Transcoding

[limiteddi]

Has anyone tried transcoding with this product? Wonder how it would handle ffmpeg or vlc transcoding?

[diabloss]

It is a small ARM , dunno how realiable could be using transcoding alongside with decrypting and multicast streaming.

[updatelee]

a quick google search shows that gstreamer and IMX6 support transcoding, but I havent tried it. Search and give it a go

UDL

[piotrasd]

yeep i.MX6 have hardware transcoder even for 2 streams

and i found https://github.com/Freescale/gstreamer-imx

[steven]

Hi All

Later we will release a new product which use ST chip to transcode 4 streams at the same time
and up to 1080P : ),more information will be released later.

Thanks

Kind Regards

steven

[nrm]

The examples on the Freescale are the best reference you could get for the TBS2910.

https://community.freescale.com/docs/DOC-93448

* There is a limit for the number of pipelines which can be run simultaneously, for high resolution input files, at most two for 1080p and four for 720p.

Perhaps it works for 8x480p streams. I've tested Gstreamer-imx and it works great. Still some issues with H264 that I'm trying to understand, but so far video hardware decoding->encoding is quite stable.

Regards,
Nuno

[vpeter]

nrm, woulkd be possible to capture DVB stream and transcode it to lower reslution in real-time?

[nrm]

Yes,

From file previously recorded from DVB:
https://dl.dropboxusercontent.com/u/63418458/hls/sky.ts

RATE=2000 ; gst-launch-1.0 --gst-debug-level=2 -vv filesrc location=sky.ts typefind=true ! tsdemux name=demux demux. ! queue ! mpegvideoparse ! imxvpudec ! imxvpuenc_h264 bitrate=$RATE gop-size=16 ! h264parse ! mux. demux. ! queue ! mpegaudioparse ! mux. mpegtsmux name=mux ! udpsink port=8889 host=127.0.0.1

From the same DVB/TS stream

RATE=2000 ; gst-launch-1.0 --gst-debug-level=5 -vv udpsrc port=5000 typefind=true ! tsdemux name=demux demux. ! queue ! mpegvideoparse ! imxvpudec ! imxvpuenc_h264 bitrate=$RATE gop-size=16 ! h264parse ! mux. demux. ! queue ! mpegaudioparse ! mux. mpegtsmux name=mux ! udpsink port=8889 host=10.0.0.55

You can then open the stream on VLC (machine's ip 10.0.0.55) using udp://@:8889

Though this might seem to work at first, Gstreamer stops streaming after a while and I still don't know why.

Here are the gists I used to install gstreamer-imx. I used Linux 12.04 I think, the one from linaro.
https://gist.github.com/nrmmota
1) libfslvpuwrap
2) gstreamer