/**
* gst_vaapi_subpicture_new:
* @image: a #GstVaapiImage
* @flags: #GstVaapiSubpictureFlags, or zero
*
* Creates a new #GstVaapiSubpicture with @image as source pixels. The
* newly created object holds a reference on @image.
*
* Return value: the newly allocated #GstVaapiSubpicture object
*/
GstVaapiSubpicture *gst_vaapi_subpicture_new (GstVaapiImage * image,
guint flags)
{
GstVaapiSubpicture *subpicture;
GstVaapiDisplay *display;
GstVideoFormat format;
guint va_flags;
g_return_val_if_fail (image != NULL, NULL);
GST_DEBUG ("create from image %" GST_VAAPI_ID_FORMAT,
GST_VAAPI_ID_ARGS (GST_VAAPI_OBJECT_ID (image)));
display = GST_VAAPI_OBJECT_DISPLAY (image);
format = GST_VAAPI_IMAGE_FORMAT (image);
if (!gst_vaapi_display_has_subpicture_format (display, format, &va_flags))
return NULL;
if (flags & ~va_flags)
return NULL;
subpicture = gst_vaapi_object_new (gst_vaapi_subpicture_class (), display);
if (!subpicture)
return NULL;
subpicture->global_alpha = 1.0f;
if (!gst_vaapi_subpicture_set_image (subpicture, image))
goto error;
return subpicture;
error:
gst_vaapi_object_unref (subpicture);
return NULL;
}
static inline void
allocator_configure_surface_info (GstVaapiDisplay * display,
GstVaapiVideoAllocator * allocator)
{
const GstVideoInfo *vinfo;
GstVaapiSurface *surface = NULL;
GstVaapiImage *image = NULL;
gboolean updated;
GstVideoFormat fmt;
vinfo = &allocator->video_info;
fmt = gst_vaapi_video_format_get_best_native (GST_VIDEO_INFO_FORMAT (vinfo));
gst_video_info_set_format (&allocator->surface_info, fmt,
GST_VIDEO_INFO_WIDTH (vinfo), GST_VIDEO_INFO_HEIGHT (vinfo));
/* nothing to configure */
if (USE_NATIVE_FORMATS ||
GST_VIDEO_INFO_FORMAT (vinfo) == GST_VIDEO_FORMAT_ENCODED)
return;
surface = new_surface (display, vinfo);
if (!surface)
goto bail;
image = gst_vaapi_surface_derive_image (surface);
if (!image)
goto bail;
if (!gst_vaapi_image_map (image))
goto bail;
updated = gst_video_info_update_from_image (&allocator->surface_info, image);
allocator->has_direct_rendering = !USE_NATIVE_FORMATS && updated &&
(GST_VAAPI_IMAGE_FORMAT (image) == GST_VIDEO_INFO_FORMAT (vinfo));
GST_INFO ("has direct-rendering for %s surfaces: %s",
GST_VIDEO_INFO_FORMAT_STRING (&allocator->surface_info),
allocator->has_direct_rendering ? "yes" : "no");
gst_vaapi_image_unmap (image);
bail:
if (surface)
gst_vaapi_object_unref (surface);
if (image)
gst_vaapi_object_unref (image);
}
/**
* gst_vaapi_surface_get_format:
* @surface: a #GstVaapiSurface
*
* Returns the #GstVideoFormat the @surface was created with.
*
* Return value: the #GstVideoFormat, or %GST_VIDEO_FORMAT_ENCODED if
* the surface was not created with an explicit video format, or if
* the underlying video format could not be determined
*/
GstVideoFormat
gst_vaapi_surface_get_format (GstVaapiSurface * surface)
{
g_return_val_if_fail (surface != NULL, 0);
/* Try to determine the underlying VA surface format */
if (surface->format == GST_VIDEO_FORMAT_UNKNOWN) {
GstVaapiImage *const image = gst_vaapi_surface_derive_image (surface);
if (image) {
surface->format = GST_VAAPI_IMAGE_FORMAT (image);
gst_vaapi_object_unref (image);
}
if (surface->format == GST_VIDEO_FORMAT_UNKNOWN)
surface->format = GST_VIDEO_FORMAT_ENCODED;
}
return GST_VAAPI_SURFACE_FORMAT (surface);
}