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mumble-voip_mumble/3rdparty/pipewire/spa/param/audio/raw.h
Davide Beatrici 0a31cd1c63 FEAT(client): Implement native support for PipeWire 
Tested with PipeWire 0.3.26.

The implementation is quite basic and simple, yet it surpasses the JACK one in terms of features.
For example, support for the most common surround mappings is provided.

As opposed to JACK, an option to disable the auto endpoint connection is not provided.
However, it's something that can be easily implemented if needed.

Support for echo cancellation will definitely be added in future.
2021-05-13 21:09:35 +02:00

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/* Simple Plugin API
*
* Copyright © 2018 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_RAW_H
#define SPA_AUDIO_RAW_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#ifndef __FreeBSD__
#include <endian.h>
#endif
#define SPA_AUDIO_MAX_CHANNELS 64u
enum spa_audio_format {
SPA_AUDIO_FORMAT_UNKNOWN,
SPA_AUDIO_FORMAT_ENCODED,
/* interleaved formats */
SPA_AUDIO_FORMAT_START_Interleaved = 0x100,
SPA_AUDIO_FORMAT_S8,
SPA_AUDIO_FORMAT_U8,
SPA_AUDIO_FORMAT_S16_LE,
SPA_AUDIO_FORMAT_S16_BE,
SPA_AUDIO_FORMAT_U16_LE,
SPA_AUDIO_FORMAT_U16_BE,
SPA_AUDIO_FORMAT_S24_32_LE,
SPA_AUDIO_FORMAT_S24_32_BE,
SPA_AUDIO_FORMAT_U24_32_LE,
SPA_AUDIO_FORMAT_U24_32_BE,
SPA_AUDIO_FORMAT_S32_LE,
SPA_AUDIO_FORMAT_S32_BE,
SPA_AUDIO_FORMAT_U32_LE,
SPA_AUDIO_FORMAT_U32_BE,
SPA_AUDIO_FORMAT_S24_LE,
SPA_AUDIO_FORMAT_S24_BE,
SPA_AUDIO_FORMAT_U24_LE,
SPA_AUDIO_FORMAT_U24_BE,
SPA_AUDIO_FORMAT_S20_LE,
SPA_AUDIO_FORMAT_S20_BE,
SPA_AUDIO_FORMAT_U20_LE,
SPA_AUDIO_FORMAT_U20_BE,
SPA_AUDIO_FORMAT_S18_LE,
SPA_AUDIO_FORMAT_S18_BE,
SPA_AUDIO_FORMAT_U18_LE,
SPA_AUDIO_FORMAT_U18_BE,
SPA_AUDIO_FORMAT_F32_LE,
SPA_AUDIO_FORMAT_F32_BE,
SPA_AUDIO_FORMAT_F64_LE,
SPA_AUDIO_FORMAT_F64_BE,
/* planar formats */
SPA_AUDIO_FORMAT_START_Planar = 0x200,
SPA_AUDIO_FORMAT_U8P,
SPA_AUDIO_FORMAT_S16P,
SPA_AUDIO_FORMAT_S24_32P,
SPA_AUDIO_FORMAT_S32P,
SPA_AUDIO_FORMAT_S24P,
SPA_AUDIO_FORMAT_F32P,
SPA_AUDIO_FORMAT_F64P,
SPA_AUDIO_FORMAT_S8P,
/* other formats start here */
SPA_AUDIO_FORMAT_START_Other = 0x400,
/* Aliases */
/* DSP formats */
SPA_AUDIO_FORMAT_DSP_S32 = SPA_AUDIO_FORMAT_S24_32P,
SPA_AUDIO_FORMAT_DSP_F32 = SPA_AUDIO_FORMAT_F32P,
SPA_AUDIO_FORMAT_DSP_F64 = SPA_AUDIO_FORMAT_F64P,
/* native endian */
#if __BYTE_ORDER == __BIG_ENDIAN
SPA_AUDIO_FORMAT_S16 = SPA_AUDIO_FORMAT_S16_BE,
SPA_AUDIO_FORMAT_U16 = SPA_AUDIO_FORMAT_U16_BE,
SPA_AUDIO_FORMAT_S24_32 = SPA_AUDIO_FORMAT_S24_32_BE,
SPA_AUDIO_FORMAT_U24_32 = SPA_AUDIO_FORMAT_U24_32_BE,
SPA_AUDIO_FORMAT_S32 = SPA_AUDIO_FORMAT_S32_BE,
SPA_AUDIO_FORMAT_U32 = SPA_AUDIO_FORMAT_U32_BE,
SPA_AUDIO_FORMAT_S24 = SPA_AUDIO_FORMAT_S24_BE,
SPA_AUDIO_FORMAT_U24 = SPA_AUDIO_FORMAT_U24_BE,
SPA_AUDIO_FORMAT_S20 = SPA_AUDIO_FORMAT_S20_BE,
SPA_AUDIO_FORMAT_U20 = SPA_AUDIO_FORMAT_U20_BE,
