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in RTPSender disallow enabling misconfigured rtx

Browse Source 
Bug: None
Change-Id: Id94771626ef723212e4d92d9093af3ec9e647990
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/251780
Auto-Submit: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36020}
This commit is contained in:
Danil Chapovalov
2022-02-15 17:28:07 +01:00
committed by WebRTC LUCI CQ
parent 419344264c
commit 27d5f14cf2
2 changed files with 43 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
modules/rtp_rtcp/source/rtp_sender.cc
View File

@ -258,6 +258,12 @@ size_t RTPSender::MaxRtpPacketSize() const {
void RTPSender::SetRtxStatus(int mode) {
MutexLock lock(&send_mutex_);
if (mode != kRtxOff &&
(!rtx_ssrc_.has_value() || rtx_payload_type_map_.empty())) {
RTC_LOG(LS_ERROR)
<< "Failed to enable RTX without RTX SSRC or payload types.";
return;
}
rtx_ = mode;
}
@ -453,6 +459,7 @@ std::vector<std::unique_ptr<RtpPacketToSend>> RTPSender::GeneratePadding(
}
RTC_DCHECK(rtx_ssrc_);
RTC_DCHECK(!rtx_payload_type_map_.empty());
padding_packet->SetSsrc(*rtx_ssrc_);
padding_packet->SetPayloadType(rtx_payload_type_map_.begin()->second);
}

38
modules/rtp_rtcp/source/rtp_sender_unittest.cc
View File

@ -443,6 +443,39 @@ TEST_F(RtpSenderTest, NoPaddingAsFirstPacketWithoutBweExtensions) {
IsEmpty());
}
TEST_F(RtpSenderTest, RequiresRtxSsrcToEnableRtx) {
RtpRtcpInterface::Configuration config = GetDefaultConfig();
config.rtx_send_ssrc = absl::nullopt;
RTPSender rtp_sender(config, packet_history_.get(), config.paced_sender);
rtp_sender.SetRtxPayloadType(kRtxPayload, kPayload);
rtp_sender.SetRtxStatus(kRtxRetransmitted);
EXPECT_EQ(rtp_sender.RtxStatus(), kRtxOff);
}
TEST_F(RtpSenderTest, RequiresRtxPayloadTypesToEnableRtx) {
RtpRtcpInterface::Configuration config = GetDefaultConfig();
config.rtx_send_ssrc = kRtxSsrc;
RTPSender rtp_sender(config, packet_history_.get(), config.paced_sender);
rtp_sender.SetRtxStatus(kRtxRetransmitted);
EXPECT_EQ(rtp_sender.RtxStatus(), kRtxOff);
}
TEST_F(RtpSenderTest, CanEnableRtxWhenRtxSsrcAndPayloadTypeAreConfigured) {
RtpRtcpInterface::Configuration config = GetDefaultConfig();
config.rtx_send_ssrc = kRtxSsrc;
RTPSender rtp_sender(config, packet_history_.get(), config.paced_sender);
rtp_sender.SetRtxPayloadType(kRtxPayload, kPayload);
ASSERT_EQ(rtp_sender.RtxStatus(), kRtxOff);
rtp_sender.SetRtxStatus(kRtxRetransmitted);
EXPECT_EQ(rtp_sender.RtxStatus(), kRtxRetransmitted);
}
TEST_F(RtpSenderTest, AllowPaddingAsFirstPacketOnRtxWithTransportCc) {
ASSERT_TRUE(rtp_sender_->RegisterRtpHeaderExtension(
TransportSequenceNumber::Uri(), kTransportSequenceNumberExtensionId));
@ -1049,8 +1082,8 @@ TEST_F(RtpSenderTest, GeneratePaddingResendsOldPacketsWithRtx) {
// Min requested size in order to use RTX payload.
const size_t kMinPaddingSize = 50;
rtp_sender_->SetRtxStatus(kRtxRetransmitted | kRtxRedundantPayloads);
rtp_sender_->SetRtxPayloadType(kRtxPayload, kPayload);
rtp_sender_->SetRtxStatus(kRtxRetransmitted | kRtxRedundantPayloads);
packet_history_->SetStorePacketsStatus(
RtpPacketHistory::StorageMode::kStoreAndCull, 1);
@ -1099,8 +1132,8 @@ TEST_F(RtpSenderTest, LimitsPayloadPaddingSize) {
const double kFactor = 2.0;
field_trials_.SetMaxPaddingFactor(kFactor);
SetUpRtpSender(false, false, nullptr);
rtp_sender_->SetRtxStatus(kRtxRetransmitted | kRtxRedundantPayloads);
rtp_sender_->SetRtxPayloadType(kRtxPayload, kPayload);
rtp_sender_->SetRtxStatus(kRtxRetransmitted | kRtxRedundantPayloads);
packet_history_->SetStorePacketsStatus(
RtpPacketHistory::StorageMode::kStoreAndCull, 1);
@ -1201,6 +1234,7 @@ TEST_F(RtpSenderTest, SupportsPadding) {
if (redundant_payloads) {
rtx_mode |= kRtxRedundantPayloads;
}
rtp_sender_->SetRtxPayloadType(kRtxPayload, kPayload);
rtp_sender_->SetRtxStatus(rtx_mode);
for (auto extension_uri : kBweExtensionUris) {