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1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "content/browser/renderer_host/media/video_capture_provider_switcher.h" | |
6 | |
7 #include "base/callback_helpers.h" | |
8 | |
9 namespace content { | |
10 | |
11 namespace { | |
12 | |
13 class VideoCaptureDeviceLauncherSwitcher : public VideoCaptureDeviceLauncher { | |
14 public: | |
15 VideoCaptureDeviceLauncherSwitcher( | |
16 std::unique_ptr<VideoCaptureDeviceLauncher> media_device_launcher, | |
17 std::unique_ptr<VideoCaptureDeviceLauncher> other_types_launcher) | |
18 : media_device_launcher_(std::move(media_device_launcher)), | |
19 other_types_launcher_(std::move(other_types_launcher)) {} | |
20 | |
21 ~VideoCaptureDeviceLauncherSwitcher() override {} | |
22 | |
23 void LaunchDeviceAsync(const std::string& device_id, | |
24 MediaStreamType stream_type, | |
25 const media::VideoCaptureParams& params, | |
26 base::WeakPtr<media::VideoFrameReceiver> receiver, | |
27 Callbacks* callbacks, | |
28 base::OnceClosure done_cb) override { | |
29 if (stream_type == content::MEDIA_DEVICE_VIDEO_CAPTURE) { | |
30 // Use of Unretained() is safe, because |media_device_launcher_| is owned | |
31 // by |this|. | |
32 abort_launch_cb_ = | |
33 base::Bind(&VideoCaptureDeviceLauncher::AbortLaunch, | |
34 base::Unretained(media_device_launcher_.get())); | |
35 return media_device_launcher_->LaunchDeviceAsync( | |
36 device_id, stream_type, params, std::move(receiver), callbacks, | |
37 std::move(done_cb)); | |
38 } | |
39 // Use of Unretained() is safe, because |other_types_launcher_| is owned by | |
40 // |this|. | |
41 abort_launch_cb_ = | |
42 base::Bind(&VideoCaptureDeviceLauncher::AbortLaunch, | |
43 base::Unretained(other_types_launcher_.get())); | |
44 return other_types_launcher_->LaunchDeviceAsync( | |
45 device_id, stream_type, params, std::move(receiver), callbacks, | |
46 std::move(done_cb)); | |
47 } | |
48 | |
49 void AbortLaunch() override { | |
50 if (abort_launch_cb_.is_null()) | |
51 return; | |
52 base::ResetAndReturn(&abort_launch_cb_).Run(); | |
53 } | |
54 | |
55 private: | |
56 const std::unique_ptr<VideoCaptureDeviceLauncher> media_device_launcher_; | |
57 const std::unique_ptr<VideoCaptureDeviceLauncher> other_types_launcher_; | |
58 base::OnceClosure abort_launch_cb_; | |
59 }; | |
60 | |
61 } // anonymous namespace | |
62 | |
63 VideoCaptureProviderSwitcher::VideoCaptureProviderSwitcher( | |
64 std::unique_ptr<VideoCaptureProvider> media_device_capture_provider, | |
65 std::unique_ptr<VideoCaptureProvider> other_types_capture_provider) | |
66 : media_device_capture_provider_(std::move(media_device_capture_provider)), | |
67 other_types_capture_provider_(std::move(other_types_capture_provider)) {} | |
68 | |
69 VideoCaptureProviderSwitcher::~VideoCaptureProviderSwitcher() = default; | |
70 | |
71 void VideoCaptureProviderSwitcher::Uninitialize() { | |
72 media_device_capture_provider_->Uninitialize(); | |
73 other_types_capture_provider_->Uninitialize(); | |
74 } | |
75 | |
76 void VideoCaptureProviderSwitcher::GetDeviceInfosAsync( | |
77 const GetDeviceInfosCallback& result_callback) { | |
78 media_device_capture_provider_->GetDeviceInfosAsync(result_callback); | |
79 } | |
80 | |
81 std::unique_ptr<VideoCaptureDeviceLauncher> | |
82 VideoCaptureProviderSwitcher::CreateDeviceLauncher() { | |
83 return base::MakeUnique<VideoCaptureDeviceLauncherSwitcher>( | |
84 media_device_capture_provider_->CreateDeviceLauncher(), | |
85 other_types_capture_provider_->CreateDeviceLauncher()); | |
86 } | |
87 | |
88 } // namespace content | |
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