| // Copyright 2018 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 "components/chromeos_camera/mojo_jpeg_encode_accelerator_service.h" |
| |
| #include <linux/videodev2.h> |
| #include <stdint.h> |
| #include <sys/mman.h> |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/logging.h" |
| #include "base/memory/ptr_util.h" |
| #include "base/memory/shared_memory.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "base/trace_event/trace_event.h" |
| #include "media/base/bind_to_current_loop.h" |
| #include "media/base/video_frame.h" |
| #include "mojo/public/cpp/bindings/strong_binding.h" |
| #include "mojo/public/cpp/system/platform_handle.h" |
| #include "ui/gfx/geometry/size.h" |
| #include "ui/gfx/linux/native_pixmap_dmabuf.h" |
| |
| namespace chromeos_camera { |
| |
| namespace { |
| |
| const int kJpegQuality = 90; |
| |
| scoped_refptr<media::VideoFrame> ConstructVideoFrame( |
| std::vector<chromeos_camera::mojom::DmaBufPlanePtr> dma_buf_planes, |
| media::VideoPixelFormat pixel_format, |
| int32_t width, |
| int32_t height) { |
| size_t num_planes = media::VideoFrame::NumPlanes(pixel_format); |
| if (num_planes != dma_buf_planes.size()) { |
| DLOG(ERROR) << "The amount of DMA buf planes does not match the format."; |
| return nullptr; |
| } |
| if (width <= 0 || height <= 0) { |
| DLOG(ERROR) << "Width and height should > 0: " << width << ", " << height; |
| return nullptr; |
| } |
| gfx::Size coded_size(width, height); |
| gfx::Rect visible_rect(coded_size); |
| |
| std::vector<base::ScopedFD> dma_buf_fds(num_planes); |
| std::vector<size_t> buffer_sizes(num_planes); |
| std::vector<media::VideoFrameLayout::Plane> planes(num_planes); |
| |
| for (size_t i = 0; i < num_planes; ++i) { |
| dma_buf_fds[i] = |
| mojo::UnwrapPlatformHandle(std::move(dma_buf_planes[i]->fd_handle)) |
| .TakeFD(); |
| planes[i].stride = dma_buf_planes[i]->stride; |
| planes[i].offset = dma_buf_planes[i]->offset; |
| buffer_sizes[i] = dma_buf_planes[i]->size; |
| } |
| auto layout = media::VideoFrameLayout::CreateWithPlanes( |
| pixel_format, coded_size, std::move(planes), std::move(buffer_sizes)); |
| |
| return media::VideoFrame::WrapExternalDmabufs( |
| *layout, // layout |
| visible_rect, // visible_rect |
| coded_size, // natural_size |
| std::move(dma_buf_fds), // dmabuf_fds |
| base::TimeDelta()); // timestamp |
| } |
| |
| media::VideoPixelFormat ToVideoPixelFormat(uint32_t fourcc_fmt) { |
| switch (fourcc_fmt) { |
| case V4L2_PIX_FMT_NV12: |
| case V4L2_PIX_FMT_NV12M: |
| return media::PIXEL_FORMAT_NV12; |
| |
| case V4L2_PIX_FMT_YUV420: |
| case V4L2_PIX_FMT_YUV420M: |
| return media::PIXEL_FORMAT_I420; |
| |
| case V4L2_PIX_FMT_RGB32: |
| return media::PIXEL_FORMAT_ARGB; |
| |
| default: |
| return media::PIXEL_FORMAT_UNKNOWN; |
| } |
| } |
| |
| } // namespace |
| |
| // static |
| void MojoJpegEncodeAcceleratorService::Create( |
| chromeos_camera::mojom::JpegEncodeAcceleratorRequest request) { |
| auto* jpeg_encoder = new MojoJpegEncodeAcceleratorService(); |
| mojo::MakeStrongBinding(base::WrapUnique(jpeg_encoder), std::move(request)); |
| } |
| |
| MojoJpegEncodeAcceleratorService::MojoJpegEncodeAcceleratorService() |
| : accelerator_factory_functions_( |
| GpuJpegEncodeAcceleratorFactory::GetAcceleratorFactories()) {} |
| |
| MojoJpegEncodeAcceleratorService::~MojoJpegEncodeAcceleratorService() { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| } |
| |
| void MojoJpegEncodeAcceleratorService::VideoFrameReady( |
| int32_t task_id, |
| size_t encoded_picture_size) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| NotifyEncodeStatus( |
| task_id, encoded_picture_size, |
| ::chromeos_camera::JpegEncodeAccelerator::Status::ENCODE_OK); |
| } |
| |
| void MojoJpegEncodeAcceleratorService::NotifyError( |
| int32_t task_id, |
| ::chromeos_camera::JpegEncodeAccelerator::Status error) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| NotifyEncodeStatus(task_id, 0, error); |
| } |
| |
| void MojoJpegEncodeAcceleratorService::Initialize(InitializeCallback callback) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| |
