83 lines
3 KiB
C
83 lines
3 KiB
C
|
// 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-CHROMIUM file.
|
||
|
|
|
||
|
|
#ifndef BRIGHTRAY_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
|
||
|
|
#define BRIGHTRAY_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
|
||
|
|
|
||
|
|
#include "base/callback.h"
|
||
|
|
#include "base/memory/scoped_ptr.h"
|
||
|
|
#include "base/memory/singleton.h"
|
||
|
|
#include "base/observer_list.h"
|
||
|
|
#include "content/public/browser/media_observer.h"
|
||
|
|
#include "content/public/common/media_stream_request.h"
|
||
|
|
|
||
|
|
namespace brightray {
|
||
|
|
|
||
|
|
// This singleton is used to receive updates about media events from the content
|
||
|
|
// layer.
|
||
|
|
class MediaCaptureDevicesDispatcher : public content::MediaObserver {
|
||
|
|
public:
|
||
|
|
static MediaCaptureDevicesDispatcher* GetInstance();
|
||
|
|
|
||
|
|
// Helper for picking the device that was requested for an OpenDevice request.
|
||
|
|
// If the device requested is not available it will revert to using the first
|
||
|
|
// available one instead or will return an empty list if no devices of the
|
||
|
|
// requested kind are present.
|
||
|
|
void GetRequestedDevice(const std::string& requested_device_id,
|
||
|
|
bool audio,
|
||
|
|
bool video,
|
||
|
|
content::MediaStreamDevices* devices);
|
||
|
|
void GetDefaultDevices(bool audio,
|
||
|
|
bool video,
|
||
|
|
content::MediaStreamDevices* devices);
|
||
|
|
|
||
|
|
const content::MediaStreamDevices& GetAudioCaptureDevices();
|
||
|
|
const content::MediaStreamDevices& GetVideoCaptureDevices();
|
||
|
|
|
||
|
|
// Overridden from content::MediaObserver:
|
||
|
|
virtual void OnAudioCaptureDevicesChanged(
|
||
|
|
const content::MediaStreamDevices& devices) OVERRIDE;
|
||
|
|
virtual void OnVideoCaptureDevicesChanged(
|
||
|
|
const content::MediaStreamDevices& devices) OVERRIDE;
|
||
|
|
virtual void OnMediaRequestStateChanged(
|
||
|
|
int render_process_id,
|
||
|
|
int render_view_id,
|
||
|
|
const content::MediaStreamDevice& device,
|
||
|
|
content::MediaRequestState state) OVERRIDE;
|
||
|
|
virtual void OnAudioStreamPlayingChanged(
|
||
|
|
int render_process_id,
|
||
|
|
int render_view_id,
|
||
|
|
int stream_id,
|
||
|
|
bool playing) OVERRIDE {}
|
||
|
|
|
||
|
|
private:
|
||
|
|
friend struct DefaultSingletonTraits<MediaCaptureDevicesDispatcher>;
|
||
|
|
|
||
|
|
MediaCaptureDevicesDispatcher();
|
||
|
|
virtual ~MediaCaptureDevicesDispatcher();
|
||
|
|
|
||
|
|
// Called by the MediaObserver() functions, executed on UI thread.
|
||
|
|
void UpdateAudioDevicesOnUIThread(const content::MediaStreamDevices& devices);
|
||
|
|
void UpdateVideoDevicesOnUIThread(const content::MediaStreamDevices& devices);
|
||
|
|
void UpdateMediaRequestStateOnUIThread(
|
||
|
|
int render_process_id,
|
||
|
|
int render_view_id,
|
||
|
|
const content::MediaStreamDevice& device,
|
||
|
|
content::MediaRequestState state);
|
||
|
|
|
||
|
|
// A list of cached audio capture devices.
|
||
|
|
content::MediaStreamDevices audio_devices_;
|
||
|
|
|
||
|
|
// A list of cached video capture devices.
|
||
|
|
content::MediaStreamDevices video_devices_;
|
||
|
|
|
||
|
|
// Flag to indicate if device enumeration has been done/doing.
|
||
|
|
// Only accessed on UI thread.
|
||
|
|
bool devices_enumerated_;
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // BRIGHTRAY_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
|