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bluez5: telephony: Add configuration to disable NR/EC

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This allows to disable the Noise Reduction and Echo Cancellation
on the Audio Gateway.
This commit is contained in:
Frédéric Danis 2024-12-11 14:27:39 +01:00
parent b7c00e2f24
commit fc45aba032
1 changed files with 24 additions and 0 deletions
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24
spa/plugins/bluez5/backend-native.c
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@ -47,6 +47,7 @@ SPA_LOG_TOPIC_DEFINE_STATIC(log_topic, "spa.bluez5.native");
#define PROP_KEY_ROLES "bluez5.roles"
#define PROP_KEY_HEADSET_ROLES "bluez5.headset-roles"
#define PROP_KEY_HFP_DISABLE_NREC "bluez5.hfp-hf.disable-nrec"
#define HFP_CODEC_SWITCH_INITIAL_TIMEOUT_MSEC 5000
#define HFP_CODEC_SWITCH_TIMEOUT_MSEC 20000
@ -98,6 +99,7 @@ struct impl {
#define DEFAULT_ENABLED_PROFILES (SPA_BT_PROFILE_HFP_HF | SPA_BT_PROFILE_HFP_AG)
enum spa_bt_profile enabled_profiles;
bool hfp_disable_nrec;
struct spa_source sco;
@ -132,6 +134,7 @@ enum hfp_hf_state {
hfp_hf_clip,
hfp_hf_ccwa,
hfp_hf_cmee,
hfp_hf_nrec,
hfp_hf_slc1,
hfp_hf_slc2,
hfp_hf_vgs,
@ -183,6 +186,7 @@ struct rfcomm {
unsigned int extended_error_reporting:1;
unsigned int clip_notify:1;
unsigned int hfp_hf_3way:1;
unsigned int hfp_hf_nrec:1;
unsigned int hfp_hf_clcc:1;
unsigned int hfp_hf_cme:1;
unsigned int hfp_hf_in_progress:1;
@ -1845,6 +1849,7 @@ static bool rfcomm_hfp_hf(struct rfcomm *rfcomm, char* token)
(rfcomm->msbc_supported_by_hfp || rfcomm->lc3_supported_by_hfp))
rfcomm->codec_negotiation_supported = true;
rfcomm->hfp_hf_3way = (features & SPA_BT_HFP_AG_FEATURE_3WAY) != 0;
rfcomm->hfp_hf_nrec = (features & SPA_BT_HFP_AG_FEATURE_ECNR) != 0;
rfcomm->hfp_hf_clcc = (features & SPA_BT_HFP_AG_FEATURE_ENHANCED_CALL_STATUS) != 0;
rfcomm->hfp_hf_cme = (features & SPA_BT_HFP_AG_FEATURE_EXTENDED_RES_CODE) != 0;
} else if (sscanf(token, "+BCS:%u", &selected_codec) == 1 && rfcomm->codec_negotiation_supported) {
@ -2255,6 +2260,13 @@ static bool rfcomm_hfp_hf(struct rfcomm *rfcomm, char* token)
}
SPA_FALLTHROUGH;
case hfp_hf_cmee:
if (backend->hfp_disable_nrec && rfcomm->hfp_hf_nrec) {
rfcomm_send_cmd(rfcomm, "AT+NREC=0");
rfcomm->hf_state = hfp_hf_nrec;
break;
}
SPA_FALLTHROUGH;
case hfp_hf_nrec:
rfcomm->hf_state = hfp_hf_slc1;
rfcomm->slc_configured = true;
@ -3830,6 +3842,16 @@ fallback:
return 0;
}
static void parse_hfp_disable_nrec(struct impl *backend, const struct spa_dict *info)
{
const char *str;
if ((str = spa_dict_lookup(info, PROP_KEY_HFP_DISABLE_NREC)) != NULL)
backend->hfp_disable_nrec = spa_atob(str);
else
backend->hfp_disable_nrec = false;
}
static const struct spa_bt_backend_implementation backend_impl = {
SPA_VERSION_BT_BACKEND_IMPLEMENTATION,
.free = backend_native_free,
@ -3887,6 +3909,8 @@ struct spa_bt_backend *backend_native_new(struct spa_bt_monitor *monitor,
if (parse_headset_roles(backend, info) < 0)
goto fail;
parse_hfp_disable_nrec(backend, info);
#ifdef HAVE_BLUEZ_5_BACKEND_HSP_NATIVE
if (!dbus_connection_register_object_path(backend->conn,
PROFILE_HSP_AG,