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/* GStreamer JPEG 2000 Sampling
* Copyright (C) <2016> Grok Image Compression Inc.
* @author Aaron Boxer <boxerab@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_JPEG2000_SAMPLING_H__
#define __GST_JPEG2000_SAMPLING_H__
#include <gst/gst.h>
#include <gst/codecparsers/codecparsers-prelude.h>
/**
* GstJPEG2000Sampling:
* Sampling values from RF 5371 for JPEG 2000 over RTP : https://datatracker.ietf.org/doc/rfc5371/C
* Note: sampling extensions that are not listed in the RFC are signified by an _EXT at the end of the enum
*
* @GST_JPEG2000_SAMPLING_NONE: no sampling
* @GST_JPEG2000_SAMPLING_RGB: standard Red, Green, Blue color space.
* @GST_JPEG2000_SAMPLING_BGR: standard Blue, Green, Red color space.
* @GST_JPEG2000_SAMPLING_RGBA: standard Red, Green, Blue, Alpha color space.
* @GST_JPEG2000_SAMPLING_BGRA: standard Blue, Green, Red, Alpha color space.
* @GST_JPEG2000_SAMPLING_YCbCr-4:4:4: standard YCbCr color space; no subsampling.
* @GST_JPEG2000_SAMPLING_YCbCr-4:2:2: standard YCbCr color space; Cb and Cr are subsampled horizontally by 1/2.
* @GST_JPEG2000_SAMPLING_YCbCr-4:2:0: standard YCbCr color space; Cb and Cr are subsampled horizontally and vertically by 1/2.
* @GST_JPEG2000_SAMPLING_YCbCr-4:1:1: standard YCbCr color space; Cb and Cr are subsampled vertically by 1/4.
* @GST_JPEG2000_SAMPLING_GRAYSCALE: basically, a single component image of just multilevels of grey.
* @GST_JPEG2000_SAMPLING_YBRA4444_EXT: standard YCbCr color space, alpha channel, no subsampling,
*/
typedef enum
{
GST_JPEG2000_SAMPLING_NONE,
GST_JPEG2000_SAMPLING_RGB,
GST_JPEG2000_SAMPLING_BGR,
GST_JPEG2000_SAMPLING_RGBA,
GST_JPEG2000_SAMPLING_BGRA,
GST_JPEG2000_SAMPLING_YBR444,
GST_JPEG2000_SAMPLING_YBR422,
GST_JPEG2000_SAMPLING_YBR420,
GST_JPEG2000_SAMPLING_YBR410,
GST_JPEG2000_SAMPLING_GRAYSCALE,
GST_JPEG2000_SAMPLING_YBRA4444_EXT
} GstJPEG2000Sampling;
/* GST_JPEG2000_SAMPLING_LIST: sampling strings in list form, for use in caps */
#define GST_JPEG2000_SAMPLING_LIST "sampling = (string) {\"RGB\", \"BGR\", \"RGBA\", \"BGRA\", \"YCbCr-4:4:4\", \"YCbCr-4:2:2\", \"YCbCr-4:2:0\", \"YCbCr-4:1:1\", \"GRAYSCALE\" , \"YCbCrA-4:4:4:4\"}"
GST_CODEC_PARSERS_API
const gchar *gst_jpeg2000_sampling_to_string (GstJPEG2000Sampling sampling);
GST_CODEC_PARSERS_API
GstJPEG2000Sampling gst_jpeg2000_sampling_from_string (const gchar *
sampling_string);
GST_CODEC_PARSERS_API
gboolean gst_jpeg2000_sampling_is_rgb (GstJPEG2000Sampling sampling);
GST_CODEC_PARSERS_API
gboolean gst_jpeg2000_sampling_is_yuv (GstJPEG2000Sampling sampling);
GST_CODEC_PARSERS_API
gboolean gst_jpeg2000_sampling_is_mono (GstJPEG2000Sampling sampling);
/**
* GstJPEG2000Colorspace:
* @GST_JPEG2000_COLORSPACE_NONE: no color space
* @GST_JPEG2000_COLORSPACE_RGB: standard RGB color space
* @GST_JPEG2000_COLORSPACE_YUV: standard YUV color space
* @GST_JPEG2000_COLORSPACE_GRAY: monochrome color space
*/
typedef enum
{
GST_JPEG2000_COLORSPACE_NONE,
GST_JPEG2000_COLORSPACE_RGB,
GST_JPEG2000_COLORSPACE_YUV,
GST_JPEG2000_COLORSPACE_GRAY
} GstJPEG2000Colorspace;
GST_CODEC_PARSERS_API
const gchar *gst_jpeg2000_colorspace_to_string (GstJPEG2000Colorspace
colorspace);
GST_CODEC_PARSERS_API
GstJPEG2000Colorspace gst_jpeg2000_colorspace_from_string (const gchar *
colorspace_string);
/* GST_JPEG2000_COLORSPACE_LIST: color space strings in list form, for use in caps */
#define GST_JPEG2000_COLORSPACE_LIST "colorspace = (string) { \"sRGB\", \"sYUV\", \"GRAY\" }"
#endif
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