| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // 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/media_stream_manager.h" |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <algorithm> |
| #include <cctype> |
| #include <list> |
| |
| #include "base/bind.h" |
| #include "base/command_line.h" |
| #include "base/compiler_specific.h" |
| #include "base/logging.h" |
| #include "base/macros.h" |
| #include "base/power_monitor/power_monitor.h" |
| #include "base/profiler/scoped_tracker.h" |
| #include "base/rand_util.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/task_runner_util.h" |
| #include "base/threading/thread.h" |
| #include "base/threading/thread_local.h" |
| #include "build/build_config.h" |
| #include "content/browser/child_process_security_policy_impl.h" |
| #include "content/browser/renderer_host/media/audio_input_device_manager.h" |
| #include "content/browser/renderer_host/media/media_capture_devices_impl.h" |
| #include "content/browser/renderer_host/media/media_devices_manager.h" |
| #include "content/browser/renderer_host/media/media_stream_requester.h" |
| #include "content/browser/renderer_host/media/media_stream_ui_proxy.h" |
| #include "content/browser/renderer_host/media/video_capture_manager.h" |
| #include "content/browser/renderer_host/render_process_host_impl.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/browser/content_browser_client.h" |
| #include "content/public/browser/desktop_media_id.h" |
| #include "content/public/browser/media_observer.h" |
| #include "content/public/browser/render_process_host.h" |
| #include "content/public/browser/web_contents_media_capture_id.h" |
| #include "content/public/common/content_client.h" |
| #include "content/public/common/content_switches.h" |
| #include "content/public/common/media_stream_request.h" |
| #include "crypto/hmac.h" |
| #include "media/audio/audio_device_description.h" |
| #include "media/audio/audio_manager.h" |
| #include "media/base/audio_parameters.h" |
| #include "media/base/channel_layout.h" |
| #include "media/base/media_switches.h" |
| #include "media/capture/video/video_capture_device_factory.h" |
| #include "url/gurl.h" |
| #include "url/origin.h" |
| |
| #if defined(OS_WIN) |
| #include "base/win/scoped_com_initializer.h" |
| #endif |
| |
| #if defined(OS_CHROMEOS) |
| #include "chromeos/audio/cras_audio_handler.h" |
| #endif |
| |
| namespace content { |
| |
| base::LazyInstance<base::ThreadLocalPointer<MediaStreamManager>>::Leaky |
| g_media_stream_manager_tls_ptr = LAZY_INSTANCE_INITIALIZER; |
| |
| namespace { |
| // Creates a random label used to identify requests. |
| std::string RandomLabel() { |
| // An earlier PeerConnection spec [1] defined MediaStream::label alphabet as |
| // an uuid with characters from range: U+0021, U+0023 to U+0027, U+002A to |
| // U+002B, U+002D to U+002E, U+0030 to U+0039, U+0041 to U+005A, U+005E to |
| // U+007E. That causes problems with searching for labels in bots, so we use a |
| // safe alphanumeric subset |kAlphabet|. |
| // [1] http://dev.w3.org/2011/webrtc/editor/webrtc.html |
| static const char kAlphabet[] = "0123456789" |
| "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; |
| |
| static const size_t kRfc4122LengthLabel = 36u; |
| std::string label(kRfc4122LengthLabel, ' '); |
| for (char& c : label) { |
| // Use |arraysize(kAlphabet) - 1| to avoid |kAlphabet|s terminating '\0'; |
| c = kAlphabet[base::RandGenerator(arraysize(kAlphabet) - 1)]; |
| DCHECK(std::isalnum(c)) << c; |
| } |
| return label; |
| } |
| |
| void ParseStreamType(const StreamControls& controls, |
| MediaStreamType* audio_type, |
| MediaStreamType* video_type) { |
| *audio_type = MEDIA_NO_SERVICE; |
| *video_type = MEDIA_NO_SERVICE; |
| const bool audio_support_flag_for_desktop_share = |
| !base::CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kDisableAudioSupportForDesktopShare); |
| if (controls.audio.requested) { |
| if (!controls.audio.stream_source.empty()) { |
| // This is tab or screen capture. |
| if (controls.audio.stream_source == kMediaStreamSourceTab) { |
| *audio_type = content::MEDIA_TAB_AUDIO_CAPTURE; |
| } else if (controls.audio.stream_source == kMediaStreamSourceSystem) { |
| *audio_type = content::MEDIA_DESKTOP_AUDIO_CAPTURE; |
| } else if (audio_support_flag_for_desktop_share && |
| controls.audio.stream_source == kMediaStreamSourceDesktop) { |
| *audio_type = content::MEDIA_DESKTOP_AUDIO_CAPTURE; |
| } |
| } else { |
| // This is normal audio device capture. |
| *audio_type = MEDIA_DEVICE_AUDIO_CAPTURE; |
| } |
| } |
| if (controls.video.requested) { |
| if (!controls.video.stream_source.empty()) { |
| // This is tab or screen capture. |
| if (controls.video.stream_source == kMediaStreamSourceTab) { |
| *video_type = content::MEDIA_TAB_VIDEO_CAPTURE; |
| } else if (controls.video.stream_source == kMediaStreamSourceScreen) { |
| *video_type = content::MEDIA_DESKTOP_VIDEO_CAPTURE; |
| } else if (controls.video.stream_source == kMediaStreamSourceDesktop) { |
| *video_type = content::MEDIA_DESKTOP_VIDEO_CAPTURE; |
| } |
| } else { |
| // This is normal video device capture. |
| *video_type = MEDIA_DEVICE_VIDEO_CAPTURE; |
| } |
| } |
| } |
| |
| // Turns off available audio effects (removes the flag) if the options |
| // explicitly turn them off. |
| void FilterAudioEffects(const StreamControls& controls, int* effects) { |
| DCHECK(effects); |
| // TODO(ajm): Should we handle ECHO_CANCELLER here? |
| } |
| |
| // Unlike other effects, hotword is off by default, so turn it on if it's |
| // requested and available. |
| void EnableHotwordEffect(const StreamControls& controls, int* effects) { |
| DCHECK(effects); |
| if (controls.hotword_enabled) { |
| #if defined(OS_CHROMEOS) |
| chromeos::AudioDeviceList devices; |
| chromeos::CrasAudioHandler::Get()->GetAudioDevices(&devices); |
| // Only enable if a hotword device exists. |
| for (const chromeos::AudioDevice& device : devices) { |
| if (device.type == chromeos::AUDIO_TYPE_HOTWORD) { |
| DCHECK(device.is_input); |
| *effects |= media::AudioParameters::HOTWORD; |
| } |
| } |
| #endif |
| } |
| } |
| |
| // Clears the MediaStreamDevice.name from all devices in |devices|. |
| void ClearDeviceLabels(content::StreamDeviceInfoArray* devices) { |
| for (content::StreamDeviceInfo& device_info : *devices) |
| device_info.device.name.clear(); |
| } |
| |
| bool CalledOnIOThread() { |
| // Check if this function call is on the IO thread, except for unittests where |
| // an IO thread might not have been created. |
| return BrowserThread::CurrentlyOn(BrowserThread::IO) || |
| !BrowserThread::IsMessageLoopValid(BrowserThread::IO); |
| } |
| |
| GURL ConvertToGURL(const url::Origin& origin) { |
| return origin.unique() ? GURL() : GURL(origin.Serialize()); |
| } |
| |
| bool GetDeviceIDFromHMAC(const std::string& salt, |
| const url::Origin& security_origin, |
| const std::string& hmac_device_id, |
| const MediaDeviceInfoArray& devices, |
| std::string* device_id) { |
| // The source_id can be empty if the constraint is set but empty. |
| if (hmac_device_id.empty()) |
| return false; |
| |
| for (const auto& device_info : devices) { |
| if (MediaStreamManager::DoesMediaDeviceIDMatchHMAC( |
| salt, security_origin, hmac_device_id, device_info.device_id)) { |
| *device_id = device_info.device_id; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| MediaStreamType ConvertToMediaStreamType(MediaDeviceType type) { |
| switch (type) { |
| case MEDIA_DEVICE_TYPE_AUDIO_INPUT: |
| return MEDIA_DEVICE_AUDIO_CAPTURE; |
| case MEDIA_DEVICE_TYPE_VIDEO_INPUT: |
| return MEDIA_DEVICE_VIDEO_CAPTURE; |
| case MEDIA_DEVICE_TYPE_AUDIO_OUTPUT: |
| return MEDIA_DEVICE_AUDIO_OUTPUT; |
| default: |
| NOTREACHED(); |
| } |
| |
| return MEDIA_NO_SERVICE; |
| } |
| |
| MediaDeviceType ConvertToMediaDeviceType(MediaStreamType stream_type) { |
| switch (stream_type) { |
| case MEDIA_DEVICE_AUDIO_CAPTURE: |
| return MEDIA_DEVICE_TYPE_AUDIO_INPUT; |
| case MEDIA_DEVICE_VIDEO_CAPTURE: |
| return MEDIA_DEVICE_TYPE_VIDEO_INPUT; |
| case MEDIA_DEVICE_AUDIO_OUTPUT: |
| return MEDIA_DEVICE_TYPE_AUDIO_OUTPUT; |
| default: |
| NOTREACHED(); |
| } |
| |
| return NUM_MEDIA_DEVICE_TYPES; |
| } |
| |
| StreamDeviceInfoArray ConvertToStreamDeviceInfoArray( |
| MediaStreamType stream_type, |
| const MediaDeviceInfoArray& device_infos) { |
| StreamDeviceInfoArray stream_devices; |
| for (const auto& info : device_infos) { |
| stream_devices.emplace_back(stream_type, info.label, info.device_id, |
| info.group_id); |
| } |
| |
| return stream_devices; |
| } |
| |
| MediaStreamDevices ConvertToMediaStreamDevices( |
| MediaStreamType stream_type, |
| const MediaDeviceInfoArray& device_infos) { |
| MediaStreamDevices devices; |
| for (const auto& info : device_infos) { |
| devices.emplace_back(stream_type, info.device_id, info.label, |
| info.group_id); |
| } |
| |
| return devices; |
| } |
| |
| } // namespace |
| |
| |
| // MediaStreamManager::DeviceRequest represents a request to either enumerate |
| // available devices or open one or more devices. |
| // TODO(perkj): MediaStreamManager still needs refactoring. I propose we create |
| // several subclasses of DeviceRequest and move some of the responsibility of |
| // the MediaStreamManager to the subclasses to get rid of the way too many if |
| // statements in MediaStreamManager. |
| class MediaStreamManager::DeviceRequest { |
| public: |
| DeviceRequest(MediaStreamRequester* requester, |
| int requesting_process_id, |
| int requesting_frame_id, |
| int page_request_id, |
