidth
+ cropHeight:(int)cropHeight
+ cropX:(int)cropX
+ cropY:(int)cropY
+ rotation:(RTCVideoRotation)rotation
+ timeStampNs:(int64_t)timeStampNs {
+ // Deprecated.
+ return nil;
+}
+
+- (instancetype)initWithBuffer:(id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)>)buffer
+ rotation:(RTCVideoRotation)rotation
+ timeStampNs:(int64_t)timeStampNs {
+ if (self = [super init]) {
+ _buffer = buffer;
+ _rotation = rotation;
+ _timeStampNs = timeStampNs;
+ }
+
+ return self;
+}
+
+@end
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoFrameBuffer.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoFrameBuffer.h
new file mode 100644
index 0000000000..a36807951b
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoFrameBuffer.h
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+#import <AVFoundation/AVFoundation.h>
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@protocol RTC_OBJC_TYPE
+(RTCI420Buffer);
+
+// RTCVideoFrameBuffer is an ObjectiveC version of webrtc::VideoFrameBuffer.
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoFrameBuffer)<NSObject>
+
+ @property(nonatomic, readonly) int width;
+@property(nonatomic, readonly) int height;
+
+- (id<RTC_OBJC_TYPE(RTCI420Buffer)>)toI420;
+
+@optional
+- (id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)>)cropAndScaleWith:(int)offsetX
+ offsetY:(int)offsetY
+ cropWidth:(int)cropWidth
+ cropHeight:(int)cropHeight
+ scaleWidth:(int)scaleWidth
+ scaleHeight:(int)scaleHeight;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCVideoRenderer.h b/third_party/libwebrtc/sdk/objc/base/RTCVideoRenderer.h
new file mode 100644
index 0000000000..0f763295ad
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCVideoRenderer.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2015 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 <Foundation/Foundation.h>
+#if TARGET_OS_IPHONE
+#import <UIKit/UIKit.h>
+#endif
+
+#import "RTCMacros.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class RTC_OBJC_TYPE(RTCVideoFrame);
+
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoRenderer)<NSObject>
+
+ /** The size of the frame. */
+ - (void)setSize : (CGSize)size;
+
+/** The frame to be displayed. */
+- (void)renderFrame:(nullable RTC_OBJC_TYPE(RTCVideoFrame) *)frame;
+
+@end
+
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCVideoViewDelegate)
+
+ - (void)videoView : (id<RTC_OBJC_TYPE(RTCVideoRenderer)>)videoView didChangeVideoSize
+ : (CGSize)size;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCYUVPlanarBuffer.h b/third_party/libwebrtc/sdk/objc/base/RTCYUVPlanarBuffer.h
new file mode 100644
index 0000000000..be01b915f5
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/base/RTCYUVPlanarBuffer.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2018 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 <AVFoundation/AVFoundation.h>
+
+#import "RTCMacros.h"
+#import "RTCVideoFrameBuffer.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** Protocol for RTCVideoFrameBuffers containing YUV planar data. */
+RTC_OBJC_EXPORT
+@protocol RTC_OBJC_TYPE
+(RTCYUVPlanarBuffer)<RTC_OBJC_TYPE(RTCVideoFrameBuffer)>
+
+ @property(nonatomic, readonly) int chromaWidth;
+@property(nonatomic, readonly) int chromaHeight;
+@property(nonatomic, readonly) const uint8_t *dataY;
+@property(nonatomic, readonly) const uint8_t *dataU;
+@property(nonatomic, readonly) const uint8_t *dataV;
+@property(nonatomic, readonly) int strideY;
+@property(nonatomic, readonly) int strideU;
+@property(nonatomic, readonly) int strideV;
+
+- (instancetype)initWithWidth:(int)width
+ height:(int)height
+ dataY:(const uint8_t *)dataY
+ dataU:(const uint8_t *)dataU
+ dataV:(const uint8_t *)dataV;
+- (instancetype)initWithWidth:(int)width height:(int)height;
+- (instancetype)initWithWidth:(int)width
+ height:(int)height
+ strideY:(int)strideY
+ strideU:(int)strideU
+ strideV:(int)strideV;
+
+@end
+
+NS_ASSUME_NONNULL_END