Add support for PipeWire 0.3

1 files changed, 821 insertions, 0 deletions

diff --git a/firefox-pipewire-0-3.patch b/firefox-pipewire-0-3.patch
new file mode 100644
index 0000000..7aa06b9
--- /dev/null
+++ b/firefox-pipewire-0-3.patch
@@ -0,0 +1,821 @@
+diff --git a/config/system-headers.mozbuild b/config/system-headers.mozbuild
+index 2081d0c683a4..641133bf1ea4 100644
+--- a/config/system-headers.mozbuild
++++ b/config/system-headers.mozbuild
+@@ -314,6 +314,7 @@ system_headers = [
+     'Gestalt.h',
+     'getopt.h',
+     'gio/gio.h',
++    'gio/gunixfdlist.h',
+     'glibconfig.h',
+     'glib.h',
+     'glib-object.h',
+@@ -607,6 +608,7 @@ system_headers = [
+     'Pgenerr.h',
+     'PGenErr.h',
+     'Ph.h',
++    'pipewire/pipewire.h',
+     'pixman.h',
+     'pk11func.h',
+     'pk11pqg.h',
+diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build b/media/webrtc/trunk/webrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
+index 90b40431c7e4..d844aa79d591 100644
+--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
++++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
+@@ -194,6 +194,30 @@ if CONFIG["OS_TARGET"] == "Linux":
+         "/media/webrtc/trunk/webrtc/modules/desktop_capture/window_capturer_linux.cc"
+     ]
+ 
++# PipeWire specific files
++if CONFIG["OS_TARGET"] == "Linux":
++
++    DEFINES["WEBRTC_USE_PIPEWIRE"] = "1"
++
++    OS_LIBS += [
++        "rt",
++        "pipewire-0.3",
++        "glib-2.0",
++        "gio-2.0",
++        "gobject-2.0"
++    ]
++
++    CXXFLAGS += CONFIG['TK_CFLAGS']
++    CXXFLAGS += [ "-I/usr/include/pipewire-0.3" ]
++    CXXFLAGS += [ "-I/usr/include/spa-0.2" ]
++
++    UNIFIED_SOURCES += [
++        "/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc",
++        "/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc",
++        "/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc"
++    ]
++
++
+ if CONFIG["OS_TARGET"] == "NetBSD":
+ 
+     DEFINES["USE_X11"] = "1"
+diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/desktop_capture_options.h b/media/webrtc/trunk/webrtc/modules/desktop_capture/desktop_capture_options.h
+index 1eb8ead26efa..316468eed1fc 100644
+--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/desktop_capture_options.h
++++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/desktop_capture_options.h
+@@ -141,7 +141,7 @@ class DesktopCaptureOptions {
+   bool disable_effects_ = true;
+   bool detect_updated_region_ = false;
+ #if defined(WEBRTC_USE_PIPEWIRE)
+-  bool allow_pipewire_ = false;
++  bool allow_pipewire_ = true;
+ #endif
+ };
+ 
+diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
+index 379341c833de..53e2683df2e8 100644
+--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
++++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
+@@ -15,8 +15,11 @@
+ 
+ #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/mman.h>
++#include <sys/ioctl.h>
++#include <sys/syscall.h>
+ 
+ #include <memory>
+ #include <utility>
+@@ -36,31 +39,36 @@ const char kSessionInterfaceName[] = "org.freedesktop.portal.Session";
+ const char kRequestInterfaceName[] = "org.freedesktop.portal.Request";
+ const char kScreenCastInterfaceName[] = "org.freedesktop.portal.ScreenCast";
+ 
+-// 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.";
++// static
++void BaseCapturerPipeWire::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;
+-    case PW_REMOTE_STATE_UNCONNECTED:
+-      RTC_LOG(LS_INFO) << "PipeWire remote state: unconnected.";
++    } else {
+       break;
++    }
+   }
+ }
+ 
++// static
++void BaseCapturerPipeWire::OnCoreError(void *data,
++                                       uint32_t id,
++                                       int seq,
++                                       int res,
++                                       const char *message) {
++  RTC_LOG(LS_ERROR) << "core error: " << message;
++}
++
+ // static
+ void BaseCapturerPipeWire::OnStreamStateChanged(void* data,
+                                                 pw_stream_state old_state,
