third_party/chromium/media/gpu/chromeos/platform_video_frame_pool_unittest.cc - cobalt - Git at Google

 // Copyright 2019 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 "media/gpu/chromeos/platform_video_frame_pool.h"

 #include <stddef.h>
 #include <stdint.h>
 #include <memory>
 #include <vector>

 #include "base/callback_helpers.h"
 #include "base/test/task_environment.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "gpu/command_buffer/common/mailbox_holder.h"
 #include "media/base/format_utils.h"
 #include "media/base/video_util.h"
 #include "media/gpu/chromeos/fourcc.h"
 #include "media/video/fake_gpu_memory_buffer.h"
 #include "testing/gtest/include/gtest/gtest.h"

 namespace media {

 namespace {

 template <uint64_t modifier>
 scoped_refptr<VideoFrame> CreateGpuMemoryBufferVideoFrame(
     gpu::GpuMemoryBufferFactory* factory,
     VideoPixelFormat format,
     const gfx::Size& coded_size,
     const gfx::Rect& visible_rect,
     const gfx::Size& natural_size,
     bool use_protected,
     base::TimeDelta timestamp) {
   absl::optional<gfx::BufferFormat> gfx_format =
       VideoPixelFormatToGfxBufferFormat(format);
   DCHECK(gfx_format);
   const gpu::MailboxHolder mailbox_holders[VideoFrame::kMaxPlanes] = {};
   return VideoFrame::WrapExternalGpuMemoryBuffer(
       visible_rect, natural_size,
       std::make_unique<FakeGpuMemoryBuffer>(coded_size, *gfx_format, modifier),
       mailbox_holders, base::NullCallback(), timestamp);
 }

 }  // namespace

 class PlatformVideoFramePoolTest
     : public ::testing::TestWithParam<VideoPixelFormat> {
  public:
   PlatformVideoFramePoolTest()
       : task_environment_(base::test::TaskEnvironment::TimeSource::MOCK_TIME),
         pool_(new PlatformVideoFramePool(nullptr)) {
     SetCreateFrameCB(
         base::BindRepeating(&CreateGpuMemoryBufferVideoFrame<
                             gfx::NativePixmapHandle::kNoModifier>));
     pool_->set_parent_task_runner(base::ThreadTaskRunnerHandle::Get());
   }

   bool Initialize(const Fourcc& fourcc) {
     constexpr gfx::Size kCodedSize(320, 240);
     return Initialize(kCodedSize, /*visible_rect=*/gfx::Rect(kCodedSize),
                       fourcc);
   }

   bool Initialize(const gfx::Size& coded_size,
                   const gfx::Rect& visible_rect,
                   const Fourcc& fourcc) {
     constexpr size_t kNumFrames = 10;
     visible_rect_ = visible_rect;
     natural_size_ = visible_rect.size();
     auto status_or_layout = pool_->Initialize(fourcc, coded_size, visible_rect_,
                                               natural_size_, kNumFrames,
                                               /*use_protected=*/false);
     if (status_or_layout.has_error()) {
       return false;
     }
     layout_ = std::move(status_or_layout).value();
     return true;
   }

   scoped_refptr<VideoFrame> GetFrame(int timestamp_ms) {
     scoped_refptr<VideoFrame> frame = pool_->GetFrame();
     frame->set_timestamp(base::Milliseconds(timestamp_ms));

     EXPECT_EQ(layout_->modifier(), frame->layout().modifier());
     EXPECT_EQ(layout_->fourcc(),
               *Fourcc::FromVideoPixelFormat(frame->format()));
     EXPECT_EQ(layout_->size(), frame->coded_size());
     EXPECT_EQ(visible_rect_, frame->visible_rect());
     EXPECT_EQ(natural_size_, frame->natural_size());

     return frame;
   }

   void SetCreateFrameCB(PlatformVideoFramePool::CreateFrameCB cb) {
     pool_->create_frame_cb_ = cb;
   }

  protected:
   base::test::TaskEnvironment task_environment_;
   std::unique_ptr<PlatformVideoFramePool> pool_;

   absl::optional<GpuBufferLayout> layout_;
   gfx::Rect visible_rect_;
   gfx::Size natural_size_;
 };

