Migrate rtp_rtcp to absl::AnyInvocable based TaskQueueBase interface

Bug: webrtc:14245
Change-Id: I037f964130648caf0bd1de86611f8681d475b078
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/268146
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37481}

modules/rtp_rtcp/BUILD.gn

@@ -275,7 +275,6 @@ rtc_library("rtp_rtcp") {
     "../../api/rtc_event_log",
     "../../api/task_queue:pending_task_safety_flag",
     "../../api/task_queue:task_queue",
-    "../../api/task_queue:to_queued_task",
     "../../api/transport:field_trial_based_config",
     "../../api/transport/rtp:dependency_descriptor",
     "../../api/transport/rtp:rtp_source",
@@ -394,7 +393,6 @@ rtc_library("rtcp_transceiver") {
     "../../api:rtp_headers",
     "../../api:transport_api",
     "../../api/task_queue",
-    "../../api/task_queue:to_queued_task",
     "../../api/units:data_rate",
     "../../api/units:time_delta",
     "../../api/units:timestamp",
@@ -412,6 +410,8 @@ rtc_library("rtcp_transceiver") {
   absl_deps = [
     "//third_party/abseil-cpp/absl/algorithm:container",
     "//third_party/abseil-cpp/absl/base:core_headers",
+    "//third_party/abseil-cpp/absl/cleanup",
+    "//third_party/abseil-cpp/absl/functional:any_invocable",
     "//third_party/abseil-cpp/absl/memory",
     "//third_party/abseil-cpp/absl/types:optional",
   ]
@@ -616,7 +616,6 @@ if (rtc_include_tests) {
       "../../api:time_controller",
       "../../api:transport_api",
       "../../api/rtc_event_log",
-      "../../api/task_queue:to_queued_task",
       "../../api/transport:field_trial_based_config",
       "../../api/transport/rtp:dependency_descriptor",
       "../../api/units:data_rate",

modules/rtp_rtcp/source/rtcp_transceiver.cc

@@ -14,7 +14,7 @@
 #include <utility>
 #include <vector>
 
-#include "api/task_queue/to_queued_task.h"
+#include "absl/cleanup/cleanup.h"
 #include "api/units/timestamp.h"
 #include "modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h"
 #include "rtc_base/checks.h"
@@ -34,21 +34,19 @@ RtcpTransceiver::~RtcpTransceiver() {
   if (!rtcp_transceiver_)
     return;
   auto rtcp_transceiver = std::move(rtcp_transceiver_);
-  task_queue_->PostTask(
+  task_queue_->PostTask([rtcp_transceiver = std::move(rtcp_transceiver)] {
-      ToQueuedTask([rtcp_transceiver = std::move(rtcp_transceiver)] {
     rtcp_transceiver->StopPeriodicTask();
-      }));
+  });
   RTC_DCHECK(!rtcp_transceiver_);
 }
 
-void RtcpTransceiver::Stop(std::function<void()> on_destroyed) {
+void RtcpTransceiver::Stop(absl::AnyInvocable<void() &&> on_destroyed) {
   RTC_DCHECK(rtcp_transceiver_);
   auto rtcp_transceiver = std::move(rtcp_transceiver_);
-  task_queue_->PostTask(ToQueuedTask(
+  absl::Cleanup cleanup = std::move(on_destroyed);
-      [rtcp_transceiver = std::move(rtcp_transceiver)] {
+  task_queue_->PostTask(
-        rtcp_transceiver->StopPeriodicTask();
+      [rtcp_transceiver = std::move(rtcp_transceiver),
-      },
+       cleanup = std::move(cleanup)] { rtcp_transceiver->StopPeriodicTask(); });
-      std::move(on_destroyed)));
   RTC_DCHECK(!rtcp_transceiver_);
 }
 
