gstreamer/gst/vaapi/gstvaapipluginutil.h

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/*
* gstvaapipluginutil.h - VA-API plugins private helper
*
2014-01-22 17:54:14 +00:00
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
* Copyright (C) 2011 Collabora
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
*
* 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_PLUGIN_UTIL_H
#define GST_VAAPI_PLUGIN_UTIL_H
#include <gst/vaapi/gstvaapidisplay.h>
#include <gst/vaapi/gstvaapisurface.h>
#if GST_CHECK_VERSION(1,0,0)
#include "gstvaapivideomemory.h"
#endif
G_GNUC_INTERNAL
gboolean
gst_vaapi_ensure_display (gpointer element, GstVaapiDisplayType type);
G_GNUC_INTERNAL
void
gst_vaapi_set_display (const gchar * type,
const GValue * value, GstVaapiDisplay ** display_ptr);
G_GNUC_INTERNAL
gboolean
gst_vaapi_reply_to_query (GstQuery * query, GstVaapiDisplay * display);
G_GNUC_INTERNAL
gboolean
gst_vaapi_append_surface_caps (GstCaps * out_caps, GstCaps * in_caps);
G_GNUC_INTERNAL
gboolean
gst_vaapi_apply_composition (GstVaapiSurface * surface, GstBuffer * buffer);
#ifndef G_PRIMITIVE_SWAP
#define G_PRIMITIVE_SWAP(type, a, b) do { \
const type t = a; a = b; b = t; \
} while (0)
#endif
/* Helpers for GValue construction for video formats */
G_GNUC_INTERNAL
gboolean
gst_vaapi_value_set_format (GValue * value, GstVideoFormat format);
G_GNUC_INTERNAL
gboolean
gst_vaapi_value_set_format_list (GValue * value, GArray * formats);
/* Helpers to build video caps */
typedef enum
{
GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY = 1,
GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META,
GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE,
} GstVaapiCapsFeature;
G_GNUC_INTERNAL
GstCaps *
gst_vaapi_video_format_new_template_caps (GstVideoFormat format);
G_GNUC_INTERNAL
GstCaps *
gst_vaapi_video_format_new_template_caps_from_list (GArray * formats);
G_GNUC_INTERNAL
GstCaps *
gst_vaapi_video_format_new_template_caps_with_features (GstVideoFormat format,
const gchar * features_string);
G_GNUC_INTERNAL
GstVaapiCapsFeature
gst_vaapi_find_preferred_caps_feature (GstPad * pad, GstVideoFormat format);
G_GNUC_INTERNAL
const gchar *
gst_vaapi_caps_feature_to_string (GstVaapiCapsFeature feature);
/* Helpers to handle interlaced contents */
#if GST_CHECK_VERSION(1,0,0)
# define GST_CAPS_INTERLACED_MODES \
"interlace-mode = (string){ progressive, interleaved, mixed }"
# define GST_CAPS_INTERLACED_FALSE \
"interlace-mode = (string)progressive"
#else
# define GST_CAPS_INTERLACED_MODES \
"interlaced = (boolean){ true, false }"
# define GST_CAPS_INTERLACED_FALSE \
"interlaced = (boolean)false"
#endif
G_GNUC_INTERNAL
gboolean
gst_caps_set_interlaced (GstCaps * caps, GstVideoInfo * vip);
G_GNUC_INTERNAL
gboolean
gst_caps_has_vaapi_surface (GstCaps * caps);
#endif /* GST_VAAPI_PLUGIN_UTIL_H */