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// 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_utils.h"
#include <stddef.h>
#include <stdint.h>
#include <utility>
#include <vector>
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/files/scoped_file.h"
#include "base/logging.h"
#include "base/numerics/safe_conversions.h"
#include "base/optional.h"
#include "base/stl_util.h"
#include "base/time/time.h"
#include "gpu/ipc/service/gpu_memory_buffer_factory.h"
#include "media/base/color_plane_layout.h"
#include "media/base/format_utils.h"
#include "media/base/video_frame.h"
#include "media/base/video_frame_layout.h"
#include "media/base/video_types.h"
#include "media/video/fake_gpu_memory_buffer.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/linux/native_pixmap_dmabuf.h"
#include "ui/gfx/native_pixmap_handle.h"
namespace media {
namespace {
// Creates mock FDs and wrap them into a VideoFrame.
scoped_refptr<VideoFrame> CreateMockDmaBufVideoFrame(
VideoPixelFormat pixel_format,
const gfx::Size& coded_size,
const gfx::Rect& visible_rect,
const gfx::Size& natural_size) {
const base::Optional<VideoFrameLayout> layout =
VideoFrameLayout::Create(pixel_format, coded_size);
if (!layout) {
LOG(ERROR) << "Failed to create video frame layout";
return nullptr;
}
std::vector<base::ScopedFD> dmabuf_fds;
for (size_t i = 0; i < layout->num_planes(); i++) {
base::File file(base::FilePath("/dev/null"),
base::File::FLAG_OPEN | base::File::FLAG_READ);
if (!file.IsValid()) {
LOG(ERROR) << "Failed to open a file";
return nullptr;
}
dmabuf_fds.emplace_back(file.TakePlatformFile());
if (!dmabuf_fds.back().is_valid()) {
LOG(ERROR) << "The FD taken from file is not valid";
return nullptr;
}
}
return VideoFrame::WrapExternalDmabufs(*layout, visible_rect, natural_size,
std::move(dmabuf_fds),
base::TimeDelta());
}
class FakeGpuMemoryBufferFactory : public gpu::GpuMemoryBufferFactory {
public:
FakeGpuMemoryBufferFactory() = default;
~FakeGpuMemoryBufferFactory() override {
for (const auto& buffers : gpu_memory_buffers_) {
if (!buffers.second.empty()) {
LOG(ERROR) << "client_id=" << buffers.first
<< ", the number of unreleased buffers="
<< buffers.second.size();
ADD_FAILURE();
}
}
}
// gpu::GpuMemoryBufferFactory implementation.
gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
gfx::GpuMemoryBufferId id,
const gfx::Size& size,
const gfx::Size& framebuffer_size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
int client_id,
gpu::SurfaceHandle surface_handle) override {
if (base::Contains(gpu_memory_buffers_[client_id], id))
return gfx::GpuMemoryBufferHandle();
FakeGpuMemoryBuffer fake_gmb(size, format);
gfx::GpuMemoryBufferHandle handle = fake_gmb.CloneHandle();
handle.id = id;
gpu_memory_buffers_[client_id].insert(id);
return handle;
}
void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
int client_id) override {
ASSERT_TRUE(base::Contains(gpu_memory_buffers_, client_id));
ASSERT_TRUE(base::Contains(gpu_memory_buffers_[client_id], id));
gpu_memory_buffers_[client_id].erase(id);
}
// Type-checking downcast routine.
gpu::ImageFactory* AsImageFactory() override {
NOTIMPLEMENTED();
return nullptr;
}
private:
std::map<int, std::set<gfx::GpuMemoryBufferId>> gpu_memory_buffers_;
};
} // namespace
TEST(PlatformVideoFrameUtilsTest, CreateNativePixmapDmaBuf) {
constexpr VideoPixelFormat kPixelFormat = PIXEL_FORMAT_NV12;
constexpr gfx::Size kCodedSize(320, 240);
const base::Optional<gfx::BufferFormat> gfx_format =
VideoPixelFormatToGfxBufferFormat(kPixelFormat);
ASSERT_TRUE(gfx_format) << "Invalid pixel format: " << kPixelFormat;
scoped_refptr<VideoFrame> video_frame = CreateMockDmaBufVideoFrame(
kPixelFormat, kCodedSize, gfx::Rect(kCodedSize), kCodedSize);
ASSERT_TRUE(video_frame);
// Create a native pixmap and verify its metadata.
