| /* |
| * Copyright (c) 2019 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 <string> |
| #include <vector> |
| |
| #include "api/video/video_codec_constants.h" |
| #include "api/video/video_timing.h" |
| #include "modules/rtp_rtcp/include/rtp_cvo.h" |
| #include "modules/rtp_rtcp/include/rtp_header_extension_map.h" |
| #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h" |
| #include "modules/rtp_rtcp/source/rtp_format_video_generic.h" |
| #include "modules/rtp_rtcp/source/rtp_generic_frame_descriptor.h" |
| #include "modules/rtp_rtcp/source/rtp_generic_frame_descriptor_extension.h" |
| #include "modules/rtp_rtcp/source/rtp_header_extensions.h" |
| #include "modules/rtp_rtcp/source/rtp_packet_received.h" |
| #include "modules/rtp_rtcp/source/rtp_sender.h" |
| #include "modules/rtp_rtcp/source/rtp_sender_video.h" |
| #include "rtc_base/arraysize.h" |
| #include "rtc_base/rate_limiter.h" |
| #include "test/gmock.h" |
| #include "test/gtest.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| using ::testing::ElementsAre; |
| |
| enum : int { // The first valid value is 1. |
| kAbsoluteSendTimeExtensionId = 1, |
| kFrameMarkingExtensionId, |
| kGenericDescriptorId00, |
| kGenericDescriptorId01, |
| kTransmissionTimeOffsetExtensionId, |
| kTransportSequenceNumberExtensionId, |
| kVideoRotationExtensionId, |
| kVideoTimingExtensionId, |
| }; |
| |
| constexpr int kPayload = 100; |
| constexpr uint32_t kTimestamp = 10; |
| constexpr uint16_t kSeqNum = 33; |
| constexpr uint32_t kSsrc = 725242; |
| constexpr int kMaxPacketLength = 1500; |
| constexpr uint64_t kStartTime = 123456789; |
| constexpr int64_t kDefaultExpectedRetransmissionTimeMs = 125; |
| |
| class LoopbackTransportTest : public webrtc::Transport { |
| public: |
| LoopbackTransportTest() { |
| receivers_extensions_.Register(kRtpExtensionTransmissionTimeOffset, |
| kTransmissionTimeOffsetExtensionId); |
| receivers_extensions_.Register(kRtpExtensionAbsoluteSendTime, |
| kAbsoluteSendTimeExtensionId); |
| receivers_extensions_.Register(kRtpExtensionTransportSequenceNumber, |
| kTransportSequenceNumberExtensionId); |
| receivers_extensions_.Register(kRtpExtensionVideoRotation, |
| kVideoRotationExtensionId); |
| receivers_extensions_.Register(kRtpExtensionVideoTiming, |
| kVideoTimingExtensionId); |
| receivers_extensions_.Register(kRtpExtensionGenericFrameDescriptor00, |
| kGenericDescriptorId00); |
| receivers_extensions_.Register(kRtpExtensionGenericFrameDescriptor01, |
| kGenericDescriptorId01); |
| receivers_extensions_.Register(kRtpExtensionFrameMarking, |
| kFrameMarkingExtensionId); |
| } |
| |
| bool SendRtp(const uint8_t* data, |
| size_t len, |
| const PacketOptions& options) override { |
| sent_packets_.push_back(RtpPacketReceived(&receivers_extensions_)); |
| EXPECT_TRUE(sent_packets_.back().Parse(data, len)); |
| return true; |
| } |
| bool SendRtcp(const uint8_t* data, size_t len) override { return false; } |
| const RtpPacketReceived& last_sent_packet() { return sent_packets_.back(); } |
| int packets_sent() { return sent_packets_.size(); } |
| |
| private: |
| RtpHeaderExtensionMap receivers_extensions_; |
| std::vector<RtpPacketReceived> sent_packets_; |
| }; |
| |
| } // namespace |
| |
| class TestRtpSenderVideo : public RTPSenderVideo { |
| public: |
| TestRtpSenderVideo(Clock* clock, |
| RTPSender* rtp_sender, |
| FlexfecSender* flexfec_sender, |
