3 files changed, 6 insertions, 6 deletions
diff --git a/libmpcodecs/ve.c b/libmpcodecs/ve.c
index 4409a10e45..5856c8e651 100644
--- a/libmpcodecs/ve.c
+++ b/libmpcodecs/ve.c
@@ -46,7 +46,7 @@ static vf_info_t* encoder_list[]={
     NULL
 };
 
-vf_instance_t* vf_open_encoder(vf_instance_t* next, char *name, char *args){
+vf_instance_t* vf_open_encoder(vf_instance_t* next, const char *name, char *args){
     char* vf_args[] = { "_oldargs_", args, NULL };
     return vf_open_plugin(encoder_list,next,name,vf_args);
 }
diff --git a/libmpcodecs/vf.c b/libmpcodecs/vf.c
index f93aebf085..3df26ef639 100644
--- a/libmpcodecs/vf.c
+++ b/libmpcodecs/vf.c
@@ -436,7 +436,7 @@ static int vf_default_query_format(struct vf_instance_s* vf, unsigned int fmt){
   return vf_next_query_format(vf,fmt);
 }
 
-vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, char *name, char **args){
+vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, const char *name, char **args){
     vf_instance_t* vf;
     int i;
     for(i=0;;i++){
@@ -475,7 +475,7 @@ vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, char
     return NULL;
 }
 
-vf_instance_t* vf_open_filter(vf_instance_t* next, char *name, char **args){
+vf_instance_t* vf_open_filter(vf_instance_t* next, const char *name, char **args){
   if(args && strcmp(args[0],"_oldargs_")) {
     int i,l = 0;
     for(i = 0 ; args && args[2*i] ; i++)
diff --git a/libmpcodecs/vf.h b/libmpcodecs/vf.h
index 29640bc9fb..cb6839d571 100644
--- a/libmpcodecs/vf.h
+++ b/libmpcodecs/vf.h
@@ -89,10 +89,10 @@ typedef struct vf_seteq_s
 void vf_mpi_clear(mp_image_t* mpi,int x0,int y0,int w,int h);
 mp_image_t* vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h);
 
-vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, char *name, char **args);
-vf_instance_t* vf_open_filter(vf_instance_t* next, char *name, char **args);
+vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, const char *name, char **args);
+vf_instance_t* vf_open_filter(vf_instance_t* next, const char *name, char **args);
 vf_instance_t* vf_add_before_vo(vf_instance_t **vf, char *name, char **args);
-vf_instance_t* vf_open_encoder(vf_instance_t* next, char *name, char *args);
+vf_instance_t* vf_open_encoder(vf_instance_t* next, const char *name, char *args);
 
 unsigned int vf_match_csp(vf_instance_t** vfp,unsigned int* list,unsigned int preferred);
 void vf_clone_mpi_attributes(mp_image_t* dst, mp_image_t* src);