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9a5b2d42f9
Currently, the PipeWire daemon registers BlueZ LE Media Endpoints with audio capabilities covering all settings defined in the BAP spec. However, some scenarios might require the capabilities to be restricted to specific configurations. This adds a method to read LC3 codec specific capabilities from the Wireplumber config file, and provide those settings when registering Media Endpoint objects with BlueZ. If the values are not present in the config file, all settings will be used by default. Below is an example of how to set the LC3 capabilities in the config file, to support the 16_2 setting from the BAP spec: bluez5.bap-server-capabilities.rates = [16000] bluez5.bap-server-capabilities.durations = [10] bluez5.bap-server-capabilities.channels = [1, 2] bluez5.bap-server-capabilities.framelen_min = 40 bluez5.bap-server-capabilities.framelen_max = 40 bluez5.bap-server-capabilities.max_frames = 2
178 lines
6.3 KiB
C
178 lines
6.3 KiB
C
/* Spa BAP codec API */
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/* SPDX-FileCopyrightText: Copyright © 2022 Collabora */
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/* SPDX-License-Identifier: MIT */
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#ifndef SPA_BLUEZ5_BAP_CODEC_CAPS_H_
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#define SPA_BLUEZ5_BAP_CODEC_CAPS_H_
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#define BAP_CODEC_LC3 0x06
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#define LC3_TYPE_FREQ 0x01
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#define LC3_FREQ_8KHZ (1 << 0)
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#define LC3_FREQ_11KHZ (1 << 1)
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#define LC3_FREQ_16KHZ (1 << 2)
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#define LC3_FREQ_22KHZ (1 << 3)
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#define LC3_FREQ_24KHZ (1 << 4)
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#define LC3_FREQ_32KHZ (1 << 5)
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#define LC3_FREQ_44KHZ (1 << 6)
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#define LC3_FREQ_48KHZ (1 << 7)
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#define LC3_FREQ_ANY (LC3_FREQ_8KHZ | \
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LC3_FREQ_11KHZ | \
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LC3_FREQ_16KHZ | \
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LC3_FREQ_22KHZ | \
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LC3_FREQ_24KHZ | \
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LC3_FREQ_32KHZ | \
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LC3_FREQ_44KHZ | \
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LC3_FREQ_48KHZ)
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#define LC3_VAL_FREQ_8KHZ 8000
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#define LC3_VAL_FREQ_11KHZ 11025
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#define LC3_VAL_FREQ_16KHZ 16000
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#define LC3_VAL_FREQ_22KHZ 22050
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#define LC3_VAL_FREQ_24KHZ 24000
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#define LC3_VAL_FREQ_32KHZ 32000
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#define LC3_VAL_FREQ_44KHZ 44100
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#define LC3_VAL_FREQ_48KHZ 48000
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#define LC3_TYPE_DUR 0x02
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#define LC3_DUR_7_5 (1 << 0)
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#define LC3_DUR_10 (1 << 1)
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#define LC3_DUR_ANY (LC3_DUR_7_5 | \
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LC3_DUR_10)
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#define LC3_VAL_DUR_7_5 7.5
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#define LC3_VAL_DUR_10 10
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#define LC3_TYPE_CHAN 0x03
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#define LC3_CHAN_1 (1 << 0)
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#define LC3_CHAN_2 (1 << 1)
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#define LC3_CHAN_3 (1 << 2)
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#define LC3_CHAN_4 (1 << 3)
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#define LC3_CHAN_5 (1 << 4)
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#define LC3_CHAN_6 (1 << 5)
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#define LC3_CHAN_7 (1 << 6)
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#define LC3_CHAN_8 (1 << 7)
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#define LC3_VAL_CHAN_1 1
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#define LC3_VAL_CHAN_2 2
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#define LC3_VAL_CHAN_3 3
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#define LC3_VAL_CHAN_4 4
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#define LC3_VAL_CHAN_5 5
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#define LC3_VAL_CHAN_6 6
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#define LC3_VAL_CHAN_7 7
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#define LC3_VAL_CHAN_8 8
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#define LC3_TYPE_FRAMELEN 0x04
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#define LC3_TYPE_BLKS 0x05
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/* LC3 config parameters */
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#define LC3_CONFIG_FREQ_8KHZ 0x01
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#define LC3_CONFIG_FREQ_11KHZ 0x02
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#define LC3_CONFIG_FREQ_16KHZ 0x03
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#define LC3_CONFIG_FREQ_22KHZ 0x04
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#define LC3_CONFIG_FREQ_24KHZ 0x05
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#define LC3_CONFIG_FREQ_32KHZ 0x06
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#define LC3_CONFIG_FREQ_44KHZ 0x07
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#define LC3_CONFIG_FREQ_48KHZ 0x08
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#define LC3_CONFIG_DURATION_7_5 0x00
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#define LC3_CONFIG_DURATION_10 0x01
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#define LC3_MAX_CHANNELS 28
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#define BAP_CHANNEL_MONO 0x00000000 /* mono */
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#define BAP_CHANNEL_FL 0x00000001 /* front left */
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#define BAP_CHANNEL_FR 0x00000002 /* front right */
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#define BAP_CHANNEL_FC 0x00000004 /* front center */
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#define BAP_CHANNEL_LFE 0x00000008 /* LFE */
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#define BAP_CHANNEL_BL 0x00000010 /* back left */
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#define BAP_CHANNEL_BR 0x00000020 /* back right */
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#define BAP_CHANNEL_FLC 0x00000040 /* front left center */
