[Mp4-tech] MPEG 4 Frame Type (I,P,B)

[Herbert Thoma]

vop_coding_type is encoded in the first 2 bits after vop_start_code.
vop_start_code is 00 00 01 b6 (hex)
vop_coding_type means:
0 0  I VOP
0 1  P VOP
1 0  B VOP
1 1  S VOP
Regards,
  Herbert.
Tejas A Vora schrieb:
> Hi
> 
> We are creating a software to parse MPEG4 data. Can anyone tell me how to extract the Frame Type (I,P,B) frame type from the whole RTP packet?
> 
> I mean I have RTP packet with MPEG4 payload in it, then how to extract the Frame type information from it?
> 
> Thanks,
> Tejas Vora
> 
> 
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-- 
Herbert Thoma
Group Manager Video
Multimedia Realtime Systems Department
Fraunhofer IIS
Am Wolfsmantel 33, 91058 Erlangen, Germany
Phone: +49-9131-776-323
Fax:   +49-9131-776-399
email: tma iis.fhg.de
www: http://www.iis.fhg.de/