Revert "Improve screen sharing with PipeWire on Wayland"

This reverts commit 84524e6b196153e35910111f61c36489ec2bd1d7.

Reason for revert: https://webrtc-review.googlesource.com/c/src/+/160649/33#message-a83e8959e03a274642ca2ce1abb9ea0099f08097 + suspected in breaking WebRTC to Chromium rolls https://chromium-review.googlesource.com/c/chromium/src/+/2468139

Original change's description:
> Improve screen sharing with PipeWire on Wayland
>
> Currently, sharing a screen or a window on Wayland opens unnecessary
> preview dialog on Chromium side, which is then followed by a similar
> dialog on xdg-desktop-portal side. The Chromium dialog is useless on
> Wayland, as it doesn't show anything. This is because Chromium doesn't
> have access to screen content as in case of X11 session. To fix this, we
> want to avoid showing the preview dialog in case we find that we run on
> Wayland and only pick a screen or a window from the dialog that comes
> from xdg-desktop-portal.
>
> This patch splits BaseCapturerPipeWire class, moving portal related code
> into XdgPortalBase, which does all the DBus communication and which is
> supposed to be reused by BaseCapturerPipeWire when the user confirms
> the dialog from xdg-desktop-portal. The XdgPortalBase is extended to
> support multiple calls at once, where each call is identified by Id.
>
> Relevant change on Chromium side will be in a different review.
>
> Bug: chromium:682122
> Change-Id: I2bcd07d16a5eb3b902db63ea9a164c5bd39c23a0
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/187492
> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> Reviewed-by: Tommi <tommi@webrtc.org>
> Commit-Queue: Tommi <tommi@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#32388}

TBR=mbonadei@webrtc.org,tommi@webrtc.org,sprang@webrtc.org,guidou@webrtc.org,mfoltz@chromium.org,grulja@gmail.com

Change-Id: I1a9748ced5626903b12214d677c7b8919c2ac385
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:682122
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/188380
Reviewed-by: Olga Sharonova <olka@webrtc.org>
Commit-Queue: Olga Sharonova <olka@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32398}
diff --git a/modules/desktop_capture/BUILD.gn b/modules/desktop_capture/BUILD.gn
index fd26d70..2cb6891 100644
--- a/modules/desktop_capture/BUILD.gn
+++ b/modules/desktop_capture/BUILD.gn
@@ -76,19 +76,6 @@
         "window_finder_unittest.cc",
       ]
       public_configs = [ ":x11_config" ]
-      if (rtc_use_pipewire) {
-        public_configs += [ ":pipewire_config" ]
-        configs += [
-          ":pipewire_config",
-          ":gio",
-        ]
-
-        if (rtc_link_pipewire) {
-          configs += [ ":pipewire" ]
-        } else {
-          deps += [ ":pipewire_stubs" ]
-        }
-      }
       if (is_win) {
         deps += [ "../../rtc_base:win32" ]
       }
@@ -145,19 +132,6 @@
       }
       deps += [ ":desktop_capture_mock" ]
       public_configs = [ ":x11_config" ]
-      if (rtc_use_pipewire) {
-        public_configs += [ ":pipewire_config" ]
-        configs += [
-          ":pipewire_config",
-          ":gio",
-        ]
-
-        if (rtc_link_pipewire) {
-          configs += [ ":pipewire" ]
-        } else {
-          deps += [ ":pipewire_stubs" ]
-        }
-      }
     }
   }
 
@@ -522,7 +496,6 @@
   absl_deps = [
     "//third_party/abseil-cpp/absl/memory",
     "//third_party/abseil-cpp/absl/strings",
-    "//third_party/abseil-cpp/absl/types:optional",
   ]
 
   if (rtc_use_x11_extensions) {
@@ -543,10 +516,10 @@
     sources += [
       "linux/base_capturer_pipewire.cc",
       "linux/base_capturer_pipewire.h",
-      "linux/pipewire_base.cc",
-      "linux/pipewire_base.h",
-      "linux/xdg_desktop_portal_base.cc",
-      "linux/xdg_desktop_portal_base.h",
+      "linux/screen_capturer_pipewire.cc",
+      "linux/screen_capturer_pipewire.h",
+      "linux/window_capturer_pipewire.cc",
+      "linux/window_capturer_pipewire.h",
     ]
 
     configs += [
diff --git a/modules/desktop_capture/desktop_capture_options.cc b/modules/desktop_capture/desktop_capture_options.cc
index bb9b7068..c89896d 100644
--- a/modules/desktop_capture/desktop_capture_options.cc
+++ b/modules/desktop_capture/desktop_capture_options.cc
@@ -14,9 +14,6 @@
 #elif defined(WEBRTC_WIN)
 #include "modules/desktop_capture/win/full_screen_win_application_handler.h"
 #endif
-#if defined(WEBRTC_USE_PIPEWIRE)
-#include "modules/desktop_capture/linux/xdg_desktop_portal_base.h"
-#endif
 
 namespace webrtc {
 
@@ -38,9 +35,6 @@
 #if defined(WEBRTC_USE_X11)
   result.set_x_display(SharedXDisplay::CreateDefault());
 #endif
-#if defined(WEBRTC_USE_PIPEWIRE)
-  result.set_xdp_base(XdgDesktopPortalBase::CreateDefault());
-#endif
 #if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
   result.set_configuration_monitor(new DesktopConfigurationMonitor());
   result.set_full_screen_window_detector(
@@ -52,49 +46,4 @@
   return result;
 }
 
-#if defined(WEBRTC_USE_PIPEWIRE)
-void DesktopCaptureOptions::start_request(int32_t request_id) {
-  // In case we get a duplicit start_request call, which might happen when a
-  // browser requests both screen and window sharing, we don't want to do
-  // anything.
-  if (request_id == xdp_base_->CurrentConnectionId()) {
-    return;
-  }
-
-  // In case we are about to start a new request and the previous one is not
-  // finalized and not stream to the web page itself we will just close it.
-  if (!xdp_base_->IsConnectionStreamingOnWeb(absl::nullopt) &&
-      xdp_base_->IsConnectionInitialized(absl::nullopt)) {
-    xdp_base_->CloseConnection(absl::nullopt);
-  }
-
-  xdp_base_->SetCurrentConnectionId(request_id);
-}
-
-void DesktopCaptureOptions::close_request(int32_t request_id) {
-  xdp_base_->CloseConnection(request_id);
-  xdp_base_->SetCurrentConnectionId(absl::nullopt);
-}
-
-absl::optional<int32_t> DesktopCaptureOptions::request_id() {
-  // Reset request_id in case the connection is in final state, which means it
-  // is streaming content to the web page itself and nobody should be asking
-  // again for this ID.
-  if (xdp_base_->IsConnectionStreamingOnWeb(absl::nullopt)) {
-    xdp_base_->SetCurrentConnectionId(absl::nullopt);
-  }
-
-  return xdp_base_->CurrentConnectionId();
-}
-
-XdgDesktopPortalBase* DesktopCaptureOptions::xdp_base() const {
-  return xdp_base_;
-}
-
-void DesktopCaptureOptions::set_xdp_base(
-    rtc::scoped_refptr<XdgDesktopPortalBase> xdp_base) {
-  xdp_base_ = std::move(xdp_base);
-}
-#endif
-
 }  // namespace webrtc
diff --git a/modules/desktop_capture/desktop_capture_options.h b/modules/desktop_capture/desktop_capture_options.h
index 632f7ac..521c80b 100644
--- a/modules/desktop_capture/desktop_capture_options.h
+++ b/modules/desktop_capture/desktop_capture_options.h
@@ -10,7 +10,6 @@
 #ifndef MODULES_DESKTOP_CAPTURE_DESKTOP_CAPTURE_OPTIONS_H_
 #define MODULES_DESKTOP_CAPTURE_DESKTOP_CAPTURE_OPTIONS_H_
 
-#include "absl/types/optional.h"
 #include "api/scoped_refptr.h"
 #include "rtc_base/system/rtc_export.h"
 
@@ -26,8 +25,6 @@
 
 namespace webrtc {
 
-class XdgDesktopPortalBase;
-
 // An object that stores initialization parameters for screen and window
 // capturers.
 class RTC_EXPORT DesktopCaptureOptions {
@@ -134,36 +131,13 @@
 #if defined(WEBRTC_USE_PIPEWIRE)
   bool allow_pipewire() const { return allow_pipewire_; }
   void set_allow_pipewire(bool allow) { allow_pipewire_ = allow; }
-
-  // Provides a way how to identify portal call for a sharing request
-  // made by the client. This allows to go through the preview dialog
-  // and to the web page itself with just one xdg-desktop-portal call.
-  // Client is supposed to:
-  // 1) Call start_request(id) to tell us an identificator for the current
-  // request
-  // 2) Call close_request(id) in case the preview dialog was cancelled
-  // or user picked a web page to be shared
-  // Note: In case the current request is not finalized, we will close it for
-  // safety reasons and client will need to ask the portal again
-  // This was done primarily for chromium support as there was no way how to
-  // identify a portal call made for the preview and later on continue with the
-  // same content on the web page itself.
-
-  void start_request(int32_t request_id);
-  void close_request(int32_t request_id);
-  absl::optional<int32_t> request_id();
-
-  XdgDesktopPortalBase* xdp_base() const;
-  void set_xdp_base(rtc::scoped_refptr<XdgDesktopPortalBase> xdp_base);
 #endif
 
  private:
 #if defined(WEBRTC_USE_X11)
   rtc::scoped_refptr<SharedXDisplay> x_display_;
 #endif
-#if defined(WEBRTC_USE_PIPEWIRE)
-  rtc::scoped_refptr<XdgDesktopPortalBase> xdp_base_;
-#endif
+
 #if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
   rtc::scoped_refptr<DesktopConfigurationMonitor> configuration_monitor_;
   bool allow_iosurface_ = false;
diff --git a/modules/desktop_capture/linux/base_capturer_pipewire.cc b/modules/desktop_capture/linux/base_capturer_pipewire.cc
index f9323f18..2640e93 100644
--- a/modules/desktop_capture/linux/base_capturer_pipewire.cc
+++ b/modules/desktop_capture/linux/base_capturer_pipewire.cc
@@ -10,102 +10,859 @@
 
 #include "modules/desktop_capture/linux/base_capturer_pipewire.h"
 
+#include <gio/gunixfdlist.h>
+#include <glib-object.h>
+#include <spa/param/format-utils.h>
+#include <spa/param/props.h>
+#include <spa/param/video/raw-utils.h>
+#include <spa/support/type-map.h>
+
+#include <memory>
+#include <utility>
+
+#include "absl/memory/memory.h"
+#include "modules/desktop_capture/desktop_capture_options.h"
 #include "modules/desktop_capture/desktop_capturer.h"
-#include "modules/desktop_capture/linux/pipewire_base.h"
 #include "rtc_base/checks.h"
 #include "rtc_base/logging.h"
 
+#if defined(WEBRTC_DLOPEN_PIPEWIRE)
+#include "modules/desktop_capture/linux/pipewire_stubs.h"
+
+using modules_desktop_capture_linux::InitializeStubs;
+using modules_desktop_capture_linux::kModulePipewire;
+using modules_desktop_capture_linux::StubPathMap;
+#endif  // defined(WEBRTC_DLOPEN_PIPEWIRE)
+
 namespace webrtc {
 
-BaseCapturerPipeWire::BaseCapturerPipeWire() {}
+const char kDesktopBusName[] = "org.freedesktop.portal.Desktop";
+const char kDesktopObjectPath[] = "/org/freedesktop/portal/desktop";
+const char kDesktopRequestObjectPath[] =
+    "/org/freedesktop/portal/desktop/request";
+const char kSessionInterfaceName[] = "org.freedesktop.portal.Session";
+const char kRequestInterfaceName[] = "org.freedesktop.portal.Request";
+const char kScreenCastInterfaceName[] = "org.freedesktop.portal.ScreenCast";
 
-BaseCapturerPipeWire::~BaseCapturerPipeWire() {
-  webrtc::XdgDesktopPortalBase* xdpBase = options_.xdp_base();
-  if (auto_close_connection_ || xdpBase->IsConnectionStreamingOnWeb(id_)) {
-    xdpBase->CloseConnection(id_);
+const int kBytesPerPixel = 4;
+
+#if defined(WEBRTC_DLOPEN_PIPEWIRE)
+const char kPipeWireLib[] = "libpipewire-0.2.so.1";
+#endif
+
+// static
+void BaseCapturerPipeWire::OnStateChanged(void* data,
+                                          pw_remote_state old_state,
+                                          pw_remote_state state,
+                                          const char* error_message) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
+  RTC_DCHECK(that);
+
+  switch (state) {
+    case PW_REMOTE_STATE_ERROR:
+      RTC_LOG(LS_ERROR) << "PipeWire remote state error: " << error_message;
+      break;
+    case PW_REMOTE_STATE_CONNECTED:
+      RTC_LOG(LS_INFO) << "PipeWire remote state: connected.";
+      that->CreateReceivingStream();
+      break;
+    case PW_REMOTE_STATE_CONNECTING:
+      RTC_LOG(LS_INFO) << "PipeWire remote state: connecting.";
+      break;
+    case PW_REMOTE_STATE_UNCONNECTED:
+      RTC_LOG(LS_INFO) << "PipeWire remote state: unconnected.";
+      break;
   }
 }
 
-bool BaseCapturerPipeWire::Init(const DesktopCaptureOptions& options,
-                                XdgDesktopPortalBase::CaptureSourceType type) {
-  options_ = options;
-  type_ = type;
+// static
+void BaseCapturerPipeWire::OnStreamStateChanged(void* data,
+                                                pw_stream_state old_state,
+                                                pw_stream_state state,
+                                                const char* error_message) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
+  RTC_DCHECK(that);
 
-  XdgDesktopPortalBase::CaptureSourceType requestedType_ =
-      XdgDesktopPortalBase::CaptureSourceType::kAny;
+  switch (state) {
+    case PW_STREAM_STATE_ERROR:
+      RTC_LOG(LS_ERROR) << "PipeWire stream state error: " << error_message;
+      break;
+    case PW_STREAM_STATE_CONFIGURE:
+      pw_stream_set_active(that->pw_stream_, true);
+      break;
+    case PW_STREAM_STATE_UNCONNECTED:
+    case PW_STREAM_STATE_CONNECTING:
+    case PW_STREAM_STATE_READY:
+    case PW_STREAM_STATE_PAUSED:
+    case PW_STREAM_STATE_STREAMING:
+      break;
+  }
+}
 