| const WebRtcKeyValueConfig& field_trials) |
| : RTPSenderVideo(clock, |
| rtp_sender, |
| flexfec_sender, |
| &playout_delay_oracle_, |
| nullptr, |
| false, |
| field_trials) {} |
| ~TestRtpSenderVideo() override {} |
| |
| StorageType GetStorageType(const RTPVideoHeader& header, |
| int32_t retransmission_settings, |
| int64_t expected_retransmission_time_ms) { |
| return RTPSenderVideo::GetStorageType(GetTemporalId(header), |
| retransmission_settings, |
| expected_retransmission_time_ms); |
| } |
| PlayoutDelayOracle playout_delay_oracle_; |
| }; |
| |
| class FieldTrials : public WebRtcKeyValueConfig { |
| public: |
| explicit FieldTrials(bool use_send_side_bwe_with_overhead) |
| : use_send_side_bwe_with_overhead_(use_send_side_bwe_with_overhead) {} |
| |
| std::string Lookup(absl::string_view key) const override { |
| return key == "WebRTC-SendSideBwe-WithOverhead" && |
| use_send_side_bwe_with_overhead_ |
| ? "Enabled" |
| : ""; |
| } |
| |
| private: |
| bool use_send_side_bwe_with_overhead_; |
| }; |
| |
| class RtpSenderVideoTest : public ::testing::TestWithParam<bool> { |
| public: |
| RtpSenderVideoTest() |
| : field_trials_(GetParam()), |
| fake_clock_(kStartTime), |
| retransmission_rate_limiter_(&fake_clock_, 1000), |
| // TODO(pbos): Set up to use pacer. |
| rtp_sender_(false, |
| &fake_clock_, |
| &transport_, |
| nullptr, |
| absl::nullopt, |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| &retransmission_rate_limiter_, |
| nullptr, |
| false, |
| nullptr, |
| false, |
| false, |
| field_trials_), |
| rtp_sender_video_(&fake_clock_, &rtp_sender_, nullptr, field_trials_) { |
| rtp_sender_.SetSequenceNumber(kSeqNum); |
| rtp_sender_.SetTimestampOffset(0); |
| rtp_sender_.SetSSRC(kSsrc); |
| |
| rtp_sender_video_.RegisterPayloadType(kPayload, "generic"); |
| } |
| |
| void PopulateGenericFrameDescriptor(int version); |
| |
| void UsesMinimalVp8DescriptorWhenGenericFrameDescriptorExtensionIsUsed( |
| int version); |
| |
| protected: |
| FieldTrials field_trials_; |
| SimulatedClock fake_clock_; |
| LoopbackTransportTest transport_; |
| RateLimiter retransmission_rate_limiter_; |
| |
| RTPSender rtp_sender_; |
| TestRtpSenderVideo rtp_sender_video_; |
| }; |
| |
| TEST_P(RtpSenderVideoTest, KeyFrameHasCVO) { |
| uint8_t kFrame[kMaxPacketLength]; |
| EXPECT_EQ(0, rtp_sender_.RegisterRtpHeaderExtension( |
| kRtpExtensionVideoRotation, kVideoRotationExtensionId)); |
| |
| RTPVideoHeader hdr; |
| hdr.rotation = kVideoRotation_0; |
| rtp_sender_video_.SendVideo(VideoFrameType::kVideoFrameKey, kPayload, |
| kTimestamp, 0, kFrame, sizeof(kFrame), nullptr, |
| &hdr, kDefaultExpectedRetransmissionTimeMs); |
| |
| VideoRotation rotation; |
| EXPECT_TRUE( |
| transport_.last_sent_packet().GetExtension<VideoOrientation>(&rotation)); |
| EXPECT_EQ(kVideoRotation_0, rotation); |
| } |
| |
| TEST_P(RtpSenderVideoTest, TimingFrameHasPacketizationTimstampSet) { |
| uint8_t kFrame[kMaxPacketLength]; |
| const int64_t kPacketizationTimeMs = 100; |
| const int64_t kEncodeStartDeltaMs = 10; |
| const int64_t kEncodeFinishDeltaMs = 50; |
| EXPECT_EQ(0, rtp_sender_.RegisterRtpHeaderExtension(kRtpExtensionVideoTiming, |
| kVideoTimingExtensionId)); |
| |
| const int64_t kCaptureTimestamp = fake_clock_.TimeInMilliseconds(); |
| |
| RTPVideoHeader hdr; |
| hdr.video_timing.flags = VideoSendTiming::kTriggeredByTimer; |
| hdr.video_timing.encode_start_delta_ms = kEncodeStartDeltaMs; |
