Cast: Adding support for GPU accelerated encode

media/cast/video_sender/external_video_encoder_unittest.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <vector>
+
+#include "base/bind.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "media/base/video_frame.h"
+#include "media/cast/cast_defines.h"
+#include "media/cast/cast_environment.h"
+#include "media/cast/test/fake_gpu_video_accelerator_factories.h"
+#include "media/cast/test/fake_task_runner.h"
+#include "media/cast/test/fake_video_encode_accelerator.h"
+#include "media/cast/test/video_utility.h"
+#include "media/cast/video_sender/external_video_encoder.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace media {
+namespace cast {
+
+using testing::_;
+
+namespace {
+class TestVideoEncoderCallback :
+    public base::RefCountedThreadSafe<TestVideoEncoderCallback>  {
+ public:
+  TestVideoEncoderCallback() {}
+
+  void SetExpectedResult(bool expected_key_frame,
+                         uint8 expected_frame_id,
+                         uint8 expected_last_referenced_frame_id,
+                         const base::TimeTicks& expected_capture_time) {
+    expected_key_frame_ = expected_key_frame;
+    expected_frame_id_ = expected_frame_id;
+    expected_last_referenced_frame_id_ = expected_last_referenced_frame_id;
+    expected_capture_time_ = expected_capture_time;
+  }
+
+  void DeliverEncodedVideoFrame(scoped_ptr<EncodedVideoFrame> encoded_frame,
+                                const base::TimeTicks& capture_time) {
+    EXPECT_EQ(expected_key_frame_, encoded_frame->key_frame);
+    EXPECT_EQ(expected_frame_id_, encoded_frame->frame_id);
+    EXPECT_EQ(expected_last_referenced_frame_id_,
+              encoded_frame->last_referenced_frame_id);
+    EXPECT_EQ(expected_capture_time_, capture_time);
+  }
+
+ protected:
+  virtual ~TestVideoEncoderCallback() {}
+
+ private:
+  friend class base::RefCountedThreadSafe<TestVideoEncoderCallback>;
+
+  bool expected_key_frame_;
+  uint8 expected_frame_id_;
+  uint8 expected_last_referenced_frame_id_;
+  base::TimeTicks expected_capture_time_;
+};
+}  // namespace
+
+
+class ExternalVideoEncoderTest : public ::testing::Test {
+ protected:
+  ExternalVideoEncoderTest()
+      : test_video_encoder_callback_(new TestVideoEncoderCallback()) {
+    video_config_.sender_ssrc = 1;
+    video_config_.incoming_feedback_ssrc = 2;
+    video_config_.rtp_payload_type = 127;
+    video_config_.use_external_encoder = true;
+    video_config_.width = 320;
+    video_config_.height = 240;
+    video_config_.max_bitrate = 5000000;
+    video_config_.min_bitrate = 1000000;
+    video_config_.start_bitrate = 2000000;
+    video_config_.max_qp = 56;
+    video_config_.min_qp = 0;
+    video_config_.max_frame_rate = 30;
+    video_config_.max_number_of_video_buffers_used = 3;
+    video_config_.codec = kVp8;
+    gfx::Size size(video_config_.width, video_config_.height);
+    video_frame_ =  media::VideoFrame::CreateFrame(VideoFrame::I420,
+        size, gfx::Rect(size), size, base::TimeDelta());
+    PopulateVideoFrame(video_frame_, 123);
+  }
+
+  virtual ~ExternalVideoEncoderTest() {}
+
+  virtual void SetUp() {
+    task_runner_ = new test::FakeTaskRunner(&testing_clock_);
+    cast_environment_ = new CastEnvironment(&testing_clock_, task_runner_,
+        task_runner_, task_runner_, task_runner_, task_runner_,
+        GetDefaultCastLoggingConfig());
+    video_encoder_.reset(new ExternalVideoEncoder(
+        cast_environment_,
+        video_config_,
+        new test::FakeGpuVideoAcceleratorFactories(task_runner_)));
+  }
+
+  base::SimpleTestTickClock testing_clock_;
+  scoped_refptr<TestVideoEncoderCallback> test_video_encoder_callback_;
+  VideoSenderConfig video_config_;
+  scoped_refptr<test::FakeTaskRunner> task_runner_;
+  scoped_ptr<VideoEncoder> video_encoder_;
+  scoped_refptr<media::VideoFrame> video_frame_;
+  scoped_refptr<CastEnvironment> cast_environment_;
+};
+
+TEST_F(ExternalVideoEncoderTest, EncodePattern30fpsRunningOutOfAck) {
+  task_runner_->RunTasks();  // Run the initializer on the correct thread.
+
+  VideoEncoder::FrameEncodedCallback frame_encoded_callback =
+      base::Bind(&TestVideoEncoderCallback::DeliverEncodedVideoFrame,
+                 test_video_encoder_callback_.get());
+
+  base::TimeTicks capture_time;
+  capture_time += base::TimeDelta::FromMilliseconds(33);
+  test_video_encoder_callback_->SetExpectedResult(true, 0, 0, capture_time);
+  EXPECT_TRUE(video_encoder_->EncodeVideoFrame(video_frame_, capture_time,
+  frame_encoded_callback));
+  task_runner_->RunTasks();
+
+  for (int i = 0; i < 6; ++i) {
+    capture_time += base::TimeDelta::FromMilliseconds(33);
+    test_video_encoder_callback_->SetExpectedResult(false, i + 1, i,
+                                                    capture_time);
+    EXPECT_TRUE(video_encoder_->EncodeVideoFrame(video_frame_, capture_time,
+                                                 frame_encoded_callback));
+    task_runner_->RunTasks();
+  }
+}
+
+}  // namespace cast
+}  // namespace media