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content / browser / renderer_host / media / service_video_capture_device_launcher.cc [blame]
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/media/service_video_capture_device_launcher.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "build/build_config.h"
#include "content/browser/renderer_host/media/service_launched_video_capture_device.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "media/capture/capture_switches.h"
#include "media/capture/video/video_capture_device.h"
#include "media/capture/video/video_frame_receiver_on_task_runner.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "services/video_capture/public/cpp/receiver_media_to_mojo_adapter.h"
#include "services/video_capture/public/mojom/video_frame_handler.mojom.h"
#include "services/video_effects/public/mojom/video_effects_processor.mojom-forward.h"
#if BUILDFLAG(IS_WIN)
#include "media/base/media_switches.h"
#endif
#if BUILDFLAG(IS_LINUX)
#include "content/browser/gpu/gpu_data_manager_impl.h"
#endif
#if BUILDFLAG(IS_MAC)
#include "media/capture/video/apple/video_capture_device_factory_apple.h"
#endif
namespace content {
namespace {
void ConcludeLaunchDeviceWithSuccess(
mojo::Remote<video_capture::mojom::VideoSource> source,
mojo::Remote<video_capture::mojom::PushVideoStreamSubscription>
subscription,
base::OnceClosure connection_lost_cb,
VideoCaptureDeviceLauncher::Callbacks* callbacks,
base::OnceClosure done_cb) {
subscription->Activate();
callbacks->OnDeviceLaunched(
std::make_unique<ServiceLaunchedVideoCaptureDevice>(
std::move(source), std::move(subscription),
std::move(connection_lost_cb)));
std::move(done_cb).Run();
}
void ConcludeLaunchDeviceWithFailure(
bool abort_requested,
media::VideoCaptureError error,
scoped_refptr<RefCountedVideoSourceProvider> service_connection,
VideoCaptureDeviceLauncher::Callbacks* callbacks,
base::OnceClosure done_cb) {
service_connection.reset();
if (abort_requested)
callbacks->OnDeviceLaunchAborted();
else
callbacks->OnDeviceLaunchFailed(error);
std::move(done_cb).Run();
}
} // anonymous namespace
ServiceVideoCaptureDeviceLauncher::ServiceVideoCaptureDeviceLauncher(
ConnectToDeviceFactoryCB connect_to_source_provider_cb)
: connect_to_source_provider_cb_(std::move(connect_to_source_provider_cb)),
state_(State::READY_TO_LAUNCH),
callbacks_(nullptr) {}
ServiceVideoCaptureDeviceLauncher::~ServiceVideoCaptureDeviceLauncher() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(state_ == State::READY_TO_LAUNCH);
}
void ServiceVideoCaptureDeviceLauncher::LaunchDeviceAsync(
const std::string& device_id,
blink::mojom::MediaStreamType stream_type,
const media::VideoCaptureParams& params,
base::WeakPtr<media::VideoFrameReceiver> receiver,
base::OnceClosure connection_lost_cb,
Callbacks* callbacks,
base::OnceClosure done_cb,
mojo::PendingRemote<video_effects::mojom::VideoEffectsProcessor>
video_effects_processor) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(state_ == State::READY_TO_LAUNCH);
auto scoped_trace = ScopedCaptureTrace::CreateIfEnabled(
"ServiceVideoCaptureDeviceLauncher::LaunchDeviceAsync");
// This launcher only supports MediaStreamType::DEVICE_VIDEO_CAPTURE.
CHECK_EQ(stream_type, blink::mojom::MediaStreamType::DEVICE_VIDEO_CAPTURE);
connect_to_source_provider_cb_.Run(&service_connection_);
if (!service_connection_->source_provider().is_bound()) {
// This can happen when the connection to the service was lost.
ConcludeLaunchDeviceWithFailure(
false,
media::VideoCaptureError::
kServiceDeviceLauncherLostConnectionToDeviceFactoryDuringDeviceStart,
std::move(service_connection_), callbacks, std::move(done_cb));
return;
}
if (receiver) {
std::ostringstream string_stream;
string_stream
<< "ServiceVideoCaptureDeviceLauncher::LaunchDeviceAsync: Asking "
"video capture service to create source for device_id = "
<< device_id;
receiver->OnLog(string_stream.str());
}
// Ownership of |done_cb| is moved to |this|. It is not sufficient to attach
// it to the callback passed to CreatePushSubscription(), because the
// connection to the service may get torn down before |callbacks| are
// invoked.
done_cb_ = std::move(done_cb);
callbacks_ = callbacks;
mojo::Remote<video_capture::mojom::VideoSource> source;
service_connection_->source_provider()->GetVideoSource(
device_id, source.BindNewPipeAndPassReceiver());
if (video_effects_processor) {
source->RegisterVideoEffectsProcessor(std::move(video_effects_processor));
}
auto receiver_adapter =
std::make_unique<video_capture::ReceiverMediaToMojoAdapter>(
std::make_unique<media::VideoFrameReceiverOnTaskRunner>(
std::move(receiver), GetIOThreadTaskRunner({})));
mojo::PendingRemote<video_capture::mojom::VideoFrameHandler>
pending_remote_proxy;
mojo::MakeSelfOwnedReceiver(
std::move(receiver_adapter),
pending_remote_proxy.InitWithNewPipeAndPassReceiver());
mojo::Remote<video_capture::mojom::PushVideoStreamSubscription> subscription;
// Create message pipe so that we can subsequently call
// subscription.set_disconnect_handler().
auto subscription_receiver = subscription.BindNewPipeAndPassReceiver();
// Use of Unretained(this) is safe, because |done_cb_| guarantees that |this|
// stays alive.
subscription.set_disconnect_handler(
base::BindOnce(&ServiceVideoCaptureDeviceLauncher::
OnConnectionLostWhileWaitingForCallback,
base::Unretained(this)));
// TODO(crbug.com/40610987)
media::VideoCaptureParams new_params = params;
new_params.power_line_frequency =
media::VideoCaptureDevice::GetPowerLineFrequency(params);
// GpuMemoryBuffer-based VideoCapture buffer works only on the Chrome OS,
// Windows and Linux VideoCaptureDevice implementations.