| hdr.video_timing.encode_finish_delta_ms = kEncodeFinishDeltaMs; |
| |
| fake_clock_.AdvanceTimeMilliseconds(kPacketizationTimeMs); |
| rtp_sender_video_.SendVideo(VideoFrameType::kVideoFrameKey, kPayload, |
| kTimestamp, kCaptureTimestamp, kFrame, |
| sizeof(kFrame), nullptr, &hdr, |
| kDefaultExpectedRetransmissionTimeMs); |
| VideoSendTiming timing; |
| EXPECT_TRUE(transport_.last_sent_packet().GetExtension<VideoTimingExtension>( |
| &timing)); |
| EXPECT_EQ(kPacketizationTimeMs, timing.packetization_finish_delta_ms); |
| EXPECT_EQ(kEncodeStartDeltaMs, timing.encode_start_delta_ms); |
| EXPECT_EQ(kEncodeFinishDeltaMs, timing.encode_finish_delta_ms); |
| } |
| |
| TEST_P(RtpSenderVideoTest, DeltaFrameHasCVOWhenChanged) { |
| uint8_t kFrame[kMaxPacketLength]; |
| EXPECT_EQ(0, rtp_sender_.RegisterRtpHeaderExtension( |
| kRtpExtensionVideoRotation, kVideoRotationExtensionId)); |
| |
| RTPVideoHeader hdr; |
| hdr.rotation = kVideoRotation_90; |
| EXPECT_TRUE(rtp_sender_video_.SendVideo( |
| VideoFrameType::kVideoFrameKey, kPayload, kTimestamp, 0, kFrame, |
| sizeof(kFrame), nullptr, &hdr, kDefaultExpectedRetransmissionTimeMs)); |
| |
| hdr.rotation = kVideoRotation_0; |
| EXPECT_TRUE(rtp_sender_video_.SendVideo( |
| VideoFrameType::kVideoFrameDelta, kPayload, kTimestamp + 1, 0, kFrame, |
| sizeof(kFrame), nullptr, &hdr, kDefaultExpectedRetransmissionTimeMs)); |
| |
| VideoRotation rotation; |
| EXPECT_TRUE( |
| transport_.last_sent_packet().GetExtension<VideoOrientation>(&rotation)); |
| EXPECT_EQ(kVideoRotation_0, rotation); |
| } |
| |
| TEST_P(RtpSenderVideoTest, DeltaFrameHasCVOWhenNonZero) { |
| uint8_t kFrame[kMaxPacketLength]; |
| EXPECT_EQ(0, rtp_sender_.RegisterRtpHeaderExtension( |
| kRtpExtensionVideoRotation, kVideoRotationExtensionId)); |
| |
| RTPVideoHeader hdr; |
| hdr.rotation = kVideoRotation_90; |
| EXPECT_TRUE(rtp_sender_video_.SendVideo( |
| VideoFrameType::kVideoFrameKey, kPayload, kTimestamp, 0, kFrame, |
| sizeof(kFrame), nullptr, &hdr, kDefaultExpectedRetransmissionTimeMs)); |
| |
| EXPECT_TRUE(rtp_sender_video_.SendVideo( |
| VideoFrameType::kVideoFrameDelta, kPayload, kTimestamp + 1, 0, kFrame, |
| sizeof(kFrame), nullptr, &hdr, kDefaultExpectedRetransmissionTimeMs)); |
| |
| VideoRotation rotation; |
| EXPECT_TRUE( |
| transport_.last_sent_packet().GetExtension<VideoOrientation>(&rotation)); |
| EXPECT_EQ(kVideoRotation_90, rotation); |
| } |
| |
| TEST_P(RtpSenderVideoTest, CheckH264FrameMarking) { |
| uint8_t kFrame[kMaxPacketLength]; |
| EXPECT_EQ(0, rtp_sender_.RegisterRtpHeaderExtension( |
| kRtpExtensionFrameMarking, kFrameMarkingExtensionId)); |
| |
| RTPFragmentationHeader frag; |
| frag.VerifyAndAllocateFragmentationHeader(1); |
| frag.fragmentationOffset[0] = 0; |
| frag.fragmentationLength[0] = sizeof(kFrame); |
| |
| RTPVideoHeader hdr; |
| hdr.video_type_header.emplace<RTPVideoHeaderH264>().packetization_mode = |
| H264PacketizationMode::NonInterleaved; |
| hdr.codec = kVideoCodecH264; |
| hdr.frame_marking.temporal_id = kNoTemporalIdx; |
| hdr.frame_marking.tl0_pic_idx = 99; |
| hdr.frame_marking.base_layer_sync = true; |
| rtp_sender_video_.SendVideo(VideoFrameType::kVideoFrameDelta, kPayload, |
| kTimestamp, 0, kFrame, sizeof(kFrame), &frag, |
| &hdr, kDefaultExpectedRetransmissionTimeMs); |
| |
| FrameMarking fm; |
| EXPECT_FALSE( |
| transport_.last_sent_packet().GetExtension<FrameMarkingExtension>(&fm)); |