+@@ -73,76 +81,54 @@ void BaseCapturerPipeWire::OnStreamStateChanged(void* data,
+     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:
++    case PW_STREAM_STATE_UNCONNECTED:
++    case PW_STREAM_STATE_CONNECTING:
+       break;
+   }
+ }
+ 
+ // static
+-void BaseCapturerPipeWire::OnStreamFormatChanged(void* data,
+-                                                 const struct spa_pod* format) {
++void BaseCapturerPipeWire::OnStreamParamChanged(void *data, uint32_t id,
++                                                const struct spa_pod *format) {
+   BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
+   RTC_DCHECK(that);
+ 
+-  RTC_LOG(LS_INFO) << "PipeWire stream format changed.";
++  RTC_LOG(LS_INFO) << "PipeWire stream param changed.";
+ 
+-  if (!format) {
+-    pw_stream_finish_format(that->pw_stream_, /*res=*/0, /*params=*/nullptr,
+-                            /*n_params=*/0);
++  if (!format || id != SPA_PARAM_Format) {
+     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);
++  spa_format_video_raw_parse(format, &that->spa_video_format_);
+ 
+-  auto width = that->spa_video_format_->size.width;
+-  auto height = that->spa_video_format_->size.height;
++  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[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);
++  const struct spa_pod* params[3];
++  params[0] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
++              SPA_TYPE_OBJECT_ParamBuffers, SPA_PARAM_Buffers,
++              SPA_PARAM_BUFFERS_size, SPA_POD_Int(size),
++              SPA_PARAM_BUFFERS_stride, SPA_POD_Int(stride),
++              SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(8, 1, 32)));
++  params[1] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
++              SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
++              SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header),
++              SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header))));
++  params[2] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
++              SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
++              SPA_PARAM_META_type, SPA_POD_Id (SPA_META_VideoCrop),
++              SPA_PARAM_META_size, SPA_POD_Int (sizeof(struct spa_meta_region))));
++  pw_stream_update_params(that->pw_stream_, params, 3);
+ }
+ 
+ // static
+@@ -150,15 +136,25 @@ void BaseCapturerPipeWire::OnStreamProcess(void* data) {
+   BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
+   RTC_DCHECK(that);
+ 
+-  pw_buffer* buf = nullptr;
++  struct pw_buffer *next_buffer;
++  struct pw_buffer *buffer = nullptr;
+ 
+-  if (!(buf = pw_stream_dequeue_buffer(that->pw_stream_))) {
++  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(buf);
++  that->HandleBuffer(buffer);
+ 
+-  pw_stream_queue_buffer(that->pw_stream_, buf);
++  pw_stream_queue_buffer(that->pw_stream_, buffer);
+ }
+ 
+ BaseCapturerPipeWire::BaseCapturerPipeWire(CaptureSourceType source_type)
+@@ -169,38 +165,22 @@ BaseCapturerPipeWire::~BaseCapturerPipeWire() {
+     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_disconnect(pw_core_);
+   }
+ 
+-  if (pw_core_) {
+-    pw_core_destroy(pw_core_);
++  if (pw_context_) {
++    pw_context_destroy(pw_context_);
+   }
+ 
+   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_);
+   }
+@@ -250,27 +230,35 @@ void BaseCapturerPipeWire::InitPortal() {
+ void BaseCapturerPipeWire::InitPipeWire() {
+   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);
++  pw_main_loop_ = pw_thread_loop_new("pipewire-main-loop", nullptr);
++  pw_context_ = pw_context_new(pw_thread_loop_get_loop(pw_main_loop_), nullptr, 0);
++  if (!pw_context_) {
++    RTC_LOG(LS_ERROR) << "Failed to create PipeWire context";
++    return;
++  }
+ 
+-  InitPipeWireTypes();
++  pw_core_ = pw_context_connect(pw_context_, nullptr, 0);
++  if (!pw_core_) {
++    RTC_LOG(LS_ERROR) << "Failed to connect PipeWire context";
++    return;
++  }
+ 
+   // Initialize event handlers, remote end and stream-related.
