gstreamer/gst-libs/gst/vaapi/gstvaapiwindow.c
2020-07-27 15:02:19 +00:00

677 lines
18 KiB
C

/*
* gstvaapiwindow.c - VA window abstraction
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
* Copyright (C) 2011-2013 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* SECTION:gstvaapiwindow
* @short_description: VA window abstraction
*/
#include "sysdeps.h"
#include "gstvaapiwindow.h"
#include "gstvaapiwindow_priv.h"
#include "gstvaapidisplay_priv.h"
#include "gstvaapisurface_priv.h"
GST_DEBUG_CATEGORY (gst_debug_vaapi_window);
#define GST_CAT_DEFAULT gst_debug_vaapi_window
#define _do_init \
GST_DEBUG_CATEGORY_INIT (gst_debug_vaapi_window, "vaapiwindow", 0, \
"VA-API Window");
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstVaapiWindow, gst_vaapi_window,
GST_TYPE_OBJECT, _do_init);
enum
{
PROP_DISPLAY = 1,
N_PROPERTIES
};
static GParamSpec *g_properties[N_PROPERTIES] = { NULL, };
static void
gst_vaapi_window_ensure_size (GstVaapiWindow * window)
{
const GstVaapiWindowClass *const klass = GST_VAAPI_WINDOW_GET_CLASS (window);
if (!window->check_geometry)
return;
if (klass->get_geometry)
klass->get_geometry (window, NULL, NULL, &window->width, &window->height);
window->check_geometry = FALSE;
window->is_fullscreen = (window->width == window->display_width &&
window->height == window->display_height);
}
static gboolean
ensure_filter (GstVaapiWindow * window)
{
GstVaapiDisplay *const display = GST_VAAPI_WINDOW_DISPLAY (window);
/* Ensure VPP pipeline is built */
if (window->filter)
return TRUE;
window->filter = gst_vaapi_filter_new (display);
if (!window->filter)
goto error_create_filter;
if (!gst_vaapi_filter_set_format (window->filter, GST_VIDEO_FORMAT_NV12))
goto error_unsupported_format;
return TRUE;
error_create_filter:
{
GST_WARNING ("failed to create VPP filter. Disabling");
window->has_vpp = FALSE;
return FALSE;
}
error_unsupported_format:
{
GST_ERROR ("unsupported render target format %s",
gst_vaapi_video_format_to_string (GST_VIDEO_FORMAT_NV12));
window->has_vpp = FALSE;
return FALSE;
}
}
void
gst_vaapi_window_set_vpp_format_internal (GstVaapiWindow * window,
GstVideoFormat format, guint flags)
{
if (window->surface_pool_format == format &&
window->surface_pool_flags == flags)
return;
gst_vaapi_video_pool_replace (&window->surface_pool, NULL);
window->surface_pool_format = format;
window->surface_pool_flags = flags;
}
static gboolean
ensure_filter_surface_pool (GstVaapiWindow * window)
{
GstVaapiDisplay *const display = GST_VAAPI_WINDOW_DISPLAY (window);
if (window->surface_pool)
goto ensure_filter;
/* Ensure VA surface pool is created */
/* XXX: optimize the surface format to use. e.g. YUY2 */
window->surface_pool = gst_vaapi_surface_pool_new (display,
window->surface_pool_format, window->width, window->height,
window->surface_pool_flags);
if (!window->surface_pool) {
GST_WARNING ("failed to create surface pool for conversion");
return FALSE;
}
gst_vaapi_filter_replace (&window->filter, NULL);
ensure_filter:
return ensure_filter (window);
}
static gboolean
gst_vaapi_window_create (GstVaapiWindow * window, guint width, guint height)
{
gst_vaapi_display_get_size (GST_VAAPI_WINDOW_DISPLAY (window),
&window->display_width, &window->display_height);
if (!GST_VAAPI_WINDOW_GET_CLASS (window)->create (window, &width, &height))
return FALSE;
if (width != window->width || height != window->height) {
GST_DEBUG ("backend resized window to %ux%u", width, height);
window->width = width;
window->height = height;
}
return TRUE;
}
static void
gst_vaapi_window_finalize (GObject * object)
{
GstVaapiWindow *const window = GST_VAAPI_WINDOW (object);
gst_vaapi_video_pool_replace (&window->surface_pool, NULL);
gst_vaapi_filter_replace (&window->filter, NULL);
gst_vaapi_display_replace (&window->display, NULL);
G_OBJECT_CLASS (gst_vaapi_window_parent_class)->finalize (object);
}
static void
gst_vaapi_window_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstVaapiWindow *const window = GST_VAAPI_WINDOW (object);
switch (property_id) {
case PROP_DISPLAY:
g_assert (window->display == NULL);
window->display = g_value_dup_object (value);
g_assert (window->display != NULL);
window->has_vpp = GST_VAAPI_DISPLAY_HAS_VPP (window->display);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gst_vaapi_window_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstVaapiWindow *const window = GST_VAAPI_WINDOW (object);
switch (property_id) {
case PROP_DISPLAY:
g_value_set_object (value, window->display);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gst_vaapi_window_class_init (GstVaapiWindowClass * klass)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
object_class->set_property = gst_vaapi_window_set_property;
object_class->get_property = gst_vaapi_window_get_property;
object_class->finalize = gst_vaapi_window_finalize;
/**
* GstVaapiWindow:display:
*
* #GstVaapiDisplay to be used.