 INSTANTIATE_TEST_SUITE_P(All,
                          PlatformVideoFramePoolTest,
                          testing::Values(PIXEL_FORMAT_YV12,
                                          PIXEL_FORMAT_NV12,
                                          PIXEL_FORMAT_ARGB,
                                          PIXEL_FORMAT_P016LE));

 TEST_P(PlatformVideoFramePoolTest, SingleFrameReuse) {
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());
   ASSERT_TRUE(Initialize(fourcc.value()));
   scoped_refptr<VideoFrame> frame = GetFrame(10);
   gfx::GpuMemoryBufferId id =
       PlatformVideoFramePool::GetGpuMemoryBufferId(*frame);

   // Clear frame reference to return the frame to the pool.
   frame = nullptr;
   task_environment_.RunUntilIdle();

   // Verify that the next frame from the pool uses the same memory.
   scoped_refptr<VideoFrame> new_frame = GetFrame(20);
   EXPECT_EQ(id, PlatformVideoFramePool::GetGpuMemoryBufferId(*new_frame));
 }

 TEST_P(PlatformVideoFramePoolTest, MultipleFrameReuse) {
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());
   ASSERT_TRUE(Initialize(fourcc.value()));
   scoped_refptr<VideoFrame> frame1 = GetFrame(10);
   scoped_refptr<VideoFrame> frame2 = GetFrame(20);
   gfx::GpuMemoryBufferId id1 =
       PlatformVideoFramePool::GetGpuMemoryBufferId(*frame1);
   gfx::GpuMemoryBufferId id2 =
       PlatformVideoFramePool::GetGpuMemoryBufferId(*frame2);

   frame1 = nullptr;
   task_environment_.RunUntilIdle();
   frame1 = GetFrame(30);
   EXPECT_EQ(id1, PlatformVideoFramePool::GetGpuMemoryBufferId(*frame1));

   frame2 = nullptr;
   task_environment_.RunUntilIdle();
   frame2 = GetFrame(40);
   EXPECT_EQ(id2, PlatformVideoFramePool::GetGpuMemoryBufferId(*frame2));

   frame1 = nullptr;
   frame2 = nullptr;
   task_environment_.RunUntilIdle();
   EXPECT_EQ(2u, pool_->GetPoolSizeForTesting());
 }

 TEST_P(PlatformVideoFramePoolTest, InitializeWithDifferentFourcc) {
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());
   ASSERT_TRUE(Initialize(fourcc.value()));
   scoped_refptr<VideoFrame> frame_a = GetFrame(10);
   scoped_refptr<VideoFrame> frame_b = GetFrame(10);

   // Clear frame references to return the frames to the pool.
   frame_a = nullptr;
   frame_b = nullptr;
   task_environment_.RunUntilIdle();

   // Verify that both frames are in the pool.
   EXPECT_EQ(2u, pool_->GetPoolSizeForTesting());

   // Verify that requesting a frame with a different format causes the pool
   // to get drained.
   const Fourcc different_fourcc(Fourcc::XR24);
   ASSERT_NE(fourcc, different_fourcc);
   ASSERT_TRUE(Initialize(different_fourcc));
   scoped_refptr<VideoFrame> new_frame = GetFrame(10);
   EXPECT_EQ(0u, pool_->GetPoolSizeForTesting());
 }

 TEST_P(PlatformVideoFramePoolTest, InitializeWithDifferentUsableArea) {
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());

   constexpr gfx::Size kCodedSize(640, 368);
   constexpr gfx::Rect kInitialVisibleRect(10, 20, 300, 200);
   ASSERT_TRUE(Initialize(kCodedSize, kInitialVisibleRect, fourcc.value()));
   scoped_refptr<VideoFrame> frame_a = GetFrame(10);
   scoped_refptr<VideoFrame> frame_b = GetFrame(10);

   // Clear frame references to return the frames to the pool.
   frame_a = nullptr;
   frame_b = nullptr;
   task_environment_.RunUntilIdle();

   // Verify that both frames are in the pool.
   EXPECT_EQ(2u, pool_->GetPoolSizeForTesting());

