What is the possible problem with this compressed video?

[MaiTiano]

Here is the problem.
After compressing the video by my program, the image appear to be a little bit green for about 1~4sec in the beginning. While the rest of video are appear to be the normal color as source video.

Can anybody tell me the possible reason of this problem happening?

For your information:
the bad compressed video:

http://m2.img.libdd.com/farm2/122/49B19023AB8C806008E0D2147213BB7A_501_284.jpg

source video:

http://m2.img.libdd.com/farm2/206/DE5F30BB9AD715DA9A85E165C6BBECCE_501_282.jpg

[mike20021969]

What format are you compressing to? (input/output resolutions, bitrates, codec etc...).
What is the original source format?

Can you upload a short sample of the source for others to test.

[*.mp4 guy]

The first I-frame may not be being referenced correctly. That encode looks like the typical situation that occurs when incorrect or missing intra data is fed into inter prediction. The first I-frame may be being decoded as solid black as some sort of error-default, causing the video to start out black then lighten up as the black is mixed with inter residual blocks, and then popping back to a correct picture at the next I-frame.