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Bug 736721 - Add abstraction for exported VA buffers (GstVaapiBufferProxy)
Add abstraction for exported VA buffers (GstVaapiBufferProxy)
Status: RESOLVED FIXED
Product: gstreamer-vaapi
Classification: Other
Component: general
git master
Other Linux
: Normal normal
: ---
Assigned To: gstreamer-vaapi maintainer(s)
gstreamer-vaapi maintainer(s)
Depends on:
Blocks: 731852 735364 736717
 
 
Reported: 2014-09-16 06:45 UTC by Gwenole Beauchesne
Modified: 2015-01-28 16:37 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Gwenole Beauchesne 2014-09-16 06:45:53 UTC 
The VA buffer export APIs work for a particular lifetime starting from vaAcquireBufferHandle() and ending with vaReleaseBufferHandle(). As such, it could be much more convenient to support implicit releases by simply having a refcount reaching zero.

Proposed APIs:
- Name:
  GstVaapiBufferProxy
- gst_vaapi_buffer_proxy_new(GstVaapiBufferProxyClass *klass, GstVaapiObject *parent):
  internal function
- gst_vaapi_buffer_proxy_get_parent(GstVaapiBufferProxy *proxy):
  Retrieves the parent GstVaapiObject (GstVaapiSurface, GstVaapiImage, etc.)
- gst_vaapi_buffer_proxy_get_type(GstVaapiBufferProxy *proxy):
  Retrieves the type of the underlying buffer handle
- gst_vaapi_buffer_proxy_get_handle(GstVaapiBufferProxy *proxy):
  Retrieves the underlying buffer handle
- gst_vaapi_buffer_proxy_get_size(GstVaapiBufferProxy *proxy):
  Retrieves the size of the buffer
Comment 1 Gwenole Beauchesne 2015-01-28 16:37:56 UTC 
commit 250260cc36189911c5ebf62eade4c1a1647c85d8
Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Date:   Mon Sep 15 10:58:51 2014 +0200

    Add abstraction for exported VA buffers.
    
    The VA buffer export APIs work for a particular lifetime starting from
    vaAcquireBufferHandle() and ending with vaReleaseBufferHandle(). As such,
    it could be much more convenient to support implicit releases by simply
    having a refcount reaching zero.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=736721