[new_age]

Hello Guys!

I'm trying to understand why standalone players with older firmwares are shuttering with xvid packed bitstream.

Can someone explain me why it is happening? The reason is the 2 B frames and one is packed. Older mt1389 firmwares didn't expect another B frame?
I guess the decoded frame order is not right this is the reason for shuttering but in which order decode the frames the older non xvid packed bitstream compatible firmwares?

Like this is shuttering in an old MT1389 firmware:

0: I-VOP (0:00:00.000)
1: P-VOP (0:00:00.125)
B-VOP (0:00:00.041)
2: B-VOP (0:00:00.083)
3: N-VOP(D) (0:00:00.125)
4: P-VOP (0:00:00.250)
B-VOP (0:00:00.166)
5: B-VOP (0:00:00.208)
6: N-VOP(D) (0:00:00.250)

after unpacking with mpeg4modifier:

0: I-VOP (0:00:00.000)
1: P-VOP (0:00:00.125)
2: B-VOP (0:00:00.041)
3: B-VOP (0:00:00.083)
4: P-VOP (0:00:00.250)
5: B-VOP (0:00:00.166)
6: B-VOP (0:00:00.208)

and what is the purpose of the N-VOP(D) in this case?

regards,

NA