【VC开源代码栏目提醒】:文章导读:在新的一年中,各位网友都进入紧张的学习或是工作阶段。网学会员整理了VC开源代码-rtpdump.cpp的相关内容供大家参考,祝大家在新的一年里工作和学习顺利!
// rtpdump.cpp : Defines the entry point for the console application.
//
#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include "stdafx.h"
int main(int argc, char* argv[])
{
unsigned int bufsize, pacno=0;;
unsigned char buf[65000];
int i, intime;
FILE *f;
if (argc != 2)
{
printf ("Usage: %s <H.264 RTP packet file\n");
return -1;
}
if (NULL == (f = fopen (argv[1], "rb")))
{
printf ("%s: cannot open H.264 packet file %s for reading\n", argv[0], argv[1]);
return -2;
}
while (1)
{
if (4 != fread (&bufsize, 1, 4, f))
return 0;
if (4 != fread (&intime, 1, 4, f))
{
printf ("Panic, cannot read timestamp, old software version file?\n");
return -1;
}
printf ("\n\npacket #%4d containing %5d bytes\n", pacno++, bufsize);
if (bufsize != fread (buf, 1, bufsize, f))
{
printf ("Problems while reading buffer, exit\n");
return -3;
}
for (i=0; i< 25; i++)
printf ("%02x ", buf[i]);
printf ("\n");
printf ("Version (V): %d\n", buf[0] & 0x3);
printf ("Padding (P): %d\n", (buf[0] & 0x4) >> 2);
printf ("Extension (X): %d\n", (buf[0] & 0x8) >> 3);
printf ("CSRC count (CC): %d\n", (buf[0] & 0xf0) >> 4);
printf ("Marker bit (M): %d\n", buf[1] & 0x1);
printf ("Payload Type (PT): %d\n", (buf[1] & 0xfe) >> 1);
printf ("Sequence Number: %d\n", buf[2] | (buf[3] << 8));
printf ("Timestamp: %d\n", buf[4] | (buf[5] <<8) | (buf[6] <<16) | (buf[7] <<24));
printf ("SSRC: %d\n", buf[8] | (buf[9] <<8) | (buf[10] <<16) | (buf[11] <<24));
printf ("First Byte: 0x%x\n", buf[12]);
}
}