<video_decoder> the codec is not supported

[jay98]

I tried to run the test-stream.lua with following command

th test-stream.lua -v 01TP_extract.avi

And it gives me this error

Input #0, avi, from '01TP_extract.avi':
Duration: 00:02:05.03, start: 0.000000, bitrate: 108156 kb/s
Stream #0:0: Video: lagarith (LAGS / 0x5347414C), none, 960x720, 108179 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
<video_decoder> the codec is not supported.
/home/jayp/torch/install/bin/luajit: test-stream.lua:14: No video
stack traceback:
[C]: in function 'error'
test-stream.lua:14: in main chunk
[C]: in function 'dofile'
...jayp/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk
[C]: at 0x00406d2

Does anyone have any idea why this might be happening ?

Thank You!