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bluez5: add properties for A2DP codec sample rate & channel mode configuration

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Those properties are set as reference sample rate and channels number for A2DP configuration selecting.
This commit is contained in:
Huang-Huang Bao 2021-05-03 15:40:13 +08:00 • committed by Wim Taymans
parent 15239ff74d
commit 9384ba5500
8 changed files with 234 additions and 132 deletions
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45
spa/plugins/bluez5/a2dp-codec-ldac.c
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@ -95,11 +95,28 @@ static int codec_fill_caps(const struct a2dp_codec *codec, uint32_t flags, uint8
return sizeof(a2dp_ldac);
}
static struct a2dp_codec_config
ldac_frequencies[] = {
{ LDACBT_SAMPLING_FREQ_044100, 44100, 3 },
{ LDACBT_SAMPLING_FREQ_048000, 48000, 2 },
{ LDACBT_SAMPLING_FREQ_088200, 88200, 1 },
{ LDACBT_SAMPLING_FREQ_096000, 96000, 0 },
};
static struct a2dp_codec_config
ldac_channel_modes[] = {
{ LDACBT_CHANNEL_MODE_STEREO, 2, 2 },
{ LDACBT_CHANNEL_MODE_DUAL_CHANNEL, 2, 1 },
{ LDACBT_CHANNEL_MODE_MONO, 1, 0 },
};
static int codec_select_config(const struct a2dp_codec *codec, uint32_t flags,
const void *caps, size_t caps_size,
const struct a2dp_codec_audio_info *info,
const struct spa_dict *settings, uint8_t config[A2DP_MAX_CAPS_SIZE])
{
a2dp_ldac_t conf;
int i;
if (caps_size < sizeof(conf))
return -EINVAL;
@ -110,25 +127,21 @@ static int codec_select_config(const struct a2dp_codec *codec, uint32_t flags,
codec->vendor.codec_id != conf.info.codec_id)
return -ENOTSUP;
if (conf.frequency & LDACBT_SAMPLING_FREQ_044100)
conf.frequency = LDACBT_SAMPLING_FREQ_044100;
else if (conf.frequency & LDACBT_SAMPLING_FREQ_048000)
conf.frequency = LDACBT_SAMPLING_FREQ_048000;
else if (conf.frequency & LDACBT_SAMPLING_FREQ_088200)
conf.frequency = LDACBT_SAMPLING_FREQ_088200;
else if (conf.frequency & LDACBT_SAMPLING_FREQ_096000)
conf.frequency = LDACBT_SAMPLING_FREQ_096000;
else
if ((i = a2dp_codec_select_config(ldac_frequencies,
SPA_N_ELEMENTS(ldac_frequencies),
conf.frequency,
info ? info->rate : A2DP_CODEC_DEFAULT_RATE
)) < 0)
return -ENOTSUP;
conf.frequency = ldac_frequencies[i].config;
if (conf.channel_mode & LDACBT_CHANNEL_MODE_STEREO)
conf.channel_mode = LDACBT_CHANNEL_MODE_STEREO;
else if (conf.channel_mode & LDACBT_CHANNEL_MODE_DUAL_CHANNEL)
conf.channel_mode = LDACBT_CHANNEL_MODE_DUAL_CHANNEL;
else if (conf.channel_mode & LDACBT_CHANNEL_MODE_MONO)
conf.channel_mode = LDACBT_CHANNEL_MODE_MONO;
else
if ((i = a2dp_codec_select_config(ldac_channel_modes,
SPA_N_ELEMENTS(ldac_channel_modes),
conf.channel_mode,
info ? info->channels : A2DP_CODEC_DEFAULT_CHANNELS
)) < 0)
return -ENOTSUP;
conf.channel_mode = ldac_channel_modes[i].config;
memcpy(config, &conf, sizeof(conf));