/**
* gst_vaapi_surface_proxy_new_from_pool:
* @pool: a #GstVaapiSurfacePool
*
* Allocates a new surface from the supplied surface @pool and creates
* the wrapped surface proxy object from it. When the last reference
* to the proxy object is released, then the underlying VA surface is
* pushed back to its parent pool.
*
* Returns: The same newly allocated @proxy object, or %NULL on error
*/
GstVaapiSurfaceProxy *
gst_vaapi_surface_proxy_new_from_pool (GstVaapiSurfacePool * pool)
{
GstVaapiSurfaceProxy *proxy;
g_return_val_if_fail (pool != 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 = gst_vaapi_video_pool_ref (GST_VAAPI_VIDEO_POOL (pool));
proxy->surface = gst_vaapi_video_pool_get_object (proxy->pool);
if (!proxy->surface)
goto error;
gst_vaapi_object_ref (proxy->surface);
gst_vaapi_surface_proxy_init_properties (proxy);
return proxy;
/* ERRORS */
error:
{
gst_vaapi_surface_proxy_unref (proxy);
return NULL;
}
}
/**
* gst_vaapi_coded_buffer_proxy_new_from_pool:
* @pool: a #GstVaapiCodedBufferPool
*
* Allocates a new coded buffer from the supplied @pool and creates
* the wrapped coded buffer proxy object from it. When the last
* reference to the proxy object is released, then the underlying VA
* coded buffer is pushed back to its parent pool.
*
* Returns: The same newly allocated @proxy object, or %NULL on error
*/
GstVaapiCodedBufferProxy *
gst_vaapi_coded_buffer_proxy_new_from_pool (GstVaapiCodedBufferPool * pool)
{
GstVaapiCodedBufferProxy *proxy;
g_return_val_if_fail (pool != NULL, NULL);
g_return_val_if_fail (GST_VAAPI_VIDEO_POOL (pool)->object_type ==
GST_VAAPI_VIDEO_POOL_OBJECT_TYPE_CODED_BUFFER, NULL);
proxy = (GstVaapiCodedBufferProxy *)
gst_vaapi_mini_object_new (gst_vaapi_coded_buffer_proxy_class ());
if (!proxy)
return NULL;
proxy->destroy_func = NULL;
proxy->user_data_destroy = NULL;
proxy->pool = gst_vaapi_video_pool_ref (pool);
proxy->buffer = gst_vaapi_video_pool_get_object (proxy->pool);
if (!proxy->buffer)
goto error;
gst_vaapi_object_ref (proxy->buffer);
return proxy;
/* ERRORS */
error:
{
gst_vaapi_coded_buffer_proxy_unref (proxy);
return NULL;
}
}
static gboolean
ensure_image (GstVaapiVideoMemory * mem)
{
if (!mem->image && mem->use_direct_rendering) {
mem->image = gst_vaapi_surface_derive_image (mem->surface);
if (!mem->image) {
GST_WARNING ("failed to derive image, fallbacking to copy");
mem->use_direct_rendering = FALSE;
} else if (gst_vaapi_surface_get_format (mem->surface) !=
GST_VIDEO_INFO_FORMAT (mem->image_info)) {
gst_vaapi_object_replace (&mem->image, NULL);
mem->use_direct_rendering = FALSE;
}
}
if (!mem->image) {
GstVaapiVideoAllocator *const allocator =
GST_VAAPI_VIDEO_ALLOCATOR_CAST (GST_MEMORY_CAST (mem)->allocator);
mem->image = gst_vaapi_video_pool_get_object (allocator->image_pool);
if (!mem->image)
return FALSE;
}
gst_vaapi_video_meta_set_image (mem->meta, mem->image);
return TRUE;
}
static gboolean
set_image_from_pool (GstVaapiVideoMeta * meta, GstVaapiVideoPool * pool)
{
GstVaapiImage *image;
image = gst_vaapi_video_pool_get_object (pool);
if (!image)
return FALSE;
set_image (meta, image);
meta->image_pool = gst_vaapi_video_pool_ref (pool);
return TRUE;
}
int
main (int argc, char *argv[])
{
GstVaapiDisplay *display;
GstVaapiSurface *surface;
GstVaapiID surface_id;
GstVaapiSurface *surfaces[MAX_SURFACES];
GstVaapiVideoPool *pool;
gint i;
static const GstVaapiChromaType chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
static const guint width = 320;
static const guint height = 240;
if (!video_output_init (&argc, argv, NULL))
g_error ("failed to initialize video output subsystem");
display = video_output_create_display (NULL);
if (!display)
g_error ("could not create Gst/VA display");
