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content / browser / renderer_host / media / video_capture_buffer_pool_unittest.cc [blame]
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Unit test for VideoCaptureBufferPool.
#include "media/capture/video/video_capture_buffer_pool.h"
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <memory>
#include <utility>
#include <vector>
#include "base/functional/bind.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "base/test/task_environment.h"
#include "build/build_config.h"
#include "content/browser/renderer_host/media/video_capture_controller.h"
#include "media/base/video_frame.h"
#include "media/capture/video/video_capture_buffer_pool_impl.h"
#include "media/capture/video/video_capture_buffer_tracker_factory_impl.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#if BUILDFLAG(IS_MAC)
#include "ui/gfx/mac/io_surface.h"
#endif
#if BUILDFLAG(IS_WIN)
#include <dxgi1_2.h>
#include <mfapi.h>
#include "media/base/win/dxgi_device_manager.h"
#endif
namespace content {
namespace {
size_t ImageAllocationSize(const media::VideoCaptureFormat& format) {
return media::VideoFrame::AllocationSize(format.pixel_format,
format.frame_size);
}
} // namespace
static constexpr media::VideoPixelFormat kCapturePixelFormats[] = {
media::PIXEL_FORMAT_I420,
media::PIXEL_FORMAT_ARGB,
media::PIXEL_FORMAT_Y16,
};
static constexpr media::VideoCaptureBufferType kVideoCaptureBufferTypes[] = {
media::VideoCaptureBufferType::kSharedMemory,
media::VideoCaptureBufferType::kMailboxHolder,
media::VideoCaptureBufferType::kGpuMemoryBuffer};
static constexpr int kTestBufferPoolSize = 3;
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC)
static constexpr gfx::Size kDefaultTextureSize = gfx::Size(1080, 720);
static constexpr int kInvalidId = -1;
static constexpr media::VideoPixelFormat kDefaultPixelFormat =
media::VideoPixelFormat::PIXEL_FORMAT_NV12;
static const media::VideoCaptureFormat kDefaultFormat =
media::VideoCaptureFormat(kDefaultTextureSize, 30, kDefaultPixelFormat);
static const gfx::ColorSpace kDefaultColorSpace = gfx::ColorSpace();
#endif
// Note that this test does not exercise the class VideoCaptureBufferPool
// in isolation. The "unit under test" is an instance of VideoCaptureBufferPool
// with some context that is specific to renderer_host/media, and therefore
// this test must live here and not in media/capture/video.
class VideoCaptureBufferPoolTest
: public testing::TestWithParam<
std::tuple<media::VideoPixelFormat, media::VideoCaptureBufferType>> {
public:
VideoCaptureBufferPoolTest(const VideoCaptureBufferPoolTest&) = delete;
VideoCaptureBufferPoolTest& operator=(const VideoCaptureBufferPoolTest&) =
delete;
protected:
// This is a generic Buffer tracker
class Buffer {
public:
Buffer(const scoped_refptr<media::VideoCaptureBufferPool> pool,
std::unique_ptr<media::VideoCaptureBufferHandle> buffer_handle,
int id)
: id_(id), pool_(pool), buffer_handle_(std::move(buffer_handle)) {}
~Buffer() { pool_->RelinquishProducerReservation(id()); }
int id() const { return id_; }
size_t mapped_size() { return buffer_handle_->mapped_size(); }
void* data() { return buffer_handle_->data(); }
private:
const int id_;
const scoped_refptr<media::VideoCaptureBufferPool> pool_;
const std::unique_ptr<media::VideoCaptureBufferHandle> buffer_handle_;
};
VideoCaptureBufferPoolTest() : expected_dropped_id_(0) {
#if BUILDFLAG(IS_WIN)
auto dxgi_device_manager =
media::DXGIDeviceManager::Create(CHROME_LUID{0, 0});
DCHECK(dxgi_device_manager);
d3d11_device_ = dxgi_device_manager->GetDevice().Get();
DCHECK(d3d11_device_);
pool_ = new media::VideoCaptureBufferPoolImpl(
GetBufferType(), kTestBufferPoolSize,
std::make_unique<media::VideoCaptureBufferTrackerFactoryImpl>(
std::move(dxgi_device_manager)));
#else
pool_ = new media::VideoCaptureBufferPoolImpl(
media::VideoCaptureBufferType::kSharedMemory, kTestBufferPoolSize);
#endif
}
void ExpectDroppedId(int expected_dropped_id) {
expected_dropped_id_ = expected_dropped_id;
}
std::unique_ptr<Buffer> ReserveBuffer(const gfx::Size& dimensions,
media::VideoPixelFormat pixel_format) {
// To verify that ReserveBuffer always sets |buffer_id_to_drop|,
// initialize it to something different than the expected value.
