Transcoding
Posted: Mon Aug 18, 2014 12:09 pmHas anyone tried transcoding with this product? Wonder how it would handle ffmpeg or vlc transcoding?
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Posted: Mon Aug 18, 2014 12:09 pmRe: Transcoding
Posted: Mon Aug 18, 2014 4:20 pmIt is a small ARM , dunno how realiable could be using transcoding alongside with decrypting and multicast streaming.
Re: Transcoding
Posted: Mon Aug 18, 2014 11:18 pma quick google search shows that gstreamer and IMX6 support transcoding, but I havent tried it. Search and give it a go
UDL
UDL
Re: Transcoding
Posted: Tue Aug 19, 2014 4:33 amyeep i.MX6 have hardware transcoder even for 2 streams 
and i found https://github.com/Freescale/gstreamer-imx
and i found https://github.com/Freescale/gstreamer-imx
Re: Transcoding
Posted: Mon Aug 25, 2014 3:03 pmHi 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
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
Re: Transcoding
Posted: Mon Sep 22, 2014 7:35 pmThe 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
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
Re: Transcoding
Posted: Mon Sep 22, 2014 9:48 pmnrm, woulkd be possible to capture DVB stream and transcode it to lower reslution in real-time?
Re: Transcoding
Posted: Tue Sep 23, 2014 9:52 pmYes,
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
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