| const url::Origin& security_origin, |
| bool user_gesture, |
| MediaStreamRequestType request_type, |
| const StreamControls& controls, |
| const std::string& salt) |
| : requester(requester), |
| requesting_process_id(requesting_process_id), |
| requesting_frame_id(requesting_frame_id), |
| page_request_id(page_request_id), |
| security_origin(security_origin), |
| user_gesture(user_gesture), |
| request_type(request_type), |
| controls(controls), |
| salt(salt), |
| state_(NUM_MEDIA_TYPES, MEDIA_REQUEST_STATE_NOT_REQUESTED), |
| audio_type_(MEDIA_NO_SERVICE), |
| video_type_(MEDIA_NO_SERVICE), |
| target_process_id_(-1), |
| target_frame_id_(-1) {} |
| |
| ~DeviceRequest() {} |
| |
| void SetAudioType(MediaStreamType audio_type) { |
| DCHECK(IsAudioInputMediaType(audio_type) || |
| audio_type == MEDIA_DEVICE_AUDIO_OUTPUT || |
| audio_type == MEDIA_NO_SERVICE); |
| audio_type_ = audio_type; |
| } |
| |
| MediaStreamType audio_type() const { return audio_type_; } |
| |
| void SetVideoType(MediaStreamType video_type) { |
| DCHECK(IsVideoMediaType(video_type) || video_type == MEDIA_NO_SERVICE); |
| video_type_ = video_type; |
| } |
| |
| MediaStreamType video_type() const { return video_type_; } |
| |
| // Creates a MediaStreamRequest object that is used by this request when UI |
| // is asked for permission and device selection. |
| void CreateUIRequest(const std::string& requested_audio_device_id, |
| const std::string& requested_video_device_id) { |
| DCHECK(!ui_request_); |
| target_process_id_ = requesting_process_id; |
| target_frame_id_ = requesting_frame_id; |
| ui_request_.reset(new MediaStreamRequest( |
| requesting_process_id, requesting_frame_id, page_request_id, |
| ConvertToGURL(security_origin), user_gesture, request_type, |
| requested_audio_device_id, requested_video_device_id, audio_type_, |
| video_type_)); |
| } |
| |
| // Creates a tab capture specific MediaStreamRequest object that is used by |
| // this request when UI is asked for permission and device selection. |
| void CreateTabCaptureUIRequest(int target_render_process_id, |
| int target_render_frame_id) { |
| DCHECK(!ui_request_); |
| target_process_id_ = target_render_process_id; |
| target_frame_id_ = target_render_frame_id; |
| ui_request_.reset(new MediaStreamRequest( |
| target_render_process_id, target_render_frame_id, page_request_id, |
| ConvertToGURL(security_origin), user_gesture, request_type, "", "", |
| audio_type_, video_type_)); |
| } |
| |
| bool HasUIRequest() const { return ui_request_.get() != nullptr; } |
| std::unique_ptr<MediaStreamRequest> DetachUIRequest() { |
| return std::move(ui_request_); |
| } |
| |
| // Update the request state and notify observers. |
| void SetState(MediaStreamType stream_type, MediaRequestState new_state) { |
| if (stream_type == NUM_MEDIA_TYPES) { |
| for (int i = MEDIA_NO_SERVICE + 1; i < NUM_MEDIA_TYPES; ++i) { |
| const MediaStreamType stream_type = static_cast<MediaStreamType>(i); |
| state_[stream_type] = new_state; |
| } |
| } else { |
| state_[stream_type] = new_state; |
| } |
| |
| MediaObserver* media_observer = |
| GetContentClient()->browser()->GetMediaObserver(); |
| if (!media_observer) |
| return; |
| |
| media_observer->OnMediaRequestStateChanged( |
| target_process_id_, target_frame_id_, page_request_id, |
| ConvertToGURL(security_origin), stream_type, new_state); |
| } |
| |
| MediaRequestState state(MediaStreamType stream_type) const { |
| return state_[stream_type]; |
| } |
| |
| void SetCapturingLinkSecured(bool is_secure) { |
| MediaObserver* media_observer = |
| GetContentClient()->browser()->GetMediaObserver(); |
| if (!media_observer) |
| return; |
| |
| media_observer->OnSetCapturingLinkSecured(target_process_id_, |
| target_frame_id_, page_request_id, |
| video_type_, is_secure); |
| } |
| |
| MediaStreamRequester* const requester; // Can be NULL. |
| |
| |
| // The render process id that requested this stream to be generated and that |
| // will receive a handle to the MediaStream. This may be different from |
| // MediaStreamRequest::render_process_id which in the tab capture case |
| // specifies the target renderer from which audio and video is captured. |
| const int requesting_process_id; |
| |
| // The render frame id that requested this stream to be generated and that |
| // will receive a handle to the MediaStream. This may be different from |
| // MediaStreamRequest::render_frame_id which in the tab capture case |
| // specifies the target renderer from which audio and video is captured. |
| const int requesting_frame_id; |
| |
| // An ID the render frame provided to identify this request. |
| const int page_request_id; |
| |
| const url::Origin security_origin; |
| |
| const bool user_gesture; |
| |
| const MediaStreamRequestType request_type; |
| |
| const StreamControls controls; |
| |
| const std::string salt; |
| |
| StreamDeviceInfoArray devices; |
| |
| // Callback to the requester which audio/video devices have been selected. |
| // It can be null if the requester has no interest to know the result. |
| // Currently it is only used by |DEVICE_ACCESS| type. |
| MediaStreamManager::MediaRequestResponseCallback callback; |
| |
| std::unique_ptr<MediaStreamUIProxy> ui_proxy; |
| |
| std::string tab_capture_device_id; |
| |
| private: |
| std::vector<MediaRequestState> state_; |
| std::unique_ptr<MediaStreamRequest> ui_request_; |
| MediaStreamType audio_type_; |
| MediaStreamType video_type_; |
| int target_process_id_; |
| int target_frame_id_; |
| }; |
| |
| // static |
| void MediaStreamManager::SendMessageToNativeLog(const std::string& message) { |
| if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) { |
| BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, |
| base::Bind(&MediaStreamManager::SendMessageToNativeLog, message)); |
| return; |
| } |
| |
| MediaStreamManager* msm = g_media_stream_manager_tls_ptr.Pointer()->Get(); |
| if (!msm) { |
| DLOG(ERROR) << "No MediaStreamManager on the IO thread. " << message; |
| return; |
| } |
| |
| msm->AddLogMessageOnIOThread(message); |
| } |
| |
| MediaStreamManager::MediaStreamManager(media::AudioManager* audio_manager) |
| : audio_manager_(audio_manager), |
| #if defined(OS_WIN) |
| video_capture_thread_("VideoCaptureThread"), |
| #endif |
| use_fake_ui_(base::CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kUseFakeUIForMediaStream)) { |
| DCHECK(audio_manager_); |
| |
| // Some unit tests create the MSM in the IO thread and assumes the |
| // initialization is done synchronously. |
| if (BrowserThread::CurrentlyOn(BrowserThread::IO)) { |
| InitializeDeviceManagersOnIOThread(); |
| } else { |
| BrowserThread::PostTask( |
| BrowserThread::IO, FROM_HERE, |
| base::Bind(&MediaStreamManager::InitializeDeviceManagersOnIOThread, |
| base::Unretained(this))); |
| } |
| |
| base::PowerMonitor* power_monitor = base::PowerMonitor::Get(); |
| // BrowserMainLoop always creates the PowerMonitor instance before creating |
| // MediaStreamManager, but power_monitor may be NULL in unit tests. |
| if (power_monitor) |
| power_monitor->AddObserver(this); |
| } |
| |
| MediaStreamManager::~MediaStreamManager() { |
| DCHECK(!BrowserThread::IsThreadInitialized(BrowserThread::IO)); |
| DVLOG(1) << "~MediaStreamManager"; |
| DCHECK(requests_.empty()); |
| DCHECK(!device_task_runner_.get()); |
| DCHECK(device_change_subscribers_.empty()); |
| |
| base::PowerMonitor* power_monitor = base::PowerMonitor::Get(); |
| // The PowerMonitor instance owned by BrowserMainLoops always outlives the |
| // MediaStreamManager, but it may be NULL in unit tests. |
| if (power_monitor) |
| power_monitor->RemoveObserver(this); |
| } |
| |
| VideoCaptureManager* MediaStreamManager::video_capture_manager() { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(video_capture_manager_.get()); |
| return video_capture_manager_.get(); |
| } |
| |
| AudioInputDeviceManager* MediaStreamManager::audio_input_device_manager() { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(audio_input_device_manager_.get()); |
| return audio_input_device_manager_.get(); |
| } |
| |
| MediaDevicesManager* MediaStreamManager::media_devices_manager() { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(media_devices_manager_.get()); |
| return media_devices_manager_.get(); |
| } |
| |
| std::string MediaStreamManager::MakeMediaAccessRequest( |
| int render_process_id, |
| int render_frame_id, |
| int page_request_id, |
| const StreamControls& controls, |
| const url::Origin& security_origin, |
| const MediaRequestResponseCallback& callback) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| // TODO(perkj): The argument list with NULL parameters to DeviceRequest |
| // suggests that this is the wrong design. Can this be refactored? |
| DeviceRequest* request = |
| new DeviceRequest(NULL, render_process_id, render_frame_id, |
| page_request_id, security_origin, |
| false, // user gesture |
| MEDIA_DEVICE_ACCESS, controls, std::string()); |
| |
| const std::string& label = AddRequest(request); |
| |
| request->callback = callback; |
| // Post a task and handle the request asynchronously. The reason is that the |
| // requester won't have a label for the request until this function returns |
| // and thus can not handle a response. Using base::Unretained is safe since |
| // MediaStreamManager is deleted on the UI thread, after the IO thread has |
| // been stopped. |
| BrowserThread::PostTask( |
| BrowserThread::IO, FROM_HERE, |
| base::Bind(&MediaStreamManager::SetupRequest, |
| base::Unretained(this), label)); |
| return label; |
| } |
