Repo created

TMessagesProj/jni/voip/webrtc/media/base/media_channel_impl.cc

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+/*
+ *  Copyright (c) 2018 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 "media/base/media_channel_impl.h"
+
+#include <map>
+#include <string>
+#include <type_traits>
+#include <utility>
+
+#include "absl/functional/any_invocable.h"
+#include "api/audio_options.h"
+#include "api/media_stream_interface.h"
+#include "api/rtc_error.h"
+#include "api/rtp_sender_interface.h"
+#include "api/units/time_delta.h"
+#include "api/video/video_timing.h"
+#include "api/video_codecs/scalability_mode.h"
+#include "common_video/include/quality_limitation_reason.h"
+#include "media/base/codec.h"
+#include "media/base/media_channel.h"
+#include "media/base/rtp_utils.h"
+#include "media/base/stream_params.h"
+#include "modules/rtp_rtcp/include/report_block_data.h"
+#include "rtc_base/checks.h"
+
+namespace webrtc {
+
+webrtc::RTCError InvokeSetParametersCallback(SetParametersCallback& callback,
+                                             RTCError error) {
+  if (callback) {
+    std::move(callback)(error);
+    callback = nullptr;
+  }
+  return error;
+}
+
+}  // namespace webrtc
+
+namespace cricket {
+using webrtc::FrameDecryptorInterface;
+using webrtc::FrameEncryptorInterface;
+using webrtc::FrameTransformerInterface;
+using webrtc::PendingTaskSafetyFlag;
+using webrtc::SafeTask;
+using webrtc::TaskQueueBase;
+using webrtc::VideoTrackInterface;
+
+VideoOptions::VideoOptions()
+    : content_hint(VideoTrackInterface::ContentHint::kNone) {}
+VideoOptions::~VideoOptions() = default;
+
+MediaChannelUtil::MediaChannelUtil(TaskQueueBase* network_thread,
+                                   bool enable_dscp)
+    : transport_(network_thread, enable_dscp) {}
+
+MediaChannelUtil::~MediaChannelUtil() {}
+
+void MediaChannelUtil::SetInterface(MediaChannelNetworkInterface* iface) {
+  transport_.SetInterface(iface);
+}
+
+int MediaChannelUtil::GetRtpSendTimeExtnId() const {
+  return -1;
+}
+
+bool MediaChannelUtil::SendPacket(rtc::CopyOnWriteBuffer* packet,
+                                  const rtc::PacketOptions& options) {
+  return transport_.DoSendPacket(packet, false, options);
+}
+
+bool MediaChannelUtil::SendRtcp(rtc::CopyOnWriteBuffer* packet,
+                                const rtc::PacketOptions& options) {
+  return transport_.DoSendPacket(packet, true, options);
+}
+
+int MediaChannelUtil::SetOption(MediaChannelNetworkInterface::SocketType type,
+                                rtc::Socket::Option opt,
+                                int option) {
+  return transport_.SetOption(type, opt, option);
+}
+
+// Corresponds to the SDP attribute extmap-allow-mixed, see RFC8285.
+// Set to true if it's allowed to mix one- and two-byte RTP header extensions
+// in the same stream. The setter and getter must only be called from
+// worker_thread.
