topic Quote:Igor Astakhov (Intel) in Intel® Integrated Performance Primitives

H264 encoder high performance issue

Amol_A_ — Mon, 02 Dec 2013 08:45:50 GMT

Hi,

I built IPP H264 encoder using the samples with static multithreading. I found very high CPU utilization even with m_iThreads = 1.

Can you help me to resolve this.

Thanks and Regards

Amol

Amol,

Chao_Y_Intel — Fri, 06 Dec 2013 03:58:12 GMT

Amol,

There are two layer threading for the UMC: the high level the UMC threadings, and IPP internal threading.

You also need to disable Intel IPP internal threading: for example, by calling ippSetNumThreads(1).

Thanks,
Chao

Hi Chao,

Amol_A_ — Mon, 09 Dec 2013 07:14:39 GMT

Hi Chao,

Thanks for your quick reply.

I also checked the CPU load with ippSetNumThreads(1). But the CPU load is still very high. It is 30-40 % on normal desktop machine.

Desktop Machine Configurations are:

1. RAM: 4GB

2. Processor: Intel(R)Core(TM) i5-2400 CPU @3.10GHz

Can you please suggest anything else to improve the CPU load?

Thanks

Amol

Hi Amol,

Igor_A_Intel — Mon, 09 Dec 2013 16:27:57 GMT

Hi Amol,

the best way is to use Intel Media SDK.

regards, Igor

Quote:Igor Astakhov (Intel)

Roman_T_ — Tue, 10 Dec 2013 10:08:05 GMT

Igor Astakhov (Intel) wrote:

Hi Amol,

the best way is to use Intel Media SDK.

regards, Igor

Hi, Igor!

Does the current version of Media SDK have any tools to write video to standard containers? (i.e. *.mp4, *.avi, *.asf)

Best regards,

Roman

Hi Roman,

Igor_A_Intel — Wed, 11 Dec 2013 12:15:46 GMT

Hi Roman,

in the current version of Media SDK that is available publicaly (2013 R2) there are no any muxers. It is not difficult to integrate into one application MSDK and splitters/muxers from, for example, FFmpeg - there is an example on this in the Media SDK Tutorial. In the next version of Media SDK (will be available publicaly in the ~beggining of 2014) a library of splitters/muxers will be added (with API that is compatible with MSDK) - so a lot improvements will be available in the next version.

regards, Igor

Hi Igor,

Amol_A_ — Tue, 17 Dec 2013 11:37:30 GMT

Hi Igor,

Sorry for the late reply.

The performance of Intel Media SDK is very good and CPU load is also very low.

Thanks for your suggestion.

Regards

Amol

Hi Igor,

Amol_A_ — Tue, 24 Dec 2013 06:28:23 GMT

Hi Igor,

As per my understanding to use IPP we need to buy the licence. Is there any licence for intel media SDK too which we have to buy?

Regards

Amol

Hi Amol,

Sergey_K_Intel — Fri, 17 Jan 2014 10:55:07 GMT

Hi Amol,

As far as I know, the Windows version of Media SDK is free (Linux not). Look at Media SDK web page.

Regards,
Sergey