Reading h264 stream with SP/SI frame

[Arateris]

Hy!
Is there any way to play h264 encoded stream with the SP-SI features?
when I try to do so, output is very very noised ( almost all pictures are with lots of grey areas, like error(I mean, the difference between original and coded) pictures.

VLC messages gives :

...
...
main warning: late picture skipped (24470)
ffmpeg warning: prefix too large at 9 0
(h264@00D90240)
ffmpeg warning: error while decoding MB 9 0
(h264@00D90240)
ffmpeg debug: concealing 99 DC, 99 AC, 99 MV errors
(h264@00D90240)
ffmpeg warning: out of range intra chroma pred mode at 1 0
(h264@00D90240)
ffmpeg warning: error while decoding MB 1 0
(h264@00D90240)
ffmpeg debug: concealing 99 DC, 99 AC, 99 MV errors
(h264@00D90240)
ffmpeg warning: top block unavailable for requested intra4x4 mode -1 at 3 0
(h264@00D90240)
ffmpeg warning: error while decoding MB 3 0
(h264@00D90240)
ffmpeg debug: concealing 99 DC, 99 AC, 99 MV errors
(h264@00D90240)
ffmpeg warning: top block unavailable for requested intra mode at 5 0
(h264@00D90240)
ffmpeg warning: error while decoding MB 5 0
(h264@00D90240)
ffmpeg debug: concealing 99 DC, 99 AC, 99 MV errors
(h264@00D90240)
...
...
...

Are SP/SI frames taken in account in ffmpeg or VLC ?