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Implement transceiver.stop()

Browse Source 
This adds RtpTransceiver.StopStandard(), which behaves according to
the specification at
https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-stop

It modifies RTCPeerConnection.getTransceivers() to return only
transceivers that have not been stopped.

Rebase of armax' https://webrtc-review.googlesource.com/c/src/+/172762

Bug: chromium:980879
Change-Id: I7d383ee874ccc0a006fdcf280496b5d4235425ce
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/180580
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Sami Kalliomäki <sakal@webrtc.org>
Reviewed-by: Guido Urdaneta <guidou@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31893}
This commit is contained in:
Harald Alvestrand 2020-08-10 14:41:03 +02:00 committed by Commit Bot
parent 582102c9b7
commit 11dc6571cb
24 changed files with 604 additions and 253 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
api/rtp_transceiver_interface.cc
View File

@ -25,6 +25,23 @@ RtpTransceiverInterface::fired_direction() const {
return absl::nullopt;
}
bool RtpTransceiverInterface::stopping() const {
return false;
}
void RtpTransceiverInterface::Stop() {
StopInternal();
}
RTCError RtpTransceiverInterface::StopStandard() {
RTC_NOTREACHED() << "DEBUG: RtpTransceiverInterface::StopStandard called";
return RTCError::OK();
}
void RtpTransceiverInterface::StopInternal() {
RTC_NOTREACHED() << "DEBUG: RtpTransceiverInterface::StopInternal called";
}
RTCError RtpTransceiverInterface::SetCodecPreferences(
rtc::ArrayView<RtpCodecCapability>) {
RTC_NOTREACHED() << "Not implemented";
@ -47,4 +64,17 @@ webrtc::RTCError RtpTransceiverInterface::SetOfferedRtpHeaderExtensions(
return webrtc::RTCError(webrtc::RTCErrorType::UNSUPPORTED_OPERATION);
}
// TODO(bugs.webrtc.org/11839) Remove default implementations when clients
// are updated.
void RtpTransceiverInterface::SetDirection(
RtpTransceiverDirection new_direction) {
SetDirectionWithError(new_direction);
}
RTCError RtpTransceiverInterface::SetDirectionWithError(
RtpTransceiverDirection new_direction) {
RTC_NOTREACHED() << "Default implementation called";
return RTCError::OK();
}
} // namespace webrtc

30
api/rtp_transceiver_interface.h
View File

@ -89,6 +89,16 @@ class RTC_EXPORT RtpTransceiverInterface : public rtc::RefCountInterface {
// https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-stopped
virtual bool stopped() const = 0;
// The stopping attribute indicates that the user has indicated that the
// sender of this transceiver will stop sending, and that the receiver will
// no longer receive. It is always true if stopped() is true.
// If stopping() is true and stopped() is false, it means that the
// transceiver's stop() method has been called, but the negotiation with
// the other end for shutting down the transceiver is not yet done.
// https://w3c.github.io/webrtc-pc/#dfn-stopping-0
// TODO(hta): Remove default implementation.
virtual bool stopping() const;
// The direction attribute indicates the preferred direction of this
// transceiver, which will be used in calls to CreateOffer and CreateAnswer.
// https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-direction
@ -99,7 +109,10 @@ class RTC_EXPORT RtpTransceiverInterface : public rtc::RefCountInterface {
// CreateOffer and CreateAnswer mark the corresponding media descriptions as
// sendrecv, sendonly, recvonly, or inactive.
// https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-direction
virtual void SetDirection(RtpTransceiverDirection new_direction) = 0;
// TODO(hta): Deprecate SetDirection without error and rename
// SetDirectionWithError to SetDirection, remove default implementations.
virtual void SetDirection(RtpTransceiverDirection new_direction);
virtual RTCError SetDirectionWithError(RtpTransceiverDirection new_direction);
// The current_direction attribute indicates the current direction negotiated
// for this transceiver. If this transceiver has never been represented in an
@ -114,10 +127,19 @@ class RTC_EXPORT RtpTransceiverInterface : public rtc::RefCountInterface {
// Exposed in the public interface for use by Chromium.
virtual absl::optional<RtpTransceiverDirection> fired_direction() const;
// The Stop method irreversibly stops the RtpTransceiver. The sender of this
// transceiver will no longer send, the receiver will no longer receive.
// Initiates a stop of the transceiver.
// The stop is complete when stopped() returns true.
// A stopped transceiver can be reused for a different track.
// https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-stop
virtual void Stop() = 0;
// TODO(hta): Rename to Stop() when users of the non-standard Stop() are
// updated.
virtual RTCError StopStandard();
// Stops a transceiver immediately, without waiting for signalling.
// This is an internal function, and is exposed for historical reasons.
// https://w3c.github.io/webrtc-pc/#dfn-stop-the-rtcrtptransceiver
virtual void StopInternal();
RTC_DEPRECATED virtual void Stop();
// The SetCodecPreferences method overrides the default codec preferences used
// by WebRTC for this transceiver.

17
pc/media_session.cc
View File

@ -1507,7 +1507,6 @@ std::unique_ptr<SessionDescription> MediaSessionDescriptionFactory::CreateOffer(
RtpDataCodecs offer_rtp_data_codecs;
GetCodecsForOffer(current_active_contents, &offer_audio_codecs,
&offer_video_codecs, &offer_rtp_data_codecs);
if (!session_options.vad_enabled) {
// If application doesn't want CN codecs in offer.
StripCNCodecs(&offer_audio_codecs);
@ -1796,15 +1795,13 @@ const AudioCodecs& MediaSessionDescriptionFactory::GetAudioCodecsForOffer(
switch (direction) {
// If stream is inactive - generate list as if sendrecv.
case RtpTransceiverDirection::kSendRecv:
case RtpTransceiverDirection::kStopped:
case RtpTransceiverDirection::kInactive:
return audio_sendrecv_codecs_;
case RtpTransceiverDirection::kSendOnly:
return audio_send_codecs_;
case RtpTransceiverDirection::kRecvOnly:
return audio_recv_codecs_;
case RtpTransceiverDirection::kStopped:
RTC_NOTREACHED();
return audio_sendrecv_codecs_;
}
}
@ -1815,6 +1812,7 @@ const AudioCodecs& MediaSessionDescriptionFactory::GetAudioCodecsForAnswer(
// For inactive and sendrecv answers, generate lists as if we were to accept
// the offer's direction. See RFC 3264 Section 6.1.
case RtpTransceiverDirection::kSendRecv:
case RtpTransceiverDirection::kStopped:
case RtpTransceiverDirection::kInactive:
return GetAudioCodecsForOffer(
webrtc::RtpTransceiverDirectionReversed(offer));
@ -1822,9 +1820,6 @@ const AudioCodecs& MediaSessionDescriptionFactory::GetAudioCodecsForAnswer(
return audio_send_codecs_;
case RtpTransceiverDirection::kRecvOnly:
return audio_recv_codecs_;
case RtpTransceiverDirection::kStopped:
RTC_NOTREACHED();
return audio_sendrecv_codecs_;
}
}
@ -1833,15 +1828,13 @@ const VideoCodecs& MediaSessionDescriptionFactory::GetVideoCodecsForOffer(
switch (direction) {
// If stream is inactive - generate list as if sendrecv.
case RtpTransceiverDirection::kSendRecv:
case RtpTransceiverDirection::kStopped:
case RtpTransceiverDirection::kInactive:
return video_sendrecv_codecs_;
case RtpTransceiverDirection::kSendOnly:
return video_send_codecs_;
case RtpTransceiverDirection::kRecvOnly:
return video_recv_codecs_;
case RtpTransceiverDirection::kStopped:
RTC_NOTREACHED();
return video_sendrecv_codecs_;
}
}
@ -1852,6 +1845,7 @@ const VideoCodecs& MediaSessionDescriptionFactory::GetVideoCodecsForAnswer(
// For inactive and sendrecv answers, generate lists as if we were to accept
// the offer's direction. See RFC 3264 Section 6.1.
case RtpTransceiverDirection::kSendRecv:
case RtpTransceiverDirection::kStopped:
case RtpTransceiverDirection::kInactive:
return GetVideoCodecsForOffer(
webrtc::RtpTransceiverDirectionReversed(offer));
@ -1859,9 +1853,6 @@ const VideoCodecs& MediaSessionDescriptionFactory::GetVideoCodecsForAnswer(
return video_send_codecs_;
case RtpTransceiverDirection::kRecvOnly:
return video_recv_codecs_;
case RtpTransceiverDirection::kStopped:
RTC_NOTREACHED();
return video_sendrecv_codecs_;
}
}

3
pc/media_session_unittest.cc
View File

@ -4863,7 +4863,8 @@ void TestAudioCodecsAnswer(RtpTransceiverDirection offer_direction,
kResultSendrecv_SendrecvCodecs);
}
break;
default:
case RtpTransceiverDirection::kStopped:
// This does not happen in any current test.
RTC_NOTREACHED();
}

