i.MX ProcessorsのトピックRe: Coda VPU in Mainline Kernel

Coda VPU in Mainline Kernel

joãorodrigues — Fri, 15 Sep 2017 15:55:58 GMT

Hello.

I am trying to use GStreamer in an iMX.6 SoC with the mainline kernel (4.13), with the aid of the CODA vpu driver.

Although, when i run gst-launch-1.0 playbin uri=file:///home/root/test.mp4, i always get the following kernel message:

[ 386.336530] coda 2040000.vpu: CODA_COMMAND_SEQ_INIT timeout

I have tried various things by now, but was never able to generate an output.

I can only generate an output on my screen with gst-launch-1.0 videotestsrc ! autovideosink (fbdevsink also works)

Does anyone have a solution for this? What might be the cause of this miss-initialization?

Extra debug info:

CODA is initialized properly by the kernel;

the sink used by gstreamer is imxg2dvideosink (Which i think it is one of the sources of the issue)

CMA memory is set to 64MB (320 MB does not fix it)

Gstreamer ver - 1.8.0

Re: Coda VPU in Mainline Kernel

igorpadykov — Mon, 18 Sep 2017 02:17:10 GMT

Hi João

mainline releases may lack multimedia libraries as they are proprietary

and this may be posted on mainline mail list.

In general one can look at differencies in various bsps

difference between Yocto Community BSP and Freescale BSP Release

Full bsps (with all multimedia libraries) are provided in official nxp releases described on

http://www.nxp.com/products/software-and-tools/software-development-tools/i.mx-software-and-tools/i.mx-6series-i.mx-7series-software-and-development-tool-resources:IMX_SW

Best regards
igor
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Re: Coda VPU in Mainline Kernel

fabio_estevam — Mon, 09 Oct 2017 13:54:01 GMT

Hi Joao,

I faced the same error with kernel 4.13.x.

Please report it to the Gstreamer mailing list: gstreamer-devel@lists.freedesktop.org