@@ -57,28 +55,28 @@ void RtcpTransceiver::AddMediaReceiverRtcpObserver(
     MediaReceiverRtcpObserver* observer) {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  task_queue_->PostTask(ToQueuedTask([ptr, remote_ssrc, observer] {
+  task_queue_->PostTask([ptr, remote_ssrc, observer] {
     ptr->AddMediaReceiverRtcpObserver(remote_ssrc, observer);
-  }));
+  });
 }
 
 void RtcpTransceiver::RemoveMediaReceiverRtcpObserver(
     uint32_t remote_ssrc,
     MediaReceiverRtcpObserver* observer,
-    std::function<void()> on_removed) {
+    absl::AnyInvocable<void() &&> on_removed) {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  auto remove = [ptr, remote_ssrc, observer] {
+  absl::Cleanup cleanup = std::move(on_removed);
+  task_queue_->PostTask(
+      [ptr, remote_ssrc, observer, cleanup = std::move(cleanup)] {
         ptr->RemoveMediaReceiverRtcpObserver(remote_ssrc, observer);
-  };
+      });
-  task_queue_->PostTask(ToQueuedTask(std::move(remove), std::move(on_removed)));
 }
 
 void RtcpTransceiver::SetReadyToSend(bool ready) {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  task_queue_->PostTask(
+  task_queue_->PostTask([ptr, ready] { ptr->SetReadyToSend(ready); });
-      ToQueuedTask([ptr, ready] { ptr->SetReadyToSend(ready); }));
 }
 
 void RtcpTransceiver::ReceivePacket(rtc::CopyOnWriteBuffer packet) {
@@ -86,29 +84,28 @@ void RtcpTransceiver::ReceivePacket(rtc::CopyOnWriteBuffer packet) {
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
   Timestamp now = clock_->CurrentTime();
   task_queue_->PostTask(
-      ToQueuedTask([ptr, packet, now] { ptr->ReceivePacket(packet, now); }));
+      [ptr, packet, now] { ptr->ReceivePacket(packet, now); });
 }
 
 void RtcpTransceiver::SendCompoundPacket() {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  task_queue_->PostTask(ToQueuedTask([ptr] { ptr->SendCompoundPacket(); }));
+  task_queue_->PostTask([ptr] { ptr->SendCompoundPacket(); });
 }
 
 void RtcpTransceiver::SetRemb(int64_t bitrate_bps,
                               std::vector<uint32_t> ssrcs) {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  task_queue_->PostTask(
+  task_queue_->PostTask([ptr, bitrate_bps, ssrcs = std::move(ssrcs)]() mutable {
-      ToQueuedTask([ptr, bitrate_bps, ssrcs = std::move(ssrcs)]() mutable {
     ptr->SetRemb(bitrate_bps, std::move(ssrcs));
-      }));
+  });
 }
 
 void RtcpTransceiver::UnsetRemb() {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  task_queue_->PostTask(ToQueuedTask([ptr] { ptr->UnsetRemb(); }));
+  task_queue_->PostTask([ptr] { ptr->UnsetRemb(); });
 }
 
 void RtcpTransceiver::SendCombinedRtcpPacket(
@@ -116,26 +113,25 @@ void RtcpTransceiver::SendCombinedRtcpPacket(
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
   task_queue_->PostTask(
-      ToQueuedTask([ptr, rtcp_packets = std::move(rtcp_packets)]() mutable {
+      [ptr, rtcp_packets = std::move(rtcp_packets)]() mutable {
         ptr->SendCombinedRtcpPacket(std::move(rtcp_packets));
-      }));
+      });
 }
 
 void RtcpTransceiver::SendNack(uint32_t ssrc,
                                std::vector<uint16_t> sequence_numbers) {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  task_queue_->PostTask(ToQueuedTask(
+  task_queue_->PostTask(
       [ptr, ssrc, sequence_numbers = std::move(sequence_numbers)]() mutable {
         ptr->SendNack(ssrc, std::move(sequence_numbers));
-      }));
+      });
 }
 
 void RtcpTransceiver::SendPictureLossIndication(uint32_t ssrc) {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  task_queue_->PostTask(
+  task_queue_->PostTask([ptr, ssrc] { ptr->SendPictureLossIndication(ssrc); });
-      ToQueuedTask([ptr, ssrc] { ptr->SendPictureLossIndication(ssrc); }));
 }
 
