topic Re: Audio Video bridge for LS1021A-IOT in Layerscape

Audio Video bridge for LS1021A-IOT

prabinca4u — Mon, 14 Mar 2016 09:28:31 GMT

Hi dear freescale team

Right now I'm working on LS1021A-IOT to implement AVB on that. I have an Open AVB but it is for NIC CARD (using PCI), I want to test AVB without NIC CARD ie direclty use eth0 or eth1 interface on LS1021A-IOT board. So I need the AVB source code for this, Can you please provide me the link for download freescale generic AVB source code.

Re: Audio Video bridge for LS1021A-IOT

Pavel — Tue, 15 Mar 2016 12:05:00 GMT

Look at the following page:

http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/s32-processors-and-microcontrollers/freescales-automotive-audio-video-bridging-software-ethernet-avb-system-solution:AUTO-AUDIO-VBS#supportDevicesTree

Find "Supporting device" on this page.

Have a great day,
Pavel

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Re: Audio Video bridge for LS1021A-IOT

prabinca4u — Wed, 16 Mar 2016 13:25:08 GMT

Thanks pavel for your reply

I got an open AVB, And I just cross compiled it for my LS1021A-IOT. My aim is to test talker listener program on two separate LS1 board respectively. On taker it use gstreamer-1.0 for sending the simple sine audio to listener by entering given command at talker as shown below .

gst-launch-1.0 -v -e alsasrc device=hw:0,0 do-timestamp=true ! audioconvert ! audioresample ! wavenc ! fdsink | ./talker eth0 256

when I run this I got error like this "WARNING: erroneous pipeline: no element wavenc""

And is listener side

./listener eth0 256 | gst-launch-1.0 fdsrc fd=0 ! audioparse rate=32000 channels=2 ! alsasink sync=false async=false

On running this I'm getting error like "WARNING: erroneous pipeline: no element audioparse".

I have Installed gstreamer-1.0 and plugins (good,bad,ugly,base,meta-base and omx). Even though the audioparse functionality at listener and wavenc at talker is not getting for gstreamer.

But gstreamer-1.0 have the plugins such as alsasrc, audioconvert, audioresample, fdsink, alsasink. That I have verified with gst-inspect command.

But on verifying this for wavenc and audioparse , I got "No such element or plugin 'waveenc OR audioparse' "

Re: Audio Video bridge for LS1021A-IOT

Pavel — Wed, 23 Mar 2016 06:16:56 GMT

Look at the following pages about inspection of gsteamer:

https://gstreamer.freedesktop.org/data/doc/gstreamer/head/faq/html/chapter-using.html

https://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-checklist-applications.html

http://docs.gstreamer.com/display/GstSDK/gst-inspect

Have a great day,
Pavel Chubakov