topic Re: Profiles supported by UMC H.264 decoder in Intel® Integrated Performance Primitives

Profiles supported by UMC H.264 decoder

meekmeek — Tue, 02 May 2006 19:01:27 GMT

I want to know waht are the profiles supported by the H.264 decoder

I using the UMC H.264 decoder in my multimedia player.
I have generated some H.264 streams (using the open source x264 encoder) which are not decodable by the H.264 decoder. These streams are using the High Profile and these streams seems to be not decodable by the UMC decoder (sps stream parser miss some High Profile data in the sps stream. )

Does this profile will ba available in the future version of the decoder ?

best Regards

Re: Profiles supported by UMC H.264 decoder

Vladimir_Dudnik — Wed, 03 May 2006 04:08:52 GMT

Hello,

what version of media sample do you use? Is it from IPP v5.1? Note, you can look for details about any particular codec limitations in readme.htm file which is located in codec source folder. For example, regarding H.264 decoder in IPP v5.1:

Known Limitations

decoder supports decoding of files created by JM9.2 compliant encoders or latest
decoder supports baseline, main, extended and high profiles features
decoder can produce artifacts on EM64T platforms.
decoder can crash on some streams because of known bug in optimized version of ippiReconstructLumaIntraMB_H264_16s8u_C1R function in of Intel IPP for IXP 4XX product line processor

Regards,
Vladimir

Re: Profiles supported by UMC H.264 decoder

meekmeek — Wed, 03 May 2006 16:37:07 GMT

Thanks,

I was using the 5.0 sample code.
everything is running with the 5.1 media_Sample code.

Re: Profiles supported by UMC H.264 decoder

Vladimir_Dudnik — Wed, 03 May 2006 18:00:58 GMT

Great, what is your opinion about UMC interface, codec functionality, performance? We are interested to get your feedback about media sample to make it better in future versions

Thanks,
Vladimir