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// 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/in_process_launched_video_capture_device.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback_forward.h"
#include "base/functional/callback_helpers.h"
#include "base/metrics/histogram_macros.h"
#include "base/task/bind_post_task.h"
#include "base/task/single_thread_task_runner.h"
#include "base/token.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/common/buildflags.h"
#include "media/capture/mojom/video_capture_types.mojom.h"
#include "media/media_buildflags.h"
#if BUILDFLAG(ENABLE_SCREEN_CAPTURE) && !BUILDFLAG(IS_ANDROID)
#include "content/browser/media/capture/desktop_capture_device.h"
#endif
namespace {
void StopAndReleaseDeviceOnDeviceThread(
std::unique_ptr<media::VideoCaptureDevice> device,
base::OnceClosure done_cb) {
device->StopAndDeAllocate();
DVLOG(3) << "StopAndReleaseDeviceOnDeviceThread";
device.reset();
std::move(done_cb).Run();
}
} // anonymous namespace
namespace content {
InProcessLaunchedVideoCaptureDevice::InProcessLaunchedVideoCaptureDevice(
std::unique_ptr<media::VideoCaptureDevice> device,
scoped_refptr<base::SingleThreadTaskRunner> device_task_runner)
: device_(std::move(device)),
device_task_runner_(std::move(device_task_runner)) {}
InProcessLaunchedVideoCaptureDevice::~InProcessLaunchedVideoCaptureDevice() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DCHECK(device_);
device_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&StopAndReleaseDeviceOnDeviceThread, std::move(device_),
base::DoNothingWithBoundArgs(device_task_runner_)));
}
void InProcessLaunchedVideoCaptureDevice::GetPhotoState(
media::VideoCaptureDevice::GetPhotoStateCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Unretained() is safe to use here because |device| would be null if it
// was scheduled for shutdown and destruction, and because this task is
// guaranteed to run before the task that destroys the |device|.
device_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&media::VideoCaptureDevice::GetPhotoState,
base::Unretained(device_.get()), std::move(callback)));
}
void InProcessLaunchedVideoCaptureDevice::SetPhotoOptions(
media::mojom::PhotoSettingsPtr settings,
media::VideoCaptureDevice::SetPhotoOptionsCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Unretained() is safe to use here because |device| would be null if it
// was scheduled for shutdown and destruction, and because this task is
// guaranteed to run before the task that destroys the |device|.
device_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&media::VideoCaptureDevice::SetPhotoOptions,
base::Unretained(device_.get()),
std::move(settings), std::move(callback)));
}
void InProcessLaunchedVideoCaptureDevice::TakePhoto(
media::VideoCaptureDevice::TakePhotoCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("video_and_image_capture"),
"InProcessLaunchedVideoCaptureDevice::TakePhoto",
TRACE_EVENT_SCOPE_PROCESS);
// Unretained() is safe to use here because |device| would be null if it
// was scheduled for shutdown and destruction, and because this task is
// guaranteed to run before the task that destroys the |device|.
device_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&media::VideoCaptureDevice::TakePhoto,
base::Unretained(device_.get()), std::move(callback)));
}
void InProcessLaunchedVideoCaptureDevice::MaybeSuspendDevice() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Unretained() is safe to use here because |device| would be null if it
// was scheduled for shutdown and destruction, and because this task is
// guaranteed to run before the task that destroys the |device|.
device_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&media::VideoCaptureDevice::MaybeSuspend,
base::Unretained(device_.get())));
}
void InProcessLaunchedVideoCaptureDevice::ResumeDevice() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Unretained() is safe to use here because |device| would be null if it
// was scheduled for shutdown and destruction, and because this task is
// guaranteed to run before the task that destroys the |device|.
device_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&media::VideoCaptureDevice::Resume,
base::Unretained(device_.get())));
}
void InProcessLaunchedVideoCaptureDevice::ApplySubCaptureTarget(
media::mojom::SubCaptureTargetType type,
const base::Token& target,
uint32_t sub_capture_target_version,
base::OnceCallback<void(media::mojom::ApplySubCaptureTargetResult)>
callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Unretained() is safe to use here because |device| would be null if it
// was scheduled for shutdown and destruction, and because this task is
// guaranteed to run before the task that destroys the |device|.
//
// Explicitly bind the callback to the I/O thread since the VideoCaptureDevice
// ApplySubCaptureTarget method runs the callback on an unspecified thread.
device_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&media::VideoCaptureDevice::ApplySubCaptureTarget,
base::Unretained(device_.get()), type, target,
sub_capture_target_version,
base::BindPostTask(content::GetIOThreadTaskRunner({}),
std::move(callback))));
}
void InProcessLaunchedVideoCaptureDevice::RequestRefreshFrame() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Unretained() is safe to use here because |device| would be null if it
// was scheduled for shutdown and destruction, and because this task is
// guaranteed to run before the task that destroys the |device|.
device_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&media::VideoCaptureDevice::RequestRefreshFrame,
base::Unretained(device_.get())));
}
void InProcessLaunchedVideoCaptureDevice::SetDesktopCaptureWindowIdAsync(
gfx::NativeViewId window_id,
base::OnceClosure done_cb) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Post |device_| to the the device_task_runner_. This is safe since the
// device is destroyed on the device_task_runner_ and |done_cb|
// guarantees that |this| stays alive.
device_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&InProcessLaunchedVideoCaptureDevice::
SetDesktopCaptureWindowIdOnDeviceThread,
base::Unretained(this), device_.get(),
window_id, std::move(done_cb)));
}
void InProcessLaunchedVideoCaptureDevice::OnUtilizationReport(
media::VideoCaptureFeedback feedback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Unretained() is safe to use here because |device| would be null if it
// was scheduled for shutdown and destruction, and because this task is
// guaranteed to run before the task that destroys the |device|.
device_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&media::VideoCaptureDevice::OnUtilizationReport,
base::Unretained(device_.get()), feedback));
}
void InProcessLaunchedVideoCaptureDevice::
SetDesktopCaptureWindowIdOnDeviceThread(media::VideoCaptureDevice* device,
gfx::NativeViewId window_id,
base::OnceClosure done_cb) {
DCHECK(device_task_runner_->BelongsToCurrentThread());
#if defined(ENABLE_SCREEN_CAPTURE) && !BUILDFLAG(IS_ANDROID)
auto* desktop_device = static_cast<DesktopCaptureDevice*>(device);
desktop_device->SetNotificationWindowId(window_id);
VLOG(2) << "Screen capture notification window passed on device thread.";
#endif
std::move(done_cb).Run();
}
} // namespace content
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