SPA_AUDIO_FORMAT_S18 = SPA_AUDIO_FORMAT_S18_BE,
SPA_AUDIO_FORMAT_U18 = SPA_AUDIO_FORMAT_U18_BE,
SPA_AUDIO_FORMAT_F32 = SPA_AUDIO_FORMAT_F32_BE,
SPA_AUDIO_FORMAT_F64 = SPA_AUDIO_FORMAT_F64_BE,
SPA_AUDIO_FORMAT_S16_OE = SPA_AUDIO_FORMAT_S16_LE,
SPA_AUDIO_FORMAT_U16_OE = SPA_AUDIO_FORMAT_U16_LE,
SPA_AUDIO_FORMAT_S24_32_OE = SPA_AUDIO_FORMAT_S24_32_LE,
SPA_AUDIO_FORMAT_U24_32_OE = SPA_AUDIO_FORMAT_U24_32_LE,
SPA_AUDIO_FORMAT_S32_OE = SPA_AUDIO_FORMAT_S32_LE,
SPA_AUDIO_FORMAT_U32_OE = SPA_AUDIO_FORMAT_U32_LE,
SPA_AUDIO_FORMAT_S24_OE = SPA_AUDIO_FORMAT_S24_LE,
SPA_AUDIO_FORMAT_U24_OE = SPA_AUDIO_FORMAT_U24_LE,
SPA_AUDIO_FORMAT_S20_OE = SPA_AUDIO_FORMAT_S20_LE,
SPA_AUDIO_FORMAT_U20_OE = SPA_AUDIO_FORMAT_U20_LE,
SPA_AUDIO_FORMAT_S18_OE = SPA_AUDIO_FORMAT_S18_LE,
SPA_AUDIO_FORMAT_U18_OE = SPA_AUDIO_FORMAT_U18_LE,
SPA_AUDIO_FORMAT_F32_OE = SPA_AUDIO_FORMAT_F32_LE,
SPA_AUDIO_FORMAT_F64_OE = SPA_AUDIO_FORMAT_F64_LE,
#elif __BYTE_ORDER == __LITTLE_ENDIAN
SPA_AUDIO_FORMAT_S16 = SPA_AUDIO_FORMAT_S16_LE,
SPA_AUDIO_FORMAT_U16 = SPA_AUDIO_FORMAT_U16_LE,
SPA_AUDIO_FORMAT_S24_32 = SPA_AUDIO_FORMAT_S24_32_LE,
SPA_AUDIO_FORMAT_U24_32 = SPA_AUDIO_FORMAT_U24_32_LE,
SPA_AUDIO_FORMAT_S32 = SPA_AUDIO_FORMAT_S32_LE,
SPA_AUDIO_FORMAT_U32 = SPA_AUDIO_FORMAT_U32_LE,
SPA_AUDIO_FORMAT_S24 = SPA_AUDIO_FORMAT_S24_LE,
SPA_AUDIO_FORMAT_U24 = SPA_AUDIO_FORMAT_U24_LE,
SPA_AUDIO_FORMAT_S20 = SPA_AUDIO_FORMAT_S20_LE,
SPA_AUDIO_FORMAT_U20 = SPA_AUDIO_FORMAT_U20_LE,
SPA_AUDIO_FORMAT_S18 = SPA_AUDIO_FORMAT_S18_LE,
SPA_AUDIO_FORMAT_U18 = SPA_AUDIO_FORMAT_U18_LE,
SPA_AUDIO_FORMAT_F32 = SPA_AUDIO_FORMAT_F32_LE,
SPA_AUDIO_FORMAT_F64 = SPA_AUDIO_FORMAT_F64_LE,
SPA_AUDIO_FORMAT_S16_OE = SPA_AUDIO_FORMAT_S16_BE,
SPA_AUDIO_FORMAT_U16_OE = SPA_AUDIO_FORMAT_U16_BE,
SPA_AUDIO_FORMAT_S24_32_OE = SPA_AUDIO_FORMAT_S24_32_BE,
SPA_AUDIO_FORMAT_U24_32_OE = SPA_AUDIO_FORMAT_U24_32_BE,
SPA_AUDIO_FORMAT_S32_OE = SPA_AUDIO_FORMAT_S32_BE,
SPA_AUDIO_FORMAT_U32_OE = SPA_AUDIO_FORMAT_U32_BE,
SPA_AUDIO_FORMAT_S24_OE = SPA_AUDIO_FORMAT_S24_BE,
SPA_AUDIO_FORMAT_U24_OE = SPA_AUDIO_FORMAT_U24_BE,
SPA_AUDIO_FORMAT_S20_OE = SPA_AUDIO_FORMAT_S20_BE,
SPA_AUDIO_FORMAT_U20_OE = SPA_AUDIO_FORMAT_U20_BE,
SPA_AUDIO_FORMAT_S18_OE = SPA_AUDIO_FORMAT_S18_BE,
SPA_AUDIO_FORMAT_U18_OE = SPA_AUDIO_FORMAT_U18_BE,
SPA_AUDIO_FORMAT_F32_OE = SPA_AUDIO_FORMAT_F32_BE,
SPA_AUDIO_FORMAT_F64_OE = SPA_AUDIO_FORMAT_F64_BE,
#endif
};
#define SPA_AUDIO_FORMAT_IS_INTERLEAVED(fmt) ((fmt) > SPA_AUDIO_FORMAT_START_Interleaved && (fmt) < SPA_AUDIO_FORMAT_START_Planar)
#define SPA_AUDIO_FORMAT_IS_PLANAR(fmt) ((fmt) > SPA_AUDIO_FORMAT_START_Planar && (fmt) < SPA_AUDIO_FORMAT_START_Other)
enum spa_audio_channel {
SPA_AUDIO_CHANNEL_UNKNOWN, /**< unspecified */
SPA_AUDIO_CHANNEL_NA, /**< N/A, silent */
SPA_AUDIO_CHANNEL_MONO, /**< mono stream */
SPA_AUDIO_CHANNEL_FL, /**< front left */
SPA_AUDIO_CHANNEL_FR, /**< front right */
SPA_AUDIO_CHANNEL_FC, /**< front center */
SPA_AUDIO_CHANNEL_LFE, /**< LFE */
