core: add fake format for CVPixelBuffer

include/vlc_fourcc.h

@@ -336,6 +336,9 @@
 /* D3D11VA opaque video surface for use with D3D11 */
 #define VLC_CODEC_D3D11_OPAQUE    VLC_FOURCC('D','X','1','1')
 
+/* CVPixelBuffer opaque buffer type */
+#define VLC_CODEC_CVPX_OPAQUE     VLC_FOURCC('C','V','P','X')
+
 /* Image codec (video) */
 #define VLC_CODEC_PNG             VLC_FOURCC('p','n','g',' ')
 #define VLC_CODEC_PPM             VLC_FOURCC('p','p','m',' ')

src/misc/fourcc.c

@@ -633,6 +633,7 @@ static const struct
     { { VLC_CODEC_ANDROID_OPAQUE, VLC_CODEC_MMAL_OPAQUE,
         VLC_CODEC_D3D9_OPAQUE,    VLC_CODEC_D3D11_OPAQUE },
                                                FAKE_FMT() },
+    { { VLC_CODEC_CVPX_OPAQUE },               FAKE_FMT() },
 
     { { 0 },                                   FAKE_FMT() }
 };