153
pc/peer_connection.cc
View File

@ -1048,7 +1048,7 @@ PeerConnection::~PeerConnection() {
// AudioRtpSender has a reference to the StatsCollector it will update when
// stopping.
for (const auto& transceiver : transceivers_) {
transceiver->Stop();
transceiver->StopInternal();
}
stats_.reset(nullptr);
@ -1535,6 +1535,11 @@ PeerConnection::AddTrackUnifiedPlan(
RTC_LOG(LS_INFO) << "Reusing an existing "
<< cricket::MediaTypeToString(transceiver->media_type())
<< " transceiver for AddTrack.";
if (transceiver->stopping()) {
LOG_AND_RETURN_ERROR(RTCErrorType::INVALID_PARAMETER,
"The existing transceiver is stopping.");
}
if (transceiver->direction() == RtpTransceiverDirection::kRecvOnly) {
transceiver->internal()->set_direction(
RtpTransceiverDirection::kSendRecv);
@ -1933,6 +1938,9 @@ PeerConnection::GetSendersInternal() const {
std::vector<rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>>>
all_senders;
for (const auto& transceiver : transceivers_) {
if (IsUnifiedPlan() && transceiver->internal()->stopped())
continue;
auto senders = transceiver->internal()->senders();
all_senders.insert(all_senders.end(), senders.begin(), senders.end());
}
@ -1956,6 +1964,9 @@ PeerConnection::GetReceiversInternal() const {
rtc::scoped_refptr<RtpReceiverProxyWithInternal<RtpReceiverInternal>>>
all_receivers;
for (const auto& transceiver : transceivers_) {
if (IsUnifiedPlan() && transceiver->internal()->stopped())
continue;
auto receivers = transceiver->internal()->receivers();
all_receivers.insert(all_receivers.end(), receivers.begin(),
receivers.end());
@ -1970,7 +1981,13 @@ PeerConnection::GetTransceivers() const {
<< "GetTransceivers is only supported with Unified Plan SdpSemantics.";
std::vector<rtc::scoped_refptr<RtpTransceiverInterface>> all_transceivers;
for (const auto& transceiver : transceivers_) {
all_transceivers.push_back(transceiver);
// Temporary fix: Do not show stopped transceivers.
// The long term fix is to remove them from transceivers_, but this
// turns out to cause issues with audio channel lifetimes.
// TODO(https://crbug.com/webrtc/11840): Fix issue.
if (!transceiver->stopped()) {
all_transceivers.push_back(transceiver);
}
}
return all_transceivers;
}
@ -2581,6 +2598,35 @@ void PeerConnection::DoSetLocalDescription(
RTC_DCHECK(local_description());
if (local_description()->GetType() == SdpType::kAnswer) {
// 3.2.10.1: For each transceiver in the connection's set of transceivers
// run the following steps:
if (IsUnifiedPlan()) {
for (auto it = transceivers_.begin(); it != transceivers_.end();) {
const auto& transceiver = *it;
// 3.2.10.1.1: If transceiver is stopped, associated with an m= section
// and the associated m= section is rejected in
// connection.[[CurrentLocalDescription]] or
// connection.[[CurrentRemoteDescription]], remove the
// transceiver from the connection's set of transceivers.
if (transceiver->stopped()) {
const ContentInfo* content =
FindMediaSectionForTransceiver(transceiver, local_description());
if (content && content->rejected) {
RTC_LOG(LS_INFO) << "Dissociating transceiver"
<< " since the media section is being recycled.";
(*it)->internal()->set_mid(absl::nullopt);
(*it)->internal()->set_mline_index(absl::nullopt);
it = transceivers_.erase(it);
} else {
++it;
}
} else {
++it;
}
}
}
// TODO(deadbeef): We already had to hop to the network thread for
// MaybeStartGathering...
network_thread()->Invoke<void>(
@ -2670,6 +2716,10 @@ RTCError PeerConnection::ApplyLocalDescription(
std::vector<rtc::scoped_refptr<RtpTransceiverInterface>> remove_list;
std::vector<rtc::scoped_refptr<MediaStreamInterface>> removed_streams;
for (const auto& transceiver : transceivers_) {
if (transceiver->stopped()) {
continue;
}
// 2.2.7.1.1.(6-9): Set sender and receiver's transport slots.
// Note that code paths that don't set MID won't be able to use
// information about DTLS transports.
@ -2755,6 +2805,9 @@ RTCError PeerConnection::ApplyLocalDescription(
if (IsUnifiedPlan()) {
for (const auto& transceiver : transceivers_) {
if (transceiver->stopped()) {
continue;
}
const ContentInfo* content =
FindMediaSectionForTransceiver(transceiver, local_description());
if (!content) {
@ -3263,7 +3316,7 @@ RTCError PeerConnection::ApplyRemoteDescription(
if (content->rejected && !transceiver->stopped()) {
RTC_LOG(LS_INFO) << "Stopping transceiver for MID=" << content->name
<< " since the media section was rejected.";
transceiver->Stop();
transceiver->StopInternal();
}
if (!content->rejected &&
RtpTransceiverDirectionHasRecv(local_direction)) {
@ -4339,7 +4392,9 @@ void PeerConnection::Close() {
NoteUsageEvent(UsageEvent::CLOSE_CALLED);
for (const auto& transceiver : transceivers_) {
transceiver->Stop();
transceiver->internal()->SetPeerConnectionClosed();
if (!transceiver->stopped())
transceiver->StopInternal();
}
// Ensure that all asynchronous stats requests are completed before destroying
@ -4905,10 +4960,15 @@ static cricket::MediaDescriptionOptions
GetMediaDescriptionOptionsForTransceiver(
rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>>
transceiver,
const std::string& mid) {
const std::string& mid,
bool is_create_offer) {
// NOTE: a stopping transceiver should be treated as a stopped one in
// createOffer as specified in
// https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-createoffer.
bool stopped =
is_create_offer ? transceiver->stopping() : transceiver->stopped();
cricket::MediaDescriptionOptions media_description_options(
transceiver->media_type(), mid, transceiver->direction(),
transceiver->stopped());
transceiver->media_type(), mid, transceiver->direction(), stopped);
media_description_options.codec_preferences =
transceiver->codec_preferences();
media_description_options.header_extensions =
@ -4918,9 +4978,8 @@ GetMediaDescriptionOptionsForTransceiver(
// sendrecv.
// 2. If the MSID is included, then it must be included in any subsequent
// offer/answer exactly the same until the RtpTransceiver is stopped.
if (transceiver->stopped() ||
(!RtpTransceiverDirectionHasSend(transceiver->direction()) &&
!transceiver->internal()->has_ever_been_used_to_send())) {
if (stopped || (!RtpTransceiverDirectionHasSend(transceiver->direction()) &&
!transceiver->internal()->has_ever_been_used_to_send())) {
return media_description_options;
}
@ -5014,25 +5073,39 @@ void PeerConnection::GetOptionsForUnifiedPlanOffer(
: remote_content->media_description()->type());
if (media_type == cricket::MEDIA_TYPE_AUDIO ||
media_type == cricket::MEDIA_TYPE_VIDEO) {
auto transceiver = GetAssociatedTransceiver(mid);
RTC_CHECK(transceiver);
// A media section is considered eligible for recycling if it is marked as
// rejected in either the current local or current remote description.
if (had_been_rejected && transceiver->stopped()) {
auto transceiver = GetAssociatedTransceiver(mid);
if (!transceiver) {
// No associated transceiver. The media section has been stopped.
recycleable_mline_indices.push(i);
session_options->media_description_options.push_back(
cricket::MediaDescriptionOptions(transceiver->media_type(), mid,
cricket::MediaDescriptionOptions(media_type, mid,
RtpTransceiverDirection::kInactive,
/*stopped=*/true));
recycleable_mline_indices.push(i);
} else {
session_options->media_description_options.push_back(
GetMediaDescriptionOptionsForTransceiver(transceiver, mid));
// CreateOffer shouldn't really cause any state changes in
// PeerConnection, but we need a way to match new transceivers to new
// media sections in SetLocalDescription and JSEP specifies this is done
// by recording the index of the media section generated for the
// transceiver in the offer.
transceiver->internal()->set_mline_index(i);
// NOTE: a stopping transceiver should be treated as a stopped one in
// createOffer as specified in
// https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-createoffer.
if (had_been_rejected && transceiver->stopping()) {
session_options->media_description_options.push_back(
cricket::MediaDescriptionOptions(
transceiver->media_type(), mid,
RtpTransceiverDirection::kInactive,
/*stopped=*/true));
recycleable_mline_indices.push(i);
} else {
session_options->media_description_options.push_back(
GetMediaDescriptionOptionsForTransceiver(
transceiver, mid,
/*is_create_offer=*/true));
// CreateOffer shouldn't really cause any state changes in
// PeerConnection, but we need a way to match new transceivers to new
// media sections in SetLocalDescription and JSEP specifies this is
// done by recording the index of the media section generated for the
// transceiver in the offer.
transceiver->internal()->set_mline_index(i);
}
}
} else {
RTC_CHECK_EQ(cricket::MEDIA_TYPE_DATA, media_type);
@ -5057,7 +5130,7 @@ void PeerConnection::GetOptionsForUnifiedPlanOffer(
// otherwise append to the end of the offer. New media sections should be
// added in the order they were added to the PeerConnection.
for (const auto& transceiver : transceivers_) {
if (transceiver->mid() || transceiver->stopped()) {
if (transceiver->mid() || transceiver->stopping()) {
continue;
}
size_t mline_index;
@ -5065,13 +5138,13 @@ void PeerConnection::GetOptionsForUnifiedPlanOffer(
mline_index = recycleable_mline_indices.front();
recycleable_mline_indices.pop();
session_options->media_description_options[mline_index] =
GetMediaDescriptionOptionsForTransceiver(transceiver,
mid_generator_());
GetMediaDescriptionOptionsForTransceiver(
transceiver, mid_generator_(), /*is_create_offer=*/true);
} else {
mline_index = session_options->media_description_options.size();
session_options->media_description_options.push_back(
GetMediaDescriptionOptionsForTransceiver(transceiver,
mid_generator_()));
GetMediaDescriptionOptionsForTransceiver(
transceiver, mid_generator_(), /*is_create_offer=*/true));
}
// See comment above for why CreateOffer changes the transceiver's state.
transceiver->internal()->set_mline_index(mline_index);
@ -5182,7 +5255,8 @@ void PeerConnection::GetOptionsForUnifiedPlanAnswer(
auto transceiver = GetAssociatedTransceiver(content.name);
RTC_CHECK(transceiver);
session_options->media_description_options.push_back(
GetMediaDescriptionOptionsForTransceiver(transceiver, content.name));
GetMediaDescriptionOptionsForTransceiver(transceiver, content.name,
/*is_create_offer=*/false));
} else {
RTC_CHECK_EQ(cricket::MEDIA_TYPE_DATA, media_type);
// Reject all data sections if data channels are disabled.
@ -7273,7 +7347,8 @@ bool PeerConnection::CheckIfNegotiationIsNeeded() {
// 1. If any implementation-specific negotiation is required, as described at
// the start of this section, return true.
// 2. If connection's [[RestartIce]] internal slot is true, return true.
// 2. If connection.[[LocalIceCredentialsToReplace]] is not empty, return
// true.
if (local_ice_credentials_to_replace_->HasIceCredentials()) {
return true;
}
@ -7299,11 +7374,12 @@ bool PeerConnection::CheckIfNegotiationIsNeeded() {
const ContentInfo* current_remote_msection = FindTransceiverMSection(
transceiver.get(), current_remote_description());
// 5.3 If transceiver is stopped and is associated with an m= section,
// 5.4 If transceiver is stopped and is associated with an m= section,
// but the associated m= section is not yet rejected in
// connection.[[CurrentLocalDescription]] or
// connection.[[CurrentRemoteDescription]], return true.
if (transceiver->stopped()) {
RTC_DCHECK(transceiver->stopping());
if (current_local_msection && !current_local_msection->rejected &&
((current_remote_msection && !current_remote_msection->rejected) ||
!current_remote_msection)) {
@ -7312,17 +7388,22 @@ bool PeerConnection::CheckIfNegotiationIsNeeded() {
continue;
}
// 5.1 If transceiver isn't stopped and isn't yet associated with an m=
// 5.1 If transceiver.[[Stopping]] is true and transceiver.[[Stopped]] is
// false, return true.
if (transceiver->stopping() && !transceiver->stopped())
return true;
// 5.2 If transceiver isn't stopped and isn't yet associated with an m=
// section in description, return true.
if (!current_local_msection)
return true;
const MediaContentDescription* current_local_media_description =
current_local_msection->media_description();
// 5.2 If transceiver isn't stopped and is associated with an m= section
// 5.3 If transceiver isn't stopped and is associated with an m= section
// in description then perform the following checks:
// 5.2.1 If transceiver.[[Direction]] is "sendrecv" or "sendonly", and the
// 5.3.1 If transceiver.[[Direction]] is "sendrecv" or "sendonly", and the
// associated m= section in description either doesn't contain a single
// "a=msid" line, or the number of MSIDs from the "a=msid" lines in this
// m= section, or the MSID values themselves, differ from what is in
@ -7348,7 +7429,7 @@ bool PeerConnection::CheckIfNegotiationIsNeeded() {
return true;
}
// 5.2.2 If description is of type "offer", and the direction of the
// 5.3.2 If description is of type "offer", and the direction of the
// associated m= section in neither connection.[[CurrentLocalDescription]]
// nor connection.[[CurrentRemoteDescription]] matches
// transceiver.[[Direction]], return true.
@ -7370,7 +7451,7 @@ bool PeerConnection::CheckIfNegotiationIsNeeded() {
}
}
// 5.2.3 If description is of type "answer", and the direction of the
// 5.3.3 If description is of type "answer", and the direction of the
// associated m= section in the description does not match
// transceiver.[[Direction]] intersected with the offered direction (as
// described in [JSEP] (section 5.3.1.)), return true.

