lab 6 MyEvalVid

understanding MyEvalVid and combine with NS2

example 1

1.use ffmepg to make YUV file to m3v file(using foreman film example)


2. after .m4v file is OK, use MP4BOX to make mp4 file



3.use mp4trace to trace information of every frame.
and we can get .st file

start ns2 simulation




4. sd record and rd record are created.

and then we can use etmp4 to re-generate the frame loss film


5.
source yuv and reconstruction ynv PSNR calculate.



6 finally, the yuv viewer help us to see the difference the file.



example 2.

we will find how to simulate two video flow.

1. sd1 rd1 found!


2.




using the same technique, the PSNR= 34.034 for video flow 1

3. comparison.