mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-19 10:30:30 +00:00
6f2dfb71e6
Move common VA display creation code to GstVaapiPluginBase, with the default display type remaining "any". Also add a "display-changed" hook so that subclasses could perform additional tasks when/if the VA display changed, due to a new display type request for instance. All plug-ins are updated to cope with the new internal APIs.
136 lines
3.9 KiB
C
136 lines
3.9 KiB
C
/*
|
|
* gstvaapipluginbase.c - Base GStreamer VA-API Plugin element
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include "gst/vaapi/sysdeps.h"
|
|
#include "gstvaapipluginbase.h"
|
|
#include "gstvaapipluginutil.h"
|
|
|
|
/* Default debug category is from the subclass */
|
|
#define GST_CAT_DEFAULT (plugin->debug_category)
|
|
|
|
static void
|
|
default_display_changed (GstVaapiPluginBase * plugin)
|
|
{
|
|
}
|
|
|
|
void
|
|
gst_vaapi_plugin_base_class_init (GstVaapiPluginBaseClass * klass)
|
|
{
|
|
klass->display_changed = default_display_changed;
|
|
}
|
|
|
|
void
|
|
gst_vaapi_plugin_base_init (GstVaapiPluginBase * plugin,
|
|
GstDebugCategory * debug_category)
|
|
{
|
|
plugin->debug_category = debug_category;
|
|
|
|
plugin->display_type = GST_VAAPI_DISPLAY_TYPE_ANY;
|
|
plugin->display_type_req = GST_VAAPI_DISPLAY_TYPE_ANY;
|
|
}
|
|
|
|
void
|
|
gst_vaapi_plugin_base_finalize (GstVaapiPluginBase * plugin)
|
|
{
|
|
gst_vaapi_plugin_base_close (plugin);
|
|
|
|
gst_debug_category_free (plugin->debug_category);
|
|
}
|
|
|
|
/**
|
|
* gst_vaapi_plugin_base_open:
|
|
* @plugin: a #GstVaapiPluginBase
|
|
*
|
|
* Allocates any internal resources needed for correct operation from
|
|
* the subclass.
|
|
*
|
|
* Returns: %TRUE if successful, %FALSE otherwise.
|
|
*/
|
|
gboolean
|
|
gst_vaapi_plugin_base_open (GstVaapiPluginBase * plugin)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_vaapi_plugin_base_close:
|
|
* @plugin: a #GstVaapiPluginBase
|
|
*
|
|
* Deallocates all internal resources that were allocated so
|
|
* far. i.e. put the base plugin object into a clean state.
|
|
*/
|
|
void
|
|
gst_vaapi_plugin_base_close (GstVaapiPluginBase * plugin)
|
|
{
|
|
gst_vaapi_display_replace (&plugin->display, NULL);
|
|
}
|
|
|
|
/**
|
|
* gst_vaapi_plugin_base_set_display_type:
|
|
* @plugin: a #GstVaapiPluginBase
|
|
* @display_type: the new request #GstVaapiDisplayType
|
|
*
|
|
* Requests a new display type. The change is effective at the next
|
|
* call to gst_vaapi_plugin_base_ensure_display().
|
|
*/
|
|
void
|
|
gst_vaapi_plugin_base_set_display_type (GstVaapiPluginBase * plugin,
|
|
GstVaapiDisplayType display_type)
|
|
{
|
|
plugin->display_type_req = display_type;
|
|
}
|
|
|
|
/* Checks wether display type 1 is compatible with display type 2 */
|
|
static gboolean
|
|
display_type_is_compatible (GstVaapiDisplayType type1,
|
|
GstVaapiDisplayType type2)
|
|
{
|
|
return (type1 == type2 || type2 == GST_VAAPI_DISPLAY_TYPE_ANY);
|
|
}
|
|
|
|
/**
|
|
* gst_vaapi_plugin_base_ensure_display:
|
|
* @plugin: a #GstVaapiPluginBase
|
|
*
|
|
* Ensures the display stored in @plugin complies with the requested
|
|
* display type constraints.
|
|
*
|
|
* Returns: %TRUE if the display was created to match the requested
|
|
* type, %FALSE otherwise.
|
|
*/
|
|
gboolean
|
|
gst_vaapi_plugin_base_ensure_display (GstVaapiPluginBase * plugin)
|
|
{
|
|
if (plugin->display && display_type_is_compatible (plugin->display_type,
|
|
plugin->display_type_req))
|
|
return TRUE;
|
|
gst_vaapi_display_replace (&plugin->display, NULL);
|
|
|
|
if (!gst_vaapi_ensure_display (plugin, plugin->display_type_req))
|
|
return FALSE;
|
|
plugin->display_type = gst_vaapi_display_get_display_type (plugin->display);
|
|
|
|
GST_VAAPI_PLUGIN_BASE_GET_CLASS (plugin)->display_changed (plugin);
|
|
return TRUE;
|
|
}
|