surface = gst_vaapi_surface_new (display, chroma_type, width, height);
if (!surface)
g_error ("could not create Gst/VA surface");
surface_id = gst_vaapi_surface_get_id (surface);
g_print ("created surface %" GST_VAAPI_ID_FORMAT "\n",
GST_VAAPI_ID_ARGS (surface_id));
gst_vaapi_object_unref (surface);
pool = gst_vaapi_surface_pool_new (display, GST_VIDEO_FORMAT_ENCODED,
width, height);
if (!pool)
g_error ("could not create Gst/VA surface pool");
for (i = 0; i < MAX_SURFACES; i++) {
surface = gst_vaapi_video_pool_get_object (pool);
if (!surface)
g_error ("could not allocate Gst/VA surface from pool");
g_print ("created surface %" GST_VAAPI_ID_FORMAT " from pool\n",
GST_VAAPI_ID_ARGS (gst_vaapi_surface_get_id (surface)));
surfaces[i] = surface;
}
/* Check the pool doesn't return the last free'd surface */
surface = gst_vaapi_object_ref (surfaces[1]);
for (i = 0; i < 2; i++)
gst_vaapi_video_pool_put_object (pool, surfaces[i]);
for (i = 0; i < 2; i++) {
surfaces[i] = gst_vaapi_video_pool_get_object (pool);
if (!surfaces[i])
g_error ("could not re-allocate Gst/VA surface%d from pool", i);
g_print ("created surface %" GST_VAAPI_ID_FORMAT " from pool (realloc)\n",
GST_VAAPI_ID_ARGS (gst_vaapi_surface_get_id (surfaces[i])));
}
if (surface == surfaces[0])
g_error ("Gst/VA pool doesn't queue free surfaces");
for (i = MAX_SURFACES - 1; i >= 0; i--) {
if (!surfaces[i])
continue;
gst_vaapi_video_pool_put_object (pool, surfaces[i]);
surfaces[i] = NULL;
}
/* Unref in random order to check objects are correctly refcounted */
gst_vaapi_display_unref (display);
gst_vaapi_video_pool_unref (pool);
gst_vaapi_object_unref (surface);
video_output_exit ();
return 0;
}
static GstVaapiSurface *
vpp_convert (GstVaapiWindow * window,
GstVaapiSurface * surface,
const GstVaapiRectangle * src_rect,
const GstVaapiRectangle * dst_rect, guint flags)
{
GstVaapiWindowWaylandPrivate *const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
GstVaapiDisplay *const display = GST_VAAPI_OBJECT_DISPLAY (window);
GstVaapiSurface *vpp_surface = NULL;
GstVaapiFilterStatus status;
/* Ensure VA surface pool is created */
/* XXX: optimize the surface format to use. e.g. YUY2 */
if (!priv->surface_pool) {
priv->surface_pool = gst_vaapi_surface_pool_new (display,
priv->surface_format, window->width, window->height);
if (!priv->surface_pool)
return NULL;
gst_vaapi_filter_replace (&priv->filter, NULL);
}
/* Ensure VPP pipeline is built */
if (!priv->filter) {
priv->filter = gst_vaapi_filter_new (display);
if (!priv->filter)
goto error_create_filter;
if (!gst_vaapi_filter_set_format (priv->filter, priv->surface_format))
goto error_unsupported_format;
}
if (!gst_vaapi_filter_set_cropping_rectangle (priv->filter, src_rect))
return NULL;
if (!gst_vaapi_filter_set_target_rectangle (priv->filter, dst_rect))
return NULL;
/* Post-process the decoded source surface */
vpp_surface = gst_vaapi_video_pool_get_object (priv->surface_pool);
if (!vpp_surface)
return NULL;
status = gst_vaapi_filter_process (priv->filter, surface, vpp_surface, flags);
if (status != GST_VAAPI_FILTER_STATUS_SUCCESS)
goto error_process_filter;
return vpp_surface;
/* ERRORS */
error_create_filter:
{
GST_WARNING ("failed to create VPP filter. Disabling");
priv->use_vpp = FALSE;
return NULL;
}
error_unsupported_format:
{
GST_ERROR ("unsupported render target format %s",
gst_vaapi_video_format_to_string (priv->surface_format));
priv->use_vpp = FALSE;
return NULL;
}
error_process_filter:
{
GST_ERROR ("failed to process surface %" GST_VAAPI_ID_FORMAT " (error %d)",
GST_VAAPI_ID_ARGS (GST_VAAPI_OBJECT_ID (surface)), status);
gst_vaapi_video_pool_put_object (priv->surface_pool, vpp_surface);
return NULL;
}
}
