How to use Gstreamer framework for hardware based video decoder ?

[user1 linux]

hello all,
 
How a hardware based H.264 video decoder driver can be integrate in to gstreamer framework? so that a player developed with gstreamer api can access this driver. anything similar like avstream + directshow architecture in windows.
 
Regards,
userone
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[Julien Moutte-2]

Hi,

If the driver implements one of the known APIs such as VAAPI or VDPAU then it should be easy to get it integrated in existing infrastructures. Otherwise you will have to create a decoder element around that driver and integrate it nicely into GStreamer pipelines.

Best regards,

Julien Moutte,
FLUENDO S.A.

On Mon, Dec 21, 2009 at 1:07 PM, user1 linux <[hidden email]> wrote:

hello all,
 
How a hardware based H.264 video decoder driver can be integrate in to gstreamer framework? so that a player developed with gstreamer api can access this driver. anything similar like avstream + directshow architecture in windows.
 
Regards,
userone
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[Marc Leeman]

> How a hardware based H.264 video decoder driver can be integrate in to
> gstreamer framework? so that a player developed with gstreamer api can
> access this driver. anything similar like avstream + directshow architecture
> in windows.

simply put:

Create an element with the caps as in a software encoder; rip out the
library call and replace it by copying the buffer to your hardware
driver after you've done your buffer alignment if required by your
hardware; the resulting encoded data is handled the same and sent out.

I don't see a real difference between a hardware and software encoder;
they both end up making a call to somewhere else (hardware or software
library).

--
  greetz, marc
This is clearly another case of too many mad scientists, and not enough
hunchbacks.
crichton 2.6.26 #1 PREEMPT Tue Jul 29 21:17:59 CDT 2008 GNU/Linux

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