[Asterisk-video] bad video quality on minisip client

[Mas Deva]

Dear all,
Now i'm in triying to build xcon in my lab.I think Asterisk server and video
mixer have already run normally.
But i got a problem when launch video. The result of the video that i
lounched with "videoswitch" command  was so bad.(it was different from the
screnshoot on http://confiance.sourceforge.net/node/22).

here the display that i got from minisip log messages:

[h263 @ 0x1488650]Error at MB: 94
[h263 @ 0x1488650]concealing 81 DC, 81 AC, 81 MV errors
[h263 @ 0x1488650]Bad picture start code
[h263 @ 0x1488650]header damaged
[h263 @ 0x1488650]concealing 16 DC, 16 AC, 16 MV errors
[h263 @ 0x1488650]concealing 3 DC, 3 AC, 3 MV errors
[h263 @ 0x1488650]concealing 11 DC, 11 AC, 11 MV errors
[h263 @ 0x1488650]concealing 0 DC, 0 AC, 0 MV errors
[h263 @ 0x1488650]concealing 60 DC, 60 AC, 60 MV errors
[h263 @ 0x1488650]concealing 9 DC, 9 AC, 9 MV errors
[h263 @ 0x1488650]concealing 0 DC, 0 AC, 0 MV errors
[h263 @ 0x1488650]concealing 17 DC, 17 AC, 17 MV errors
[h263 @ 0x1488650]concealing 25 DC, 25 AC, 25 MV errors
[h263 @ 0x1488650]concealing 12 DC, 12 AC, 12 MV errors
[h263 @ 0x1488650]concealing 10 DC, 10 AC, 10 MV errors
[h263 @ 0x1488650]concealing 10 DC, 10 AC, 10 MV errors
[h263 @ 0x1488650]concealing 2 DC, 2 AC, 2 MV errors
[h263 @ 0x1488650]concealing 2 DC, 2 AC, 2 MV errors
[h263 @ 0x1488650]run overflow at 2x4 i:0
[h263 @ 0x1488650]Error at MB: 50
[h263 @ 0x1488650]run overflow at 10x2 i:0
[h263 @ 0x1488650]Error at MB: 34
[h263 @ 0x1488650]illegal ac vlc code at 4x3
[h263 @ 0x1488650]Error at MB: 40
[h263 @ 0x1488650]run overflow at 10x8 i:1
[h263 @ 0x1488650]Error at MB: 106
[h263 @ 0x1488650]concealing 99 DC, 99 AC, 99 MV errors
[h263 @ 0x1488650]run overflow at 1x2 i:1
[h263 @ 0x1488650]Error at MB: 25
[h263 @ 0x1488650]illegal ac vlc code at 6x4
[h263 @ 0x1488650]Error at MB: 54
[h263 @ 0x1488650]run overflow at 6x6 i:1
[h263 @ 0x1488650]Error at MB: 78
[h263 @ 0x1488650]concealing 91 DC, 91 AC, 91 MV errors
[h263 @ 0x1488650]concealing 16 DC, 16 AC, 16 MV errors

any suggestions?
regards
deva
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