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 bool SetReservedTransmitBitrate(int channel_id,
79 uint32_t reserved_transmit_bitrate_bps);
81 // Updates the SSRCs for a channel. If one of the SSRCs already is registered,
82 // it will simply be ignored and no error is returned.
83 void UpdateSsrcs(int channel_id, const std::list<unsigned int>& ssrcs);
85 // Sets bandwidth estimation related configurations.
86 bool SetBandwidthEstimationConfig(int channel_id,
87 const webrtc::Config& config);
89 bool GetEstimatedSendBandwidth(int channel_id,
90 uint32_t* estimated_bandwidth) const;
91 bool GetEstimatedReceiveBandwidth(int channel_id,
92 uint32_t* estimated_bandwidth) const;
95 // Creates a channel object connected to |vie_encoder|. Assumed to be called
97 bool CreateChannelObject(int channel_id,
98 ViEEncoder* vie_encoder,
99 RtcpBandwidthObserver* bandwidth_observer,
100 RemoteBitrateEstimator* remote_bitrate_estimator,
101 RtcpRttStats* rtcp_rtt_stats,
102 RtcpIntraFrameObserver* intra_frame_observer,
105 // Used by ViEChannelScoped, forcing a manager user to use scoped.
106 // Returns a pointer to the channel with id 'channel_id'.
107 ViEChannel* ViEChannelPtr(int channel_id) const;
109 // Methods used by ViECaptureScoped and ViEEncoderScoped.
110 // Gets the ViEEncoder used as input for video_channel_id
111 ViEEncoder* ViEEncoderPtr(int video_channel_id) const;
113 // Returns a free channel id, -1 if failing.
116 // Returns a previously allocated channel id.
117 void ReturnChannelId(int channel_id);
119 // Returns the iterator to the ChannelGroup containing |channel_id|.
120 ChannelGroup* FindGroup(int channel_id) const;
122 // Returns true if at least one other channels uses the same ViEEncoder as
124 bool ChannelUsingViEEncoder(int channel_id) const;
125 void ChannelsUsingViEEncoder(int channel_id, ChannelList* channels) const;
127 // Protects channel_map_ and free_channel_ids_.
128 CriticalSectionWrapper* channel_id_critsect_;
130 int number_of_cores_;
132 // TODO(mflodman) Make part of channel group.
133 ChannelMap channel_map_;
134 bool* free_channel_ids_;
135 int free_channel_ids_size_;
137 // List with all channel groups.
138 std::list<ChannelGroup*> channel_groups_;
140 // TODO(mflodman) Make part of channel group.
141 // Maps Channel id -> ViEEncoder.
142 EncoderMap vie_encoder_map_;
143 VoEVideoSync* voice_sync_interface_;
145 VoiceEngine* voice_engine_;
146 ProcessThread* module_process_thread_;
147 const Config& engine_config_;
150 class ViEChannelManagerScoped: private ViEManagerScopedBase {
152 explicit ViEChannelManagerScoped(
153 const ViEChannelManager& vie_channel_manager);
154 ViEChannel* Channel(int vie_channel_id) const;
155 ViEEncoder* Encoder(int vie_channel_id) const;
157 // Returns true if at least one other channels uses the same ViEEncoder as
159 bool ChannelUsingViEEncoder(int channel_id) const;
161 // Returns a list with pointers to all channels using the same encoder as the
162 // channel with |channel_id|, including the one with the specified id.
163 void ChannelsUsingViEEncoder(int channel_id, ChannelList* channels) const;
166 } // namespace webrtc
168 #endif // WEBRTC_VIDEO_ENGINE_VIE_CHANNEL_MANAGER_H_