   // Verify that requesting a frame with a different "usable area" causes the
   // pool to get drained. The usable area is the area of the buffer starting at
   // (0, 0) and extending to the bottom-right corner of the visible rectangle.
   // It corresponds to the area used to import the video frame into a graphics
   // API or to create the DRM framebuffer for hardware overlay purposes.
   constexpr gfx::Rect kDifferentVisibleRect(5, 15, 300, 200);
   ASSERT_EQ(kDifferentVisibleRect.size(), natural_size_);
   ASSERT_NE(GetRectSizeFromOrigin(kInitialVisibleRect),
             GetRectSizeFromOrigin(kDifferentVisibleRect));
   ASSERT_TRUE(Initialize(kCodedSize, kDifferentVisibleRect, fourcc.value()));
   scoped_refptr<VideoFrame> new_frame = GetFrame(10);
   EXPECT_EQ(0u, pool_->GetPoolSizeForTesting());
 }

 TEST_P(PlatformVideoFramePoolTest, InitializeWithDifferentCodedSize) {
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());

   constexpr gfx::Size kInitialCodedSize(640, 368);
   constexpr gfx::Rect kVisibleRect(10, 20, 300, 200);
   ASSERT_TRUE(Initialize(kInitialCodedSize, kVisibleRect, fourcc.value()));
   scoped_refptr<VideoFrame> frame_a = GetFrame(10);
   scoped_refptr<VideoFrame> frame_b = GetFrame(10);

   // Clear frame references to return the frames to the pool.
   frame_a = nullptr;
   frame_b = nullptr;
   task_environment_.RunUntilIdle();

   // Verify that both frames are in the pool.
   EXPECT_EQ(2u, pool_->GetPoolSizeForTesting());

   // Verify that requesting a frame with a different coded size causes the pool
   // to get drained.
   constexpr gfx::Size kDifferentCodedSize(624, 368);
   ASSERT_TRUE(Initialize(kDifferentCodedSize, kVisibleRect, fourcc.value()));
   scoped_refptr<VideoFrame> new_frame = GetFrame(10);
   EXPECT_EQ(0u, pool_->GetPoolSizeForTesting());
 }

 TEST_P(PlatformVideoFramePoolTest, UnwrapVideoFrame) {
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());
   ASSERT_TRUE(Initialize(fourcc.value()));
   scoped_refptr<VideoFrame> frame_1 = GetFrame(10);
   scoped_refptr<VideoFrame> frame_2 = VideoFrame::WrapVideoFrame(
       frame_1, frame_1->format(), frame_1->visible_rect(),
       frame_1->natural_size());
   EXPECT_EQ(pool_->UnwrapFrame(*frame_1), pool_->UnwrapFrame(*frame_2));
   EXPECT_EQ(frame_1->GetGpuMemoryBuffer(), frame_2->GetGpuMemoryBuffer());

   scoped_refptr<VideoFrame> frame_3 = GetFrame(20);
   EXPECT_NE(pool_->UnwrapFrame(*frame_1), pool_->UnwrapFrame(*frame_3));
   EXPECT_NE(frame_1->GetGpuMemoryBuffer(), frame_3->GetGpuMemoryBuffer());
 }

 TEST_P(PlatformVideoFramePoolTest,
        InitializeWithSameFourccUsableAreaAndCodedSize) {
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());

   constexpr gfx::Size kCodedSize(640, 368);
   constexpr gfx::Rect kInitialVisibleRect(kCodedSize);
   ASSERT_TRUE(Initialize(kCodedSize, kInitialVisibleRect, fourcc.value()));
   scoped_refptr<VideoFrame> frame1 = GetFrame(10);
   gfx::GpuMemoryBufferId id1 =
       PlatformVideoFramePool::GetGpuMemoryBufferId(*frame1);

   // Clear frame references to return the frames to the pool.
   frame1 = nullptr;
   task_environment_.RunUntilIdle();