*/
g_properties[PROP_DISPLAY] =
g_param_spec_object ("display", "Gst VA-API Display",
"The VA-API display object to use", GST_TYPE_VAAPI_DISPLAY,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_NAME);
g_object_class_install_properties (object_class, N_PROPERTIES, g_properties);
}
static void
gst_vaapi_window_init (GstVaapiWindow * window)
{
}
GstVaapiWindow *
gst_vaapi_window_new_internal (GType type, GstVaapiDisplay * display,
GstVaapiID id, guint width, guint height)
{
GstVaapiWindow *window;
if (id != GST_VAAPI_ID_INVALID) {
g_return_val_if_fail (width == 0, NULL);
g_return_val_if_fail (height == 0, NULL);
} else {
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
}
window = g_object_new (type, "display", display, NULL);
if (!window)
return NULL;
window->surface_pool_format = GST_VIDEO_FORMAT_NV12;
window->use_foreign_window = id != GST_VAAPI_ID_INVALID;
GST_VAAPI_WINDOW_ID (window) = window->use_foreign_window ? id : 0;
GST_DEBUG_OBJECT (window, "new window with id = 0x%08" G_GSIZE_MODIFIER
"x and size %ux%u", id, width, height);
if (!gst_vaapi_window_create (window, width, height))
goto error;
return window;
/* ERRORS */
error:
{
gst_object_unref (window);
return NULL;
}
}
GstVaapiSurface *
gst_vaapi_window_vpp_convert_internal (GstVaapiWindow * window,
GstVaapiSurface * surface, const GstVaapiRectangle * src_rect,
const GstVaapiRectangle * dst_rect, guint flags)
{
GstVaapiSurface *vpp_surface = NULL;
GstVaapiFilterStatus status;
if (!window->has_vpp)
return NULL;
if (!ensure_filter_surface_pool (window))
return NULL;
if (src_rect)
if (!gst_vaapi_filter_set_cropping_rectangle (window->filter, src_rect))
return NULL;
if (dst_rect)
if (!gst_vaapi_filter_set_target_rectangle (window->filter, dst_rect))
return NULL;
/* Post-process the decoded source surface */
vpp_surface = gst_vaapi_video_pool_get_object (window->surface_pool);
if (!vpp_surface)
return NULL;
status =
gst_vaapi_filter_process (window->filter, surface, vpp_surface, flags);
if (status != GST_VAAPI_FILTER_STATUS_SUCCESS)
goto error_process_filter;
return vpp_surface;
/* ERRORS */
error_process_filter:
{
GST_ERROR ("failed to process surface %" GST_VAAPI_ID_FORMAT " (error %d)",
GST_VAAPI_ID_ARGS (GST_VAAPI_SURFACE_ID (surface)), status);
gst_vaapi_video_pool_put_object (window->surface_pool, vpp_surface);
return NULL;
}
}
/**
* gst_vaapi_window_new:
* @display: a #GstVaapiDisplay
* @width: the requested window width, in pixels
* @height: the requested windo height, in pixels
*
* Creates a window with the specified @width and @height. The window
* will be attached to the @display and remains invisible to the user
* until gst_vaapi_window_show() is called.
*
* Return value: the newly allocated #GstVaapiWindow object
*/
GstVaapiWindow *
gst_vaapi_window_new (GstVaapiDisplay * display, guint width, guint height)
{
GstVaapiDisplayClass *dpy_class;
g_return_val_if_fail (GST_VAAPI_IS_DISPLAY (display), NULL);
dpy_class = GST_VAAPI_DISPLAY_GET_CLASS (display);
if (G_UNLIKELY (!dpy_class->create_window))
return NULL;
return dpy_class->create_window (display, GST_VAAPI_ID_INVALID, width,
height);
}
/**
* gst_vaapi_window_replace:
* @old_window_ptr: a pointer to a #GstVaapiWindow
* @new_window: a #GstVaapiWindow
*
* Atomically replaces the window window held in @old_window_ptr with
* @new_window. This means that @old_window_ptr shall reference a
* valid window. However, @new_window can be NULL.
