--- /dev/null
+#define STB_VORBIS_HEADER_ONLY
+#define STB_VORBIS_MAX_CHANNELS 2
+#include "submodules/stb/stb_vorbis.c"
+#include "vg_platform.h"
+#include "vg_m.h"
+
+/* extended by vg */
+int
+stb_vorbis_get_samples_float_interleaved_stereo( stb_vorbis *f, float *buffer,
+ int len );
+int
+stb_vorbis_get_samples_i16_downmixed( stb_vorbis *f, i16 *buffer, int len );