diff --git a/src/screencast/screencast_scp_shm.c b/src/screencast/screencast_scp_shm.c
new file mode 100644
index 00000000..5171bec7
--- /dev/null
+++ b/src/screencast/screencast_scp_shm.c
@@ -0,0 +1,29 @@
+#include "screencast_scp_shm.h"
+
+enum spa_video_format xdpw_format_pw_from_wl_shm(
+		struct xdpw_frame_scp_shm *frame) {
+	switch (frame->format) {
+	case WL_SHM_FORMAT_ARGB8888:
+		return SPA_VIDEO_FORMAT_BGRA;
+	case WL_SHM_FORMAT_XRGB8888:
+		return SPA_VIDEO_FORMAT_BGRx;
+	case WL_SHM_FORMAT_RGBA8888:
+		return SPA_VIDEO_FORMAT_ABGR;
+	case WL_SHM_FORMAT_RGBX8888:
+		return SPA_VIDEO_FORMAT_xBGR;
+	case WL_SHM_FORMAT_ABGR8888:
+		return SPA_VIDEO_FORMAT_RGBA;
+	case WL_SHM_FORMAT_XBGR8888:
+		return SPA_VIDEO_FORMAT_RGBx;
+	case WL_SHM_FORMAT_BGRA8888:
+		return SPA_VIDEO_FORMAT_ARGB;
+	case WL_SHM_FORMAT_BGRX8888:
+		return SPA_VIDEO_FORMAT_xRGB;
+	case WL_SHM_FORMAT_NV12:
+		return SPA_VIDEO_FORMAT_NV12;
+	default:
+		abort();
+	}
+}
+
+