int buffer_id_to_drop = ~expected_dropped_id_;
DVLOG(1) << media::VideoPixelFormatToString(pixel_format) << " "
<< dimensions.ToString();
const int arbitrary_frame_feedback_id = 0;
int buffer_id = media::VideoCaptureBufferPool::kInvalidId;
const auto reserve_result = pool_->ReserveForProducer(
dimensions, pixel_format, nullptr, arbitrary_frame_feedback_id,
&buffer_id, &buffer_id_to_drop);
if (reserve_result !=
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded) {
return nullptr;
}
EXPECT_EQ(expected_dropped_id_, buffer_id_to_drop);
std::unique_ptr<media::VideoCaptureBufferHandle> buffer_handle =
pool_->GetHandleForInProcessAccess(buffer_id);
return std::make_unique<Buffer>(pool_, std::move(buffer_handle), buffer_id);
}
media::VideoPixelFormat GetPixelFormat() { return std::get<0>(GetParam()); }
media::VideoCaptureBufferType GetBufferType() {
return std::get<1>(GetParam());
}
#if BUILDFLAG(IS_WIN)
raw_ptr<ID3D11Device> d3d11_device_ = nullptr;
#endif
base::test::SingleThreadTaskEnvironment task_environment_;
int expected_dropped_id_;
scoped_refptr<media::VideoCaptureBufferPool> pool_;
};
TEST_P(VideoCaptureBufferPoolTest, BufferPool) {
media::VideoPixelFormat pixel_format = GetPixelFormat();
const gfx::Size size_lo = gfx::Size(10, 10);
const gfx::Size size_hi = gfx::Size(21, 33);
const media::VideoCaptureFormat format_lo(size_lo, 0.0, pixel_format);
const media::VideoCaptureFormat format_hi(size_hi, 0.0, pixel_format);
// Reallocation won't happen for the first part of the test.
ExpectDroppedId(media::VideoCaptureBufferPool::kInvalidId);
// The buffer pool should have zero utilization before any buffers have been
// reserved.
ASSERT_EQ(0.0, pool_->GetBufferPoolUtilization());
std::unique_ptr<Buffer> buffer1 = ReserveBuffer(size_lo, pixel_format);
ASSERT_NE(nullptr, buffer1.get());
ASSERT_EQ(1.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
std::unique_ptr<Buffer> buffer2 = ReserveBuffer(size_lo, pixel_format);
ASSERT_NE(nullptr, buffer2.get());
ASSERT_EQ(2.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
std::unique_ptr<Buffer> buffer3 = ReserveBuffer(size_lo, pixel_format);
ASSERT_NE(nullptr, buffer3.get());
ASSERT_EQ(3.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
ASSERT_LE(ImageAllocationSize(format_lo), buffer1->mapped_size());
ASSERT_LE(ImageAllocationSize(format_lo), buffer2->mapped_size());
ASSERT_LE(ImageAllocationSize(format_lo), buffer3->mapped_size());
ASSERT_NE(nullptr, buffer1->data());
ASSERT_NE(nullptr, buffer2->data());
ASSERT_NE(nullptr, buffer3->data());
// Touch the memory.
if (buffer1->data() != nullptr)
memset(buffer1->data(), 0x11, buffer1->mapped_size());
if (buffer2->data() != nullptr)
memset(buffer2->data(), 0x44, buffer2->mapped_size());
if (buffer3->data() != nullptr)
memset(buffer3->data(), 0x77, buffer3->mapped_size());
// Fourth buffer should fail. Buffer pool utilization should be at 100%.