 void RtcpTransceiver::SendFullIntraRequest(std::vector<uint32_t> ssrcs) {
@@ -146,10 +142,9 @@ void RtcpTransceiver::SendFullIntraRequest(std::vector<uint32_t> ssrcs,
                                            bool new_request) {
   RTC_CHECK(rtcp_transceiver_);
   RtcpTransceiverImpl* ptr = rtcp_transceiver_.get();
-  task_queue_->PostTask(
+  task_queue_->PostTask([ptr, ssrcs = std::move(ssrcs), new_request] {
-      ToQueuedTask([ptr, ssrcs = std::move(ssrcs), new_request] {
     ptr->SendFullIntraRequest(ssrcs, new_request);
-      }));
+  });
 }
 
 }  // namespace webrtc

modules/rtp_rtcp/source/rtcp_transceiver.h

@@ -11,11 +11,11 @@
 #ifndef MODULES_RTP_RTCP_SOURCE_RTCP_TRANSCEIVER_H_
 #define MODULES_RTP_RTCP_SOURCE_RTCP_TRANSCEIVER_H_
 
-#include <functional>
 #include <memory>
 #include <string>
 #include <vector>
 
+#include "absl/functional/any_invocable.h"
 #include "api/task_queue/task_queue_base.h"
 #include "modules/rtp_rtcp/source/rtcp_transceiver_config.h"
 #include "modules/rtp_rtcp/source/rtcp_transceiver_impl.h"
@@ -44,7 +44,7 @@ class RtcpTransceiver : public RtcpFeedbackSenderInterface {
   // Note that interfaces provided in constructor or registered with AddObserver
   // still might be used by the transceiver on the task queue
   // until `on_destroyed` runs.
-  void Stop(std::function<void()> on_destroyed);
+  void Stop(absl::AnyInvocable<void() &&> on_destroyed);
 
   // Registers observer to be notified about incoming rtcp packets.
   // Calls to observer will be done on the `config.task_queue`.
@@ -52,9 +52,10 @@ class RtcpTransceiver : public RtcpFeedbackSenderInterface {
                                     MediaReceiverRtcpObserver* observer);
   // Deregisters the observer. Might return before observer is deregistered.
   // Runs `on_removed` when observer is deregistered.
-  void RemoveMediaReceiverRtcpObserver(uint32_t remote_ssrc,
+  void RemoveMediaReceiverRtcpObserver(
+      uint32_t remote_ssrc,
       MediaReceiverRtcpObserver* observer,
-                                       std::function<void()> on_removed);
+      absl::AnyInvocable<void() &&> on_removed);
 
   // Enables/disables sending rtcp packets eventually.
   // Packets may be sent after the SetReadyToSend(false) returns, but no new

modules/rtp_rtcp/source/rtcp_transceiver_impl.cc

@@ -16,7 +16,6 @@
 #include "absl/algorithm/container.h"
 #include "absl/memory/memory.h"
 #include "api/call/transport.h"
-#include "api/task_queue/to_queued_task.h"
 #include "api/video/video_bitrate_allocation.h"
 #include "modules/rtp_rtcp/include/receive_statistics.h"
 #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"

modules/rtp_rtcp/source/rtcp_transceiver_impl_unittest.cc

@@ -16,7 +16,6 @@
 
 #include "absl/memory/memory.h"
 #include "api/rtp_headers.h"
-#include "api/task_queue/to_queued_task.h"
 #include "api/test/create_time_controller.h"
 #include "api/test/time_controller.h"
 #include "api/units/data_rate.h"
@@ -216,11 +215,11 @@ TEST_F(RtcpTransceiverImplTest, NeedToStopPeriodicTaskToDestroyOnTaskQueue) {
   EXPECT_TRUE(transport.WaitPacket());
 
   bool done = false;
-  queue->PostTask(ToQueuedTask([rtcp_transceiver, &done] {
+  queue->PostTask([rtcp_transceiver, &done] {
     rtcp_transceiver->StopPeriodicTask();
     delete rtcp_transceiver;
     done = true;
-  }));
+  });
   ASSERT_TRUE(time_controller().Wait([&] { return done; }, kAlmostForever));
 }
 
