diff --git a/libavcodec/mdec.c b/libavcodec/mdec.c
index 8b1384e30df85504576624e8c83faa375883f78c..37457676a66d8ce28fbac4f537f0673f29ddfab6 100644
--- a/libavcodec/mdec.c
+++ b/libavcodec/mdec.c
@@ -224,7 +224,7 @@ static av_cold int decode_init(AVCodecContext *avctx){
     AVFrame *p= &a->picture;
 
     mdec_common_init(avctx);
-    ff_init_vlcs();
+    ff_mpeg12_init_vlcs();
     ff_init_scantable(a->dsp.idct_permutation, &a->scantable, ff_zigzag_direct);
 
     p->qstride= a->mb_width;
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index 0f9f649c9a37784e15c43097984a54af5055d9e7..a48a84bd28d82a0cddaf7fadef72357f1d91ab00 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -148,7 +148,7 @@ static VLC mb_ptype_vlc;
 static VLC mb_btype_vlc;
 static VLC mb_pat_vlc;
 
-av_cold void ff_init_vlcs(void)
+av_cold void ff_mpeg12_init_vlcs(void)
 {
     static int done = 0;
 
@@ -1194,7 +1194,7 @@ static av_cold int mpeg_decode_init(AVCodecContext *avctx)
     s->mpeg_enc_ctx.flags= avctx->flags;
     s->mpeg_enc_ctx.flags2= avctx->flags2;
     ff_mpeg12_common_init(&s->mpeg_enc_ctx);
-    ff_init_vlcs();
+    ff_mpeg12_init_vlcs();
 
     s->mpeg_enc_ctx_allocated = 0;
     s->mpeg_enc_ctx.picture_number = 0;
diff --git a/libavcodec/mpeg12.h b/libavcodec/mpeg12.h
index d2ab6e774ac1167f1196661ecbd9ab045260a59a..1e919b4d66cd053ea94b033ac4fee2d2cecebe15 100644
--- a/libavcodec/mpeg12.h
+++ b/libavcodec/mpeg12.h
@@ -33,7 +33,7 @@ static VLC dc_chroma_vlc;
 extern uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];
 
 void ff_mpeg12_common_init(MpegEncContext *s);
-void ff_init_vlcs(void);
+void ff_mpeg12_init_vlcs(void);
 
 static inline int decode_dc(GetBitContext *gb, int component)
 {