2
pc/peer_connection_bundle_unittest.cc
View File

@ -873,7 +873,7 @@ TEST_F(PeerConnectionBundleTestUnifiedPlan,
// Stop all transceivers, causing all m= sections to be rejected.
for (const auto& transceiver : callee->pc()->GetTransceivers()) {
transceiver->Stop();
transceiver->StopInternal();
}
EXPECT_TRUE(
caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));

112
pc/peer_connection_integrationtest.cc
View File

@ -799,9 +799,7 @@ class PeerConnectionWrapper : public webrtc::PeerConnectionObserver,
EXPECT_TRUE(desc->ToString(&sdp));
RTC_LOG(LS_INFO) << debug_name_ << ": local SDP contents=\n" << sdp;
pc()->SetLocalDescription(observer, desc.release());
if (sdp_semantics_ == SdpSemantics::kUnifiedPlan) {
RemoveUnusedVideoRenderers();
}
RemoveUnusedVideoRenderers();
// As mentioned above, we need to send the message immediately after
// SetLocalDescription.
SendSdpMessage(type, sdp);
@ -814,9 +812,7 @@ class PeerConnectionWrapper : public webrtc::PeerConnectionObserver,
new rtc::RefCountedObject<MockSetSessionDescriptionObserver>());
RTC_LOG(LS_INFO) << debug_name_ << ": SetRemoteDescription";
pc()->SetRemoteDescription(observer, desc.release());
if (sdp_semantics_ == SdpSemantics::kUnifiedPlan) {
RemoveUnusedVideoRenderers();
}
RemoveUnusedVideoRenderers();
EXPECT_TRUE_WAIT(observer->called(), kDefaultTimeout);
return observer->result();
}
@ -824,29 +820,26 @@ class PeerConnectionWrapper : public webrtc::PeerConnectionObserver,
// This is a work around to remove unused fake_video_renderers from
// transceivers that have either stopped or are no longer receiving.
void RemoveUnusedVideoRenderers() {
if (sdp_semantics_ != SdpSemantics::kUnifiedPlan) {
return;
}
auto transceivers = pc()->GetTransceivers();
std::set<std::string> active_renderers;
for (auto& transceiver : transceivers) {
if (transceiver->receiver()->media_type() != cricket::MEDIA_TYPE_VIDEO) {
continue;
// Note - we don't check for direction here. This function is called
// before direction is set, and in that case, we should not remove
// the renderer.
if (transceiver->receiver()->media_type() == cricket::MEDIA_TYPE_VIDEO) {
active_renderers.insert(transceiver->receiver()->track()->id());
}
// Remove fake video renderers from any stopped transceivers.
if (transceiver->stopped()) {
auto it =
fake_video_renderers_.find(transceiver->receiver()->track()->id());
if (it != fake_video_renderers_.end()) {
fake_video_renderers_.erase(it);
}
}
// Remove fake video renderers from any transceivers that are no longer
// receiving.
if ((transceiver->current_direction() &&
!webrtc::RtpTransceiverDirectionHasRecv(
*transceiver->current_direction()))) {
auto it =
fake_video_renderers_.find(transceiver->receiver()->track()->id());
if (it != fake_video_renderers_.end()) {
fake_video_renderers_.erase(it);
}
}
for (auto it = fake_video_renderers_.begin();
it != fake_video_renderers_.end();) {
// Remove fake video renderers belonging to any non-active transceivers.
if (!active_renderers.count(it->first)) {
it = fake_video_renderers_.erase(it);
} else {
it++;
}
}
}
@ -936,8 +929,11 @@ class PeerConnectionWrapper : public webrtc::PeerConnectionObserver,
rtc::scoped_refptr<RtpReceiverInterface> receiver) override {
if (receiver->media_type() == cricket::MEDIA_TYPE_VIDEO) {
auto it = fake_video_renderers_.find(receiver->track()->id());
RTC_DCHECK(it != fake_video_renderers_.end());
fake_video_renderers_.erase(it);
if (it != fake_video_renderers_.end()) {
fake_video_renderers_.erase(it);
} else {
RTC_LOG(LS_ERROR) << "OnRemoveTrack called for non-active renderer";
}
}
}
void OnRenegotiationNeeded() override {}
@ -1561,6 +1557,9 @@ class PeerConnectionIntegrationBaseTest : public ::testing::Test {
// |media_expectations|. Returns false if any of the expectations were
// not met.
bool ExpectNewFrames(const MediaExpectations& media_expectations) {
// Make sure there are no bogus tracks confusing the issue.
caller()->RemoveUnusedVideoRenderers();
callee()->RemoveUnusedVideoRenderers();
// First initialize the expected frame counts based upon the current
// frame count.
int total_caller_audio_frames_expected = caller()->audio_frames_received();
@ -2237,7 +2236,9 @@ TEST_P(PeerConnectionIntegrationTest, AudioToVideoUpgrade) {
callee()->SetOfferAnswerOptions(options);
} else {
callee()->SetRemoteOfferHandler([this] {
callee()->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)->Stop();
callee()
->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)
->StopInternal();
});
}
// Do offer/answer and make sure audio is still received end-to-end.
@ -2269,11 +2270,12 @@ TEST_P(PeerConnectionIntegrationTest, AudioToVideoUpgrade) {
// The caller creates a new transceiver to receive video on when receiving
// the offer, but by default it is send only.
auto transceivers = caller()->pc()->GetTransceivers();
ASSERT_EQ(3U, transceivers.size());
ASSERT_EQ(2U, transceivers.size());
ASSERT_EQ(cricket::MEDIA_TYPE_VIDEO,
transceivers[2]->receiver()->media_type());
transceivers[2]->sender()->SetTrack(caller()->CreateLocalVideoTrack());
transceivers[2]->SetDirection(RtpTransceiverDirection::kSendRecv);
transceivers[1]->receiver()->media_type());
transceivers[1]->sender()->SetTrack(caller()->CreateLocalVideoTrack());
transceivers[1]->SetDirectionWithError(
RtpTransceiverDirection::kSendRecv);
});
}
callee()->CreateAndSetAndSignalOffer();
@ -2485,7 +2487,9 @@ TEST_P(PeerConnectionIntegrationTest, AnswererRejectsAudioSection) {
// Stopping the audio RtpTransceiver will cause the media section to be
// rejected in the answer.
callee()->SetRemoteOfferHandler([this] {
callee()->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_AUDIO)->Stop();
callee()
->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_AUDIO)
->StopInternal();
});
}
callee()->AddTrack(callee()->CreateLocalVideoTrack());
@ -2504,10 +2508,10 @@ TEST_P(PeerConnectionIntegrationTest, AnswererRejectsAudioSection) {
ASSERT_NE(nullptr, callee_audio_content);
EXPECT_TRUE(callee_audio_content->rejected);
if (sdp_semantics_ == SdpSemantics::kUnifiedPlan) {
// The caller's transceiver should have stopped after receiving the answer.
EXPECT_TRUE(caller()
->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_AUDIO)
->stopped());
// The caller's transceiver should have stopped after receiving the answer,
// and thus no longer listed in transceivers.
EXPECT_EQ(nullptr,
caller()->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_AUDIO));
}
}
@ -2527,7 +2531,9 @@ TEST_P(PeerConnectionIntegrationTest, AnswererRejectsVideoSection) {
// Stopping the video RtpTransceiver will cause the media section to be
// rejected in the answer.
callee()->SetRemoteOfferHandler([this] {
callee()->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)->Stop();
callee()
->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)
->StopInternal();
});
}
callee()->AddTrack(callee()->CreateLocalAudioTrack());
@ -2546,10 +2552,10 @@ TEST_P(PeerConnectionIntegrationTest, AnswererRejectsVideoSection) {
ASSERT_NE(nullptr, callee_video_content);
EXPECT_TRUE(callee_video_content->rejected);
if (sdp_semantics_ == SdpSemantics::kUnifiedPlan) {
// The caller's transceiver should have stopped after receiving the answer.
EXPECT_TRUE(caller()
->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)
->stopped());
// The caller's transceiver should have stopped after receiving the answer,
// and thus is no longer present.
EXPECT_EQ(nullptr,
caller()->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO));
}
}
@ -2573,7 +2579,7 @@ TEST_P(PeerConnectionIntegrationTest, AnswererRejectsAudioAndVideoSections) {
callee()->SetRemoteOfferHandler([this] {
// Stopping all transceivers will cause all media sections to be rejected.
for (const auto& transceiver : callee()->pc()->GetTransceivers()) {
transceiver->Stop();
transceiver->StopInternal();
}
});
}
@ -2620,7 +2626,9 @@ TEST_P(PeerConnectionIntegrationTest, VideoRejectedInSubsequentOffer) {
}
});
} else {
caller()->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)->Stop();
caller()
->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)
->StopInternal();
}
caller()->CreateAndSetAndSignalOffer();
ASSERT_TRUE_WAIT(SignalingStateStable(), kMaxWaitForActivationMs);
@ -2735,7 +2743,7 @@ TEST_F(PeerConnectionIntegrationTestUnifiedPlan,
ASSERT_TRUE_WAIT(SignalingStateStable(), kDefaultTimeout);
// Add receive direction.
video_sender->SetDirection(RtpTransceiverDirection::kSendRecv);
video_sender->SetDirectionWithError(RtpTransceiverDirection::kSendRecv);
rtc::scoped_refptr<webrtc::VideoTrackInterface> callee_track =
callee()->CreateLocalVideoTrack();
@ -4345,7 +4353,9 @@ TEST_P(PeerConnectionIntegrationTest,
callee()->SetOfferAnswerOptions(options);
} else {
callee()->SetRemoteOfferHandler([this] {
callee()->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)->Stop();
callee()
->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO)
->StopInternal();
});
}
caller()->CreateAndSetAndSignalOffer();
@ -4366,7 +4376,7 @@ TEST_P(PeerConnectionIntegrationTest,
// The caller's transceiver is stopped, so we need to add another track.
auto caller_transceiver =
caller()->GetFirstTransceiverOfType(cricket::MEDIA_TYPE_VIDEO);
EXPECT_TRUE(caller_transceiver->stopped());
EXPECT_EQ(nullptr, caller_transceiver.get());
caller()->AddVideoTrack();
}
callee()->AddVideoTrack();
@ -4429,9 +4439,9 @@ TEST_F(PeerConnectionIntegrationTestUnifiedPlan,
auto caller_video_sender = video_result.MoveValue()->sender();
callee()->SetRemoteOfferHandler([this] {
ASSERT_EQ(2u, callee()->pc()->GetTransceivers().size());
callee()->pc()->GetTransceivers()[0]->SetDirection(
callee()->pc()->GetTransceivers()[0]->SetDirectionWithError(
RtpTransceiverDirection::kSendRecv);
callee()->pc()->GetTransceivers()[1]->SetDirection(
callee()->pc()->GetTransceivers()[1]->SetDirectionWithError(
RtpTransceiverDirection::kSendRecv);
});
caller()->CreateAndSetAndSignalOffer();
@ -5552,7 +5562,7 @@ TEST_F(PeerConnectionIntegrationTestUnifiedPlan,
ASSERT_TRUE(ExpectNewFrames(media_expectations));
}
audio_transceiver->Stop();
audio_transceiver->StopInternal();
caller()->pc()->AddTransceiver(caller()->CreateLocalVideoTrack());
caller()->CreateAndSetAndSignalOffer();