*/
void
gst_vaapi_window_replace (GstVaapiWindow ** old_window_ptr,
GstVaapiWindow * new_window)
{
gst_object_replace ((GstObject **) old_window_ptr, GST_OBJECT (new_window));
}
/**
* gst_vaapi_window_get_display:
* @window: a #GstVaapiWindow
*
* Returns the #GstVaapiDisplay this @window is bound to.
*
* Return value: the parent #GstVaapiDisplay object
*/
GstVaapiDisplay *
gst_vaapi_window_get_display (GstVaapiWindow * window)
{
g_return_val_if_fail (GST_VAAPI_IS_WINDOW (window), NULL);
return GST_VAAPI_WINDOW_DISPLAY (window);
}
/**
* gst_vaapi_window_show:
* @window: a #GstVaapiWindow
*
* Flags a window to be displayed. Any window that is not shown will
* not appear on the screen.
*/
void
gst_vaapi_window_show (GstVaapiWindow * window)
{
g_return_if_fail (GST_VAAPI_IS_WINDOW (window));
GST_VAAPI_WINDOW_GET_CLASS (window)->show (window);
window->check_geometry = TRUE;
}
/**
* gst_vaapi_window_hide:
* @window: a #GstVaapiWindow
*
* Reverses the effects of gst_vaapi_window_show(), causing the window
* to be hidden (invisible to the user).
*/
void
gst_vaapi_window_hide (GstVaapiWindow * window)
{
g_return_if_fail (GST_VAAPI_IS_WINDOW (window));
GST_VAAPI_WINDOW_GET_CLASS (window)->hide (window);
}
/**
* gst_vaapi_window_get_fullscreen:
* @window: a #GstVaapiWindow
*
* Retrieves whether the @window is fullscreen or not
*
* Return value: %TRUE if the window is fullscreen
*/
gboolean
gst_vaapi_window_get_fullscreen (GstVaapiWindow * window)
{
g_return_val_if_fail (GST_VAAPI_IS_WINDOW (window), FALSE);
gst_vaapi_window_ensure_size (window);
return window->is_fullscreen;
}
/**
* gst_vaapi_window_set_fullscreen:
* @window: a #GstVaapiWindow
* @fullscreen: %TRUE to request window to get fullscreen
*
* Requests to place the @window in fullscreen or unfullscreen states.
*/
void
gst_vaapi_window_set_fullscreen (GstVaapiWindow * window, gboolean fullscreen)
{
const GstVaapiWindowClass *klass;
g_return_if_fail (GST_VAAPI_IS_WINDOW (window));
klass = GST_VAAPI_WINDOW_GET_CLASS (window);
if (window->is_fullscreen != fullscreen &&
klass->set_fullscreen && klass->set_fullscreen (window, fullscreen)) {
window->is_fullscreen = fullscreen;
window->check_geometry = TRUE;
}
}
/**
* gst_vaapi_window_get_width:
* @window: a #GstVaapiWindow
*
* Retrieves the width of a #GstVaapiWindow.
*
* Return value: the width of the @window, in pixels
*/
guint
gst_vaapi_window_get_width (GstVaapiWindow * window)
{
g_return_val_if_fail (GST_VAAPI_IS_WINDOW (window), 0);
gst_vaapi_window_ensure_size (window);
return window->width;
}
/**
* gst_vaapi_window_get_height:
* @window: a #GstVaapiWindow
*
* Retrieves the height of a #GstVaapiWindow
*
* Return value: the height of the @window, in pixels
*/
guint
gst_vaapi_window_get_height (GstVaapiWindow * window)
{
g_return_val_if_fail (GST_VAAPI_IS_WINDOW (window), 0);
gst_vaapi_window_ensure_size (window);
return window->height;
}
/**
* gst_vaapi_window_get_size:
* @window: a #GstVaapiWindow
* @width_ptr: return location for the width, or %NULL
* @height_ptr: return location for the height, or %NULL
*
* Retrieves the dimensions of a #GstVaapiWindow.
*/
void
gst_vaapi_window_get_size (GstVaapiWindow * window, guint * width_ptr,
guint * height_ptr)
{
g_return_if_fail (GST_VAAPI_IS_WINDOW (window));
gst_vaapi_window_ensure_size (window);
if (width_ptr)
*width_ptr = window->width;
if (height_ptr)
*height_ptr = window->height;
}
/**
* gst_vaapi_window_set_width:
* @window: a #GstVaapiWindow
* @width: requested new width for the window, in pixels
*
* Resizes the @window to match the specified @width.
*/
void
gst_vaapi_window_set_width (GstVaapiWindow * window, guint width)
{
g_return_if_fail (GST_VAAPI_IS_WINDOW (window));
gst_vaapi_window_set_size (window, width, window->height);
}
/**
* gst_vaapi_window_set_height:
* @window: a #GstVaapiWindow
* @height: requested new height for the window, in pixels
*
* Resizes the @window to match the specified @height.
