git.sesse.net Git - mlt/blob - src/modules/videostab/tlist.c

   1 #include "tlist.h"
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 tlist* tlist_new(int size){
   6     tlist* t=malloc(sizeof(tlist));
   7     memset(t,0,sizeof(tlist));
   8     return t;
   9 }
  10
  11 void tlist_append(tlist* t,void* data,int size){
  12     tlist* next=tlist_new(0);
  13     tlist* pos=t;
  14     while (pos && pos->next) {
  15                 pos=pos->next;
  16         }
  17
  18         pos->data=malloc(size);
  19         memcpy(pos->data,data,size);
  20     pos->next=next;
  21 }
  22 int tlist_size(tlist* t){
  23     int ret=0;
  24     tlist* pos=t;
  25     while (pos && pos->next && pos->data) {
  26         pos=pos->next ;
  27         ret++;
  28     };
  29     return ret;
  30 }
  31 void* tlist_pop(tlist* t,int at){
  32     int ret=0;
  33     tlist* pos=t;
  34     /*if (pos && !pos->next ){
  35         return pos->data;
  36     }*/
  37     while (pos && pos->next) {
  38         if (ret==at){
  39             tlist* n=pos->next;
  40             pos->data=n->data;
  41             pos->next=n->next;
  42             return pos->data;
  43         }
  44         pos=pos->next ;
  45         ret++;
  46     };
  47     return NULL;
  48 }
  49 void tlist_fini(tlist* list){
  50         tlist* head=list;
  51         while (head){
  52                 if (head->data) free(head->data);
  53                 tlist *del=head;
  54                 head=head->next;
  55                 free(del);
  56         }
  57 }