-  id_ = options_.request_id();
+// static
+void BaseCapturerPipeWire::OnStreamFormatChanged(void* data,
+                                                 const struct spa_pod* format) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
+  RTC_DCHECK(that);
 
-  // We need some ID to be able to identify our capturer
-  if (!id_) {
-    id_ = g_random_int_range(0, G_MAXINT);
-    auto_close_connection_ = true;
-    requestedType_ = type;
+  RTC_LOG(LS_INFO) << "PipeWire stream format changed.";
+
+  if (!format) {
+    pw_stream_finish_format(that->pw_stream_, /*res=*/0, /*params=*/nullptr,
+                            /*n_params=*/0);
+    return;
   }
 
-  webrtc::XdgDesktopPortalBase* xdpBase = options_.xdp_base();
+  that->spa_video_format_ = new spa_video_info_raw();
+  spa_format_video_raw_parse(format, that->spa_video_format_,
+                             &that->pw_type_->format_video);
 
-  if (xdpBase->IsConnectionInitialized(id_.value())) {
-    // Because capturers created for the preview dialog (Chrome, Firefox) will
-    // be created simultaneously and because of that the connection cannot be
-    // initialized yet, we can safely assume this a capturer created in the
-    // final state to show the content on the web page itself Note: this will
-    // have no effect on clients not using our specific API in
-    //       DesktopCaptureOptions
-    xdpBase->SetConnectionStreamingOnWeb(id_.value());
-    portal_initialized_ = true;
-    return true;
+  auto width = that->spa_video_format_->size.width;
+  auto height = that->spa_video_format_->size.height;
+  auto stride = SPA_ROUND_UP_N(width * kBytesPerPixel, 4);
+  auto size = height * stride;
+
+  uint8_t buffer[1024] = {};
+  auto builder = spa_pod_builder{buffer, sizeof(buffer)};
+
+  // Setup buffers and meta header for new format.
+  const struct spa_pod* params[2];
+  params[0] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
+      &builder,
+      // id to enumerate buffer requirements
+      that->pw_core_type_->param.idBuffers,
+      that->pw_core_type_->param_buffers.Buffers,
+      // Size: specified as integer (i) and set to specified size
+      ":", that->pw_core_type_->param_buffers.size, "i", size,
+      // Stride: specified as integer (i) and set to specified stride
+      ":", that->pw_core_type_->param_buffers.stride, "i", stride,
+      // Buffers: specifies how many buffers we want to deal with, set as
+      // integer (i) where preferred number is 8, then allowed number is defined
+      // as range (r) from min and max values and it is undecided (u) to allow
+      // negotiation
+      ":", that->pw_core_type_->param_buffers.buffers, "iru", 8,
+      SPA_POD_PROP_MIN_MAX(1, 32),
+      // Align: memory alignment of the buffer, set as integer (i) to specified
+      // value
+      ":", that->pw_core_type_->param_buffers.align, "i", 16));
+  params[1] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
+      &builder,
+      // id to enumerate supported metadata
+      that->pw_core_type_->param.idMeta, that->pw_core_type_->param_meta.Meta,
+      // Type: specified as id or enum (I)
+      ":", that->pw_core_type_->param_meta.type, "I",
+      that->pw_core_type_->meta.Header,
+      // Size: size of the metadata, specified as integer (i)
+      ":", that->pw_core_type_->param_meta.size, "i",
+      sizeof(struct spa_meta_header)));
+
+  pw_stream_finish_format(that->pw_stream_, /*res=*/0, params, /*n_params=*/2);
+}
+
+// static
+void BaseCapturerPipeWire::OnStreamProcess(void* data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
+  RTC_DCHECK(that);
+
+  pw_buffer* buf = nullptr;
+
+  if (!(buf = pw_stream_dequeue_buffer(that->pw_stream_))) {
+    return;
   }
 
-  auto lambda = [=](bool result) { portal_initialized_ = result; };
+  that->HandleBuffer(buf);
 
-  rtc::Callback1<void, bool> cb = lambda;
-  xdpBase->InitPortal(cb, requestedType_, id_.value());
+  pw_stream_queue_buffer(that->pw_stream_, buf);
+}
 
