vdpauh264dec plugin not recognized by playbin

[Philippe Normand]

The GStreamer media-player in WebKit uses playbin2, not playbin.
Have you tried gst-launch with playbin2 ?

Philippe

On Tue, 2011-02-22 at 23:30 +0100, Robert Szelepcsenyi wrote:
> I need to play 1080p H264 movies from html5 video tag in webkit. The system
> features a relatively weak CPU (Atom 230), which is unable to decode such a
> video in realtime. However, the system features nVidia chipset that is able
> to play 1080p videos utilizing HW acceleration (vdpau).
> 
> I have installed vdpauh264dec plugin, which handles this. For example, I can
> play a 1080p video in Quicktime container (mov) using this command:
> 
> gst-launch filesrc location=101_ice_age_2-tlrD_h1080p.mov ! qtdemux !
> vdpauh264dec ! vdpauvideopostprocess ! vdpausink
> 
> When I try to play the file using playbin, I will get an error that
> gstreamer does not know how to handle a h264 video:
> 
> gst-launch playbin uri=file:///local/gstreamer/101_ice_age_2-tlrD_h1080p.mov
> 
> yields:
> 
> ** Message: don't know how to handle video/x-h264, level=(string)4,
> profile=(string)main, codec_data=(buffer)014d4028ffe10
> 014274d4028a9180f0042d803501010130ad7bdf01001000428ce09c8, width=(int)1920,
> height=(int)1056, framerate=(fraction)2997/125                        ,
> pixel-aspect-ratio=(fraction)1/1
> 
> However
> 
> gst-inspect vdpauh264dec
> 
> yields (among other things):
> 
>   SINK template: 'sink'
>     Availability: Always
>     Capabilities:
>       video/x-h264
>              interlaced: false
> 
> 
> I do not understand why playbin will not use vdpauh264dec to play the file.
> 
> html5 video tag in webkit cannot play the file either, problably for the
> same reason.
> 
> 
> If I install ffmpeg plugins (including a h264 decoder), I can play the file
> using playbin and webkit, however, without any acceleration in HW.
> 
> 
> Gstreamer registry should be up-to-date. I rebuilt it with gst-inspect to
> make sure.
> 
> Please, help me to get HW acceleration in webkit.
> 
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>