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c06b587819
If the video direction is unsupported by the driver, an element warning is posted in the bus to notify the application. gst_vaapi_enum_type_get_nick() was added in the library thus it can be used elsewhere. It retrives the nick from an enum gtype.
166 lines
5.1 KiB
C
166 lines
5.1 KiB
C
/*
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* gstvaapivalue.h - GValue implementations specific to VA-API
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
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* Copyright (C) 2012-2014 Intel Corporation
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* 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
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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
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* 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
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef GST_VAAPI_VALUE_H
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#define GST_VAAPI_VALUE_H
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#include <glib-object.h>
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#include <gst/vaapi/gstvaapitypes.h>
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G_BEGIN_DECLS
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/**
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* GST_VAAPI_TYPE_POINT:
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*
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* A #GstVaapiPoint type that represents a 2D point coordinates.
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*
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* Return value: the GType of #GstVaapiPoint
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*/
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#define GST_VAAPI_TYPE_POINT gst_vaapi_point_get_type()
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/**
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* GST_VAAPI_TYPE_RECTANGLE:
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*
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* A #GstVaapiRectangle type that represents a 2D rectangle position
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* and size.
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*
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* Return value: the GType of #GstVaapiRectangle
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*/
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#define GST_VAAPI_TYPE_RECTANGLE gst_vaapi_rectangle_get_type()
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/**
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* GST_VAAPI_TYPE_RENDER_MODE:
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*
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* A #GstVaapiRenderMode type that represents the VA display backend
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* rendering mode: overlay (2D engine) or textured-blit (3D engine).
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*
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* Return value: the #GType of GstVaapiRenderMode
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*/
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#define GST_VAAPI_TYPE_RENDER_MODE gst_vaapi_render_mode_get_type()
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/**
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* GST_VAAPI_TYPE_ROTATION:
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*
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* A type that represents the VA display rotation.
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*
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* Return value: the #GType of GstVaapiRotation
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*/
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#define GST_VAAPI_TYPE_ROTATION gst_vaapi_rotation_get_type()
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/**
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* GST_VAAPI_TYPE_RATE_CONTROL:
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*
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* A type that represents the VA rate control.
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*
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* Return value: the #GType of GstVaapiRateControl
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*/
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#define GST_VAAPI_TYPE_RATE_CONTROL gst_vaapi_rate_control_get_type()
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GType
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gst_vaapi_point_get_type(void) G_GNUC_CONST;
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GType
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gst_vaapi_rectangle_get_type(void) G_GNUC_CONST;
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GType
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gst_vaapi_render_mode_get_type(void) G_GNUC_CONST;
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GType
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gst_vaapi_rotation_get_type(void) G_GNUC_CONST;
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GType
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gst_vaapi_rate_control_get_type(void) G_GNUC_CONST;
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/**
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* GST_VAAPI_POPCOUNT32:
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* @x: the value from which to compute population count
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*
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* Computes the number of bits set in the supplied 32-bit value @x.
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*
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* Return value: the number of bits set in @x
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*/
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#define GST_VAAPI_POPCOUNT32(x) \
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GST_VAAPI_POPCOUNT32_0(x)
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#define GST_VAAPI_POPCOUNT32_0(x) \
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GST_VAAPI_POPCOUNT32_1((x) - (((x) >> 1) & 0x55555555))
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#define GST_VAAPI_POPCOUNT32_1(x) \
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GST_VAAPI_POPCOUNT32_2(((x) & 0x33333333) + (((x) >> 2) & 0x33333333))
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#define GST_VAAPI_POPCOUNT32_2(x) \
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GST_VAAPI_POPCOUNT32_3((x) + ((x) >> 4))
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#define GST_VAAPI_POPCOUNT32_3(x) \
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GST_VAAPI_POPCOUNT32_4((x) & 0x0f0f0f0f)
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#define GST_VAAPI_POPCOUNT32_4(x) \
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(((x) * 0x01010101) >> 24)
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/* --- GstVaapiEnumSubset --- */
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/**
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* GstVaapiEnumSubset:
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* @name: name of the enum subset
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* @parent_type: parent enum type
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* @type: registered #GType
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* @type_info: #GTypeInfo used to build the @type
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* @values: pointer to a static array of #GEnumValue elements
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* @num_values: number of elements in the @values array, including the
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* terminator
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*
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* Structure that holds the required information to build a GEnum
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* subset from the supplied @parent_type, i.e. a subset of its values.
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*/
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typedef struct {
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GType parent_type;
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GType type;
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GTypeInfo type_info;
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const gchar *type_name;
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GEnumValue *values;
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guint num_values;
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} GstVaapiEnumSubset;
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G_GNUC_INTERNAL
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GType
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gst_vaapi_type_define_enum_subset_from_mask(GstVaapiEnumSubset *subset,
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guint32 mask);
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#define GST_VAAPI_TYPE_DEFINE_ENUM_SUBSET_FROM_MASK(NAME, name, TYPE, MASK) \
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static GType \
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G_PASTE(name,_get_type)(void) \
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{ \
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static GEnumValue enum_values[GST_VAAPI_POPCOUNT32(MASK) + 1]; \
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static GstVaapiEnumSubset subset = { \
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.type_name = G_STRINGIFY(NAME), \
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.values = enum_values, \
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.num_values = G_N_ELEMENTS(enum_values), \
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}; \
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if (g_once_init_enter(&subset.parent_type)) \
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g_once_init_leave(&subset.parent_type, TYPE); \
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return gst_vaapi_type_define_enum_subset_from_mask(&subset, MASK); \
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}
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G_GNUC_INTERNAL
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const gchar *
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gst_vaapi_enum_type_get_nick (GType type, gint value);
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G_END_DECLS
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#endif /* GST_VAAPI_VALUE_H */
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