i.MX ProcessorsのトピックRe: IMX6 VPU Enc/Dec Codec development

IMX6 VPU Enc/Dec Codec development

arslan — Mon, 26 Nov 2012 16:40:57 GMT

hi all,

In a project we need to decode map-tiles encoded as PNG-Images.To decode them, one possible place could be the VPU. To do that, the vpu firmware should be extended/replaced with one, which can decode PNGs. Is there a way to achive that? Are there any docs about the internals of VPU?

Re: IMX6 VPU Enc/Dec Codec development

LeonardoSandova — Mon, 25 Mar 2013 20:26:02 GMT

Hi,

I am more familiar with GStreamer so through GStreamer the answer is no. The VPU decoder expects the following data formats

SINK template: 'sink'

Availability: Always

Capabilities:

video/mpeg

mpegversion: 4

video/x-h264

video/x-h263

video/mpeg

systemstream: false

mpegversion: { 1, 2 }

video/x-wmv

wmvversion: 3

format: WVC1

video/x-wmv

wmvversion: 3

video/x-xvid

video/x-vp8

image/jpeg

In other words, video formats and jpeg but no png.

Re: IMX6 VPU Enc/Dec Codec development

YixingKong — Thu, 28 Mar 2013 07:17:35 GMT

If your question has been anseed please click Correct Answer.

Thanks,

Yixing

Re: IMX6 VPU Enc/Dec Codec development

arslan — Mon, 15 Apr 2013 13:45:58 GMT

Hi Leonardo,

Thanks for the answer.

I think, I need to clarify, what I actually want.

I want to use the VPU for decoding custom compressed data. As the custom compression is not implemented in the firmware, I have to generate a new firmware for the VPU implementing my own decompression algos.

I assume, this is possible, because you can get/buy different firmware from freescale, e.g Real Video.

So, my question is actually, if Freescalewant to keep the entire VPU-information closed and just give out a firmware with an API, or make also possible for users to programm their own firmware?

Re: IMX6 VPU Enc/Dec Codec development

LeonardoSandova — Mon, 15 Apr 2013 16:07:48 GMT

hi YixingKong, my answer did not not answer the question. Please help me tagging the correct engineer who can answer this question.

Leo

Re: IMX6 VPU Enc/Dec Codec development

juangutierrez — Fri, 19 Apr 2013 22:31:43 GMT

i asked VPU experts and I got confirmation that BIT/Vpu firmware is private, and Freescale only deliver the fw binary.