VDPAU h264 and UPD streaming

[Lauraire]

Hi,

 

I am trying to do video streaming with UDP and take advantage of VDPAU decoder.... but no way to have this working! Please consider those 2 examples :

 

1 - UDP / h264 using ffdec_h264:

 

CLIENT : gst-launch-0.10 udpsrc port=10308 ! application/x-rtp, clock-rate=90000, payload=96 ! rtph264depay ! ffdec_h264 ! xvimagesink

 

SERVER : gst-launch-0.10 filesrc location=/myvideo.mkv ! matroskademux ! decodebin ! queue ! x264enc ! video/x-h264 ! rtph264pay pt=96 ! udpsink host=IP@@@@@ port=10308 sync=false

 

===> This works fine!

 

2 - UDP / h264 using vdpauH264dec :

 

CLIENT : gst-launch-0.10 udpsrc port=10308 ! application/x-rtp, clock-rate=90000, payload=96 ! rtph264depay ! vdpauh264dec ! vdpauvideopostprocess ! vdpausink

 

SERVER : gst-launch-0.10 filesrc location=/myvideo.mkv ! matroskademux ! decodebin ! queue ! x264enc ! video/x-h264 ! rtph264pay pt=96 ! udpsink host=IP@@@@@ port=10308 sync=false

 

===> No display.... and debug claims for "invalid packet size"!

 

What is wrog with vdpau decoding in this case?

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[Carl-Anton Ingmarsson]

> 2 - UDP / h264 using vdpauH264dec :
>  
> CLIENT : gst-launch-0.10 udpsrc port=10308 ! application/x-rtp,
> clock-rate=90000, payload=96 ! rtph264depay ! vdpauh264dec !
> vdpauvideopostprocess ! vdpausink
>  
> SERVER : gst-launch-0.10 filesrc location=/myvideo.mkv !
> matroskademux ! decodebin ! queue ! x264enc ! video/x-h264 !
> rtph264pay pt=96 ! udpsink host=IP@@@@@ port=10308 sync=false
>  
> ===> No display.... and debug claims for "invalid packet size"!
>  
> What is wrog with vdpau decoding in this case?
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

Hi!

The vdpau h264 decoder needs more work and testing. You could probably
try if the gst-vaapi plugins work better since those should work for
vdpau too.

best regards,
Carl-Anton

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[Lauraire]

Thanks Carl,

 

I have succeeded in displaying an HD video via UDProtocol with those gst-launch pipe :

SERVER : gst-launch-0.10 filesrc location=/home/jeremy/Bureau/FighterPilot.wmv ! decodebin ! x264enc ! rtph264pay pt=96 ! udpsink host=192.168.1.14 port=10308 sync=false

CLIENT : gst-launch-0.10 udpsrc port=10308 ! application/x-rtp, clock-rate=90000, payload=96 ! rtph264depay ! vdpauh264dec ! queue ! autovideosink

The main modification is that I use an autovideosink (in fact xvimagesink).... I must admit that I can't really explain why... The result is perfect! VDPAU acceleration seems to be there (<20% CPU for decoding operation of this 1280*720 video).

 

My problem now is to do this from a raw format video.

 

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