+-  pw_remote_events_.version = PW_VERSION_REMOTE_EVENTS;
+-  pw_remote_events_.state_changed = &OnStateChanged;
++  pw_core_events_.version = PW_VERSION_CORE_EVENTS;
++  pw_core_events_.error = &OnCoreError;
+ 
+   pw_stream_events_.version = PW_VERSION_STREAM_EVENTS;
+   pw_stream_events_.state_changed = &OnStreamStateChanged;
+-  pw_stream_events_.format_changed = &OnStreamFormatChanged;
++  pw_stream_events_.param_changed = &OnStreamParamChanged;
+   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_);
++  pw_core_add_listener(pw_core_, &spa_core_listener_, &pw_core_events_, this);
++
++  pw_stream_ = CreateReceivingStream();
++  if (!pw_stream_) {
++    RTC_LOG(LS_ERROR) << "Failed to create PipeWire stream";
++    return;
++  }
+ 
+   if (pw_thread_loop_start(pw_main_loop_) < 0) {
+     RTC_LOG(LS_ERROR) << "Failed to start main PipeWire loop";
+@@ -278,81 +266,120 @@ void BaseCapturerPipeWire::InitPipeWire() {
+   }
+ }
+ 
+-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() {
++pw_stream* 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_rectangle pwMaxScreenBounds = spa_rectangle{INT32_MAX, INT32_MAX};
+ 
+-  spa_fraction pwFrameRateMin = spa_fraction{0, 1};
+-  spa_fraction pwFrameRateMax = spa_fraction{60, 1};
++  auto stream = pw_stream_new(pw_core_, "webrtc-pipewire-stream", nullptr);
+ 
+-  pw_properties* reuseProps = pw_properties_new("pipewire.client.reuse", "1",
+-                                                /*end of varargs*/ nullptr);
+-  pw_stream_ = pw_stream_new(pw_remote_, "webrtc-consume-stream", reuseProps);
++  if (!stream) {
++    RTC_LOG(LS_ERROR) << "Could not create receiving stream.";
++    return nullptr;
++  }
+ 
+   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);
++  const spa_pod* params[2];
++  spa_pod_builder builder = SPA_POD_BUILDER_INIT(buffer, sizeof (buffer));
++
++  params[0] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
++              SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
++              SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_video),
++              SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
++              SPA_FORMAT_VIDEO_format, SPA_POD_CHOICE_ENUM_Id(5, SPA_VIDEO_FORMAT_BGRx, SPA_VIDEO_FORMAT_RGBx, SPA_VIDEO_FORMAT_RGBA,
++                                                                 SPA_VIDEO_FORMAT_BGRx, SPA_VIDEO_FORMAT_BGRA),
++              SPA_FORMAT_VIDEO_size, SPA_POD_CHOICE_RANGE_Rectangle(&pwMinScreenBounds,
++                                                                    &pwMinScreenBounds,
++                                                                    &pwMaxScreenBounds),
++              0));
++  pw_stream_add_listener(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) {
++      PW_STREAM_FLAG_AUTOCONNECT | PW_STREAM_FLAG_INACTIVE);
++
++  if (pw_stream_connect(stream, PW_DIRECTION_INPUT, pw_stream_node_id_, PW_STREAM_FLAG_AUTOCONNECT, params, 1) != 0) {
+     RTC_LOG(LS_ERROR) << "Could not connect receiving stream.";
+     portal_init_failed_ = true;
+-    return;
+   }
++
++  return stream;
+ }
+ 
+ void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) {
++  struct spa_meta_region* video_crop;
+   spa_buffer* spaBuffer = buffer->buffer;
+-  void* src = nullptr;
++  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 == SPA_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));
++    src = SPA_MEMBER(map, spaBuffer->datas[0].mapoffset, uint8_t);
++  } else if (spaBuffer->datas[0].type == SPA_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));
++    SyncDmaBuf(fd, DMA_BUF_SYNC_START);
++
++    src = SPA_MEMBER(map, spaBuffer->datas[0].mapoffset, uint8_t);
++  } else if (spaBuffer->datas[0].type == SPA_DATA_MemPtr) {
++    map = nullptr;
++    src = static_cast<uint8_t*>(spaBuffer->datas[0].data);
++  } else {
++    return;
++  }
+ 
+-  if (!(src = spaBuffer->datas[0].data)) {
++  if (!src) {
+     return;
+   }
+ 
+-  uint32_t maxSize = spaBuffer->datas[0].maxsize;
+-  int32_t srcStride = spaBuffer->datas[0].chunk->stride;
++  DesktopSize prev_crop_size = DesktopSize(0, 0);
++  if (video_crop_size_initialized_) {
++    prev_crop_size = video_crop_size_;
++  }  
++
++  if ((video_crop = static_cast<struct spa_meta_region*>(
++           spa_buffer_find_meta_data(spaBuffer, SPA_META_VideoCrop, sizeof(*video_crop))))) {
++    RTC_DCHECK(video_crop->region.size.width <= desktop_size_.width() &&
++               video_crop->region.size.height <= desktop_size_.height());
++    if ((video_crop->region.size.width != desktop_size_.width() ||
