hust_rtpwritefifo.c

来自「实现基于ip2022的MPEG2 TS的IP组播接收」· C语言 代码 · 共 55 行

#ifndef	_RTP_WRITE_FIFO
#define	_RTP_WRITE_FIFO
#define	QUEUEMAXLEN	0x4d1c
#include <ipOS.h>
#include <ipHAL.h>
#include <ipStack.h>
#include <ipEthernet.h>
#include "hust_rtp.h"
extern	u8_t data_write[RTP_DATASIZE];
u32_t	data_addr=0;
void	write_fifo();
u8_t 	numflag=0;
u8_t	loop=0;
volatile u16_t data_read __attribute__((section(".gpr")));
int rtpwritefifo(struct stream* pstm)
{
	struct rtpqueue *prtpq=&(pstm->stm_queue);
	struct rtpln	*prtpln;
	u16_t		len=0;
	
//	port_dir(RD,DIR_ALL_OUTPUTS);
//	pin_dir_out(RB,0);
///	pin_dir_out(RB,3);
///	pin_low(RB,3);

	    loop++;
	    prtpln = rtpqextract(prtpq, prtpq->rq_head);

///	    len=prtpln->rln_len;
///	    len=len/2;
///	    data_addr=prtpln->rln_rtp.rtp_data_addr;	    
///	    extmem_read(prtpln->rln_rtp.rtp_data_addr,data_write,prtpln->rln_len);
//	    write_fifo();
/*	    for(u16_t i=0;i<len;i++)
	    {
	   	data_read=extmem_read_u16(data_addr);	    	
	    	write_fifo();/////要把data_read写到fifo中去	    	
	    	data_addr+=2;
	    		    	
	    }////end_for
*/
	    ///prtpln=prtpln->rln_prev;
	    ///numflag++;
///	    debug_set_lights(loop);
///	    heap_free(prtpln);	    		
	///_rtpqclear(prtpq);
	///numflag=0;
	return	0;
}////end_rtpwritefifo





#endif