gstreamer/gst/vaapi/gstvaapipluginutil.h
Gwenole Beauchesne 113bd3a5f2 plugins: factor out construction of template caps.
Add new helper functions to build video template caps.
- gst_vaapi_video_format_new_template_caps():
  create GstCaps with size, frame rate and PAR to full range
- gst_vaapi_video_format_new_template_caps_from_list():
  try to create a "simplified" list from the supplied formats
2013-12-21 12:35:24 +01:00

93 lines
2.8 KiB
C

/*
* gstvaapipluginutil.h - VA-API plugins private helper
*
* Copyright (C) 2011-2013 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>
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 */
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);
/* 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);
#endif /* GST_VAAPI_PLUGIN_UTIL_H */