*/
void
gst_vaapi_window_set_height (GstVaapiWindow * window, guint height)
{
g_return_if_fail (GST_VAAPI_IS_WINDOW (window));
gst_vaapi_window_set_size (window, window->width, height);
}
/**
* gst_vaapi_window_set_size:
* @window: a #GstVaapiWindow
* @width: requested new width for the window, in pixels
* @height: requested new height for the window, in pixels
*
* Resizes the @window to match the specified @width and @height.
*/
void
gst_vaapi_window_set_size (GstVaapiWindow * window, guint width, guint height)
{
g_return_if_fail (GST_VAAPI_IS_WINDOW (window));
if (width == window->width && height == window->height)
return;
if (!GST_VAAPI_WINDOW_GET_CLASS (window)->resize (window, width, height))
return;
gst_vaapi_video_pool_replace (&window->surface_pool, NULL);
window->width = width;
window->height = height;
}
static inline void
get_surface_rect (GstVaapiSurface * surface, GstVaapiRectangle * rect)
{
rect->x = 0;
rect->y = 0;
rect->width = GST_VAAPI_SURFACE_WIDTH (surface);
rect->height = GST_VAAPI_SURFACE_HEIGHT (surface);
}
static inline void
get_window_rect (GstVaapiWindow * window, GstVaapiRectangle * rect)
{
guint width, height;
gst_vaapi_window_get_size (window, &width, &height);
rect->x = 0;
rect->y = 0;
rect->width = width;
rect->height = height;
}
/**
* gst_vaapi_window_put_surface:
* @window: a #GstVaapiWindow
* @surface: a #GstVaapiSurface
* @src_rect: the sub-rectangle of the source surface to
* extract and process. If %NULL, the entire surface will be used.
* @dst_rect: the sub-rectangle of the destination
* window into which the surface is rendered. If %NULL, the entire
* window will be used.
* @flags: postprocessing flags. See #GstVaapiSurfaceRenderFlags
*
* Renders the @surface region specified by @src_rect into the @window
* region specified by @dst_rect. The @flags specify how de-interlacing
* (if needed), color space conversion, scaling and other postprocessing
* transformations are performed.
*
* Return value: %TRUE on success
*/
gboolean
gst_vaapi_window_put_surface (GstVaapiWindow * window,
GstVaapiSurface * surface,
const GstVaapiRectangle * src_rect,
const GstVaapiRectangle * dst_rect, guint flags)
{
const GstVaapiWindowClass *klass;
GstVaapiRectangle src_rect_default, dst_rect_default;
g_return_val_if_fail (GST_VAAPI_IS_WINDOW (window), FALSE);
g_return_val_if_fail (surface != NULL, FALSE);
klass = GST_VAAPI_WINDOW_GET_CLASS (window);
if (!klass->render)
return FALSE;
if (!src_rect) {
src_rect = &src_rect_default;
get_surface_rect (surface, &src_rect_default);
}
if (!dst_rect) {
dst_rect = &dst_rect_default;
get_window_rect (window, &dst_rect_default);
}
return klass->render (window, surface, src_rect, dst_rect, flags);
}
/**
* gst_vaapi_window_reconfigure:
* @window: a #GstVaapiWindow
*
* Updates internal window size from geometry of the underlying window
* implementation if necessary.
*/
void
gst_vaapi_window_reconfigure (GstVaapiWindow * window)
{
g_return_if_fail (GST_VAAPI_IS_WINDOW (window));
window->check_geometry = TRUE;
gst_vaapi_window_ensure_size (window);
}
/**
* gst_vaapi_window_unblock:
* @window: a #GstVaapiWindow
*
* Unblocks a rendering surface operation.
*/
gboolean
gst_vaapi_window_unblock (GstVaapiWindow * window)
{
const GstVaapiWindowClass *klass;
g_return_val_if_fail (GST_VAAPI_IS_WINDOW (window), FALSE);
klass = GST_VAAPI_WINDOW_GET_CLASS (window);
if (klass->unblock)
return klass->unblock (window);
return TRUE;
}
/**
* gst_vaapi_window_unblock_cancel:
* @window: a #GstVaapiWindow
*
* Cancels the previous unblock request.
*/
gboolean
gst_vaapi_window_unblock_cancel (GstVaapiWindow * window)
{
const GstVaapiWindowClass *klass;
g_return_val_if_fail (GST_VAAPI_IS_WINDOW (window), FALSE);
klass = GST_VAAPI_WINDOW_GET_CLASS (window);
if (klass->unblock_cancel)
return klass->unblock_cancel (window);
return TRUE;
}