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gstreamer/gst-libs/gst/vaapi/gstvaapisurface_priv.h

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surface: record parent context.
2011-12-13 15:53:15 +00:00
/*
* gstvaapisurface_priv.h - VA surface abstraction (private data)
*
legal: update copyright notice dates.
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* Copyright (C) 2011-2013 Intel Corporation
legal: add per-file authorship information. Credit original authors on a per-file basis as we cannot expect people to know all country-specific rules, or bother browsing through the git history.
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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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.
*
* 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
*/
#ifndef GST_VAAPI_SURFACE_PRIV_H
#define GST_VAAPI_SURFACE_PRIV_H
surface: don't expose gst_vaapi_surface_get_parent_context(). gst_vaapi_surface_get_parent_context() was not meant to be exposed globally. It's just an internal helper function. However, it's still possible to get the parent context through the "parent-context" property.
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#include <gst/vaapi/gstvaapicontext.h>
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#include <gst/vaapi/gstvaapisurface.h>
surface: add simple surface info accessors as helper macros. Add helper macros to retrieve the VA surface information like size (width, height) or chroma type. This is a micro-optimization to avoid useless function calls and NULL pointer re-checks in internal routines.
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#include "gstvaapiobject_priv.h"
surface: re-indent all GstVaapiSurface related source code.
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G_BEGIN_DECLS
surface: add simple surface info accessors as helper macros. Add helper macros to retrieve the VA surface information like size (width, height) or chroma type. This is a micro-optimization to avoid useless function calls and NULL pointer re-checks in internal routines.
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typedef struct _GstVaapiSurfaceClass GstVaapiSurfaceClass;
/**
* GstVaapiSurface:
*
* A VA surface wrapper.
*/
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struct _GstVaapiSurface
{
/*< private >*/
GstVaapiObject parent_instance;
surface: add simple surface info accessors as helper macros. Add helper macros to retrieve the VA surface information like size (width, height) or chroma type. This is a micro-optimization to avoid useless function calls and NULL pointer re-checks in internal routines.
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surface: add initial support for foreign buffer imports. Add gst_vaapi_surface_new_from_buffer_proxy() helper function to create a VA surface from an external buffer provided throug the new GstVaapiBufferProxy object.
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GstVaapiBufferProxy *extbuf_proxy;
surface: re-indent all GstVaapiSurface related source code.
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GstVideoFormat format;
guint width;
guint height;
GstVaapiChromaType chroma_type;
GPtrArray *subpictures;
surface: add simple surface info accessors as helper macros. Add helper macros to retrieve the VA surface information like size (width, height) or chroma type. This is a micro-optimization to avoid useless function calls and NULL pointer re-checks in internal routines.
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};
/**
* GstVaapiSurfaceClass:
*
* A VA surface wrapper class.
*/
surface: re-indent all GstVaapiSurface related source code.
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struct _GstVaapiSurfaceClass
{
/*< private >*/
GstVaapiObjectClass parent_class;
surface: add simple surface info accessors as helper macros. Add helper macros to retrieve the VA surface information like size (width, height) or chroma type. This is a micro-optimization to avoid useless function calls and NULL pointer re-checks in internal routines.
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};
/**
* GST_VAAPI_SURFACE_SURFACE_CHROMA_TYPE:
* @surface: a #GstVaapiSurface
*
* Macro that evaluates to the @surface chroma type.
*
* This is an internal macro that does not do any run-time type check.
*/
#undef GST_VAAPI_SURFACE_CHROMA_TYPE
#define GST_VAAPI_SURFACE_CHROMA_TYPE(surface) \
surface: re-indent all GstVaapiSurface related source code.
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(GST_VAAPI_SURFACE (surface)->chroma_type)
surface: add simple surface info accessors as helper macros. Add helper macros to retrieve the VA surface information like size (width, height) or chroma type. This is a micro-optimization to avoid useless function calls and NULL pointer re-checks in internal routines.
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surface: allow creation with explicit pixel format. Make it possible to create VA surfaces with a specific pixel format. This is a new capability brought in by VA-API >= 0.34.0. If that capability is not built-in (e.g. using VA-API < 0.34.0), then gst_vaapi_surface_new_with_format() will return NULL.
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/**
* GST_VAAPI_SURFACE_SURFACE_FORMAT:
* @surface: a #GstVaapiSurface
*
* Macro that evaluates to the @surface format.
*
* This is an internal macro that does not do any run-time type check.
*/
#undef GST_VAAPI_SURFACE_FORMAT
#define GST_VAAPI_SURFACE_FORMAT(surface) \
surface: re-indent all GstVaapiSurface related source code.
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(GST_VAAPI_SURFACE (surface)->format)
surface: allow creation with explicit pixel format. Make it possible to create VA surfaces with a specific pixel format. This is a new capability brought in by VA-API >= 0.34.0. If that capability is not built-in (e.g. using VA-API < 0.34.0), then gst_vaapi_surface_new_with_format() will return NULL.
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surface: add simple surface info accessors as helper macros. Add helper macros to retrieve the VA surface information like size (width, height) or chroma type. This is a micro-optimization to avoid useless function calls and NULL pointer re-checks in internal routines.
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/**
* GST_VAAPI_SURFACE_SURFACE_WIDTH:
* @surface: a #GstVaapiSurface
*
* Macro that evaluates to the @surface width in pixels.
*
* This is an internal macro that does not do any run-time type check.
*/
#undef GST_VAAPI_SURFACE_WIDTH
#define GST_VAAPI_SURFACE_WIDTH(surface) \
surface: re-indent all GstVaapiSurface related source code.
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(GST_VAAPI_SURFACE (surface)->width)
surface: add simple surface info accessors as helper macros. Add helper macros to retrieve the VA surface information like size (width, height) or chroma type. This is a micro-optimization to avoid useless function calls and NULL pointer re-checks in internal routines.
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/**
* GST_VAAPI_SURFACE_SURFACE_HEIGHT:
* @surface: a #GstVaapiSurface
*
* Macro that evaluates to the @surface height in pixels.
*
* This is an internal macro that does not do any run-time type check.
*/
#undef GST_VAAPI_SURFACE_HEIGHT
#define GST_VAAPI_SURFACE_HEIGHT(surface) \
surface: re-indent all GstVaapiSurface related source code.
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(GST_VAAPI_SURFACE (surface)->height)
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surface: re-indent all GstVaapiSurface related source code.
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G_END_DECLS
surface: don't expose gst_vaapi_surface_get_parent_context(). gst_vaapi_surface_get_parent_context() was not meant to be exposed globally. It's just an internal helper function. However, it's still possible to get the parent context through the "parent-context" property.
2012-01-18 09:42:38 +00:00
surface: record parent context.
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#endif /* GST_VAAPI_SURFACE_PRIV_H */
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