-  return true;
+BaseCapturerPipeWire::BaseCapturerPipeWire(CaptureSourceType source_type)
+    : capture_source_type_(source_type) {}
+
+BaseCapturerPipeWire::~BaseCapturerPipeWire() {
+  if (pw_main_loop_) {
+    pw_thread_loop_stop(pw_main_loop_);
+  }
+
+  if (pw_type_) {
+    delete pw_type_;
+  }
+
+  if (spa_video_format_) {
+    delete spa_video_format_;
+  }
+
+  if (pw_stream_) {
+    pw_stream_destroy(pw_stream_);
+  }
+
+  if (pw_remote_) {
+    pw_remote_destroy(pw_remote_);
+  }
+
+  if (pw_core_) {
+    pw_core_destroy(pw_core_);
+  }
+
+  if (pw_main_loop_) {
+    pw_thread_loop_destroy(pw_main_loop_);
+  }
+
+  if (pw_loop_) {
+    pw_loop_destroy(pw_loop_);
+  }
+
+  if (current_frame_) {
+    free(current_frame_);
+  }
+
+  if (start_request_signal_id_) {
+    g_dbus_connection_signal_unsubscribe(connection_, start_request_signal_id_);
+  }
+  if (sources_request_signal_id_) {
+    g_dbus_connection_signal_unsubscribe(connection_,
+                                         sources_request_signal_id_);
+  }
+  if (session_request_signal_id_) {
+    g_dbus_connection_signal_unsubscribe(connection_,
+                                         session_request_signal_id_);
+  }
+
+  if (session_handle_) {
+    GDBusMessage* message = g_dbus_message_new_method_call(
+        kDesktopBusName, session_handle_, kSessionInterfaceName, "Close");
+    if (message) {
+      GError* error = nullptr;
+      g_dbus_connection_send_message(connection_, message,
+                                     G_DBUS_SEND_MESSAGE_FLAGS_NONE,
+                                     /*out_serial=*/nullptr, &error);
+      if (error) {
+        RTC_LOG(LS_ERROR) << "Failed to close the session: " << error->message;
+        g_error_free(error);
+      }
+      g_object_unref(message);
+    }
+  }
+
+  g_free(start_handle_);
+  g_free(sources_handle_);
+  g_free(session_handle_);
+  g_free(portal_handle_);
+
+  if (cancellable_) {
+    g_cancellable_cancel(cancellable_);
+    g_object_unref(cancellable_);
+    cancellable_ = nullptr;
+  }
+
+  if (proxy_) {
+    g_object_unref(proxy_);
+    proxy_ = nullptr;
+  }
+}
+
+void BaseCapturerPipeWire::InitPortal() {
+  cancellable_ = g_cancellable_new();
+  g_dbus_proxy_new_for_bus(
+      G_BUS_TYPE_SESSION, G_DBUS_PROXY_FLAGS_NONE, /*info=*/nullptr,
+      kDesktopBusName, kDesktopObjectPath, kScreenCastInterfaceName,
+      cancellable_,
+      reinterpret_cast<GAsyncReadyCallback>(OnProxyRequested), this);
+}
+
+void BaseCapturerPipeWire::InitPipeWire() {
+#if defined(WEBRTC_DLOPEN_PIPEWIRE)
+  StubPathMap paths;
+
+  // Check if the PipeWire library is available.
+  paths[kModulePipewire].push_back(kPipeWireLib);
+  if (!InitializeStubs(paths)) {
+    RTC_LOG(LS_ERROR) << "Failed to load the PipeWire library and symbols.";
+    portal_init_failed_ = true;
+    return;
+  }
+#endif  // defined(WEBRTC_DLOPEN_PIPEWIRE)
+
+  pw_init(/*argc=*/nullptr, /*argc=*/nullptr);
+
+  pw_loop_ = pw_loop_new(/*properties=*/nullptr);
+  pw_main_loop_ = pw_thread_loop_new(pw_loop_, "pipewire-main-loop");
+
+  pw_core_ = pw_core_new(pw_loop_, /*properties=*/nullptr);
+  pw_core_type_ = pw_core_get_type(pw_core_);
+  pw_remote_ = pw_remote_new(pw_core_, nullptr, /*user_data_size=*/0);
+
+  InitPipeWireTypes();
+
+  // Initialize event handlers, remote end and stream-related.
+  pw_remote_events_.version = PW_VERSION_REMOTE_EVENTS;
+  pw_remote_events_.state_changed = &OnStateChanged;
+
+  pw_stream_events_.version = PW_VERSION_STREAM_EVENTS;
+  pw_stream_events_.state_changed = &OnStreamStateChanged;
+  pw_stream_events_.format_changed = &OnStreamFormatChanged;
+  pw_stream_events_.process = &OnStreamProcess;
+
+  pw_remote_add_listener(pw_remote_, &spa_remote_listener_, &pw_remote_events_,
+                         this);
+  pw_remote_connect_fd(pw_remote_, pw_fd_);
+
+  if (pw_thread_loop_start(pw_main_loop_) < 0) {
+    RTC_LOG(LS_ERROR) << "Failed to start main PipeWire loop";
+    portal_init_failed_ = true;
+  }
+
+  RTC_LOG(LS_INFO) << "PipeWire remote opened.";
+}
+
+void BaseCapturerPipeWire::InitPipeWireTypes() {
+  spa_type_map* map = pw_core_type_->map;
+  pw_type_ = new PipeWireType();
+
+  spa_type_media_type_map(map, &pw_type_->media_type);
+  spa_type_media_subtype_map(map, &pw_type_->media_subtype);
+  spa_type_format_video_map(map, &pw_type_->format_video);
+  spa_type_video_format_map(map, &pw_type_->video_format);
+}
+
+void BaseCapturerPipeWire::CreateReceivingStream() {
+  spa_rectangle pwMinScreenBounds = spa_rectangle{1, 1};
+  spa_rectangle pwScreenBounds =
+      spa_rectangle{static_cast<uint32_t>(desktop_size_.width()),
+                    static_cast<uint32_t>(desktop_size_.height())};
+
+  spa_fraction pwFrameRateMin = spa_fraction{0, 1};
+  spa_fraction pwFrameRateMax = spa_fraction{60, 1};
+
+  pw_properties* reuseProps =
+      pw_properties_new_string("pipewire.client.reuse=1");
+  pw_stream_ = pw_stream_new(pw_remote_, "webrtc-consume-stream", reuseProps);
+
+  uint8_t buffer[1024] = {};
+  const spa_pod* params[1];
+  spa_pod_builder builder = spa_pod_builder{buffer, sizeof(buffer)};
+  params[0] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
+      &builder,
+      // id to enumerate formats
+      pw_core_type_->param.idEnumFormat, pw_core_type_->spa_format, "I",
+      pw_type_->media_type.video, "I", pw_type_->media_subtype.raw,
+      // Video format: specified as id or enum (I), preferred format is BGRx,
+      // then allowed formats are enumerated (e) and the format is undecided (u)
+      // to allow negotiation
+      ":", pw_type_->format_video.format, "Ieu", pw_type_->video_format.BGRx,
+      SPA_POD_PROP_ENUM(2, pw_type_->video_format.RGBx,
+                        pw_type_->video_format.BGRx),
+      // Video size: specified as rectangle (R), preferred size is specified as
+      // first parameter, then allowed size is defined as range (r) from min and
+      // max values and the format is undecided (u) to allow negotiation
+      ":", pw_type_->format_video.size, "Rru", &pwScreenBounds, 2,
+      &pwMinScreenBounds, &pwScreenBounds,
+      // Frame rate: specified as fraction (F) and set to minimum frame rate
+      // value
+      ":", pw_type_->format_video.framerate, "F", &pwFrameRateMin,
+      // Max frame rate: specified as fraction (F), preferred frame rate is set
+      // to maximum value, then allowed frame rate is defined as range (r) from
+      // min and max values and it is undecided (u) to allow negotiation
+      ":", pw_type_->format_video.max_framerate, "Fru", &pwFrameRateMax, 2,
+      &pwFrameRateMin, &pwFrameRateMax));
+
+  pw_stream_add_listener(pw_stream_, &spa_stream_listener_, &pw_stream_events_,
+                         this);
+  pw_stream_flags flags = static_cast<pw_stream_flags>(
+      PW_STREAM_FLAG_AUTOCONNECT | PW_STREAM_FLAG_INACTIVE |
+      PW_STREAM_FLAG_MAP_BUFFERS);
+  if (pw_stream_connect(pw_stream_, PW_DIRECTION_INPUT, /*port_path=*/nullptr,
+                        flags, params,
+                        /*n_params=*/1) != 0) {
+    RTC_LOG(LS_ERROR) << "Could not connect receiving stream.";
+    portal_init_failed_ = true;
+    return;
+  }
+}
+
+void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) {
+  spa_buffer* spaBuffer = buffer->buffer;
+  void* src = nullptr;
+
+  if (!(src = spaBuffer->datas[0].data)) {
+    return;
+  }
+
+  uint32_t maxSize = spaBuffer->datas[0].maxsize;
+  int32_t srcStride = spaBuffer->datas[0].chunk->stride;
+  if (srcStride != (desktop_size_.width() * kBytesPerPixel)) {
+    RTC_LOG(LS_ERROR) << "Got buffer with stride different from screen stride: "
+                      << srcStride
+                      << " != " << (desktop_size_.width() * kBytesPerPixel);
+    portal_init_failed_ = true;
+    return;
+  }
+
+  if (!current_frame_) {
+    current_frame_ = static_cast<uint8_t*>(malloc(maxSize));
+  }
+  RTC_DCHECK(current_frame_ != nullptr);
+
+  // If both sides decided to go with the RGBx format we need to convert it to
+  // BGRx to match color format expected by WebRTC.
+  if (spa_video_format_->format == pw_type_->video_format.RGBx) {
+    uint8_t* tempFrame = static_cast<uint8_t*>(malloc(maxSize));
+    std::memcpy(tempFrame, src, maxSize);
+    ConvertRGBxToBGRx(tempFrame, maxSize);
+    std::memcpy(current_frame_, tempFrame, maxSize);
+    free(tempFrame);
+  } else {
+    std::memcpy(current_frame_, src, maxSize);
+  }
+}
+
+void BaseCapturerPipeWire::ConvertRGBxToBGRx(uint8_t* frame, uint32_t size) {
+  // Change color format for KDE KWin which uses RGBx and not BGRx
+  for (uint32_t i = 0; i < size; i += 4) {
+    uint8_t tempR = frame[i];
+    uint8_t tempB = frame[i + 2];
+    frame[i] = tempB;
+    frame[i + 2] = tempR;
+  }
+}
+
+guint BaseCapturerPipeWire::SetupRequestResponseSignal(
+    const gchar* object_path,
+    GDBusSignalCallback callback) {
+  return g_dbus_connection_signal_subscribe(
+      connection_, kDesktopBusName, kRequestInterfaceName, "Response",
+      object_path, /*arg0=*/nullptr, G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
+      callback, this, /*user_data_free_func=*/nullptr);
+}
+
+// static
+void BaseCapturerPipeWire::OnProxyRequested(GObject* /*object*/,
+                                            GAsyncResult* result,
+                                            gpointer user_data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
+  RTC_DCHECK(that);
+
+  GError* error = nullptr;
+  GDBusProxy *proxy = g_dbus_proxy_new_finish(result, &error);
+  if (!proxy) {
+    if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+      return;
+    RTC_LOG(LS_ERROR) << "Failed to create a proxy for the screen cast portal: "
+                      << error->message;
+    g_error_free(error);
+    that->portal_init_failed_ = true;
+    return;
+  }
+  that->proxy_ = proxy;
+  that->connection_ = g_dbus_proxy_get_connection(that->proxy_);
+
+  RTC_LOG(LS_INFO) << "Created proxy for the screen cast portal.";
+  that->SessionRequest();
+}
+
+// static
+gchar* BaseCapturerPipeWire::PrepareSignalHandle(GDBusConnection* connection,
+                                                 const gchar* token) {
+  gchar* sender = g_strdup(g_dbus_connection_get_unique_name(connection) + 1);
+  for (int i = 0; sender[i]; i++) {
+    if (sender[i] == '.') {
+      sender[i] = '_';
+    }
+  }
+
+  gchar* handle = g_strconcat(kDesktopRequestObjectPath, "/", sender, "/",
+                              token, /*end of varargs*/ nullptr);
+  g_free(sender);
+
+  return handle;
+}
+
+void BaseCapturerPipeWire::SessionRequest() {
+  GVariantBuilder builder;
+  gchar* variant_string;
+
+  g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
+  variant_string =
+      g_strdup_printf("webrtc_session%d", g_random_int_range(0, G_MAXINT));
+  g_variant_builder_add(&builder, "{sv}", "session_handle_token",
+                        g_variant_new_string(variant_string));
+  g_free(variant_string);
+  variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
+  g_variant_builder_add(&builder, "{sv}", "handle_token",
+                        g_variant_new_string(variant_string));
+
+  portal_handle_ = PrepareSignalHandle(connection_, variant_string);
+  session_request_signal_id_ = SetupRequestResponseSignal(
+      portal_handle_, OnSessionRequestResponseSignal);
+  g_free(variant_string);
+
+  RTC_LOG(LS_INFO) << "Screen cast session requested.";
+  g_dbus_proxy_call(
+      proxy_, "CreateSession", g_variant_new("(a{sv})", &builder),
+      G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
+      reinterpret_cast<GAsyncReadyCallback>(OnSessionRequested), this);
+}
+
+// static
+void BaseCapturerPipeWire::OnSessionRequested(GDBusProxy *proxy,
+                                              GAsyncResult* result,
+                                              gpointer user_data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
+  RTC_DCHECK(that);
+
+  GError* error = nullptr;
+  GVariant* variant = g_dbus_proxy_call_finish(proxy, result, &error);
+  if (!variant) {
+    if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+      return;
+    RTC_LOG(LS_ERROR) << "Failed to create a screen cast session: "
+                      << error->message;
+    g_error_free(error);
+    that->portal_init_failed_ = true;
+    return;
+  }
+  RTC_LOG(LS_INFO) << "Initializing the screen cast session.";
+
+  gchar* handle = nullptr;
+  g_variant_get_child(variant, 0, "o", &handle);
+  g_variant_unref(variant);
+  if (!handle) {
+    RTC_LOG(LS_ERROR) << "Failed to initialize the screen cast session.";
+    if (that->session_request_signal_id_) {
+      g_dbus_connection_signal_unsubscribe(that->connection_,
+                                           that->session_request_signal_id_);
+      that->session_request_signal_id_ = 0;
+    }
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  g_free(handle);
+
+  RTC_LOG(LS_INFO) << "Subscribing to the screen cast session.";
+}
+
+// static
+void BaseCapturerPipeWire::OnSessionRequestResponseSignal(
+    GDBusConnection* connection,
+    const gchar* sender_name,
+    const gchar* object_path,
+    const gchar* interface_name,
+    const gchar* signal_name,
+    GVariant* parameters,
+    gpointer user_data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
+  RTC_DCHECK(that);
+
+  RTC_LOG(LS_INFO)
+      << "Received response for the screen cast session subscription.";
+
+  guint32 portal_response;
+  GVariant* response_data;
+  g_variant_get(parameters, "(u@a{sv})", &portal_response, &response_data);
+  g_variant_lookup(response_data, "session_handle", "s",
+                   &that->session_handle_);
+  g_variant_unref(response_data);
+
+  if (!that->session_handle_ || portal_response) {
+    RTC_LOG(LS_ERROR)
+        << "Failed to request the screen cast session subscription.";
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  that->SourcesRequest();
+}
+
+void BaseCapturerPipeWire::SourcesRequest() {
+  GVariantBuilder builder;
+  gchar* variant_string;
+
+  g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
+  // We want to record monitor content.
+  g_variant_builder_add(&builder, "{sv}", "types",
+                        g_variant_new_uint32(capture_source_type_));
+  // We don't want to allow selection of multiple sources.
+  g_variant_builder_add(&builder, "{sv}", "multiple",
+                        g_variant_new_boolean(false));
+  variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
+  g_variant_builder_add(&builder, "{sv}", "handle_token",
+                        g_variant_new_string(variant_string));
+
+  sources_handle_ = PrepareSignalHandle(connection_, variant_string);
+  sources_request_signal_id_ = SetupRequestResponseSignal(
+      sources_handle_, OnSourcesRequestResponseSignal);
+  g_free(variant_string);
+
+  RTC_LOG(LS_INFO) << "Requesting sources from the screen cast session.";
+  g_dbus_proxy_call(
+      proxy_, "SelectSources",
+      g_variant_new("(oa{sv})", session_handle_, &builder),
+      G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
+      reinterpret_cast<GAsyncReadyCallback>(OnSourcesRequested), this);
+}
+
+// static
+void BaseCapturerPipeWire::OnSourcesRequested(GDBusProxy *proxy,
+                                              GAsyncResult* result,
+                                              gpointer user_data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
+  RTC_DCHECK(that);
+
+  GError* error = nullptr;
+  GVariant* variant = g_dbus_proxy_call_finish(proxy, result, &error);
+  if (!variant) {
+    if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+      return;
+    RTC_LOG(LS_ERROR) << "Failed to request the sources: " << error->message;
+    g_error_free(error);
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  RTC_LOG(LS_INFO) << "Sources requested from the screen cast session.";
+
+  gchar* handle = nullptr;
+  g_variant_get_child(variant, 0, "o", &handle);
+  g_variant_unref(variant);
+  if (!handle) {
+    RTC_LOG(LS_ERROR) << "Failed to initialize the screen cast session.";
+    if (that->sources_request_signal_id_) {
+      g_dbus_connection_signal_unsubscribe(that->connection_,
+                                           that->sources_request_signal_id_);
+      that->sources_request_signal_id_ = 0;
+    }
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  g_free(handle);
+
+  RTC_LOG(LS_INFO) << "Subscribed to sources signal.";
+}
+
+// static
+void BaseCapturerPipeWire::OnSourcesRequestResponseSignal(
+    GDBusConnection* connection,
+    const gchar* sender_name,
+    const gchar* object_path,
+    const gchar* interface_name,
+    const gchar* signal_name,
+    GVariant* parameters,
+    gpointer user_data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
+  RTC_DCHECK(that);
+
+  RTC_LOG(LS_INFO) << "Received sources signal from session.";
+
+  guint32 portal_response;
+  g_variant_get(parameters, "(u@a{sv})", &portal_response, nullptr);
+  if (portal_response) {
+    RTC_LOG(LS_ERROR)
+        << "Failed to select sources for the screen cast session.";
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  that->StartRequest();
+}
+
+void BaseCapturerPipeWire::StartRequest() {
+  GVariantBuilder builder;
+  gchar* variant_string;
+
+  g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
+  variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
+  g_variant_builder_add(&builder, "{sv}", "handle_token",
+                        g_variant_new_string(variant_string));
+
+  start_handle_ = PrepareSignalHandle(connection_, variant_string);
+  start_request_signal_id_ =
+      SetupRequestResponseSignal(start_handle_, OnStartRequestResponseSignal);
+  g_free(variant_string);
+
+  // "Identifier for the application window", this is Wayland, so not "x11:...".
+  const gchar parent_window[] = "";
+
+  RTC_LOG(LS_INFO) << "Starting the screen cast session.";
+  g_dbus_proxy_call(
+      proxy_, "Start",
+      g_variant_new("(osa{sv})", session_handle_, parent_window, &builder),
+      G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
+      reinterpret_cast<GAsyncReadyCallback>(OnStartRequested), this);
+}
+
+// static
+void BaseCapturerPipeWire::OnStartRequested(GDBusProxy *proxy,
+                                            GAsyncResult* result,
+                                            gpointer user_data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
+  RTC_DCHECK(that);
+
+  GError* error = nullptr;
+  GVariant* variant = g_dbus_proxy_call_finish(proxy, result, &error);
+  if (!variant) {
+    if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+      return;
+    RTC_LOG(LS_ERROR) << "Failed to start the screen cast session: "
+                      << error->message;
+    g_error_free(error);
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  RTC_LOG(LS_INFO) << "Initializing the start of the screen cast session.";
+
+  gchar* handle = nullptr;
+  g_variant_get_child(variant, 0, "o", &handle);
+  g_variant_unref(variant);
+  if (!handle) {
+    RTC_LOG(LS_ERROR)
+        << "Failed to initialize the start of the screen cast session.";
+    if (that->start_request_signal_id_) {
+      g_dbus_connection_signal_unsubscribe(that->connection_,
+                                           that->start_request_signal_id_);
+      that->start_request_signal_id_ = 0;
+    }
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  g_free(handle);
+
+  RTC_LOG(LS_INFO) << "Subscribed to the start signal.";
+}
+
+// static
+void BaseCapturerPipeWire::OnStartRequestResponseSignal(
+    GDBusConnection* connection,
+    const gchar* sender_name,
+    const gchar* object_path,
+    const gchar* interface_name,
+    const gchar* signal_name,
+    GVariant* parameters,
+    gpointer user_data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
+  RTC_DCHECK(that);
+
+  RTC_LOG(LS_INFO) << "Start signal received.";
+  guint32 portal_response;
+  GVariant* response_data;
+  GVariantIter* iter = nullptr;
+  g_variant_get(parameters, "(u@a{sv})", &portal_response, &response_data);
+  if (portal_response || !response_data) {
+    RTC_LOG(LS_ERROR) << "Failed to start the screen cast session.";
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  // Array of PipeWire streams. See
+  // https://github.com/flatpak/xdg-desktop-portal/blob/master/data/org.freedesktop.portal.ScreenCast.xml
+  // documentation for <method name="Start">.
+  if (g_variant_lookup(response_data, "streams", "a(ua{sv})", &iter)) {
+    GVariant* variant;
+
+    while (g_variant_iter_next(iter, "@(ua{sv})", &variant)) {
+      guint32 stream_id;
+      gint32 width;
+      gint32 height;
+      GVariant* options;
+
+      g_variant_get(variant, "(u@a{sv})", &stream_id, &options);
+      RTC_DCHECK(options != nullptr);
+
+      g_variant_lookup(options, "size", "(ii)", &width, &height);
+
+      that->desktop_size_.set(width, height);
+
+      g_variant_unref(options);
+      g_variant_unref(variant);
+    }
+  }
+  g_variant_iter_free(iter);
+  g_variant_unref(response_data);
+
+  that->OpenPipeWireRemote();
+}
+
+void BaseCapturerPipeWire::OpenPipeWireRemote() {
+  GVariantBuilder builder;
+  g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
+
+  RTC_LOG(LS_INFO) << "Opening the PipeWire remote.";
+
+  g_dbus_proxy_call_with_unix_fd_list(
+      proxy_, "OpenPipeWireRemote",
+      g_variant_new("(oa{sv})", session_handle_, &builder),
+      G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, /*fd_list=*/nullptr,
+      cancellable_,
+      reinterpret_cast<GAsyncReadyCallback>(OnOpenPipeWireRemoteRequested),
+      this);
+}
+
+// static
+void BaseCapturerPipeWire::OnOpenPipeWireRemoteRequested(
+    GDBusProxy *proxy,
+    GAsyncResult* result,
+    gpointer user_data) {
+  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
+  RTC_DCHECK(that);
+
+  GError* error = nullptr;
+  GUnixFDList* outlist = nullptr;
+  GVariant* variant = g_dbus_proxy_call_with_unix_fd_list_finish(
+      proxy, &outlist, result, &error);
+  if (!variant) {
+    if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+      return;
+    RTC_LOG(LS_ERROR) << "Failed to open the PipeWire remote: "
+                      << error->message;
+    g_error_free(error);
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  gint32 index;
+  g_variant_get(variant, "(h)", &index);
+
+  if ((that->pw_fd_ = g_unix_fd_list_get(outlist, index, &error)) == -1) {
+    RTC_LOG(LS_ERROR) << "Failed to get file descriptor from the list: "
+                      << error->message;
+    g_error_free(error);
+    g_variant_unref(variant);
+    that->portal_init_failed_ = true;
+    return;
+  }
+
+  g_variant_unref(variant);
+  g_object_unref(outlist);
+
+  that->InitPipeWire();
 }
 
 void BaseCapturerPipeWire::Start(Callback* callback) {
   RTC_DCHECK(!callback_);
   RTC_DCHECK(callback);
 
+  InitPortal();
+
   callback_ = callback;
 }
 
 void BaseCapturerPipeWire::CaptureFrame() {
-  if (!portal_initialized_) {
-    callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
-    return;
-  }
-
-  webrtc::XdgDesktopPortalBase* xdpBase = options_.xdp_base();
-  if (type_ != XdgDesktopPortalBase::CaptureSourceType::kAny &&
-      xdpBase->GetConnectionData(id_)->capture_source_type_ != type_ &&
-      xdpBase->GetConnectionData(id_)->capture_source_type_ !=
-          XdgDesktopPortalBase::CaptureSourceType::kAny) {
+  if (portal_init_failed_) {
     callback_->OnCaptureResult(Result::ERROR_PERMANENT, nullptr);
     return;
   }
 
