使用 tinyplay 播放音乐(重复播放,按照次数播放) popen 的使用

static void *ThreadFunc(void *arg) {
    while(1){
        pthread_mutex_lock(&playbackMutex);//mydebugUs;
        if(audio_playback_flag==0){pthread_cond_wait(&playbackCond, &playbackMutex);mydebugUs;}
        pthread_mutex_unlock(&playbackMutex);//mydebugUs;


        // //2023.11.23 使用进程进行播放测试
        //mydebugUs;
        // FILE *fp = popen("ps -ef | grep tinyplay | grep -v grep | awk '{print $1}' | xargs kill -9", "r");
        // if (fp) { char out[256];while (fgets(out, sizeof(out), fp) != NULL) { printf(out); } pclose(fp); }

        audio_playback_flag=0;//清空标记
        system("ps -ef | grep tinyplay | grep -v grep | awk '{print $1}' | xargs kill -9");
        //mydebugUs;
        usleep(1000);
        //mydebugUs;
        char cmd[1024];
        //int flag=loop_num;//=0xFFFFFFFF
        snprintf(cmd,1024,"./tinyplay_num.sh %s %d &",filename,loop_num);
        //mydebugMsg(cmd); 
        system(cmd);  
        //mydebugUs;
        continue;
    }
}

static int audio_playback_flag = 0;
static int audio_playback_flag_closed = 0;
static unsigned int loop_num = 1;//循环次数
static unsigned int loop_minutes = 0;//循环多长时间,设置这个,则设置次数失效
static char filename[1024];//文件名

static pthread_cond_t playbackCond=PTHREAD_COND_INITIALIZER;
static pthread_mutex_t playbackMutex;
static pthread_t playbackTid;


void AudioInitFunc(void){
    pthread_mutex_init(&playbackMutex, NULL);
    pthread_cond_init(&playbackCond, NULL);
    pthread_create(&playbackTid, NULL, ThreadFunc, NULL);
    audio_playback_flag=0;
}

//名称播放
int  AudioPlaybackStartFileName(char* name,int loopType,int num){

    if(strlen(name)>=sizeof(filename)){
        AudioSetStatePlayback(AUDIO_INFO_ERROR_FILENAME_LEN);
        return -1;
    }
    strncpy(filename,name,sizeof(filename));
    
    if(loopType==AUDIO_LOOP_NUM){ loop_num=num;loop_minutes=0;   }
    else if(loopType==AUDIO_LOOP_MINUTES){ loop_minutes=num;loop_num=0;   }
    else if(loopType==AUDIO_LOOP_KEEP_ALIVE){ loop_minutes=0xFFFFFFFF;loop_num=0xFFFFFFFF;   }
    else {loop_num=1;loop_minutes=0;}

    //WAKE UP
    audio_playback_flag = 2;
    pthread_mutex_lock(&playbackMutex);//mydebugUs;
    pthread_cond_signal(&playbackCond);//mydebugUs;
    pthread_mutex_unlock(&playbackMutex);//mydebugUs;
    return 0;
}