| // When adding non-chromeos platforms, VideoCaptureGpuJpegEncoder::Initialize |
| // needs to be updated. |
| |
| std::unique_ptr<::chromeos_camera::JpegEncodeAccelerator> accelerator; |
| for (const auto& create_jea_function : accelerator_factory_functions_) { |
| std::unique_ptr<::chromeos_camera::JpegEncodeAccelerator> tmp_accelerator = |
| create_jea_function.Run(base::ThreadTaskRunnerHandle::Get()); |
| if (tmp_accelerator && |
| tmp_accelerator->Initialize(this) == |
| ::chromeos_camera::JpegEncodeAccelerator::Status::ENCODE_OK) { |
| accelerator = std::move(tmp_accelerator); |
| break; |
| } |
| } |
| |
| if (!accelerator) { |
| DLOG(ERROR) << "JPEG accelerator initialization failed"; |
| std::move(callback).Run(false); |
| return; |
| } |
| |
| accelerator_ = std::move(accelerator); |
| std::move(callback).Run(true); |
| } |
| |
| void MojoJpegEncodeAcceleratorService::EncodeWithFD( |
| int32_t task_id, |
| mojo::ScopedHandle input_handle, |
| uint32_t input_buffer_size, |
| int32_t coded_size_width, |
| int32_t coded_size_height, |
| mojo::ScopedHandle exif_handle, |
| uint32_t exif_buffer_size, |
| mojo::ScopedHandle output_handle, |
| uint32_t output_buffer_size, |
| EncodeWithFDCallback callback) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| base::PlatformFile input_fd; |
| base::PlatformFile exif_fd; |
| base::PlatformFile output_fd; |
| MojoResult result; |
| |
| if (coded_size_width <= 0 || coded_size_height <= 0) { |
| std::move(callback).Run( |
| task_id, 0, |
| ::chromeos_camera::JpegEncodeAccelerator::Status::INVALID_ARGUMENT); |
| return; |
| } |
| |
| result = mojo::UnwrapPlatformFile(std::move(input_handle), &input_fd); |
| if (result != MOJO_RESULT_OK) { |
| std::move(callback).Run( |
| task_id, 0, |
| ::chromeos_camera::JpegEncodeAccelerator::Status::PLATFORM_FAILURE); |
| return; |
| } |
| |
| result = mojo::UnwrapPlatformFile(std::move(exif_handle), &exif_fd); |
| if (result != MOJO_RESULT_OK) { |
| std::move(callback).Run( |
| task_id, 0, |
| ::chromeos_camera::JpegEncodeAccelerator::Status::PLATFORM_FAILURE); |
| return; |
| } |
| |
| result = mojo::UnwrapPlatformFile(std::move(output_handle), &output_fd); |
| if (result != MOJO_RESULT_OK) { |
| std::move(callback).Run( |
| task_id, 0, |
| ::chromeos_camera::JpegEncodeAccelerator::Status::PLATFORM_FAILURE); |
| return; |
| } |
| |
| base::UnguessableToken input_guid = base::UnguessableToken::Create(); |
| base::UnguessableToken exif_guid = base::UnguessableToken::Create(); |
| base::UnguessableToken output_guid = base::UnguessableToken::Create(); |
| base::SharedMemoryHandle input_shm_handle( |
| base::FileDescriptor(input_fd, true), input_buffer_size, input_guid); |
| base::SharedMemoryHandle exif_shm_handle(base::FileDescriptor(exif_fd, true), |
| exif_buffer_size, exif_guid); |
| base::SharedMemoryHandle output_shm_handle( |
| base::FileDescriptor(output_fd, true), output_buffer_size, output_guid); |
| |
| media::BitstreamBuffer output_buffer( |
| task_id, output_shm_handle, false /* read_only */, output_buffer_size); |
| std::unique_ptr<media::BitstreamBuffer> exif_buffer; |
| if (exif_buffer_size > 0) { |
| exif_buffer = std::make_unique<media::BitstreamBuffer>( |
| task_id, exif_shm_handle, false /* read_only */, exif_buffer_size); |
| } |
| gfx::Size coded_size(coded_size_width, coded_size_height); |
| |
| if (encode_cb_map_.find(task_id) != encode_cb_map_.end()) { |
| mojo::ReportBadMessage("task_id is already registered in encode_cb_map_"); |
| return; |
| } |
| auto wrapped_callback = base::BindOnce( |
| [](int32_t task_id, EncodeWithFDCallback callback, |
| uint32_t encoded_picture_size, |
| ::chromeos_camera::JpegEncodeAccelerator::Status error) { |
| std::move(callback).Run(task_id, encoded_picture_size, error); |
| }, |
| task_id, std::move(callback)); |
| encode_cb_map_.emplace(task_id, std::move(wrapped_callback)); |
| |
| auto input_shm = std::make_unique<base::SharedMemory>(input_shm_handle, true); |
| if (!input_shm->Map(input_buffer_size)) { |
| DLOG(ERROR) << "Could not map input shared memory for buffer id " |
| << task_id; |
| NotifyEncodeStatus( |
| task_id, 0, |