   // Request frame with the same format, coded size, and "usable area." To make
   // things interesting, we change the visible rect while keeping the
   // "usable area" constant. The usable area is the area of the buffer starting
   // at (0, 0) and extending to the bottom-right corner of the visible
   // rectangle. It corresponds to the area used to import the video frame into a
   // graphics API or to create the DRM framebuffer for hardware overlay
   // purposes. The pool should not request new frames.
   constexpr gfx::Rect kDifferentVisibleRect(10, 20, 630, 348);
   ASSERT_EQ(GetRectSizeFromOrigin(kInitialVisibleRect),
             GetRectSizeFromOrigin(kDifferentVisibleRect));
   ASSERT_TRUE(Initialize(kCodedSize, kDifferentVisibleRect, fourcc.value()));

   scoped_refptr<VideoFrame> frame2 = GetFrame(20);
   gfx::GpuMemoryBufferId id2 =
       PlatformVideoFramePool::GetGpuMemoryBufferId(*frame2);
   EXPECT_EQ(id1, id2);
 }

 TEST_P(PlatformVideoFramePoolTest, InitializeFail) {
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());
   SetCreateFrameCB(base::BindRepeating(
       [](gpu::GpuMemoryBufferFactory* factory, VideoPixelFormat format,
          const gfx::Size& coded_size, const gfx::Rect& visible_rect,
          const gfx::Size& natural_size, bool use_protected,
          base::TimeDelta timestamp) {
         auto frame = scoped_refptr<VideoFrame>(nullptr);
         return frame;
       }));

   EXPECT_FALSE(Initialize(fourcc.value()));
 }

 TEST_P(PlatformVideoFramePoolTest, ModifierIsPassed) {
   const uint64_t kSampleModifier = 0x001234567890abcdULL;
   const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
   ASSERT_TRUE(fourcc.has_value());
   SetCreateFrameCB(
       base::BindRepeating(&CreateGpuMemoryBufferVideoFrame<kSampleModifier>));
   ASSERT_TRUE(Initialize(fourcc.value()));

   EXPECT_EQ(layout_->modifier(), kSampleModifier);
   EXPECT_TRUE(GetFrame(10));
 }

 // TODO(akahuang): Add a testcase to verify calling Initialize() only with
 // different |max_num_frames|.

 }  // namespace media
	// Copyright 2019 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 "media/gpu/chromeos/platform_video_frame_pool.h"

	#include <stddef.h>
	#include <stdint.h>
	#include <memory>
	#include <vector>

	#include "base/callback_helpers.h"
	#include "base/test/task_environment.h"
	#include "base/threading/thread_task_runner_handle.h"
	#include "gpu/command_buffer/common/mailbox_holder.h"
	#include "media/base/format_utils.h"
	#include "media/base/video_util.h"
	#include "media/gpu/chromeos/fourcc.h"
	#include "media/video/fake_gpu_memory_buffer.h"
	#include "testing/gtest/include/gtest/gtest.h"

	namespace media {

	namespace {

	template <uint64_t modifier>
	scoped_refptr<VideoFrame> CreateGpuMemoryBufferVideoFrame(
	gpu::GpuMemoryBufferFactory* factory,
	VideoPixelFormat format,
	const gfx::Size& coded_size,
	const gfx::Rect& visible_rect,
	const gfx::Size& natural_size,
	bool use_protected,
	base::TimeDelta timestamp) {
	absl::optional<gfx::BufferFormat> gfx_format =
	VideoPixelFormatToGfxBufferFormat(format);
	DCHECK(gfx_format);
	const gpu::MailboxHolder mailbox_holders[VideoFrame::kMaxPlanes] = {};
	return VideoFrame::WrapExternalGpuMemoryBuffer(
	visible_rect, natural_size,
	std::make_unique<FakeGpuMemoryBuffer>(coded_size, *gfx_format, modifier),
	mailbox_holders, base::NullCallback(), timestamp);
	}