| |
| void MediaStreamManager::GenerateStream(MediaStreamRequester* requester, |
| int render_process_id, |
| int render_frame_id, |
| const std::string& salt, |
| int page_request_id, |
| const StreamControls& controls, |
| const url::Origin& security_origin, |
| bool user_gesture) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DVLOG(1) << "GenerateStream()"; |
| |
| DeviceRequest* request = new DeviceRequest( |
| requester, render_process_id, render_frame_id, page_request_id, |
| security_origin, user_gesture, MEDIA_GENERATE_STREAM, controls, salt); |
| |
| const std::string& label = AddRequest(request); |
| |
| // Post a task and handle the request asynchronously. The reason is that the |
| // requester won't have a label for the request until this function returns |
| // and thus can not handle a response. Using base::Unretained is safe since |
| // MediaStreamManager is deleted on the UI thread, after the IO thread has |
| // been stopped. |
| BrowserThread::PostTask( |
| BrowserThread::IO, FROM_HERE, |
| base::Bind(&MediaStreamManager::SetupRequest, |
| base::Unretained(this), label)); |
| } |
| |
| void MediaStreamManager::CancelRequest(int render_process_id, |
| int render_frame_id, |
| int page_request_id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| for (const LabeledDeviceRequest& labeled_request : requests_) { |
| DeviceRequest* const request = labeled_request.second; |
| if (request->requesting_process_id == render_process_id && |
| request->requesting_frame_id == render_frame_id && |
| request->page_request_id == page_request_id) { |
| CancelRequest(labeled_request.first); |
| return; |
| } |
| } |
| NOTREACHED(); |
| } |
| |
| void MediaStreamManager::CancelRequest(const std::string& label) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DVLOG(1) << "CancelRequest({label = " << label << "})"; |
| DeviceRequest* request = FindRequest(label); |
| if (!request) { |
| // The request does not exist. |
| LOG(ERROR) << "The request with label = " << label << " does not exist."; |
| return; |
| } |
| |
| if (request->request_type == MEDIA_ENUMERATE_DEVICES) { |
| // It isn't an ideal use of "CancelRequest" to make it a requirement |
| // for enumeration requests to be deleted via "CancelRequest" _after_ |
| // the request has been successfully fulfilled. |
| // See note in FinalizeEnumerateDevices for a recommendation on how |
| // we should refactor this. |
| DeleteRequest(label); |
| return; |
| } |
| |
| // This is a request for opening one or more devices. |
| for (const StreamDeviceInfo& device_info : request->devices) { |
| const MediaRequestState state = request->state(device_info.device.type); |
| // If we have not yet requested the device to be opened - just ignore it. |
| if (state != MEDIA_REQUEST_STATE_OPENING && |
| state != MEDIA_REQUEST_STATE_DONE) { |
| continue; |
| } |
| // Stop the opening/opened devices of the requests. |
| CloseDevice(device_info.device.type, device_info.session_id); |
| } |
| |
| // Cancel the request if still pending at UI side. |
| request->SetState(NUM_MEDIA_TYPES, MEDIA_REQUEST_STATE_CLOSING); |
| DeleteRequest(label); |
| } |
| |
| void MediaStreamManager::CancelAllRequests(int render_process_id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DeviceRequests::iterator request_it = requests_.begin(); |
| while (request_it != requests_.end()) { |
| if (request_it->second->requesting_process_id != render_process_id) { |
| ++request_it; |
| continue; |
| } |
| const std::string label = request_it->first; |
| ++request_it; |
| CancelRequest(label); |
| } |
| } |
| |
| void MediaStreamManager::StopStreamDevice(int render_process_id, |
| int render_frame_id, |
| const std::string& device_id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DVLOG(1) << "StopStreamDevice({render_frame_id = " << render_frame_id << "} " |
| << ", {device_id = " << device_id << "})"; |
| // Find the first request for this |render_process_id| and |render_frame_id| |
| // of type MEDIA_GENERATE_STREAM that has requested to use |device_id| and |
| // stop it. |
| for (const LabeledDeviceRequest& device_request : requests_) { |
| DeviceRequest* const request = device_request.second; |
| if (request->requesting_process_id != render_process_id || |
| request->requesting_frame_id != render_frame_id || |
| request->request_type != MEDIA_GENERATE_STREAM) { |
| continue; |
| } |
| |
| for (const StreamDeviceInfo& device_info : request->devices) { |
| if (device_info.device.id == device_id) { |
| StopDevice(device_info.device.type, device_info.session_id); |
| return; |
| } |
| } |
| } |
| } |
| |
| int MediaStreamManager::VideoDeviceIdToSessionId( |
| const std::string& device_id) const { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| for (const LabeledDeviceRequest& device_request : requests_) { |
| for (const StreamDeviceInfo& info : device_request.second->devices) { |
| if (info.device.id == device_id) { |
| DCHECK_EQ(MEDIA_DEVICE_VIDEO_CAPTURE, info.device.type); |
| return info.session_id; |
| } |
| } |
| } |
| return StreamDeviceInfo::kNoId; |
| } |
| |
| void MediaStreamManager::StopDevice(MediaStreamType type, int session_id) { |
| DVLOG(1) << "StopDevice" |
| << "{type = " << type << "}" |
| << "{session_id = " << session_id << "}"; |
| DeviceRequests::iterator request_it = requests_.begin(); |
| while (request_it != requests_.end()) { |
| DeviceRequest* request = request_it->second; |
| StreamDeviceInfoArray* devices = &request->devices; |
| if (devices->empty()) { |
| // There is no device in use yet by this request. |
| ++request_it; |
| continue; |
| } |
| StreamDeviceInfoArray::iterator device_it = devices->begin(); |
| while (device_it != devices->end()) { |
| if (device_it->device.type != type || |
| device_it->session_id != session_id) { |
| ++device_it; |
| continue; |
| } |
| |
| if (request->state(type) == MEDIA_REQUEST_STATE_DONE) |
| CloseDevice(type, session_id); |
| device_it = devices->erase(device_it); |
| } |
| |
| // If this request doesn't have any active devices after a device |
| // has been stopped above, remove the request. Note that the request is |
| // only deleted if a device as been removed from |devices|. |
| if (devices->empty()) { |
| std::string label = request_it->first; |
| ++request_it; |
| DeleteRequest(label); |
| } else { |
| ++request_it; |
| } |
| } |
| } |
| |
| void MediaStreamManager::CloseDevice(MediaStreamType type, int session_id) { |
| DVLOG(1) << "CloseDevice(" |
| << "{type = " << type << "} " |
| << "{session_id = " << session_id << "})"; |
| GetDeviceManager(type)->Close(session_id); |
| |
| for (const LabeledDeviceRequest& labeled_request : requests_) { |
| DeviceRequest* const request = labeled_request.second; |
| for (const StreamDeviceInfo& device_info : request->devices) { |
| if (device_info.session_id == session_id && |
| device_info.device.type == type) { |
| // Notify observers that this device is being closed. |
| // Note that only one device per type can be opened. |
| request->SetState(type, MEDIA_REQUEST_STATE_CLOSING); |
| } |
| } |
| } |
| } |
| |
| std::string MediaStreamManager::EnumerateDevices( |
| MediaStreamRequester* requester, |
| int render_process_id, |
| int render_frame_id, |
| const std::string& salt, |
| int page_request_id, |
| MediaStreamType type, |
| const url::Origin& security_origin) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(requester); |
| DCHECK(type == MEDIA_DEVICE_AUDIO_CAPTURE || |
| type == MEDIA_DEVICE_VIDEO_CAPTURE || |
| type == MEDIA_DEVICE_AUDIO_OUTPUT); |
| |
| DeviceRequest* request = |
| new DeviceRequest(requester, render_process_id, render_frame_id, |
| page_request_id, security_origin, |
| false, // user gesture |
| MEDIA_ENUMERATE_DEVICES, StreamControls(), salt); |
| if (IsAudioInputMediaType(type) || type == MEDIA_DEVICE_AUDIO_OUTPUT) |
| request->SetAudioType(type); |
| else if (IsVideoMediaType(type)) |
| request->SetVideoType(type); |
| |
| const std::string& label = AddRequest(request); |
| // Post a task and handle the request asynchronously. The reason is that the |
| // requester won't have a label for the request until this function returns |
| // and thus can not handle a response. Using base::Unretained is safe since |
| // MediaStreamManager is deleted on the UI thread, after the IO thread has |
| // been stopped. |
| BrowserThread::PostTask( |
| BrowserThread::IO, FROM_HERE, |
| base::Bind(&MediaStreamManager::DoEnumerateDevices, |
| base::Unretained(this), label)); |
| return label; |
| } |
| |
| void MediaStreamManager::DoEnumerateDevices(const std::string& label) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DeviceRequest* request = FindRequest(label); |
| if (!request) |
| return; // This can happen if the request has been canceled. |
| |
| if (request->audio_type() == MEDIA_DEVICE_AUDIO_OUTPUT) { |
| DCHECK_EQ(MEDIA_NO_SERVICE, request->video_type()); |
| request->SetState(MEDIA_DEVICE_AUDIO_OUTPUT, MEDIA_REQUEST_STATE_REQUESTED); |
| MediaDevicesManager::BoolDeviceTypes devices_to_enumerate; |
| devices_to_enumerate[MEDIA_DEVICE_TYPE_AUDIO_OUTPUT] = true; |
| media_devices_manager_->EnumerateDevices( |
| devices_to_enumerate, |
| base::Bind(&MediaStreamManager::AudioOutputDevicesEnumerated, |
| base::Unretained(this), label)); |
| return; |
| } |
| |
| StartEnumeration(request, label); |
| DVLOG(1) << "Enumerate Devices ({label = " << label << "})"; |
| } |
| |
| void MediaStreamManager::AudioOutputDevicesEnumerated( |
| const std::string& label, |