-  const webrtc::PipeWireBase* pwBase = xdpBase->GetPipeWireBase(id_);
-
-  if (!pwBase) {
-    callback_->OnCaptureResult(Result::ERROR_PERMANENT, nullptr);
-    return;
-  }
-
-  if (!pwBase->Frame()) {
+  if (!current_frame_) {
     callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
     return;
   }
 
-  const DesktopSize frame_size = pwBase->FrameSize();
-
-  std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(frame_size));
+  std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(desktop_size_));
   result->CopyPixelsFrom(
-      pwBase->Frame(), (frame_size.width() * 4),  // kBytesPerPixel = 4
-      DesktopRect::MakeWH(frame_size.width(), frame_size.height()));
-
+      current_frame_, (desktop_size_.width() * kBytesPerPixel),
+      DesktopRect::MakeWH(desktop_size_.width(), desktop_size_.height()));
   if (!result) {
     callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
     return;
@@ -130,36 +887,4 @@
   return true;
 }
 
-// static
-std::unique_ptr<DesktopCapturer> BaseCapturerPipeWire::CreateRawScreenCapturer(
-    const DesktopCaptureOptions& options) {
-  if (!options.xdp_base())
-    return nullptr;
-
-  std::unique_ptr<BaseCapturerPipeWire> capturer =
-      std::make_unique<BaseCapturerPipeWire>();
-  if (!capturer->Init(options,
-                      XdgDesktopPortalBase::CaptureSourceType::kScreen)) {
-    return nullptr;
-  }
-
-  return std::move(capturer);
-}
-
-// static
-std::unique_ptr<DesktopCapturer> BaseCapturerPipeWire::CreateRawWindowCapturer(
-    const DesktopCaptureOptions& options) {
-  if (!options.xdp_base())
-    return nullptr;
-
-  std::unique_ptr<BaseCapturerPipeWire> capturer =
-      std::make_unique<BaseCapturerPipeWire>();
-  if (!capturer->Init(options,
-                      XdgDesktopPortalBase::CaptureSourceType::kWindow)) {
-    return nullptr;
-  }
-
-  return std::move(capturer);
-}
-
 }  // namespace webrtc
diff --git a/modules/desktop_capture/linux/base_capturer_pipewire.h b/modules/desktop_capture/linux/base_capturer_pipewire.h
index 849b283..f28d7a5 100644
--- a/modules/desktop_capture/linux/base_capturer_pipewire.h
+++ b/modules/desktop_capture/linux/base_capturer_pipewire.h
@@ -11,43 +11,156 @@
 #ifndef MODULES_DESKTOP_CAPTURE_LINUX_BASE_CAPTURER_PIPEWIRE_H_
 #define MODULES_DESKTOP_CAPTURE_LINUX_BASE_CAPTURER_PIPEWIRE_H_
 
+#include <gio/gio.h>
+#define typeof __typeof__
+#include <pipewire/pipewire.h>
+#include <spa/param/video/format-utils.h>
+
 #include "modules/desktop_capture/desktop_capture_options.h"
 #include "modules/desktop_capture/desktop_capturer.h"
-#include "modules/desktop_capture/linux/xdg_desktop_portal_base.h"
-
-#include "api/ref_counted_base.h"
 #include "rtc_base/constructor_magic.h"
 
 namespace webrtc {
 
-class RTC_EXPORT BaseCapturerPipeWire : public DesktopCapturer {
+class PipeWireType {
  public:
-  explicit BaseCapturerPipeWire();
+  spa_type_media_type media_type;
+  spa_type_media_subtype media_subtype;
+  spa_type_format_video format_video;
+  spa_type_video_format video_format;
+};
+
+class BaseCapturerPipeWire : public DesktopCapturer {
+ public:
+  enum CaptureSourceType { Screen = 1, Window };
+
+  explicit BaseCapturerPipeWire(CaptureSourceType source_type);
   ~BaseCapturerPipeWire() override;
 
-  bool Init(const DesktopCaptureOptions& options,
-            XdgDesktopPortalBase::CaptureSourceType type);
-
+  // DesktopCapturer interface.
   void Start(Callback* delegate) override;
   void CaptureFrame() override;
   bool GetSourceList(SourceList* sources) override;
   bool SelectSource(SourceId id) override;
 
-  static std::unique_ptr<DesktopCapturer> CreateRawScreenCapturer(
-      const DesktopCaptureOptions& options);
-
-  static std::unique_ptr<DesktopCapturer> CreateRawWindowCapturer(
-      const DesktopCaptureOptions& options);
-
  private:
+  // PipeWire types -->
+  pw_core* pw_core_ = nullptr;
+  pw_type* pw_core_type_ = nullptr;
+  pw_stream* pw_stream_ = nullptr;
+  pw_remote* pw_remote_ = nullptr;
+  pw_loop* pw_loop_ = nullptr;
+  pw_thread_loop* pw_main_loop_ = nullptr;
+  PipeWireType* pw_type_ = nullptr;
+
+  spa_hook spa_stream_listener_ = {};
+  spa_hook spa_remote_listener_ = {};
+
+  pw_stream_events pw_stream_events_ = {};
+  pw_remote_events pw_remote_events_ = {};
+
+  spa_video_info_raw* spa_video_format_ = nullptr;
+
+  gint32 pw_fd_ = -1;
+
+  CaptureSourceType capture_source_type_ =
+      BaseCapturerPipeWire::CaptureSourceType::Screen;
+
+  // <-- end of PipeWire types
+
+  GDBusConnection* connection_ = nullptr;
+  GDBusProxy* proxy_ = nullptr;
+  GCancellable *cancellable_ = nullptr;
+  gchar* portal_handle_ = nullptr;
+  gchar* session_handle_ = nullptr;
+  gchar* sources_handle_ = nullptr;
+  gchar* start_handle_ = nullptr;
+  guint session_request_signal_id_ = 0;
+  guint sources_request_signal_id_ = 0;
+  guint start_request_signal_id_ = 0;
+
+  DesktopSize desktop_size_ = {};
   DesktopCaptureOptions options_ = {};
+
+  uint8_t* current_frame_ = nullptr;
   Callback* callback_ = nullptr;
 
-  XdgDesktopPortalBase::CaptureSourceType type_ =
-      XdgDesktopPortalBase::CaptureSourceType::kScreen;
-  absl::optional<int32_t> id_;
-  bool auto_close_connection_ = false;
-  bool portal_initialized_ = false;
+  bool portal_init_failed_ = false;
+
+  void InitPortal();
+  void InitPipeWire();
+  void InitPipeWireTypes();
+
+  void CreateReceivingStream();
+  void HandleBuffer(pw_buffer* buffer);
+
+  void ConvertRGBxToBGRx(uint8_t* frame, uint32_t size);
+
+  static void OnStateChanged(void* data,
+                             pw_remote_state old_state,
+                             pw_remote_state state,
+                             const char* error);
+  static void OnStreamStateChanged(void* data,
+                                   pw_stream_state old_state,
+                                   pw_stream_state state,
+                                   const char* error_message);
+
+  static void OnStreamFormatChanged(void* data, const struct spa_pod* format);
+  static void OnStreamProcess(void* data);
+  static void OnNewBuffer(void* data, uint32_t id);
+
+  guint SetupRequestResponseSignal(const gchar* object_path,
+                                   GDBusSignalCallback callback);
+
+  static void OnProxyRequested(GObject* object,
+                               GAsyncResult* result,
+                               gpointer user_data);
+
+  static gchar* PrepareSignalHandle(GDBusConnection* connection,
+                                    const gchar* token);
+
+  void SessionRequest();
+  static void OnSessionRequested(GDBusProxy *proxy,
+                                 GAsyncResult* result,
+                                 gpointer user_data);
+  static void OnSessionRequestResponseSignal(GDBusConnection* connection,
+                                             const gchar* sender_name,
+                                             const gchar* object_path,
+                                             const gchar* interface_name,
+                                             const gchar* signal_name,
+                                             GVariant* parameters,
+                                             gpointer user_data);
+
+  void SourcesRequest();
+  static void OnSourcesRequested(GDBusProxy *proxy,
+                                 GAsyncResult* result,
+                                 gpointer user_data);
+  static void OnSourcesRequestResponseSignal(GDBusConnection* connection,
+                                             const gchar* sender_name,
+                                             const gchar* object_path,
+                                             const gchar* interface_name,
+                                             const gchar* signal_name,
+                                             GVariant* parameters,
+                                             gpointer user_data);
+
+  void StartRequest();
+  static void OnStartRequested(GDBusProxy *proxy,
+                               GAsyncResult* result,
+                               gpointer user_data);
+  static void OnStartRequestResponseSignal(GDBusConnection* connection,
+                                           const gchar* sender_name,
+                                           const gchar* object_path,
+                                           const gchar* interface_name,
+                                           const gchar* signal_name,
+                                           GVariant* parameters,
+                                           gpointer user_data);
+
+  void OpenPipeWireRemote();
+  static void OnOpenPipeWireRemoteRequested(GDBusProxy *proxy,
+                                            GAsyncResult* result,
+                                            gpointer user_data);
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(BaseCapturerPipeWire);
 };
 
