From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 02:47:55 +0200
Subject: Adding upstream version 124.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../api/video_frame_buffer/RTCNativeI420Buffer.mm  | 154 +++++++++++++++++++++
 1 file changed, 154 insertions(+)
 create mode 100644 third_party/libwebrtc/sdk/objc/api/video_frame_buffer/RTCNativeI420Buffer.mm

(limited to 'third_party/libwebrtc/sdk/objc/api/video_frame_buffer/RTCNativeI420Buffer.mm')

diff --git a/third_party/libwebrtc/sdk/objc/api/video_frame_buffer/RTCNativeI420Buffer.mm b/third_party/libwebrtc/sdk/objc/api/video_frame_buffer/RTCNativeI420Buffer.mm
new file mode 100644
index 0000000000..7aafd98f43
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/api/video_frame_buffer/RTCNativeI420Buffer.mm
@@ -0,0 +1,154 @@
+/*
+ *  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 "RTCNativeI420Buffer+Private.h"
+
+#include "api/video/i420_buffer.h"
+
+#if !defined(NDEBUG) && defined(WEBRTC_IOS)
+#import <UIKit/UIKit.h>
+#include "third_party/libyuv/include/libyuv.h"
+#endif
+
+@implementation RTC_OBJC_TYPE (RTCI420Buffer)
+
+- (instancetype)initWithWidth:(int)width height:(int)height {
+  if (self = [super init]) {
+    _i420Buffer = webrtc::I420Buffer::Create(width, height);
+  }
+
+  return self;
+}
+
+- (instancetype)initWithWidth:(int)width
+                       height:(int)height
+                        dataY:(const uint8_t *)dataY
+                        dataU:(const uint8_t *)dataU
+                        dataV:(const uint8_t *)dataV {
+  if (self = [super init]) {
+    _i420Buffer = webrtc::I420Buffer::Copy(
+        width, height, dataY, width, dataU, (width + 1) / 2, dataV, (width + 1) / 2);
+  }
+  return self;
+}
+
+- (instancetype)initWithWidth:(int)width
+                       height:(int)height
+                      strideY:(int)strideY
+                      strideU:(int)strideU
+                      strideV:(int)strideV {
+  if (self = [super init]) {
+    _i420Buffer = webrtc::I420Buffer::Create(width, height, strideY, strideU, strideV);
+  }
+
+  return self;
+}
+
+- (instancetype)initWithFrameBuffer:(rtc::scoped_refptr<webrtc::I420BufferInterface>)i420Buffer {
+  if (self = [super init]) {
+    _i420Buffer = i420Buffer;
+  }
+
+  return self;
+}
+
+- (int)width {
+  return _i420Buffer->width();
+}
+
+- (int)height {
+  return _i420Buffer->height();
+}
+
+- (int)strideY {
+  return _i420Buffer->StrideY();
+}
+
+- (int)strideU {
+  return _i420Buffer->StrideU();
+}
+
+- (int)strideV {
+  return _i420Buffer->StrideV();
+}
+
+- (int)chromaWidth {
+  return _i420Buffer->ChromaWidth();
+}
+
+- (int)chromaHeight {
+  return _i420Buffer->ChromaHeight();
+}
+
+- (const uint8_t *)dataY {
+  return _i420Buffer->DataY();
+}
+
+- (const uint8_t *)dataU {
+  return _i420Buffer->DataU();
+}
+
+- (const uint8_t *)dataV {
+  return _i420Buffer->DataV();
+}
+
+- (id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)>)cropAndScaleWith:(int)offsetX
+                                                   offsetY:(int)offsetY
+                                                 cropWidth:(int)cropWidth
+                                                cropHeight:(int)cropHeight
+                                                scaleWidth:(int)scaleWidth
+                                               scaleHeight:(int)scaleHeight {
+  rtc::scoped_refptr<webrtc::VideoFrameBuffer> scaled_buffer =
+      _i420Buffer->CropAndScale(offsetX, offsetY, cropWidth, cropHeight, scaleWidth, scaleHeight);
+  RTC_DCHECK_EQ(scaled_buffer->type(), webrtc::VideoFrameBuffer::Type::kI420);
+  // Calling ToI420() doesn't do any conversions.
+  rtc::scoped_refptr<webrtc::I420BufferInterface> buffer = scaled_buffer->ToI420();
+  RTC_OBJC_TYPE(RTCI420Buffer) *result =
+      [[RTC_OBJC_TYPE(RTCI420Buffer) alloc] initWithFrameBuffer:buffer];
+  return result;
+}
+
+- (id<RTC_OBJC_TYPE(RTCI420Buffer)>)toI420 {
+  return self;
+}
+
+#pragma mark - Private
+
+- (rtc::scoped_refptr<webrtc::I420BufferInterface>)nativeI420Buffer {
+  return _i420Buffer;
+}
+
+#pragma mark - Debugging
+
+#if !defined(NDEBUG) && defined(WEBRTC_IOS)
+- (id)debugQuickLookObject {
+  UIGraphicsBeginImageContext(CGSizeMake(_i420Buffer->width(), _i420Buffer->height()));
+  CGContextRef c = UIGraphicsGetCurrentContext();
+  uint8_t *ctxData = (uint8_t *)CGBitmapContextGetData(c);
+
+  libyuv::I420ToARGB(_i420Buffer->DataY(),
+                     _i420Buffer->StrideY(),
+                     _i420Buffer->DataU(),
+                     _i420Buffer->StrideU(),
+                     _i420Buffer->DataV(),
+                     _i420Buffer->StrideV(),
+                     ctxData,
+                     CGBitmapContextGetBytesPerRow(c),
+                     CGBitmapContextGetWidth(c),
+                     CGBitmapContextGetHeight(c));
+
+  UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
+  UIGraphicsEndImageContext();
+
+  return image;
+}
+#endif
+
+@end
-- 
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