/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (c) 2016-2018 Arkadiusz Bokowy
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* Copyright (C) 2006-2010 Nokia Corporation
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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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 BLUEALSA_A2DPCODECS_H_
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#define BLUEALSA_A2DPCODECS_H_
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#include <stdint.h>
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#define A2DP_CODEC_SBC 0x00
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#define A2DP_CODEC_MPEG12 0x01
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#define A2DP_CODEC_MPEG24 0x02
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#define A2DP_CODEC_ATRAC 0x03
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#define A2DP_CODEC_VENDOR 0xFF
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/* customized 16-bit vendor extension */
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#define A2DP_CODEC_VENDOR_APTX 0x4FFF
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#define A2DP_CODEC_VENDOR_APTX_HD 0xD7FF
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#define A2DP_CODEC_VENDOR_LDAC 0x2DFF
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#define SBC_SAMPLING_FREQ_16000 (1 << 3)
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#define SBC_SAMPLING_FREQ_32000 (1 << 2)
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#define SBC_SAMPLING_FREQ_44100 (1 << 1)
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#define SBC_SAMPLING_FREQ_48000 (1 << 0)
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#define SBC_CHANNEL_MODE_MONO (1 << 3)
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#define SBC_CHANNEL_MODE_DUAL_CHANNEL (1 << 2)
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#define SBC_CHANNEL_MODE_STEREO (1 << 1)
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#define SBC_CHANNEL_MODE_JOINT_STEREO (1 << 0)
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#define SBC_BLOCK_LENGTH_4 (1 << 3)
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#define SBC_BLOCK_LENGTH_8 (1 << 2)
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#define SBC_BLOCK_LENGTH_12 (1 << 1)
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#define SBC_BLOCK_LENGTH_16 (1 << 0)
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#define SBC_SUBBANDS_4 (1 << 1)
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#define SBC_SUBBANDS_8 (1 << 0)
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#define SBC_ALLOCATION_SNR (1 << 1)
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#define SBC_ALLOCATION_LOUDNESS (1 << 0)
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#define SBC_MAX_BITPOOL 64
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#define SBC_MIN_BITPOOL 2
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#define MPEG_CHANNEL_MODE_MONO (1 << 3)
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#define MPEG_CHANNEL_MODE_DUAL_CHANNEL (1 << 2)
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#define MPEG_CHANNEL_MODE_STEREO (1 << 1)
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#define MPEG_CHANNEL_MODE_JOINT_STEREO (1 << 0)
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#define MPEG_LAYER_MP1 (1 << 2)
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#define MPEG_LAYER_MP2 (1 << 1)
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#define MPEG_LAYER_MP3 (1 << 0)
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#define MPEG_SAMPLING_FREQ_16000 (1 << 5)
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#define MPEG_SAMPLING_FREQ_22050 (1 << 4)
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#define MPEG_SAMPLING_FREQ_24000 (1 << 3)
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#define MPEG_SAMPLING_FREQ_32000 (1 << 2)
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#define MPEG_SAMPLING_FREQ_44100 (1 << 1)
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#define MPEG_SAMPLING_FREQ_48000 (1 << 0)
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#define MPEG_BIT_RATE_VBR 0x8000
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#define MPEG_BIT_RATE_320000 0x4000
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#define MPEG_BIT_RATE_256000 0x2000
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#define MPEG_BIT_RATE_224000 0x1000
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#define MPEG_BIT_RATE_192000 0x0800
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#define MPEG_BIT_RATE_160000 0x0400
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#define MPEG_BIT_RATE_128000 0x0200
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#define MPEG_BIT_RATE_112000 0x0100
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#define MPEG_BIT_RATE_96000 0x0080
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#define MPEG_BIT_RATE_80000 0x0040
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#define MPEG_BIT_RATE_64000 0x0020
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#define MPEG_BIT_RATE_56000 0x0010
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#define MPEG_BIT_RATE_48000 0x0008
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#define MPEG_BIT_RATE_40000 0x0004
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#define MPEG_BIT_RATE_32000 0x0002
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#define MPEG_BIT_RATE_FREE 0x0001
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#define AAC_OBJECT_TYPE_MPEG2_AAC_LC 0x80
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#define AAC_OBJECT_TYPE_MPEG4_AAC_LC 0x40
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#define AAC_OBJECT_TYPE_MPEG4_AAC_LTP 0x20
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#define AAC_OBJECT_TYPE_MPEG4_AAC_SCA 0x10
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#define AAC_SAMPLING_FREQ_8000 0x0800
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#define AAC_SAMPLING_FREQ_11025 0x0400
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#define AAC_SAMPLING_FREQ_12000 0x0200
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#define AAC_SAMPLING_FREQ_16000 0x0100
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#define AAC_SAMPLING_FREQ_22050 0x0080