@@ -233,11 +232,11 @@ TEST_F(RtcpTransceiverImplTest, CanBeDestroyedRightAfterCreation) {
   config.outgoing_transport = &transport;
 
   bool done = false;
-  queue->PostTask(ToQueuedTask([&] {
+  queue->PostTask([&] {
     RtcpTransceiverImpl rtcp_transceiver(config);
     rtcp_transceiver.StopPeriodicTask();
     done = true;
-  }));
+  });
   ASSERT_TRUE(time_controller().Wait([&] { return done; }, kAlmostForever));
 }
 
@@ -268,18 +267,18 @@ TEST_F(RtcpTransceiverImplTest, DelaysSendingFirstCompondPacket) {
   absl::optional<RtcpTransceiverImpl> rtcp_transceiver;
 
   Timestamp started = CurrentTime();
-  queue->PostTask(ToQueuedTask([&] { rtcp_transceiver.emplace(config); }));
+  queue->PostTask([&] { rtcp_transceiver.emplace(config); });
   EXPECT_TRUE(transport.WaitPacket());
 
   EXPECT_GE(CurrentTime() - started, config.initial_report_delay);
 
   // Cleanup.
   bool done = false;
-  queue->PostTask(ToQueuedTask([&] {
+  queue->PostTask([&] {
     rtcp_transceiver->StopPeriodicTask();
     rtcp_transceiver.reset();
     done = true;
-  }));
+  });
   ASSERT_TRUE(time_controller().Wait([&] { return done; }, kAlmostForever));
 }
 
@@ -294,12 +293,12 @@ TEST_F(RtcpTransceiverImplTest, PeriodicallySendsPackets) {
   config.task_queue = queue.get();
   absl::optional<RtcpTransceiverImpl> rtcp_transceiver;
   Timestamp time_just_before_1st_packet = Timestamp::MinusInfinity();
-  queue->PostTask(ToQueuedTask([&] {
+  queue->PostTask([&] {
     // Because initial_report_delay_ms is set to 0, time_just_before_the_packet
     // should be very close to the time_of_the_packet.
     time_just_before_1st_packet = CurrentTime();
     rtcp_transceiver.emplace(config);
-  }));
+  });
 
   EXPECT_TRUE(transport.WaitPacket());
   EXPECT_TRUE(transport.WaitPacket());
@@ -310,11 +309,11 @@ TEST_F(RtcpTransceiverImplTest, PeriodicallySendsPackets) {
 
   // Cleanup.
   bool done = false;
-  queue->PostTask(ToQueuedTask([&] {
+  queue->PostTask([&] {
     rtcp_transceiver->StopPeriodicTask();
     rtcp_transceiver.reset();
     done = true;
-  }));
+  });
   ASSERT_TRUE(time_controller().Wait([&] { return done; }, kAlmostForever));
 }
 
@@ -328,19 +327,20 @@ TEST_F(RtcpTransceiverImplTest, SendCompoundPacketDelaysPeriodicSendPackets) {
   config.report_period = kReportPeriod;
   config.task_queue = queue.get();
   absl::optional<RtcpTransceiverImpl> rtcp_transceiver;
-  queue->PostTask(ToQueuedTask([&] { rtcp_transceiver.emplace(config); }));
+  queue->PostTask([&] { rtcp_transceiver.emplace(config); });
 
   // Wait for the first packet.
   EXPECT_TRUE(transport.WaitPacket());
   // Send non periodic one after half period.
   bool non_periodic = false;
   Timestamp time_of_non_periodic_packet = Timestamp::MinusInfinity();
-  queue->PostDelayedTask(ToQueuedTask([&] {
+  queue->PostDelayedTask(
+      [&] {
         time_of_non_periodic_packet = CurrentTime();
         rtcp_transceiver->SendCompoundPacket();
         non_periodic = true;
-                         }),
+      },
-                         (config.report_period / 2).ms());
+      config.report_period / 2);
   // Though non-periodic packet is scheduled just in between periodic, due to
   // small period and task queue flakiness it migth end-up 1ms after next
   // periodic packet. To be sure duration after non-periodic packet is tested
@@ -356,11 +356,11 @@ TEST_F(RtcpTransceiverImplTest, SendCompoundPacketDelaysPeriodicSendPackets) {
 