27
pc/peer_connection_interface_unittest.cc
View File

@ -2668,23 +2668,24 @@ TEST_P(PeerConnectionInterfaceTest, CloseAndTestStreamsAndStates) {
EXPECT_EQ(1u, pc_->local_streams()->count());
EXPECT_EQ(1u, pc_->remote_streams()->count());
} else {
// Verify that the RtpTransceivers are still present but all stopped.
EXPECT_EQ(2u, pc_->GetTransceivers().size());
for (const auto& transceiver : pc_->GetTransceivers()) {
EXPECT_TRUE(transceiver->stopped());
}
// Verify that the RtpTransceivers are no longer returned.
EXPECT_EQ(0u, pc_->GetTransceivers().size());
}
auto audio_receiver = GetFirstReceiverOfType(cricket::MEDIA_TYPE_AUDIO);
ASSERT_TRUE(audio_receiver);
auto video_receiver = GetFirstReceiverOfType(cricket::MEDIA_TYPE_VIDEO);
ASSERT_TRUE(video_receiver);
// Track state may be updated asynchronously.
EXPECT_EQ_WAIT(MediaStreamTrackInterface::kEnded,
audio_receiver->track()->state(), kTimeout);
EXPECT_EQ_WAIT(MediaStreamTrackInterface::kEnded,
video_receiver->track()->state(), kTimeout);
if (sdp_semantics_ == SdpSemantics::kPlanB) {
ASSERT_TRUE(audio_receiver);
ASSERT_TRUE(video_receiver);
// Track state may be updated asynchronously.
EXPECT_EQ_WAIT(MediaStreamTrackInterface::kEnded,
audio_receiver->track()->state(), kTimeout);
EXPECT_EQ_WAIT(MediaStreamTrackInterface::kEnded,
video_receiver->track()->state(), kTimeout);
} else {
ASSERT_FALSE(audio_receiver);
ASSERT_FALSE(video_receiver);
}
}
// Test that PeerConnection methods fails gracefully after

