topic problem on IMX8M and 4K gstreamer decoding in i.MX Processors

problem on IMX8M and 4K gstreamer decoding

fredericduchass — Tue, 29 Jan 2019 11:25:10 GMT

Hello,

I try to decode MPEG2TS video stream using imx8m and gstreamer.

Attached here, you can find the stream which gives me problems (4K stream from Astra):

https://wetransfer.com/downloads/f7337743ed38a3fed90dabb7fa20572420190129112122/7e39868bf451393a4768e241d67f329820190129112122/6cb654

The pipeline for playing video service 1 is :

gst-launch-1.0 pciesrc ! typefind ! queue ! aiurdemux name=d program-number=1 ! multiqueue name =q d. ! q. q. ! decodebin ! queue ! kmssink q. ! decodebin ! queue ! audioconvert ! alsasink

With this video service, all is decoded correctly.

The pipeline for playing video service 2 is :

gst-launch-1.0 pciesrc ! typefind ! queue ! aiurdemux name=d program-number=2 ! multiqueue name =q d. ! q. q. ! decodebin ! queue ! kmssink q. ! decodebin ! queue ! audioconvert ! alsasink

With this video the service is not well decoded : i have only video or only audio...

The difference between service 1 and 2 is audio encoding : service 1 use eac3, service 2 use mpeg1.

When audio is eac3, i never get problem. But when audio is mpeg1, it never works smoothly.

Thanks in advance for your help.

BTW : i use BSP 4.9.88

Re: problem on IMX8M and 4K gstreamer decoding

diegoadrian — Mon, 11 Feb 2019 22:23:42 GMT

Hello,

Can you please send me the videos where are you having problems through transweb?

https://www.nxp.com/transweb

Furthermore, in the meantime, I will be testing your pipelines with one of our videos.

Best regards,

Diego.

Re: problem on IMX8M and 4K gstreamer decoding

fredericduchass — Fri, 22 Feb 2019 07:59:25 GMT

Hi Diego,

Excuse me i haven't seen your answer. I solve my problem myself using a big queue and now it seems working...

But many thanks for your interest in my problem.

Next time i'll use transweb..

Frédéric