EvalVid Example

EvalVid Example

Evalvid example code also designed for the transmission of MPEG video of signals using more than a medium of communication container format to store video and audio files. Contact us for Evalvid example projects with source code documentation.

Evalvid-RA

  • Evalvid-RA, which is a tool-set for trace file simulation of rate-adaptive MPEG-4 video.
  • It was created by modifying the original EvalVid v1.2, the original ns-2 interface of EvalVid, and implementing a rate-adaptive version of SVBR into ns-2.
  • Note that Evalvid-RA is not compatible with EvalVid 2.x. The practical impact of this is that one has to work on “raw” *.m4v files and not the ISO Media File format *.mp4.
  • Thus it is not possible to hint *.m4v files with certain MTU settings, as it is possible with *.mp4 files.
  • The MTU parameter is, however, given directly in the ns-2 simulation, and the packetization will hence follow this MTU parameter without taking notice of macro-block boundaries.
Architecture of Evalvid example for video transmission quality analysis

Sample code for Evalvid example

   Below is a Evalvid example project for transmission of mpeg video files. To get detailed documentation and sample video work, reach networksimulationtools

static unsigned bit_ = 8, pos_;

void resetbuf()

{

pos_ = 0;

bit_ = 8;

}

unsigned nextbits(char *s, unsigned n)

{

unsigned i, v = 0;

for (i=0; i<n; i++) {

if (!bit_) pos_++, bit_ = 8;

v = v << 1 | !!(s[pos_] & 1U << –bit_);

}

return v;

}

unsigned skipbits(char *s, unsigned b)

{

unsigned count = 0;

if (b > 1) return 0;

for (;;) {

if (!bit_) pos_++, bit_ = 8;

if (b == !!(s[pos_] & 1U << –bit_)) count++; else break;

}

return count;

}

int VOP_not_coded(char *s, VOL_header *VOL_h)

{

if (nextbits(s, 8) != 0) goto E;

if (nextbits(s, 8) != 0) goto E;

if (nextbits(s, 8) != 1) goto E;

if (nextbits(s, 8) != 0xB6) goto E;

nextbits(s, 2);

skipbits(s, 1);

if (!nextbits(s, 1)) goto E;

nextbits(s, CalcMinBits(VOL_h->vop_time_inc_res));

if (!nextbits(s, 1)) goto E;

CLRBIT(s[pos_], bit_ – 1);

if (nextbits(s, 1)) goto E;

return pos_;

fprintf(stderr, “frame parsing error!\n”);

return 0;

}   

This is the code for transmission of MPEG video files simulated using EvalVid tool.

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NS2 75 117 95
NS3 98 119 206
OMNET++ 103 95 87
OPNET 36 64 89
QULANET 30 76 60
MININET 71 62 74
MATLAB 96 185 180
LTESIM 38 32 16
COOJA SIMULATOR 35 67 28
CONTIKI OS 42 36 29
GNS3 35 89 14
NETSIM 35 11 21
EVE-NG 4 8 9
TRANS 9 5 4
PEERSIM 8 8 12
GLOMOSIM 6 10 6
RTOOL 13 15 8
KATHARA SHADOW 9 8 9
VNX and VNUML 8 7 8
WISTAR 9 9 8
CNET 6 8 4
ESCAPE 8 7 9
NETMIRAGE 7 11 7
BOSON NETSIM 6 8 9
VIRL 9 9 8
CISCO PACKET TRACER 7 7 10
SWAN 9 19 5
JAVASIM 40 68 69
SSFNET 7 9 8
TOSSIM 5 7 4
PSIM 7 8 6
PETRI NET 4 6 4
ONESIM 5 10 5
OPTISYSTEM 32 64 24
DIVERT 4 9 8
TINY OS 19 27 17
TRANS 7 8 6
OPENPANA 8 9 9
SECURE CRT 7 8 7
EXTENDSIM 6 7 5
CONSELF 7 19 6
ARENA 5 12 9
VENSIM 8 10 7
MARIONNET 5 7 9
NETKIT 6 8 7
GEOIP 9 17 8
REAL 7 5 5
NEST 5 10 9
PTOLEMY 7 8 4

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