 }  // namespace webrtc
diff --git a/modules/desktop_capture/linux/pipewire.sigs b/modules/desktop_capture/linux/pipewire.sigs
index e915bc9..3e21e9d 100644
--- a/modules/desktop_capture/linux/pipewire.sigs
+++ b/modules/desktop_capture/linux/pipewire.sigs
@@ -42,5 +42,3 @@
 pw_thread_loop * pw_thread_loop_new(pw_loop *loop, const char *name);
 int pw_thread_loop_start(pw_thread_loop *loop);
 void pw_thread_loop_stop(pw_thread_loop *loop);
-void pw_thread_loop_lock(struct pw_thread_loop *loop);
-void pw_thread_loop_unlock(struct pw_thread_loop *loop);
diff --git a/modules/desktop_capture/linux/pipewire_base.cc b/modules/desktop_capture/linux/pipewire_base.cc
deleted file mode 100644
index a59bb38..0000000
--- a/modules/desktop_capture/linux/pipewire_base.cc
+++ /dev/null
@@ -1,502 +0,0 @@
-/*
- *  Copyright 2020 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 "modules/desktop_capture/linux/pipewire_base.h"
-
-#include <glib/gprintf.h>
-
-#include <spa/param/format-utils.h>
-#include <spa/param/props.h>
-#include <spa/param/video/raw-utils.h>
-#include <spa/support/type-map.h>
-
-#include <linux/dma-buf.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/syscall.h>
-
-#include "absl/memory/memory.h"
-#include "modules/desktop_capture/desktop_capture_options.h"
-#include "rtc_base/checks.h"
-#include "rtc_base/logging.h"
-
-#if defined(WEBRTC_DLOPEN_PIPEWIRE)
-#include "modules/desktop_capture/linux/pipewire_stubs.h"
-
-using modules_desktop_capture_linux::InitializeStubs;
-using modules_desktop_capture_linux::kModulePipewire;
-using modules_desktop_capture_linux::StubPathMap;
-#endif  // defined(WEBRTC_DLOPEN_PIPEWIRE)
-
-namespace webrtc {
-
-const int kBytesPerPixel = 4;
-
-#if defined(WEBRTC_DLOPEN_PIPEWIRE)
-const char kPipeWireLib[] = "libpipewire-0.2.so.1";
-#endif
-
-// static
-void PipeWireBase::SyncDmaBuf(int fd, uint64_t start_or_end) {
-  struct dma_buf_sync sync = {0};
-
-  sync.flags = start_or_end | DMA_BUF_SYNC_READ;
-
-  while (true) {
-    int ret;
-    ret = ioctl(fd, DMA_BUF_IOCTL_SYNC, &sync);
-    if (ret == -1 && errno == EINTR) {
-      continue;
-    } else if (ret == -1) {
-      RTC_LOG(LS_ERROR) << "Failed to synchronize DMA buffer: "
-                        << g_strerror(errno);
-      break;
-    } else {
-      break;
-    }
-  }
-}
-
-// static
-void PipeWireBase::OnStateChanged(void* data,
-                                  pw_remote_state old_state,
-                                  pw_remote_state state,
-                                  const char* error_message) {
-  PipeWireBase* that = static_cast<PipeWireBase*>(data);
-  RTC_DCHECK(that);
-
-  switch (state) {
-    case PW_REMOTE_STATE_ERROR:
-      RTC_LOG(LS_ERROR) << "PipeWire remote state error: " << error_message;
-      break;
-    case PW_REMOTE_STATE_CONNECTED:
-      RTC_LOG(LS_INFO) << "PipeWire remote state: connected.";
-      that->CreateReceivingStream();
-      break;
-    case PW_REMOTE_STATE_CONNECTING:
-      RTC_LOG(LS_INFO) << "PipeWire remote state: connecting.";
-      break;
-    case PW_REMOTE_STATE_UNCONNECTED:
-      RTC_LOG(LS_INFO) << "PipeWire remote state: unconnected.";
-      break;
-  }
-}
-
-// static
-void PipeWireBase::OnStreamStateChanged(void* data,
-                                        pw_stream_state old_state,
-                                        pw_stream_state state,
-                                        const char* error_message) {
-  PipeWireBase* that = static_cast<PipeWireBase*>(data);
-  RTC_DCHECK(that);
-
-  switch (state) {
-    case PW_STREAM_STATE_ERROR:
-      RTC_LOG(LS_ERROR) << "PipeWire stream state error: " << error_message;
-      break;
-    case PW_STREAM_STATE_CONFIGURE:
-      pw_stream_set_active(that->pw_stream_, true);
-      break;
-    case PW_STREAM_STATE_UNCONNECTED:
-    case PW_STREAM_STATE_CONNECTING:
-    case PW_STREAM_STATE_READY:
-    case PW_STREAM_STATE_PAUSED:
-    case PW_STREAM_STATE_STREAMING:
-      break;
-  }
-}
-
-// static
-void PipeWireBase::OnStreamFormatChanged(void* data,
-                                         const struct spa_pod* format) {
-  PipeWireBase* that = static_cast<PipeWireBase*>(data);
-  RTC_DCHECK(that);
-
-  RTC_LOG(LS_INFO) << "PipeWire stream format changed.";
-
-  if (!format) {
-    pw_stream_finish_format(that->pw_stream_, /*res=*/0, /*params=*/nullptr,
-                            /*n_params=*/0);
-    return;
-  }
-
-  that->spa_video_format_ = new spa_video_info_raw();
-  spa_format_video_raw_parse(format, that->spa_video_format_,
-                             &that->pw_type_->format_video);
-
-  auto width = that->spa_video_format_->size.width;
-  auto height = that->spa_video_format_->size.height;
-  auto stride = SPA_ROUND_UP_N(width * kBytesPerPixel, 4);
-  auto size = height * stride;
-
-  that->desktop_size_ = DesktopSize(width, height);
-
-  uint8_t buffer[1024] = {};
-  auto builder = spa_pod_builder{buffer, sizeof(buffer)};
-
-  // Setup buffers and meta header for new format.
-  const struct spa_pod* params[3];
-  params[0] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
-      &builder,
-      // id to enumerate buffer requirements
-      that->pw_core_type_->param.idBuffers,
-      that->pw_core_type_->param_buffers.Buffers,
-      // Size: specified as integer (i) and set to specified size
-      ":", that->pw_core_type_->param_buffers.size, "i", size,
-      // Stride: specified as integer (i) and set to specified stride
-      ":", that->pw_core_type_->param_buffers.stride, "i", stride,
-      // Buffers: specifies how many buffers we want to deal with, set as
-      // integer (i) where preferred number is 8, then allowed number is defined
-      // as range (r) from min and max values and it is undecided (u) to allow
-      // negotiation
-      ":", that->pw_core_type_->param_buffers.buffers, "iru", 8,
-      SPA_POD_PROP_MIN_MAX(1, 32),
-      // Align: memory alignment of the buffer, set as integer (i) to specified
-      // value
-      ":", that->pw_core_type_->param_buffers.align, "i", 16));
-  params[1] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
-      &builder,
-      // id to enumerate supported metadata
-      that->pw_core_type_->param.idMeta, that->pw_core_type_->param_meta.Meta,
-      // Type: specified as id or enum (I)
-      ":", that->pw_core_type_->param_meta.type, "I",
-      that->pw_core_type_->meta.Header,
-      // Size: size of the metadata, specified as integer (i)
-      ":", that->pw_core_type_->param_meta.size, "i",
-      sizeof(struct spa_meta_header)));
-  params[2] = reinterpret_cast<spa_pod*>(
-      spa_pod_builder_object(&builder, that->pw_core_type_->param.idMeta,
-                             that->pw_core_type_->param_meta.Meta, ":",
-                             that->pw_core_type_->param_meta.type, "I",
-                             that->pw_core_type_->meta.VideoCrop, ":",
-                             that->pw_core_type_->param_meta.size, "i",
-                             sizeof(struct spa_meta_video_crop)));
-  pw_stream_finish_format(that->pw_stream_, /*res=*/0, params, /*n_params=*/3);
-}
-
-// static
-void PipeWireBase::OnStreamProcess(void* data) {
-  PipeWireBase* that = static_cast<PipeWireBase*>(data);
-  RTC_DCHECK(that);
-
-  struct pw_buffer* next_buffer;
-  struct pw_buffer* buffer = nullptr;
-
-  next_buffer = pw_stream_dequeue_buffer(that->pw_stream_);
-  while (next_buffer) {
-    buffer = next_buffer;
-    next_buffer = pw_stream_dequeue_buffer(that->pw_stream_);
-
-    if (next_buffer) {
-      pw_stream_queue_buffer(that->pw_stream_, buffer);
-    }
-  }
-
-  if (!buffer) {
-    return;
-  }
-
-  that->HandleBuffer(buffer);
-
-  pw_stream_queue_buffer(that->pw_stream_, buffer);
-}
-
-PipeWireBase::PipeWireBase(int32_t fd) {
-#if defined(WEBRTC_DLOPEN_PIPEWIRE)
-  StubPathMap paths;
-
-  // Check if the PipeWire library is available.
-  paths[kModulePipewire].push_back(kPipeWireLib);
-  if (!InitializeStubs(paths)) {
-    RTC_LOG(LS_ERROR) << "Failed to load the PipeWire library and symbols.";
-    pipewire_init_failed_ = true;
-    return;
-  }
-#endif  // defined(WEBRTC_DLOPEN_PIPEWIRE)
-
-  pw_init(/*argc=*/nullptr, /*argc=*/nullptr);
-
-  pw_loop_ = pw_loop_new(/*properties=*/nullptr);
-  pw_main_loop_ = pw_thread_loop_new(pw_loop_, "pipewire-main-loop");
-
-  pw_thread_loop_lock(pw_main_loop_);
-
-  pw_core_ = pw_core_new(pw_loop_, /*properties=*/nullptr);
-  pw_core_type_ = pw_core_get_type(pw_core_);
-  pw_remote_ = pw_remote_new(pw_core_, nullptr, /*user_data_size=*/0);
-
-  InitPipeWireTypes();
-
-  // Initialize event handlers, remote end and stream-related.
-  pw_remote_events_.version = PW_VERSION_REMOTE_EVENTS;
-  pw_remote_events_.state_changed = &OnStateChanged;
-
-  pw_stream_events_.version = PW_VERSION_STREAM_EVENTS;
-  pw_stream_events_.state_changed = &OnStreamStateChanged;
-  pw_stream_events_.format_changed = &OnStreamFormatChanged;
-  pw_stream_events_.process = &OnStreamProcess;
-
-  pw_remote_add_listener(pw_remote_, &spa_remote_listener_, &pw_remote_events_,
-                         this);
-  pw_remote_connect_fd(pw_remote_, fd);
-
-  if (pw_thread_loop_start(pw_main_loop_) < 0) {
-    RTC_LOG(LS_ERROR) << "Failed to start main PipeWire loop";
-    pipewire_init_failed_ = true;
-  }
-
-  pw_thread_loop_unlock(pw_main_loop_);
-
-  RTC_LOG(LS_INFO) << "PipeWire remote opened.";
-}
-
-PipeWireBase::~PipeWireBase() {
-  if (pw_main_loop_) {
-    pw_thread_loop_stop(pw_main_loop_);
-  }
-
-  if (pw_type_) {
-    delete pw_type_;
-  }
-
-  if (spa_video_format_) {
-    delete spa_video_format_;
-  }
-
-  if (pw_stream_) {
-    pw_stream_destroy(pw_stream_);
-  }
-
-  if (pw_remote_) {
-    pw_remote_destroy(pw_remote_);
-  }
-
-  if (pw_core_) {
-    pw_core_destroy(pw_core_);
-  }
-
-  if (pw_main_loop_) {
-    pw_thread_loop_destroy(pw_main_loop_);
-  }
-
-  if (pw_loop_) {
-    pw_loop_destroy(pw_loop_);
-  }
-}
-
-uint8_t* PipeWireBase::Frame() const {
-  if (!current_frame_) {
-    return nullptr;
-  }
-
-  return current_frame_.get();
-}
-
-DesktopSize PipeWireBase::FrameSize() const {
-  return video_crop_size_.value_or(desktop_size_);
-}
-
-void PipeWireBase::InitPipeWireTypes() {
-  spa_type_map* map = pw_core_type_->map;
-  pw_type_ = new PipeWireType();
-
-  spa_type_media_type_map(map, &pw_type_->media_type);
-  spa_type_media_subtype_map(map, &pw_type_->media_subtype);
-  spa_type_format_video_map(map, &pw_type_->format_video);
-  spa_type_video_format_map(map, &pw_type_->video_format);
-}
-
-void PipeWireBase::CreateReceivingStream() {
-  spa_rectangle pwMinScreenBounds = spa_rectangle{1, 1};
-  spa_rectangle pwMaxScreenBounds = spa_rectangle{INT32_MAX, INT32_MAX};
-
-  pw_properties* reuseProps =
-      pw_properties_new_string("pipewire.client.reuse=1");
-  pw_stream_ = pw_stream_new(pw_remote_, "webrtc-consume-stream", reuseProps);
-
-  uint8_t buffer[1024] = {};
-  const spa_pod* params[1];
-  spa_pod_builder builder = spa_pod_builder{buffer, sizeof(buffer)};
-  params[0] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
-      &builder,
-      // id to enumerate formats
-      pw_core_type_->param.idEnumFormat, pw_core_type_->spa_format, "I",
-      pw_type_->media_type.video, "I", pw_type_->media_subtype.raw,
-      // Video format: specified as id or enum (I), preferred format is BGRx,
-      // then allowed formats are enumerated (e) and the format is undecided (u)
-      // to allow negotiation
-      ":", pw_type_->format_video.format, "Ieu", pw_type_->video_format.BGRx,
-      SPA_POD_PROP_ENUM(
-          4, pw_type_->video_format.RGBx, pw_type_->video_format.BGRx,
-          pw_type_->video_format.RGBA, pw_type_->video_format.BGRA),
-      // Video size: specified as rectangle (R), preferred size is specified as
-      // first parameter, then allowed size is defined as range (r) from min and
-      // max values and the format is undecided (u) to allow negotiation
-      ":", pw_type_->format_video.size, "Rru", &pwMinScreenBounds,
-      SPA_POD_PROP_MIN_MAX(&pwMinScreenBounds, &pwMaxScreenBounds)));
-
-  pw_stream_add_listener(pw_stream_, &spa_stream_listener_, &pw_stream_events_,
-                         this);
-  pw_stream_flags flags = static_cast<pw_stream_flags>(
-      PW_STREAM_FLAG_AUTOCONNECT | PW_STREAM_FLAG_INACTIVE);
-  if (pw_stream_connect(pw_stream_, PW_DIRECTION_INPUT, /*port_path=*/nullptr,
-                        flags, params,
-                        /*n_params=*/1) != 0) {
-    RTC_LOG(LS_ERROR) << "Could not connect receiving stream.";
-    pipewire_init_failed_ = true;
-    return;
-  }
-}
-
-void PipeWireBase::HandleBuffer(pw_buffer* buffer) {
-  struct spa_meta_video_crop* video_crop;
-  spa_buffer* spaBuffer = buffer->buffer;
-  uint8_t* map = nullptr;
-  uint8_t* src = nullptr;
-  uint8_t* dst = nullptr;
-
-  if (spaBuffer->datas[0].chunk->size == 0) {
-    map = nullptr;
-    src = nullptr;
-  } else if (spaBuffer->datas[0].type == pw_core_type_->data.MemFd) {
-    map = static_cast<uint8_t*>(mmap(
-        nullptr, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
-        PROT_READ, MAP_PRIVATE, spaBuffer->datas[0].fd, 0));
-
-    if (map == MAP_FAILED) {
-      RTC_LOG(LS_ERROR) << "Failed to mmap the memory: "
-                        << std::strerror(errno);
-      return;
-    }
-
-    src = SPA_MEMBER(map, spaBuffer->datas[0].mapoffset, uint8_t);
-  } else if (spaBuffer->datas[0].type == pw_core_type_->data.DmaBuf) {
-    int fd;
-    fd = spaBuffer->datas[0].fd;
-
-    map = static_cast<uint8_t*>(mmap(
-        nullptr, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
-        PROT_READ, MAP_PRIVATE, fd, 0));
-
-    if (map == MAP_FAILED) {
-      RTC_LOG(LS_ERROR) << "Failed to mmap the memory: "
-                        << std::strerror(errno);
-      return;
-    }
-
-    SyncDmaBuf(fd, DMA_BUF_SYNC_START);
-
-    src = SPA_MEMBER(map, spaBuffer->datas[0].mapoffset, uint8_t);
-  } else if (spaBuffer->datas[0].type == pw_core_type_->data.MemPtr) {
-    map = nullptr;
-    src = static_cast<uint8_t*>(spaBuffer->datas[0].data);
-  } else {
-    return;
-  }
-
-  if (!src) {
-    return;
-  }
-
-  DesktopSize prev_crop_size = video_crop_size_.value_or(DesktopSize(0, 0));
-
-  if ((video_crop = static_cast<struct spa_meta_video_crop*>(
-           spa_buffer_find_meta(spaBuffer, pw_core_type_->meta.VideoCrop)))) {
-    RTC_DCHECK(video_crop->width <= desktop_size_.width() &&
-               video_crop->height <= desktop_size_.height());
-    if ((video_crop->width != desktop_size_.width() ||
-         video_crop->height != desktop_size_.height()) &&
-        video_crop->width && video_crop->height) {
-      video_crop_size_ = DesktopSize(video_crop->width, video_crop->height);
-    } else {
-      video_crop_size_.reset();
-    }
-  } else {
-    video_crop_size_.reset();
-  }
-
-  size_t frame_size;
-  if (video_crop_size_) {
-    frame_size =
-        video_crop_size_->width() * video_crop_size_->height() * kBytesPerPixel;
-  } else {
-    frame_size =
-        desktop_size_.width() * desktop_size_.height() * kBytesPerPixel;
-  }
-
-  if (!current_frame_ ||
-      (video_crop_size_ && !video_crop_size_->equals(prev_crop_size)) ||
-      (!video_crop_size_ && !prev_crop_size.is_empty())) {
-    current_frame_ = std::make_unique<uint8_t[]>(frame_size);
-  }
-  RTC_DCHECK(current_frame_ != nullptr);
-
-  const int32_t dstStride = video_crop_size_
-                                ? video_crop_size_->width() * kBytesPerPixel
-                                : desktop_size_.width() * kBytesPerPixel;
-  const int32_t srcStride = spaBuffer->datas[0].chunk->stride;
-
-  if (srcStride != (desktop_size_.width() * kBytesPerPixel)) {
-    RTC_LOG(LS_ERROR) << "Got buffer with stride different from screen stride: "
-                      << srcStride
-                      << " != " << (desktop_size_.width() * kBytesPerPixel);
-    pipewire_init_failed_ = true;
-    return;
-  }
-
-  dst = current_frame_.get();
-
-  // Adjust source content based on crop video position
-  if (video_crop_size_ &&
-      (video_crop->y + video_crop_size_->height() <= desktop_size_.height())) {
-    for (int i = 0; i < video_crop->y; ++i) {
-      src += srcStride;
-    }
-  }
-
-  const int xOffset =
-      video_crop_size_ && (video_crop->x + video_crop_size_->width() <=
-                           desktop_size_.width())
-          ? video_crop->x * kBytesPerPixel
-          : 0;
-  const int height = video_crop_size_.value_or(desktop_size_).height();
-  for (int i = 0; i < height; ++i) {
-    // Adjust source content based on crop video position if needed
-    src += xOffset;
-    std::memcpy(dst, src, dstStride);
-    // If both sides decided to go with the RGBx format we need to convert it to
-    // BGRx to match color format expected by WebRTC.
-    if (spa_video_format_->format == pw_type_->video_format.RGBx ||
-        spa_video_format_->format == pw_type_->video_format.RGBA) {
-      ConvertRGBToBGR(dst, dstStride);
-    }
-    src += srcStride - xOffset;
-    dst += dstStride;
-  }
-
-  if (map) {
-    if (spaBuffer->datas[0].type == pw_core_type_->data.DmaBuf) {
-      SyncDmaBuf(spaBuffer->datas[0].fd, DMA_BUF_SYNC_END);
-    }
-    munmap(map, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset);
-  }
-}
-
-void PipeWireBase::ConvertRGBToBGR(uint8_t* frame, uint32_t size) {
-  // Change color format for KDE KWin which uses RGBx and not BGRx
-  for (uint32_t i = 0; i < size; i += 4) {
-    uint8_t tempR = frame[i];
-    uint8_t tempB = frame[i + 2];
-    frame[i] = tempB;
-    frame[i + 2] = tempR;
-  }
-}
-
-}  // namespace webrtc
diff --git a/modules/desktop_capture/linux/pipewire_base.h b/modules/desktop_capture/linux/pipewire_base.h
deleted file mode 100644
index 5900b58..0000000
--- a/modules/desktop_capture/linux/pipewire_base.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- *  Copyright 2020 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.
- */
-
-#ifndef MODULES_DESKTOP_CAPTURE_LINUX_PIPEWIRE_BASE_H_
-#define MODULES_DESKTOP_CAPTURE_LINUX_PIPEWIRE_BASE_H_
-
-#define typeof __typeof__
-#include <pipewire/pipewire.h>
-#include <spa/param/video/format-utils.h>
-
-#include <memory>
-
-#include "modules/desktop_capture/desktop_geometry.h"
-
-#include "absl/types/optional.h"
-#include "api/ref_counted_base.h"
-#include "rtc_base/constructor_magic.h"
-
-namespace webrtc {
-
-class PipeWireType {
- public:
-  spa_type_media_type media_type;
-  spa_type_media_subtype media_subtype;
-  spa_type_format_video format_video;
-  spa_type_video_format video_format;
-};
-
-class PipeWireBase : public rtc::RefCountedBase {
- public:
-  explicit PipeWireBase(int32_t fd);
-  ~PipeWireBase();
-
-  uint8_t* Frame() const;
-  DesktopSize FrameSize() const;
-
- private:
-  pw_core* pw_core_ = nullptr;
-  pw_type* pw_core_type_ = nullptr;
-  pw_stream* pw_stream_ = nullptr;
-  pw_remote* pw_remote_ = nullptr;
-  pw_loop* pw_loop_ = nullptr;
-  pw_thread_loop* pw_main_loop_ = nullptr;
