gstreamer/subprojects/gstreamer-vaapi/gst-libs/gst/vaapi/gstvaapiutils_mpeg2_priv.h

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/*
* gstvaapiutils_mpeg2_priv.h - MPEG-2 related utilities
*
2014-01-22 17:54:14 +00:00
* Copyright (C) 2011-2014 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_PRIV_H
#define GST_VAAPI_UTILS_MPEG2_PRIV_H
#include "gstvaapiutils_mpeg2.h"
#include "gstvaapisurface.h"
G_BEGIN_DECLS
/**
* GstVaapiMPEG2LevelLimits:
* @level: the #GstVaapiLevelMPEG2
* @level_idc: the MPEG-2 level indication value
* @horizontal_size_value: the maximum number of samples per line
* @vertical_size_value: the maximum number of lines per frame
* @frame_rate_value: the maximum number of frames per second
* @sample_rate: the maximum number of samples per second (for luminance)
* @bit_rate: the maximum bit rate (kbps)
* @vbv_buffer_size: the VBV buffer size requirements (bits)
*
* The data structure that describes the limits of an MPEG-2 level.
*/
typedef struct {
GstVaapiLevelMPEG2 level;
guint8 level_idc;
guint16 horizontal_size_value;
guint16 vertical_size_value;
guint32 frame_rate_value;
guint32 sample_rate;
guint32 bit_rate;
guint32 vbv_buffer_size;
} GstVaapiMPEG2LevelLimits;
/* Returns GstVaapiProfile from MPEG-2 profile_idc value */
G_GNUC_INTERNAL
GstVaapiProfile
gst_vaapi_utils_mpeg2_get_profile (guint8 profile_idc);
/* Returns MPEG-2 profile_idc value from GstVaapiProfile */
G_GNUC_INTERNAL
guint8
gst_vaapi_utils_mpeg2_get_profile_idc (GstVaapiProfile profile);
/* Returns GstVaapiLevelMPEG2 from MPEG-2 level_idc value */
G_GNUC_INTERNAL
GstVaapiLevelMPEG2
gst_vaapi_utils_mpeg2_get_level (guint8 level_idc);
/* Returns MPEG-2 level_idc value from GstVaapiLevelMPEG2 */
G_GNUC_INTERNAL
guint8
gst_vaapi_utils_mpeg2_get_level_idc (GstVaapiLevelMPEG2 level);
/* Returns level limits as specified in Table A-1 of the MPEG-2 standard */
G_GNUC_INTERNAL
const GstVaapiMPEG2LevelLimits *
gst_vaapi_utils_mpeg2_get_level_limits (GstVaapiLevelMPEG2 level);
/* Returns the Table A-1 specification */
G_GNUC_INTERNAL
const GstVaapiMPEG2LevelLimits *
gst_vaapi_utils_mpeg2_get_level_limits_table (guint * out_length_ptr);
/* Returns GstVaapiChromaType from MPEG-2 chroma_format_idc value */
G_GNUC_INTERNAL
GstVaapiChromaType
gst_vaapi_utils_mpeg2_get_chroma_type (guint chroma_format_idc);
/* Returns MPEG-2 chroma_format_idc value from GstVaapiChromaType */
G_GNUC_INTERNAL
guint
gst_vaapi_utils_mpeg2_get_chroma_format_idc (GstVaapiChromaType chroma_type);
G_END_DECLS
#endif /* GST_VAAPI_UTILS_MPEG2_PRIV_H */