Intel Software Network - <![CDATA[ Intel® Integrated Performance Primitives ]]> feed http://software.intel.com/en-us/forums/intel-integrated-performance-primitives en-us Decode an MPEG-4 stream
Can IPP decode an MPEG-4 stream?

BR, ]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70143/ Wed, 25 Nov 2009 06:30:07 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70143/ ISN General IPP 5.3.3.082 to 6.0.2.074 version issues
Please help,

I have build and installed an application which uses IPP version 5.3.3, but now after uninstalling 5.3.3 and installing 6.0.2. My application shows error

"This application has failed to start because ippcore-5.3.dll was not found"

should i rebuild my application with IPP 6.0.2

Thanks in advance
Vikas ]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70135/ Wed, 25 Nov 2009 03:01:10 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70135/ ISN General Installation annoyance
I'm installing the latest release and at our company we have a strict policy on where to install third party tools and libraries. Alas: the intel installer insists on adding it's own path after my selection of the destination folder. Why call this 'Choose destination folder' ? Very annoying. :-(

Greetings,

Rob ]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70132/ Wed, 25 Nov 2009 01:03:03 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70132/ ISN General How should I use the separable filters? Furthermore, I do not understand how the result comes about in the example using the function ippiFilterColumn. Why the result should be 
0,0,0,0
102,101,101,100
0,0,0,0   ?
It would be very helpful if any one can help me.
Thank you!!
]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70128/ Tue, 24 Nov 2009 23:32:48 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70128/ ISN General how to use directory functions i'm trying do build my own application with the IPP and now i need to access a directory. Sadly the documentation of the IPP brings no help. Can somebody give me a sample how to use the vm_dir_open() and the vm_dir_read() functions please?

Thanks and regards,
Otto ]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70126/ Tue, 24 Nov 2009 22:39:43 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70126/ ISN General Questions regarding UMC H264 Encoder
I have 2 question that would like to know about UMC H264 encoder

1. Does H.264 encoder actually produces I frame everytime if i re-initialize my H.264 encoder everytime i want to encode a frame?

2. Is it due to my parameter setting for H264Encoder (initialize once) that i get video frame that is slightly jerky?

Apparently, if i re-initialize my H264Encoder everytime i want to encodes a frame give me a smoother video. And even if i set every frame to I-frame (i.e. key_frame_control.inteval =1) for encoder that i initialize only once, it is not as smooth. any reason for that?

Thanks and regards,
YanQin 
]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70122/ Tue, 24 Nov 2009 18:17:27 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70122/ ISN General IPP and multiple threads
I am new to using the Intel IPP library and had a question on using the -N option to the performace utilities. I am trying to see how the performance of the libraries scales as the number of threads increases. I am trying this on a specific function and am using the ps_ippdcem64t tool. Does the -N control how many threads are spwaned and will use the function I specify with the -f option, or is the -N option used to control threading within the IPP libraries? Thanks in advance.

Bijoy. ]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70116/ Tue, 24 Nov 2009 13:47:20 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70116/ ISN General Cutoff coefficients for ippsFIRGenBandpass_64f Sorry for beginner question.
I want to filter voice only from audio signal (0..8kHZ ).
What parameters should I use for ippsFIRGenBandpass_64f to make it? 0 and 0.18 ?

Thank you :)
]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70108/ Tue, 24 Nov 2009 07:13:54 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70108/ ISN General SID packet creation ITU document about G711 Appendix II says that SID packet first byte has value from 0 till 127.
The MSB bit in this byte (octet) is zero always.

But as I see from this source code (where SID packet is computed):

dst[0] = (Ipp8u)(((anau[0] & 1) << 7) | ((anau[1] & 31) << 2) | ((anau[2] & 15)>>2));
dst[1] = (Ipp8u)(((anau[2] & 3) << 6) | ((anau[3] & 31) << 1));


The MSB bit CAN be 1! And it IS 1 in some cases - I see value 0xA0 in first byte very often.

Is it ok? ]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70107/ Tue, 24 Nov 2009 06:39:37 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70107/ ISN General error C2065: &#39;ippiCopyCopySubpix_8u_C1R&#39; : undeclared identifier  i want to use the ippiCopyCopySubpix_8u_C1R or ippiCopySubpixIntersect_8u_C1R function
then  i got the message from the  VC6.0 Compiler 

: error C2065: 'ippiCopyCopySubpix_8u_C1R' : undeclared identifier


and i have include "ippi.h",but in ippi.h i couldn't find this function

Thanks for your reply. ]]> http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70075/ Mon, 23 Nov 2009 04:43:39 -0800 http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/70075/ ISN General