+void MediaChannelUtil::SetExtmapAllowMixed(bool extmap_allow_mixed) {
+  extmap_allow_mixed_ = extmap_allow_mixed;
+}
+
+bool MediaChannelUtil::ExtmapAllowMixed() const {
+  return extmap_allow_mixed_;
+}
+
+bool MediaChannelUtil::HasNetworkInterface() const {
+  return transport_.HasNetworkInterface();
+}
+
+bool MediaChannelUtil::DscpEnabled() const {
+  return transport_.DscpEnabled();
+}
+
+void MediaChannelUtil::SetPreferredDscp(rtc::DiffServCodePoint new_dscp) {
+  transport_.SetPreferredDscp(new_dscp);
+}
+
+MediaSenderInfo::MediaSenderInfo() = default;
+MediaSenderInfo::~MediaSenderInfo() = default;
+
+MediaReceiverInfo::MediaReceiverInfo() = default;
+MediaReceiverInfo::~MediaReceiverInfo() = default;
+
+VoiceSenderInfo::VoiceSenderInfo() = default;
+VoiceSenderInfo::~VoiceSenderInfo() = default;
+
+VoiceReceiverInfo::VoiceReceiverInfo() = default;
+VoiceReceiverInfo::~VoiceReceiverInfo() = default;
+
+VideoSenderInfo::VideoSenderInfo() = default;
+VideoSenderInfo::~VideoSenderInfo() = default;
+
+VideoReceiverInfo::VideoReceiverInfo() = default;
+VideoReceiverInfo::~VideoReceiverInfo() = default;
+
+VoiceMediaInfo::VoiceMediaInfo() = default;
+VoiceMediaInfo::~VoiceMediaInfo() = default;
+
+VideoMediaInfo::VideoMediaInfo() = default;
+VideoMediaInfo::~VideoMediaInfo() = default;
+
+VideoMediaSendInfo::VideoMediaSendInfo() = default;
+VideoMediaSendInfo::~VideoMediaSendInfo() = default;
+
+VoiceMediaSendInfo::VoiceMediaSendInfo() = default;
+VoiceMediaSendInfo::~VoiceMediaSendInfo() = default;
+
+VideoMediaReceiveInfo::VideoMediaReceiveInfo() = default;
+VideoMediaReceiveInfo::~VideoMediaReceiveInfo() = default;
+
+VoiceMediaReceiveInfo::VoiceMediaReceiveInfo() = default;
+VoiceMediaReceiveInfo::~VoiceMediaReceiveInfo() = default;
+
+AudioSenderParameter::AudioSenderParameter() = default;
+AudioSenderParameter::~AudioSenderParameter() = default;
+
+std::map<std::string, std::string> AudioSenderParameter::ToStringMap() const {
+  auto params = SenderParameters::ToStringMap();
+  params["options"] = options.ToString();
+  return params;
+}
+
+VideoSenderParameters::VideoSenderParameters() = default;
+VideoSenderParameters::~VideoSenderParameters() = default;
+
+std::map<std::string, std::string> VideoSenderParameters::ToStringMap() const {
+  auto params = SenderParameters::ToStringMap();
+  params["conference_mode"] = (conference_mode ? "yes" : "no");
+  return params;
+}
+
+// --------------------- MediaChannelUtil::TransportForMediaChannels -----
+
+MediaChannelUtil::TransportForMediaChannels::TransportForMediaChannels(
+    webrtc::TaskQueueBase* network_thread,
+    bool enable_dscp)
+    : network_safety_(webrtc::PendingTaskSafetyFlag::CreateDetachedInactive()),
+      network_thread_(network_thread),
+
+      enable_dscp_(enable_dscp) {}
+
+MediaChannelUtil::TransportForMediaChannels::~TransportForMediaChannels() {
+  RTC_DCHECK(!network_interface_);
+}
+
+bool MediaChannelUtil::TransportForMediaChannels::SendRtcp(
+    rtc::ArrayView<const uint8_t> packet) {
+  auto send = [this, packet = rtc::CopyOnWriteBuffer(
+                         packet, kMaxRtpPacketLen)]() mutable {
+    rtc::PacketOptions rtc_options;
+    if (DscpEnabled()) {
+      rtc_options.dscp = PreferredDscp();
+    }
+    DoSendPacket(&packet, true, rtc_options);
+  };
+
+  if (network_thread_->IsCurrent()) {
+    send();
+  } else {
+    network_thread_->PostTask(SafeTask(network_safety_, std::move(send)));
+  }
+  return true;
+}
+
+bool MediaChannelUtil::TransportForMediaChannels::SendRtp(
+    rtc::ArrayView<const uint8_t> packet,
+    const webrtc::PacketOptions& options) {
+  auto send =
+      [this, packet_id = options.packet_id,
+       included_in_feedback = options.included_in_feedback,
+       included_in_allocation = options.included_in_allocation,
+       batchable = options.batchable,
+       last_packet_in_batch = options.last_packet_in_batch,
+       packet = rtc::CopyOnWriteBuffer(packet, kMaxRtpPacketLen)]() mutable {
+        rtc::PacketOptions rtc_options;
+        rtc_options.packet_id = packet_id;
+        if (DscpEnabled()) {
+          rtc_options.dscp = PreferredDscp();
+        }
+        rtc_options.info_signaled_after_sent.included_in_feedback =
+            included_in_feedback;
+        rtc_options.info_signaled_after_sent.included_in_allocation =
+            included_in_allocation;
+        rtc_options.batchable = batchable;
+        rtc_options.last_packet_in_batch = last_packet_in_batch;
+        DoSendPacket(&packet, false, rtc_options);
+      };
+
+  // TODO(bugs.webrtc.org/11993): ModuleRtpRtcpImpl2 and related classes (e.g.
