gstreamer/gst-libs/gst/vaapi/gstvaapiutils_mpeg2.h
Gwenole Beauchesne 9548e32cf4 utils: add new MPEG-2 helper functions.
Add various helper functions to convert profile, level, chroma formats
from gstreamer-vaapi world and the MPEG-2 specification world.
2014-01-13 16:25:49 +01:00

71 lines
2.3 KiB
C

/*
* gstvaapiutils_mpeg2.h - MPEG-2 related utilities
*
* Copyright (C) 2011-2013 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* 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_UTILS_MPEG2_H
#define GST_VAAPI_UTILS_MPEG2_H
#include <va/va.h>
#include <gst/vaapi/gstvaapiprofile.h>
#include <gst/vaapi/gstvaapisurface.h>
G_BEGIN_DECLS
/**
* GstVaapiLevelMPEG2:
* @GST_VAAPI_LEVEL_MPEG2_LOW: Low level.
* @GST_VAAPI_LEVEL_MPEG2_MAIN: Main level.
* @GST_VAAPI_LEVEL_MPEG2_HIGH_1440: High-1440 level.
* @GST_VAAPI_LEVEL_MPEG2_HIGH: High level.
*
* The set of all levels for #GstVaapiLevelMPEG2.
*/
typedef enum
{
GST_VAAPI_LEVEL_MPEG2_LOW = 1,
GST_VAAPI_LEVEL_MPEG2_MAIN,
GST_VAAPI_LEVEL_MPEG2_HIGH_1440,
GST_VAAPI_LEVEL_MPEG2_HIGH,
} GstVaapiLevelMPEG2;
/* Returns a relative score for the supplied GstVaapiProfile */
guint
gst_vaapi_utils_mpeg2_get_profile_score (GstVaapiProfile profile);
/* Returns GstVaapiProfile from a string representation */
GstVaapiProfile
gst_vaapi_utils_mpeg2_get_profile_from_string (const gchar * str);
/* Returns a string representation for the supplied MPEG-2 profile */
const gchar *
gst_vaapi_utils_mpeg2_get_profile_string (GstVaapiProfile profile);
/* Returns GstVaapiLevelMPEG2 from a string representation */
GstVaapiLevelMPEG2
gst_vaapi_utils_mpeg2_get_level_from_string (const gchar * str);
/* Returns a string representation for the supplied MPEG-2 level */
const gchar *
gst_vaapi_utils_mpeg2_get_level_string (GstVaapiLevelMPEG2 level);
G_END_DECLS
#endif /* GST_VAAPI_UTILS_MPEG2_H */