gstreamer/gst/vaapi/gstvaapipluginutil.h
Gwenole Beauchesne 8c93c842ef plugins: add support for BGRA textures.
Some frameworks (EFL) expect BGRA textures for storage. However,
adding support for that broadly into GStreamer framework  implies
two kinds of hacks: (i) libgstgl helpers currently do not support
BGRA textures correctly, (ii) we need to better parse downstream
suggested caps and intersect them with what the VA plugin elements
can offer to them for GL texturing.
2015-02-24 15:20:03 +01:00

126 lines
3.6 KiB
C

/*
* gstvaapipluginutil.h - VA-API plugins private helper
*
* 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,
GstVideoFormat * out_format_ptr);
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);
G_GNUC_INTERNAL
void
gst_video_info_change_format (GstVideoInfo * vip, GstVideoFormat format,
guint width, guint height);
#endif /* GST_VAAPI_PLUGIN_UTIL_H */