| const MediaDeviceEnumeration& enumeration) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| DeviceRequest* request = FindRequest(label); |
| if (!request) |
| return; |
| |
| DCHECK_EQ(MEDIA_DEVICE_AUDIO_OUTPUT, request->audio_type()); |
| DCHECK_EQ(MEDIA_REQUEST_STATE_REQUESTED, |
| request->state(MEDIA_DEVICE_AUDIO_OUTPUT)); |
| DCHECK_EQ(MEDIA_ENUMERATE_DEVICES, request->request_type); |
| DCHECK(!request->ui_proxy.get()); |
| StreamDeviceInfoArray device_infos = ConvertToStreamDeviceInfoArray( |
| MEDIA_DEVICE_AUDIO_OUTPUT, enumeration[MEDIA_DEVICE_TYPE_AUDIO_OUTPUT]); |
| request->devices = device_infos; |
| FinalizeEnumerateDevices(label, request); |
| } |
| |
| void MediaStreamManager::OpenDevice(MediaStreamRequester* requester, |
| int render_process_id, |
| int render_frame_id, |
| const std::string& salt, |
| int page_request_id, |
| const std::string& device_id, |
| MediaStreamType type, |
| const url::Origin& security_origin) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(type == MEDIA_DEVICE_AUDIO_CAPTURE || |
| type == MEDIA_DEVICE_VIDEO_CAPTURE); |
| DVLOG(1) << "OpenDevice ({page_request_id = " << page_request_id << "})"; |
| StreamControls controls; |
| if (IsAudioInputMediaType(type)) { |
| controls.audio.requested = true; |
| controls.audio.device_ids.push_back(device_id); |
| } else if (IsVideoMediaType(type)) { |
| controls.video.requested = true; |
| controls.video.device_ids.push_back(device_id); |
| } else { |
| NOTREACHED(); |
| } |
| DeviceRequest* request = |
| new DeviceRequest(requester, render_process_id, render_frame_id, |
| page_request_id, security_origin, |
| false, // user gesture |
| MEDIA_OPEN_DEVICE_PEPPER_ONLY, controls, salt); |
| |
| const std::string& label = AddRequest(request); |
| // Post a task and handle the request asynchronously. The reason is that the |
| // requester won't have a label for the request until this function returns |
| // and thus can not handle a response. Using base::Unretained is safe since |
| // MediaStreamManager is deleted on the UI thread, after the IO thread has |
| // been stopped. |
| BrowserThread::PostTask( |
| BrowserThread::IO, FROM_HERE, |
| base::Bind(&MediaStreamManager::SetupRequest, |
| base::Unretained(this), label)); |
| } |
| |
| bool MediaStreamManager::TranslateSourceIdToDeviceId( |
| MediaStreamType stream_type, |
| const std::string& salt, |
| const url::Origin& security_origin, |
| const std::string& source_id, |
| std::string* device_id) const { |
| DCHECK(stream_type == MEDIA_DEVICE_AUDIO_CAPTURE || |
| stream_type == MEDIA_DEVICE_VIDEO_CAPTURE); |
| // The source_id can be empty if the constraint is set but empty. |
| if (source_id.empty()) |
| return false; |
| |
| // TODO(guidou): Change to use MediaDevicesManager::EnumerateDevices. |
| // See http://crbug.com/648155. |
| MediaDeviceInfoArray cached_devices = |
| media_devices_manager_->GetCachedDeviceInfo( |
| ConvertToMediaDeviceType(stream_type)); |
| return GetDeviceIDFromHMAC(salt, security_origin, source_id, cached_devices, |
| device_id); |
| } |
| |
| void MediaStreamManager::EnsureDeviceMonitorStarted() { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| media_devices_manager_->StartMonitoring(); |
| } |
| |
| void MediaStreamManager::StopRemovedDevice(MediaDeviceType type, |
| const MediaDeviceInfo& device) { |
| DCHECK(type == MEDIA_DEVICE_TYPE_AUDIO_INPUT || |
| type == MEDIA_DEVICE_TYPE_VIDEO_INPUT); |
| MediaStreamType stream_type = ConvertToMediaStreamType(type); |
| std::vector<int> session_ids; |
| for (const LabeledDeviceRequest& labeled_request : requests_) { |
| const DeviceRequest* request = labeled_request.second; |
| for (const StreamDeviceInfo& device_info : request->devices) { |
| const std::string source_id = GetHMACForMediaDeviceID( |
| request->salt, request->security_origin, device.device_id); |
| if (device_info.device.id == source_id && |
| device_info.device.type == stream_type) { |
| session_ids.push_back(device_info.session_id); |
| if (labeled_request.second->requester) { |
| labeled_request.second->requester->DeviceStopped( |
| labeled_request.second->requesting_frame_id, |
| labeled_request.first, device_info); |
| } |
| } |
| } |
| } |
| for (const int session_id : session_ids) |
| StopDevice(stream_type, session_id); |
| |
| AddLogMessageOnIOThread( |
| base::StringPrintf( |
| "Media input device removed: type=%s, id=%s, name=%s ", |
| (stream_type == MEDIA_DEVICE_AUDIO_CAPTURE ? "audio" : "video"), |
| device.device_id.c_str(), device.label.c_str()) |
| .c_str()); |
| } |
| |
| bool MediaStreamManager::PickDeviceId(const std::string& salt, |
| const url::Origin& security_origin, |
| const TrackControls& controls, |
| const MediaDeviceInfoArray& devices, |
| std::string* device_id) const { |
| if (!controls.device_ids.empty()) { |
| if (controls.device_ids.size() > 1) { |
| LOG(ERROR) << "Only one required device ID is supported"; |
| return false; |
| } |
| const std::string& candidate_id = controls.device_ids[0]; |
| if (!GetDeviceIDFromHMAC(salt, security_origin, candidate_id, devices, |
| device_id)) { |
| LOG(WARNING) << "Invalid mandatory capture ID = " << candidate_id; |
| return false; |
| } |
| return true; |
| } |
| // We don't have a required ID. Look at the alternates. |
| for (const std::string& candidate_id : controls.alternate_device_ids) { |
| if (GetDeviceIDFromHMAC(salt, security_origin, candidate_id, devices, |
| device_id)) { |
| return true; |
| } else { |
| LOG(WARNING) << "Invalid optional capture ID = " << candidate_id; |
| } |
| } |
| return true; // If we get here, device_id is empty. |
| } |
| |
| bool MediaStreamManager::GetRequestedDeviceCaptureId( |
| const DeviceRequest* request, |
| MediaStreamType type, |
| const MediaDeviceInfoArray& devices, |
| std::string* device_id) const { |
| if (type == MEDIA_DEVICE_AUDIO_CAPTURE) { |
| return PickDeviceId(request->salt, request->security_origin, |
| request->controls.audio, devices, device_id); |
| } else if (type == MEDIA_DEVICE_VIDEO_CAPTURE) { |
| return PickDeviceId(request->salt, request->security_origin, |
| request->controls.video, devices, device_id); |
| } else { |
| NOTREACHED(); |
| } |
| return false; |
| } |
| |
| void MediaStreamManager::TranslateDeviceIdToSourceId( |
| DeviceRequest* request, |
| MediaStreamDevice* device) { |
| if (request->audio_type() == MEDIA_DEVICE_AUDIO_CAPTURE || |
| request->audio_type() == MEDIA_DEVICE_AUDIO_OUTPUT || |
| request->video_type() == MEDIA_DEVICE_VIDEO_CAPTURE) { |
| device->id = GetHMACForMediaDeviceID(request->salt, |
| request->security_origin, device->id); |
| if (!device->group_id.empty()) |
| device->group_id = GetHMACForMediaDeviceID( |
| request->salt, request->security_origin, device->group_id); |
| } |
| } |
| |
| void MediaStreamManager::StartEnumeration(DeviceRequest* request, |
| const std::string& label) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| // Start monitoring the devices when doing the first enumeration. |
| media_devices_manager_->StartMonitoring(); |
| |
| // Start enumeration for devices of all requested device types. |
| bool request_audio_input = request->audio_type() != MEDIA_NO_SERVICE; |
| if (request_audio_input) |
| request->SetState(request->audio_type(), MEDIA_REQUEST_STATE_REQUESTED); |
| |
| bool request_video_input = request->video_type() != MEDIA_NO_SERVICE; |
| if (request_video_input) |
| request->SetState(request->video_type(), MEDIA_REQUEST_STATE_REQUESTED); |
| |
| // base::Unretained is safe here because MediaStreamManager is deleted on the |
| // UI thread, after the IO thread has been stopped. |
| DCHECK(request_audio_input || request_video_input); |
| MediaDevicesManager::BoolDeviceTypes devices_to_enumerate; |
| devices_to_enumerate[MEDIA_DEVICE_TYPE_AUDIO_INPUT] = request_audio_input; |
| devices_to_enumerate[MEDIA_DEVICE_TYPE_VIDEO_INPUT] = request_video_input; |
| media_devices_manager_->EnumerateDevices( |
| devices_to_enumerate, |
| base::Bind(&MediaStreamManager::DevicesEnumerated, base::Unretained(this), |
| request_audio_input, request_video_input, label)); |
| } |
| |
| std::string MediaStreamManager::AddRequest(DeviceRequest* request) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| // Create a label for this request and verify it is unique. |
| std::string unique_label; |
| do { |
| unique_label = RandomLabel(); |
| } while (FindRequest(unique_label) != NULL); |
| |
| requests_.push_back(std::make_pair(unique_label, request)); |
| |
| return unique_label; |
| } |
| |
| MediaStreamManager::DeviceRequest* |
| MediaStreamManager::FindRequest(const std::string& label) const { |
| for (const LabeledDeviceRequest& labeled_request : requests_) { |
| if (labeled_request.first == label) |
| return labeled_request.second; |
| } |
| return NULL; |
| } |
| |
| void MediaStreamManager::DeleteRequest(const std::string& label) { |
| DVLOG(1) << "DeleteRequest({label= " << label << "})"; |
| for (DeviceRequests::iterator request_it = requests_.begin(); |
| request_it != requests_.end(); ++request_it) { |
| if (request_it->first == label) { |
| std::unique_ptr<DeviceRequest> request(request_it->second); |
| requests_.erase(request_it); |
| return; |
| } |
| } |
| NOTREACHED(); |
| } |
| |
| void MediaStreamManager::ReadOutputParamsAndPostRequestToUI( |
| const std::string& label, |
| DeviceRequest* request, |
| const MediaDeviceEnumeration& enumeration) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| // Actual audio parameters are required only for MEDIA_TAB_AUDIO_CAPTURE. |
| // TODO(guidou): MEDIA_TAB_AUDIO_CAPTURE should not be a special case. See |
