1 files changed, 88 insertions, 0 deletions
diff --git a/third_party/libwebrtc/media/base/fake_frame_source.cc b/third_party/libwebrtc/media/base/fake_frame_source.cc
new file mode 100644
index 0000000000..61bc5857d9
--- /dev/null
+++ b/third_party/libwebrtc/media/base/fake_frame_source.cc
@@ -0,0 +1,88 @@
+/*
+ *  Copyright (c) 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.
+ */
+
+#include "media/base/fake_frame_source.h"
+
+#include "api/scoped_refptr.h"
+#include "api/video/i420_buffer.h"
+#include "api/video/video_frame_buffer.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/time_utils.h"
+
+namespace cricket {
+
+FakeFrameSource::FakeFrameSource(int width,
+                                 int height,
+                                 int interval_us,
+                                 int64_t timestamp_offset_us)
+    : width_(width),
+      height_(height),
+      interval_us_(interval_us),
+      next_timestamp_us_(timestamp_offset_us) {
+  RTC_CHECK_GT(width_, 0);
+  RTC_CHECK_GT(height_, 0);
+  RTC_CHECK_GT(interval_us_, 0);
+  RTC_CHECK_GE(next_timestamp_us_, 0);
+}
+
+FakeFrameSource::FakeFrameSource(int width, int height, int interval_us)
+    : FakeFrameSource(width, height, interval_us, rtc::TimeMicros()) {}
+
+webrtc::VideoRotation FakeFrameSource::GetRotation() const {
+  return rotation_;
+}
+
+void FakeFrameSource::SetRotation(webrtc::VideoRotation rotation) {
+  rotation_ = rotation;
+}
+
+webrtc::VideoFrame FakeFrameSource::GetFrameRotationApplied() {
+  switch (rotation_) {
+    case webrtc::kVideoRotation_0:
+    case webrtc::kVideoRotation_180:
+      return GetFrame(width_, height_, webrtc::kVideoRotation_0, interval_us_);
+    case webrtc::kVideoRotation_90:
+    case webrtc::kVideoRotation_270:
+      return GetFrame(height_, width_, webrtc::kVideoRotation_0, interval_us_);
+  }
+  RTC_DCHECK_NOTREACHED() << "Invalid rotation value: "
+                          << static_cast<int>(rotation_);
+  // Without this return, the Windows Visual Studio compiler complains
+  // "not all control paths return a value".
+  return GetFrame();
+}
+
+webrtc::VideoFrame FakeFrameSource::GetFrame() {
+  return GetFrame(width_, height_, rotation_, interval_us_);
+}
+
+webrtc::VideoFrame FakeFrameSource::GetFrame(int width,
+                                             int height,
+                                             webrtc::VideoRotation rotation,
+                                             int interval_us) {
+  RTC_CHECK_GT(width, 0);
+  RTC_CHECK_GT(height, 0);
+  RTC_CHECK_GT(interval_us, 0);
+
+  rtc::scoped_refptr<webrtc::I420Buffer> buffer(
+      webrtc::I420Buffer::Create(width, height));
+
+  buffer->InitializeData();
+  webrtc::VideoFrame frame = webrtc::VideoFrame::Builder()
+                                 .set_video_frame_buffer(buffer)
+                                 .set_rotation(rotation)
+                                 .set_timestamp_us(next_timestamp_us_)
+                                 .build();
+
+  next_timestamp_us_ += interval_us;
+  return frame;
+}
+
+}  // namespace cricket