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surfaceproxy: add helper to create a wrapped surface object.

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Add new gst_vaapi_surface_proxy_new() helper to wrap a surface into
a proxy. The main use case for that is to convey additional information
at the proxy level that would not be suitable to the plain surface.
This commit is contained in:
Gwenole Beauchesne 2015-01-23 16:44:34 +01:00
parent 1810a41c68
commit 568a62ae1e
2 changed files with 50 additions and 5 deletions
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52
gst-libs/gst/vaapi/gstvaapisurfaceproxy.c
View file

@ -62,6 +62,51 @@ gst_vaapi_surface_proxy_class (void)
return &GstVaapiSurfaceProxyClass;
}
static void
gst_vaapi_surface_proxy_init_properties (GstVaapiSurfaceProxy * proxy)
{
proxy->view_id = 0;
proxy->timestamp = GST_CLOCK_TIME_NONE;
proxy->duration = GST_CLOCK_TIME_NONE;
proxy->has_crop_rect = FALSE;
}
/**
* gst_vaapi_surface_proxy_new:
* @surface: a #GstVaapiSurface
*
* Creates a new #GstVaapiSurfaceProxy with the specified
* surface. This allows for transporting additional information that
* are not to be attached to the @surface directly.
*
* Return value: the newly allocated #GstVaapiSurfaceProxy object
*/
GstVaapiSurfaceProxy *
gst_vaapi_surface_proxy_new (GstVaapiSurface * surface)
{
GstVaapiSurfaceProxy *proxy;
g_return_val_if_fail (surface != NULL, NULL);
proxy = (GstVaapiSurfaceProxy *)
gst_vaapi_mini_object_new (gst_vaapi_surface_proxy_class ());
if (!proxy)
return NULL;
proxy->parent = NULL;
proxy->destroy_func = NULL;
proxy->pool = NULL;
proxy->surface = gst_vaapi_object_ref (surface);
if (!proxy->surface)
goto error;
gst_vaapi_surface_proxy_init_properties (proxy);
return proxy;
error:
gst_vaapi_surface_proxy_unref (proxy);
return NULL;
}
/**
* gst_vaapi_surface_proxy_new_from_pool:
* @pool: a #GstVaapiSurfacePool
@ -91,11 +136,8 @@ gst_vaapi_surface_proxy_new_from_pool (GstVaapiSurfacePool * pool)
proxy->surface = gst_vaapi_video_pool_get_object (proxy->pool);
if (!proxy->surface)
goto error;
proxy->view_id = 0;
proxy->timestamp = GST_CLOCK_TIME_NONE;
proxy->duration = GST_CLOCK_TIME_NONE;
proxy->has_crop_rect = FALSE;
gst_vaapi_object_ref (proxy->surface);
gst_vaapi_surface_proxy_init_properties (proxy);
return proxy;
error:
@ -132,7 +174,7 @@ gst_vaapi_surface_proxy_copy (GstVaapiSurfaceProxy * proxy)
copy->parent = gst_vaapi_surface_proxy_ref (proxy->parent ?
proxy->parent : proxy);
copy->pool = gst_vaapi_video_pool_ref (proxy->pool);
copy->pool = proxy->pool ? gst_vaapi_video_pool_ref (proxy->pool) : NULL;
copy->surface = gst_vaapi_object_ref (proxy->surface);
copy->view_id = proxy->view_id;
copy->timestamp = proxy->timestamp;

3
gst-libs/gst/vaapi/gstvaapisurfaceproxy.h
View file

@ -101,6 +101,9 @@ typedef enum
#define GST_VAAPI_SURFACE_PROXY_DURATION(proxy) \
gst_vaapi_surface_proxy_get_duration (proxy)
GstVaapiSurfaceProxy *
gst_vaapi_surface_proxy_new (GstVaapiSurface * surface);
GstVaapiSurfaceProxy *
gst_vaapi_surface_proxy_new_from_pool (GstVaapiSurfacePool * pool);