| // crbug.com/584287. |
| if (request->audio_type() == MEDIA_TAB_AUDIO_CAPTURE) { |
| // Read output parameters on the correct thread for native audio OS calls. |
| // Using base::Unretained is safe since |audio_manager_| is deleted after |
| // its task runner, and MediaStreamManager is deleted on the UI thread, |
| // after the IO thread has been stopped. |
| base::PostTaskAndReplyWithResult( |
| audio_manager_->GetTaskRunner(), FROM_HERE, |
| base::Bind(&media::AudioManager::GetDefaultOutputStreamParameters, |
| base::Unretained(audio_manager_)), |
| base::Bind(&MediaStreamManager::PostRequestToUI, base::Unretained(this), |
| label, request, enumeration)); |
| } else { |
| PostRequestToUI(label, request, enumeration, media::AudioParameters()); |
| } |
| } |
| |
| void MediaStreamManager::PostRequestToUI( |
| const std::string& label, |
| DeviceRequest* request, |
| const MediaDeviceEnumeration& enumeration, |
| const media::AudioParameters& output_parameters) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(request->HasUIRequest()); |
| DVLOG(1) << "PostRequestToUI({label= " << label << "})"; |
| |
| const MediaStreamType audio_type = request->audio_type(); |
| const MediaStreamType video_type = request->video_type(); |
| |
| // Post the request to UI and set the state. |
| if (IsAudioInputMediaType(audio_type)) |
| request->SetState(audio_type, MEDIA_REQUEST_STATE_PENDING_APPROVAL); |
| if (IsVideoMediaType(video_type)) |
| request->SetState(video_type, MEDIA_REQUEST_STATE_PENDING_APPROVAL); |
| |
| // If using the fake UI, it will just auto-select from the available devices. |
| // The fake UI doesn't work for desktop sharing requests since we can't see |
| // its devices from here; always use the real UI for such requests. |
| if (use_fake_ui_ && request->video_type() != MEDIA_DESKTOP_VIDEO_CAPTURE) { |
| if (!fake_ui_) |
| fake_ui_.reset(new FakeMediaStreamUIProxy()); |
| |
| MediaStreamDevices devices; |
| for (const auto& info : enumeration[MEDIA_DEVICE_TYPE_AUDIO_INPUT]) { |
| devices.emplace_back(audio_type, info.device_id, info.label, |
| info.group_id); |
| } |
| for (const auto& info : enumeration[MEDIA_DEVICE_TYPE_VIDEO_INPUT]) { |
| devices.emplace_back(video_type, info.device_id, info.label, |
| info.group_id); |
| } |
| |
| fake_ui_->SetAvailableDevices(devices); |
| |
| request->ui_proxy = std::move(fake_ui_); |
| } else { |
| request->ui_proxy = MediaStreamUIProxy::Create(); |
| } |
| |
| request->ui_proxy->RequestAccess( |
| request->DetachUIRequest(), |
| base::Bind(&MediaStreamManager::HandleAccessRequestResponse, |
| base::Unretained(this), label, output_parameters)); |
| } |
| |
| void MediaStreamManager::SetupRequest(const std::string& label) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DeviceRequest* request = FindRequest(label); |
| if (!request) { |
| DVLOG(1) << "SetupRequest label " << label << " doesn't exist!!"; |
| return; // This can happen if the request has been canceled. |
| } |
| |
| MediaStreamType audio_type = MEDIA_NO_SERVICE; |
| MediaStreamType video_type = MEDIA_NO_SERVICE; |
| ParseStreamType(request->controls, &audio_type, &video_type); |
| request->SetAudioType(audio_type); |
| request->SetVideoType(video_type); |
| |
| const bool is_web_contents_capture = audio_type == MEDIA_TAB_AUDIO_CAPTURE || |
| video_type == MEDIA_TAB_VIDEO_CAPTURE; |
| if (is_web_contents_capture && !SetupTabCaptureRequest(request)) { |
| FinalizeRequestFailed(label, |
| request, |
| MEDIA_DEVICE_TAB_CAPTURE_FAILURE); |
| return; |
| } |
| |
| const bool is_screen_capture = video_type == MEDIA_DESKTOP_VIDEO_CAPTURE; |
| if (is_screen_capture && !SetupScreenCaptureRequest(request)) { |
| FinalizeRequestFailed(label, |
| request, |
| MEDIA_DEVICE_SCREEN_CAPTURE_FAILURE); |
| return; |
| } |
| |
| if (!is_web_contents_capture && !is_screen_capture) { |
| if (audio_type == MEDIA_DEVICE_AUDIO_CAPTURE || |
| video_type == MEDIA_DEVICE_VIDEO_CAPTURE) { |
| StartEnumeration(request, label); |
| return; |
| } |
| // If no actual device capture is requested, set up the request with an |
| // empty device list. |
| if (!SetupDeviceCaptureRequest(request, MediaDeviceEnumeration())) { |
| FinalizeRequestFailed(label, request, MEDIA_DEVICE_NO_HARDWARE); |
| return; |
| } |
| } |
| ReadOutputParamsAndPostRequestToUI(label, request, MediaDeviceEnumeration()); |
| } |
| |
| bool MediaStreamManager::SetupDeviceCaptureRequest( |
| DeviceRequest* request, |
| const MediaDeviceEnumeration& enumeration) { |
| DCHECK((request->audio_type() == MEDIA_DEVICE_AUDIO_CAPTURE || |
| request->audio_type() == MEDIA_NO_SERVICE) && |
| (request->video_type() == MEDIA_DEVICE_VIDEO_CAPTURE || |
| request->video_type() == MEDIA_NO_SERVICE)); |
| std::string audio_device_id; |
| if (request->controls.audio.requested && |
| !GetRequestedDeviceCaptureId(request, request->audio_type(), |
| enumeration[MEDIA_DEVICE_TYPE_AUDIO_INPUT], |
| &audio_device_id)) { |
| return false; |
| } |
| |
| std::string video_device_id; |
| if (request->controls.video.requested && |
| !GetRequestedDeviceCaptureId(request, request->video_type(), |
| enumeration[MEDIA_DEVICE_TYPE_VIDEO_INPUT], |
| &video_device_id)) { |
| return false; |
| } |
| request->CreateUIRequest(audio_device_id, video_device_id); |
| DVLOG(3) << "Audio requested " << request->controls.audio.requested |
| << " device id = " << audio_device_id << "Video requested " |
| << request->controls.video.requested |
| << " device id = " << video_device_id; |
| return true; |
| } |
| |
| bool MediaStreamManager::SetupTabCaptureRequest(DeviceRequest* request) { |
| DCHECK(request->audio_type() == MEDIA_TAB_AUDIO_CAPTURE || |
| request->video_type() == MEDIA_TAB_VIDEO_CAPTURE); |
| |
| std::string capture_device_id; |
| if (!request->controls.audio.device_ids.empty()) { |
| capture_device_id = request->controls.audio.device_ids[0]; |
| } else if (!request->controls.video.device_ids.empty()) { |
| capture_device_id = request->controls.video.device_ids[0]; |
| } else { |
| return false; |
| } |
| |
| // Customize controls for a WebContents based capture. |
| int target_render_process_id = 0; |
| int target_render_frame_id = 0; |
| |
| bool has_valid_device_id = WebContentsMediaCaptureId::ExtractTabCaptureTarget( |
| capture_device_id, &target_render_process_id, &target_render_frame_id); |
| if (!has_valid_device_id || |
| (request->audio_type() != MEDIA_TAB_AUDIO_CAPTURE && |
| request->audio_type() != MEDIA_NO_SERVICE) || |
| (request->video_type() != MEDIA_TAB_VIDEO_CAPTURE && |
| request->video_type() != MEDIA_NO_SERVICE)) { |
| return false; |
| } |
| request->tab_capture_device_id = capture_device_id; |
| |
| request->CreateTabCaptureUIRequest(target_render_process_id, |
| target_render_frame_id); |
| |
| DVLOG(3) << "SetupTabCaptureRequest " |
| << ", {capture_device_id = " << capture_device_id << "}" |
| << ", {target_render_process_id = " << target_render_process_id |
| << "}" |
| << ", {target_render_frame_id = " << target_render_frame_id << "}"; |
| return true; |
| } |
| |
| bool MediaStreamManager::SetupScreenCaptureRequest(DeviceRequest* request) { |
| DCHECK(request->audio_type() == MEDIA_DESKTOP_AUDIO_CAPTURE || |
| request->video_type() == MEDIA_DESKTOP_VIDEO_CAPTURE); |
| |
| // For screen capture we only support two valid combinations: |
| // (1) screen video capture only, or |
| // (2) screen video capture with loopback audio capture. |
| if (request->video_type() != MEDIA_DESKTOP_VIDEO_CAPTURE || |
| (request->audio_type() != MEDIA_NO_SERVICE && |
| request->audio_type() != MEDIA_DESKTOP_AUDIO_CAPTURE)) { |
| LOG(ERROR) << "Invalid screen capture request."; |
| return false; |
| } |
| |
| std::string video_device_id; |
| if (request->video_type() == MEDIA_DESKTOP_VIDEO_CAPTURE) { |
| const std::string& video_stream_source = |
| request->controls.video.stream_source; |
| |
| if (video_stream_source == kMediaStreamSourceDesktop && |
| !request->controls.video.device_ids.empty()) { |
| video_device_id = request->controls.video.device_ids[0]; |
| } |
| } |
| |
| const std::string audio_device_id = |
| request->audio_type() == MEDIA_DESKTOP_AUDIO_CAPTURE ? video_device_id |
| : ""; |
| |
| request->CreateUIRequest(audio_device_id, video_device_id); |
| return true; |
| } |
| |
| StreamDeviceInfoArray MediaStreamManager::GetDevicesOpenedByRequest( |
| const std::string& label) const { |
| DeviceRequest* request = FindRequest(label); |
| if (!request) |
| return StreamDeviceInfoArray(); |
| return request->devices; |
| } |
| |
| bool MediaStreamManager::FindExistingRequestedDeviceInfo( |
| const DeviceRequest& new_request, |
| const MediaStreamDevice& new_device_info, |
| StreamDeviceInfo* existing_device_info, |
| MediaRequestState* existing_request_state) const { |
| DCHECK(existing_device_info); |
| DCHECK(existing_request_state); |
| |
| std::string source_id = GetHMACForMediaDeviceID( |
| new_request.salt, new_request.security_origin, new_device_info.id); |
| |
| for (const LabeledDeviceRequest& labeled_request : requests_) { |
| const DeviceRequest* request = labeled_request.second; |
| if (request->requesting_process_id == new_request.requesting_process_id && |
| request->requesting_frame_id == new_request.requesting_frame_id && |
| request->request_type == new_request.request_type) { |
| for (const StreamDeviceInfo& device_info : request->devices) { |
| if (device_info.device.id == source_id && |
| device_info.device.type == new_device_info.type) { |
| *existing_device_info = device_info; |
| // Make sure that the audio |effects| reflect what the request |