-  PipeWireType* pw_type_ = nullptr;
-
-  spa_hook spa_stream_listener_ = {};
-  spa_hook spa_remote_listener_ = {};
-
-  pw_stream_events pw_stream_events_ = {};
-  pw_remote_events pw_remote_events_ = {};
-
-  spa_video_info_raw* spa_video_format_ = nullptr;
-
-  int32_t pw_fd_ = -1;
-
-  absl::optional<DesktopSize> video_crop_size_;
-  DesktopSize desktop_size_ = {};
-
-  bool pipewire_init_failed_ = false;
-
-  std::unique_ptr<uint8_t[]> current_frame_;
-
-  void InitPipeWireTypes();
-
-  void CreateReceivingStream();
-  void HandleBuffer(pw_buffer* buffer);
-
-  void ConvertRGBToBGR(uint8_t* frame, uint32_t size);
-
-  static void SyncDmaBuf(int fd, uint64_t start_or_end);
-
-  static void OnStateChanged(void* data,
-                             pw_remote_state old_state,
-                             pw_remote_state state,
-                             const char* error);
-  static void OnStreamStateChanged(void* data,
-                                   pw_stream_state old_state,
-                                   pw_stream_state state,
-                                   const char* error_message);
-
-  static void OnStreamFormatChanged(void* data, const struct spa_pod* format);
-  static void OnStreamProcess(void* data);
-  static void OnNewBuffer(void* data, uint32_t id);
-};
-
-}  // namespace webrtc
-
-#endif  // MODULES_DESKTOP_CAPTURE_LINUX_PIPEWIRE_BASE_H_
diff --git a/modules/desktop_capture/linux/screen_capturer_pipewire.cc b/modules/desktop_capture/linux/screen_capturer_pipewire.cc
new file mode 100644
index 0000000..fe67214
--- /dev/null
+++ b/modules/desktop_capture/linux/screen_capturer_pipewire.cc
@@ -0,0 +1,29 @@
+/*
+ *  Copyright 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 "modules/desktop_capture/linux/screen_capturer_pipewire.h"
+
+#include <memory>
+
+
+namespace webrtc {
+
+ScreenCapturerPipeWire::ScreenCapturerPipeWire()
+    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::Screen) {}
+ScreenCapturerPipeWire::~ScreenCapturerPipeWire() {}
+
+// static
+std::unique_ptr<DesktopCapturer>
+ScreenCapturerPipeWire::CreateRawScreenCapturer(
+    const DesktopCaptureOptions& options) {
+  return std::make_unique<ScreenCapturerPipeWire>();
+}
+
+}  // namespace webrtc
diff --git a/modules/desktop_capture/linux/screen_capturer_pipewire.h b/modules/desktop_capture/linux/screen_capturer_pipewire.h
new file mode 100644
index 0000000..66dcd68
--- /dev/null
+++ b/modules/desktop_capture/linux/screen_capturer_pipewire.h
@@ -0,0 +1,33 @@
+/*
+ *  Copyright 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.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_LINUX_SCREEN_CAPTURER_PIPEWIRE_H_
+#define MODULES_DESKTOP_CAPTURE_LINUX_SCREEN_CAPTURER_PIPEWIRE_H_
+
+#include <memory>
+
+#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
+
+namespace webrtc {
+
+class ScreenCapturerPipeWire : public BaseCapturerPipeWire {
+ public:
+  ScreenCapturerPipeWire();
+  ~ScreenCapturerPipeWire() override;
+
+  static std::unique_ptr<DesktopCapturer> CreateRawScreenCapturer(
+      const DesktopCaptureOptions& options);
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(ScreenCapturerPipeWire);
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_DESKTOP_CAPTURE_LINUX_SCREEN_CAPTURER_PIPEWIRE_H_
diff --git a/modules/desktop_capture/linux/window_capturer_pipewire.cc b/modules/desktop_capture/linux/window_capturer_pipewire.cc
new file mode 100644
index 0000000..b455915
--- /dev/null
+++ b/modules/desktop_capture/linux/window_capturer_pipewire.cc
@@ -0,0 +1,29 @@
+/*
+ *  Copyright 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 "modules/desktop_capture/linux/window_capturer_pipewire.h"
+
+#include <memory>
+
+
+namespace webrtc {
+
+WindowCapturerPipeWire::WindowCapturerPipeWire()
+    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::Window) {}
+WindowCapturerPipeWire::~WindowCapturerPipeWire() {}
+
+// static
+std::unique_ptr<DesktopCapturer>
+WindowCapturerPipeWire::CreateRawWindowCapturer(
+    const DesktopCaptureOptions& options) {
+  return std::make_unique<WindowCapturerPipeWire>();
+}
+
+}  // namespace webrtc
diff --git a/modules/desktop_capture/linux/window_capturer_pipewire.h b/modules/desktop_capture/linux/window_capturer_pipewire.h
new file mode 100644
index 0000000..7f184ef
--- /dev/null
+++ b/modules/desktop_capture/linux/window_capturer_pipewire.h
@@ -0,0 +1,33 @@
+/*
+ *  Copyright 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.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_LINUX_WINDOW_CAPTURER_PIPEWIRE_H_
+#define MODULES_DESKTOP_CAPTURE_LINUX_WINDOW_CAPTURER_PIPEWIRE_H_
+
+#include <memory>
+
+#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
+
+namespace webrtc {
+
+class WindowCapturerPipeWire : public BaseCapturerPipeWire {
+ public:
+  WindowCapturerPipeWire();
+  ~WindowCapturerPipeWire() override;
+
+  static std::unique_ptr<DesktopCapturer> CreateRawWindowCapturer(
+      const DesktopCaptureOptions& options);
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(WindowCapturerPipeWire);
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_DESKTOP_CAPTURE_LINUX_WINDOW_CAPTURER_PIPEWIRE_H_
diff --git a/modules/desktop_capture/linux/xdg_desktop_portal_base.cc b/modules/desktop_capture/linux/xdg_desktop_portal_base.cc
deleted file mode 100644
index 0c7e6930..0000000
--- a/modules/desktop_capture/linux/xdg_desktop_portal_base.cc
+++ /dev/null
@@ -1,813 +0,0 @@
-/*
- *  Copyright 2020 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 "modules/desktop_capture/linux/xdg_desktop_portal_base.h"
-
-#include <gio/gunixfdlist.h>
-
-#include <utility>
-
-#include "rtc_base/checks.h"
-#include "rtc_base/logging.h"
-
-namespace webrtc {
-
-const char kDesktopBusName[] = "org.freedesktop.portal.Desktop";
-const char kDesktopObjectPath[] = "/org/freedesktop/portal/desktop";
-const char kDesktopRequestObjectPath[] =
-    "/org/freedesktop/portal/desktop/request";
-const char kSessionInterfaceName[] = "org.freedesktop.portal.Session";
-const char kRequestInterfaceName[] = "org.freedesktop.portal.Request";
-const char kScreenCastInterfaceName[] = "org.freedesktop.portal.ScreenCast";
-
-template <class T>
-class Scoped {
- public:
-  Scoped() {}
-  explicit Scoped(T* val) { ptr_ = val; }
-  ~Scoped() { RTC_NOTREACHED(); }
-
-  T* operator->() { return ptr_; }
-
-  bool operator!() { return ptr_ == nullptr; }
-
-  T* get() { return ptr_; }
-
-  T** receive() {
-    RTC_CHECK(!ptr_);
-    return &ptr_;
-  }
-
-  Scoped& operator=(T* val) {
-    ptr_ = val;
-    return *this;
-  }
-
- protected:
-  T* ptr_ = nullptr;
-};
-
-template <>
-Scoped<GError>::~Scoped() {
-  if (ptr_) {
-    g_error_free(ptr_);
-  }
-}
-
-template <>
-Scoped<gchar>::~Scoped() {
-  if (ptr_) {
-    g_free(ptr_);
-  }
-}
-
-template <>
-Scoped<GVariant>::~Scoped() {
-  if (ptr_) {
-    g_variant_unref(ptr_);
-  }
-}
-
-template <>
-Scoped<GVariantIter>::~Scoped() {
-  if (ptr_) {
-    g_variant_iter_free(ptr_);
-  }
-}
-
-template <>
-Scoped<GDBusMessage>::~Scoped() {
-  if (ptr_) {
-    g_object_unref(ptr_);
-  }
-}
-
-template <>
-Scoped<GUnixFDList>::~Scoped() {
-  if (ptr_) {
-    g_object_unref(ptr_);
-  }
-}
-
-ConnectionData::ConnectionData(int32_t id) : id_(id) {}
-
-ConnectionData::~ConnectionData() {
-  if (start_request_signal_id_) {
-    g_dbus_connection_signal_unsubscribe(connection_, start_request_signal_id_);
-    start_request_signal_id_ = 0;
-  }
-  if (sources_request_signal_id_) {
-    g_dbus_connection_signal_unsubscribe(connection_,
-                                         sources_request_signal_id_);
-    sources_request_signal_id_ = 0;
-  }
-  if (session_request_signal_id_) {
-    g_dbus_connection_signal_unsubscribe(connection_,
-                                         session_request_signal_id_);
-    session_request_signal_id_ = 0;
-  }
-
-  if (session_handle_) {
-    Scoped<GDBusMessage> message(g_dbus_message_new_method_call(
-        kDesktopBusName, session_handle_, kSessionInterfaceName, "Close"));
-    if (message.get()) {
-      Scoped<GError> error;
-      g_dbus_connection_send_message(connection_, message.get(),
-                                     G_DBUS_SEND_MESSAGE_FLAGS_NONE,
-                                     /*out_serial=*/nullptr, error.receive());
-      if (error.get()) {
-        RTC_LOG(LS_ERROR) << "Failed to close the session: " << error->message;
-      }
-    }
-  }
-
-  g_free(start_handle_);
-  start_handle_ = nullptr;
-  g_free(sources_handle_);
-  sources_handle_ = nullptr;
-  g_free(session_handle_);
-  session_handle_ = nullptr;
-  g_free(portal_handle_);
-  portal_handle_ = nullptr;
-
-  if (proxy_) {
-    g_clear_object(&proxy_);
-    proxy_ = nullptr;
-  }
-
-  g_object_unref(connection_);
-  connection_ = nullptr;
-
-  // Restore to initial values
-  id_ = 0;
-  stream_id_ = 0;
-  pw_fd_ = -1;
-  portal_init_failed_ = false;
-}
-
-XdgDesktopPortalBase::XdgDesktopPortalBase() {}
-
-XdgDesktopPortalBase::~XdgDesktopPortalBase() {
-  connection_data_map_.clear();
-}
-
-// static
-rtc::scoped_refptr<XdgDesktopPortalBase> XdgDesktopPortalBase::CreateDefault() {
-  return new XdgDesktopPortalBase();
-}
-
-void XdgDesktopPortalBase::InitPortal(
-    rtc::Callback1<void, bool> callback,
-    XdgDesktopPortalBase::CaptureSourceType requested_type,
-    int32_t id) {
-  if (!id) {
-    callback(false);
-    return;
-  }
-
-  auto data = GetConnectionData(id);
-
-  if (data) {
-    data->callbacks_.push_back(callback);
-    return;
-  }
-
-  std::unique_ptr<ConnectionData> connection_data(new ConnectionData(id));
-  connection_data->callbacks_.push_back(callback);
-  connection_data->requested_source_type_ = requested_type;
-
-  connection_data_map_.insert({id, std::move(connection_data)});
-
-  g_dbus_proxy_new_for_bus(
-      G_BUS_TYPE_SESSION, G_DBUS_PROXY_FLAGS_NONE, /*info=*/nullptr,
-      kDesktopBusName, kDesktopObjectPath, kScreenCastInterfaceName,
-      /*cancellable=*/nullptr,
-      reinterpret_cast<GAsyncReadyCallback>(OnProxyRequested),
-      new UserData(id, this));
-}
-
-bool XdgDesktopPortalBase::IsConnectionInitialized(
-    const absl::optional<int32_t>& id) const {
-  auto connection_data = GetConnectionData(id);
-
-  if (!connection_data) {
-    return false;
-  }
-
-  if (connection_data->portal_init_failed_) {
-    return false;
-  }
-
-  if (connection_data->pw_fd_ == -1) {
-    return false;
-  }
-
-  return true;
-}
-
-bool XdgDesktopPortalBase::IsConnectionStreamingOnWeb(
-    const absl::optional<int32_t>& id) const {
-  auto connection_data = GetConnectionData(id);
-
-  if (!connection_data) {
-    return false;
-  }
-
-  return connection_data->web_streaming_;
-}
-
-PipeWireBase* XdgDesktopPortalBase::GetPipeWireBase(
-    const absl::optional<int32_t>& id) const {
-  int32_t valid_id = id.value_or(current_connection_id_.value_or(0));
-
-  auto connection_data = GetConnectionData(valid_id);
-  RTC_CHECK(connection_data);
-
-  if (!connection_data->pw_base_) {
-    return nullptr;
-  }
-
-  auto pwBase = connection_data->pw_base_.get();
-
-  // Assume this call/connection has been already used when someone asks for
-  // PipeWireBase which we use to guess we already stream to the web page itself
-  // and not to the preview dialog
-  if (!connection_data->already_used_ && pwBase && pwBase->Frame()) {
-    connection_data->already_used_ = true;
-  }
-
-  return pwBase;
-}
-
-ConnectionData* XdgDesktopPortalBase::GetConnectionData(
-    const absl::optional<int32_t>& id) const {
-  int32_t valid_id = id.value_or(current_connection_id_.value_or(0));
-
-  auto search = connection_data_map_.find(valid_id);
-  if (search != connection_data_map_.end()) {
-    return search->second.get();
-  }
-
-  return nullptr;
-}
-
-absl::optional<int32_t> XdgDesktopPortalBase::CurrentConnectionId() const {
-  return current_connection_id_;
-}
-
-void XdgDesktopPortalBase::SetCurrentConnectionId(
-    const absl::optional<int32_t>& id) {
-  current_connection_id_ = id;
-}
-
-guint XdgDesktopPortalBase::SetupRequestResponseSignal(
-    const gchar* object_path,
-    GDBusSignalCallback callback,
-    UserData* data) {
-  auto connection_data = GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  return g_dbus_connection_signal_subscribe(
-      connection_data->connection_, kDesktopBusName, kRequestInterfaceName,
-      "Response", object_path, /*arg0=*/nullptr,
-      G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE, callback, data,
-      /*user_data_free_func=*/nullptr);
-}
-
-// static
-void XdgDesktopPortalBase::OnProxyRequested(GObject* /*object*/,
-                                            GAsyncResult* result,
-                                            gpointer user_data) {
-  UserData* data = static_cast<UserData*>(user_data);
-  RTC_DCHECK(data);
-
-  auto* portal_base = data->GetXdgDesktopPortalBase();
-  RTC_CHECK(portal_base);
-
-  auto connection_data = portal_base->GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  Scoped<GError> error;
-  connection_data->proxy_ = g_dbus_proxy_new_finish(result, error.receive());
-  if (!connection_data->proxy_) {
-    RTC_LOG(LS_ERROR) << "Failed to create a proxy for the screen cast portal: "
-                      << error->message;
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-  connection_data->connection_ =
-      g_dbus_proxy_get_connection(connection_data->proxy_);
-
-  RTC_LOG(LS_INFO) << "Created proxy for the screen cast portal.";
-  portal_base->SessionRequest(data);
-}
-
-// static
-gchar* XdgDesktopPortalBase::PrepareSignalHandle(GDBusConnection* connection,
-                                                 const gchar* token) {
-  Scoped<gchar> sender(
-      g_strdup(g_dbus_connection_get_unique_name(connection) + 1));
-  for (int i = 0; sender.get()[i]; i++) {
-    if (sender.get()[i] == '.') {
-      sender.get()[i] = '_';
-    }
-  }
-
-  gchar* handle = g_strconcat(kDesktopRequestObjectPath, "/", sender.get(), "/",
-                              token, /*end of varargs*/ nullptr);
-
-  return handle;
-}
-
-void XdgDesktopPortalBase::SessionRequest(UserData* data) {
-  auto connection_data = GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  GVariantBuilder builder;
-  Scoped<gchar> variant_string;
-
-  g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
-  variant_string =
-      g_strdup_printf("webrtc_session%d", g_random_int_range(0, G_MAXINT));
-  g_variant_builder_add(&builder, "{sv}", "session_handle_token",
-                        g_variant_new_string(variant_string.get()));
-
-  variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
-  g_variant_builder_add(&builder, "{sv}", "handle_token",
-                        g_variant_new_string(variant_string.get()));
-
-  connection_data->portal_handle_ =
-      PrepareSignalHandle(connection_data->connection_, variant_string.get());
-  connection_data->session_request_signal_id_ = SetupRequestResponseSignal(
-      connection_data->portal_handle_, OnSessionRequestResponseSignal, data);
-
-  RTC_LOG(LS_INFO) << "Screen cast session requested.";
-  g_dbus_proxy_call(connection_data->proxy_, "CreateSession",
-                    g_variant_new("(a{sv})", &builder), G_DBUS_CALL_FLAGS_NONE,
-                    /*timeout=*/-1, /*cancellable=*/nullptr,
-                    reinterpret_cast<GAsyncReadyCallback>(OnSessionRequested),
-                    data);
-}
-
-// static
-void XdgDesktopPortalBase::OnSessionRequested(GDBusConnection* connection,
-                                              GAsyncResult* result,
-                                              gpointer user_data) {
-  UserData* data = static_cast<UserData*>(user_data);
-  RTC_DCHECK(data);
-
-  auto* portal_base = data->GetXdgDesktopPortalBase();
-  RTC_CHECK(portal_base);
-
-  auto connection_data = portal_base->GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  Scoped<GError> error;
-  Scoped<GVariant> variant(g_dbus_proxy_call_finish(connection_data->proxy_,
-                                                    result, error.receive()));
-  if (!variant) {
-    RTC_LOG(LS_ERROR) << "Failed to create a screen cast session: "
-                      << error->message;
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-  RTC_LOG(LS_INFO) << "Initializing the screen cast session.";
-
-  Scoped<gchar> handle;
-  g_variant_get_child(variant.get(), 0, "o", handle.receive());
-  if (!handle) {
-    RTC_LOG(LS_ERROR) << "Failed to initialize the screen cast session.";
-    if (connection_data->session_request_signal_id_) {
-      g_dbus_connection_signal_unsubscribe(
-          connection, connection_data->session_request_signal_id_);
-      connection_data->session_request_signal_id_ = 0;
-    }
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  RTC_LOG(LS_INFO) << "Subscribing to the screen cast session.";
-}
-
-// static
-void XdgDesktopPortalBase::OnSessionRequestResponseSignal(
-    GDBusConnection* connection,
-    const gchar* sender_name,
-    const gchar* object_path,
-    const gchar* interface_name,
-    const gchar* signal_name,
-    GVariant* parameters,
-    gpointer user_data) {
-  UserData* data = static_cast<UserData*>(user_data);
-  RTC_DCHECK(data);
-
-  auto* portal_base = data->GetXdgDesktopPortalBase();
-  RTC_CHECK(portal_base);
-
-  auto connection_data = portal_base->GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  RTC_LOG(LS_INFO)
-      << "Received response for the screen cast session subscription.";
-
-  guint32 portal_response;
-  Scoped<GVariant> response_data;
-  g_variant_get(parameters, "(u@a{sv})", &portal_response,
-                response_data.receive());
-  g_variant_lookup(response_data.get(), "session_handle", "s",
-                   &connection_data->session_handle_);
-
-  if (!connection_data->session_handle_ || portal_response) {
-    RTC_LOG(LS_ERROR)
-        << "Failed to request the screen cast session subscription.";
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    return;
-  }
-
-  portal_base->SourcesRequest(data);
-}
-
-void XdgDesktopPortalBase::SourcesRequest(UserData* data) {
-  auto connection_data = GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  GVariantBuilder builder;
-  Scoped<gchar> variant_string;
-
-  g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
-  // We want to record monitor content.
-  g_variant_builder_add(&builder, "{sv}", "types",
-                        g_variant_new_uint32(static_cast<uint32_t>(
-                            connection_data->requested_source_type_)));
-  // We don't want to allow selection of multiple sources.
-  g_variant_builder_add(&builder, "{sv}", "multiple",
-                        g_variant_new_boolean(false));
-  variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
-  g_variant_builder_add(&builder, "{sv}", "handle_token",
-                        g_variant_new_string(variant_string.get()));
-
-  connection_data->sources_handle_ =
-      PrepareSignalHandle(connection_data->connection_, variant_string.get());