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#define AAC_SAMPLING_FREQ_24000 0x0040
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#define AAC_SAMPLING_FREQ_32000 0x0020
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#define AAC_SAMPLING_FREQ_44100 0x0010
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#define AAC_SAMPLING_FREQ_48000 0x0008
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#define AAC_SAMPLING_FREQ_64000 0x0004
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#define AAC_SAMPLING_FREQ_88200 0x0002
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#define AAC_SAMPLING_FREQ_96000 0x0001
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#define AAC_CHANNELS_1 0x02
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#define AAC_CHANNELS_2 0x01
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#define AAC_GET_BITRATE(a) ((a).bitrate1 << 16 | \
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(a).bitrate2 << 8 | (a).bitrate3)
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#define AAC_GET_FREQUENCY(a) ((a).frequency1 << 4 | (a).frequency2)
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#define AAC_SET_BITRATE(a, b) \
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do { \
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(a).bitrate1 = ((b) >> 16) & 0x7f; \
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(a).bitrate2 = ((b) >> 8) & 0xff; \
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(a).bitrate3 = (b) & 0xff; \
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} while (0)
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#define AAC_SET_FREQUENCY(a, f) \
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do { \
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(a).frequency1 = ((f) >> 4) & 0xff; \
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(a).frequency2 = (f) & 0x0f; \
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} while (0)
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#define AAC_INIT_BITRATE(b) \
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.bitrate1 = ((b) >> 16) & 0x7f, \
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.bitrate2 = ((b) >> 8) & 0xff, \
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.bitrate3 = (b) & 0xff,
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#define AAC_INIT_FREQUENCY(f) \
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.frequency1 = ((f) >> 4) & 0xff, \
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.frequency2 = (f) & 0x0f,
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#define APTX_VENDOR_ID 0x0000004f
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#define APTX_CODEC_ID 0x0001
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#define APTX_CHANNEL_MODE_STEREO 0x02
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#define APTX_CHANNEL_MODE_MONO 0x01
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#define APTX_SAMPLING_FREQ_16000 0x08
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#define APTX_SAMPLING_FREQ_32000 0x04
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#define APTX_SAMPLING_FREQ_44100 0x02
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#define APTX_SAMPLING_FREQ_48000 0x01
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#define APTX_HD_VENDOR_ID 0x000000d7
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#define APTX_HD_CODEC_ID 0x0024
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#define APTX_HD_CHANNEL_MODE_STEREO 0x02
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#define APTX_HD_CHANNEL_MODE_MONO 0x01
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#define APTX_HD_SAMPLING_FREQ_16000 0x08
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#define APTX_HD_SAMPLING_FREQ_32000 0x04
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#define APTX_HD_SAMPLING_FREQ_44100 0x02
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#define APTX_HD_SAMPLING_FREQ_48000 0x01
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#define LDAC_VENDOR_ID 0x0000012d
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#define LDAC_CODEC_ID 0x00aa
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#define LDAC_CHANNEL_MODE_MONO 0x04
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#define LDAC_CHANNEL_MODE_DUAL_CHANNEL 0x02
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#define LDAC_CHANNEL_MODE_STEREO 0x01
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#define LDAC_SAMPLING_FREQ_44100 0x20
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#define LDAC_SAMPLING_FREQ_48000 0x10
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#define LDAC_SAMPLING_FREQ_88200 0x08
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#define LDAC_SAMPLING_FREQ_96000 0x04
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#define LDAC_SAMPLING_FREQ_176400 0x02
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#define LDAC_SAMPLING_FREQ_192000 0x01
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typedef struct {
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uint32_t vendor_id;
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uint16_t codec_id;
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} __attribute__ ((packed)) a2dp_vendor_codec_t;
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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typedef struct {
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uint8_t channel_mode:4;
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uint8_t frequency:4;
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uint8_t allocation_method:2;
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uint8_t subbands:2;
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uint8_t block_length:4;
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uint8_t min_bitpool;
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uint8_t max_bitpool;
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} __attribute__ ((packed)) a2dp_sbc_t;
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typedef struct {
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uint8_t channel_mode:4;
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uint8_t crc:1;
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uint8_t layer:3;
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uint8_t frequency:6;
