From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/libwebrtc/test/mac_capturer.mm | 107 +++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 third_party/libwebrtc/test/mac_capturer.mm

(limited to 'third_party/libwebrtc/test/mac_capturer.mm')

diff --git a/third_party/libwebrtc/test/mac_capturer.mm b/third_party/libwebrtc/test/mac_capturer.mm
new file mode 100644
index 0000000000..da8e9b76b6
--- /dev/null
+++ b/third_party/libwebrtc/test/mac_capturer.mm
@@ -0,0 +1,107 @@
+/*
+ *  Copyright (c) 2019 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.
+ */
+
+#include "test/mac_capturer.h"
+
+#import "sdk/objc/base/RTCVideoCapturer.h"
+#import "sdk/objc/components/capturer/RTCCameraVideoCapturer.h"
+#import "sdk/objc/native/api/video_capturer.h"
+#import "sdk/objc/native/src/objc_frame_buffer.h"
+
+@interface RTCTestVideoSourceAdapter : NSObject <RTC_OBJC_TYPE (RTCVideoCapturerDelegate)>
+@property(nonatomic) webrtc::test::MacCapturer *capturer;
+@end
+
+@implementation RTCTestVideoSourceAdapter
+@synthesize capturer = _capturer;
+
+- (void)capturer:(RTC_OBJC_TYPE(RTCVideoCapturer) *)capturer
+    didCaptureVideoFrame:(RTC_OBJC_TYPE(RTCVideoFrame) *)frame {
+  const int64_t timestamp_us = frame.timeStampNs / rtc::kNumNanosecsPerMicrosec;
+  rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer =
+      rtc::make_ref_counted<webrtc::ObjCFrameBuffer>(frame.buffer);
+  _capturer->OnFrame(webrtc::VideoFrame::Builder()
+                         .set_video_frame_buffer(buffer)
+                         .set_rotation(webrtc::kVideoRotation_0)
+                         .set_timestamp_us(timestamp_us)
+                         .build());
+}
+
+@end
+
+namespace {
+
+AVCaptureDeviceFormat *SelectClosestFormat(AVCaptureDevice *device, size_t width, size_t height) {
+  NSArray<AVCaptureDeviceFormat *> *formats =
+      [RTC_OBJC_TYPE(RTCCameraVideoCapturer) supportedFormatsForDevice:device];
+  AVCaptureDeviceFormat *selectedFormat = nil;
+  int currentDiff = INT_MAX;
+  for (AVCaptureDeviceFormat *format in formats) {
+    CMVideoDimensions dimension = CMVideoFormatDescriptionGetDimensions(format.formatDescription);
+    int diff =
+        std::abs((int64_t)width - dimension.width) + std::abs((int64_t)height - dimension.height);
+    if (diff < currentDiff) {
+      selectedFormat = format;
+      currentDiff = diff;
+    }
+  }
+  return selectedFormat;
+}
+
+}  // namespace
+
+namespace webrtc {
+namespace test {
+
+MacCapturer::MacCapturer(size_t width,
+                         size_t height,
+                         size_t target_fps,
+                         size_t capture_device_index) {
+  RTCTestVideoSourceAdapter *adapter = [[RTCTestVideoSourceAdapter alloc] init];
+  adapter_ = (__bridge_retained void *)adapter;
+  adapter.capturer = this;
+
+  RTC_OBJC_TYPE(RTCCameraVideoCapturer) *capturer =
+      [[RTC_OBJC_TYPE(RTCCameraVideoCapturer) alloc] initWithDelegate:adapter];
+  capturer_ = (__bridge_retained void *)capturer;
+
+  AVCaptureDevice *device =
+      [[RTC_OBJC_TYPE(RTCCameraVideoCapturer) captureDevices] objectAtIndex:capture_device_index];
+  AVCaptureDeviceFormat *format = SelectClosestFormat(device, width, height);
+  [capturer startCaptureWithDevice:device format:format fps:target_fps];
+}
+
+MacCapturer *MacCapturer::Create(size_t width,
+                                 size_t height,
+                                 size_t target_fps,
+                                 size_t capture_device_index) {
+  return new MacCapturer(width, height, target_fps, capture_device_index);
+}
+
+void MacCapturer::Destroy() {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-variable"
+  RTCTestVideoSourceAdapter *adapter = (__bridge_transfer RTCTestVideoSourceAdapter *)adapter_;
+  RTC_OBJC_TYPE(RTCCameraVideoCapturer) *capturer =
+      (__bridge_transfer RTC_OBJC_TYPE(RTCCameraVideoCapturer) *)capturer_;
+  [capturer stopCapture];
+#pragma clang diagnostic pop
+}
+
+MacCapturer::~MacCapturer() {
+  Destroy();
+}
+
+void MacCapturer::OnFrame(const VideoFrame &frame) {
+  TestVideoCapturer::OnFrame(frame);
+}
+
+}  // namespace test
+}  // namespace webrtc
-- 
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