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a2dp: add property to force LDAC encoding quality

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Fixes #661
This commit is contained in:
Huang-Huang Bao 2021-03-19 14:38:46 +08:00 • committed by Wim Taymans
parent 343be7503a
commit 43603dd75d
2 changed files with 39 additions and 9 deletions
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39
spa/plugins/bluez5/a2dp-codec-ldac.c
View file

@ -55,8 +55,9 @@ struct impl {
HANDLE_LDAC_BT ldac;
#ifdef ENABLE_LDAC_ABR
HANDLE_LDAC_ABR ldac_abr;
bool enable_abr;
#endif
bool enable_abr;
struct rtp_header *header;
struct rtp_payload *payload;
@ -274,11 +275,11 @@ static int update_frame_info(struct impl *this)
static int codec_reduce_bitpool(void *data)
{
#ifdef ENABLE_LDAC_ABR
return -EINVAL;
return -ENOTSUP;
#else
struct impl *this = data;
int res;
if (this->eqmid == LDACBT_EQMID_BITRATE_330000)
if (this->eqmid == LDACBT_EQMID_BITRATE_330000 || !this->enable_abr)
return this->eqmid;
res = ldacBT_alter_eqmid_priority(this->ldac, LDACBT_EQMID_INC_CONNECTION);
update_frame_info(this);
@ -289,10 +290,12 @@ static int codec_reduce_bitpool(void *data)
static int codec_increase_bitpool(void *data)
{
#ifdef ENABLE_LDAC_ABR
return -EINVAL;
return -ENOTSUP;
#else
struct impl *this = data;
int res;
if (!this->enable_abr)
return this->eqmid;
res = ldacBT_alter_eqmid_priority(this->ldac, LDACBT_EQMID_INC_QUALITY);
update_frame_info(this);
return res;
@ -311,6 +314,20 @@ static int codec_get_block_size(void *data)
return this->codesize;
}
static int string_to_eqmid(const char * eqmid)
{
if (!strcmp("auto", eqmid))
return LDACBT_EQMID_ABR;
else if (!strcmp("hq", eqmid))
return LDACBT_EQMID_HQ;
else if (!strcmp("sq", eqmid))
return LDACBT_EQMID_SQ;
else if (!strcmp("mq", eqmid))
return LDACBT_EQMID_MQ;
else
return LDACBT_EQMID_ABR;
}
static void *codec_init(const struct a2dp_codec *codec, uint32_t flags,
void *config, size_t config_len, const struct spa_audio_info *info,
const struct spa_dict *settings, size_t mtu)
@ -318,6 +335,7 @@ static void *codec_init(const struct a2dp_codec *codec, uint32_t flags,
struct impl *this;
a2dp_ldac_t *conf = config;
int res;
const char *str;
this = calloc(1, sizeof(struct impl));
if (this == NULL)
@ -333,7 +351,14 @@ static void *codec_init(const struct a2dp_codec *codec, uint32_t flags,
goto error_errno;
#endif
this->eqmid = LDACBT_EQMID_SQ;
if ((str = spa_dict_lookup(settings, "bluez5.a2dp.ldac.quality")) == NULL)
str = "auto";
if ((this->eqmid = string_to_eqmid(str)) == LDACBT_EQMID_ABR) {
this->eqmid = LDACBT_EQMID_SQ;
this->enable_abr = true;
}
this->mtu = mtu;
this->frequency = info->info.raw.rate;
this->codesize = info->info.raw.channels;
@ -397,8 +422,6 @@ static void *codec_init(const struct a2dp_codec *codec, uint32_t flags,
LDAC_ABR_THRESHOLD_SAFETY_FOR_HQSQ);
if (res < 0)
goto error;
this->enable_abr = true;
#endif
update_frame_info(this);
@ -441,7 +464,7 @@ static int codec_abr_process(void *data, size_t unsent)
update_frame_info(this);
return res;
#else
return -EINVAL;
return -ENOTSUP;
#endif
}

9
src/daemon/media-session.d/bluez-monitor.conf
View file

@ -34,7 +34,14 @@ rules = [
# Actions can update properties on the matched object.
update-props = {
# MSBC is not expected to work on all headset + adapter combinations.
#bluez5.msbc-support = true
#bluez5.msbc-support = false
# LDAC encoding quality
# Available values: auto (Adaptive Bitrate, default)
# hq (High Quality, 990/909kbps)
# sq (Standard Quality, 660/606kbps)
# mq (Mobile use Quality, 330/303kbps)
#bluez5.a2dp.ldac.quality = auto
}
}
}