++        video_crop->region.size.height != desktop_size_.height()) && video_crop->region.size.width && video_crop->region.size.height) {
++      video_crop_size_ = DesktopSize(video_crop->region.size.width, video_crop->region.size.height);
++      video_crop_size_initialized_ = true;
++    } else {
++      video_crop_size_initialized_ = false;
++    }
++  } else {
++    video_crop_size_initialized_ = false;
++  }
++
++  size_t frame_size;
++  if (video_crop_size_initialized_) {
++    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_initialized_ && !video_crop_size_.equals(prev_crop_size))) {
++    current_frame_ = std::make_unique<uint8_t[]>(frame_size);
++  }
++  RTC_DCHECK(current_frame_ != nullptr);
++
++  const int32_t dstStride = video_crop_size_initialized_
++                                ? 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
+@@ -361,21 +388,40 @@ void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) {
+     return;
+   }
+ 
+-  if (!current_frame_) {
+-    current_frame_ = static_cast<uint8_t*>(malloc(maxSize));
++  dst = current_frame_.get();
++
++  // Adjust source content based on crop video position
++  if (video_crop_size_initialized_ &&
++      (video_crop->region.position.y + video_crop_size_.height() <= desktop_size_.height())) {
++    for (int i = 0; i < video_crop->region.position.y; ++i) {
++      src += srcStride;
++    }
++  }
++  const int xOffset =
++      video_crop_size_initialized_ && (video_crop->region.position.x + video_crop_size_.width() <=
++                           desktop_size_.width())
++          ? video_crop->region.position.x * kBytesPerPixel
++          : 0;
++  const int height = video_crop_size_initialized_ ? video_crop_size_.height() : 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 == SPA_VIDEO_FORMAT_RGBx ||
++        spa_video_format_.format == SPA_VIDEO_FORMAT_RGBA) {
++      ConvertRGBxToBGRx(dst, dstStride);
++    }
++    src += srcStride - xOffset;
++    dst += dstStride;
+   }
+-  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);
++  if (map) {
++    if (spaBuffer->datas[0].type == SPA_DATA_DmaBuf) {
++      SyncDmaBuf(spaBuffer->datas[0].fd, DMA_BUF_SYNC_END);
++    }
++    munmap(map, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset);
+   }
+ }
+ 
+@@ -725,10 +771,7 @@ void BaseCapturerPipeWire::OnStartRequestResponseSignal(
+       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);
+-
++      that->pw_stream_node_id_ = stream_id;
+       g_variant_unref(options);
+       g_variant_unref(variant);
+     }
+@@ -813,10 +856,15 @@ void BaseCapturerPipeWire::CaptureFrame() {
+     return;
+   }
+ 
+-  std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(desktop_size_));
++  DesktopSize frame_size = desktop_size_;
++  if (video_crop_size_initialized_) {
++    frame_size = video_crop_size_;
++  }
++  
++  std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(frame_size));
+   result->CopyPixelsFrom(
+-      current_frame_, (desktop_size_.width() * kBytesPerPixel),
+-      DesktopRect::MakeWH(desktop_size_.width(), desktop_size_.height()));
++      current_frame_.get(), (frame_size.width() * kBytesPerPixel),
++      DesktopRect::MakeWH(frame_size.width(), frame_size.height()));
+   if (!result) {
+     callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
+     return;
+@@ -837,4 +885,22 @@ bool BaseCapturerPipeWire::SelectSource(SourceId id) {
+   return true;
+ }
+ 
++// static
++std::unique_ptr<DesktopCapturer>
++BaseCapturerPipeWire::CreateRawScreenCapturer(
++    const DesktopCaptureOptions& options) {
++  std::unique_ptr<BaseCapturerPipeWire> capturer =
++      std::make_unique<BaseCapturerPipeWire>(BaseCapturerPipeWire::CaptureSourceType::kAny);
++  return std::move(capturer);}
++
++// static
++std::unique_ptr<DesktopCapturer>
++BaseCapturerPipeWire::CreateRawWindowCapturer(
++    const DesktopCaptureOptions& options) {
++
++  std::unique_ptr<BaseCapturerPipeWire> capturer =
++      std::make_unique<BaseCapturerPipeWire>(BaseCapturerPipeWire::CaptureSourceType::kAny);
++  return std::move(capturer);
++}
++
+ }  // namespace webrtc
+diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
+index 56b101acbaa6..de54157d1a2a 100644
+--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
++++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
+@@ -22,17 +22,13 @@
+ 
+ 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 BaseCapturerPipeWire : public DesktopCapturer {
+  public:
+-  enum CaptureSourceType { Screen = 1, Window };
++  enum CaptureSourceType : uint32_t {
++    kScreen = 0b01,
++    kWindow = 0b10,
++    kAny = 0b11
++  };
+ 
+   explicit BaseCapturerPipeWire(CaptureSourceType source_type);
