缓冲区代码

缓冲区的代码 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "stream.h" int quit; #define DELAY_MAX 5000 //最大延时5000毫秒 #define IN_NUM (2) #define MAIN_STREAM (0) #define SLAVE_STREAM (1) void Init_Interface(int Msg_id) { int qid; if(ApproDrvInit(Msg_id)) exit(1); if (func_get_mem(&qid)) { ApproDrvExit(); exit(1); } } void Clean_Interface(void) { ApproInterfaceExit(); } static int alarm_rec_enable; static unsigned int deltime; static unsigned int GetTimeStamp(void) { struct timeval timeval; gettimeofday(&timeval, NULL); return (timeval.tv_sec * 1000) + (timeval.tv_usec + 500) / 1000;; } void *get_frame(void *arg) { FILE *filefd=NULL; char filename[80]; int ch=0; stream_rpos_t rpos; frame_head_t frame_head; int first_frame_type=0; int first_frame=0; char *frame_pos; char *data; unsigned int cur_time; printf("get ch %d stream\n", ch); memset(&rpos, 0, sizeof(rpos)); st_stream_getStartPos(ch, MAIN_STREAM, &rpos); st_stream_getOneFrame(ch, MAIN_STREAM, 10, &rpos); while(!quit) { if(alarm_rec_enable) { if(st_stream_getOneFrame(ch, MAIN_STREAM, 200, &rpos) <= 0) { usleep(10*1000); continue; } frame_pos = &rpos.p_buf_data[rpos.data_start_pos]; memcpy(&frame_head,&rpos.p_buf_data[rpos.data_start_pos],sizeof(frame_head)); data=frame_pos+sizeof(frame_head_t