You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
288 lines
12 KiB
288 lines
12 KiB
/*
|
|
* 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.
|
|
*/
|
|
|
|
#include "pc/track_media_info_map.h"
|
|
|
|
#include <set>
|
|
#include <string>
|
|
#include <utility>
|
|
|
|
#include "rtc_base/thread.h"
|
|
|
|
namespace webrtc {
|
|
|
|
namespace {
|
|
|
|
template <typename K, typename V>
|
|
V FindValueOrNull(const std::map<K, V>& map, const K& key) {
|
|
auto it = map.find(key);
|
|
return (it != map.end()) ? it->second : nullptr;
|
|
}
|
|
|
|
template <typename K, typename V>
|
|
const V* FindAddressOrNull(const std::map<K, V>& map, const K& key) {
|
|
auto it = map.find(key);
|
|
return (it != map.end()) ? &it->second : nullptr;
|
|
}
|
|
|
|
void GetAudioAndVideoTrackBySsrc(
|
|
const std::vector<rtc::scoped_refptr<RtpSenderInternal>>& rtp_senders,
|
|
const std::vector<rtc::scoped_refptr<RtpReceiverInternal>>& rtp_receivers,
|
|
std::map<uint32_t, AudioTrackInterface*>* local_audio_track_by_ssrc,
|
|
std::map<uint32_t, VideoTrackInterface*>* local_video_track_by_ssrc,
|
|
std::map<uint32_t, AudioTrackInterface*>* remote_audio_track_by_ssrc,
|
|
std::map<uint32_t, VideoTrackInterface*>* remote_video_track_by_ssrc,
|
|
AudioTrackInterface** unsignaled_audio_track,
|
|
VideoTrackInterface** unsignaled_video_track) {
|
|
RTC_DCHECK(local_audio_track_by_ssrc->empty());
|
|
RTC_DCHECK(local_video_track_by_ssrc->empty());
|
|
RTC_DCHECK(remote_audio_track_by_ssrc->empty());
|
|
RTC_DCHECK(remote_video_track_by_ssrc->empty());
|
|
for (const auto& rtp_sender : rtp_senders) {
|
|
cricket::MediaType media_type = rtp_sender->media_type();
|
|
MediaStreamTrackInterface* track = rtp_sender->track();
|
|
if (!track) {
|
|
continue;
|
|
}
|
|
// TODO(deadbeef): |ssrc| should be removed in favor of |GetParameters|.
|
|
uint32_t ssrc = rtp_sender->ssrc();
|
|
if (ssrc != 0) {
|
|
if (media_type == cricket::MEDIA_TYPE_AUDIO) {
|
|
RTC_DCHECK(local_audio_track_by_ssrc->find(ssrc) ==
|
|
local_audio_track_by_ssrc->end());
|
|
(*local_audio_track_by_ssrc)[ssrc] =
|
|
static_cast<AudioTrackInterface*>(track);
|
|
} else {
|
|
RTC_DCHECK(local_video_track_by_ssrc->find(ssrc) ==
|
|
local_video_track_by_ssrc->end());
|
|
(*local_video_track_by_ssrc)[ssrc] =
|
|
static_cast<VideoTrackInterface*>(track);
|
|
}
|
|
}
|
|
}
|
|
for (const auto& rtp_receiver : rtp_receivers) {
|
|
cricket::MediaType media_type = rtp_receiver->media_type();
|
|
MediaStreamTrackInterface* track = rtp_receiver->track();
|
|
RTC_DCHECK(track);
|
|
RtpParameters params = rtp_receiver->GetParameters();
|
|
for (const RtpEncodingParameters& encoding : params.encodings) {
|
|
if (!encoding.ssrc) {
|
|
if (media_type == cricket::MEDIA_TYPE_AUDIO) {
|
|
*unsignaled_audio_track = static_cast<AudioTrackInterface*>(track);
|
|
} else {
|
|
RTC_DCHECK(media_type == cricket::MEDIA_TYPE_VIDEO);
|
|
*unsignaled_video_track = static_cast<VideoTrackInterface*>(track);
|
|
}
|
|
continue;
|
|
}
|
|