+   ~BaseCapturerPipeWire() override;
+@@ -43,28 +39,32 @@ class BaseCapturerPipeWire : public DesktopCapturer {
+   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_context* pw_context_ = nullptr;
+   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_core_listener_ = {};
+   spa_hook spa_stream_listener_ = {};
+-  spa_hook spa_remote_listener_ = {};
+ 
++  pw_core_events pw_core_events_ = {};
+   pw_stream_events pw_stream_events_ = {};
+-  pw_remote_events pw_remote_events_ = {};
+ 
+-  spa_video_info_raw* spa_video_format_ = nullptr;
++  struct spa_video_info_raw spa_video_format_;
+ 
++  guint32 pw_stream_node_id_ = 0;
+   gint32 pw_fd_ = -1;
+ 
+   CaptureSourceType capture_source_type_ =
+-      BaseCapturerPipeWire::CaptureSourceType::Screen;
++      BaseCapturerPipeWire::CaptureSourceType::kAny;
+ 
+   // <-- end of PipeWire types
+ 
+@@ -78,33 +78,37 @@ class BaseCapturerPipeWire : public DesktopCapturer {
+   guint sources_request_signal_id_ = 0;
+   guint start_request_signal_id_ = 0;
+ 
++  bool video_crop_size_initialized_ = false;
++  DesktopSize video_crop_size_;;
+   DesktopSize desktop_size_ = {};
+   DesktopCaptureOptions options_ = {};
+ 
+-  uint8_t* current_frame_ = nullptr;
++  std::unique_ptr<uint8_t[]> current_frame_;
+   Callback* callback_ = nullptr;
+ 
+   bool portal_init_failed_ = false;
+ 
+   void InitPortal();
+   void InitPipeWire();
+-  void InitPipeWireTypes();
+ 
+-  void CreateReceivingStream();
++  pw_stream* 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 SyncDmaBuf(int fd, uint64_t start_or_end);
++  static void OnCoreError(void *data,
++                          uint32_t id,
++                          int seq,
++                          int res,
++                          const char *message);
++  static void OnStreamParamChanged(void *data,
++                                   uint32_t id,
++                                   const struct spa_pod *format);
+   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);
+ 
+diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc
+index 26956fc67dc8..3813d697bb38 100644
+--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc
++++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc
+@@ -15,7 +15,7 @@
+ namespace webrtc {
+ 
+ ScreenCapturerPipeWire::ScreenCapturerPipeWire()
+-    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::Screen) {}
++    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::kScreen) {}
+ ScreenCapturerPipeWire::~ScreenCapturerPipeWire() {}
+ 
+ // static
+diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc
+index 35436475cb4d..c43a1f1a0c4e 100644
+--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc
++++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc
+@@ -15,7 +15,7 @@
+ namespace webrtc {
+ 
+ WindowCapturerPipeWire::WindowCapturerPipeWire()
+-    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::Window) {}
++    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::kWindow) {}
+ WindowCapturerPipeWire::~WindowCapturerPipeWire() {}
+ 
+ // static
+diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/screen_capturer_linux.cc b/media/webrtc/trunk/webrtc/modules/desktop_capture/screen_capturer_linux.cc
+index cf8a9dd0e0db..d27fab8d28d9 100644
+--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/screen_capturer_linux.cc
++++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/screen_capturer_linux.cc
+@@ -26,7 +26,7 @@ std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawScreenCapturer(
+     const DesktopCaptureOptions& options) {
+ #if defined(WEBRTC_USE_PIPEWIRE)
+   if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland()) {
+-    return ScreenCapturerPipeWire::CreateRawScreenCapturer(options);
++    return BaseCapturerPipeWire::CreateRawScreenCapturer(options);
+   }
+ #endif  // defined(WEBRTC_USE_PIPEWIRE)
+ 
+diff --git a/media/webrtc/trunk/webrtc/modules/desktop_capture/window_capturer_linux.cc b/media/webrtc/trunk/webrtc/modules/desktop_capture/window_capturer_linux.cc
+index 82359e50c2db..bb9724cf7cc2 100644
+--- a/media/webrtc/trunk/webrtc/modules/desktop_capture/window_capturer_linux.cc
++++ b/media/webrtc/trunk/webrtc/modules/desktop_capture/window_capturer_linux.cc
+@@ -26,7 +26,7 @@ std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawWindowCapturer(
+     const DesktopCaptureOptions& options) {
+ #if defined(WEBRTC_USE_PIPEWIRE)
+   if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland()) {
+-    return WindowCapturerPipeWire::CreateRawWindowCapturer(options);
++    return BaseCapturerPipeWire::CreateRawWindowCapturer(options);
+   }
+ #endif  // defined(WEBRTC_USE_PIPEWIRE)
+