#if BUILDFLAG(IS_WIN)
if (media::IsMediaFoundationD3D11VideoCaptureEnabled() &&
params.requested_format.pixel_format == media::PIXEL_FORMAT_NV12) {
new_params.buffer_type = media::VideoCaptureBufferType::kGpuMemoryBuffer;
}
#elif BUILDFLAG(IS_MAC)
// For mac(https://crbug.com/1175142), zero-copy is always enabled unless the
// user explicitly asks to disable it.
if (media::ShouldEnableGpuMemoryBuffer(device_id)) {
new_params.buffer_type = media::VideoCaptureBufferType::kGpuMemoryBuffer;
}
#else
if (switches::IsVideoCaptureUseGpuMemoryBufferEnabled()) {
#if BUILDFLAG(IS_LINUX)
// On Linux, additionally check whether the NV12 GPU memory buffer is
// supported.
if (GpuDataManagerImpl::GetInstance()->IsGpuMemoryBufferNV12Supported())
#endif
new_params.buffer_type = media::VideoCaptureBufferType::kGpuMemoryBuffer;
}
#endif
// Note that we set |force_reopen_with_new_settings| to true in order
// to avoid the situation that a requests to open (or reopen) a device
// that has just been closed with different settings ends up getting the old
// settings, because from the perspective of the service, the device was still
// in use. In order to be able to set |force_reopen_with_new_settings|, we
// have to refactor code here and upstream to wait for a callback from the
// service indicating that the device closing is complete.
video_capture::mojom::VideoSource* source_ptr = source.get();
source_ptr->CreatePushSubscription(
std::move(pending_remote_proxy), new_params,
true /*force_reopen_with_new_settings*/, std::move(subscription_receiver),
base::BindOnce(
// Use of Unretained |this| is safe, because |done_cb_| guarantees
// that |this| stays alive.
&ServiceVideoCaptureDeviceLauncher::OnCreatePushSubscriptionCallback,
base::Unretained(this), std::move(source), std::move(subscription),
std::move(connection_lost_cb), std::move(scoped_trace)));
state_ = State::DEVICE_START_IN_PROGRESS;
}
void ServiceVideoCaptureDeviceLauncher::AbortLaunch() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (state_ == State::DEVICE_START_IN_PROGRESS)
state_ = State::DEVICE_START_ABORTING;
}
void ServiceVideoCaptureDeviceLauncher::OnCreatePushSubscriptionCallback(
mojo::Remote<video_capture::mojom::VideoSource> source,
mojo::Remote<video_capture::mojom::PushVideoStreamSubscription>
subscription,
base::OnceClosure connection_lost_cb,
std::unique_ptr<ScopedCaptureTrace> scoped_trace,
video_capture::mojom::CreatePushSubscriptionResultCodePtr result_code,
const media::VideoCaptureParams& params) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(callbacks_);
DCHECK(done_cb_);
subscription.set_disconnect_handler(base::DoNothing());
const bool abort_requested = (state_ == State::DEVICE_START_ABORTING);
state_ = State::READY_TO_LAUNCH;
Callbacks* callbacks = callbacks_;
callbacks_ = nullptr;
switch (result_code->which()) {
case video_capture::mojom::CreatePushSubscriptionResultCode::Tag::
kSuccessCode:
if (abort_requested) {
subscription.reset();
source.reset();
service_connection_.reset();
callbacks->OnDeviceLaunchAborted();
std::move(done_cb_).Run();
return;
}
ConcludeLaunchDeviceWithSuccess(
std::move(source), std::move(subscription),
std::move(connection_lost_cb), callbacks, std::move(done_cb_));
return;
case video_capture::mojom::CreatePushSubscriptionResultCode::Tag::
kErrorCode:
media::VideoCaptureError error = result_code->get_error_code();
DCHECK_NE(error, media::VideoCaptureError::kNone);
ConcludeLaunchDeviceWithFailure(abort_requested, error,
std::move(service_connection_), callbacks,
std::move(done_cb_));
return;
}
}
void ServiceVideoCaptureDeviceLauncher::
OnConnectionLostWhileWaitingForCallback() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(callbacks_);
const bool abort_requested = (state_ == State::DEVICE_START_ABORTING);
state_ = State::READY_TO_LAUNCH;
Callbacks* callbacks = callbacks_;
callbacks_ = nullptr;
ConcludeLaunchDeviceWithFailure(
abort_requested,
media::VideoCaptureError::
kServiceDeviceLauncherConnectionLostWhileWaitingForCallback,
std::move(service_connection_), callbacks, std::move(done_cb_));
}
} // namespace content