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/*
* gstvaapivideoconverter_x11.h - VA video converter to X11 pixmap
*
* Copyright (C) 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
*/
#include "gstcompat.h"
#include <gst/vaapi/gstvaapipixmap_x11.h>
#include "gstvaapivideoconverter_x11.h"
#include "gstvaapipluginutil.h"
#include "gstvaapivideometa.h"
typedef gboolean (*GstSurfaceUploadFunction) (GstSurfaceConverter *,
GstSurfaceBuffer *);
static void
gst_vaapi_video_converter_x11_iface_init (GstSurfaceConverterInterface * iface);
G_DEFINE_TYPE_WITH_CODE (GstVaapiVideoConverterX11,
gst_vaapi_video_converter_x11,
G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GST_TYPE_SURFACE_CONVERTER,
gst_vaapi_video_converter_x11_iface_init));
#define GST_VAAPI_VIDEO_CONVERTER_X11_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_VAAPI_TYPE_VIDEO_CONVERTER_X11, \
GstVaapiVideoConverterX11Private))
struct _GstVaapiVideoConverterX11Private
{
GstVaapiPixmap *pixmap;
XID pixmap_id;
};
static gboolean
gst_vaapi_video_converter_x11_upload (GstSurfaceConverter * self,
GstBuffer * buffer);
static void
gst_vaapi_video_converter_x11_dispose (GObject * object)
{
GstVaapiVideoConverterX11Private *const priv =
GST_VAAPI_VIDEO_CONVERTER_X11 (object)->priv;
gst_vaapi_pixmap_replace (&priv->pixmap, NULL);
G_OBJECT_CLASS (gst_vaapi_video_converter_x11_parent_class)->dispose (object);
}
static void
gst_vaapi_video_converter_x11_class_init (GstVaapiVideoConverterX11Class *
klass)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GstVaapiVideoConverterX11Private));
object_class->dispose = gst_vaapi_video_converter_x11_dispose;
}
static void
gst_vaapi_video_converter_x11_init (GstVaapiVideoConverterX11 * buffer)
{
buffer->priv = GST_VAAPI_VIDEO_CONVERTER_X11_GET_PRIVATE (buffer);
}
static void
gst_vaapi_video_converter_x11_iface_init (GstSurfaceConverterInterface * iface)
{
iface->upload = (GstSurfaceUploadFunction)
gst_vaapi_video_converter_x11_upload;
}
static gboolean
set_pixmap (GstVaapiVideoConverterX11 * converter, GstVaapiDisplay * display,
XID pixmap_id)
{
GstVaapiVideoConverterX11Private *const priv = converter->priv;
GstVaapiPixmap *pixmap;
pixmap = gst_vaapi_pixmap_x11_new_with_xid (display, pixmap_id);
if (!pixmap)
return FALSE;
gst_vaapi_pixmap_replace (&priv->pixmap, pixmap);
gst_vaapi_pixmap_unref (pixmap);
priv->pixmap_id = pixmap_id;
return TRUE;
}
/**
* gst_vaapi_video_converter_x11_new:
* @surface: the #GstSurfaceBuffer
* @type: type of the target buffer (must be "x11-pixmap")
* @dest: target of the conversion (must be an X11 pixmap id)
*
* Creates an empty #GstBuffer. The caller is responsible for
* completing the initialization of the buffer with the
* gst_vaapi_video_converter_x11_set_*() functions.
*
* Return value: the newly allocated #GstBuffer, or %NULL on error
*/
GstSurfaceConverter *
gst_vaapi_video_converter_x11_new (GstBuffer * buffer, const gchar * type,
GValue * dest)
{
GstVaapiVideoMeta *const meta = gst_buffer_get_vaapi_video_meta (buffer);
GstVaapiVideoConverterX11 *converter;
/* We only support X11 pixmap conversion */
if (strcmp (type, "x11-pixmap") != 0 || !G_VALUE_HOLDS_UINT (dest))
return NULL;
converter = g_object_new (GST_VAAPI_TYPE_VIDEO_CONVERTER_X11, NULL);
if (!converter)
return NULL;
if (!set_pixmap (converter, gst_vaapi_video_meta_get_display (meta),
g_value_get_uint (dest)))
goto error;
return GST_SURFACE_CONVERTER (converter);
error:
g_object_unref (converter);
return NULL;
}
gboolean
gst_vaapi_video_converter_x11_upload (GstSurfaceConverter * self,
GstBuffer * buffer)
{
GstVaapiVideoConverterX11 *const converter =
GST_VAAPI_VIDEO_CONVERTER_X11 (self);
GstVaapiVideoConverterX11Private *const priv = converter->priv;
GstVaapiVideoMeta *const meta = gst_buffer_get_vaapi_video_meta (buffer);
const GstVaapiRectangle *crop_rect = NULL;
GstVaapiSurface *surface;
GstVaapiDisplay *old_display, *new_display;
g_return_val_if_fail (meta != NULL, FALSE);
surface = gst_vaapi_video_meta_get_surface (meta);
if (!surface)
return FALSE;
old_display = gst_vaapi_object_get_display (GST_VAAPI_OBJECT (priv->pixmap));
new_display = gst_vaapi_object_get_display (GST_VAAPI_OBJECT (surface));
if (old_display != new_display) {
if (!set_pixmap (converter, new_display, priv->pixmap_id))
return FALSE;
}
if (!gst_vaapi_apply_composition (surface, buffer))
GST_WARNING ("could not update subtitles");
GstVideoCropMeta *const crop_meta = gst_buffer_get_video_crop_meta (buffer);
if (crop_meta) {
GstVaapiRectangle crop_rect_tmp;
crop_rect = &crop_rect_tmp;
crop_rect_tmp.x = crop_meta->x;
crop_rect_tmp.y = crop_meta->y;
crop_rect_tmp.width = crop_meta->width;
crop_rect_tmp.height = crop_meta->height;
}
if (!crop_rect)
crop_rect = gst_vaapi_video_meta_get_render_rect (meta);
return gst_vaapi_pixmap_put_surface (priv->pixmap, surface, crop_rect,
gst_vaapi_video_meta_get_render_flags (meta));
}
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