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61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/* Simple Plugin API */
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/* SPDX-FileCopyrightText: Copyright © 2021 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#ifndef SPA_AUDIO_DSD_H
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#define SPA_AUDIO_DSD_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <spa/param/param.h>
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#include <spa/param/audio/raw.h>
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/**
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* \addtogroup spa_param
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* \{
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*/
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/** Extra DSD audio flags */
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#define SPA_AUDIO_DSD_FLAG_NONE (0) /*< no valid flag */
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/* DSD bits are transferred in a buffer grouped in bytes with the bitorder
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* defined by \a bitorder.
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*
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* Channels are placed in separate planes (interleave = 0) or interleaved
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* using the interleave value. A negative interleave value means that the
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* bytes need to be reversed in the group.
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*
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* Planar (interleave = 0):
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* plane1: l1 l2 l3 l4 l5 ...
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* plane2: r1 r2 r3 r4 r5 ...
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*
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* Interleaved 4:
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* plane1: l1 l2 l3 l4 r1 r2 r3 r4 l5 l6 l7 l8 r5 r6 r7 r8 l9 ...
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*
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* Interleaved 2:
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* plane1: l1 l2 r1 r2 l3 l4 r3 r4 ...
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*/
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struct spa_audio_info_dsd {
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enum spa_param_bitorder bitorder; /*< the order of the bits */
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uint32_t flags; /*< extra flags */
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int32_t interleave; /*< interleave bytes */
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uint32_t rate; /*< sample rate (in bytes per second) */
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uint32_t channels; /*< channels */
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uint32_t position[SPA_AUDIO_MAX_CHANNELS]; /*< channel position from enum spa_audio_channel */
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};
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#define SPA_AUDIO_INFO_DSD_INIT(...) ((struct spa_audio_info_dsd) { __VA_ARGS__ })
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/**
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* \}
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*/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* SPA_AUDIO_DSD_H */
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