134
pc/peer_connection_jsep_unittest.cc
View File

@ -212,7 +212,7 @@ TEST_F(PeerConnectionJsepTest,
StoppedTransceiverHasNoMediaSectionInInitialOffer) {
auto caller = CreatePeerConnection();
auto transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
transceiver->Stop();
transceiver->StopInternal();
auto offer = caller->CreateOffer();
EXPECT_EQ(0u, offer->description()->contents().size());
@ -300,7 +300,7 @@ TEST_F(PeerConnectionJsepTest,
auto caller = CreatePeerConnection();
caller->AddAudioTrack("a");
auto caller_audio = caller->pc()->GetTransceivers()[0];
caller_audio->SetDirection(RtpTransceiverDirection::kSendOnly);
caller_audio->SetDirectionWithError(RtpTransceiverDirection::kSendOnly);
auto callee = CreatePeerConnection();
callee->AddAudioTrack("a");
@ -358,16 +358,14 @@ TEST_F(PeerConnectionJsepTest, SetRemoteOfferDoesNotReuseStoppedTransceiver) {
caller->AddAudioTrack("a");
auto callee = CreatePeerConnection();
callee->AddAudioTrack("a");
callee->pc()->GetTransceivers()[0]->Stop();
callee->pc()->GetTransceivers()[0]->StopInternal();
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
auto transceivers = callee->pc()->GetTransceivers();
ASSERT_EQ(2u, transceivers.size());
EXPECT_EQ(absl::nullopt, transceivers[0]->mid());
EXPECT_TRUE(transceivers[0]->stopped());
EXPECT_EQ(caller->pc()->GetTransceivers()[0]->mid(), transceivers[1]->mid());
EXPECT_FALSE(transceivers[1]->stopped());
ASSERT_EQ(1u, transceivers.size());
EXPECT_EQ(caller->pc()->GetTransceivers()[0]->mid(), transceivers[0]->mid());
EXPECT_FALSE(transceivers[0]->stopped());
}
// Test that audio and video transceivers created on the remote side with
@ -432,7 +430,7 @@ TEST_F(PeerConnectionJsepTest, CreateAnswerRejectsStoppedTransceiver) {
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
callee->pc()->GetTransceivers()[0]->Stop();
callee->pc()->GetTransceivers()[0]->StopInternal();
auto answer = callee->CreateAnswer();
auto contents = answer->description()->contents();
@ -469,7 +467,7 @@ TEST_F(PeerConnectionJsepTest, CreateAnswerNegotiatesDirection) {
TEST_F(PeerConnectionJsepTest, SetLocalAnswerUpdatesCurrentDirection) {
auto caller = CreatePeerConnection();
auto caller_audio = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
caller_audio->SetDirection(RtpTransceiverDirection::kRecvOnly);
caller_audio->SetDirectionWithError(RtpTransceiverDirection::kRecvOnly);
auto callee = CreatePeerConnection();
callee->AddAudioTrack("a");
@ -494,7 +492,7 @@ TEST_F(PeerConnectionJsepTest, SetRemoteAnswerUpdatesCurrentDirection) {
auto callee = CreatePeerConnection();
callee->AddAudioTrack("a");
auto callee_audio = callee->pc()->GetTransceivers()[0];
callee_audio->SetDirection(RtpTransceiverDirection::kSendOnly);
callee_audio->SetDirectionWithError(RtpTransceiverDirection::kSendOnly);
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
ASSERT_TRUE(
@ -518,7 +516,7 @@ TEST_F(PeerConnectionJsepTest, SettingTransceiverInactiveDoesNotStopIt) {
caller->AddAudioTrack("a");
auto callee = CreatePeerConnection();
callee->AddAudioTrack("a");
callee->pc()->GetTransceivers()[0]->SetDirection(
callee->pc()->GetTransceivers()[0]->SetDirectionWithError(
RtpTransceiverDirection::kInactive);
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
@ -543,7 +541,7 @@ TEST_F(PeerConnectionJsepTest,
caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));
ASSERT_TRUE(transceiver->mid());
transceiver->Stop();
transceiver->StopInternal();
auto reoffer = caller->CreateOffer();
auto contents = reoffer->description()->contents();
@ -564,13 +562,12 @@ TEST_F(PeerConnectionJsepTest,
ASSERT_TRUE(
caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));
transceiver->Stop();
transceiver->StopInternal();
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
auto transceivers = callee->pc()->GetTransceivers();
EXPECT_TRUE(transceivers[0]->stopped());
EXPECT_TRUE(transceivers[0]->mid());
EXPECT_EQ(0u, transceivers.size());
}
// Test that CreateOffer will only generate a recycled media section if the
@ -586,7 +583,7 @@ TEST_F(PeerConnectionJsepTest,
caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));
auto second_transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
first_transceiver->Stop();
first_transceiver->StopInternal();
auto reoffer = caller->CreateOffer();
auto contents = reoffer->description()->contents();
@ -605,14 +602,17 @@ TEST_F(PeerConnectionJsepTest,
auto callee = CreatePeerConnection();
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
callee->pc()->GetTransceivers()[0]->Stop();
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
callee->pc()->GetTransceivers()[0]->StopInternal();
ASSERT_EQ(0u, callee->pc()->GetTransceivers().size());
ASSERT_TRUE(
caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));
EXPECT_TRUE(first_transceiver->stopped());
// First transceivers aren't dissociated yet.
// First transceivers aren't dissociated yet on caller side.
ASSERT_NE(absl::nullopt, first_transceiver->mid());
std::string first_mid = *first_transceiver->mid();
EXPECT_EQ(first_mid, callee->pc()->GetTransceivers()[0]->mid());
// They are disassociated on callee side.
ASSERT_EQ(0u, callee->pc()->GetTransceivers().size());
// New offer exchange with new transceivers that recycles the m section
// correctly.
@ -630,10 +630,11 @@ TEST_F(PeerConnectionJsepTest,
ASSERT_TRUE(
caller->SetLocalDescription(CloneSessionDescription(offer.get())));
EXPECT_EQ(absl::nullopt, first_transceiver->mid());
EXPECT_EQ(second_mid, caller->pc()->GetTransceivers()[1]->mid());
ASSERT_EQ(1u, caller->pc()->GetTransceivers().size());
EXPECT_EQ(second_mid, caller->pc()->GetTransceivers()[0]->mid());
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
EXPECT_EQ(absl::nullopt, callee->pc()->GetTransceivers()[0]->mid());
EXPECT_EQ(second_mid, callee->pc()->GetTransceivers()[1]->mid());
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
EXPECT_EQ(second_mid, callee->pc()->GetTransceivers()[0]->mid());
// The new answer should also recycle the m section correctly.
auto answer = callee->CreateAnswer();
@ -647,13 +648,11 @@ TEST_F(PeerConnectionJsepTest,
callee->SetLocalDescription(CloneSessionDescription(answer.get())));
ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer)));
auto caller_transceivers = caller->pc()->GetTransceivers();
ASSERT_EQ(2u, caller_transceivers.size());
EXPECT_EQ(absl::nullopt, caller_transceivers[0]->mid());
EXPECT_EQ(second_mid, caller_transceivers[1]->mid());
ASSERT_EQ(1u, caller_transceivers.size());
EXPECT_EQ(second_mid, caller_transceivers[0]->mid());
auto callee_transceivers = callee->pc()->GetTransceivers();
ASSERT_EQ(2u, callee_transceivers.size());
EXPECT_EQ(absl::nullopt, callee_transceivers[0]->mid());
EXPECT_EQ(second_mid, callee_transceivers[1]->mid());
ASSERT_EQ(1u, callee_transceivers.size());
EXPECT_EQ(second_mid, callee_transceivers[0]->mid());
}
// Test that creating/setting a local offer that recycles an m= section is
@ -664,7 +663,7 @@ TEST_F(PeerConnectionJsepTest, CreateOfferRecyclesWhenOfferingTwice) {
auto first_transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
auto callee = CreatePeerConnection();
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
first_transceiver->Stop();
first_transceiver->StopInternal();
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
caller->AddAudioTrack("audio2");
@ -675,7 +674,8 @@ TEST_F(PeerConnectionJsepTest, CreateOfferRecyclesWhenOfferingTwice) {
ASSERT_EQ(1u, offer_contents.size());
EXPECT_FALSE(offer_contents[0].rejected);
ASSERT_TRUE(caller->SetLocalDescription(std::move(offer)));
EXPECT_FALSE(caller->pc()->GetTransceivers()[1]->stopped());
ASSERT_EQ(1u, caller->pc()->GetTransceivers().size());
EXPECT_FALSE(caller->pc()->GetTransceivers()[0]->stopped());
std::string second_mid = offer_contents[0].name;
// Create another new offer and set the local description again without the
@ -690,10 +690,9 @@ TEST_F(PeerConnectionJsepTest, CreateOfferRecyclesWhenOfferingTwice) {
ASSERT_TRUE(caller->SetLocalDescription(std::move(second_offer)));
// Make sure that the caller's transceivers are associated correctly.
auto caller_transceivers = caller->pc()->GetTransceivers();
ASSERT_EQ(2u, caller_transceivers.size());
EXPECT_EQ(absl::nullopt, caller_transceivers[0]->mid());
EXPECT_EQ(second_mid, caller_transceivers[1]->mid());
EXPECT_FALSE(caller_transceivers[1]->stopped());
ASSERT_EQ(1u, caller_transceivers.size());
EXPECT_EQ(second_mid, caller_transceivers[0]->mid());
EXPECT_FALSE(caller_transceivers[0]->stopped());
}
// Test that the offer/answer and transceivers for both the caller and callee
@ -729,7 +728,7 @@ TEST_P(RecycleMediaSectionTest, CurrentLocalAndCurrentRemoteRejected) {
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
std::string first_mid = *first_transceiver->mid();
first_transceiver->Stop();
first_transceiver->StopInternal();
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
@ -756,11 +755,9 @@ TEST_P(RecycleMediaSectionTest, CurrentLocalAndCurrentRemoteRejected) {
// create a new transceiver for the media section.
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
auto callee_transceivers = callee->pc()->GetTransceivers();
ASSERT_EQ(2u, callee_transceivers.size());
EXPECT_EQ(absl::nullopt, callee_transceivers[0]->mid());
EXPECT_EQ(first_type_, callee_transceivers[0]->media_type());
EXPECT_EQ(second_mid, callee_transceivers[1]->mid());
EXPECT_EQ(second_type_, callee_transceivers[1]->media_type());
ASSERT_EQ(1u, callee_transceivers.size());
EXPECT_EQ(second_mid, callee_transceivers[0]->mid());
EXPECT_EQ(second_type_, callee_transceivers[0]->media_type());
// The answer should have only one media section for the new transceiver.
auto answer = callee->CreateAnswer();
@ -777,8 +774,8 @@ TEST_P(RecycleMediaSectionTest, CurrentLocalAndCurrentRemoteRejected) {
// Setting the remote answer should succeed and not create any new
// transceivers.
ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer)));
ASSERT_EQ(2u, caller->pc()->GetTransceivers().size());
ASSERT_EQ(2u, callee->pc()->GetTransceivers().size());
ASSERT_EQ(1u, caller->pc()->GetTransceivers().size());
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
}
// Test that recycling works properly when a new transceiver recycles an m=
@ -793,7 +790,7 @@ TEST_P(RecycleMediaSectionTest, CurrentRemoteOnlyRejected) {
std::string first_mid = *caller_first_transceiver->mid();
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
auto callee_first_transceiver = callee->pc()->GetTransceivers()[0];
callee_first_transceiver->Stop();
callee_first_transceiver->StopInternal();
// The answer will have a rejected m= section.
ASSERT_TRUE(
@ -821,11 +818,9 @@ TEST_P(RecycleMediaSectionTest, CurrentRemoteOnlyRejected) {
// create a new transceiver for the media section.
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
auto callee_transceivers = callee->pc()->GetTransceivers();
ASSERT_EQ(2u, callee_transceivers.size());
EXPECT_EQ(absl::nullopt, callee_transceivers[0]->mid());
EXPECT_EQ(first_type_, callee_transceivers[0]->media_type());
EXPECT_EQ(second_mid, callee_transceivers[1]->mid());
EXPECT_EQ(second_type_, callee_transceivers[1]->media_type());
ASSERT_EQ(1u, callee_transceivers.size());
EXPECT_EQ(second_mid, callee_transceivers[0]->mid());
EXPECT_EQ(second_type_, callee_transceivers[0]->media_type());
// The answer should have only one media section for the new transceiver.
auto answer = callee->CreateAnswer();
@ -842,8 +837,8 @@ TEST_P(RecycleMediaSectionTest, CurrentRemoteOnlyRejected) {
// Setting the remote answer should succeed and not create any new
// transceivers.
ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer)));
ASSERT_EQ(2u, caller->pc()->GetTransceivers().size());
ASSERT_EQ(2u, callee->pc()->GetTransceivers().size());
ASSERT_EQ(1u, caller->pc()->GetTransceivers().size());
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
}
// Test that recycling works properly when a new transceiver recycles an m=
@ -858,7 +853,7 @@ TEST_P(RecycleMediaSectionTest, CurrentLocalOnlyRejected) {
std::string first_mid = *caller_first_transceiver->mid();
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
auto callee_first_transceiver = callee->pc()->GetTransceivers()[0];
callee_first_transceiver->Stop();
callee_first_transceiver->StopInternal();
// The answer will have a rejected m= section.
ASSERT_TRUE(
@ -886,11 +881,9 @@ TEST_P(RecycleMediaSectionTest, CurrentLocalOnlyRejected) {
// create a new transceiver for the media section.
ASSERT_TRUE(caller->SetRemoteDescription(std::move(offer)));
auto caller_transceivers = caller->pc()->GetTransceivers();
ASSERT_EQ(2u, caller_transceivers.size());
EXPECT_EQ(absl::nullopt, caller_transceivers[0]->mid());
EXPECT_EQ(first_type_, caller_transceivers[0]->media_type());
EXPECT_EQ(second_mid, caller_transceivers[1]->mid());
EXPECT_EQ(second_type_, caller_transceivers[1]->media_type());
ASSERT_EQ(1u, caller_transceivers.size());
EXPECT_EQ(second_mid, caller_transceivers[0]->mid());
EXPECT_EQ(second_type_, caller_transceivers[0]->media_type());
// The answer should have only one media section for the new transceiver.
auto answer = caller->CreateAnswer();
@ -907,8 +900,8 @@ TEST_P(RecycleMediaSectionTest, CurrentLocalOnlyRejected) {
// Setting the remote answer should succeed and not create any new
// transceivers.
ASSERT_TRUE(callee->SetRemoteDescription(std::move(answer)));
ASSERT_EQ(2u, callee->pc()->GetTransceivers().size());
ASSERT_EQ(2u, caller->pc()->GetTransceivers().size());
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
ASSERT_EQ(1u, caller->pc()->GetTransceivers().size());
}
// Test that a m= section is *not* recycled if the media section is only
@ -921,7 +914,7 @@ TEST_P(RecycleMediaSectionTest, PendingLocalRejectedAndNoRemote) {
ASSERT_TRUE(caller->SetLocalDescription(caller->CreateOffer()));
std::string first_mid = *caller_first_transceiver->mid();
caller_first_transceiver->Stop();
caller_first_transceiver->StopInternal();
// The reoffer will have a rejected m= section.
ASSERT_TRUE(caller->SetLocalDescription(caller->CreateOffer()));
@ -959,7 +952,7 @@ TEST_P(RecycleMediaSectionTest, PendingLocalRejectedAndNotRejectedRemote) {
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
std::string first_mid = *caller_first_transceiver->mid();
caller_first_transceiver->Stop();
caller_first_transceiver->StopInternal();
// The reoffer will have a rejected m= section.
ASSERT_TRUE(caller->SetLocalDescription(caller->CreateOffer()));
@ -999,7 +992,7 @@ TEST_P(RecycleMediaSectionTest, PendingRemoteRejectedAndNoLocal) {
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
auto callee_first_transceiver = callee->pc()->GetTransceivers()[0];
std::string first_mid = *callee_first_transceiver->mid();
caller_first_transceiver->Stop();
caller_first_transceiver->StopInternal();
// The reoffer will have a rejected m= section.
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
@ -1036,7 +1029,7 @@ TEST_P(RecycleMediaSectionTest, PendingRemoteRejectedAndNotRejectedLocal) {
ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());
auto callee_first_transceiver = callee->pc()->GetTransceivers()[0];
std::string first_mid = *callee_first_transceiver->mid();
caller_first_transceiver->Stop();
caller_first_transceiver->StopInternal();
// The reoffer will have a rejected m= section.
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
@ -1080,7 +1073,7 @@ TEST_F(PeerConnectionJsepTest, DataChannelDoesNotRecycleMediaSection) {
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
transceiver->Stop();
transceiver->StopInternal();
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
@ -1367,7 +1360,7 @@ TEST_F(PeerConnectionJsepTest, IncludeMsidEvenIfDirectionHasChanged) {
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
caller->pc()->GetTransceivers()[0]->SetDirection(
caller->pc()->GetTransceivers()[0]->SetDirectionWithError(
RtpTransceiverDirection::kInactive);
// The transceiver direction on both sides will turn to inactive.
@ -1395,7 +1388,7 @@ TEST_F(PeerConnectionJsepTest, RemoveMsidIfTransceiverStopped) {
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
transceiver->Stop();
transceiver->StopInternal();
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
@ -1552,8 +1545,9 @@ TEST_F(PeerConnectionJsepTest, CurrentDirectionResetWhenRtpTransceiverStopped) {
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
ASSERT_TRUE(transceiver->current_direction());
transceiver->Stop();
EXPECT_FALSE(transceiver->current_direction());
transceiver->StopInternal();
EXPECT_EQ(transceiver->current_direction(),
RtpTransceiverDirection::kStopped);
}
// Test that you can't set an answer on a PeerConnection before setting the
@ -2039,7 +2033,7 @@ TEST_F(PeerConnectionJsepTest, RollbackLocalDirectionChange) {
EXPECT_TRUE(
caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));
callee->AddAudioTrack("a");
callee->pc()->GetTransceivers()[0]->SetDirection(
callee->pc()->GetTransceivers()[0]->SetDirectionWithError(
RtpTransceiverDirection::kSendOnly);
EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());
EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);
@ -2063,7 +2057,7 @@ TEST_F(PeerConnectionJsepTest, RollbackRemoteDirectionChange) {
EXPECT_TRUE(
caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));
// In stable make remote audio receive only.
caller_transceiver->SetDirection(RtpTransceiverDirection::kRecvOnly);
caller_transceiver->SetDirectionWithError(RtpTransceiverDirection::kRecvOnly);
EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);
// The direction attribute is not modified by the offer.