if (media_type == cricket::MEDIA_TYPE_AUDIO) {
|
|
RTC_DCHECK(remote_audio_track_by_ssrc->find(*encoding.ssrc) ==
|
|
remote_audio_track_by_ssrc->end());
|
|
(*remote_audio_track_by_ssrc)[*encoding.ssrc] =
|
|
static_cast<AudioTrackInterface*>(track);
|
|
} else {
|
|
RTC_DCHECK(remote_video_track_by_ssrc->find(*encoding.ssrc) ==
|
|
remote_video_track_by_ssrc->end());
|
|
(*remote_video_track_by_ssrc)[*encoding.ssrc] =
|
|
static_cast<VideoTrackInterface*>(track);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
TrackMediaInfoMap::TrackMediaInfoMap(
|
|
std::unique_ptr<cricket::VoiceMediaInfo> voice_media_info,
|
|
std::unique_ptr<cricket::VideoMediaInfo> video_media_info,
|
|
const std::vector<rtc::scoped_refptr<RtpSenderInternal>>& rtp_senders,
|
|
const std::vector<rtc::scoped_refptr<RtpReceiverInternal>>& rtp_receivers)
|
|
: voice_media_info_(std::move(voice_media_info)),
|
|
video_media_info_(std::move(video_media_info)) {
|
|
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
|
|
|
|
std::map<uint32_t, AudioTrackInterface*> local_audio_track_by_ssrc;
|
|
std::map<uint32_t, VideoTrackInterface*> local_video_track_by_ssrc;
|
|
std::map<uint32_t, AudioTrackInterface*> remote_audio_track_by_ssrc;
|
|
std::map<uint32_t, VideoTrackInterface*> remote_video_track_by_ssrc;
|
|
AudioTrackInterface* unsignaled_audio_track = nullptr;
|
|
VideoTrackInterface* unsignaled_video_track = nullptr;
|
|
GetAudioAndVideoTrackBySsrc(
|
|
rtp_senders, rtp_receivers, &local_audio_track_by_ssrc,
|
|
&local_video_track_by_ssrc, &remote_audio_track_by_ssrc,
|
|
&remote_video_track_by_ssrc, &unsignaled_audio_track,
|
|
&unsignaled_video_track);
|
|
|
|
for (const auto& sender : rtp_senders) {
|
|
attachment_id_by_track_[sender->track()] = sender->AttachmentId();
|
|
}
|
|
for (const auto& receiver : rtp_receivers) {
|
|
attachment_id_by_track_[receiver->track()] = receiver->AttachmentId();
|
|
}
|
|
|
|
if (voice_media_info_) {
|
|
for (auto& sender_info : voice_media_info_->senders) {
|
|
AudioTrackInterface* associated_track =
|
|
FindValueOrNull(local_audio_track_by_ssrc, sender_info.ssrc());
|
|
if (associated_track) {
|
|
// One sender is associated with at most one track.
|
|
// One track may be associated with multiple senders.
|
|
audio_track_by_sender_info_[&sender_info] = associated_track;
|
|
voice_infos_by_local_track_[associated_track].push_back(&sender_info);
|
|
}
|
|
if (sender_info.ssrc() == 0)
|
|
continue; // Unconnected SSRC. bugs.webrtc.org/8673
|
|
RTC_CHECK(voice_info_by_sender_ssrc_.count(sender_info.ssrc()) == 0)
|
|
<< "Duplicate voice sender SSRC: " << sender_info.ssrc();
|
|
voice_info_by_sender_ssrc_[sender_info.ssrc()] = &sender_info;
|
|
}
|
|
for (auto& receiver_info : voice_media_info_->receivers) {
|
|
AudioTrackInterface* associated_track =
|
|
FindValueOrNull(remote_audio_track_by_ssrc, receiver_info.ssrc());
|
|
if (associated_track) {
|
|
// One receiver is associated with at most one track, which is uniquely
|
|
// associated with that receiver.