-  connection_data->sources_request_signal_id_ = SetupRequestResponseSignal(
-      connection_data->sources_handle_, OnSourcesRequestResponseSignal, data);
-
-  RTC_LOG(LS_INFO) << "Requesting sources from the screen cast session.";
-  g_dbus_proxy_call(
-      connection_data->proxy_, "SelectSources",
-      g_variant_new("(oa{sv})", connection_data->session_handle_, &builder),
-      G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, /*cancellable=*/nullptr,
-      reinterpret_cast<GAsyncReadyCallback>(OnSourcesRequested), data);
-}
-
-// static
-void XdgDesktopPortalBase::OnSourcesRequested(GDBusConnection* connection,
-                                              GAsyncResult* result,
-                                              gpointer user_data) {
-  UserData* data = static_cast<UserData*>(user_data);
-  RTC_DCHECK(data);
-
-  auto* portal_base = data->GetXdgDesktopPortalBase();
-  RTC_CHECK(portal_base);
-
-  auto connection_data = portal_base->GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  Scoped<GError> error;
-  Scoped<GVariant> variant(g_dbus_proxy_call_finish(connection_data->proxy_,
-                                                    result, error.receive()));
-  if (!variant) {
-    RTC_LOG(LS_ERROR) << "Failed to request the sources: " << error->message;
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  RTC_LOG(LS_INFO) << "Sources requested from the screen cast session.";
-
-  Scoped<gchar> handle;
-  g_variant_get_child(variant.get(), 0, "o", handle.receive());
-  if (!handle) {
-    RTC_LOG(LS_ERROR) << "Failed to initialize the screen cast session.";
-    if (connection_data->sources_request_signal_id_) {
-      g_dbus_connection_signal_unsubscribe(
-          connection, connection_data->sources_request_signal_id_);
-      connection_data->sources_request_signal_id_ = 0;
-    }
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  RTC_LOG(LS_INFO) << "Subscribed to sources signal.";
-}
-
-// static
-void XdgDesktopPortalBase::OnSourcesRequestResponseSignal(
-    GDBusConnection* connection,
-    const gchar* sender_name,
-    const gchar* object_path,
-    const gchar* interface_name,
-    const gchar* signal_name,
-    GVariant* parameters,
-    gpointer user_data) {
-  UserData* data = static_cast<UserData*>(user_data);
-  RTC_DCHECK(data);
-
-  auto* portal_base = data->GetXdgDesktopPortalBase();
-  RTC_CHECK(portal_base);
-
-  auto connection_data = portal_base->GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  RTC_LOG(LS_INFO) << "Received sources signal from session.";
-
-  guint32 portal_response;
-  g_variant_get(parameters, "(u@a{sv})", &portal_response, nullptr);
-  if (portal_response) {
-    RTC_LOG(LS_ERROR)
-        << "Failed to select sources for the screen cast session.";
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  portal_base->StartRequest(data);
-}
-
-void XdgDesktopPortalBase::StartRequest(UserData* data) {
-  auto connection_data = GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  GVariantBuilder builder;
-  Scoped<gchar> variant_string;
-
-  g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
-  variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
-  g_variant_builder_add(&builder, "{sv}", "handle_token",
-                        g_variant_new_string(variant_string.get()));
-
-  connection_data->start_handle_ =
-      PrepareSignalHandle(connection_data->connection_, variant_string.get());
-  connection_data->start_request_signal_id_ = SetupRequestResponseSignal(
-      connection_data->start_handle_, OnStartRequestResponseSignal, data);
-
-  // "Identifier for the application window", this is Wayland, so not "x11:...".
-  const gchar parent_window[] = "";
-
-  RTC_LOG(LS_INFO) << "Starting the screen cast session.";
-  g_dbus_proxy_call(
-      connection_data->proxy_, "Start",
-      g_variant_new("(osa{sv})", connection_data->session_handle_,
-                    parent_window, &builder),
-      G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, /*cancellable=*/nullptr,
-      reinterpret_cast<GAsyncReadyCallback>(OnStartRequested), data);
-}
-
-// static
-void XdgDesktopPortalBase::OnStartRequested(GDBusConnection* connection,
-                                            GAsyncResult* result,
-                                            gpointer user_data) {
-  UserData* data = static_cast<UserData*>(user_data);
-  RTC_DCHECK(data);
-
-  auto* portal_base = data->GetXdgDesktopPortalBase();
-  RTC_CHECK(portal_base);
-
-  auto connection_data = portal_base->GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  Scoped<GError> error;
-  Scoped<GVariant> variant(g_dbus_proxy_call_finish(connection_data->proxy_,
-                                                    result, error.receive()));
-  if (!variant) {
-    RTC_LOG(LS_ERROR) << "Failed to start the screen cast session: "
-                      << error->message;
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  RTC_LOG(LS_INFO) << "Initializing the start of the screen cast session.";
-
-  gchar* handle = nullptr;
-  g_variant_get_child(variant.get(), 0, "o", &handle);
-  if (!handle) {
-    RTC_LOG(LS_ERROR)
-        << "Failed to initialize the start of the screen cast session.";
-    if (connection_data->start_request_signal_id_) {
-      g_dbus_connection_signal_unsubscribe(
-          connection, connection_data->start_request_signal_id_);
-      connection_data->start_request_signal_id_ = 0;
-    }
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  RTC_LOG(LS_INFO) << "Subscribed to the start signal.";
-}
-
-// static
-void XdgDesktopPortalBase::OnStartRequestResponseSignal(
-    GDBusConnection* connection,
-    const gchar* sender_name,
-    const gchar* object_path,
-    const gchar* interface_name,
-    const gchar* signal_name,
-    GVariant* parameters,
-    gpointer user_data) {
-  UserData* data = static_cast<UserData*>(user_data);
-  RTC_DCHECK(data);
-
-  auto* portal_base = data->GetXdgDesktopPortalBase();
-  RTC_CHECK(portal_base);
-
-  auto connection_data = portal_base->GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  RTC_LOG(LS_INFO) << "Start signal received.";
-  guint32 portal_response;
-  Scoped<GVariant> response_data;
-  Scoped<GVariantIter> iter;
-  g_variant_get(parameters, "(u@a{sv})", &portal_response,
-                response_data.receive());
-  if (portal_response || !response_data) {
-    RTC_LOG(LS_ERROR) << "Failed to start the screen cast session.";
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  // Array of PipeWire streams. See
-  // https://github.com/flatpak/xdg-desktop-portal/blob/master/data/org.freedesktop.portal.ScreenCast.xml
-  // documentation for <method name="Start">.
-  if (g_variant_lookup(response_data.get(), "streams", "a(ua{sv})",
-                       iter.receive())) {
-    Scoped<GVariant> variant;
-
-    while (g_variant_iter_next(iter.get(), "@(ua{sv})", variant.receive())) {
-      guint32 stream_id;
-      gint32 width;
-      gint32 height;
-      guint32 type;
-      Scoped<GVariant> options;
-
-      g_variant_get(variant.get(), "(u@a{sv})", &stream_id, options.receive());
-      RTC_DCHECK(options.get());
-
-      g_variant_lookup(options.get(), "size", "(ii)", &width, &height);
-
-      if (g_variant_lookup(options.get(), "source_type", "u", &type)) {
-        connection_data->capture_source_type_ =
-            static_cast<XdgDesktopPortalBase::CaptureSourceType>(type);
-      }
-      connection_data->desktop_size_.set(width, height);
-      connection_data->stream_id_ = stream_id;
-
-      break;
-    }
-  }
-
-  portal_base->OpenPipeWireRemote(data);
-}
-
-void XdgDesktopPortalBase::OpenPipeWireRemote(UserData* data) {
-  auto connection_data = GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  if (!connection_data) {
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    CloseConnection(connection_data->id_);
-    return;
-  }
-
-  GVariantBuilder builder;
-  g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
-
-  RTC_LOG(LS_INFO) << "Opening the PipeWire remote.";
-
-  g_dbus_proxy_call_with_unix_fd_list(
-      connection_data->proxy_, "OpenPipeWireRemote",
-      g_variant_new("(oa{sv})", connection_data->session_handle_, &builder),
-      G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, /*fd_list=*/nullptr,
-      /*cancellable=*/nullptr,
-      reinterpret_cast<GAsyncReadyCallback>(OnOpenPipeWireRemoteRequested),
-      data);
-}
-
-// static
-void XdgDesktopPortalBase::OnOpenPipeWireRemoteRequested(
-    GDBusConnection* connection,
-    GAsyncResult* result,
-    gpointer user_data) {
-  UserData* data = static_cast<UserData*>(user_data);
-  RTC_DCHECK(data);
-
-  auto* portal_base = data->GetXdgDesktopPortalBase();
-  RTC_CHECK(portal_base);
-
-  auto connection_data = portal_base->GetConnectionData(data->GetDataId());
-  RTC_CHECK(connection_data);
-
-  Scoped<GError> error;
-  Scoped<GUnixFDList> outlist;
-  Scoped<GVariant> variant(g_dbus_proxy_call_with_unix_fd_list_finish(
-      connection_data->proxy_, outlist.receive(), result, error.receive()));
-  if (!variant) {
-    RTC_LOG(LS_ERROR) << "Failed to open the PipeWire remote: "
-                      << error->message;
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  gint32 index;
-  g_variant_get(variant.get(), "(h)", &index);
-
-  if ((connection_data->pw_fd_ =
-           g_unix_fd_list_get(outlist.get(), index, error.receive())) == -1) {
-    RTC_LOG(LS_ERROR) << "Failed to get file descriptor from the list: "
-                      << error->message;
-    connection_data->portal_init_failed_ = true;
-    for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-      callback(false);
-    }
-    portal_base->CloseConnection(connection_data->id_);
-    return;
-  }
-
-  connection_data->pw_base_ =
-      std::make_unique<PipeWireBase>(connection_data->pw_fd_);
-
-  for (rtc::Callback1<void, bool>& callback : connection_data->callbacks_) {
-    callback(true);
-  }
-}
-
-void XdgDesktopPortalBase::CloseConnection(const absl::optional<int32_t>& id) {
-  auto connection_data = GetConnectionData(id);
-
-  if (!connection_data) {
-    return;
-  }
-
-  connection_data_map_.erase(connection_data->id_);
-}
-
-void XdgDesktopPortalBase::SetConnectionStreamingOnWeb(
-    const absl::optional<int32_t>& id) {
-  auto connection_data = GetConnectionData(id);
-
-  if (!connection_data) {
-    return;
-  }
-
-  connection_data->web_streaming_ = true;
-}
-
-}  // namespace webrtc
diff --git a/modules/desktop_capture/linux/xdg_desktop_portal_base.h b/modules/desktop_capture/linux/xdg_desktop_portal_base.h
deleted file mode 100644
index 829cbf9..0000000
--- a/modules/desktop_capture/linux/xdg_desktop_portal_base.h
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- *  Copyright 2020 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.
- */
-
-#ifndef MODULES_DESKTOP_CAPTURE_LINUX_XDG_DESKTOP_PORTAL_BASE_H_
-#define MODULES_DESKTOP_CAPTURE_LINUX_XDG_DESKTOP_PORTAL_BASE_H_
-
-#include <gio/gio.h>
-
-#include <map>
-#include <memory>
-#include <vector>
-
-#include "modules/desktop_capture/desktop_geometry.h"
-#include "modules/desktop_capture/linux/pipewire_base.h"
-
-#include "api/ref_counted_base.h"
-#include "api/scoped_refptr.h"
-#include "rtc_base/callback.h"
-#include "rtc_base/constructor_magic.h"
-
-namespace webrtc {
-
-struct ConnectionData;
-class UserData;
-
-class RTC_EXPORT XdgDesktopPortalBase : public rtc::RefCountedBase {
- public:
-  enum class CaptureSourceType : uint32_t {
-    kScreen = 0b01,
-    kWindow = 0b10,
-    kAny = 0b11
-  };
-
-  XdgDesktopPortalBase();
-  ~XdgDesktopPortalBase();
-
-  static rtc::scoped_refptr<XdgDesktopPortalBase> CreateDefault();
-
-  // Initializes a screen sharing request for a web page identified with a
-  // id. This id is later used to associate it with ConnectionData structure
-  // where we keep all the necessary information about the DBus communication.
-  //
-  // This starts a series of DBus calls:
-  //   1) SessionRequest - requests a session, which will be associated with
-  //   this screen sharing request, passing a handle for identification so
-  //   we can watch for success/failure.
-  //   2) SourceRequest - requests what content we want to share on given
-  //   session (either monitor, screen or both)
-  //   3) StartRequest - requests to
-  //   start sharing, which in return will give us information about stream
-  //   (stream id and resolution).
-  //   4) OpenPipeWireRemote - requests a file descriptor which we can use
-  //   for initialization of PipeWire on the client side and start receiving
-  //   content.
-  void InitPortal(rtc::Callback1<void, bool> callback,
-                  XdgDesktopPortalBase::CaptureSourceType requested_type,
-                  int32_t id);
-
-  void CloseConnection(const absl::optional<int32_t>& id);
-  void SetConnectionStreamingOnWeb(const absl::optional<int32_t>& id);
-
-  bool IsConnectionInitialized(const absl::optional<int32_t>& id) const;
-  bool IsConnectionStreamingOnWeb(const absl::optional<int32_t>& id) const;
-
-  PipeWireBase* GetPipeWireBase(const absl::optional<int32_t>& id) const;
-
-  // Current ID serves for the DesktopCapturerOption to identify portal call
-  // from the client itself so we can skip an additional call which would be
-  // made upon preview dialog confirmation (e.g. Chromium).
-  absl::optional<int32_t> CurrentConnectionId() const;
-  void SetCurrentConnectionId(const absl::optional<int32_t>& id);
-
-  ConnectionData* GetConnectionData(const absl::optional<int32_t>& id) const;
-
- private:
-  // Methods are defined in the same order in which they are being called
-  guint SetupRequestResponseSignal(const gchar* object_path,
-                                   GDBusSignalCallback callback,
-                                   UserData* data);
-
-  static void OnProxyRequested(GObject* object,
-                               GAsyncResult* result,
-                               gpointer user_data);
-
-  static gchar* PrepareSignalHandle(GDBusConnection* connection,
-                                    const gchar* token);
-
-  void SessionRequest(UserData* data);
-  static void OnSessionRequested(GDBusConnection* connection,
-                                 GAsyncResult* result,
-                                 gpointer user_data);
-  static void OnSessionRequestResponseSignal(GDBusConnection* connection,
-                                             const gchar* sender_name,
-                                             const gchar* object_path,
-                                             const gchar* interface_name,
-                                             const gchar* signal_name,
-                                             GVariant* parameters,
-                                             gpointer user_data);
-
-  void SourcesRequest(UserData* data);
-  static void OnSourcesRequested(GDBusConnection* connection,
-                                 GAsyncResult* result,
-                                 gpointer user_data);
-  static void OnSourcesRequestResponseSignal(GDBusConnection* connection,
-                                             const gchar* sender_name,
-                                             const gchar* object_path,
-                                             const gchar* interface_name,
-                                             const gchar* signal_name,
-                                             GVariant* parameters,
-                                             gpointer user_data);
-
-  void StartRequest(UserData* data);
-  static void OnStartRequested(GDBusConnection* connection,
-                               GAsyncResult* result,
-                               gpointer user_data);
-  static void OnStartRequestResponseSignal(GDBusConnection* connection,
-                                           const gchar* sender_name,
-                                           const gchar* object_path,
-                                           const gchar* interface_name,
-                                           const gchar* signal_name,
-                                           GVariant* parameters,
-                                           gpointer user_data);
-  void OpenPipeWireRemote(UserData* data);
-  static void OnOpenPipeWireRemoteRequested(GDBusConnection* connection,
-                                            GAsyncResult* result,
-                                            gpointer user_data);
-
-  absl::optional<int32_t> current_connection_id_;
-  std::map<int32_t, std::unique_ptr<ConnectionData>> connection_data_map_;
-
-  RTC_DISALLOW_COPY_AND_ASSIGN(XdgDesktopPortalBase);
-};
-
-// This class represents each screen sharing request, which consists from a
-// series of DBus calls, where we need to remember the session handle and
-// parameters of the returned stream (id, resolution).
-struct RTC_EXPORT ConnectionData {
-  explicit ConnectionData(int32_t id);
-  ~ConnectionData();
-
-  bool operator=(const int32_t id) { return id_ == id; }
-
-  gint32 pw_fd_ = -1;
-
-  XdgDesktopPortalBase::CaptureSourceType capture_source_type_ =
-      XdgDesktopPortalBase::CaptureSourceType::kAny;
-  XdgDesktopPortalBase::CaptureSourceType requested_source_type_ =
-      XdgDesktopPortalBase::CaptureSourceType::kAny;
-
-  GDBusConnection* connection_ = nullptr;
-  GDBusProxy* proxy_ = nullptr;
-  gchar* portal_handle_ = nullptr;
-  gchar* session_handle_ = nullptr;
-  gchar* sources_handle_ = nullptr;
-  gchar* start_handle_ = nullptr;
-  guint session_request_signal_id_ = 0;
-  guint sources_request_signal_id_ = 0;
-  guint start_request_signal_id_ = 0;
-
-  DesktopSize desktop_size_ = {};
-  guint32 stream_id_ = 0;
-
-  int32_t id_;
-
-  bool already_used_ = false;
-  bool portal_init_failed_ = false;
-  bool web_streaming_ = false;
-  std::vector<rtc::Callback1<void, bool>> callbacks_;
-  rtc::Callback2<void, bool, int32_t> pw_callback_;
-
-  std::unique_ptr<PipeWireBase> pw_base_;
-};
-
-// Structure which is used as user_data property in GLib async calls, where we
-// need to pass two values. One is ID of the web page requesting screen sharing
-// and the other is pointer to the XdgDesktopPortalBase object.
-class UserData {
- public:
-  UserData(int32_t id, XdgDesktopPortalBase* xdp) {
-    data_id_ = id;
-    xdp_ = xdp;
-  }
-
-  int32_t GetDataId() const { return data_id_; }
-  XdgDesktopPortalBase* GetXdgDesktopPortalBase() const { return xdp_; }
-
- private:
-  int32_t data_id_ = 0;
-  XdgDesktopPortalBase* xdp_ = nullptr;
-};
-
-}  // namespace webrtc
-
-#endif  // MODULES_DESKTOP_CAPTURE_LINUX_XDG_DESKTOP_PORTAL_BASE_H_
diff --git a/modules/desktop_capture/screen_capturer_linux.cc b/modules/desktop_capture/screen_capturer_linux.cc
index 71a81b9..82dbae4 100644
--- a/modules/desktop_capture/screen_capturer_linux.cc
+++ b/modules/desktop_capture/screen_capturer_linux.cc
@@ -14,7 +14,7 @@
 #include "modules/desktop_capture/desktop_capturer.h"
 
