dsd.h
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/* Simple Plugin API
*
* Copyright © 2021 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef SPA_AUDIO_DSD_H
#define SPA_AUDIO_DSD_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <spa/param/param.h>
#include <spa/param/audio/raw.h>
#define SPA_AUDIO_DSD_FLAG_NONE (0) /*< no valid flag */
/* DSD bits are transferred in a buffer grouped in bytes with the bitorder
* defined by \a bitorder.
*
* Channels are placed in separate planes (interleave = 0) or interleaved
* using the interleave value. A negative interleave value means that the
* bytes need to be reversed in the group.
*
* Planar (interleave = 0):
* plane1: l1 l2 l3 l4 l5 ...
* plane2: r1 r2 r3 r4 r5 ...
*
* Interleaved 4:
* plane1: l1 l2 l3 l4 r1 r2 r3 r4 l5 l6 l7 l8 r5 r6 r7 r8 l9 ...
*
* Interleaved 2:
* plane1: l1 l2 r1 r2 l3 l4 r3 r4 ...
*/
struct spa_audio_info_dsd {
enum spa_param_bitorder bitorder; /*< the order of the bits */
uint32_t flags; /*< extra flags */
int32_t interleave; /*< interleave bytes */
uint32_t rate; /*< sample rate (in bytes per second) */
uint32_t channels; /*< channels */
uint32_t position[SPA_AUDIO_MAX_CHANNELS]; /*< channel position from enum spa_audio_channel */
};
#define SPA_AUDIO_INFO_DSD_INIT(...) (struct spa_audio_info_dsd) { __VA_ARGS__ }
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_AUDIO_DSD_H */
raw.h
spa/param/audio/raw.h
spa_param_bitorder
spa_param_bitorder
Definition: param.h:208
SPA_AUDIO_MAX_CHANNELS
#define SPA_AUDIO_MAX_CHANNELS
Definition: raw.h:49
param.h
spa/param/param.h
spa_audio_info_dsd
Definition: dsd.h:68
spa_audio_info_dsd::position
uint32_t position[SPA_AUDIO_MAX_CHANNELS]
Definition: dsd.h:74
spa_audio_info_dsd::channels
uint32_t channels
Definition: dsd.h:73
spa_audio_info_dsd::bitorder
enum spa_param_bitorder bitorder
Definition: dsd.h:69
spa_audio_info_dsd::rate
uint32_t rate
Definition: dsd.h:72
spa_audio_info_dsd::interleave
int32_t interleave
Definition: dsd.h:71
spa_audio_info_dsd::flags
uint32_t flags
Definition: dsd.h:70