|
|
audio_track_by_receiver_info_[&receiver_info] = associated_track;
|
|
RTC_DCHECK(voice_info_by_remote_track_.find(associated_track) ==
|
|
voice_info_by_remote_track_.end());
|
|
voice_info_by_remote_track_[associated_track] = &receiver_info;
|
|
} else if (unsignaled_audio_track) {
|
|
audio_track_by_receiver_info_[&receiver_info] = unsignaled_audio_track;
|
|
voice_info_by_remote_track_[unsignaled_audio_track] = &receiver_info;
|
|
}
|
|
RTC_CHECK(voice_info_by_receiver_ssrc_.count(receiver_info.ssrc()) == 0)
|
|
<< "Duplicate voice receiver SSRC: " << receiver_info.ssrc();
|
|
voice_info_by_receiver_ssrc_[receiver_info.ssrc()] = &receiver_info;
|
|
}
|
|
}
|
|
if (video_media_info_) {
|
|
for (auto& sender_info : video_media_info_->senders) {
|
|
std::set<uint32_t> ssrcs;
|
|
ssrcs.insert(sender_info.ssrc());
|
|
for (auto& ssrc_group : sender_info.ssrc_groups) {
|
|
for (auto ssrc : ssrc_group.ssrcs) {
|
|
ssrcs.insert(ssrc);
|
|
}
|
|
}
|
|
for (auto ssrc : ssrcs) {
|
|
VideoTrackInterface* associated_track =
|
|
FindValueOrNull(local_video_track_by_ssrc, ssrc);
|
|
if (associated_track) {
|
|
// One sender is associated with at most one track.
|
|
// One track may be associated with multiple senders.
|
|
video_track_by_sender_info_[&sender_info] = associated_track;
|
|
video_infos_by_local_track_[associated_track].push_back(&sender_info);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
for (auto& sender_info : video_media_info_->aggregated_senders) {
|
|
if (sender_info.ssrc() == 0)
|
|
continue; // Unconnected SSRC. bugs.webrtc.org/8673
|
|
RTC_DCHECK(video_info_by_sender_ssrc_.count(sender_info.ssrc()) == 0)
|
|
<< "Duplicate video sender SSRC: " << sender_info.ssrc();
|
|
video_info_by_sender_ssrc_[sender_info.ssrc()] = &sender_info;
|
|
VideoTrackInterface* associated_track =
|
|
FindValueOrNull(local_video_track_by_ssrc, sender_info.ssrc());
|
|
if (associated_track) {
|
|
video_track_by_sender_info_[&sender_info] = associated_track;
|
|
}
|
|
}
|
|
for (auto& receiver_info : video_media_info_->receivers) {
|
|
VideoTrackInterface* associated_track =
|
|
FindValueOrNull(remote_video_track_by_ssrc, receiver_info.ssrc());
|
|
if (associated_track) {
|
|
// One receiver is associated with at most one track, which is uniquely
|
|
// associated with that receiver.