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
// Release 1st buffer and retry; this should succeed.
buffer1.reset();
ASSERT_EQ(2.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
std::unique_ptr<Buffer> buffer4 = ReserveBuffer(size_lo, pixel_format);
ASSERT_NE(nullptr, buffer4.get());
ASSERT_EQ(3.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
ASSERT_FALSE(ReserveBuffer(size_hi, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
// Validate the IDs
int buffer_id2 = buffer2->id();
ASSERT_EQ(1, buffer_id2);
const int buffer_id3 = buffer3->id();
ASSERT_EQ(2, buffer_id3);
const int buffer_id4 = buffer4->id();
ASSERT_EQ(0, buffer_id4);
void* const memory_pointer3 = buffer3->data();
// Deliver a buffer.
pool_->HoldForConsumers(buffer_id3, 2);
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
buffer3.reset(); // Old producer releases buffer. Should be a noop.
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
ASSERT_FALSE(ReserveBuffer(size_hi, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
buffer2.reset(); // Active producer releases buffer. Should free a buffer.
buffer1 = ReserveBuffer(size_lo, pixel_format);
ASSERT_NE(nullptr, buffer1.get());
ASSERT_EQ(3.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
// First consumer finishes.
pool_->RelinquishConsumerHold(buffer_id3, 1);
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
// Second consumer finishes. This should free that buffer.
pool_->RelinquishConsumerHold(buffer_id3, 1);
buffer3 = ReserveBuffer(size_lo, pixel_format);
ASSERT_NE(nullptr, buffer3.get());
ASSERT_EQ(buffer_id3, buffer3->id()) << "Buffer ID should be reused.";
ASSERT_EQ(memory_pointer3, buffer3->data());
ASSERT_EQ(3.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
// Now deliver & consume buffer1, but don't release the buffer.
int buffer_id1 = buffer1->id();
ASSERT_EQ(1, buffer_id1);
pool_->HoldForConsumers(buffer_id1, 5);
pool_->RelinquishConsumerHold(buffer_id1, 5);
// Even though the consumer is done with the buffer at |buffer_id1|, it cannot
// be re-allocated to the producer, because |buffer1| still references it. But
// when |buffer1| goes away, we should be able to re-reserve the buffer (and
// the ID ought to be the same).
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
buffer1.reset(); // Should free the buffer.
ASSERT_EQ(2.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
buffer2 = ReserveBuffer(size_lo, pixel_format);
ASSERT_NE(nullptr, buffer2.get());
ASSERT_EQ(buffer_id1, buffer2->id());
buffer_id2 = buffer_id1;
ASSERT_EQ(3.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
// Now try reallocation with different resolutions. We expect reallocation
// to occur only when the old buffer is too small.
buffer2.reset();
ExpectDroppedId(buffer_id2);
ASSERT_EQ(2.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
buffer2 = ReserveBuffer(size_hi, pixel_format);
ASSERT_NE(nullptr, buffer2.get());
ASSERT_LE(ImageAllocationSize(format_hi), buffer2->mapped_size());
ASSERT_EQ(3, buffer2->id());
ASSERT_EQ(3.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
void* const memory_pointer_hi = buffer2->data();
buffer2.reset(); // Frees it.
ExpectDroppedId(media::VideoCaptureBufferPool::kInvalidId);
ASSERT_EQ(2.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
buffer2 = ReserveBuffer(size_lo, pixel_format);
void* const memory_pointer_lo = buffer2->data();
ASSERT_EQ(memory_pointer_hi, memory_pointer_lo)
<< "Decrease in resolution should not reallocate buffer";
ASSERT_NE(nullptr, buffer2.get());
ASSERT_EQ(3, buffer2->id());
ASSERT_LE(ImageAllocationSize(format_lo), buffer2->mapped_size());
ASSERT_EQ(3.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
ASSERT_FALSE(ReserveBuffer(size_lo, pixel_format)) << "Pool should be empty";
ASSERT_EQ(1.0, pool_->GetBufferPoolUtilization());
// Tear down the pool_, writing into the buffers. The buffer should preserve
// the lifetime of the underlying memory.
buffer3.reset();
ASSERT_EQ(2.0 / kTestBufferPoolSize, pool_->GetBufferPoolUtilization());
pool_ = nullptr;
// Touch the memory.