+  // RTCPSender) aren't aware of the network thread and may trigger calls to
+  // this function from different threads. Update those classes to keep
+  // network traffic on the network thread.
+  if (network_thread_->IsCurrent()) {
+    send();
+  } else {
+    network_thread_->PostTask(SafeTask(network_safety_, std::move(send)));
+  }
+  return true;
+}
+
+void MediaChannelUtil::TransportForMediaChannels::SetInterface(
+    MediaChannelNetworkInterface* iface) {
+  RTC_DCHECK_RUN_ON(network_thread_);
+  iface ? network_safety_->SetAlive() : network_safety_->SetNotAlive();
+  network_interface_ = iface;
+  UpdateDscp();
+}
+
+void MediaChannelUtil::TransportForMediaChannels::UpdateDscp() {
+  rtc::DiffServCodePoint value =
+      enable_dscp_ ? preferred_dscp_ : rtc::DSCP_DEFAULT;
+  int ret = SetOptionLocked(MediaChannelNetworkInterface::ST_RTP,
+                            rtc::Socket::OPT_DSCP, value);
+  if (ret == 0)
+    SetOptionLocked(MediaChannelNetworkInterface::ST_RTCP,
+                    rtc::Socket::OPT_DSCP, value);
+}
+
+bool MediaChannelUtil::TransportForMediaChannels::DoSendPacket(
+    rtc::CopyOnWriteBuffer* packet,
+    bool rtcp,
+    const rtc::PacketOptions& options) {
+  RTC_DCHECK_RUN_ON(network_thread_);
+  if (!network_interface_)
+    return false;
+
+  return (!rtcp) ? network_interface_->SendPacket(packet, options)
+                 : network_interface_->SendRtcp(packet, options);
+}
+
+int MediaChannelUtil::TransportForMediaChannels::SetOption(
+    MediaChannelNetworkInterface::SocketType type,
+    rtc::Socket::Option opt,
+    int option) {
+  RTC_DCHECK_RUN_ON(network_thread_);
+  return SetOptionLocked(type, opt, option);
+}
+
+int MediaChannelUtil::TransportForMediaChannels::SetOptionLocked(
+    MediaChannelNetworkInterface::SocketType type,
+    rtc::Socket::Option opt,
+    int option) {
+  if (!network_interface_)
+    return -1;
+  return network_interface_->SetOption(type, opt, option);
+}
+
+void MediaChannelUtil::TransportForMediaChannels::SetPreferredDscp(
+    rtc::DiffServCodePoint new_dscp) {
+  if (!network_thread_->IsCurrent()) {
+    // This is currently the common path as the derived channel classes
+    // get called on the worker thread. There are still some tests though
+    // that call directly on the network thread.
+    network_thread_->PostTask(SafeTask(
+        network_safety_, [this, new_dscp]() { SetPreferredDscp(new_dscp); }));
+    return;
+  }
+
+  RTC_DCHECK_RUN_ON(network_thread_);
+  if (new_dscp == preferred_dscp_)
+    return;
+
+  preferred_dscp_ = new_dscp;
+  UpdateDscp();
+}
+
+}  // namespace cricket