1 files changed, 83 insertions, 0 deletions
diff --git a/third_party/libwebrtc/video/config/encoder_stream_factory_unittest.cc b/third_party/libwebrtc/video/config/encoder_stream_factory_unittest.cc
new file mode 100644
index 0000000000..b37b300c96
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+++ b/third_party/libwebrtc/video/config/encoder_stream_factory_unittest.cc
@@ -0,0 +1,83 @@
+/*
+ *  Copyright (c) 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.
+ */
+
+#include "video/config/encoder_stream_factory.h"
+
+#include "call/adaptation/video_source_restrictions.h"
+#include "test/gtest.h"
+
+namespace webrtc {
+
+using cricket::EncoderStreamFactory;
+constexpr int kMaxQp = 48;
+
+namespace {
+
+std::vector<Resolution> GetStreamResolutions(
+    const std::vector<VideoStream>& streams) {
+  std::vector<Resolution> res;
+  for (const auto& s : streams) {
+    if (s.active) {
+      res.push_back(
+          {rtc::checked_cast<int>(s.width), rtc::checked_cast<int>(s.height)});
+    }
+  }
+  return res;
+}
+
+VideoStream LayerWithRequestedResolution(Resolution res) {
+  VideoStream s;
+  s.requested_resolution = res;
+  return s;
+}
+
+}  // namespace
+
+TEST(EncoderStreamFactory, SinglecastRequestedResolution) {
+  VideoEncoder::EncoderInfo encoder_info;
+  auto factory = rtc::make_ref_counted<EncoderStreamFactory>(
+      "VP8", kMaxQp,
+      /* is_screenshare= */ false,
+      /* conference_mode= */ false, encoder_info);
+  VideoEncoderConfig encoder_config;
+  encoder_config.number_of_streams = 1;
+  encoder_config.simulcast_layers.push_back(
+      LayerWithRequestedResolution({.width = 640, .height = 360}));
+  auto streams = factory->CreateEncoderStreams(1280, 720, encoder_config);
+  EXPECT_EQ(streams[0].requested_resolution,
+            (Resolution{.width = 640, .height = 360}));
+  EXPECT_EQ(GetStreamResolutions(streams), (std::vector<Resolution>{
+                                               {.width = 640, .height = 360},
+                                           }));
+}
+
+TEST(EncoderStreamFactory, SinglecastRequestedResolutionWithAdaptation) {
+  VideoSourceRestrictions restrictions(
+      /* max_pixels_per_frame= */ (320 * 320),
+      /* target_pixels_per_frame= */ absl::nullopt,
+      /* max_frame_rate= */ absl::nullopt);
+  VideoEncoder::EncoderInfo encoder_info;
+  auto factory = rtc::make_ref_counted<EncoderStreamFactory>(
+      "VP8", kMaxQp,
+      /* is_screenshare= */ false,
+      /* conference_mode= */ false, encoder_info, restrictions);
+  VideoEncoderConfig encoder_config;
+  encoder_config.number_of_streams = 1;
+  encoder_config.simulcast_layers.push_back(
+      LayerWithRequestedResolution({.width = 640, .height = 360}));
+  auto streams = factory->CreateEncoderStreams(1280, 720, encoder_config);
+  EXPECT_EQ(streams[0].requested_resolution,
+            (Resolution{.width = 640, .height = 360}));
+  EXPECT_EQ(GetStreamResolutions(streams), (std::vector<Resolution>{
+                                               {.width = 320, .height = 180},
+                                           }));
+}
+
+}  // namespace webrtc