| // is set to and not what the capabilities are. |
| FilterAudioEffects(request->controls, |
| &existing_device_info->device.input.effects); |
| EnableHotwordEffect(request->controls, |
| &existing_device_info->device.input.effects); |
| *existing_request_state = request->state(device_info.device.type); |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| void MediaStreamManager::FinalizeGenerateStream(const std::string& label, |
| DeviceRequest* request) { |
| DVLOG(1) << "FinalizeGenerateStream label " << label; |
| // Partition the array of devices into audio vs video. |
| StreamDeviceInfoArray audio_devices, video_devices; |
| for (const StreamDeviceInfo& device_info : request->devices) { |
| if (IsAudioInputMediaType(device_info.device.type)) |
| audio_devices.push_back(device_info); |
| else if (IsVideoMediaType(device_info.device.type)) |
| video_devices.push_back(device_info); |
| else |
| NOTREACHED(); |
| } |
| |
| request->requester->StreamGenerated(request->requesting_frame_id, |
| request->page_request_id, label, |
| audio_devices, video_devices); |
| } |
| |
| void MediaStreamManager::FinalizeRequestFailed( |
| const std::string& label, |
| DeviceRequest* request, |
| content::MediaStreamRequestResult result) { |
| if (request->requester) |
| request->requester->StreamGenerationFailed( |
| request->requesting_frame_id, |
| request->page_request_id, |
| result); |
| |
| if (request->request_type == MEDIA_DEVICE_ACCESS && |
| !request->callback.is_null()) { |
| request->callback.Run(MediaStreamDevices(), std::move(request->ui_proxy)); |
| } |
| |
| DeleteRequest(label); |
| } |
| |
| void MediaStreamManager::FinalizeOpenDevice(const std::string& label, |
| DeviceRequest* request) { |
| const StreamDeviceInfoArray& requested_devices = request->devices; |
| request->requester->DeviceOpened(request->requesting_frame_id, |
| request->page_request_id, |
| label, requested_devices.front()); |
| } |
| |
| void MediaStreamManager::FinalizeEnumerateDevices(const std::string& label, |
| DeviceRequest* request) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK_EQ(request->request_type, MEDIA_ENUMERATE_DEVICES); |
| DCHECK(((request->audio_type() == MEDIA_DEVICE_AUDIO_CAPTURE || |
| request->audio_type() == MEDIA_DEVICE_AUDIO_OUTPUT) && |
| request->video_type() == MEDIA_NO_SERVICE) || |
| (request->audio_type() == MEDIA_NO_SERVICE && |
| request->video_type() == MEDIA_DEVICE_VIDEO_CAPTURE)); |
| |
| for (StreamDeviceInfo& device_info : request->devices) |
| TranslateDeviceIdToSourceId(request, &device_info.device); |
| |
| if (use_fake_ui_) { |
| if (!fake_ui_) |
| fake_ui_.reset(new FakeMediaStreamUIProxy()); |
| request->ui_proxy = std::move(fake_ui_); |
| } else { |
| DCHECK(!request->ui_proxy); |
| request->ui_proxy = MediaStreamUIProxy::Create(); |
| } |
| |
| // Output label permissions are based on input permission. |
| const MediaStreamType type = |
| request->audio_type() == MEDIA_DEVICE_AUDIO_CAPTURE || |
| request->audio_type() == MEDIA_DEVICE_AUDIO_OUTPUT |
| ? MEDIA_DEVICE_AUDIO_CAPTURE |
| : MEDIA_DEVICE_VIDEO_CAPTURE; |
| |
| request->ui_proxy->CheckAccess( |
| request->security_origin, |
| type, |
| request->requesting_process_id, |
| request->requesting_frame_id, |
| base::Bind(&MediaStreamManager::HandleCheckMediaAccessResponse, |
| base::Unretained(this), |
| label)); |
| } |
| |
| void MediaStreamManager::HandleCheckMediaAccessResponse( |
| const std::string& label, |
| bool have_access) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| DeviceRequest* request = FindRequest(label); |
| if (!request) { |
| // This can happen if the request was cancelled. |
| DVLOG(1) << "The request with label " << label << " does not exist."; |
| return; |
| } |
| |
| if (!have_access) |
| ClearDeviceLabels(&request->devices); |
| |
| request->requester->DevicesEnumerated( |
| request->requesting_frame_id, |
| request->page_request_id, |
| label, |
| request->devices); |
| |
| // TODO(guidou): |
| // Ideally enumeration requests should be deleted once they have been served |
| // (as any request). However, this implementation mixes requests and |
| // notifications together so enumeration requests are kept open by some |
| // implementations (only Pepper?) and enumerations are done again when |
| // device notifications are fired. |
| // Implementations that just want to request the device list and be done |
| // (e.g. DeviceRequestMessageFilter), they must (confusingly) call |
| // CancelRequest() after the request has been fulfilled. This is not |
| // obvious, not consistent in this class (see e.g. FinalizeMediaAccessRequest) |
| // and can lead to subtle bugs (requests not deleted at all deleted too |
| // early). |
| // |
| // Basically, it is not clear that using requests as an additional layer on |
| // top of device notifications is necessary or good. |
| // |
| // To add to this, MediaStreamManager currently relies on the external |
| // implementations of MediaStreamRequester to delete enumeration requests via |
| // CancelRequest and e.g. DeviceRequestMessageFilter does this. However the |
| // Pepper implementation does not seem to to this at all (and from what I can |
| // see, it is the only implementation that uses an enumeration request as a |
| // notification mechanism). |
| // |
| // We should decouple notifications from enumeration requests and once that |
| // has been done, remove the requirement to call CancelRequest() to delete |
| // enumeration requests and uncomment the following line: |
| // |
| // DeleteRequest(label); |
| } |
| |
| void MediaStreamManager::FinalizeMediaAccessRequest( |
| const std::string& label, |
| DeviceRequest* request, |
| const MediaStreamDevices& devices) { |
| if (!request->callback.is_null()) |
| request->callback.Run(devices, std::move(request->ui_proxy)); |
| |
| // Delete the request since it is done. |
| DeleteRequest(label); |
| } |
| |
| void MediaStreamManager::InitializeDeviceManagersOnIOThread() { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| // Store a pointer to |this| on the IO thread to avoid having to jump to the |
| // UI thread to fetch a pointer to the MSM. In particular on Android, it can |
| // be problematic to post to a UI thread from arbitrary worker threads since |
| // attaching to the VM is required and we may have to access the MSM from |
| // callback threads that we don't own and don't want to attach. |
| g_media_stream_manager_tls_ptr.Pointer()->Set(this); |
| |
| // TODO(dalecurtis): Remove ScopedTracker below once crbug.com/457525 is |
| // fixed. |
| tracked_objects::ScopedTracker tracking_profile1( |
| FROM_HERE_WITH_EXPLICIT_FUNCTION( |
| "457525 MediaStreamManager::InitializeDeviceManagersOnIOThread 1")); |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(!device_task_runner_.get()); |
| device_task_runner_ = audio_manager_->GetTaskRunner(); |
| |
| // TODO(dalecurtis): Remove ScopedTracker below once crbug.com/457525 is |
| // fixed. |
| tracked_objects::ScopedTracker tracking_profile2( |
| FROM_HERE_WITH_EXPLICIT_FUNCTION( |
| "457525 MediaStreamManager::InitializeDeviceManagersOnIOThread 2")); |
| audio_input_device_manager_ = new AudioInputDeviceManager(audio_manager_); |
| audio_input_device_manager_->Register(this, device_task_runner_); |
| |
| // TODO(dalecurtis): Remove ScopedTracker below once crbug.com/457525 is |
| // fixed. |
| tracked_objects::ScopedTracker tracking_profile3( |
| FROM_HERE_WITH_EXPLICIT_FUNCTION( |
| "457525 MediaStreamManager::InitializeDeviceManagersOnIOThread 3")); |
| // We want to be notified of IO message loop destruction to delete the thread |
| // and the device managers. |
| base::MessageLoop::current()->AddDestructionObserver(this); |
| |
| // TODO(dalecurtis): Remove ScopedTracker below once crbug.com/457525 is |
| // fixed. |
| tracked_objects::ScopedTracker tracking_profile4( |
| FROM_HERE_WITH_EXPLICIT_FUNCTION( |
| "457525 MediaStreamManager::InitializeDeviceManagersOnIOThread 4")); |
| video_capture_manager_ = |
| new VideoCaptureManager(media::VideoCaptureDeviceFactory::CreateFactory( |
| BrowserThread::GetTaskRunnerForThread(BrowserThread::UI))); |
| #if defined(OS_WIN) |
| // Use an STA Video Capture Thread to try to avoid crashes on enumeration of |
| // buggy third party Direct Show modules, http://crbug.com/428958. |
| video_capture_thread_.init_com_with_mta(false); |
| CHECK(video_capture_thread_.Start()); |
| video_capture_manager_->Register(this, video_capture_thread_.task_runner()); |
| #else |
| video_capture_manager_->Register(this, device_task_runner_); |
| #endif |
| |
| media_devices_manager_.reset( |
| new MediaDevicesManager(audio_manager_, video_capture_manager_, this)); |
| } |
| |
| void MediaStreamManager::Opened(MediaStreamType stream_type, |
| int capture_session_id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DVLOG(1) << "Opened({stream_type = " << stream_type << "} " |
| << "{capture_session_id = " << capture_session_id << "})"; |
| // Find the request(s) containing this device and mark it as used. |
| // It can be used in several requests since the same device can be |
| // requested from the same web page. |
| for (const LabeledDeviceRequest& labeled_request : requests_) { |
| const std::string& label = labeled_request.first; |
| DeviceRequest* request = labeled_request.second; |
| for (StreamDeviceInfo& device_info : request->devices) { |
| if (device_info.device.type == stream_type && |
| device_info.session_id == capture_session_id) { |
| CHECK(request->state(device_info.device.type) == |
