#include <stdio.h>

#include <stdlib.h>

#include <string.h>

char gchrOutput[1024];

void m3u8_strstr()

{

    char chrm3u8[]=".m3u8";

    char chrColon[]="://";

    char chrData[1024];

    char *p='\0';

    char *p1='\0';

    p=strstr(gchrOutput,chrm3u8);

    printf("point=%d\n",(p-gchrOutput));

    printf("gchrOutput before=%s\n",gchrOutput);

    if((p-gchrOutput)>0)

    {

        p1=strstr(gchrOutput,chrColon);

        strcat(chrData,"http");

        strcat(chrData,p1);

        printf("Data=%s\n",chrData);

        strcpy(gchrOutput,chrData);

    }

    printf("gchrOutput after=%s\n",gchrOutput);

}

int main()

{

    printf("Hello world!\n");

    strcpy(gchrOutput,"rtsp://127.0.0.1/123.m3u8");

    m3u8_strstr();

    strcpy(gchrOutput,"rtsp://127.0.0.1/123.wmv");

    m3u8_strstr();

    return 0;

}