	} // namespace

	class PlatformVideoFramePoolTest
	: public ::testing::TestWithParam<VideoPixelFormat> {
	public:
	PlatformVideoFramePoolTest()
	: task_environment_(base::test::TaskEnvironment::TimeSource::MOCK_TIME),
	pool_(new PlatformVideoFramePool(nullptr)) {
	SetCreateFrameCB(
	base::BindRepeating(&CreateGpuMemoryBufferVideoFrame<
	gfx::NativePixmapHandle::kNoModifier>));
	pool_->set_parent_task_runner(base::ThreadTaskRunnerHandle::Get());
	}

	bool Initialize(const Fourcc& fourcc) {
	constexpr gfx::Size kCodedSize(320, 240);
	return Initialize(kCodedSize, /visible_rect=/gfx::Rect(kCodedSize),
	fourcc);
	}

	bool Initialize(const gfx::Size& coded_size,
	const gfx::Rect& visible_rect,
	const Fourcc& fourcc) {
	constexpr size_t kNumFrames = 10;
	visible_rect_ = visible_rect;
	natural_size_ = visible_rect.size();
	auto status_or_layout = pool_->Initialize(fourcc, coded_size, visible_rect_,
	natural_size_, kNumFrames,
	/use_protected=/false);
	if (status_or_layout.has_error()) {
	return false;
	}
	layout_ = std::move(status_or_layout).value();
	return true;
	}

	scoped_refptr<VideoFrame> GetFrame(int timestamp_ms) {
	scoped_refptr<VideoFrame> frame = pool_->GetFrame();
	frame->set_timestamp(base::Milliseconds(timestamp_ms));

	EXPECT_EQ(layout_->modifier(), frame->layout().modifier());
	EXPECT_EQ(layout_->fourcc(),
	*Fourcc::FromVideoPixelFormat(frame->format()));
	EXPECT_EQ(layout_->size(), frame->coded_size());
	EXPECT_EQ(visible_rect_, frame->visible_rect());
	EXPECT_EQ(natural_size_, frame->natural_size());

	return frame;
	}

	void SetCreateFrameCB(PlatformVideoFramePool::CreateFrameCB cb) {
	pool_->create_frame_cb_ = cb;
	}

	protected:
	base::test::TaskEnvironment task_environment_;
	std::unique_ptr<PlatformVideoFramePool> pool_;

	absl::optional<GpuBufferLayout> layout_;
	gfx::Rect visible_rect_;
	gfx::Size natural_size_;
	};

	INSTANTIATE_TEST_SUITE_P(All,
	PlatformVideoFramePoolTest,
	testing::Values(PIXEL_FORMAT_YV12,
	PIXEL_FORMAT_NV12,
	PIXEL_FORMAT_ARGB,
	PIXEL_FORMAT_P016LE));

	TEST_P(PlatformVideoFramePoolTest, SingleFrameReuse) {
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());
	ASSERT_TRUE(Initialize(fourcc.value()));
	scoped_refptr<VideoFrame> frame = GetFrame(10);
	gfx::GpuMemoryBufferId id =
	PlatformVideoFramePool::GetGpuMemoryBufferId(*frame);

	// Clear frame reference to return the frame to the pool.
	frame = nullptr;
	task_environment_.RunUntilIdle();

	// Verify that the next frame from the pool uses the same memory.
	scoped_refptr<VideoFrame> new_frame = GetFrame(20);
	EXPECT_EQ(id, PlatformVideoFramePool::GetGpuMemoryBufferId(*new_frame));
	}

	TEST_P(PlatformVideoFramePoolTest, MultipleFrameReuse) {
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());
	ASSERT_TRUE(Initialize(fourcc.value()));
	scoped_refptr<VideoFrame> frame1 = GetFrame(10);
	scoped_refptr<VideoFrame> frame2 = GetFrame(20);
	gfx::GpuMemoryBufferId id1 =
	PlatformVideoFramePool::GetGpuMemoryBufferId(*frame1);
	gfx::GpuMemoryBufferId id2 =
	PlatformVideoFramePool::GetGpuMemoryBufferId(*frame2);

	frame1 = nullptr;
	task_environment_.RunUntilIdle();
	frame1 = GetFrame(30);
	EXPECT_EQ(id1, PlatformVideoFramePool::GetGpuMemoryBufferId(*frame1));

	frame2 = nullptr;
	task_environment_.RunUntilIdle();
	frame2 = GetFrame(40);
	EXPECT_EQ(id2, PlatformVideoFramePool::GetGpuMemoryBufferId(*frame2));

	frame1 = nullptr;
	frame2 = nullptr;
	task_environment_.RunUntilIdle();
	EXPECT_EQ(2u, pool_->GetPoolSizeForTesting());
	}