| MEDIA_REQUEST_STATE_OPENING); |
| // We've found a matching request. |
| request->SetState(device_info.device.type, MEDIA_REQUEST_STATE_DONE); |
| |
| if (IsAudioInputMediaType(device_info.device.type)) { |
| // Store the native audio parameters in the device struct. |
| // TODO(xians): Handle the tab capture sample rate/channel layout |
| // in AudioInputDeviceManager::Open(). |
| if (device_info.device.type != content::MEDIA_TAB_AUDIO_CAPTURE) { |
| const StreamDeviceInfo* info = |
| audio_input_device_manager_->GetOpenedDeviceInfoById( |
| device_info.session_id); |
| device_info.device.input = info->device.input; |
| |
| // Since the audio input device manager will set the input |
| // parameters to the default settings (including supported effects), |
| // we need to adjust those settings here according to what the |
| // request asks for. |
| FilterAudioEffects(request->controls, |
| &device_info.device.input.effects); |
| EnableHotwordEffect(request->controls, |
| &device_info.device.input.effects); |
| |
| device_info.device.matched_output = info->device.matched_output; |
| } |
| } |
| if (RequestDone(*request)) |
| HandleRequestDone(label, request); |
| break; |
| } |
| } |
| } |
| } |
| |
| void MediaStreamManager::HandleRequestDone(const std::string& label, |
| DeviceRequest* request) { |
| DCHECK(RequestDone(*request)); |
| DVLOG(1) << "HandleRequestDone(" |
| << ", {label = " << label << "})"; |
| |
| switch (request->request_type) { |
| case MEDIA_OPEN_DEVICE_PEPPER_ONLY: |
| FinalizeOpenDevice(label, request); |
| break; |
| case MEDIA_GENERATE_STREAM: { |
| FinalizeGenerateStream(label, request); |
| break; |
| } |
| default: |
| NOTREACHED(); |
| break; |
| } |
| |
| if (request->ui_proxy.get()) { |
| request->ui_proxy->OnStarted( |
| base::Bind(&MediaStreamManager::StopMediaStreamFromBrowser, |
| base::Unretained(this), |
| label), |
| base::Bind(&MediaStreamManager::OnMediaStreamUIWindowId, |
| base::Unretained(this), |
| request->video_type(), |
| request->devices)); |
| } |
| } |
| |
| void MediaStreamManager::Closed(MediaStreamType stream_type, |
| int capture_session_id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| } |
| |
| void MediaStreamManager::DevicesEnumerated( |
| bool requested_audio_input, |
| bool requested_video_input, |
| const std::string& label, |
| const MediaDeviceEnumeration& enumeration) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| DeviceRequest* request = FindRequest(label); |
| if (!request) |
| return; |
| |
| bool requested[] = {requested_audio_input, requested_video_input}; |
| MediaStreamType stream_types[] = {MEDIA_DEVICE_AUDIO_CAPTURE, |
| MEDIA_DEVICE_VIDEO_CAPTURE}; |
| MediaDeviceType device_types[] = {MEDIA_DEVICE_TYPE_AUDIO_INPUT, |
| MEDIA_DEVICE_TYPE_VIDEO_INPUT}; |
| |
| for (size_t i = 0; i < arraysize(requested); ++i) { |
| if (!requested[i]) |
| continue; |
| |
| DCHECK(request->audio_type() == stream_types[i] || |
| request->video_type() == stream_types[i]); |
| if (request->state(stream_types[i]) == MEDIA_REQUEST_STATE_REQUESTED) { |
| if (request->request_type == MEDIA_ENUMERATE_DEVICES) { |
| // MEDIA_ENUMERATE_DEVICES requests are always for a single type, so it |
| // is OK to ignore any remaining iteration in this loop. |
| ProcessEnumerationRequest(label, request, stream_types[i], |
| enumeration[device_types[i]]); |
| return; |
| } |
| // Not a MEDIA_ENUMERATE_DEVICES request. |
| request->SetState(stream_types[i], MEDIA_REQUEST_STATE_PENDING_APPROVAL); |
| } |
| } |
| |
| if (!SetupDeviceCaptureRequest(request, enumeration)) |
| FinalizeRequestFailed(label, request, MEDIA_DEVICE_NO_HARDWARE); |
| else |
| ReadOutputParamsAndPostRequestToUI(label, request, enumeration); |
| } |
| |
| void MediaStreamManager::Aborted(MediaStreamType stream_type, |
| int capture_session_id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DVLOG(1) << "Aborted({stream_type = " << stream_type << "} " |
| << "{capture_session_id = " << capture_session_id << "})"; |
| StopDevice(stream_type, capture_session_id); |
| } |
| |
| void MediaStreamManager::OnSuspend() { |
| SendMessageToNativeLog("Power state suspended."); |
| } |
| |
| void MediaStreamManager::OnResume() { |
| SendMessageToNativeLog("Power state resumed."); |
| } |
| |
| void MediaStreamManager::UseFakeUIForTests( |
| std::unique_ptr<FakeMediaStreamUIProxy> fake_ui) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| use_fake_ui_ = true; |
| fake_ui_ = std::move(fake_ui); |
| } |
| |
| void MediaStreamManager::RegisterNativeLogCallback( |
| int renderer_host_id, |
| const base::Callback<void(const std::string&)>& callback) { |
| BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, |
| base::Bind(&MediaStreamManager::DoNativeLogCallbackRegistration, |
| base::Unretained(this), renderer_host_id, callback)); |
| } |
| |
| void MediaStreamManager::UnregisterNativeLogCallback(int renderer_host_id) { |
| BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, |
| base::Bind(&MediaStreamManager::DoNativeLogCallbackUnregistration, |
| base::Unretained(this), renderer_host_id)); |
| } |
| |
| void MediaStreamManager::AddLogMessageOnIOThread(const std::string& message) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| for (const auto& callback : log_callbacks_) |
| callback.second.Run(message); |
| } |
| |
| void MediaStreamManager::HandleAccessRequestResponse( |
| const std::string& label, |
| const media::AudioParameters& output_parameters, |
| const MediaStreamDevices& devices, |
| content::MediaStreamRequestResult result) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DVLOG(1) << "HandleAccessRequestResponse(" |
| << ", {label = " << label << "})"; |
| |
| DeviceRequest* request = FindRequest(label); |
| if (!request) { |
| // The request has been canceled before the UI returned. |
| return; |
| } |
| |
| if (request->request_type == MEDIA_DEVICE_ACCESS) { |
| FinalizeMediaAccessRequest(label, request, devices); |
| return; |
| } |
| |
| // Handle the case when the request was denied. |
| if (result != MEDIA_DEVICE_OK) { |
| FinalizeRequestFailed(label, request, result); |
| return; |
| } |
| DCHECK(!devices.empty()); |
| |
| // Process all newly-accepted devices for this request. |
| bool found_audio = false; |
| bool found_video = false; |
| for (const MediaStreamDevice& device : devices) { |
| StreamDeviceInfo device_info; |
| device_info.device = device; |
| |
| if (device_info.device.type == content::MEDIA_TAB_VIDEO_CAPTURE || |
| device_info.device.type == content::MEDIA_TAB_AUDIO_CAPTURE) { |
| device_info.device.id = request->tab_capture_device_id; |
| } |
| |
| // Initialize the sample_rate and channel_layout here since for audio |
| // mirroring, we don't go through EnumerateDevices where these are usually |
| // initialized. |
| if (device_info.device.type == content::MEDIA_TAB_AUDIO_CAPTURE || |
| device_info.device.type == content::MEDIA_DESKTOP_AUDIO_CAPTURE) { |
| int sample_rate = output_parameters.sample_rate(); |
| // If we weren't able to get the native sampling rate or the sample_rate |
| // is outside the valid range for input devices set reasonable defaults. |
| if (sample_rate <= 0 || sample_rate > 96000) |
| sample_rate = 44100; |
| |
| device_info.device.input.sample_rate = sample_rate; |
| device_info.device.input.channel_layout = media::CHANNEL_LAYOUT_STEREO; |
| } |
| |
| if (device_info.device.type == request->audio_type()) |
| found_audio = true; |
| else if (device_info.device.type == request->video_type()) |
| found_video = true; |
| |
| // If this is request for a new MediaStream, a device is only opened once |
| // per render frame. This is so that the permission to use a device can be |
| // revoked by a single call to StopStreamDevice regardless of how many |
| // MediaStreams it is being used in. |
| if (request->request_type == MEDIA_GENERATE_STREAM) { |
| MediaRequestState state; |
| if (FindExistingRequestedDeviceInfo(*request, |
| device_info.device, |
| &device_info, |
| &state)) { |
| request->devices.push_back(device_info); |
| request->SetState(device_info.device.type, state); |
| DVLOG(1) << "HandleAccessRequestResponse - device already opened " |
| << ", {label = " << label << "}" |
| << ", device_id = " << device.id << "}"; |
| continue; |
| } |
| } |
| device_info.session_id = |
| GetDeviceManager(device_info.device.type)->Open(device_info); |
| TranslateDeviceIdToSourceId(request, &device_info.device); |
| request->devices.push_back(device_info); |
| |
| request->SetState(device_info.device.type, MEDIA_REQUEST_STATE_OPENING); |
| DVLOG(1) << "HandleAccessRequestResponse - opening device " |
| << ", {label = " << label << "}" |
| << ", {device_id = " << device_info.device.id << "}" |
| << ", {session_id = " << device_info.session_id << "}"; |
| } |
| |
| // Check whether we've received all stream types requested. |
| if (!found_audio && IsAudioInputMediaType(request->audio_type())) { |
| request->SetState(request->audio_type(), MEDIA_REQUEST_STATE_ERROR); |
| DVLOG(1) << "Set no audio found label " << label; |
| } |
| |
| if (!found_video && IsVideoMediaType(request->video_type())) |
| request->SetState(request->video_type(), MEDIA_REQUEST_STATE_ERROR); |
| |
| if (RequestDone(*request)) |
| HandleRequestDone(label, request); |
| } |
| |
| void MediaStreamManager::StopMediaStreamFromBrowser(const std::string& label) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| DeviceRequest* request = FindRequest(label); |
| if (!request) |
| return; |
| |
| // Notify renderers that the devices in the stream will be stopped. |