8
pc/peer_connection_media_unittest.cc
View File

@ -290,8 +290,8 @@ TEST_F(PeerConnectionMediaTestUnifiedPlan,
// Stop both audio and video transceivers on the caller.
auto transceivers = caller->pc()->GetTransceivers();
ASSERT_EQ(2u, transceivers.size());
transceivers[0]->Stop();
transceivers[1]->Stop();
transceivers[0]->StopInternal();
transceivers[1]->StopInternal();
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
@ -388,8 +388,8 @@ TEST_F(PeerConnectionMediaTestUnifiedPlan,
// Stop both audio and video transceivers on the callee.
auto transceivers = callee->pc()->GetTransceivers();
ASSERT_EQ(2u, transceivers.size());
transceivers[0]->Stop();
transceivers[1]->Stop();
transceivers[0]->StopInternal();
transceivers[1]->StopInternal();
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));

94
pc/peer_connection_rtp_unittest.cc
View File

@ -370,19 +370,25 @@ TEST_F(PeerConnectionRtpTestUnifiedPlan, SetDirectionCallsOnTrack) {
auto callee = CreatePeerConnection();
auto transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
transceiver->SetDirection(RtpTransceiverDirection::kInactive);
EXPECT_TRUE(
transceiver->SetDirectionWithError(RtpTransceiverDirection::kInactive)
.ok());
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
EXPECT_EQ(0u, caller->observer()->on_track_transceivers_.size());
EXPECT_EQ(0u, callee->observer()->on_track_transceivers_.size());
transceiver->SetDirection(RtpTransceiverDirection::kSendOnly);
EXPECT_TRUE(
transceiver->SetDirectionWithError(RtpTransceiverDirection::kSendOnly)
.ok());
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
EXPECT_EQ(0u, caller->observer()->on_track_transceivers_.size());
EXPECT_EQ(1u, callee->observer()->on_track_transceivers_.size());
// If the direction changes but it is still receiving on the remote side, then
// OnTrack should not be fired again.
transceiver->SetDirection(RtpTransceiverDirection::kSendRecv);
EXPECT_TRUE(
transceiver->SetDirectionWithError(RtpTransceiverDirection::kSendRecv)
.ok());
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
EXPECT_EQ(0u, caller->observer()->on_track_transceivers_.size());
EXPECT_EQ(1u, callee->observer()->on_track_transceivers_.size());
@ -401,8 +407,10 @@ TEST_F(PeerConnectionRtpTestUnifiedPlan, SetDirectionHoldCallsOnTrackTwice) {
EXPECT_EQ(1u, callee->observer()->on_track_transceivers_.size());
// Put the call on hold by no longer receiving the track.
callee->pc()->GetTransceivers()[0]->SetDirection(
RtpTransceiverDirection::kInactive);
EXPECT_TRUE(callee->pc()
->GetTransceivers()[0]
->SetDirectionWithError(RtpTransceiverDirection::kInactive)
.ok());
ASSERT_TRUE(callee->ExchangeOfferAnswerWith(caller.get()));
EXPECT_EQ(0u, caller->observer()->on_track_transceivers_.size());
@ -410,8 +418,10 @@ TEST_F(PeerConnectionRtpTestUnifiedPlan, SetDirectionHoldCallsOnTrackTwice) {
// Resume the call by changing the direction to recvonly. This should call
// OnTrack again on the callee side.
callee->pc()->GetTransceivers()[0]->SetDirection(
RtpTransceiverDirection::kRecvOnly);
EXPECT_TRUE(callee->pc()
->GetTransceivers()[0]
->SetDirectionWithError(RtpTransceiverDirection::kRecvOnly)
.ok());
ASSERT_TRUE(callee->ExchangeOfferAnswerWith(caller.get()));
EXPECT_EQ(0u, caller->observer()->on_track_transceivers_.size());
@ -470,7 +480,9 @@ TEST_F(PeerConnectionRtpTestUnifiedPlan,
EXPECT_EQ(0u, callee->observer()->remove_track_events_.size());
auto callee_transceiver = callee->pc()->GetTransceivers()[0];
callee_transceiver->SetDirection(RtpTransceiverDirection::kSendOnly);
EXPECT_TRUE(callee_transceiver
->SetDirectionWithError(RtpTransceiverDirection::kSendOnly)
.ok());
ASSERT_TRUE(callee->SetLocalDescription(callee->CreateAnswer()));
EXPECT_EQ(1u, callee->observer()->add_track_events_.size());
@ -1409,7 +1421,7 @@ TEST_F(PeerConnectionRtpTestUnifiedPlan,
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
caller->observer()->clear_negotiation_needed();
transceiver->SetDirection(RtpTransceiverDirection::kInactive);
transceiver->SetDirectionWithError(RtpTransceiverDirection::kInactive);
EXPECT_TRUE(caller->observer()->negotiation_needed());
}
@ -1422,7 +1434,7 @@ TEST_F(PeerConnectionRtpTestUnifiedPlan,
auto transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
caller->observer()->clear_negotiation_needed();
transceiver->SetDirection(transceiver->direction());
transceiver->SetDirectionWithError(transceiver->direction());
EXPECT_FALSE(caller->observer()->negotiation_needed());
}
@ -1433,13 +1445,71 @@ TEST_F(PeerConnectionRtpTestUnifiedPlan,
auto caller = CreatePeerConnection();
auto transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
transceiver->Stop();
transceiver->StopInternal();
caller->observer()->clear_negotiation_needed();
transceiver->SetDirection(RtpTransceiverDirection::kInactive);
transceiver->SetDirectionWithError(RtpTransceiverDirection::kInactive);
EXPECT_FALSE(caller->observer()->negotiation_needed());
}
// Test that currentDirection returnes "stopped" if the transceiver was stopped.
TEST_F(PeerConnectionRtpTestUnifiedPlan,
CheckStoppedCurrentDirectionOnStoppedTransceiver) {
auto caller = CreatePeerConnection();
auto transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
transceiver->StopInternal();
EXPECT_TRUE(transceiver->stopping());
EXPECT_TRUE(transceiver->stopped());
EXPECT_EQ(RtpTransceiverDirection::kStopped,
transceiver->current_direction());
}
// Test that InvalidState is thrown on a stopping transceiver.
TEST_F(PeerConnectionRtpTestUnifiedPlan,
CheckForInvalidStateOnStoppingTransceiver) {
auto caller = CreatePeerConnection();
auto transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
transceiver->StopStandard();
EXPECT_TRUE(transceiver->stopping());
EXPECT_FALSE(transceiver->stopped());
EXPECT_EQ(
RTCErrorType::INVALID_STATE,
transceiver->SetDirectionWithError(RtpTransceiverDirection::kInactive)
.type());
}
// Test that InvalidState is thrown on a stopped transceiver.
TEST_F(PeerConnectionRtpTestUnifiedPlan,
CheckForInvalidStateOnStoppedTransceiver) {
auto caller = CreatePeerConnection();
auto transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
transceiver->StopInternal();
EXPECT_TRUE(transceiver->stopping());
EXPECT_TRUE(transceiver->stopped());
EXPECT_EQ(
RTCErrorType::INVALID_STATE,
transceiver->SetDirectionWithError(RtpTransceiverDirection::kInactive)
.type());
}
// Test that TypeError is thrown if the direction is set to "stopped".
TEST_F(PeerConnectionRtpTestUnifiedPlan,
CheckForTypeErrorForStoppedOnTransceiver) {
auto caller = CreatePeerConnection();
auto transceiver = caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
EXPECT_EQ(
RTCErrorType::INVALID_PARAMETER,
transceiver->SetDirectionWithError(RtpTransceiverDirection::kStopped)
.type());
}
// Test that AddTransceiver fails if trying to use unimplemented RTP encoding
// parameters with the send_encodings parameters.
TEST_F(PeerConnectionRtpTestUnifiedPlan,

