mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef BT_AUDIOCLIENT_H
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#define BT_AUDIOCLIENT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <errno.h>
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/**
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* SBC Codec parameters as per A2DP profile 1.0 § 4.3
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*/
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/* A2DP seid are 6 bytes long so HSP/HFP are assigned to 7-8 bits */
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#define BT_A2DP_SEID_RANGE (1 << 6) - 1
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#define BT_A2DP_SBC_SOURCE 0x00
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#define BT_A2DP_SBC_SINK 0x01
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#define BT_A2DP_MPEG12_SOURCE 0x02
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#define BT_A2DP_MPEG12_SINK 0x03
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#define BT_A2DP_MPEG24_SOURCE 0x04
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#define BT_A2DP_MPEG24_SINK 0x05
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#define BT_A2DP_ATRAC_SOURCE 0x06
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#define BT_A2DP_ATRAC_SINK 0x07
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#define BT_A2DP_UNKNOWN_SOURCE 0x08
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#define BT_A2DP_UNKNOWN_SINK 0x09
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#define BT_SBC_SAMPLING_FREQ_16000 (1 << 3)
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#define BT_SBC_SAMPLING_FREQ_32000 (1 << 2)
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#define BT_SBC_SAMPLING_FREQ_44100 (1 << 1)
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#define BT_SBC_SAMPLING_FREQ_48000 1
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#define BT_A2DP_CHANNEL_MODE_MONO (1 << 3)
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#define BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL (1 << 2)
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#define BT_A2DP_CHANNEL_MODE_STEREO (1 << 1)
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#define BT_A2DP_CHANNEL_MODE_JOINT_STEREO 1
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#define BT_A2DP_BLOCK_LENGTH_4 (1 << 3)
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#define BT_A2DP_BLOCK_LENGTH_8 (1 << 2)
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#define BT_A2DP_BLOCK_LENGTH_12 (1 << 1)
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#define BT_A2DP_BLOCK_LENGTH_16 1
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#define BT_A2DP_SUBBANDS_4 (1 << 1)
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#define BT_A2DP_SUBBANDS_8 1
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#define BT_A2DP_ALLOCATION_SNR (1 << 1)
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#define BT_A2DP_ALLOCATION_LOUDNESS 1
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typedef struct {
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uint8_t seid;
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uint8_t transport;
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uint8_t type;
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uint8_t length;
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uint8_t configured;
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uint8_t lock;
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uint8_t data[0];
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} __attribute__ ((packed)) codec_capabilities_t;
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typedef struct {
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codec_capabilities_t capability;
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uint8_t channel_mode;
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uint8_t frequency;
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uint8_t allocation_method;
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uint8_t subbands;
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uint8_t block_length;
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uint8_t min_bitpool;
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uint8_t max_bitpool;
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} __attribute__ ((packed)) sbc_capabilities_t;
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typedef struct {
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codec_capabilities_t capability;
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uint8_t channel_mode;
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uint8_t crc;
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uint8_t layer;
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uint8_t frequency;
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uint8_t mpf;
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uint16_t bitrate;
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} __attribute__ ((packed)) mpeg_capabilities_t;
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typedef struct {
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codec_capabilities_t capability;
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uint8_t flags;
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uint16_t sampling_rate;
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} __attribute__ ((packed)) pcm_capabilities_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* BT_AUDIOCLIENT_H */
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