DCCP for gstreamer-1.0

[Stefan Sauer]

On 07/25/2017 11:09 PM, Jiaqi Gao wrote:
> Hi,
>
> I'm trying to build a simple streaming pipeline over DCCP to do some
> experiment and measurement. But I noticed the DCCP plugin is
> unavailable in the Gstreamer-1.0 version. The old DCCP plugin code is
> still available in 1.10 version, but only works for Gstreamer 0.10.
>
> Does there any unofficial version available? Or can I just modify
> based on the TCP plugin?
>
> I also tried using Gstreamer 0.10, and try to transfer file using
> following command:
>
> Client:
> gst-launch-0.10 filesrc location=~/video.mpg ! dccpclientsink
> port=8000 host=x.x.x.x
>
> Server:
> gst-launch-0.10 dccpserversrc port=8000 ! filesink location=~/video.mpg
>
> This gave me 0 loss and the file is complete. But when I tried doing
> something else, things are different:
>
> Client:
> gst-launch-0.10 filesrc location=~/video.mpg ! dccpclientsink
> port=8000 host=x.x.x.x
>
> Server:
> gst-launch-0.10 dccpserversrc port=8000 ! decodebin ! ffmpegcolorspace
> ! pngenc snapshot=false ! multifilesink location=~/frame%05.jpg
>
> There are 177 frames in the video.mpg, I can only extract around 150
> frames out. And the result differs between each execution.
>
> The problem doesn't exist just change DCCP to TCP. The experiment
> environment is two servers under the same subnet.
>
> Does anyone has idea on why this happens and has any solution? Can I
> solve it by switching to Gstreamer 1.0?
The dccp plugins were never ported to 1.0.

Stefan
>
> Thanks,
>
> Jiaqi
>
>
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