| if (request->requester) { |
| for (const StreamDeviceInfo& device : request->devices) { |
| request->requester->DeviceStopped(request->requesting_frame_id, label, |
| device); |
| } |
| } |
| |
| CancelRequest(label); |
| } |
| |
| void MediaStreamManager::WillDestroyCurrentMessageLoop() { |
| DVLOG(3) << "MediaStreamManager::WillDestroyCurrentMessageLoop()"; |
| DCHECK(CalledOnIOThread()); |
| DCHECK(requests_.empty()); |
| if (device_task_runner_.get()) { |
| media_devices_manager_->StopMonitoring(); |
| |
| video_capture_manager_->Unregister(); |
| audio_input_device_manager_->Unregister(); |
| device_task_runner_ = NULL; |
| } |
| |
| audio_input_device_manager_ = NULL; |
| video_capture_manager_ = NULL; |
| media_devices_manager_ = NULL; |
| g_media_stream_manager_tls_ptr.Pointer()->Set(NULL); |
| } |
| |
| void MediaStreamManager::NotifyDevicesChanged( |
| MediaDeviceType device_type, |
| const MediaDeviceInfoArray& devices) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| MediaObserver* media_observer = |
| GetContentClient()->browser()->GetMediaObserver(); |
| |
| MediaStreamType stream_type = ConvertToMediaStreamType(device_type); |
| MediaStreamDevices new_devices = |
| ConvertToMediaStreamDevices(stream_type, devices); |
| |
| if (IsAudioInputMediaType(stream_type)) { |
| MediaCaptureDevicesImpl::GetInstance()->OnAudioCaptureDevicesChanged( |
| new_devices); |
| if (media_observer) |
| media_observer->OnAudioCaptureDevicesChanged(); |
| } else if (IsVideoMediaType(stream_type)) { |
| MediaCaptureDevicesImpl::GetInstance()->OnVideoCaptureDevicesChanged( |
| new_devices); |
| if (media_observer) |
| media_observer->OnVideoCaptureDevicesChanged(); |
| } else { |
| NOTREACHED(); |
| } |
| |
| ProcessOpenEnumerationRequests(stream_type, devices); |
| } |
| |
| bool MediaStreamManager::RequestDone(const DeviceRequest& request) const { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| const bool requested_audio = IsAudioInputMediaType(request.audio_type()); |
| const bool requested_video = IsVideoMediaType(request.video_type()); |
| |
| const bool audio_done = |
| !requested_audio || |
| request.state(request.audio_type()) == MEDIA_REQUEST_STATE_DONE || |
| request.state(request.audio_type()) == MEDIA_REQUEST_STATE_ERROR; |
| if (!audio_done) |
| return false; |
| |
| const bool video_done = |
| !requested_video || |
| request.state(request.video_type()) == MEDIA_REQUEST_STATE_DONE || |
| request.state(request.video_type()) == MEDIA_REQUEST_STATE_ERROR; |
| if (!video_done) |
| return false; |
| |
| return true; |
| } |
| |
| MediaStreamProvider* MediaStreamManager::GetDeviceManager( |
| MediaStreamType stream_type) { |
| if (IsVideoMediaType(stream_type)) |
| return video_capture_manager(); |
| else if (IsAudioInputMediaType(stream_type)) |
| return audio_input_device_manager(); |
| NOTREACHED(); |
| return NULL; |
| } |
| |
| void MediaStreamManager::OnMediaStreamUIWindowId(MediaStreamType video_type, |
| StreamDeviceInfoArray devices, |
| gfx::NativeViewId window_id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| if (!window_id) |
| return; |
| |
| if (video_type != MEDIA_DESKTOP_VIDEO_CAPTURE) |
| return; |
| |
| // Pass along for desktop screen and window capturing when |
| // DesktopCaptureDevice is used. |
| for (const StreamDeviceInfo& device_info : devices) { |
| if (device_info.device.type != MEDIA_DESKTOP_VIDEO_CAPTURE) |
| continue; |
| |
| DesktopMediaID media_id = DesktopMediaID::Parse(device_info.device.id); |
| // WebContentsVideoCaptureDevice is used for tab/webcontents. |
| if (media_id.type == DesktopMediaID::TYPE_WEB_CONTENTS) |
| continue; |
| #if defined(USE_AURA) |
| // DesktopCaptureDevicAura is used when aura_id is valid. |
| if (media_id.aura_id > DesktopMediaID::kNullId) |
| continue; |
| #endif |
| video_capture_manager_->SetDesktopCaptureWindowId(device_info.session_id, |
| window_id); |
| break; |
| } |
| } |
| |
| void MediaStreamManager::DoNativeLogCallbackRegistration( |
| int renderer_host_id, |
| const base::Callback<void(const std::string&)>& callback) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| // Re-registering (overwriting) is allowed and happens in some tests. |
| log_callbacks_[renderer_host_id] = callback; |
| } |
| |
| void MediaStreamManager::DoNativeLogCallbackUnregistration( |
| int renderer_host_id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| log_callbacks_.erase(renderer_host_id); |
| } |
| |
| void MediaStreamManager::SubscribeToDeviceChangeNotifications( |
| MediaStreamRequester* subscriber) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(subscriber); |
| DCHECK(std::find_if(device_change_subscribers_.begin(), |
| device_change_subscribers_.end(), |
| [subscriber](MediaStreamRequester* item) { |
| return subscriber == item; |
| }) == device_change_subscribers_.end()); |
| device_change_subscribers_.push_back(subscriber); |
| } |
| |
| void MediaStreamManager::CancelDeviceChangeNotifications( |
| MediaStreamRequester* subscriber) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| auto it = std::find(device_change_subscribers_.begin(), |
| device_change_subscribers_.end(), subscriber); |
| CHECK(it != device_change_subscribers_.end()); |
| device_change_subscribers_.erase(it); |
| } |
| |
| void MediaStreamManager::NotifyDeviceChangeSubscribers(MediaStreamType type) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| for (auto* subscriber : device_change_subscribers_) |
| subscriber->DevicesChanged(type); |
| } |
| |
| // static |
| std::string MediaStreamManager::GetHMACForMediaDeviceID( |
| const std::string& salt, |
| const url::Origin& security_origin, |
| const std::string& raw_unique_id) { |
| DCHECK(!raw_unique_id.empty()); |
| if (raw_unique_id == media::AudioDeviceDescription::kDefaultDeviceId || |
| raw_unique_id == media::AudioDeviceDescription::kCommunicationsDeviceId) { |
| return raw_unique_id; |
| } |
| |
| crypto::HMAC hmac(crypto::HMAC::SHA256); |
| const size_t digest_length = hmac.DigestLength(); |
| std::vector<uint8_t> digest(digest_length); |
| bool result = hmac.Init(security_origin.Serialize()) && |
| hmac.Sign(raw_unique_id + salt, &digest[0], digest.size()); |
| DCHECK(result); |
| return base::ToLowerASCII(base::HexEncode(&digest[0], digest.size())); |
| } |
| |
| // static |
| bool MediaStreamManager::DoesMediaDeviceIDMatchHMAC( |
| const std::string& salt, |
| const url::Origin& security_origin, |
| const std::string& device_guid, |
| const std::string& raw_unique_id) { |
| DCHECK(!raw_unique_id.empty()); |
| std::string guid_from_raw_device_id = |
| GetHMACForMediaDeviceID(salt, security_origin, raw_unique_id); |
| return guid_from_raw_device_id == device_guid; |
| } |
| |
| // static |
| bool MediaStreamManager::IsOriginAllowed(int render_process_id, |
| const url::Origin& origin) { |
| if (!ChildProcessSecurityPolicyImpl::GetInstance()->CanRequestURL( |
| render_process_id, ConvertToGURL(origin))) { |
| LOG(ERROR) << "MSM: Renderer requested a URL it's not allowed to use."; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void MediaStreamManager::SetCapturingLinkSecured(int render_process_id, |
| int session_id, |
| content::MediaStreamType type, |
| bool is_secure) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| for (LabeledDeviceRequest& labeled_request : requests_) { |
| DeviceRequest* request = labeled_request.second; |
| if (request->requesting_process_id != render_process_id) |
| continue; |
| |
| for (const StreamDeviceInfo& device_info : request->devices) { |
| if (device_info.session_id == session_id && |
| device_info.device.type == type) { |
| request->SetCapturingLinkSecured(is_secure); |
| return; |
| } |
| } |
| } |
| } |
| |
| void MediaStreamManager::ProcessEnumerationRequest( |
| const std::string& label, |
| DeviceRequest* request, |
| MediaStreamType stream_type, |
| const MediaDeviceInfoArray& device_infos) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK_EQ(MEDIA_REQUEST_STATE_REQUESTED, request->state(stream_type)); |
| DCHECK(request->audio_type() == stream_type || |
| request->video_type() == stream_type); |
| DCHECK(request->audio_type() == MEDIA_NO_SERVICE || |
| request->video_type() == MEDIA_NO_SERVICE); |
| DCHECK_EQ(MEDIA_ENUMERATE_DEVICES, request->request_type); |
| |
| if (request->requester && !request->ui_proxy) { |
| request->devices = |
| ConvertToStreamDeviceInfoArray(stream_type, device_infos); |
| FinalizeEnumerateDevices(label, request); |
| } |
| } |
| |
| // This function is intended to support subscription-style device enumerations. |
| // It is only supported for media capture devices and will be removed once |
| // handling of enumeration requests and device-change notifications is migrated |
| // out of MediaStreamManager. |
| void MediaStreamManager::ProcessOpenEnumerationRequests( |
| MediaStreamType stream_type, |
| const MediaDeviceInfoArray& device_infos) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| DCHECK(stream_type == MEDIA_DEVICE_AUDIO_CAPTURE || |
| stream_type == MEDIA_DEVICE_VIDEO_CAPTURE); |
| |
| for (const LabeledDeviceRequest& labeled_request : requests_) { |
| DeviceRequest* request = labeled_request.second; |
| if (request->request_type == MEDIA_ENUMERATE_DEVICES && |
| request->state(stream_type) == MEDIA_REQUEST_STATE_REQUESTED && |
| (request->audio_type() == stream_type || |
| request->video_type() == stream_type)) { |
| ProcessEnumerationRequest(labeled_request.first, request, stream_type, |
| device_infos); |
| } |
| } |
| } |
| |
| } // namespace content |