| |
| hdr.frame_marking.temporal_id = 0; |
| rtp_sender_video_.SendVideo(VideoFrameType::kVideoFrameDelta, kPayload, |
| kTimestamp + 1, 0, kFrame, sizeof(kFrame), &frag, |
| &hdr, kDefaultExpectedRetransmissionTimeMs); |
| |
| EXPECT_TRUE( |
| transport_.last_sent_packet().GetExtension<FrameMarkingExtension>(&fm)); |
| EXPECT_EQ(hdr.frame_marking.temporal_id, fm.temporal_id); |
| EXPECT_EQ(hdr.frame_marking.tl0_pic_idx, fm.tl0_pic_idx); |
| EXPECT_EQ(hdr.frame_marking.base_layer_sync, fm.base_layer_sync); |
| } |
| |
| // Make sure rotation is parsed correctly when the Camera (C) and Flip (F) bits |
| // are set in the CVO byte. |
| TEST_P(RtpSenderVideoTest, SendVideoWithCameraAndFlipCVO) { |
| // Test extracting rotation when Camera (C) and Flip (F) bits are zero. |
| EXPECT_EQ(kVideoRotation_0, ConvertCVOByteToVideoRotation(0)); |
| EXPECT_EQ(kVideoRotation_90, ConvertCVOByteToVideoRotation(1)); |
| EXPECT_EQ(kVideoRotation_180, ConvertCVOByteToVideoRotation(2)); |
| EXPECT_EQ(kVideoRotation_270, ConvertCVOByteToVideoRotation(3)); |
| // Test extracting rotation when Camera (C) and Flip (F) bits are set. |
| const int flip_bit = 1 << 2; |
| const int camera_bit = 1 << 3; |
| EXPECT_EQ(kVideoRotation_0, |
| ConvertCVOByteToVideoRotation(flip_bit | camera_bit | 0)); |
| EXPECT_EQ(kVideoRotation_90, |
| ConvertCVOByteToVideoRotation(flip_bit | camera_bit | 1)); |
| EXPECT_EQ(kVideoRotation_180, |
| ConvertCVOByteToVideoRotation(flip_bit | camera_bit | 2)); |
| EXPECT_EQ(kVideoRotation_270, |
| ConvertCVOByteToVideoRotation(flip_bit | camera_bit | 3)); |
| } |
| |
| TEST_P(RtpSenderVideoTest, RetransmissionTypesGeneric) { |
| RTPVideoHeader header; |
| header.codec = kVideoCodecGeneric; |
| |
| EXPECT_EQ(kDontRetransmit, |
| rtp_sender_video_.GetStorageType( |
| header, kRetransmitOff, kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, rtp_sender_video_.GetStorageType( |
| header, kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, |
| rtp_sender_video_.GetStorageType( |
| header, kConditionallyRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| } |
| |
| TEST_P(RtpSenderVideoTest, RetransmissionTypesH264) { |
| RTPVideoHeader header; |
| header.video_type_header.emplace<RTPVideoHeaderH264>().packetization_mode = |
| H264PacketizationMode::NonInterleaved; |
| header.codec = kVideoCodecH264; |
| header.frame_marking.temporal_id = kNoTemporalIdx; |
| |
| EXPECT_EQ(kDontRetransmit, |
| rtp_sender_video_.GetStorageType( |
| header, kRetransmitOff, kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, rtp_sender_video_.GetStorageType( |
| header, kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, |
| rtp_sender_video_.GetStorageType( |
| header, kConditionallyRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| |
| // Test higher level retransmit. |
| for (int tid = 0; tid <= kMaxTemporalStreams; ++tid) { |
| header.frame_marking.temporal_id = tid; |
| EXPECT_EQ(kAllowRetransmission, |
| rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers | kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| } |
| } |
| |
| TEST_P(RtpSenderVideoTest, RetransmissionTypesVP8BaseLayer) { |
| RTPVideoHeader header; |
| header.codec = kVideoCodecVP8; |
| auto& vp8_header = header.video_type_header.emplace<RTPVideoHeaderVP8>(); |
| vp8_header.temporalIdx = 0; |
| |
| EXPECT_EQ(kDontRetransmit, |
| rtp_sender_video_.GetStorageType( |
