EvalVid Audio is a simulation tool for simulating audio based applications. We also will transfer the audio file based on the packet queue handling mechanism using evalvid-2.6 version.
RA-Eval supported:
Sample code for EvalVid Audio using network simulator 2
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "error.h"
#include "rtp.h"
#include "socket.h"
#include "timing.h"
#include "queue.h"
#define INC(q) ((q->s) = ((q->s) + 1) % q->n);
unsigned buffers(queue_t *q) { return q->n; }
void setbuffertime(queue_t *q,
unsigned ms) { q->buffertime = ms; }
unsigned buffertime(queue_t *q) { return q->buffertime; }
void setdeadline(queue_t *q,
unsigned ms) { q->deadline = ms; }
unsigned deadline(queue_t *q) { return q->deadline; }
unsigned queuelen(queue_t *q) { return q->len; }
double sendrate(queue_t *q) { return q->bytes_sent / curtime(); }
int createq(queue_t *q, unsigned packets) {
if (0 == (q->packets = calloc(packets, sizeof *q->packets)))
{ seterror(err_NM); return 0; }
if (!createlock(&q->lock)) { return 0; }
q->n = packets; q->s = 0;
q->packetlist = 0;
q->len = 0;
q->bytes_sent = 0;
q->buffertime = 0;
q->deadline = 0;
return 1; }
Download sample Evalvid audio transfer program using packet queue mechanism in ns2.
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