I hope the following link will be helpful for you.

1.http://www.mathworks.in/matlabcentral/newsreader/view_thread/161082

2,http://www.mathworks.in/matlabcentral/fileexchange/28706-list-video-codecs-fourcc

3.http://www.mathworks.in/matlabcentral/fileexchange/28706-list-video-codecs-fourcc

Thanks

I need the implemention code in matlab (how to write matlab code for video codec)

Using matlab to generate video is not so difficult. The basic principle is to plot a number of figures and use them to build a video just like the film. You can use the following codes:

for i=1:n

plot(..); %%plot a figure

axis([....]);%%it's better to plot the figure with same size

M(i) = getframe; %%save the plot

end

movie(M)%%build the movie

The format of resulting video is .avi.

A sample can be found in the attachment.

Good luck!

Check following links for MPEG Implementation in MATLAB

http://www.petitcolas.net/fabien/software/mpeg/

http://www.cs.cf.ac.uk/Dave/Multimedia/Lecture_Examples/Compression/mpegproj/