	TEST_P(PlatformVideoFramePoolTest, InitializeWithDifferentFourcc) {
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());
	ASSERT_TRUE(Initialize(fourcc.value()));
	scoped_refptr<VideoFrame> frame_a = GetFrame(10);
	scoped_refptr<VideoFrame> frame_b = GetFrame(10);

	// Clear frame references to return the frames to the pool.
	frame_a = nullptr;
	frame_b = nullptr;
	task_environment_.RunUntilIdle();

	// Verify that both frames are in the pool.
	EXPECT_EQ(2u, pool_->GetPoolSizeForTesting());

	// Verify that requesting a frame with a different format causes the pool
	// to get drained.
	const Fourcc different_fourcc(Fourcc::XR24);
	ASSERT_NE(fourcc, different_fourcc);
	ASSERT_TRUE(Initialize(different_fourcc));
	scoped_refptr<VideoFrame> new_frame = GetFrame(10);
	EXPECT_EQ(0u, pool_->GetPoolSizeForTesting());
	}

	TEST_P(PlatformVideoFramePoolTest, InitializeWithDifferentUsableArea) {
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());

	constexpr gfx::Size kCodedSize(640, 368);
	constexpr gfx::Rect kInitialVisibleRect(10, 20, 300, 200);
	ASSERT_TRUE(Initialize(kCodedSize, kInitialVisibleRect, fourcc.value()));
	scoped_refptr<VideoFrame> frame_a = GetFrame(10);
	scoped_refptr<VideoFrame> frame_b = GetFrame(10);

	// Clear frame references to return the frames to the pool.
	frame_a = nullptr;
	frame_b = nullptr;
	task_environment_.RunUntilIdle();

	// Verify that both frames are in the pool.
	EXPECT_EQ(2u, pool_->GetPoolSizeForTesting());

	// Verify that requesting a frame with a different "usable area" causes the
	// pool to get drained. The usable area is the area of the buffer starting at
	// (0, 0) and extending to the bottom-right corner of the visible rectangle.
	// It corresponds to the area used to import the video frame into a graphics
	// API or to create the DRM framebuffer for hardware overlay purposes.
	constexpr gfx::Rect kDifferentVisibleRect(5, 15, 300, 200);
	ASSERT_EQ(kDifferentVisibleRect.size(), natural_size_);
	ASSERT_NE(GetRectSizeFromOrigin(kInitialVisibleRect),
	GetRectSizeFromOrigin(kDifferentVisibleRect));
	ASSERT_TRUE(Initialize(kCodedSize, kDifferentVisibleRect, fourcc.value()));
	scoped_refptr<VideoFrame> new_frame = GetFrame(10);
	EXPECT_EQ(0u, pool_->GetPoolSizeForTesting());
	}

	TEST_P(PlatformVideoFramePoolTest, InitializeWithDifferentCodedSize) {
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());

	constexpr gfx::Size kInitialCodedSize(640, 368);
	constexpr gfx::Rect kVisibleRect(10, 20, 300, 200);
	ASSERT_TRUE(Initialize(kInitialCodedSize, kVisibleRect, fourcc.value()));
	scoped_refptr<VideoFrame> frame_a = GetFrame(10);
	scoped_refptr<VideoFrame> frame_b = GetFrame(10);

	// Clear frame references to return the frames to the pool.
	frame_a = nullptr;
	frame_b = nullptr;
	task_environment_.RunUntilIdle();

	// Verify that both frames are in the pool.
	EXPECT_EQ(2u, pool_->GetPoolSizeForTesting());

	// Verify that requesting a frame with a different coded size causes the pool
	// to get drained.
	constexpr gfx::Size kDifferentCodedSize(624, 368);
	ASSERT_TRUE(Initialize(kDifferentCodedSize, kVisibleRect, fourcc.value()));
	scoped_refptr<VideoFrame> new_frame = GetFrame(10);
	EXPECT_EQ(0u, pool_->GetPoolSizeForTesting());
	}

