diff --git a/spa/include/spa/buffer/buffer.h b/spa/include/spa/buffer/buffer.h
index 13ed8d175..8c02e9e08 100644
--- a/spa/include/spa/buffer/buffer.h
+++ b/spa/include/spa/buffer/buffer.h
@@ -65,6 +65,9 @@ struct spa_data {
 #define SPA_DATA_FLAG_WRITABLE	(1u<<1)	/**< data is writable */
 #define SPA_DATA_FLAG_DYNAMIC	(1u<<2)	/**< data pointer can be changed */
 #define SPA_DATA_FLAG_READWRITE	(SPA_DATA_FLAG_READABLE|SPA_DATA_FLAG_WRITABLE)
+#define SPA_DATA_FLAG_MAPPABLE	(1u<<3)	/**< data is mappable with simple mmap/munmap. Some memory
+					  *  types are not simply mappable (DmaBuf) unless explicitly
+					  *  specified with this flag. */
 	uint32_t flags;			/**< data flags */
 	int64_t fd;			/**< optional fd for data */
 	uint32_t mapoffset;		/**< offset to map fd at */
diff --git a/spa/plugins/libcamera/libcamera-utils.cpp b/spa/plugins/libcamera/libcamera-utils.cpp
index c197248d3..4604f0000 100644
--- a/spa/plugins/libcamera/libcamera-utils.cpp
+++ b/spa/plugins/libcamera/libcamera-utils.cpp
@@ -805,6 +805,7 @@ mmap_init(struct impl *impl, struct port *port,
 
 			if (port->memtype == SPA_DATA_DmaBuf ||
 			    port->memtype == SPA_DATA_MemFd) {
+				d[j].flags |= SPA_DATA_FLAG_MAPPABLE;
 				d[j].fd = bufs[i]->planes()[j].fd.get();
 				spa_log_debug(impl->log, "Got fd = %ld for buffer: #%d", d[j].fd, i);
 				d[j].data = NULL;
diff --git a/spa/plugins/v4l2/v4l2-utils.c b/spa/plugins/v4l2/v4l2-utils.c
index 1ed46d62c..56ab07144 100644
--- a/spa/plugins/v4l2/v4l2-utils.c
+++ b/spa/plugins/v4l2/v4l2-utils.c
@@ -1652,7 +1652,7 @@ again:
 				d[0].type = SPA_DATA_DmaBuf;
 			else
 				d[0].type = SPA_DATA_MemFd;
-			d[0].flags = SPA_DATA_FLAG_READABLE;
+			d[0].flags = SPA_DATA_FLAG_READABLE | SPA_DATA_FLAG_MAPPABLE;
 			d[0].fd = expbuf.fd;
 			d[0].data = NULL;
 			SPA_FLAG_SET(b->flags, BUFFER_FLAG_ALLOCATED);
diff --git a/src/pipewire/filter.h b/src/pipewire/filter.h
index bb5081b70..b0ea4a2ac 100644
--- a/src/pipewire/filter.h
+++ b/src/pipewire/filter.h
@@ -120,7 +120,8 @@ enum pw_filter_flags {
 
 enum pw_filter_port_flags {
 	PW_FILTER_PORT_FLAG_NONE		= 0,		/**< no flags */
-	PW_FILTER_PORT_FLAG_MAP_BUFFERS		= (1 << 0),	/**< mmap the buffers except DmaBuf */
+	PW_FILTER_PORT_FLAG_MAP_BUFFERS		= (1 << 0),	/**< mmap the buffers except DmaBuf that is not
+								  *  explicitly marked as mappable. */
 	PW_FILTER_PORT_FLAG_ALLOC_BUFFERS	= (1 << 1),	/**< the application will allocate buffer
 								  *  memory. In the add_buffer event, the
 								  *  data of the buffer should be set */
diff --git a/src/pipewire/stream.c b/src/pipewire/stream.c
index 51f6d2f06..696375b89 100644
--- a/src/pipewire/stream.c
+++ b/src/pipewire/stream.c
@@ -979,7 +979,8 @@ static int impl_port_use_buffers(void *object,
 		if (SPA_FLAG_IS_SET(impl_flags, PW_STREAM_FLAG_MAP_BUFFERS)) {
 			for (j = 0; j < buffers[i]->n_datas; j++) {
 				struct spa_data *d = &buffers[i]->datas[j];
-				if ((mappable_dataTypes & (1<<d->type)) > 0) {
+				if (SPA_FLAG_IS_SET(d->flags, SPA_DATA_FLAG_MAPPABLE) ||
+				    (mappable_dataTypes & (1<<d->type)) > 0) {
 					if ((res = map_data(impl, d, prot)) < 0)
 						return res;
 					SPA_FLAG_SET(b->flags, BUFFER_FLAG_MAPPED);
diff --git a/src/pipewire/stream.h b/src/pipewire/stream.h
index bea90b458..dd172d74e 100644
--- a/src/pipewire/stream.h
+++ b/src/pipewire/stream.h
@@ -371,7 +371,8 @@ enum pw_stream_flags {
 	PW_STREAM_FLAG_INACTIVE		= (1 << 1),	/**< start the stream inactive,
 							  *  pw_stream_set_active() needs to be
 							  *  called explicitly */
-	PW_STREAM_FLAG_MAP_BUFFERS	= (1 << 2),	/**< mmap the buffers except DmaBuf */
+	PW_STREAM_FLAG_MAP_BUFFERS	= (1 << 2),	/**< mmap the buffers except DmaBuf that is not
+							  *  explicitly marked as mappable. */
 	PW_STREAM_FLAG_DRIVER		= (1 << 3),	/**< be a driver */
 	PW_STREAM_FLAG_RT_PROCESS	= (1 << 4),	/**< call process from the realtime
 							  *  thread. You MUST use RT safe functions