vdpauh264dec plugin not recognized by playbin

[Stefan Kost]

hi,

On 23.02.2011 00:30, 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
Please post the whole gst-inspect output here. Is the RANK for the
element >0?

Stefan

> 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.
>
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