| header, kRetransmitOff, kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, rtp_sender_video_.GetStorageType( |
| header, kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kDontRetransmit, rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, |
| rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers | kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kDontRetransmit, rtp_sender_video_.GetStorageType( |
| header, kConditionallyRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ( |
| kAllowRetransmission, |
| rtp_sender_video_.GetStorageType( |
| header, kRetransmitBaseLayer | kConditionallyRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| } |
| |
| TEST_P(RtpSenderVideoTest, RetransmissionTypesVP8HigherLayers) { |
| RTPVideoHeader header; |
| header.codec = kVideoCodecVP8; |
| |
| auto& vp8_header = header.video_type_header.emplace<RTPVideoHeaderVP8>(); |
| for (int tid = 1; tid <= kMaxTemporalStreams; ++tid) { |
| vp8_header.temporalIdx = tid; |
| |
| EXPECT_EQ(kDontRetransmit, rtp_sender_video_.GetStorageType( |
| header, kRetransmitOff, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kDontRetransmit, rtp_sender_video_.GetStorageType( |
| header, kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, |
| rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers | kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| } |
| } |
| |
| TEST_P(RtpSenderVideoTest, RetransmissionTypesVP9) { |
| RTPVideoHeader header; |
| header.codec = kVideoCodecVP9; |
| |
| auto& vp9_header = header.video_type_header.emplace<RTPVideoHeaderVP9>(); |
| for (int tid = 1; tid <= kMaxTemporalStreams; ++tid) { |
| vp9_header.temporal_idx = tid; |
| |
| EXPECT_EQ(kDontRetransmit, rtp_sender_video_.GetStorageType( |
| header, kRetransmitOff, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kDontRetransmit, rtp_sender_video_.GetStorageType( |
| header, kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers, |
| kDefaultExpectedRetransmissionTimeMs)); |
| EXPECT_EQ(kAllowRetransmission, |
| rtp_sender_video_.GetStorageType( |
| header, kRetransmitHigherLayers | kRetransmitBaseLayer, |
| kDefaultExpectedRetransmissionTimeMs)); |
| } |
| } |
| |
| TEST_P(RtpSenderVideoTest, ConditionalRetransmit) { |
| const int64_t kFrameIntervalMs = 33; |
| const int64_t kRttMs = (kFrameIntervalMs * 3) / 2; |
| const uint8_t kSettings = |
| kRetransmitBaseLayer | kConditionallyRetransmitHigherLayers; |
| |
| // Insert VP8 frames for all temporal layers, but stop before the final index. |
| RTPVideoHeader header; |
| header.codec = kVideoCodecVP8; |
| |
| // Fill averaging window to prevent rounding errors. |
| constexpr int kNumRepetitions = |
| (RTPSenderVideo::kTLRateWindowSizeMs + (kFrameIntervalMs / 2)) / |
| kFrameIntervalMs; |
| constexpr int kPattern[] = {0, 2, 1, 2}; |
| auto& vp8_header = header.video_type_header.emplace<RTPVideoHeaderVP8>(); |
| for (size_t i = 0; i < arraysize(kPattern) * kNumRepetitions; ++i) { |
| vp8_header.temporalIdx = kPattern[i % arraysize(kPattern)]; |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs); |
| fake_clock_.AdvanceTimeMilliseconds(kFrameIntervalMs); |
| } |
| |
| // Since we're at the start of the pattern, the next expected frame in TL0 is |
| // right now. We will wait at most one expected retransmission time before |
| // acknowledging that it did not arrive, which means this frame and the next |
