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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/views/media_preview/camera_preview/camera_mediator.h"
#include "base/functional/bind.h"
#include "chrome/browser/media/prefs/capture_device_ranking.h"
#include "content/public/browser/video_capture_service.h"
#include "services/video_capture/public/mojom/video_capture_service.mojom.h"
CameraMediator::CameraMediator(PrefService& prefs,
DevicesChangedCallback devices_changed_callback)
: prefs_(&prefs),
devices_changed_callback_(std::move(devices_changed_callback)) {
devices_observer_.Observe(media_effects::MediaDeviceInfo::GetInstance());
content::GetVideoCaptureService().ConnectToVideoSourceProvider(
video_source_provider_.BindNewPipeAndPassReceiver());
video_source_provider_.reset_on_disconnect();
}
CameraMediator::~CameraMediator() = default;
void CameraMediator::BindVideoSource(
const std::string& device_id,
mojo::PendingReceiver<video_capture::mojom::VideoSource> source_receiver) {
if (video_source_provider_) {
video_source_provider_->GetVideoSource(device_id,
std::move(source_receiver));
}
}
void CameraMediator::InitializeDeviceList() {
// Get current list of video devices.
OnVideoDevicesChanged(
media_effects::MediaDeviceInfo::GetInstance()->GetVideoDeviceInfos());
}
void CameraMediator::OnVideoDevicesChanged(
const std::optional<std::vector<media::VideoCaptureDeviceInfo>>&
device_infos) {
if (!device_infos) {
devices_changed_callback_.Run({});
return;
}
is_device_list_initialized_ = true;
// Copy into a mutable vector in order to be re-ordered by
// `PreferenceRankDeviceInfos`.
auto ranked_device_infos = device_infos.value();
media_prefs::PreferenceRankVideoDeviceInfos(*prefs_, ranked_device_infos);
devices_changed_callback_.Run(ranked_device_infos);
}
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