i.MX ProcessorsのトピックRe: LVDS and CODEC Sync

LVDS and CODEC Sync

akashchandra — Sat, 15 Jul 2017 03:39:26 GMT

Hi,

I am working on a board which is having two LVDS displays and two Audio codecs. I am porting MORTY SDK on it. Gstreamer1.0 package is available in MORTY. I am able to play audio on both the codecs but I am unable to play video on both the displays. Also I am unable to play audio and video simultaneously. Can anyone tell me gst-launch-1.0 pipeline description so that I can sync audio and video at same time?

Thanks.

Akash Chandra

Re: LVDS and CODEC Sync

igorpadykov — Sun, 16 Jul 2017 23:08:26 GMT

Hi Akash

please refer to attached Linux Guide sect.7.3.1.3 Audio/Video file playback,
use nxp bsps 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: LVDS and CODEC Sync

akashchandra — Mon, 17 Jul 2017 06:03:46 GMT

Hi Igor,

Thanks for your response. According to Linux Guide section7.3.1.3 we should know audio-video decoder and sink plugins. I am unable to find those plugins. I used gst-inspect-1.0 command to find the plugins and tried the following command:

gst-launch-1.0 filesrc location=/media/Coldplay.mp4 typefind=true ! imxvpudec ! imxipuvideosink &

But it showed the following errors:

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/GstImxVpuDecoder:imxvpudecoder0: VPU decoder was not created
Additional debug info:
../src/vpu/decoder.c(466): gst_imx_vpu_decoder_handle_frame (): /GstPipeline:pipeline0/GstImxVpuDecoder:imxvpudecoder0
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

Do you know how to find the required plugins?

Thanks.

Akash Chandra

Re: LVDS and CODEC Sync

igorpadykov — Mon, 17 Jul 2017 10:47:54 GMT

Hi Akash

what processor and board used in the case ?

Best regards
igor

Re: LVDS and CODEC Sync

akashchandra — Mon, 17 Jul 2017 11:08:24 GMT

Hi Igor ,

I am using IMX6QUAD processor and im6qsabersd board. Is there any issue in plugins?

Thanks.

Akash Chandra

Re: LVDS and CODEC Sync

igorpadykov — Mon, 17 Jul 2017 11:52:26 GMT

Hi Akash

please try Demo Images

http://www.nxp.com/webapp/Download?colCode=L4.1.15_2.0.0_MX6QDLSOLO&appType=license&location=null&Parent_nodeId=13376994…

Best regards
igor