The h264 bitstream that ipp51 cannot decode correct?

james_huang — Mon, 17 Mar 2008 12:52:40 GMT

Dear all,

I ran the ipp5.1 sample code (simple_player) to decode
the bitstream ftp://211.22.74.18/tmp/080317_ipp51_decoder_error.264,
It got a error, but using ipp4, and ipp5.3 sample code
that decode fine and correct. The code location with error as follows:

h264_dec.lib:umc_h264_segment_decoder_decode_mb_types.cpp:
if (m_cur_mb.GlobalMacroblockInfo->mbtype == MBTYPE_INTRA_16x16)
{
// 16x16 INTRA, code includes prediction mode and cbp info

m_cur_mb.LocalMacroblockInfo->cbp = ICBPTAB[(uCodeNum)>>2];
pMBIntraTypes[0] =
pMBIntraTypes[1] =
...
}

why? Please help me, thank you very much.

Best Regards.
James

Re: The h264 bitstream that ipp51 cannot decode correct?

Ying_S_Intel — Fri, 21 Mar 2008 23:24:39 GMT

Dear Customer,
We may have code changes for some bug fixes from each version of release. Can you use the correctedversion for example the latest one5.3?

Thanks,
Ying

topic The h264 bitstream that ipp51 cannot decode correct? in Intel® Integrated Performance Primitives

The h264 bitstream that ipp51 cannot decode correct?

Re: The h264 bitstream that ipp51 cannot decode correct?