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97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/*
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* gstvaapiutils_mpeg2_priv.h - MPEG-2 related utilities
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*
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* Copyright (C) 2011-2014 Intel Corporation
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef GST_VAAPI_UTILS_MPEG2_PRIV_H
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#define GST_VAAPI_UTILS_MPEG2_PRIV_H
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#include "gstvaapiutils_mpeg2.h"
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#include "gstvaapisurface.h"
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G_BEGIN_DECLS
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/**
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* GstVaapiMPEG2LevelLimits:
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* @level: the #GstVaapiLevelMPEG2
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* @level_idc: the MPEG-2 level indication value
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* @horizontal_size_value: the maximum number of samples per line
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* @vertical_size_value: the maximum number of lines per frame
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* @frame_rate_value: the maximum number of frames per second
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* @sample_rate: the maximum number of samples per second (for luminance)
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* @bit_rate: the maximum bit rate (kbps)
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* @vbv_buffer_size: the VBV buffer size requirements (bits)
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*
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* The data structure that describes the limits of an MPEG-2 level.
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*/
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typedef struct {
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GstVaapiLevelMPEG2 level;
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guint8 level_idc;
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guint16 horizontal_size_value;
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guint16 vertical_size_value;
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guint32 frame_rate_value;
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guint32 sample_rate;
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guint32 bit_rate;
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guint32 vbv_buffer_size;
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} GstVaapiMPEG2LevelLimits;
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/* Returns GstVaapiProfile from MPEG-2 profile_idc value */
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G_GNUC_INTERNAL
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GstVaapiProfile
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gst_vaapi_utils_mpeg2_get_profile (guint8 profile_idc);
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/* Returns MPEG-2 profile_idc value from GstVaapiProfile */
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G_GNUC_INTERNAL
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guint8
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gst_vaapi_utils_mpeg2_get_profile_idc (GstVaapiProfile profile);
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/* Returns GstVaapiLevelMPEG2 from MPEG-2 level_idc value */
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G_GNUC_INTERNAL
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GstVaapiLevelMPEG2
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gst_vaapi_utils_mpeg2_get_level (guint8 level_idc);
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/* Returns MPEG-2 level_idc value from GstVaapiLevelMPEG2 */
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G_GNUC_INTERNAL
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guint8
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gst_vaapi_utils_mpeg2_get_level_idc (GstVaapiLevelMPEG2 level);
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/* Returns level limits as specified in Table A-1 of the MPEG-2 standard */
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G_GNUC_INTERNAL
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const GstVaapiMPEG2LevelLimits *
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gst_vaapi_utils_mpeg2_get_level_limits (GstVaapiLevelMPEG2 level);
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/* Returns the Table A-1 specification */
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G_GNUC_INTERNAL
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const GstVaapiMPEG2LevelLimits *
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gst_vaapi_utils_mpeg2_get_level_limits_table (guint * out_length_ptr);
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/* Returns GstVaapiChromaType from MPEG-2 chroma_format_idc value */
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G_GNUC_INTERNAL
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GstVaapiChromaType
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gst_vaapi_utils_mpeg2_get_chroma_type (guint chroma_format_idc);
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/* Returns MPEG-2 chroma_format_idc value from GstVaapiChromaType */
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G_GNUC_INTERNAL
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guint
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gst_vaapi_utils_mpeg2_get_chroma_format_idc (GstVaapiChromaType chroma_type);
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G_END_DECLS
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#endif /* GST_VAAPI_UTILS_MPEG2_PRIV_H */
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