gstreamer/gst-libs/gst/vaapi/gstvaapivalue.c

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/*
* gstvaapivalue.c - GValue implementations specific to VA-API
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*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
2014-01-22 17:54:14 +00:00
* Copyright (C) 2012-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
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* 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.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
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*
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* 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
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*/
/**
* SECTION:gstvaapivalue
* @short_description: GValue implementations specific to VA-API
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*/
#include "sysdeps.h"
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#include <gobject/gvaluecollector.h>
#include "gstvaapivalue.h"
static gpointer
default_copy_func(gpointer data)
{
return data;
}
static void
default_free_func(gpointer data)
{
}
/* --- GstVaapiPoint --- */
GType
gst_vaapi_point_get_type(void)
{
static volatile gsize g_type = 0;
if (g_once_init_enter(&g_type)) {
GType type = g_boxed_type_register_static(
g_intern_static_string("GstVaapiPoint"),
default_copy_func, default_free_func);
g_once_init_leave(&g_type, type);
}
return g_type;
}
/* --- GstVaapiRectangle --- */
GType
gst_vaapi_rectangle_get_type(void)
{
static volatile gsize g_type = 0;
if (g_once_init_enter(&g_type)) {
GType type = g_boxed_type_register_static(
g_intern_static_string("GstVaapiRectangle"),
default_copy_func, default_free_func);
g_once_init_leave(&g_type, type);
}
return g_type;
}
/* --- GstVaapiRenderMode --- */
GType
gst_vaapi_render_mode_get_type(void)
{
static GType render_mode_type = 0;
static const GEnumValue render_modes[] = {
{ GST_VAAPI_RENDER_MODE_OVERLAY,
"Overlay render mode", "overlay" },
{ GST_VAAPI_RENDER_MODE_TEXTURE,
"Textured-blit render mode", "texture" },
{ 0, NULL, NULL }
};
if (!render_mode_type) {
render_mode_type =
g_enum_register_static("GstVaapiRenderMode", render_modes);
}
return render_mode_type;
}
/* --- GstVaapiRotation --- */
GType
gst_vaapi_rotation_get_type(void)
{
static GType g_type = 0;
static const GEnumValue rotation_values[] = {
{ GST_VAAPI_ROTATION_0,
"Unrotated mode", "0" },
{ GST_VAAPI_ROTATION_90,
"Rotated by 90°, clockwise", "90" },
{ GST_VAAPI_ROTATION_180,
"Rotated by 180°, clockwise", "180" },
{ GST_VAAPI_ROTATION_270,
"Rotated by 270°, clockwise", "270" },
{ 0, NULL, NULL },
};
if (!g_type)
g_type = g_enum_register_static("GstVaapiRotation", rotation_values);
return g_type;
}
/* --- GstVaapiRateControl --- */
GType
gst_vaapi_rate_control_get_type(void)
{
static volatile gsize g_type = 0;
static const GEnumValue rate_control_values[] = {
{ GST_VAAPI_RATECONTROL_NONE,
"None", "none" },
{ GST_VAAPI_RATECONTROL_CQP,
"Constant QP", "cqp" },
{ GST_VAAPI_RATECONTROL_CBR,
"Constant bitrate", "cbr" },
{ GST_VAAPI_RATECONTROL_VCM,
"Video conference", "vcm" },
{ GST_VAAPI_RATECONTROL_VBR,
"Variable bitrate", "vbr" },
{ GST_VAAPI_RATECONTROL_VBR_CONSTRAINED,
"Variable bitrate - Constrained", "vbr_constrained" },
{ 0, NULL, NULL },
};
if (g_once_init_enter(&g_type)) {
GType type = g_enum_register_static("GstVaapiRateControl",
rate_control_values);
g_once_init_leave(&g_type, type);
}
return g_type;
}
static gboolean
build_enum_subset_values_from_mask (GstVaapiEnumSubset *subset, guint32 mask)
{
GEnumClass *enum_class;
const GEnumValue *value;
guint i, n;
enum_class = g_type_class_ref(subset->parent_type);
if (!enum_class)
return FALSE;
for (i = 0, n = 0; i < 32 && n < subset->num_values; i++) {
if (!(mask & (1U << i)))
continue;
value = g_enum_get_value(enum_class, i);
if (!value)
continue;
subset->values[n++] = *value;
}
g_type_class_unref(enum_class);
if (n != subset->num_values - 1)
goto error_invalid_num_values;
return TRUE;
/* ERRORS */
error_invalid_num_values:
{
g_error("invalid number of static values for `%s'", subset->type_name);
return FALSE;
}
}
GType
gst_vaapi_type_define_enum_subset_from_mask(GstVaapiEnumSubset *subset,
guint32 mask)
{
if (g_once_init_enter(&subset->type)) {
GType type;
build_enum_subset_values_from_mask(subset, mask);
memset(&subset->type_info, 0, sizeof(subset->type_info));
g_enum_complete_type_info(subset->parent_type, &subset->type_info,
subset->values);
type = g_type_register_static (G_TYPE_ENUM, subset->type_name,
&subset->type_info, 0);
g_once_init_leave(&subset->type, type);
}
return subset->type;
}