| ::chromeos_camera::JpegEncodeAccelerator::Status::PLATFORM_FAILURE); |
| return; |
| } |
| |
| uint8_t* input_shm_memory = static_cast<uint8_t*>(input_shm->memory()); |
| scoped_refptr<media::VideoFrame> frame = |
| media::VideoFrame::WrapExternalSharedMemory( |
| media::PIXEL_FORMAT_I420, // format |
| coded_size, // coded_size |
| gfx::Rect(coded_size), // visible_rect |
| coded_size, // natural_size |
| input_shm_memory, // data |
| input_buffer_size, // data_size |
| input_shm_handle, // handle |
| 0, // data_offset |
| base::TimeDelta()); // timestamp |
| if (!frame.get()) { |
| LOG(ERROR) << "Could not create VideoFrame for buffer id " << task_id; |
| NotifyEncodeStatus( |
| task_id, 0, |
| ::chromeos_camera::JpegEncodeAccelerator::Status::PLATFORM_FAILURE); |
| return; |
| } |
| // Keep |input_shm| referenced until |frame| is destructed. |
| frame->AddDestructionObserver(base::BindOnce( |
| base::DoNothing::Once<std::unique_ptr<base::SharedMemory>>(), |
| base::Passed(&input_shm))); |
| |
| DCHECK(accelerator_); |
| accelerator_->Encode(frame, kJpegQuality, exif_buffer.get(), |
| std::move(output_buffer)); |
| } |
| |
| void MojoJpegEncodeAcceleratorService::EncodeWithDmaBuf( |
| int32_t task_id, |
| uint32_t input_format, |
| std::vector<chromeos_camera::mojom::DmaBufPlanePtr> input_planes, |
| std::vector<chromeos_camera::mojom::DmaBufPlanePtr> output_planes, |
| mojo::ScopedHandle exif_handle, |
| uint32_t exif_buffer_size, |
| int32_t coded_size_width, |
| int32_t coded_size_height, |
| EncodeWithDmaBufCallback callback) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| if (coded_size_width <= 0 || coded_size_height <= 0) { |
| std::move(callback).Run( |
| 0, ::chromeos_camera::JpegEncodeAccelerator::Status::INVALID_ARGUMENT); |
| return; |
| } |
| if (encode_cb_map_.find(task_id) != encode_cb_map_.end()) { |
| mojo::ReportBadMessage("task_id is already registered in encode_cb_map_"); |
| return; |
| } |
| |
| base::PlatformFile exif_fd; |
| auto result = mojo::UnwrapPlatformFile(std::move(exif_handle), &exif_fd); |
| if (result != MOJO_RESULT_OK) { |
| std::move(callback).Run( |
| 0, ::chromeos_camera::JpegEncodeAccelerator::Status::PLATFORM_FAILURE); |
| return; |
| } |
| |
| auto input_video_frame = ConstructVideoFrame( |
| std::move(input_planes), ToVideoPixelFormat(input_format), |
| coded_size_width, coded_size_height); |
| if (!input_video_frame) { |
| std::move(callback).Run( |
| 0, ::chromeos_camera::JpegEncodeAccelerator::Status::PLATFORM_FAILURE); |
| return; |
| } |
| auto output_video_frame = |
| ConstructVideoFrame(std::move(output_planes), media::PIXEL_FORMAT_MJPEG, |
| coded_size_width, coded_size_height); |
| if (!output_video_frame) { |
| std::move(callback).Run( |
| 0, ::chromeos_camera::JpegEncodeAccelerator::Status::PLATFORM_FAILURE); |
| return; |
| } |
| base::UnguessableToken exif_guid = base::UnguessableToken::Create(); |
| base::SharedMemoryHandle exif_shm_handle(base::FileDescriptor(exif_fd, true), |
| exif_buffer_size, exif_guid); |
| std::unique_ptr<media::BitstreamBuffer> exif_buffer; |
| if (exif_buffer_size > 0) { |
| // Currently we use our zero-based |task_id| as id of |exif_buffer| to track |
| // the encode task process from both Chrome OS and Chrome side. |
| exif_buffer = std::make_unique<media::BitstreamBuffer>( |
| task_id, exif_shm_handle, false /* read_only */, exif_buffer_size); |
| } |
| encode_cb_map_.emplace(task_id, std::move(callback)); |
| |
| DCHECK(accelerator_); |
| accelerator_->EncodeWithDmaBuf(input_video_frame, output_video_frame, |
| kJpegQuality, task_id, exif_buffer.get()); |
| } |
| |
| void MojoJpegEncodeAcceleratorService::NotifyEncodeStatus( |
| int32_t task_id, |
| size_t encoded_picture_size, |
| ::chromeos_camera::JpegEncodeAccelerator::Status error) { |
| DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); |
| |
| auto iter = encode_cb_map_.find(task_id); |
| DCHECK(iter != encode_cb_map_.end()); |
| EncodeWithDmaBufCallback encode_cb = std::move(iter->second); |
| encode_cb_map_.erase(iter); |
| std::move(encode_cb).Run(encoded_picture_size, error); |
| } |
| |
| } // namespace chromeos_camera |