6
pc/peer_connection_simulcast_unittest.cc
View File

@ -455,7 +455,7 @@ TEST_F(PeerConnectionSimulcastTests, ServerSendsOfferToReceiveSimulcast) {
std::string error;
EXPECT_TRUE(remote->SetRemoteDescription(std::move(offer), &error)) << error;
auto transceiver = remote->pc()->GetTransceivers()[0];
transceiver->SetDirection(RtpTransceiverDirection::kSendRecv);
transceiver->SetDirectionWithError(RtpTransceiverDirection::kSendRecv);
EXPECT_TRUE(remote->CreateAnswerAndSetAsLocal());
ValidateTransceiverParameters(transceiver, layers);
}
@ -478,7 +478,7 @@ TEST_F(PeerConnectionSimulcastTests, TransceiverIsNotRecycledWithSimulcast) {
auto transceivers = remote->pc()->GetTransceivers();
ASSERT_EQ(2u, transceivers.size());
auto transceiver = transceivers[1];
transceiver->SetDirection(RtpTransceiverDirection::kSendRecv);
transceiver->SetDirectionWithError(RtpTransceiverDirection::kSendRecv);
EXPECT_TRUE(remote->CreateAnswerAndSetAsLocal());
ValidateTransceiverParameters(transceiver, layers);
}
@ -611,7 +611,7 @@ TEST_F(PeerConnectionSimulcastMetricsTests, IncomingSimulcastIsLogged) {
ElementsAre(Pair(kSimulcastApiVersionSpecCompliant, 1)));
auto transceiver = remote->pc()->GetTransceivers()[0];
transceiver->SetDirection(RtpTransceiverDirection::kSendRecv);
transceiver->SetDirectionWithError(RtpTransceiverDirection::kSendRecv);
EXPECT_TRUE(remote->CreateAnswerAndSetAsLocal());
EXPECT_THAT(LocalDescriptionSamples(),
ElementsAre(Pair(kSimulcastApiVersionSpecCompliant, 2)));

1
pc/rtp_media_utils.cc
View File

@ -42,6 +42,7 @@ RtpTransceiverDirection RtpTransceiverDirectionReversed(
switch (direction) {
case RtpTransceiverDirection::kSendRecv:
case RtpTransceiverDirection::kInactive:
case RtpTransceiverDirection::kStopped:
return direction;
case RtpTransceiverDirection::kSendOnly:
return RtpTransceiverDirection::kRecvOnly;

9
pc/rtp_sender.cc
View File

@ -184,6 +184,15 @@ RTCError RtpSenderBase::SetParametersInternal(const RtpParameters& parameters) {
RTCError RtpSenderBase::SetParameters(const RtpParameters& parameters) {
TRACE_EVENT0("webrtc", "RtpSenderBase::SetParameters");
if (is_transceiver_stopped_) {
LOG_AND_RETURN_ERROR(
RTCErrorType::INVALID_STATE,
"Cannot set parameters on sender of a stopped transceiver.");
}
if (stopped_) {
LOG_AND_RETURN_ERROR(RTCErrorType::INVALID_STATE,
"Cannot set parameters on a stopped sender.");
}
if (stopped_) {
LOG_AND_RETURN_ERROR(RTCErrorType::INVALID_STATE,
"Cannot set parameters on a stopped sender.");

5
pc/rtp_sender.h
View File

@ -69,6 +69,8 @@ class RtpSenderInternal : public RtpSenderInterface {
// If the specified list is empty, this is a no-op.
virtual RTCError DisableEncodingLayers(
const std::vector<std::string>& rid) = 0;
virtual void SetTransceiverAsStopped() = 0;
};
// Shared implementation for RtpSenderInternal interface.
@ -152,6 +154,8 @@ class RtpSenderBase : public RtpSenderInternal, public ObserverInterface {
void SetEncoderToPacketizerFrameTransformer(
rtc::scoped_refptr<FrameTransformerInterface> frame_transformer) override;
void SetTransceiverAsStopped() override { is_transceiver_stopped_ = true; }
protected:
// If |set_streams_observer| is not null, it is invoked when SetStreams()
// is called. |set_streams_observer| is not owned by this object. If not
@ -180,6 +184,7 @@ class RtpSenderBase : public RtpSenderInternal, public ObserverInterface {
rtc::Thread* worker_thread_;
uint32_t ssrc_ = 0;
bool stopped_ = false;
bool is_transceiver_stopped_ = false;
int attachment_id_ = 0;
const std::string id_;

119
pc/rtp_transceiver.cc
View File

@ -97,10 +97,19 @@ RTCError VerifyCodecPreferences(const std::vector<RtpCodecCapability>& codecs,
return RTCError::OK();
}
TaskQueueBase* GetCurrentTaskQueueOrThread() {
TaskQueueBase* current = TaskQueueBase::Current();
if (!current)
current = rtc::ThreadManager::Instance()->CurrentThread();
return current;
}
} // namespace
RtpTransceiver::RtpTransceiver(cricket::MediaType media_type)
: unified_plan_(false), media_type_(media_type) {
: thread_(GetCurrentTaskQueueOrThread()),
unified_plan_(false),
media_type_(media_type) {
RTC_DCHECK(media_type == cricket::MEDIA_TYPE_AUDIO ||
media_type == cricket::MEDIA_TYPE_VIDEO);
}
@ -111,7 +120,8 @@ RtpTransceiver::RtpTransceiver(
receiver,
cricket::ChannelManager* channel_manager,
std::vector<RtpHeaderExtensionCapability> header_extensions_offered)
: unified_plan_(true),
: thread_(GetCurrentTaskQueueOrThread()),
unified_plan_(true),
media_type_(sender->media_type()),
channel_manager_(channel_manager),
header_extensions_to_offer_(std::move(header_extensions_offered)) {
@ -123,7 +133,7 @@ RtpTransceiver::RtpTransceiver(
}
RtpTransceiver::~RtpTransceiver() {
Stop();
StopInternal();
}
void RtpTransceiver::SetChannel(cricket::ChannelInterface* channel) {
@ -277,23 +287,51 @@ bool RtpTransceiver::stopped() const {
return stopped_;
}
bool RtpTransceiver::stopping() const {
RTC_DCHECK_RUN_ON(thread_);
return stopping_;
}
RtpTransceiverDirection RtpTransceiver::direction() const {
if (unified_plan_ && stopping())
return webrtc::RtpTransceiverDirection::kStopped;
return direction_;
}
void RtpTransceiver::SetDirection(RtpTransceiverDirection new_direction) {
if (stopped()) {
return;
// Catch internal usage of SetDirection without error.
// We cannot deprecate this function while it is being proxied, so
// settle for causing a runtime error instead.
RTC_NOTREACHED();
SetDirectionWithError(new_direction);
}
RTCError RtpTransceiver::SetDirectionWithError(
RtpTransceiverDirection new_direction) {
if (unified_plan_ && stopping()) {
LOG_AND_RETURN_ERROR(RTCErrorType::INVALID_STATE,
"Cannot set direction on a stopping transceiver.");
}
if (new_direction == direction_) {
return;
if (new_direction == direction_)
return RTCError::OK();
if (new_direction == RtpTransceiverDirection::kStopped) {
LOG_AND_RETURN_ERROR(RTCErrorType::INVALID_PARAMETER,
"The set direction 'stopped' is invalid.");
}
direction_ = new_direction;
SignalNegotiationNeeded();
return RTCError::OK();
}
absl::optional<RtpTransceiverDirection> RtpTransceiver::current_direction()
const {
if (unified_plan_ && stopping())
return webrtc::RtpTransceiverDirection::kStopped;
return current_direction_;
}
@ -302,14 +340,69 @@ absl::optional<RtpTransceiverDirection> RtpTransceiver::fired_direction()
return fired_direction_;
}
void RtpTransceiver::Stop() {
for (const auto& sender : senders_) {
void RtpTransceiver::StopSendingAndReceiving() {
// 1. Let sender be transceiver.[[Sender]].
// 2. Let receiver be transceiver.[[Receiver]].
//
// 3. Stop sending media with sender.
//
// 4. Send an RTCP BYE for each RTP stream that was being sent by sender, as
// specified in [RFC3550].
RTC_DCHECK_RUN_ON(thread_);
for (const auto& sender : senders_)
sender->internal()->Stop();
}
for (const auto& receiver : receivers_) {
// 5. Stop receiving media with receiver.
for (const auto& receiver : receivers_)
receiver->internal()->Stop();
stopping_ = true;
direction_ = webrtc::RtpTransceiverDirection::kInactive;
}
RTCError RtpTransceiver::StopStandard() {
RTC_DCHECK_RUN_ON(thread_);
RTC_DCHECK(unified_plan_);
// 1. Let transceiver be the RTCRtpTransceiver object on which the method is
// invoked.
//
// 2. Let connection be the RTCPeerConnection object associated with
// transceiver.
//
// 3. If connection.[[IsClosed]] is true, throw an InvalidStateError.
if (is_pc_closed_) {
LOG_AND_RETURN_ERROR(RTCErrorType::INVALID_STATE,
"PeerConnection is closed.");
}
// 4. If transceiver.[[Stopping]] is true, abort these steps.
if (stopping_)
return RTCError::OK();
// 5. Stop sending and receiving given transceiver, and update the
// negotiation-needed flag for connection.
StopSendingAndReceiving();
SignalNegotiationNeeded();
return RTCError::OK();
}
void RtpTransceiver::StopInternal() {
RTC_DCHECK_RUN_ON(thread_);
// 1. If transceiver.[[Stopping]] is false, stop sending and receiving given
// transceiver.
if (!stopping_)
StopSendingAndReceiving();
// 2. Set transceiver.[[Stopped]] to true.
stopped_ = true;
// Signal the updated change to the senders.
for (const auto& sender : senders_)
sender->internal()->SetTransceiverAsStopped();
// 3. Set transceiver.[[Receptive]] to false.
// 4. Set transceiver.[[CurrentDirection]] to null.
current_direction_ = absl::nullopt;
}
@ -403,4 +496,8 @@ RTCError RtpTransceiver::SetOfferedRtpHeaderExtensions(
return RTCError::OK();
}
void RtpTransceiver::SetPeerConnectionClosed() {
is_pc_closed_ = true;
}
} // namespace webrtc

