![]() |
![]() |
![]() |
GStreamer VA-API Plugins 0.10 Library Reference Manual | ![]() |
---|---|---|---|---|
Top | Description |
GstVaapiVideoMeta * gst_vaapi_video_meta_new (GstVaapiDisplay *display
); GstVaapiVideoMeta * gst_vaapi_video_meta_new_from_pool (GstVaapiVideoPool *pool
); GstVaapiVideoMeta * gst_vaapi_video_meta_new_with_image (GstVaapiImage *image
); GstVaapiVideoMeta * gst_vaapi_video_meta_new_with_surface (GstVaapiSurface *surface
); GstVaapiVideoMeta * gst_vaapi_video_meta_new_with_surface_proxy (GstVaapiSurfaceProxy *proxy
); GstVaapiVideoMeta * gst_vaapi_video_meta_ref (GstVaapiVideoMeta *meta
); void gst_vaapi_video_meta_unref (GstVaapiVideoMeta *meta
); void gst_vaapi_video_meta_replace (GstVaapiVideoMeta **old_meta_ptr
,GstVaapiVideoMeta *new_meta
); GstVaapiDisplay * gst_vaapi_video_meta_get_display (GstVaapiVideoMeta *meta
); GstVaapiImage * gst_vaapi_video_meta_get_image (GstVaapiVideoMeta *meta
); void gst_vaapi_video_meta_set_image (GstVaapiVideoMeta *meta
,GstVaapiImage *image
); gboolean gst_vaapi_video_meta_set_image_from_pool (GstVaapiVideoMeta *meta
,GstVaapiVideoPool *pool
); GstVaapiSurface * gst_vaapi_video_meta_get_surface (GstVaapiVideoMeta *meta
); void gst_vaapi_video_meta_set_surface (GstVaapiVideoMeta *meta
,GstVaapiSurface *surface
); gboolean gst_vaapi_video_meta_set_surface_from_pool (GstVaapiVideoMeta *meta
,GstVaapiVideoPool *pool
); void gst_vaapi_video_meta_set_surface_converter (GstVaapiVideoMeta *meta
,GFunc func
); GFunc gst_vaapi_video_meta_get_surface_converter (GstVaapiVideoMeta *meta
); GstVaapiSurfaceProxy * gst_vaapi_video_meta_get_surface_proxy (GstVaapiVideoMeta *meta
); void gst_vaapi_video_meta_set_surface_proxy (GstVaapiVideoMeta *meta
,GstVaapiSurfaceProxy *proxy
); guint gst_vaapi_video_meta_get_render_flags (GstVaapiVideoMeta *meta
); void gst_vaapi_video_meta_set_render_flags (GstVaapiVideoMeta *meta
,guint flags
);
GstVaapiVideoMeta * gst_vaapi_video_meta_new (GstVaapiDisplay *display
);
Creates an empty GstVaapiVideoMeta. The caller is responsible for completing the initialization of the meta with the gst_vaapi_video_meta_set_*() functions.
This function shall only be called from within gstreamer-vaapi plugin elements.
|
a GstVaapiDisplay |
Returns : |
the newly allocated GstVaapiVideoMeta, or NULL or error |
GstVaapiVideoMeta * gst_vaapi_video_meta_new_from_pool (GstVaapiVideoPool *pool
);
Creates a GstVaapiVideoMeta with a video object allocated from a pool
.
Only GstVaapiSurfacePool and GstVaapiImagePool pools are supported.
The meta object is destroyed through the last call to
gst_vaapi_video_meta_unref()
and the video objects are pushed back
to their respective pools.
|
a GstVaapiVideoPool |
Returns : |
the newly allocated GstVaapiVideoMeta, or NULL on error |
GstVaapiVideoMeta * gst_vaapi_video_meta_new_with_image (GstVaapiImage *image
);
Creates a GstVaapiVideoMeta with the specified image
. The resulting
meta holds an additional reference to the image
.
This function shall only be called from within gstreamer-vaapi plugin elements.
|
a GstVaapiImage |
Returns : |
the newly allocated GstVaapiVideoMeta, or NULL on error |
GstVaapiVideoMeta * gst_vaapi_video_meta_new_with_surface
(GstVaapiSurface *surface
);
Creates a GstVaapiVideoMeta with the specified surface
. The resulting
meta holds an additional reference to the surface
.
This function shall only be called from within gstreamer-vaapi plugin elements.
|
a GstVaapiSurface |
Returns : |
the newly allocated GstVaapiVideoMeta, or NULL on error |
GstVaapiVideoMeta * gst_vaapi_video_meta_new_with_surface_proxy
(GstVaapiSurfaceProxy *proxy
);
Creates a GstVaapiVideoMeta with the specified surface proxy
. The
resulting meta holds an additional reference to the proxy
.
