vorbis: Add ff_ prefix to nonstatic symbols

Signed-off-by: Martin Storsjö <martin@martin.st>

libavcodec/dsputil.c

@@ -3016,7 +3016,7 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx)
     c->add_8x8basis= add_8x8basis_c;
 
 #if CONFIG_VORBIS_DECODER
-    c->vorbis_inverse_coupling = vorbis_inverse_coupling;
+    c->vorbis_inverse_coupling = ff_vorbis_inverse_coupling;
 #endif
 #if CONFIG_AC3_DECODER
     c->ac3_downmix = ff_ac3_downmix_c;

libavcodec/vorbis.h

@@ -42,7 +42,7 @@ int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, unsigned num);
 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))
 

libavcodec/vorbisdec.c

@@ -1447,7 +1447,7 @@ static inline int vorbis_residue_decode(vorbis_context *vc, vorbis_residue *vr,
     }
 }
 
-void vorbis_inverse_coupling(float *mag, float *ang, int blocksize)
+void ff_vorbis_inverse_coupling(float *mag, float *ang, int blocksize)
 {
     int i;
     for (i = 0;  i < blocksize;  i++) {