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/*
* Copyright 2016 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_API_TRACKMEDIAINFOMAP_H_
#define WEBRTC_API_TRACKMEDIAINFOMAP_H_
#include <map>
#include <memory>
#include <vector>
#include "webrtc/api/mediastreaminterface.h"
#include "webrtc/api/rtpreceiverinterface.h"
#include "webrtc/api/rtpsenderinterface.h"
#include "webrtc/base/refcount.h"
#include "webrtc/media/base/mediachannel.h"
namespace webrtc {
// Audio/video tracks and sender/receiver statistical information are associated
// with each other based on attachments to RTP senders/receivers. This class
// maps that relationship, in both directions, so that stats about a track can
// be retrieved on a per-attachment basis.
//
// An RTP sender/receiver sends or receives media for a set of SSRCs. The media
// comes from an audio/video track that is attached to it.
// |[Voice/Video][Sender/Receiver]Info| has statistical information for a set of
// SSRCs. Looking at the RTP senders and receivers uncovers the track <-> info
// relationships, which this class does.
class TrackMediaInfoMap {
public:
TrackMediaInfoMap(
std::unique_ptr<cricket::VoiceMediaInfo> voice_media_info,
std::unique_ptr<cricket::VideoMediaInfo> video_media_info,
const std::vector<rtc::scoped_refptr<RtpSenderInterface>>& rtp_senders,
const std::vector<rtc::scoped_refptr<RtpReceiverInterface>>&
rtp_receivers);
const cricket::VoiceMediaInfo* voice_media_info() const {
return voice_media_info_.get();
}
const cricket::VideoMediaInfo* video_media_info() const {
return video_media_info_.get();
}
const std::vector<cricket::VoiceSenderInfo*>* GetVoiceSenderInfos(
const AudioTrackInterface& local_audio_track) const;
const cricket::VoiceReceiverInfo* GetVoiceReceiverInfo(
const AudioTrackInterface& remote_audio_track) const;
const std::vector<cricket::VideoSenderInfo*>* GetVideoSenderInfos(
const VideoTrackInterface& local_video_track) const;
const cricket::VideoReceiverInfo* GetVideoReceiverInfo(
const VideoTrackInterface& remote_video_track) const;
rtc::scoped_refptr<AudioTrackInterface> GetAudioTrack(
const cricket::VoiceSenderInfo& voice_sender_info) const;
rtc::scoped_refptr<AudioTrackInterface> GetAudioTrack(
const cricket::VoiceReceiverInfo& voice_receiver_info) const;
rtc::scoped_refptr<VideoTrackInterface> GetVideoTrack(
const cricket::VideoSenderInfo& video_sender_info) const;
rtc::scoped_refptr<VideoTrackInterface> GetVideoTrack(
const cricket::VideoReceiverInfo& video_receiver_info) const;
private:
std::unique_ptr<cricket::VoiceMediaInfo> voice_media_info_;
std::unique_ptr<cricket::VideoMediaInfo> video_media_info_;
// These maps map tracks (identified by a pointer) to their corresponding info
// object of the correct kind. One track can map to multiple info objects.
std::map<const AudioTrackInterface*, std::vector<cricket::VoiceSenderInfo*>>
voice_infos_by_local_track_;
std::map<const AudioTrackInterface*, cricket::VoiceReceiverInfo*>
voice_info_by_remote_track_;
std::map<const VideoTrackInterface*, std::vector<cricket::VideoSenderInfo*>>
video_infos_by_local_track_;
std::map<const VideoTrackInterface*, cricket::VideoReceiverInfo*>
video_info_by_remote_track_;
// These maps map info objects to their corresponding tracks. They are always
// the inverse of the maps above. One info object always maps to only one
// track.
std::map<const cricket::VoiceSenderInfo*,
rtc::scoped_refptr<AudioTrackInterface>> audio_track_by_sender_info_;
std::map<const cricket::VoiceReceiverInfo*,
rtc::scoped_refptr<AudioTrackInterface>> audio_track_by_receiver_info_;
std::map<const cricket::VideoSenderInfo*,
rtc::scoped_refptr<VideoTrackInterface>> video_track_by_sender_info_;
std::map<const cricket::VideoReceiverInfo*,
rtc::scoped_refptr<VideoTrackInterface>> video_track_by_receiver_info_;
};
} // namespace webrtc
#endif // WEBRTC_API_TRACKMEDIAINFOMAP_H_
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