if (buffer2->data() != nullptr)
memset(buffer2->data(), 0x22, buffer2->mapped_size());
if (buffer4->data() != nullptr)
memset(buffer4->data(), 0x55, buffer4->mapped_size());
buffer2.reset();
if (buffer4->data() != nullptr)
memset(buffer4->data(), 0x77, buffer4->mapped_size());
buffer4.reset();
}
#if BUILDFLAG(IS_WIN)
namespace {
gfx::GpuMemoryBufferHandle CreateHandle(ID3D11Device* d3d11_device) {
EXPECT_TRUE(d3d11_device != nullptr);
D3D11_TEXTURE2D_DESC desc = {};
desc.Width = kDefaultTextureSize.width();
desc.Height = kDefaultTextureSize.height();
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.Format = DXGI_FORMAT_NV12;
desc.Usage = D3D11_USAGE_DEFAULT;
desc.SampleDesc.Count = 1;
desc.BindFlags = 0;
desc.MiscFlags =
D3D11_RESOURCE_MISC_SHARED | D3D11_RESOURCE_MISC_SHARED_NTHANDLE;
ID3D11Texture2D* texture = nullptr;
HRESULT hr = d3d11_device->CreateTexture2D(&desc, nullptr, &texture);
EXPECT_HRESULT_SUCCEEDED(hr);
Microsoft::WRL::ComPtr<IDXGIResource1> dxgi_resource;
hr = texture->QueryInterface(IID_PPV_ARGS(&dxgi_resource));
EXPECT_HRESULT_SUCCEEDED(hr);
HANDLE texture_handle;
hr = dxgi_resource->CreateSharedHandle(
nullptr, DXGI_SHARED_RESOURCE_READ | DXGI_SHARED_RESOURCE_WRITE, nullptr,
&texture_handle);
EXPECT_HRESULT_SUCCEEDED(hr);
gfx::GpuMemoryBufferHandle result;
result.type = gfx::GpuMemoryBufferType::DXGI_SHARED_HANDLE;
result.dxgi_handle.Set(texture_handle);
result.dxgi_token = gfx::DXGIHandleToken();
return result;
}
} // namespace
TEST_P(VideoCaptureBufferPoolTest, BufferPoolExternalWin) {
auto handle0 = CreateHandle(d3d11_device_);
auto handle1 = CreateHandle(d3d11_device_);
auto handle2 = CreateHandle(d3d11_device_);
int buffer_id_to_drop;
int buffer_id0 = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
std::move(handle0), kDefaultFormat, kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id0),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_NE(buffer_id0, kInvalidId);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
pool_->HoldForConsumers(buffer_id0, 1);
pool_->RelinquishProducerReservation(buffer_id0);
// We should get a new buffer for handle1.
int buffer_id1 = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
std::move(handle1), kDefaultFormat, kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id1),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_NE(buffer_id1, kInvalidId);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
pool_->HoldForConsumers(buffer_id1, 1);
pool_->RelinquishProducerReservation(buffer_id1);
pool_->RelinquishConsumerHold(buffer_id1, 1);
// We should reuse handle1's buffer.
int buffer_id1_reuse = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
pool_->GetGpuMemoryBufferHandle(buffer_id1), kDefaultFormat,
kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id1_reuse),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_EQ(buffer_id1, buffer_id1_reuse);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
pool_->HoldForConsumers(buffer_id1_reuse, 1);
pool_->RelinquishProducerReservation(buffer_id1_reuse);
// If we leave buffer_id1 held for a consumer, then we create a new buffer id
// for it.
int buffer_id1_new = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
pool_->GetGpuMemoryBufferHandle(buffer_id1), kDefaultFormat,
kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id1_new),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_NE(buffer_id1, buffer_id1_new);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
pool_->HoldForConsumers(buffer_id1_new, 1);
pool_->RelinquishProducerReservation(buffer_id1_new);
pool_->RelinquishConsumerHold(buffer_id1_new, 1);
// We have now reached kTestBufferPoolSize buffers. So our next allocation
// will return the LRU buffer, which is buffer_id1_new.
pool_->RelinquishConsumerHold(buffer_id1_reuse, 1);
int buffer_id2 = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
std::move(handle2), kDefaultFormat, kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id2),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_NE(buffer_id0, buffer_id2);
EXPECT_NE(buffer_id1, buffer_id2);
EXPECT_NE(buffer_id1_new, buffer_id2);
EXPECT_EQ(buffer_id_to_drop, buffer_id1_new);
EXPECT_NE(buffer_id2, kInvalidId);
// Finally, let's reuse handle0.
