i.MX ProcessorsのトピックRe: About Cortex-M4 in i.MX7 Software Video Encode Capability

About Cortex-M4 in i.MX7 Software Video Encode Capability

george — Fri, 03 Jun 2016 05:35:46 GMT

Dear all,

Currently, we have planned the product for the image analysis used i.MX7.

We use CA7 only for analysis, and CM4 does mpeg encoding(mpeg) of the input from parallel Camera, and then passes it as UVC to PC.

What performance is mpeg encode of VGA size in the above application using CM4?

What frame rate can be processed?

If there are benchmarks which is reference, please let me know.

Best Regards,

George

Re: About Cortex-M4 in i.MX7 Software Video Encode Capability

art — Thu, 16 Jun 2016 12:21:16 GMT

The CM4 core of i.MX7 series processors has not enough performance for such a complicated and resource-intensive task as on-the-fly mpeg encoding. So, no benchmark metering has ever been performed for such a case.

Have a great day,
Artur

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Re: About Cortex-M4 in i.MX7 Software Video Encode Capability

george — Sat, 18 Jun 2016 15:25:17 GMT

Dear Artur,

Thank you for the reply.

We understood your advice.

But I think that we need to try it.

Please tell, if you have the information which is a help to for it.

For example, is there any sample code to refer?

Best Regards,

George

Re: About Cortex-M4 in i.MX7 Software Video Encode Capability

art — Fri, 01 Jul 2016 09:11:20 GMT

Unfortunately, no, there is no such a reference code and no any estimation for such a task.

Re: About Cortex-M4 in i.MX7 Software Video Encode Capability

george — Fri, 01 Jul 2016 10:08:57 GMT

Thanks,

George