This function shall only be called from within gstreamer-vaapi plugin elements.
|
a GstVaapiSurfaceProxy |
Returns : |
the newly allocated GstVaapiVideoMeta, or NULL on error |
GstVaapiVideoMeta * gst_vaapi_video_meta_ref (GstVaapiVideoMeta *meta
);
Atomically increases the reference count of the given meta
by one.
|
a GstVaapiVideoMeta |
Returns : |
The same meta argument |
void gst_vaapi_video_meta_unref (GstVaapiVideoMeta *meta
);
Atomically decreases the reference count of the meta
by one. If
the reference count reaches zero, the object will be free'd.
|
a GstVaapiVideoMeta |
void gst_vaapi_video_meta_replace (GstVaapiVideoMeta **old_meta_ptr
,GstVaapiVideoMeta *new_meta
);
new_meta
. This means that old_meta_ptr
shall reference a valid
Atomically replaces the meta object held in old_meta_ptr
with
object. However, new_meta
can be NULL.
|
a pointer to a GstVaapiVideoMeta |
|
a GstVaapiVideoMeta |
GstVaapiDisplay * gst_vaapi_video_meta_get_display (GstVaapiVideoMeta *meta
);
Retrieves the GstVaapiDisplay the meta
is bound to. The meta
owns the returned GstVaapiDisplay object so the caller is
responsible for calling g_object_ref()
when needed.
|
a GstVaapiVideoMeta |
Returns : |
the GstVaapiDisplay the meta is bound to |
GstVaapiImage * gst_vaapi_video_meta_get_image (GstVaapiVideoMeta *meta
);
Retrieves the GstVaapiImage bound to the meta
. The meta
owns
the GstVaapiImage so the caller is responsible for calling
g_object_ref()
when needed.
|
a GstVaapiVideoMeta |
Returns : |
the GstVaapiImage bound to the meta , or NULL if
there is none |
void gst_vaapi_video_meta_set_image (GstVaapiVideoMeta *meta
,GstVaapiImage *image
);
Binds image
to the meta
. If the meta
contains another image
previously allocated from a pool, it's pushed back to its parent
pool and the pool is also released.
|
a GstVaapiVideoMeta |
|
a GstVaapiImage |
gboolean gst_vaapi_video_meta_set_image_from_pool (GstVaapiVideoMeta *meta
,GstVaapiVideoPool *pool
);
Binds a newly allocated video object from the pool
. The pool
shall be of type GstVaapiImagePool. Previously allocated objects
are released and returned to their parent pools, if any.
|
a GstVaapiVideoMeta |
|
a GstVaapiVideoPool |
Returns : |
TRUE on success |
GstVaapiSurface * gst_vaapi_video_meta_get_surface (GstVaapiVideoMeta *meta
);
Retrieves the GstVaapiSurface bound to the meta
. The meta
owns the GstVaapiSurface so the caller is responsible for calling
g_object_ref()
when needed.
|
a GstVaapiVideoMeta |
Returns : |
the GstVaapiSurface bound to the meta , or NULL if
there is none |
void gst_vaapi_video_meta_set_surface (GstVaapiVideoMeta *meta
,GstVaapiSurface *surface
);
Binds surface
to the meta
. If the meta
contains another
surface previously allocated from a pool, it's pushed back to its
parent pool and the pool is also released.
|
a GstVaapiVideoMeta |
|
a GstVaapiSurface |
gboolean gst_vaapi_video_meta_set_surface_from_pool (GstVaapiVideoMeta *meta
,GstVaapiVideoPool *pool
);
Binds a newly allocated video object from the pool
. The pool
shall be of type GstVaapiSurfacePool. Previously allocated objects
are released and returned to their parent pools, if any.
|
a GstVaapiVideoMeta |
|
a GstVaapiVideoPool |
Returns : |
TRUE on success |
void gst_vaapi_video_meta_set_surface_converter (GstVaapiVideoMeta *meta
,GFunc func
);
Sets the meta
surface converter function to func
.
|
a GstVaapiVideoMeta |
|
a pointer to the surface converter function |
GFunc gst_vaapi_video_meta_get_surface_converter
(GstVaapiVideoMeta *meta
);
Retrieves the surface converter bound to the meta
.
|
a GstVaapiVideoMeta |
Returns : |
the surface converter associated with the video meta
|
GstVaapiSurfaceProxy * gst_vaapi_video_meta_get_surface_proxy
(GstVaapiVideoMeta *meta
);
Retrieves the GstVaapiSurfaceProxy bound to the meta
. The meta
owns the GstVaapiSurfaceProxy so the caller is responsible for calling
g_object_ref()
when needed.
|
a GstVaapiVideoMeta |
Returns : |
the GstVaapiSurfaceProxy bound to the meta , or
NULL if there is none |
void gst_vaapi_video_meta_set_surface_proxy (GstVaapiVideoMeta *meta
,GstVaapiSurfaceProxy *proxy
);
Binds surface proxy
to the meta
. If the meta
contains another
surface previously allocated from a pool, it's pushed back to its
parent pool and the pool is also released.
|
a GstVaapiVideoMeta |
|
a GstVaapiSurfaceProxy |
guint gst_vaapi_video_meta_get_render_flags
(GstVaapiVideoMeta *meta
);
Retrieves the surface render flags bound to the meta
.
|
a GstVaapiVideoMeta |
Returns : |
a combination for GstVaapiSurfaceRenderFlags |
void gst_vaapi_video_meta_set_render_flags (GstVaapiVideoMeta *meta
,guint flags
);
Sets GstVaapiSurfaceRenderFlags to the meta
.
|
a GstVaapiVideoMeta |
|
a set of surface render flags |