Hi all,
I am trying to perform hardware accelerated decode of 720P h264 encoded
stream using Gstreamer Vaapi decode and Vaapisink plugins .I am using
ATI Radeon 5600 GPU .
My requirement is to get the image data from the Vaapi Surface after
decoding .I want to perform some operations on this image like scaling
,composing the two images .
As of now i tried to extract the image from the Vaapisurface by using
the functions in Gstreamer Vaapi library ,
image = gst_vaapi_surface_derive_image(surf);
value = gst_vaapi_surface_get_image(surf,image);
the about functions were unsuccessful and i couldn't get the image data
from the Vaapi surface .
Is there any way i can perform scaling and composing directly on the
Vaapi surfaces without extracting the image data ?what do you suggest
,should i use gstreamer vaapi plugins or libva API's directly to do the
above mentioned tasks ?if i can work using libva API's ,can anyone
explain me how to perform scaling and composing of two vaapi surfaces?
Any help is highly appreciated .
Thanks,
N Sivaramkrishna.
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