| // will not be retransmitted. |
| vp8_header.temporalIdx = 1; |
| EXPECT_EQ(StorageType::kDontRetransmit, |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs)); |
| fake_clock_.AdvanceTimeMilliseconds(kFrameIntervalMs); |
| EXPECT_EQ(StorageType::kDontRetransmit, |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs)); |
| fake_clock_.AdvanceTimeMilliseconds(kFrameIntervalMs); |
| |
| // The TL0 frame did not arrive. So allow retransmission. |
| EXPECT_EQ(StorageType::kAllowRetransmission, |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs)); |
| fake_clock_.AdvanceTimeMilliseconds(kFrameIntervalMs); |
| |
| // Insert a frame for TL2. We just had frame in TL1, so the next one there is |
| // in three frames away. TL0 is still too far in the past. So, allow |
| // retransmission. |
| vp8_header.temporalIdx = 2; |
| EXPECT_EQ(StorageType::kAllowRetransmission, |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs)); |
| fake_clock_.AdvanceTimeMilliseconds(kFrameIntervalMs); |
| |
| // Another TL2, next in TL1 is two frames away. Allow again. |
| EXPECT_EQ(StorageType::kAllowRetransmission, |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs)); |
| fake_clock_.AdvanceTimeMilliseconds(kFrameIntervalMs); |
| |
| // Yet another TL2, next in TL1 is now only one frame away, so don't store |
| // for retransmission. |
| EXPECT_EQ(StorageType::kDontRetransmit, |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs)); |
| } |
| |
| TEST_P(RtpSenderVideoTest, ConditionalRetransmitLimit) { |
| const int64_t kFrameIntervalMs = 200; |
| const int64_t kRttMs = (kFrameIntervalMs * 3) / 2; |
| const int32_t kSettings = |
| kRetransmitBaseLayer | kConditionallyRetransmitHigherLayers; |
| |
| // Insert VP8 frames for all temporal layers, but stop before the final index. |
| RTPVideoHeader header; |
| header.codec = kVideoCodecVP8; |
| |
| // Fill averaging window to prevent rounding errors. |
| constexpr int kNumRepetitions = |
| (RTPSenderVideo::kTLRateWindowSizeMs + (kFrameIntervalMs / 2)) / |
| kFrameIntervalMs; |
| constexpr int kPattern[] = {0, 2, 2, 2}; |
| auto& vp8_header = header.video_type_header.emplace<RTPVideoHeaderVP8>(); |
| for (size_t i = 0; i < arraysize(kPattern) * kNumRepetitions; ++i) { |
| vp8_header.temporalIdx = kPattern[i % arraysize(kPattern)]; |
| |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs); |
| fake_clock_.AdvanceTimeMilliseconds(kFrameIntervalMs); |
| } |
| |
| // Since we're at the start of the pattern, the next expected frame will be |
| // right now in TL0. Put it in TL1 instead. Regular rules would dictate that |
| // we don't store for retransmission because we expect a frame in a lower |
| // layer, but that last frame in TL1 was a long time ago in absolute terms, |
| // so allow retransmission anyway. |
| vp8_header.temporalIdx = 1; |
| EXPECT_EQ(StorageType::kAllowRetransmission, |
| rtp_sender_video_.GetStorageType(header, kSettings, kRttMs)); |
| } |
| |
| void RtpSenderVideoTest::PopulateGenericFrameDescriptor(int version) { |
| const RTPExtensionType ext_type = |
| (version == 0) ? RTPExtensionType::kRtpExtensionGenericFrameDescriptor00 |
| : RTPExtensionType::kRtpExtensionGenericFrameDescriptor01; |
| const int ext_id = |
| (version == 0) ? kGenericDescriptorId00 : kGenericDescriptorId01; |
| |
| const int64_t kFrameId = 100000; |
| uint8_t kFrame[100]; |
