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/*
* Copyright (c) 2015 Kostya Shishkov
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_FORMATON_H
#define AVUTIL_FORMATON_H
#include <stdint.h>
#include "pixdesc.h"
typedef struct AVChromaton {
int plane;
/**
* might serve useful for packed formats - e.g. 4 or 2 bytes per entry
*/
int step;
/**
* subsampling information
*/
int h_sub_log, v_sub_log;
/**
* offset to the starting element, e.g. 0 for Y, 1 for U and 3 for V in YUYV
*/
int off;
/**
* component shift for packed, e.g. for RGB565 it will be 11,5,0
*/
int shift;
/**
* bits per component, e.g. for packed RGB565 you'll have 5,6,5
*/
int depth;
/**
* if component is packed with others (e.g. RGB24 - 1,1,1, NV12 - 0,1,1)
*/
int packed;
/**
* offset to the next element - e.g. 2 for Y and 4 for U and V in YUYV
*/
int next;
} AVChromaton;
typedef struct AVPixelFormaton {
#define AV_PIX_FORMATON_FLAG_BE (1 << 0)
#define AV_PIX_FORMATON_FLAG_ALPHA (1 << 1)
#define AV_PIX_FORMATON_FLAG_PAL (1 << 2)
/**
* Or-ed AV_PIX_FORMATON_FLAG_
*/
unsigned flags;
/**
* Size of all the pixel components packed as one element including
* padding.
*
* Useful to move to the next pixel in packeted formats.
*
* It is set to 0 for planar and quasi-planar formats.
*/
int pixel_next;
/**
* Number of entries in the palette if a palette is present.
*/
int nb_palette_entries;
enum AVColorModel model;
enum AVColorRange range;
enum AVColorPrimaries primaries;
enum AVColorTransferCharacteristic transfer;
enum AVColorSpace space;
enum AVChromaLocation location;
int nb_components;
#define AV_PIX_FORMATON_COMPONENTS 5
AVChromaton component_desc[AV_PIX_FORMATON_COMPONENTS];
} AVPixelFormaton;
AVPixelFormaton *av_formaton_from_pixfmt(enum AVPixelFormat pix_fmt);
void av_formaton_free(AVPixelFormaton **formaton);
#endif /* AVUTIL_FORMATON_H */
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