pool_->RelinquishConsumerHold(buffer_id0, 1);
int buffer_id0_reuse = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
pool_->GetGpuMemoryBufferHandle(buffer_id0), kDefaultFormat,
kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id0_reuse),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_EQ(buffer_id0, buffer_id0_reuse);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
}
#endif
#if BUILDFLAG(IS_MAC)
namespace {
gfx::GpuMemoryBufferHandle CreateIOSurfaceHandle() {
gfx::GpuMemoryBufferHandle result;
result.type = gfx::GpuMemoryBufferType::IO_SURFACE_BUFFER;
result.id = gfx::GpuMemoryBufferHandle::kInvalidId;
result.io_surface =
gfx::CreateIOSurface(kDefaultTextureSize, gfx::BufferFormat::BGRA_8888);
return result;
}
} // namespace
TEST_P(VideoCaptureBufferPoolTest, BufferPoolExternal) {
auto handle0 = CreateIOSurfaceHandle();
auto handle1 = CreateIOSurfaceHandle();
auto handle2 = CreateIOSurfaceHandle();
int buffer_id_to_drop;
int buffer_id0 = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
std::move(handle0), kDefaultFormat, kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id0),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_NE(buffer_id0, kInvalidId);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
EXPECT_FALSE(IOSurfaceIsInUse(
pool_->GetGpuMemoryBufferHandle(buffer_id0).io_surface.get()));
pool_->HoldForConsumers(buffer_id0, 1);
EXPECT_TRUE(IOSurfaceIsInUse(
pool_->GetGpuMemoryBufferHandle(buffer_id0).io_surface.get()));
pool_->RelinquishProducerReservation(buffer_id0);
// We should get a new buffer for handle1.
int buffer_id1 = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
std::move(handle1), kDefaultFormat, kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id1),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_NE(buffer_id1, kInvalidId);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
pool_->HoldForConsumers(buffer_id1, 1);
pool_->RelinquishProducerReservation(buffer_id1);
pool_->RelinquishConsumerHold(buffer_id1, 1);
// We should reuse handle1's buffer.
int buffer_id1_reuse = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
pool_->GetGpuMemoryBufferHandle(buffer_id1), kDefaultFormat,
kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id1_reuse),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_EQ(buffer_id1, buffer_id1_reuse);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
pool_->HoldForConsumers(buffer_id1_reuse, 1);
pool_->RelinquishProducerReservation(buffer_id1_reuse);
// If we leave buffer_id1 held for a consumer, then we create a new buffer id
// for it.
int buffer_id1_new = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
pool_->GetGpuMemoryBufferHandle(buffer_id1), kDefaultFormat,
kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id1_new),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_NE(buffer_id1, buffer_id1_new);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
pool_->HoldForConsumers(buffer_id1_new, 1);
pool_->RelinquishProducerReservation(buffer_id1_new);
pool_->RelinquishConsumerHold(buffer_id1_new, 1);
// We have now reached kTestBufferPoolSize buffers. So our next allocation
// will return the LRU buffer, which is buffer_id1_new.
pool_->RelinquishConsumerHold(buffer_id1_reuse, 1);
int buffer_id2 = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
std::move(handle2), kDefaultFormat, kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id2),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_NE(buffer_id0, buffer_id2);
EXPECT_NE(buffer_id1, buffer_id2);
EXPECT_NE(buffer_id1_new, buffer_id2);
EXPECT_NE(buffer_id2, kInvalidId);
EXPECT_EQ(buffer_id_to_drop, buffer_id1_new);
// Finally, let's reuse handle0.
pool_->RelinquishConsumerHold(buffer_id0, 1);
int buffer_id0_reuse = kInvalidId;
EXPECT_EQ(pool_->ReserveIdForExternalBuffer(
media::CapturedExternalVideoBuffer(
pool_->GetGpuMemoryBufferHandle(buffer_id0), kDefaultFormat,
kDefaultColorSpace),
kDefaultTextureSize, &buffer_id_to_drop, &buffer_id0_reuse),
media::VideoCaptureDevice::Client::ReserveResult::kSucceeded);
EXPECT_EQ(buffer_id0, buffer_id0_reuse);
EXPECT_EQ(buffer_id_to_drop, kInvalidId);
}
#endif
INSTANTIATE_TEST_SUITE_P(
All,
VideoCaptureBufferPoolTest,
testing::Combine(testing::ValuesIn(kCapturePixelFormats),
testing::ValuesIn(kVideoCaptureBufferTypes)));
} // namespace content