   // Cleanup.
   bool done = false;
-  queue->PostTask(ToQueuedTask([&] {
+  queue->PostTask([&] {
     rtcp_transceiver->StopPeriodicTask();
     rtcp_transceiver.reset();
     done = true;
-  }));
+  });
   ASSERT_TRUE(time_controller().Wait([&] { return done; }, kAlmostForever));
 }
 
@@ -415,18 +415,17 @@ TEST_F(RtcpTransceiverImplTest, SendsPeriodicRtcpWhenNetworkStateIsUp) {
   absl::optional<RtcpTransceiverImpl> rtcp_transceiver;
   rtcp_transceiver.emplace(config);
 
-  queue->PostTask(
+  queue->PostTask([&] { rtcp_transceiver->SetReadyToSend(true); });
-      ToQueuedTask([&] { rtcp_transceiver->SetReadyToSend(true); }));
 
   EXPECT_TRUE(transport.WaitPacket());
 
   // Cleanup.
   bool done = false;
-  queue->PostTask(ToQueuedTask([&] {
+  queue->PostTask([&] {
     rtcp_transceiver->StopPeriodicTask();
     rtcp_transceiver.reset();
     done = true;
-  }));
+  });
   ASSERT_TRUE(time_controller().Wait([&] { return done; }, kAlmostForever));
 }
 

modules/rtp_rtcp/source/rtp_rtcp_impl2.cc

@@ -22,7 +22,6 @@
 #include "absl/strings/string_view.h"
 #include "absl/types/optional.h"
 #include "api/sequence_checker.h"
-#include "api/task_queue/to_queued_task.h"
 #include "api/transport/field_trial_based_config.h"
 #include "api/units/time_delta.h"
 #include "api/units/timestamp.h"
@@ -52,13 +51,6 @@ RTCPSender::Configuration AddRtcpSendEvaluationCallback(
   return config;
 }
 
-int DelayMillisForDuration(TimeDelta duration) {
-  // TimeDelta::ms() rounds downwards sometimes which leads to too little time
-  // slept. Account for this, unless `duration` is exactly representable in
-  // millisecs.
-  return (duration.us() + rtc::kNumMillisecsPerSec - 1) /
-         rtc::kNumMicrosecsPerMillisec;
-}
 }  // namespace
 
 ModuleRtpRtcpImpl2::RtpSenderContext::RtpSenderContext(
@@ -805,7 +797,7 @@ void ModuleRtpRtcpImpl2::ScheduleRtcpSendEvaluation(TimeDelta duration) {
   // than the worker queue on which it's created on implies that external
   // synchronization is present and removes this activity before destruction.
   if (duration.IsZero()) {
-    worker_queue_->PostTask(ToQueuedTask(task_safety_, [this] {
+    worker_queue_->PostTask(SafeTask(task_safety_.flag(), [this] {
       RTC_DCHECK_RUN_ON(worker_queue_);
       MaybeSendRtcp();
     }));
@@ -823,12 +815,12 @@ void ModuleRtpRtcpImpl2::ScheduleMaybeSendRtcpAtOrAfterTimestamp(
   // See note in ScheduleRtcpSendEvaluation about why `worker_queue_` can be
   // accessed.
   worker_queue_->PostDelayedTask(
-      ToQueuedTask(task_safety_,
+      SafeTask(task_safety_.flag(),
                [this, execution_time] {
                  RTC_DCHECK_RUN_ON(worker_queue_);
                  MaybeSendRtcpAtOrAfterTimestamp(execution_time);
                }),
-      DelayMillisForDuration(duration));
+      duration.RoundUpTo(TimeDelta::Millis(1)));
 }
 
