void ff_vorbis_floor1_render_list(vorbis_floor1_entry * list, int values,
uint16_t *y_list, int *flag,
int multiplier, float * out, int samples);
-void vorbis_inverse_coupling(float *mag, float *ang, int blocksize);
+void ff_vorbis_inverse_coupling(float *mag, float *ang, int blocksize);
#define ilog(i) av_log2(2*(i))