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#define BAP_CHANNEL_FRC 0x00000080 /* front right center */
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#define BAP_CHANNEL_BC 0x00000100 /* back center */
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#define BAP_CHANNEL_LFE2 0x00000200 /* LFE 2 */
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#define BAP_CHANNEL_SL 0x00000400 /* side left */
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#define BAP_CHANNEL_SR 0x00000800 /* side right */
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#define BAP_CHANNEL_TFL 0x00001000 /* top front left */
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#define BAP_CHANNEL_TFR 0x00002000 /* top front right */
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#define BAP_CHANNEL_TFC 0x00004000 /* top front center */
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#define BAP_CHANNEL_TC 0x00008000 /* top center */
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#define BAP_CHANNEL_TBL 0x00010000 /* top back left */
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#define BAP_CHANNEL_TBR 0x00020000 /* top back right */
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#define BAP_CHANNEL_TSL 0x00040000 /* top side left */
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#define BAP_CHANNEL_TSR 0x00080000 /* top side right */
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#define BAP_CHANNEL_TBC 0x00100000 /* top back center */
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#define BAP_CHANNEL_BFC 0x00200000 /* bottom front center */
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#define BAP_CHANNEL_BFL 0x00400000 /* bottom front left */
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#define BAP_CHANNEL_BFR 0x00800000 /* bottom front right */
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#define BAP_CHANNEL_FLW 0x01000000 /* front left wide */
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#define BAP_CHANNEL_FRW 0x02000000 /* front right wide */
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#define BAP_CHANNEL_LS 0x04000000 /* left surround */
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#define BAP_CHANNEL_RS 0x08000000 /* right surround */
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#define BAP_CHANNEL_ALL 0x0fffffff /* mask of all */
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#define BAP_CONTEXT_PROHIBITED 0x0000 /* Prohibited */
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#define BAP_CONTEXT_UNSPECIFIED 0x0001 /* Unspecified */
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#define BAP_CONTEXT_CONVERSATIONAL 0x0002 /* Telephony, video calls, ... */
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#define BAP_CONTEXT_MEDIA 0x0004 /* Music, radio, podcast, movie soundtrack, TV */
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#define BAP_CONTEXT_GAME 0x0008 /* Gaming media, game effects, music, in-game voice chat */
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#define BAP_CONTEXT_INSTRUCTIONAL 0x0010 /* Instructional audio, navigation, announcements, user guidance */
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#define BAP_CONTEXT_VOICE 0x0020 /* Man-machine communication, voice recognition, virtual assistants */
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#define BAP_CONTEXT_LIVE 0x0040 /* Live audio, perceived both via direct acoustic path and via BAP */
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#define BAP_CONTEXT_SOUND_EFFECTS 0x0080 /* Keyboard and touch feedback, menu, UI, other system sounds */
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#define BAP_CONTEXT_NOTIFICATIONS 0x0100 /* Attention-seeking, message arrival, reminders */
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#define BAP_CONTEXT_RINGTONE 0x0200 /* Incoming call alert audio */
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#define BAP_CONTEXT_ALERTS 0x0400 /* Alarms and timers, critical battery, alarm clock, toaster */
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#define BAP_CONTEXT_EMERGENCY 0x0800 /* Fire alarm, other urgent alerts */
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#define BAP_CONTEXT_ALL 0x0fff
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#define BT_ISO_QOS_CIG_UNSET 0xff
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#define BT_ISO_QOS_CIS_UNSET 0xff
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#define BT_ISO_QOS_TARGET_LATENCY_LOW 0x01
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#define BT_ISO_QOS_TARGET_LATENCY_BALANCED 0x02
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#define BT_ISO_QOS_TARGET_LATENCY_RELIABILITY 0x03
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struct __attribute__((packed)) ltv {
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uint8_t len;
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uint8_t type;
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uint8_t value[];
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};
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struct bap_endpoint_qos {
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uint8_t framing;
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uint8_t phy;
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uint8_t retransmission;
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uint16_t latency;
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uint32_t delay_min;
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uint32_t delay_max;
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uint32_t preferred_delay_min;
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uint32_t preferred_delay_max;
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uint32_t locations;
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uint16_t supported_context;
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uint16_t context;
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uint32_t channel_allocation;
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};
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struct bap_codec_qos {
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uint32_t interval;
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uint8_t framing;
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uint8_t phy;
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uint16_t sdu;
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uint8_t retransmission;
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uint16_t latency;
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uint32_t delay;
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uint8_t target_latency;
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};
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struct bap_codec_qos_full {
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uint8_t cig;
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uint8_t cis;
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uint8_t big;
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uint8_t bis;
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struct bap_codec_qos qos;
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};
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#endif
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