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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_video_capture_provider.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/task/single_thread_task_runner.h"
#include "content/browser/renderer_host/media/in_process_video_capture_device_launcher.h"
namespace content {
InProcessVideoCaptureProvider::InProcessVideoCaptureProvider(
std::unique_ptr<media::VideoCaptureSystem> video_capture_system,
scoped_refptr<base::SingleThreadTaskRunner> device_task_runner,
base::RepeatingCallback<void(const std::string&)> emit_log_message_cb)
: video_capture_system_(std::move(video_capture_system)),
device_task_runner_(std::move(device_task_runner)),
emit_log_message_cb_(std::move(emit_log_message_cb)) {
DETACH_FROM_SEQUENCE(sequence_checker_);
}
InProcessVideoCaptureProvider::~InProcessVideoCaptureProvider() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (video_capture_system_ && !device_task_runner_->BelongsToCurrentThread()) {
device_task_runner_->DeleteSoon(FROM_HERE,
std::move(video_capture_system_));
}
}
// static
std::unique_ptr<VideoCaptureProvider>
InProcessVideoCaptureProvider::CreateInstanceForNonDeviceCapture(
scoped_refptr<base::SingleThreadTaskRunner> device_task_runner,
base::RepeatingCallback<void(const std::string&)> emit_log_message_cb) {
return std::make_unique<InProcessVideoCaptureProvider>(
nullptr, std::move(device_task_runner), std::move(emit_log_message_cb));
}
// static
std::unique_ptr<VideoCaptureProvider>
InProcessVideoCaptureProvider::CreateInstance(
std::unique_ptr<media::VideoCaptureSystem> video_capture_system,
scoped_refptr<base::SingleThreadTaskRunner> device_task_runner,
base::RepeatingCallback<void(const std::string&)> emit_log_message_cb) {
return std::make_unique<InProcessVideoCaptureProvider>(
std::move(video_capture_system), std::move(device_task_runner),
std::move(emit_log_message_cb));
}
void InProcessVideoCaptureProvider::GetDeviceInfosAsync(
GetDeviceInfosCallback result_callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (!video_capture_system_) {
emit_log_message_cb_.Run(
"InProcessVideoCaptureProvider::GetDeviceInfosAsync: No video capture "
"system, returning empty results.");
std::move(result_callback)
.Run(media::mojom::DeviceEnumerationResult::kUnknownError, {});
return;
}
emit_log_message_cb_.Run(
"InProcessVideoCaptureProvider::GetDeviceInfosAsync");
// Using Unretained() is safe because |this| owns
// |video_capture_system_| and |result_callback| has ownership of
// |this|.
device_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(
&media::VideoCaptureSystem::GetDeviceInfosAsync,
base::Unretained(video_capture_system_.get()),
base::BindOnce(std::move(result_callback),
media::mojom::DeviceEnumerationResult::kSuccess)));
}
std::unique_ptr<VideoCaptureDeviceLauncher>
InProcessVideoCaptureProvider::CreateDeviceLauncher() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return std::make_unique<InProcessVideoCaptureDeviceLauncher>(
device_task_runner_, video_capture_system_.get());
}
} // namespace content
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