	TEST_P(PlatformVideoFramePoolTest, UnwrapVideoFrame) {
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());
	ASSERT_TRUE(Initialize(fourcc.value()));
	scoped_refptr<VideoFrame> frame_1 = GetFrame(10);
	scoped_refptr<VideoFrame> frame_2 = VideoFrame::WrapVideoFrame(
	frame_1, frame_1->format(), frame_1->visible_rect(),
	frame_1->natural_size());
	EXPECT_EQ(pool_->UnwrapFrame(frame_1), pool_->UnwrapFrame(frame_2));
	EXPECT_EQ(frame_1->GetGpuMemoryBuffer(), frame_2->GetGpuMemoryBuffer());

	scoped_refptr<VideoFrame> frame_3 = GetFrame(20);
	EXPECT_NE(pool_->UnwrapFrame(frame_1), pool_->UnwrapFrame(frame_3));
	EXPECT_NE(frame_1->GetGpuMemoryBuffer(), frame_3->GetGpuMemoryBuffer());
	}

	TEST_P(PlatformVideoFramePoolTest,
	InitializeWithSameFourccUsableAreaAndCodedSize) {
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());

	constexpr gfx::Size kCodedSize(640, 368);
	constexpr gfx::Rect kInitialVisibleRect(kCodedSize);
	ASSERT_TRUE(Initialize(kCodedSize, kInitialVisibleRect, fourcc.value()));
	scoped_refptr<VideoFrame> frame1 = GetFrame(10);
	gfx::GpuMemoryBufferId id1 =
	PlatformVideoFramePool::GetGpuMemoryBufferId(*frame1);

	// Clear frame references to return the frames to the pool.
	frame1 = nullptr;
	task_environment_.RunUntilIdle();

	// Request frame with the same format, coded size, and "usable area." To make
	// things interesting, we change the visible rect while keeping the
	// "usable area" constant. The usable area is the area of the buffer starting
	// at (0, 0) and extending to the bottom-right corner of the visible
	// rectangle. It corresponds to the area used to import the video frame into a
	// graphics API or to create the DRM framebuffer for hardware overlay
	// purposes. The pool should not request new frames.
	constexpr gfx::Rect kDifferentVisibleRect(10, 20, 630, 348);
	ASSERT_EQ(GetRectSizeFromOrigin(kInitialVisibleRect),
	GetRectSizeFromOrigin(kDifferentVisibleRect));
	ASSERT_TRUE(Initialize(kCodedSize, kDifferentVisibleRect, fourcc.value()));

	scoped_refptr<VideoFrame> frame2 = GetFrame(20);
	gfx::GpuMemoryBufferId id2 =
	PlatformVideoFramePool::GetGpuMemoryBufferId(*frame2);
	EXPECT_EQ(id1, id2);
	}

	TEST_P(PlatformVideoFramePoolTest, InitializeFail) {
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());
	SetCreateFrameCB(base::BindRepeating(
	[](gpu::GpuMemoryBufferFactory* factory, VideoPixelFormat format,
	const gfx::Size& coded_size, const gfx::Rect& visible_rect,
	const gfx::Size& natural_size, bool use_protected,
	base::TimeDelta timestamp) {
	auto frame = scoped_refptr<VideoFrame>(nullptr);
	return frame;
	}));

	EXPECT_FALSE(Initialize(fourcc.value()));
	}

	TEST_P(PlatformVideoFramePoolTest, ModifierIsPassed) {
	const uint64_t kSampleModifier = 0x001234567890abcdULL;
	const auto fourcc = Fourcc::FromVideoPixelFormat(GetParam());
	ASSERT_TRUE(fourcc.has_value());
	SetCreateFrameCB(
	base::BindRepeating(&CreateGpuMemoryBufferVideoFrame<kSampleModifier>));
	ASSERT_TRUE(Initialize(fourcc.value()));

	EXPECT_EQ(layout_->modifier(), kSampleModifier);
	EXPECT_TRUE(GetFrame(10));
	}

	// TODO(akahuang): Add a testcase to verify calling Initialize() only with
	// different \|max_num_frames\|.

	} // namespace media