text: #ifndef THR_CHANNEL_H
  #define THR_CHANNEL_H
  
  #include "medialib.h"
  
  int thr_channel_create(struct chn_list_ent *);
  
  int thr_channel_destroy(struct chn_list_ent *);
  int thr_channel_destroyall(void);
  
  #endif
  
  