20
pc/rtp_transceiver.h
View File

@ -173,6 +173,10 @@ class RtpTransceiver final
return has_ever_been_used_to_send_;
}
// Informs the transceiver that its owning
// PeerConnection is closed.
void SetPeerConnectionClosed();
// Fired when the RtpTransceiver state changes such that negotiation is now
// needed (e.g., in response to a direction change).
sigslot::signal0<> SignalNegotiationNeeded;
@ -183,11 +187,15 @@ class RtpTransceiver final
rtc::scoped_refptr<RtpSenderInterface> sender() const override;
rtc::scoped_refptr<RtpReceiverInterface> receiver() const override;
bool stopped() const override;
bool stopping() const override;
RtpTransceiverDirection direction() const override;
void SetDirection(RtpTransceiverDirection new_direction) override;
RTCError SetDirectionWithError(
RtpTransceiverDirection new_direction) override;
absl::optional<RtpTransceiverDirection> current_direction() const override;
absl::optional<RtpTransceiverDirection> fired_direction() const override;
void Stop() override;
RTCError StopStandard() override;
void StopInternal() override;
RTCError SetCodecPreferences(
rtc::ArrayView<RtpCodecCapability> codecs) override;
std::vector<RtpCodecCapability> codec_preferences() const override {
@ -201,7 +209,10 @@ class RtpTransceiver final
private:
void OnFirstPacketReceived(cricket::ChannelInterface* channel);
void StopSendingAndReceiving();
// Enforce that this object is created, used and destroyed on one thread.
const TaskQueueBase* thread_;
const bool unified_plan_;
const cricket::MediaType media_type_;
std::vector<rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>>>
@ -211,6 +222,8 @@ class RtpTransceiver final
receivers_;
bool stopped_ = false;
bool stopping_ RTC_GUARDED_BY(thread_) = false;
bool is_pc_closed_ = false;
RtpTransceiverDirection direction_ = RtpTransceiverDirection::kInactive;
absl::optional<RtpTransceiverDirection> current_direction_;
absl::optional<RtpTransceiverDirection> fired_direction_;
@ -233,11 +246,14 @@ PROXY_CONSTMETHOD0(absl::optional<std::string>, mid)
PROXY_CONSTMETHOD0(rtc::scoped_refptr<RtpSenderInterface>, sender)
PROXY_CONSTMETHOD0(rtc::scoped_refptr<RtpReceiverInterface>, receiver)
PROXY_CONSTMETHOD0(bool, stopped)
PROXY_CONSTMETHOD0(bool, stopping)
PROXY_CONSTMETHOD0(RtpTransceiverDirection, direction)
PROXY_METHOD1(void, SetDirection, RtpTransceiverDirection)
PROXY_METHOD1(webrtc::RTCError, SetDirectionWithError, RtpTransceiverDirection)
PROXY_CONSTMETHOD0(absl::optional<RtpTransceiverDirection>, current_direction)
PROXY_CONSTMETHOD0(absl::optional<RtpTransceiverDirection>, fired_direction)
PROXY_METHOD0(void, Stop)
PROXY_METHOD0(webrtc::RTCError, StopStandard)
PROXY_METHOD0(void, StopInternal)
PROXY_METHOD1(webrtc::RTCError,
SetCodecPreferences,
rtc::ArrayView<RtpCodecCapability>)

4
pc/rtp_transceiver_unittest.cc
View File

@ -45,7 +45,7 @@ TEST(RtpTransceiverTest, CannotSetChannelOnStoppedTransceiver) {
EXPECT_EQ(&channel1, transceiver.channel());
// Stop the transceiver.
transceiver.Stop();
transceiver.StopInternal();
EXPECT_EQ(&channel1, transceiver.channel());
cricket::MockChannelInterface channel2;
@ -71,7 +71,7 @@ TEST(RtpTransceiverTest, CanUnsetChannelOnStoppedTransceiver) {
EXPECT_EQ(&channel, transceiver.channel());
// Stop the transceiver.
transceiver.Stop();
transceiver.StopInternal();
EXPECT_EQ(&channel, transceiver.channel());
// Set the channel to |nullptr|.

28
pc/test/mock_rtp_sender_internal.h
View File

@ -65,23 +65,17 @@ class MockRtpSenderInternal : public RtpSenderInternal {
(const, override));
// RtpSenderInternal methods.
MOCK_METHOD(void, SetMediaChannel, (cricket::MediaChannel*), (override));
MOCK_METHOD(void, SetSsrc, (uint32_t), (override));
MOCK_METHOD(void,
set_stream_ids,
(const std::vector<std::string>&),
(override));
MOCK_METHOD(void, SetStreams, (const std::vector<std::string>&), (override));
MOCK_METHOD(void,
set_init_send_encodings,
(const std::vector<RtpEncodingParameters>&),
(override));
MOCK_METHOD(void, Stop, (), (override));
MOCK_METHOD(int, AttachmentId, (), (const, override));
MOCK_METHOD(RTCError,
DisableEncodingLayers,
(const std::vector<std::string>&),
(override));
MOCK_METHOD1(SetMediaChannel, void(cricket::MediaChannel*));
MOCK_METHOD1(SetSsrc, void(uint32_t));
MOCK_METHOD1(set_stream_ids, void(const std::vector<std::string>&));
MOCK_METHOD1(SetStreams, void(const std::vector<std::string>&));
MOCK_METHOD1(set_init_send_encodings,
void(const std::vector<RtpEncodingParameters>&));
MOCK_METHOD0(Stop, void());
MOCK_CONST_METHOD0(AttachmentId, int());
MOCK_METHOD1(DisableEncodingLayers,
RTCError(const std::vector<std::string>&));
MOCK_METHOD0(SetTransceiverAsStopped, void());
};
} // namespace webrtc

4
pc/webrtc_sdp.cc
View File

@ -1568,6 +1568,8 @@ void BuildRtpContentAttributes(const MediaContentDescription* media_desc,
// RFC 3264
// a=sendrecv || a=sendonly || a=sendrecv || a=inactive
switch (media_desc->direction()) {
// Special case that for sdp purposes should be treated same as inactive.
case RtpTransceiverDirection::kStopped:
case RtpTransceiverDirection::kInactive:
InitAttrLine(kAttributeInactive, &os);
break;
@ -1580,9 +1582,7 @@ void BuildRtpContentAttributes(const MediaContentDescription* media_desc,
case RtpTransceiverDirection::kSendRecv:
InitAttrLine(kAttributeSendRecv, &os);
break;
case RtpTransceiverDirection::kStopped:
default:
// kStopped shouldn't be used in signalling.
RTC_NOTREACHED();
InitAttrLine(kAttributeSendRecv, &os);
break;

32
sdk/android/api/org/webrtc/RtpTransceiver.java
View File

@ -206,13 +206,34 @@ public class RtpTransceiver {
}
/**
* The Stop method irreversibly stops the RtpTransceiver. The sender of this
* transceiver will no longer send, the receiver will no longer receive.
* https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-stop
* The Stop method will for the time being call the StopInternal method.
* After a migration procedure, stop() will be equivalent to StopStandard.
*/
public void stop() {
checkRtpTransceiverExists();
nativeStop(nativeRtpTransceiver);
nativeStopInternal(nativeRtpTransceiver);
}
/**
* The StopInternal method stops the RtpTransceiver, like Stop, but goes
* immediately to Stopped state.
*/
public void stopInternal() {
checkRtpTransceiverExists();
nativeStopInternal(nativeRtpTransceiver);
}
/**
* The StopStandard method irreversibly stops the RtpTransceiver. The sender
* of this transceiver will no longer send, the receiver will no longer
* receive.
*
* <p>The transceiver will enter Stopping state and signal NegotiationNeeded.
* https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-stop
*/
public void stopStandard() {
checkRtpTransceiverExists();
nativeStopStandard(nativeRtpTransceiver);
}
@CalledByNative
@ -237,7 +258,8 @@ public class RtpTransceiver {
private static native boolean nativeStopped(long rtpTransceiver);
private static native RtpTransceiverDirection nativeDirection(long rtpTransceiver);
private static native RtpTransceiverDirection nativeCurrentDirection(long rtpTransceiver);
private static native void nativeStop(long rtpTransceiver);
private static native void nativeStopInternal(long rtpTransceiver);
private static native void nativeStopStandard(long rtpTransceiver);
private static native void nativeSetDirection(
long rtpTransceiver, RtpTransceiverDirection rtpTransceiverDirection);
}

13
sdk/android/src/jni/pc/rtp_transceiver.cc
View File

@ -139,9 +139,16 @@ ScopedJavaLocalRef<jobject> JNI_RtpTransceiver_CurrentDirection(
: nullptr;
}
void JNI_RtpTransceiver_Stop(JNIEnv* jni,
jlong j_rtp_transceiver_pointer) {
reinterpret_cast<RtpTransceiverInterface*>(j_rtp_transceiver_pointer)->Stop();
void JNI_RtpTransceiver_StopInternal(JNIEnv* jni,
jlong j_rtp_transceiver_pointer) {
reinterpret_cast<RtpTransceiverInterface*>(j_rtp_transceiver_pointer)
->StopInternal();
}
void JNI_RtpTransceiver_StopStandard(JNIEnv* jni,
jlong j_rtp_transceiver_pointer) {
reinterpret_cast<RtpTransceiverInterface*>(j_rtp_transceiver_pointer)
->StopStandard();
}
void JNI_RtpTransceiver_SetDirection(

2
sdk/objc/api/peerconnection/RTCRtpTransceiver.h
View File

@ -117,7 +117,7 @@ RTC_OBJC_EXPORT
* this transceiver will no longer send, the receiver will no longer receive.
* https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-stop
*/
- (void)stop;
- (void)stopInternal;
@end

4
sdk/objc/api/peerconnection/RTCRtpTransceiver.mm
View File

@ -90,8 +90,8 @@
}
}
- (void)stop {
_nativeRtpTransceiver->Stop();
- (void)stopInternal {
_nativeRtpTransceiver->StopInternal();
}
- (NSString *)description {