diff --git a/host/platform/Linux/capture/XCB/src/xcb.c b/host/platform/Linux/capture/XCB/src/xcb.c
index d9947a0a..031e65a2 100644
--- a/host/platform/Linux/capture/XCB/src/xcb.c
+++ b/host/platform/Linux/capture/XCB/src/xcb.c
@@ -85,7 +85,11 @@ static void xcb_initOptions(void)
   option_register(options);
 }
 
-static bool xcb_create(CaptureGetPointerBuffer getPointerBufferFn, CapturePostPointerBuffer postPointerBufferFn)
+static bool xcb_create(
+  CaptureGetPointerBuffer getPointerBufferFn,
+  CapturePostPointerBuffer postPointerBufferFn,
+  unsigned                 frameBuffers
+)
 {
   DEBUG_ASSERT(!this);
   this             = calloc(1, sizeof(*this));
@@ -106,7 +110,7 @@ static bool xcb_create(CaptureGetPointerBuffer getPointerBufferFn, CapturePostPo
   return true;
 }
 
-static bool xcb_init(void)
+static bool xcb_init(void * ivshmemBase, unsigned * alignSize)
 {
   DEBUG_ASSERT(this);
   DEBUG_ASSERT(!this->initialized);
@@ -241,7 +245,9 @@ static void xcb_free(void)
   this = NULL;
 }
 
-static CaptureResult xcb_capture(void)
+static CaptureResult xcb_capture(
+  unsigned frameBufferIndex,
+  FrameBuffer * frame)
 {
   DEBUG_ASSERT(this);
   DEBUG_ASSERT(this->initialized);
@@ -266,8 +272,10 @@ static CaptureResult xcb_capture(void)
   return CAPTURE_RESULT_OK;
 }
 
-static CaptureResult xcb_waitFrame(CaptureFrame * frame,
-    const size_t maxFrameSize)
+static CaptureResult xcb_waitFrame(
+  unsigned frameBufferIndex,
+  CaptureFrame * frame,
+  const size_t maxFrameSize)
 {
   lgWaitEvent(this->frameEvent, TIMEOUT_INFINITE);
 
@@ -290,7 +298,10 @@ static CaptureResult xcb_waitFrame(CaptureFrame * frame,
   return CAPTURE_RESULT_OK;
 }
 
-static CaptureResult xcb_getFrame(FrameBuffer * frame, int frameIndex)
+static CaptureResult xcb_getFrame(
+  unsigned frameBufferIndex,
+  FrameBuffer  * frame,
+  const size_t maxFrameSize)
 {
   DEBUG_ASSERT(this);
   DEBUG_ASSERT(this->initialized);
@@ -371,7 +382,7 @@ static int pointerThread(void * unused)
       pointer.height  = curReply->height;
       pointer.pitch   = curReply->width * 4;
 
-      this->postPointerBufferFn(pointer);
+      this->postPointerBufferFn(&pointer);
     }
 
     free(curReply);
diff --git a/host/platform/Linux/capture/pipewire/src/pipewire.c b/host/platform/Linux/capture/pipewire/src/pipewire.c
index 4c4e5c2d..6b53396e 100644
--- a/host/platform/Linux/capture/pipewire/src/pipewire.c
+++ b/host/platform/Linux/capture/pipewire/src/pipewire.c
@@ -68,7 +68,11 @@ static const char * pipewire_getName(void)
   return "PipeWire";
 }
 
-static bool pipewire_create(CaptureGetPointerBuffer getPointerBufferFn, CapturePostPointerBuffer postPointerBufferFn)
+static bool pipewire_create(
+  CaptureGetPointerBuffer getPointerBufferFn,
+  CapturePostPointerBuffer postPointerBufferFn,
+  unsigned                 frameBuffers
+)
 {
   DEBUG_ASSERT(!this);
   pw_init(NULL, NULL);
@@ -231,7 +235,7 @@ static const struct pw_stream_events streamEvents = {
   .param_changed = streamParamChangedCallback,
 };
 
-static bool pipewire_init(void)
+static bool pipewire_init(void * ivshmemBase, unsigned * alignSize)
 {
   DEBUG_ASSERT(this);
   this->stop = false;
@@ -400,7 +404,9 @@ static void pipewire_free(void)
   this = NULL;
 }
 
-static CaptureResult pipewire_capture(void)
+static CaptureResult pipewire_capture(
+  unsigned frameBufferIndex,
+  FrameBuffer * frame)
 {
   int result;
 
@@ -424,8 +430,10 @@ restart:
   return CAPTURE_RESULT_OK;
 }
 
-static CaptureResult pipewire_waitFrame(CaptureFrame * frame,
-    const size_t maxFrameSize)
+static CaptureResult pipewire_waitFrame(
+  unsigned frameBufferIndex,
+  CaptureFrame * frame,
+  const size_t maxFrameSize)
 {
   if (this->stop)
     return CAPTURE_RESULT_REINIT;
@@ -454,7 +462,10 @@ static CaptureResult pipewire_waitFrame(CaptureFrame * frame,
   return CAPTURE_RESULT_OK;
 }
 
-static CaptureResult pipewire_getFrame(FrameBuffer * frame, int frameIndex)
+static CaptureResult pipewire_getFrame(
+  unsigned frameBufferIndex,
+  FrameBuffer  * frame,
+  const size_t maxFrameSize)
 {
   if (this->stop || !this->frameData)
     return CAPTURE_RESULT_REINIT;