/**
* 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;
}
/*
* gst_vaapi_coded_buffer_new:
* @context: the parent #GstVaapiContext object
* @buf_size: the buffer size in bytes
*
* Creates a new VA coded buffer bound to the supplied @context.
*
* Return value: the newly allocated #GstVaapiCodedBuffer object, or
* %NULL if an error occurred
*/
GstVaapiCodedBuffer *
gst_vaapi_coded_buffer_new (GstVaapiContext * context, guint buf_size)
{
GstVaapiCodedBuffer *buf;
GstVaapiDisplay *display;
g_return_val_if_fail (context != NULL, NULL);
g_return_val_if_fail (buf_size > 0, NULL);
display = GST_VAAPI_OBJECT_DISPLAY (context);
g_return_val_if_fail (display != NULL, NULL);
buf = gst_vaapi_object_new (gst_vaapi_coded_buffer_class (), display);
if (!buf)
return NULL;
if (!coded_buffer_create (buf, buf_size, context))
goto error;
return buf;
/* ERRORS */
error:
{
gst_vaapi_object_unref (buf);
return NULL;
}
}
static inline GstVaapiPixmap *
gst_vaapi_pixmap_new_internal (const GstVaapiPixmapClass * pixmap_class,
GstVaapiDisplay * display)
{
g_assert (pixmap_class->create != NULL);
g_assert (pixmap_class->render != NULL);
return gst_vaapi_object_new (GST_VAAPI_OBJECT_CLASS (pixmap_class), display);
}
/**
* gst_vaapi_surface_new:
* @display: a #GstVaapiDisplay
* @chroma_type: the surface chroma format
* @width: the requested surface width
* @height: the requested surface height
*
* Creates a new #GstVaapiSurface with the specified chroma format and
* dimensions.
*
* Return value: the newly allocated #GstVaapiSurface object
*/
GstVaapiSurface *
gst_vaapi_surface_new (GstVaapiDisplay * display,
GstVaapiChromaType chroma_type, guint width, guint height)
{
GstVaapiSurface *surface;
GST_DEBUG ("size %ux%u, chroma type 0x%x", width, height, chroma_type);
surface = gst_vaapi_object_new (gst_vaapi_surface_class (), display);
if (!surface)
return NULL;
if (!gst_vaapi_surface_create (surface, chroma_type, width, height))
goto error;
return surface;
error:
gst_vaapi_object_unref (surface);
return NULL;
}
/**
* gst_vaapi_surface_new_from_buffer_proxy:
* @display: a #GstVaapiDisplay
* @proxy: a #GstVaapiBufferProxy
* @info: the #GstVideoInfo structure defining the layout of the buffer
*
* Creates a new #GstVaapiSurface with the supplied VA buffer proxy
* abstraction. The underlying VA buffer memory type could be anything
* that is supported by the VA driver.
*
* The resulting #GstVaapiSurface object owns an extra reference to
* the buffer @proxy, so the caller can safely release that handle as
* early as on return of this call.
*
* Return value: the newly allocated #GstVaapiSurface object, or %NULL
* if creation of VA surface failed or is not supported
*/
GstVaapiSurface *
gst_vaapi_surface_new_from_buffer_proxy (GstVaapiDisplay * display,
GstVaapiBufferProxy * proxy, const GstVideoInfo * info)
{
GstVaapiSurface *surface;
g_return_val_if_fail (proxy != NULL, NULL);
g_return_val_if_fail (info != NULL, NULL);
surface = gst_vaapi_object_new (gst_vaapi_surface_class (), display);
if (!surface)
return NULL;
if (!gst_vaapi_surface_create_from_buffer_proxy (surface, proxy, info))
goto error;
return surface;
error:
gst_vaapi_object_unref (surface);
return NULL;
}
/**
* gst_vaapi_surface_new_full:
* @display: a #GstVaapiDisplay
* @vip: the pointer to a #GstVideoInfo
* @flags: (optional) allocation flags
*
* Creates a new #GstVaapiSurface with the specified video information
* and optional #GstVaapiSurfaceAllocFlags
*
* Return value: the newly allocated #GstVaapiSurface object, or %NULL
* if creation of VA surface with explicit pixel format is not
* supported or failed.
*/
GstVaapiSurface *
gst_vaapi_surface_new_full (GstVaapiDisplay * display,
const GstVideoInfo * vip, guint flags)
{
GstVaapiSurface *surface;
GST_DEBUG ("size %ux%u, format %s, flags 0x%08x", GST_VIDEO_INFO_WIDTH (vip),
GST_VIDEO_INFO_HEIGHT (vip),
gst_vaapi_video_format_to_string (GST_VIDEO_INFO_FORMAT (vip)), flags);
surface = gst_vaapi_object_new (gst_vaapi_surface_class (), display);
if (!surface)
return NULL;
if (!gst_vaapi_surface_create_full (surface, vip, flags))
goto error;
return surface;
error:
gst_vaapi_object_unref (surface);
return NULL;
}