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uint8_t mpf:1;
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uint8_t rfa:1;
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uint16_t bitrate;
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} __attribute__ ((packed)) a2dp_mpeg_t;
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typedef struct {
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uint8_t object_type;
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uint8_t frequency1;
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uint8_t rfa:2;
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uint8_t channels:2;
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uint8_t frequency2:4;
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uint8_t bitrate1:7;
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uint8_t vbr:1;
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uint8_t bitrate2;
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uint8_t bitrate3;
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} __attribute__ ((packed)) a2dp_aac_t;
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typedef struct {
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a2dp_vendor_codec_t info;
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uint8_t channel_mode:4;
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uint8_t frequency:4;
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} __attribute__ ((packed)) a2dp_aptx_t;
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typedef struct {
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a2dp_vendor_codec_t info;
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uint8_t channel_mode:4;
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uint8_t frequency:4;
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uint32_t rfa;
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} __attribute__ ((packed)) a2dp_aptx_hd_t;
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typedef struct {
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a2dp_vendor_codec_t info;
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uint8_t frequency:6;
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uint8_t rfa1:2;
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uint8_t channel_mode:3;
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uint8_t rfa2:5;
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} __attribute__ ((packed)) a2dp_ldac_t;
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#elif __BYTE_ORDER == __BIG_ENDIAN
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typedef struct {
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uint8_t frequency:4;
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uint8_t channel_mode:4;
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uint8_t block_length:4;
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uint8_t subbands:2;
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uint8_t allocation_method:2;
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uint8_t min_bitpool;
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uint8_t max_bitpool;
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} __attribute__ ((packed)) a2dp_sbc_t;
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typedef struct {
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uint8_t layer:3;
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uint8_t crc:1;
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uint8_t channel_mode:4;
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uint8_t rfa:1;
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uint8_t mpf:1;
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uint8_t frequency:6;
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uint16_t bitrate;
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} __attribute__ ((packed)) a2dp_mpeg_t;
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typedef struct {
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uint8_t object_type;
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uint8_t frequency1;
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uint8_t frequency2:4;
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uint8_t channels:2;
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uint8_t rfa:2;
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uint8_t vbr:1;
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uint8_t bitrate1:7;
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uint8_t bitrate2;
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uint8_t bitrate3;
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} __attribute__ ((packed)) a2dp_aac_t;
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typedef struct {
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a2dp_vendor_codec_t info;
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uint8_t frequency:4;
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uint8_t channel_mode:4;
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} __attribute__ ((packed)) a2dp_aptx_t;
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typedef struct {
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a2dp_vendor_codec_t info;
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uint8_t frequency:4;
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uint8_t channel_mode:4;
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uint32_t rfa;
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} __attribute__ ((packed)) a2dp_aptx_hd_t;
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typedef struct {
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a2dp_vendor_codec_t info;
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uint8_t rfa1:2;
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uint8_t frequency:6;
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uint8_t rfa2:5;
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uint8_t channel_mode:3;
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} __attribute__ ((packed)) a2dp_ldac_t;
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#else
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# error "Unknown byte order"
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#endif
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#endif
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