1/* GStreamer
2 * Copyright (C) 2023 Carlos Rafael Giani <crg7475@mailbox.org>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#pragma once
21
22#include <gst/gst.h>
23#include <gst/audio/audio-prelude.h>
24
25G_BEGIN_DECLS
26
27#if G_BYTE_ORDER == G_BIG_ENDIAN
28#define _GST_DSD_FORMAT_NE(fmt) GST_DSD_FORMAT_ ## fmt ## BE
29#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
30#define _GST_DSD_FORMAT_NE(fmt) GST_DSD_FORMAT_ ## fmt ## LE
31#endif
32
33/**
34 * GstDsdFormat:
35 * @GST_DSD_FORMAT_UNKNOWN: unknown / invalid DSD format
36 * @GST_DSD_FORMAT_U8: 8 DSD bits in 1 byte
37 * @GST_DSD_FORMAT_U16LE: 16 DSD bits in 2 bytes, little endian order
38 * @GST_DSD_FORMAT_U16BE: 16 DSD bits in 2 bytes, big endian order
39 * @GST_DSD_FORMAT_U32LE: 32 DSD bits in 4 bytes, little endian order
40 * @GST_DSD_FORMAT_U32BE: 32 DSD bits in 4 bytes, big endian order
41 * @GST_NUM_DSD_FORMATS: number of valid DSD formats
42 * @GST_DSD_FORMAT_U16: 16 DSD bits in 2 bytes, native endianness
43 * @GST_DSD_FORMAT_U32: 32 DSD bits in 4 bytes, native endianness
44 *
45 * Enum value describing how DSD bits are grouped.
46 *
47 * Since: 1.24
48 */
49typedef enum {
50 GST_DSD_FORMAT_UNKNOWN = 0,
51 GST_DSD_FORMAT_U8,
52 GST_DSD_FORMAT_U16LE,
53 GST_DSD_FORMAT_U16BE,
54 GST_DSD_FORMAT_U32LE,
55 GST_DSD_FORMAT_U32BE,
56
57 GST_NUM_DSD_FORMATS,
58
59 /* native endianness equivalents */
60 GST_DSD_FORMAT_U16 = _GST_DSD_FORMAT_NE(U16),
61 GST_DSD_FORMAT_U32 = _GST_DSD_FORMAT_NE(U32)
62} GstDsdFormat;
63
64/**
65 * GST_DSD_FORMATS_ALL:
66 *
67 * List of all DSD formats, for use in template caps strings.
68 *
69 * Big endian formats are preferred, since little-endian ones flip around
70 * the DSD bytes, and most DSD hardware uses big endian formats.
71 *
72 * Since: 1.24
73 */
74#define GST_DSD_FORMATS_ALL "{ DSDU32BE, DSDU16BE, DSDU8, DSDU32LE, DSDU16LE }"
75
76GST_AUDIO_API
77GstDsdFormat gst_dsd_format_from_string (const gchar *str);
78
79GST_AUDIO_API
80const gchar * gst_dsd_format_to_string (GstDsdFormat format);
81
82GST_AUDIO_API
83guint gst_dsd_format_get_width (GstDsdFormat format);
84
85G_END_DECLS
86

source code of include/gstreamer-1.0/gst/audio/gstdsdformat.h