C語言音樂播放器實例代碼
來源:本站原創(chuàng)|時間:2020-01-10|欄目:C語言|點擊: 次
實例代碼如下:
#include <stdio.h> #include<dirent.h> #include<stdlib.h> #include<unistd.h> #include<string.h> typedef struct node_ node_t; struct node_{ char* name;//gequming node_t * prev; node_t * next; }; node_t *head = NULL; int first=1;//diyicibofnag node_t * cur =NULL;//dangqianbofang enum{STOP,PAUSE,PLAY}; int status = STOP; void List_init(void){ head = malloc(sizeof(node_t)); memset(head,0x00,sizeof(node_t)); head->next = head->prev=head; } void list_insert(const char* name){ node_t *p = malloc(sizeof(node_t)); memset(p,0x00,sizeof(node_t)); p->name = malloc(strlen(name)+1); strcpy(p->name,name); p->next = head->next; p->prev = head; head->next->prev = p; head->next = p; } int menu(void){ printf("*************menu************************\n"); printf("1. play/pause\n"); printf("2. next\n"); printf("3. prev\n"); printf("4. stop\n"); printf("5. exit\n"); printf("**************************************\n"); list_show(); int choose =4; do{ printf(" > "); scanf("%d",&choose); if(choose>=0&&choose<=4) break; printf("choose invalid\n"); while(getchar()!='\n'); }while(1); return choose; } void list_show(void){ node_t *p = head->next; while(p!=head){ printf("%s ",p->name); if(p==cur) printf("<<==cur"); printf("\n"); p = p->next; } } void load_music(const char * path){ DIR * pdir = opendir(path); if(pdir == NULL){ perror("opendir"); exit(1); } struct dirent * p = NULL; while((p=readdir(pdir))!=NULL){ if(p->d_name[0]=='.') continue; list_insert(p->d_name); } closedir(pdir); } void playPause(){ if(first==1){ char buf[1024] = {}; sprintf(buf,"madplay -o wav:- ./music/Music/%s 2> /dev/null | aplay 2>/dev/null &",cur->name); system(buf); first = 0; status = PLAY; }else{ if(status==PLAY){ system("killall -SIGSTOP aplay"); status = PAUSE; }else if(status==PAUSE){ system("killall -SIGCONT aplay"); status = PLAY; } } } void stop(){ system("killall -SIGKILL aplay"); first=1; } void next(){ stop(); cur = cur ->next; if(cur==head){ cur = cur->next; } playPause(); } void prev(){ stop(); cur = cur->prev; if(cur==head){ cur= cur->prev; } playPause(); } int main(int args,char * argv[]) { List_init(); load_music("./music/Music"); if(head->next!=head) cur = head->next; //printf("%s\n",cur->name); //list_show(); do{ int choose = menu(); switch(choose){ case 1: playPause(); break; case 2: next(); break; case 3: prev(); break; case 4: stop(); break; case 0: printf("thanks"); system("killall -SIGKILL aplay"); exit(0); break; default: break; //do nothing; } }while(1); return 0; }
實例效果圖片如下:
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