2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
11 #ifndef WEBRTC_VIDEO_ENGINE_VIE_CHANNEL_MANAGER_H_
12 #define WEBRTC_VIDEO_ENGINE_VIE_CHANNEL_MANAGER_H_
17 #include "webrtc/engine_configurations.h"
18 #include "webrtc/system_wrappers/interface/scoped_ptr.h"
19 #include "webrtc/typedefs.h"
20 #include "webrtc/video_engine/include/vie_rtp_rtcp.h"
21 #include "webrtc/video_engine/vie_channel_group.h"
22 #include "webrtc/video_engine/vie_defines.h"
23 #include "webrtc/video_engine/vie_manager_base.h"
24 #include "webrtc/video_engine/vie_remb.h"
29 class CriticalSectionWrapper;
37 typedef std::list<ChannelGroup*> ChannelGroups;
38 typedef std::list<ViEChannel*> ChannelList;
39 typedef std::map<int, ViEChannel*> ChannelMap;
40 typedef std::map<int, ViEEncoder*> EncoderMap;
42 class ViEChannelManager: private ViEManagerBase {
43 friend class ViEChannelManagerScoped;
45 ViEChannelManager(int engine_id,
47 const Config& config);
50 void SetModuleProcessThread(ProcessThread* module_process_thread);
52 // Creates a new channel. 'channel_id' will be the id of the created channel.
53 int CreateChannel(int* channel_id,
54 const Config* config);
56 // Creates a new channel grouped with |original_channel|. The new channel
57 // will get its own |ViEEncoder| if |sender| is set to true. It will be a
58 // receive only channel, without an own |ViEEncoder| if |sender| is false.
59 int CreateChannel(int* channel_id, int original_channel, bool sender);
62 int DeleteChannel(int channel_id);
64 // Set the voice engine instance to be used by all video channels.
65 int SetVoiceEngine(VoiceEngine* voice_engine);
67 // Enables lip sync of the channel.
68 int ConnectVoiceChannel(int channel_id, int audio_channel_id);
70 // Disables lip sync of the channel.
71 int DisconnectVoiceChannel(int channel_id);
73 VoiceEngine* GetVoiceEngine();
75 // Adds a channel to include when sending REMB.
76 bool SetRembStatus(int channel_id, bool sender, bool receiver);
78 // Updates the SSRCs for a channel. If one of the SSRCs already is registered,
79 // it will simply be ignored and no error is returned.
80 void UpdateSsrcs(int channel_id, const std::list<unsigned int>& ssrcs);
83 // Creates a channel object connected to |vie_encoder|. Assumed to be called
85 bool CreateChannelObject(int channel_id,
86 ViEEncoder* vie_encoder,
87 RtcpBandwidthObserver* bandwidth_observer,
88 RemoteBitrateEstimator* remote_bitrate_estimator,
89 RtcpRttStats* rtcp_rtt_stats,
90 RtcpIntraFrameObserver* intra_frame_observer,
93 // Used by ViEChannelScoped, forcing a manager user to use scoped.
94 // Returns a pointer to the channel with id 'channel_id'.
95 ViEChannel* ViEChannelPtr(int channel_id) const;
97 // Methods used by ViECaptureScoped and ViEEncoderScoped.
98 // Gets the ViEEncoder used as input for video_channel_id
99 ViEEncoder* ViEEncoderPtr(int video_channel_id) const;
101 // Returns a free channel id, -1 if failing.
104 // Returns a previously allocated channel id.
105 void ReturnChannelId(int channel_id);
107 // Returns the iterator to the ChannelGroup containing |channel_id|.
108 ChannelGroup* FindGroup(int channel_id);
110 // Returns true if at least one other channels uses the same ViEEncoder as
112 bool ChannelUsingViEEncoder(int channel_id) const;
113 void ChannelsUsingViEEncoder(int channel_id, ChannelList* channels) const;
115 // Protects channel_map_ and free_channel_ids_.
116 CriticalSectionWrapper* channel_id_critsect_;
118 int number_of_cores_;
120 // TODO(mflodman) Make part of channel group.
121 ChannelMap channel_map_;
122 bool* free_channel_ids_;
123 int free_channel_ids_size_;
125 // List with all channel groups.
126 std::list<ChannelGroup*> channel_groups_;
128 // TODO(mflodman) Make part of channel group.
129 // Maps Channel id -> ViEEncoder.
130 EncoderMap vie_encoder_map_;
131 VoEVideoSync* voice_sync_interface_;
133 VoiceEngine* voice_engine_;
134 ProcessThread* module_process_thread_;
135 const Config& engine_config_;
138 class ViEChannelManagerScoped: private ViEManagerScopedBase {
140 explicit ViEChannelManagerScoped(
141 const ViEChannelManager& vie_channel_manager);
142 ViEChannel* Channel(int vie_channel_id) const;
143 ViEEncoder* Encoder(int vie_channel_id) const;
145 // Returns true if at least one other channels uses the same ViEEncoder as
147 bool ChannelUsingViEEncoder(int channel_id) const;
149 // Returns a list with pointers to all channels using the same encoder as the
150 // channel with |channel_id|, including the one with the specified id.
151 void ChannelsUsingViEEncoder(int channel_id, ChannelList* channels) const;
154 } // namespace webrtc
156 #endif // WEBRTC_VIDEO_ENGINE_VIE_CHANNEL_MANAGER_H_