PipeWire: dsd.h Source File

PipeWire 0.3.37

dsd.h
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1/* Simple Plugin API
2 *
3 * Copyright © 2021 Wim Taymans
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef SPA_AUDIO_DSD_H
26#define SPA_AUDIO_DSD_H
27
28#include <stdint.h>
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
34#include <spa/param/param.h>
35#include <spa/param/audio/raw.h>
36
43#define SPA_AUDIO_DSD_FLAG_NONE (0) /*< no valid flag */
44
45/* DSD bits are transfered in a buffer grouped in bytes with the bitorder
46 * defined by \a bitorder.
47 *
48 * Channels are placed in separate planes (interleave = 0) or interleaved
49 * using the interleave value. A negative interleave value means that the
50 * bytes need to be reversed in the group.
51 *
52 * Planar (interleave = 0):
53 * plane1: l1 l2 l3 l4 l5 ...
54 * plane2: r1 r2 r3 r4 r5 ...
55 *
56 * Interleaved 4:
57 * plane1: l1 l2 l3 l4 r1 r2 r3 r4 l5 l6 l7 l8 r5 r6 r7 r8 l9 ...
58 *
59 * Interleaved 2:
60 * plane1: l1 l2 r1 r2 l3 l4 r3 r4 ...
61 */
62 struct spa_audio_info_dsd {
63 enum spa_param_bitorder bitorder; /*< the order of the bits */
64 uint32_t flags; /*< extra flags */
65 int32_t interleave; /*< interleave bytes */
66 uint32_t rate; /*< sample rate (in bytes per second) */
67 uint32_t channels; /*< channels */
68 uint32_t position[SPA_AUDIO_MAX_CHANNELS]; /*< channel position from enum spa_audio_channel */
69};
70
71#define SPA_AUDIO_INFO_DSD_INIT(...) (struct spa_audio_info_dsd) { __VA_ARGS__ }
72
77#ifdef __cplusplus
78} /* extern "C" */
79#endif
80
81#endif /* SPA_AUDIO_DSD_H */
raw.h
spa_param_bitorder
spa_param_bitorder
Definition: param.h:197
SPA_AUDIO_MAX_CHANNELS
#define SPA_AUDIO_MAX_CHANNELS
Definition: audio/raw.h:43
param.h
spa_audio_info_dsd
Definition: dsd.h:62
spa_audio_info_dsd::position
uint32_t position[SPA_AUDIO_MAX_CHANNELS]
Definition: dsd.h:68
spa_audio_info_dsd::channels
uint32_t channels
Definition: dsd.h:67
spa_audio_info_dsd::bitorder
enum spa_param_bitorder bitorder
Definition: dsd.h:63
spa_audio_info_dsd::rate
uint32_t rate
Definition: dsd.h:66
spa_audio_info_dsd::interleave
int32_t interleave
Definition: dsd.h:65
spa_audio_info_dsd::flags
uint32_t flags
Definition: dsd.h:64