 }  // namespace webrtc

modules/rtp_rtcp/source/rtp_rtcp_impl2.h

@@ -25,7 +25,6 @@
 #include "api/sequence_checker.h"
 #include "api/task_queue/pending_task_safety_flag.h"
 #include "api/task_queue/task_queue_base.h"
-#include "api/task_queue/to_queued_task.h"
 #include "api/units/time_delta.h"
 #include "api/video/video_bitrate_allocation.h"
 #include "modules/include/module_fec_types.h"

modules/rtp_rtcp/source/rtp_sender_egress.cc

@@ -16,7 +16,6 @@
 #include <utility>
 
 #include "absl/strings/match.h"
-#include "api/task_queue/to_queued_task.h"
 #include "api/transport/field_trial_based_config.h"
 #include "logging/rtc_event_log/events/rtc_event_rtp_packet_outgoing.h"
 #include "rtc_base/logging.h"
@@ -159,15 +158,15 @@ void RtpSenderEgress::SendPacket(RtpPacketToSend* packet,
 
 #if BWE_TEST_LOGGING_COMPILE_TIME_ENABLE
   worker_queue_->PostTask(
-      ToQueuedTask(task_safety_, [this, now, packet_ssrc]() {
+      SafeTask(task_safety_.flag(), [this, now, packet_ssrc]() {
         BweTestLoggingPlot(now.ms(), packet_ssrc);
       }));
 #endif
 
   if (need_rtp_packet_infos_ &&
       packet->packet_type() == RtpPacketToSend::Type::kVideo) {
-    worker_queue_->PostTask(ToQueuedTask(
+    worker_queue_->PostTask(SafeTask(
-        task_safety_,
+        task_safety_.flag(),
         [this, packet_timestamp = packet->Timestamp(),
          is_first_packet_of_frame = packet->is_first_packet_of_frame(),
          is_last_packet_of_frame = packet->Marker(),
@@ -294,7 +293,7 @@ void RtpSenderEgress::SendPacket(RtpPacketToSend* packet,
     RtpPacketCounter counter(*packet);
     size_t size = packet->size();
     worker_queue_->PostTask(
-        ToQueuedTask(task_safety_, [this, now, packet_ssrc, packet_type,
+        SafeTask(task_safety_.flag(), [this, now, packet_ssrc, packet_type,
                                        counter = std::move(counter), size]() {
           RTC_DCHECK_RUN_ON(worker_queue_);
           UpdateRtpStats(now.ms(), packet_ssrc, packet_type, std::move(counter),

modules/rtp_rtcp/source/rtp_sender_unittest.cc

@@ -15,7 +15,6 @@
 
 #include "absl/strings/string_view.h"
 #include "api/rtc_event_log/rtc_event.h"
-#include "api/task_queue/to_queued_task.h"
 #include "api/transport/field_trial_based_config.h"
 #include "api/video/video_codec_constants.h"
 #include "api/video/video_timing.h"

modules/rtp_rtcp/source/rtp_sender_video_frame_transformer_delegate.cc

@@ -14,7 +14,6 @@
 #include <vector>
 
 #include "absl/memory/memory.h"
-#include "api/task_queue/to_queued_task.h"
 #include "modules/rtp_rtcp/source/rtp_descriptor_authentication.h"
 #include "modules/rtp_rtcp/source/rtp_sender_video.h"
 
@@ -140,10 +139,10 @@ void RTPSenderVideoFrameTransformerDelegate::OnTransformedFrame(
   if (!sender_ || !encoder_queue_)
     return;
   rtc::scoped_refptr<RTPSenderVideoFrameTransformerDelegate> delegate(this);
-  encoder_queue_->PostTask(ToQueuedTask(
+  encoder_queue_->PostTask(
       [delegate = std::move(delegate), frame = std::move(frame)]() mutable {
         delegate->SendVideo(std::move(frame));
-      }));
+      });
 }
 
 void RTPSenderVideoFrameTransformerDelegate::SendVideo(