|
|
video_track_by_receiver_info_[&receiver_info] = associated_track;
|
|
RTC_DCHECK(video_info_by_remote_track_.find(associated_track) ==
|
|
video_info_by_remote_track_.end());
|
|
video_info_by_remote_track_[associated_track] = &receiver_info;
|
|
} else if (unsignaled_video_track) {
|
|
video_track_by_receiver_info_[&receiver_info] = unsignaled_video_track;
|
|
video_info_by_remote_track_[unsignaled_video_track] = &receiver_info;
|
|
}
|
|
RTC_DCHECK(video_info_by_receiver_ssrc_.count(receiver_info.ssrc()) == 0)
|
|
<< "Duplicate video receiver SSRC: " << receiver_info.ssrc();
|
|
video_info_by_receiver_ssrc_[receiver_info.ssrc()] = &receiver_info;
|
|
}
|
|
}
|
|
}
|
|
|
|
const std::vector<cricket::VoiceSenderInfo*>*
|
|
TrackMediaInfoMap::GetVoiceSenderInfos(
|
|
const AudioTrackInterface& local_audio_track) const {
|
|
return FindAddressOrNull(voice_infos_by_local_track_, &local_audio_track);
|
|
}
|
|
|
|
const cricket::VoiceReceiverInfo* TrackMediaInfoMap::GetVoiceReceiverInfo(
|
|
const AudioTrackInterface& remote_audio_track) const {
|
|
return FindValueOrNull(voice_info_by_remote_track_, &remote_audio_track);
|
|
}
|
|
|
|
const std::vector<cricket::VideoSenderInfo*>*
|
|
TrackMediaInfoMap::GetVideoSenderInfos(
|
|
const VideoTrackInterface& local_video_track) const {
|
|
return FindAddressOrNull(video_infos_by_local_track_, &local_video_track);
|
|
}
|
|
|
|
const cricket::VideoReceiverInfo* TrackMediaInfoMap::GetVideoReceiverInfo(
|
|
const VideoTrackInterface& remote_video_track) const {
|
|
return FindValueOrNull(video_info_by_remote_track_, &remote_video_track);
|
|
}
|
|
|
|
const cricket::VoiceSenderInfo* TrackMediaInfoMap::GetVoiceSenderInfoBySsrc(
|
|
uint32_t ssrc) const {
|
|
return FindValueOrNull(voice_info_by_sender_ssrc_, ssrc);
|
|
}
|
|
const cricket::VoiceReceiverInfo* TrackMediaInfoMap::GetVoiceReceiverInfoBySsrc(
|
|
uint32_t ssrc) const {
|
|
return FindValueOrNull(voice_info_by_receiver_ssrc_, ssrc);
|
|
}
|
|
|
|
const cricket::VideoSenderInfo* TrackMediaInfoMap::GetVideoSenderInfoBySsrc(
|
|
uint32_t ssrc) const {
|
|
return FindValueOrNull(video_info_by_sender_ssrc_, ssrc);
|
|
}
|
|
|
|
const cricket::VideoReceiverInfo* TrackMediaInfoMap::GetVideoReceiverInfoBySsrc(
|
|
uint32_t ssrc) const {
|
|
return FindValueOrNull(video_info_by_receiver_ssrc_, ssrc);
|
|
}
|
|
|
|
rtc::scoped_refptr<AudioTrackInterface> TrackMediaInfoMap::GetAudioTrack(
|
|
const cricket::VoiceSenderInfo& voice_sender_info) const {
|
|
return FindValueOrNull(audio_track_by_sender_info_, &voice_sender_info);
|
|
}
|
|
|
|
rtc::scoped_refptr<AudioTrackInterface> TrackMediaInfoMap::GetAudioTrack(
|
|
const cricket::VoiceReceiverInfo& voice_receiver_info) const {
|
|
return FindValueOrNull(audio_track_by_receiver_info_, &voice_receiver_info);
|
|
}
|
|
|
|
rtc::scoped_refptr<VideoTrackInterface> TrackMediaInfoMap::GetVideoTrack(
|
|
const cricket::VideoSenderInfo& video_sender_info) const {
|
|
return FindValueOrNull(video_track_by_sender_info_, &video_sender_info);
|
|
}
|
|
|
|
rtc::scoped_refptr<VideoTrackInterface> TrackMediaInfoMap::GetVideoTrack(
|
|
const cricket::VideoReceiverInfo& video_receiver_info) const {
|
|
return FindValueOrNull(video_track_by_receiver_info_, &video_receiver_info);
|
|
}
|
|
|
|
absl::optional<int> TrackMediaInfoMap::GetAttachmentIdByTrack(
|
|
const MediaStreamTrackInterface* track) const {
|
|
auto it = attachment_id_by_track_.find(track);
|
|
return it != attachment_id_by_track_.end() ? absl::optional<int>(it->second)
|
|
: absl::nullopt;
|
|
}
|
|
|
|
} // namespace webrtc
|