SPA_AUDIO_CHANNEL_SL, /**< side left */
SPA_AUDIO_CHANNEL_SR, /**< side right */
SPA_AUDIO_CHANNEL_FLC, /**< front left center */
SPA_AUDIO_CHANNEL_FRC, /**< front right center */
SPA_AUDIO_CHANNEL_RC, /**< rear center */
SPA_AUDIO_CHANNEL_RL, /**< rear left */
SPA_AUDIO_CHANNEL_RR, /**< rear right */
SPA_AUDIO_CHANNEL_TC, /**< top center */
SPA_AUDIO_CHANNEL_TFL, /**< top front left */
SPA_AUDIO_CHANNEL_TFC, /**< top front center */
SPA_AUDIO_CHANNEL_TFR, /**< top front right */
SPA_AUDIO_CHANNEL_TRL, /**< top rear left */
SPA_AUDIO_CHANNEL_TRC, /**< top rear center */
SPA_AUDIO_CHANNEL_TRR, /**< top rear right */
SPA_AUDIO_CHANNEL_RLC, /**< rear left center */
SPA_AUDIO_CHANNEL_RRC, /**< rear right center */
SPA_AUDIO_CHANNEL_FLW, /**< front left wide */
SPA_AUDIO_CHANNEL_FRW, /**< front right wide */
SPA_AUDIO_CHANNEL_LFE2, /**< LFE 2 */
SPA_AUDIO_CHANNEL_FLH, /**< front left high */
SPA_AUDIO_CHANNEL_FCH, /**< front center high */
SPA_AUDIO_CHANNEL_FRH, /**< front right high */
SPA_AUDIO_CHANNEL_TFLC, /**< top front left center */
SPA_AUDIO_CHANNEL_TFRC, /**< top front right center */
SPA_AUDIO_CHANNEL_TSL, /**< top side left */
SPA_AUDIO_CHANNEL_TSR, /**< top side right */
SPA_AUDIO_CHANNEL_LLFE, /**< left LFE */
SPA_AUDIO_CHANNEL_RLFE, /**< right LFE */
SPA_AUDIO_CHANNEL_BC, /**< bottom center */
SPA_AUDIO_CHANNEL_BLC, /**< bottom left center */
SPA_AUDIO_CHANNEL_BRC, /**< bottom right center */
SPA_AUDIO_CHANNEL_CUSTOM_START = 0x10000,
};
/** Extra audio flags */
#define SPA_AUDIO_FLAG_NONE (0) /*< no valid flag */
#define SPA_AUDIO_FLAG_UNPOSITIONED (1 << 0) /*< the position array explicitly
* contains unpositioned channels. */
/** Audio information description */
struct spa_audio_info_raw {
enum spa_audio_format format; /*< format, one of enum spa_audio_format */
uint32_t flags; /*< extra flags */
uint32_t rate; /*< sample rate */
uint32_t channels; /*< number of channels */
uint32_t position[SPA_AUDIO_MAX_CHANNELS]; /*< channel position from enum spa_audio_channel */
};
#define SPA_AUDIO_INFO_RAW_INIT(...) (struct spa_audio_info_raw) { __VA_ARGS__ }
#define SPA_KEY_AUDIO_FORMAT "audio.format" /**< an audio format as string,
* Ex. "S16LE" */
#define SPA_KEY_AUDIO_CHANNEL "audio.channel" /**< an audio channel as string,
* Ex. "FL" */
#define SPA_KEY_AUDIO_CHANNELS "audio.channels" /**< an audio channel count as int */
#define SPA_KEY_AUDIO_RATE "audio.rate" /**< an audio sample rate as int */
#define SPA_KEY_AUDIO_POSITION "audio.position" /**< channel positions as comma separated list
* of channels ex. "FL,FR" */
struct spa_audio_info_dsp {
enum spa_audio_format format; /*< format, one of the DSP formats in enum spa_audio_format_dsp */
};
#define SPA_AUDIO_INFO_DSP_INIT(...) (struct spa_audio_info_dsp) { __VA_ARGS__ }
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_AUDIO_RAW_H */
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