scoped_refptr<gfx::NativePixmapDmaBuf> native_pixmap =
CreateNativePixmapDmaBuf(video_frame.get());
ASSERT_TRUE(native_pixmap);
EXPECT_EQ(native_pixmap->GetBufferFormat(), *gfx_format);
EXPECT_EQ(native_pixmap->GetBufferFormatModifier(),
video_frame->layout().modifier());
// Verify the DMA Buf layouts are the same.
const size_t num_planes = video_frame->layout().num_planes();
ASSERT_EQ(native_pixmap->ExportHandle().planes.size(), num_planes);
for (size_t i = 0; i < num_planes; i++) {
const ColorPlaneLayout& plane = video_frame->layout().planes()[i];
// The original and duplicated FDs should be different.
EXPECT_NE(native_pixmap->GetDmaBufFd(i), video_frame->DmabufFds()[i].get());
EXPECT_EQ(native_pixmap->GetDmaBufPitch(i),
base::checked_cast<uint32_t>(plane.stride));
EXPECT_EQ(native_pixmap->GetDmaBufOffset(i), plane.offset);
EXPECT_EQ(native_pixmap->GetDmaBufPlaneSize(i), plane.size);
}
}
TEST(PlatformVideoFrameUtilsTest, CreateVideoFrame) {
constexpr VideoPixelFormat kPixelFormat = PIXEL_FORMAT_NV12;
constexpr gfx::Size kCodedSize(320, 240);
constexpr gfx::Rect kVisibleRect(kCodedSize);
constexpr gfx::Size kNaturalSize(kCodedSize);
constexpr auto kTimeStamp = base::TimeDelta::FromMilliseconds(1234);
constexpr gfx::BufferUsage kBufferUsage =
gfx::BufferUsage::SCANOUT_VEA_READ_CAMERA_AND_CPU_READ_WRITE;
auto gpu_memory_buffer_factory =
std::make_unique<FakeGpuMemoryBufferFactory>();
const VideoFrame::StorageType storage_types[] = {
VideoFrame::STORAGE_DMABUFS,
VideoFrame::STORAGE_GPU_MEMORY_BUFFER,
};
for (const auto& storage_type : storage_types) {
scoped_refptr<VideoFrame> frame;
switch (storage_type) {
case VideoFrame::STORAGE_DMABUFS:
frame = CreatePlatformVideoFrame(
gpu_memory_buffer_factory.get(), kPixelFormat, kCodedSize,
kVisibleRect, kNaturalSize, kTimeStamp, kBufferUsage);
break;
case VideoFrame::STORAGE_GPU_MEMORY_BUFFER:
frame = CreateGpuMemoryBufferVideoFrame(
gpu_memory_buffer_factory.get(), kPixelFormat, kCodedSize,
kVisibleRect, kNaturalSize, kTimeStamp, kBufferUsage);
break;
default:
NOTREACHED();
break;
};
ASSERT_TRUE(frame);
EXPECT_EQ(frame->format(), kPixelFormat);
EXPECT_EQ(frame->coded_size(), kCodedSize);
EXPECT_EQ(frame->visible_rect(), kVisibleRect);
EXPECT_EQ(frame->natural_size(), kNaturalSize);
EXPECT_EQ(frame->timestamp(), kTimeStamp);
EXPECT_EQ(frame->storage_type(), storage_type);
switch (storage_type) {
case VideoFrame::STORAGE_DMABUFS:
EXPECT_FALSE(frame->DmabufFds().empty());
break;
case VideoFrame::STORAGE_GPU_MEMORY_BUFFER:
EXPECT_TRUE(frame->GetGpuMemoryBuffer());
break;
default:
NOTREACHED();
break;
};
}
}
} // namespace media
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