| EXPECT_EQ(0, rtp_sender_.RegisterRtpHeaderExtension(ext_type, ext_id)); |
| |
| RTPVideoHeader hdr; |
| RTPVideoHeader::GenericDescriptorInfo& generic = hdr.generic.emplace(); |
| generic.frame_id = kFrameId; |
| generic.temporal_index = 3; |
| generic.spatial_index = 2; |
| generic.higher_spatial_layers.push_back(4); |
| generic.dependencies.push_back(kFrameId - 1); |
| generic.dependencies.push_back(kFrameId - 500); |
| rtp_sender_video_.SendVideo(VideoFrameType::kVideoFrameDelta, kPayload, |
| kTimestamp, 0, kFrame, sizeof(kFrame), nullptr, |
| &hdr, kDefaultExpectedRetransmissionTimeMs); |
| |
| RtpGenericFrameDescriptor descriptor_wire; |
| EXPECT_EQ(1, transport_.packets_sent()); |
| if (version == 0) { |
| ASSERT_TRUE(transport_.last_sent_packet() |
| .GetExtension<RtpGenericFrameDescriptorExtension00>( |
| &descriptor_wire)); |
| } else { |
| ASSERT_TRUE(transport_.last_sent_packet() |
| .GetExtension<RtpGenericFrameDescriptorExtension01>( |
| &descriptor_wire)); |
| } |
| EXPECT_EQ(static_cast<uint16_t>(generic.frame_id), descriptor_wire.FrameId()); |
| EXPECT_EQ(generic.temporal_index, descriptor_wire.TemporalLayer()); |
| EXPECT_THAT(descriptor_wire.FrameDependenciesDiffs(), ElementsAre(1, 500)); |
| uint8_t spatial_bitmask = 0x14; |
| EXPECT_EQ(spatial_bitmask, descriptor_wire.SpatialLayersBitmask()); |
| } |
| |
| TEST_P(RtpSenderVideoTest, PopulateGenericFrameDescriptor00) { |
| PopulateGenericFrameDescriptor(0); |
| } |
| |
| TEST_P(RtpSenderVideoTest, PopulateGenericFrameDescriptor01) { |
| PopulateGenericFrameDescriptor(1); |
| } |
| |
| void RtpSenderVideoTest:: |
| UsesMinimalVp8DescriptorWhenGenericFrameDescriptorExtensionIsUsed( |
| int version) { |
| const int64_t kFrameId = 100000; |
| const size_t kFrameSize = 100; |
| uint8_t kFrame[kFrameSize]; |
| |
| if (version == 0) { |
| ASSERT_TRUE(rtp_sender_.RegisterRtpHeaderExtension( |
| RtpGenericFrameDescriptorExtension00::kUri, kGenericDescriptorId00)); |
| } else { |
| ASSERT_TRUE(rtp_sender_.RegisterRtpHeaderExtension( |
| RtpGenericFrameDescriptorExtension01::kUri, kGenericDescriptorId01)); |
| } |
| |
| RTPVideoHeader hdr; |
| hdr.codec = kVideoCodecVP8; |
| RTPVideoHeaderVP8& vp8 = hdr.video_type_header.emplace<RTPVideoHeaderVP8>(); |
| vp8.pictureId = kFrameId % 0X7FFF; |
| vp8.tl0PicIdx = 13; |
| vp8.temporalIdx = 1; |
| vp8.keyIdx = 2; |
| RTPVideoHeader::GenericDescriptorInfo& generic = hdr.generic.emplace(); |
| generic.frame_id = kFrameId; |
| rtp_sender_video_.RegisterPayloadType(kPayload, "vp8"); |
| rtp_sender_video_.SendVideo(VideoFrameType::kVideoFrameDelta, kPayload, |
| kTimestamp, 0, kFrame, sizeof(kFrame), nullptr, |
| &hdr, kDefaultExpectedRetransmissionTimeMs); |
| |
| ASSERT_EQ(transport_.packets_sent(), 1); |
| // Expect only minimal 1-byte vp8 descriptor was generated. |
| EXPECT_EQ(transport_.last_sent_packet().payload_size(), 1 + kFrameSize); |
| } |
| |
| TEST_P(RtpSenderVideoTest, |
| UsesMinimalVp8DescriptorWhenGenericFrameDescriptorExtensionIsUsed00) { |
| UsesMinimalVp8DescriptorWhenGenericFrameDescriptorExtensionIsUsed(0); |
| } |
| |
| TEST_P(RtpSenderVideoTest, |
| UsesMinimalVp8DescriptorWhenGenericFrameDescriptorExtensionIsUsed01) { |
| UsesMinimalVp8DescriptorWhenGenericFrameDescriptorExtensionIsUsed(1); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(WithAndWithoutOverhead, |
| RtpSenderVideoTest, |
| ::testing::Bool()); |
| |
| } // namespace webrtc |
