--- 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
@@ -42,7 +42,7 @@ const char kRequestInterfaceName[] = "org.freedesktop.portal.Request";
 const char kScreenCastInterfaceName[] = "org.freedesktop.portal.ScreenCast";
 
 
-static void BaseCapturerPipeWire::SyncDmaBuf(int fd, uint64_t start_or_end) {
+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;
@@ -386,21 +386,23 @@ void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) {
     map = nullptr;
     src = nullptr;
   } else if (spaBuffer->datas[0].type == pw_core_type_->data.MemFd) {
-    map = mmap(nullptr, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
-               PROT_READ, MAP_PRIVATE, spaBuffer->datas[0].fd, 0);
+    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 == pw_core_type_->data.DmaBuf) {
     int fd;
     fd = spaBuffer->datas[0].fd;
 
-    map = mmap (nullptr, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
-                PROT_READ, MAP_PRIVATE, fd, 0);
+    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 == pw_core_type_->data.MemPtr) {
     map = nullptr;
-    src = spaBuffer->datas[0].data;
+    src = static_cast<uint8_t*>(spaBuffer->datas[0].data);
   } else {
     return;
   }