 #if defined(WEBRTC_USE_PIPEWIRE)
-#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
+#include "modules/desktop_capture/linux/screen_capturer_pipewire.h"
 #endif  // defined(WEBRTC_USE_PIPEWIRE)
 
 #if defined(WEBRTC_USE_X11)
@@ -28,7 +28,7 @@
     const DesktopCaptureOptions& options) {
 #if defined(WEBRTC_USE_PIPEWIRE)
   if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland()) {
-    return BaseCapturerPipeWire::CreateRawScreenCapturer(options);
+    return ScreenCapturerPipeWire::CreateRawScreenCapturer(options);
   }
 #endif  // defined(WEBRTC_USE_PIPEWIRE)
 
diff --git a/modules/desktop_capture/window_capturer_linux.cc b/modules/desktop_capture/window_capturer_linux.cc
index c0b6154..41dbf83 100644
--- a/modules/desktop_capture/window_capturer_linux.cc
+++ b/modules/desktop_capture/window_capturer_linux.cc
@@ -14,7 +14,7 @@
 #include "modules/desktop_capture/desktop_capturer.h"
 
 #if defined(WEBRTC_USE_PIPEWIRE)
-#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
+#include "modules/desktop_capture/linux/window_capturer_pipewire.h"
 #endif  // defined(WEBRTC_USE_PIPEWIRE)
 
 #if defined(WEBRTC_USE_X11)
@@ -28,7 +28,7 @@
     const DesktopCaptureOptions& options) {
 #if defined(WEBRTC_USE_PIPEWIRE)
   if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland()) {
-    return BaseCapturerPipeWire::CreateRawWindowCapturer(options);
+    return WindowCapturerPipeWire::CreateRawWindowCapturer(options);
   }
 #endif  // defined(WEBRTC_USE_PIPEWIRE)